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Sample records for arborescens miller cultivados

  1. 开普芦荟和木立芦荟的染色体核型分析%KARYOTYPE ANALYSIS OF ALOE FEROX MILLER AND ALOE ARBORESCENS MILLER

    Institute of Scientific and Technical Information of China (English)

    梁秀梅; 卜秀玲

    2001-01-01

    对盆栽开普卢荟(Aloe ferox Miller)和木立卢荟(Aloe a rborescens Miller) 植物根尖细胞的染色体进行了观察分析。结果表明开普芦荟和木立芦荟的染色体数与已见报导的百合科(Liliaceae)中国芦荟(Alov vera var.chinensis)植物染色体数相同,2n=14。染色体类型按Levan方法分类,没有近端部染色体和随体。开普芦荟和木立芦荟的染色体核型分析结果均为 K(2n)=2x=4sm+10st。根据Stebbins的核型分类标准,开普芦荟的核型为“4C”型,而木立芦荟的核型为“3C”型。两种芦荟染色体相对长度组成均为2n=14=6L+2M 2+6S 。根据核型研究,可以确定百合科开普芦荟和木立芦荟的染色体基数为X=7。

  2. Lipoma arborescens affecting multiple joints

    Energy Technology Data Exchange (ETDEWEB)

    Bejia, Ismail; Younes, Mohamed; Touzi, Mongi; Bergaoui, Naceur [EPS Monastir, Department of Rheumatology, Monastir (Tunisia); Moussa, Adnene [Faculty of Medicine of Monastir, Department of Anatomopathology, Monastir (Tunisia); Said, Mourad [EPS Monastir, Department of Radiology, Monastir (Tunisia)

    2005-09-01

    Lipoma arborescens is a rare benign intra-articular lesion of unknown etiology that usually involves the suprapatellar pouch of the knee joint. Clinically, the most common finding is a slow-growing painless swelling, accompanied by intermittent effusion of the joint. We report a case of a multifocal lipoma arborescens localized in the knees and the hips in a 24-year-old man, initially mimicking an inflammatory arthropathy. The diagnosis of lipoma arborescens was made by magnetic resonance imaging of the hips and the knees. Under arthroscopic guidance, the synovial biopsy of the right knee disclosed the specific histological signs of lipoma arborescens. As far as we know, this is the third case of multifocal lipoma arborescens reported in the English literature. (orig.)

  3. Diagnostic imaging of lipoma arborescens

    International Nuclear Information System (INIS)

    Objective. The imaging characteristics of lipoma arborescens using plain radiographs, computed tomography (CT), and magnetic resonance imaging (MRI) are described. Design and patients. Five patients with a diagnosis of lipoma arborescens are presented. Three had monoarticular involvement of the knee joint. In the remaining two patients both knees and both hips, respectively, were affected. All patients were examined using plain radiographs and MRI. CT was employed in two cases. Results and conclusions. A conclusive diagnosis with exclusion of other synovial pathologies having similar clinical and radiological behaviour can be achieved on the basis of the MRI characteristics of lipoma arborescens. The aetiology of lipoma arborescens remains unknown, but its association with previous pathology of the affected joints in all our patients supports the theory of a non-neoplastic reactive process involving the synovial membrane. (orig.)

  4. New ceramides from Acnistus arborescens

    Energy Technology Data Exchange (ETDEWEB)

    Maia, Ana Isabel V.; Veras, Maria Leopoldina; Braz-Filho, Raimundo; Silveira, Edilberto R.; Pessoa, Otilia Deusdenia L., E-mail: opessoa@ufc.b [Universidade Federal do Ceara (UFC), Fortaleza, CE (Brazil). Dept. de Quimica Organica e Inorganica; Lopes, Norberto P. [Universidade de Sao Paulo (USP), Ribeirao Preto, SP (Brazil). Faculdade de Ciencias Farmaceuticas. Dept. de Fisica e Quimica

    2010-07-01

    Two new ceramides, N-(4-hydroxyphenethyl)octacosamide (1) and rel-(2S,3S,4R,16E)-2- [(2'R)-2'-hydroxynonadecanoylamino]-heneicosadec-16-ene-1,3,4-triol (2) were isolated from the EtOH extract of Acnistus arborescens. The structures were elucidated by spectroscopic (1D and 2D NMR experiments, HR-ESI-MS, LR-MS and IR) methods. (author)

  5. Lipoma arborescens: diagnosis and image; Lipoma arborescens: diagnostico e imagem

    Energy Technology Data Exchange (ETDEWEB)

    Goncalves, Marcela; Len, Claudio Arnaldo; Terreri, Maria Teresa Ramos Ascencao [Universidade Federal de Sao Paulo (UNIFESP/EPM), SP (Brazil). Setor de Reumatologia Pediatrica; Fernandes, Artur da Rocha Correa [Universidade Federal de Sao Paulo (UNIFESP/EPM), SP (Brazil). Dept. de Diagnostico por Imagem; Hilario, Maria Odete Esteves [Universidade Federal de Sao Paulo (UNIFESP/EPM), SP (Brazil). Alergia, Imunologia e Reumatologia]. E-mail: odetehilario@terra.com.br

    2004-08-01

    Lipoma arborescens is an intraarticular lesion of unknown etiology, consisting of a chronic villous fat proliferation of the synovial membrane. The disease has occasionally been associated with diabetes mellitus, degenerative diseases, juvenile rheumatoid arthritis and also rheumatoid arthritis. The diagnosis relies on magnetic resonance imaging evaluation and synovial biopsy. We report a case of a 8-year-old girl with a two year history of bilateral swelling of the knees and elbows. The patient had improvement of the arthritis after starting treatment with conventional drugs. (author)

  6. Bilateral lipoma arborescens associated with early osteoarthritis

    Energy Technology Data Exchange (ETDEWEB)

    Al-Ismail, Khalid; Torreggiani, William C.; Keogh, Ciaran; Munk, Peter L. [Department of Radiology, Vancouver General Hospital, 855 West 12th Avenue, Vancouver, BC, Canada V5Z 1M9 (Canada); Al-Sheikh, Fahad [Department of Radiology, Riyadh Military Hospital (Saudi Arabia)

    2002-11-01

    Lipoma arborescens is a rare disease that has generally been considered to be unilateral. We report a case of bilateral disease in a patient with associated marked premature osteoarthritis of the knees. We postulate a possible association between these two conditions and explain a possible underlying mechanism. We suggest that lipoma arborescens be considered as a rare underlying cause of young patients with bilateral premature osteoarthritis, and recommend MRI as the definitive imaging modality. (orig.)

  7. Method for detecting and identifying peronospora arborescens

    OpenAIRE

    Muñoz Ledesma, Francisco Javier; Jiménez Díaz, Rafael Manuel; Landa del Castillo, Blanca; Montes Borrego, Miguel

    2008-01-01

    The method for detecting and identifying Peronospora arborescens is based on amplification of specific regions of said pathogen. To do this, a number of oligonucleotide primers specific for P. arborescens were designed, by means of enzymatic amplification reaction, for identifying and detecting said pathogen. This method is useful in agriculture and provides an early diagnosis of the disease (mildew) during asymptomatic states of plants, which facilitates efficient control thereof, and sanita...

  8. A biochemical and cellular approach to explore the antiproliferative and prodifferentiative activity of Aloe arborescens leaf extract.

    Science.gov (United States)

    Di Luccia, Blanda; Manzo, Nicola; Vivo, Maria; Galano, Eugenio; Amoresano, Angela; Crescenzi, Elvira; Pollice, Alessandra; Tudisco, Raffaella; Infascelli, Federico; Calabrò, Viola

    2013-12-01

    Aloe arborescens Miller, belonging to the Aloe genus (Liliaceae family), is one of the main varieties of Aloe used worldwide. Although less characterized than the commonest Aloe vera, Aloe arborescens is known to be richer in beneficial phytotherapeutic, anticancer, and radio-protective properties. It is commonly used as a pharmaceutical ingredient for its effect in burn treatment and ability to increase skin wound healing properties. However, very few studies have addressed the biological effects of Aloe at molecular level. The aim of the research is to provide evidences for the antiproliferative properties of Aloe arborescens crude leaf extract using an integrated proteomic and cellular biological approach. We analysed the composition of an Aloe arborescens leaf extract by gas chromatography-mass spectrometry analysis. We found it rich in Aloe-emodin, a hydroxylanthraquinone with known antitumoral activity and in several compounds with anti-oxidant properties. Accordingly, we show that the Aloe extract has antiproliferative effects on several human transformed cell lines and exhibits prodifferentiative effects on both primary and immortalized human keratinocyte. Proteomic analysis of whole cell extracts revealed the presence of proteins with a strong antiproliferative and antimicrobial activity specifically induced in human keratinocytes by Aloe treatment supporting its application as a therapeutical agent. PMID:23418125

  9. Bilateral lipoma arborescens of the subdeltoid bursa

    International Nuclear Information System (INIS)

    Lipoma arborescens is a rare cause of chronic monoarticular arthritis. It is most commonly seen in the knees, but only a few cases involving other joints, especially the subdeltoid bursa, have been described. To our knowledge, this is the first reported case of lipoma arborescens involving bilateral subdeltoid bursae. Although it is associated with joint effusion, synovial cysts and erosions, the presence of reactive bone formation has not been reported. Magnetic resonance imaging is a very effective method for the diagnosis of this rare condition because of its ability to do tissue characterization

  10. Bilateral lipoma arborescens of the bicipitoradial bursa

    International Nuclear Information System (INIS)

    A 37-year-old military mechanic presented to our institution with a chronic history of a slowly enlarging left elbow antecubital fossa mass. There was no history of other chronic illness or trauma. Magnetic resonance imaging (MRI) and excisional biopsy revealed fatty villi and synovial inflammation within the left bicipitoradial bursa, consistent with lipoma arborescens. Four years later the patient presented with a 6-month history of swelling at the antecubital fossa of the opposite elbow. Diagnostic computed tomography and MRI examinations were performed. The surgical and pathologic findings confirmed the imaging diagnosis of lipoma arborescens at the right bicipitoradial bursa. (orig.)

  11. Isolation of Astilbin from Leaves of Cratoxylum Arborescens

    International Nuclear Information System (INIS)

    Phytochemicals studies was conducted on the leaves of Cratoxylum arborescens that has been collected from Post Brooke, Gua Musang, Kelantan, Malaysia. Traditionally, latex of the stem bark of C. arborescens is being used for the treatment of wound. Extraction of leaves of C. arborescens using organic solvents followed by purification using standard procedure of purification yielded known compound, astilbin. This compound was identified by NMR spectral data using various 2D-techniques and comparison with the literature data. Reports showed that this compound has a unique immunosuppressive activity, a selective inhibition against activated T lymphocytes. This characteristic of astilbin is beneficial for the treatment of human immune diseases. (author)

  12. Synovial lipomatosis arborescens of the peroneal tendon sheath

    Energy Technology Data Exchange (ETDEWEB)

    Vinson, Emily N.; Martinez, Salutario [Duke University Medical Center, Department of Radiology, Durham, NC (United States); Dodd, Leslie G. [Duke University Medical Center, Department of Pathology, Durham, NC (United States); Merian, Marc [Duke University Medical Center, Division of Orthopaedic Surgery, Durham, NC (United States)

    2008-10-15

    The term ''lipoma arborescens'' has been used to describe the diffuse infiltration of fat within hypertrophic synovial villi, a condition which has been most frequently described in the knee. We advocate the term ''synovial lipomatosis arborescens'' for this process and present what is, to our knowledge, the first reported case of this disorder isolated to the peroneal tendon sheath, with imaging, intraoperative, and histological correlation. (orig.)

  13. MR imaging of lipoma arborescens and the associated lesions

    Energy Technology Data Exchange (ETDEWEB)

    Vilanova, J.C.; Barcelo, J.; Villalon, M. [Magnetic Resonance Unit, Ressonancia Girona, Clinica Girona (Spain); Aldoma, J.; Delgado, E. [Centre Diagnostic Pedralbes, Barcelona (Spain); Zapater, I. [Dept. of Radiology, Hospital de Palamos, Palamos, Girona (Spain)

    2003-09-01

    Objective: To describe the typical features of lipoma arborescens on MR imaging with pathologic correlation and to evaluate the associated lesions within the joints. Design and patients: The MR imaging findings of 32 patients with the diagnosis of lipoma arborescens of the knee (n=32) and shoulder (n=1) were reviewed. The diagnosis of lipoma arborescens was confirmed by the histologic findings in 12 cases and the other 21 cases were diagnosed by the characteristic MR imaging features. One patient had bilateral lipoma arborescens of the knee joint. Results: MR imaging showed a typical pattern of villous lipomatous proliferation of the synovium in all cases, as a diffuse pattern in 79% (26/33) of cases and as a dominant mass-like lesion in 21% (7/33) of cases. The associated MR pathology in the knee was (n=32): joint effusion (100%), degenerative changes (87%), meniscal tear (72%), synovial cysts (38%), bone erosions (25%), chondromatosis (13%), patellar subluxation (6%) and discoid meniscus (3%). In all cases except two there was associated pathology of the knee. MR imaging showed an associated rotator cuff tear in the lipoma arborescens of the shoulder. Conclusion: The characteristic MR features of lipoma arborescens allows an accurate diagnosis of this rare lesion, which is almost always associated with other chronic pathology of the joint in the elderly. (orig.)

  14. Tenosynovial lipoma arborescens of the ankle in a child

    Energy Technology Data Exchange (ETDEWEB)

    Huang, Guo-Shu; Hsu, Yi-Chih; Kao, Hung-Wen; Chen, Cheng-Yu [National Defense Medical Center, Department of Radiology, Tri-Service General Hospital, Taipei (Taiwan); Lee, Herng-Sheng [National Defense Medical Center, Department of Pathology, Tri-Service General Hospital, Taipei (Taiwan); Lee, Hsieh-Hsing [National Defense Medical Center, Department of Orthopedic Surgery, Tri-Service General Hospital, Taipei (Taiwan)

    2006-04-15

    Lipoma arborescens is a rare entity of the synovium and frequently occurs in the joints. Lipoma arborescens involving the synovial sheaths of the tendons is exceedingly rare. We report a case of a 12-year-old girl with lipoma arborescence affecting the synovial sheaths of the peroneal, posterior tibialis, and flexor tendons. Identification of the typical features of fat tissues in the proliferative synovium on MRI may help in making a correct diagnosis. The clinical presentation and MRI findings are described, and the entity is briefly reviewed. (orig.)

  15. A Systemic Review on Aloe arborescens Pharmacological Profile: Biological Activities and Pilot Clinical Trials.

    Science.gov (United States)

    Singab, Abdel-Naser B; El-Hefnawy, Hala M; Esmat, Ahmed; Gad, Haidy A; Nazeam, Jilan A

    2015-12-01

    Since ancient times, plants and herbal preparations have been used as medicine. Research carried out in the last few decades has verified several such claims. Aloe arborescens Miller, belonging to the Aloe genus (Family Asphodelaceae), is one of the main varieties of Aloe used worldwide. The popularity of the plant in traditional medicine for several ailments (antitumor, immunomodulatory, antiinflammatory, antiulcer, antimicrobial and antifungal activity) focused the investigator's interest on this plant. Most importantly, the reported studies have shown the plant effectiveness on various cancer types such as liver, colon, duodenal, skin, pancreatic, intestinal, lung and kidney types. These multiple biological actions make Aloe an important resource for developing new natural therapies. However, the biological activities of isolated compounds such as glycoprotein, polysaccharides, enzyme and phenolics were insufficient. Considering all these, this contribution provides a systematic review outlining the evidence on the biological efficacy of the plant including the pharmacology and the related mechanisms of action, with specific attention to the various safety precautions, and preclinical and clinical studies, indicating the future research prospects of this plant. PMID:26768148

  16. Lipoma arborescens of the knee: report of a case managed by arthroscopic synovectomy.

    Science.gov (United States)

    Franco, Michel; Puch, J M; Carayon, M J; Bortolotti, D; Albano, Laetitia; Lallemand, A

    2004-01-01

    We report a case of lipoma arborescens treated with an arthroscopic procedure. Lipoma arborescens is an uncommon pseudo-tumoral synovial lesion usually located in the suprapatellar pouch of the knee. This diagnosis should be considered, particularly in patients with chronic joint effusion. Magnetic resonance imaging confirms the lipomatous nature of the synovial proliferation. When limited to the anterior compartment of the knee, lipoma arborescens can be treated by arthroscopic synovectomy. PMID:14769527

  17. Millerism - an historical enigma?

    Directory of Open Access Journals (Sweden)

    Ingemar Lindén

    1975-01-01

    Full Text Available It is a wellknown fact in history that strong bias in the writers and a wishful thinking radically prevent the analysis of any event or religious activity. For this reason Catholic ecclesiastical writers of the old school distorted the role of Martin Luther and his movement; likewise the Radical Reformation fared badly in old handbooks, whether they were composed by Catholics or Lutherans. Again the same principle applies to many of the modern "sects" in America and in Europe. Millerism is an excellent case for illustrating this unfelicitious type of writing. The layman-evangelist William Miller (1782-1849 claimed that the world would never be converted; only the second coming of Christ could usher in the millennium. In order to obtain a better understanding of Millerism, the movement should be divided into three main periods, which differed in character. At first, Miller's own development needs to be ascertained. Though he lacked any thorough intellectual training and remained an autodidact, he nevertheless belonged to the wide range of middle class Yankees. To be sure, Miller lived not too far from the famous frontier in his youth, but despite preconceived ideas in some writers, Miller had his cultural roots in the built-up areas of a New England society. The second important stratum in his personality was the warm Baptist revivalism, which prevailed in his home. Deism and revivalism thus contended for the supremacy of his soul; admitting the later dominance of evangelical revivalism, reason and order continued to hold a place in his mental set-up.

  18. Recurrent Miller Fisher syndrome.

    Science.gov (United States)

    Madhavan, S; Geetha; Bhargavan, P V

    2004-07-01

    Miller Fisher syndrome (MFS) is a variant of Guillan Barre syndrome characterized by the triad of ophthalmoplegia, ataxia and areflexia. Recurrences are exceptional with Miller Fisher syndrome. We are reporting a case with two episodes of MFS within two years. Initially he presented with partial ophthalmoplegia, ataxia. Second episode was characterized by full-blown presentation characterized by ataxia, areflexia and ophthalmoplegia. CSF analysis was typical during both episodes. Nerve conduction velocity study was fairly within normal limits. MRI of brain was within normal limits. He responded to symptomatic measures initially, then to steroids in the second episode. We are reporting the case due to its rarity. PMID:15645989

  19. Lipoma Arborescens of The Knee: A Case Report

    Directory of Open Access Journals (Sweden)

    Mehmet Erdil

    2013-10-01

    Full Text Available       Lipoma Arborescens is a rare intra-articular tumor. Knee is the most commonly affected joint, whereas ankle, hip, shoulder and elbow may be involved. There are few case reports published in the literature. We report a case with lipoma arborescens in the knee joint to improve the medical knowledge about the pathology and management of this rare entitiy. 20-year-old Caucasian female patient admitted to outpatient clinic with complaints of swelling and pain in her right knee. There was swelling and local tenderness in the suprapatellar region. Magnetic resonance imaging (MRI findings include significant effusion in knee joint and suprapatellar compartment, remarkable suprapatellar mass was drawing attention at all sequences which have an isointense view with fat tissue. Tumor was resected totally, and the preoperative diagnosis of lipoma arborescens is confirmed after histopathological examination. This report notes the significance of both physical and histopathologic examination for the confirmation of such a rare intra-articular entity. When such lesions are suspected, MRI of the joint is necessary and total excision of the mass yields excellent outcome.

  20. Genetics Home Reference: Miller syndrome

    Science.gov (United States)

    Skip to main content Your Guide to Understanding Genetic Conditions Enable Javascript for addthis links to activate. ... Conditions Genes Chromosomes & mtDNA Resources Help Me Understand Genetics Home Health Conditions Miller syndrome Miller syndrome Enable ...

  1. Interview: Sarah Miller

    Directory of Open Access Journals (Sweden)

    Richelle E. Wescott

    2012-01-01

    Full Text Available While still an undergraduate, Sarah Miller served as the Architecture and Design Manager for Purdue’s INHome project, which constructed a self-sufficient solar home for the Department of Energy’s Solar Decathlon. Despite this being Purdue's first time participating in the international contest, the entry earned second place.

  2. Method for detecting, identifying and quantifying peronospora arborescens by real time quantitative PCR

    OpenAIRE

    Landa, Blanca B.; Jiménez-Díaz, Rafael M.; Montes Borrego, Miguel

    2009-01-01

    [ES] El método para la cuantificación de peronospora arborescens por PCR cuantitativa (qPCR) en una muestra biológica comprende extraer el ADN contenido en dicha muestra biológica y amplificarlo mediante qPCR. De aplicación en la cuantificación de P. arborescens

  3. SINDROME DE MILLER DIEKER.

    OpenAIRE

    María Corfio P.; Romina Romeo G.

    2007-01-01

    El síndrome de Miller Dieker es una patología genética pocofrecuente, descrita en 1963 para referirse al fenotipo específicoasociado a lisencefalia tipo I y anomalías craneofaciales. Suincidencia exacta se desconoce, pero la incidencia de todas laslisencefalias es alrededor de 1/100.000 recién nacidos (1). Seorigina por una delección o mutación en el cromosoma 17 p.13.3 específicamente el gen LIS1, responsable de un espectro deenfermedades que involucran la migración neuronal y que en sumáxim...

  4. MRI Findings of Synovial Lipoma Arborescens of the Hip: A Case Report

    Energy Technology Data Exchange (ETDEWEB)

    Park, Hee Jin; Park, Chan Sub; Kim, Mi Sung; Park, Noh Hyuck; Park, Jai Hyung; Yi, Sang Yeop [Myoungji Hospital, Kwandong University College of Medicine, Seoul (Korea, Republic of); Park, Sung Il [Shinchon Severance Hospital, Yonsei University School of Medicine, Seoul (Korea, Republic of)

    2010-12-15

    Lipoma arborescens is a rare intra-articular lesion consisting of villous lipomatous proliferation of the synovium that tends to occur in the knee joint, especially in the suprapatellar pouch. The lesion has been observed in other locations, including the glenohumeral joint, subdeltoid bursa, hip, and elbow. We report a case of a lipoma arborescens of a unilateral hip joint in a 34-year-old man. MRI and a whole body bone scan were performed. In addition, a surgical synovectomy was performed and microscopic examination of the tumor revealed multiple variable-sized villous masses composed of mature fat tissue and lined by synovial cells which confirmed the diagnosis of lipoma arborescens

  5. Lipoma arborescens of the glenohumeral joint causing bone erosion: MRI features with gadolinium enhancement

    Energy Technology Data Exchange (ETDEWEB)

    Chae, Eun Young; Chung, Hye Won; Shin, Myung Jin; Lee, Sang Hoon [Asan Medical Center, Department of Radiology, University of Ulsan College of Medicine, Seoul (Korea)

    2009-08-15

    Lipoma arborescens is a rare benign intra-articular lesion that principally affects the knee joint. We present a case of lipoma arborescens involving the glenohumeral joint and associated with prominent large bony erosions. The gadolinium diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging (MRI) features of this lesion are also described. The characteristic MRI findings permit precise preoperative diagnosis of this rare condition even if it occurs in an atypical location and there are confusing radiological findings. (orig.)

  6. Synovial and tenosynovial lipoma arborescens of the ankle in an adult: a case report

    Energy Technology Data Exchange (ETDEWEB)

    Babar, S.A.; Mitchell, A.W. [Hammersmith Hospital Trust, Imaging Department, London (United Kingdom); Sandison, A. [Charing Cross Hospital, Hammersmith Hospitals NHS Trust, Department of Histopathology, London (United Kingdom)

    2008-01-15

    Lipoma arborescens is a rare benign fat-containing synovial proliferative lesion that is typically known to affect the knee joint in adults. We present the first case of lipoma arborescens of the ankle joint in an adult patient with involvement of the intra-articluar synovium as well as the synovial sheath of the tendons around the ankle. The MRI features of this lesion in the adult ankle are described. (orig.)

  7. Antifungal and cytotoxic activity of withanolides from Acnistus arborescens.

    Science.gov (United States)

    Roumy, Vincent; Biabiany, Murielle; Hennebelle, Thierry; Aliouat, El Moukhtar; Pottier, Muriel; Joseph, Henry; Joha, Sami; Quesnel, Bruno; Alkhatib, Racha; Sahpaz, Sevser; Bailleul, François

    2010-07-23

    Three compounds were isolated from Acnistus arborescens, a tree commonly used in South and Central America in traditional medicine against several infectious diseases, some of which are caused by fungi. Bioassay-guided fractionation of a MeOH extract of leaves, based on its anti-Pneumocystis carinii activity, led to the isolation of compounds 1-3. Mono- and bidimensional NMR analyses enabled identification of two new withanolides, (20R,22R)-5beta,6beta-epoxy-4beta,12beta,20-trihydroxy-1-oxowith-2-en-24-enolide (1) and (20R,22R)-16beta-acetoxy-3beta,4beta;5beta,6beta-diepoxy-12beta,20-dihydroxy-1-oxowith-24-enolide (2), and withanolide D (3). Antifungal activity on 13 fungi responsible for human infections (five dermatophytes, one nondermatophyte mold, six yeasts, and Pneumocystis carinii) was examined. Cytotoxicity of these compounds was also evaluated in vitro. PMID:20590148

  8. Influence of environmental parameters on mycotoxin production by Alternaria arborescens.

    Science.gov (United States)

    Vaquera, Sandra; Patriarca, Andrea; Fernández Pinto, V

    2016-02-16

    Alternaria arborescens has been reported as a common fungal species invading tomatoes and is capable of producing several mycotoxins in infected plants, fruits and in agricultural commodities. Alternariol (AOH), alternariol monomethyl ether (AME), and tenuazonic acid (TeA) are some of the main Alternaria mycotoxins that can be found as contaminants of food. This species can produce these toxic metabolites together with AAL toxins (Alternaria alternata f. sp. lycopersicum toxins), which can act as inhibitors of sphingolipid biosynthesis. The objective of this study was to determine the effect of water activity (aw, 0.995, 0.975, 0.950) and temperature (6, 15, 20, 25 and 30 °C) on mycotoxin production by A. arborescens on a synthetic tomato medium. The optimum production of AOH and AME occurred at 0.975 aw after 40 days of incubation at 30 °C. The maximum TeA accumulation was observed at 0.975 aw and 25 °C and at 0.950 aw and 30 °C. AAL TA was produced in higher quantities at 0.995 aw and 30 °C. At 6 °C no quantifiable levels of AOH or AME were detected, but significant amounts of TeA were produced at 0.975 aw. In general, high aw levels and high temperatures were favorable for mycotoxin production. The greatest accumulation of all four toxins occurred at 0.975 aw and 30 °C. The results obtained here could be extrapolated to evaluate the risk of tomato fruits and tomato products contamination caused by these toxins. PMID:26708802

  9. SINDROME DE MILLER DIEKER.

    Directory of Open Access Journals (Sweden)

    María Corfio P.

    2007-12-01

    Full Text Available El síndrome de Miller Dieker es una patología genética pocofrecuente, descrita en 1963 para referirse al fenotipo específicoasociado a lisencefalia tipo I y anomalías craneofaciales. Suincidencia exacta se desconoce, pero la incidencia de todas laslisencefalias es alrededor de 1/100.000 recién nacidos (1. Seorigina por una delección o mutación en el cromosoma 17 p.13.3 específicamente el gen LIS1, responsable de un espectro deenfermedades que involucran la migración neuronal y que en sumáximo defecto genera esta patología (2. La delección se puededar en forma espontánea o secundaria a una traslocación crípticade los padres, existiendo en este último caso alto riesgo detransmisión (3.La anormalidad principal es el desarrollo incompleto del cerebrogenerado por un trastorno en la migración y proliferaciónneuronal, caracterizándose por agira y adelgazamiento cortical,asociado a hipoplasia del cuerpo calloso, cerebelo atrófico y calcificacionesen la línea media, que se manifiesta con un retardomental severo, hipotonía, trastorno de la deglución, epilepsiade difícil manejo y retardo en el crecimiento (4. Las malformacionescraneofaciales se caracterizan por microcefalia, estrechamientobitemporal, pliegues verticales en el centro de la frente alllorar, narinas evertidas, micrognatia y labio superior fino. Otrasanormalidades descritas son: criptorquidea, seno pilonidal, clinodactilia,surco transverso palmar y malformaciones genitourinariasque se relacionan con peor pronóstico (5. Evolucionancon un severo retardo mental y convulsiones que se traducen enuna mortalidad temprana a causa de infecciones pulmonares arepetición (1.El diagnóstico se basa en la sospecha clínica y se confirma a travésdel método Fluorescent in situ hybridization (FISH dirigidoa 17 p. 13.3, altamente específico y también útil para el diagnósticode familiares (6 y 7. Actualmente también se recomiendacomo screening en los casos de sospecha prenatal

  10. Efficiency of a Miller engine

    International Nuclear Information System (INIS)

    Using finite-time thermodynamics, the relations between thermal efficiency, compression and expansion ratios for an ideal naturally-aspirated (air-standard) Miller cycle have been derived. The effect of the temperature-dependent specific heat of the working fluid on the irreversible cycle performance is significant. The conclusions of this investigation are of importance when considering the designs of actual Miller-engines

  11. Artemisia arborescens L essential oil loaded beads: preparation and characterization.

    Science.gov (United States)

    Lai, Francesco; Loy, Giuseppe; Manconi, Maria; Manca, Maria Letizia; Fadda, Anna Maria

    2007-01-01

    The purpose of this work was to prepare sodium alginate beads as a device for the controlled release of essential oil for oral administration as an antiviral agent. Different formulations were prepared with sodium alginate as a natural polymer and calcium chloride or glutaraldehyde as a cross-linking agent. Loading capacities of between 86% and 100% were obtained in freshly prepared beads by changing exposure time to the cross-linking agent. Drying of the calcium alginate beads caused only a slight decrease in the loading efficiency. The surface morphology of the different bead formulations were studied using scanning electron microscopy (SEM). Stability studies over a 3-month period showed that glutaraldehyde reacted with some components of Artemisia arborescens L essential oil, changing its composition. Calcium alginate beads showed an in vitro controlled release of the essential oil for the investigated 24 hours, while the use of glutaraldehyde as a cross-linking agent was found not appropriate because of the interactions with azulene derivatives and the low degree of matrix cross-linkage. PMID:17915817

  12. Conducting Miller-Urey Experiments

    Science.gov (United States)

    Parker, Eric Thomas; Cleaves, Henderson James; Burton, Aaron S.; Glavin, Daniel P.; Dworkin, Jason; Zhou, Manshui; Bada, Jeffrey L.; Fernandez, Facundo M.

    2014-01-01

    In 1953, Stanley Miller reported the production of biomolecules from simple gaseous starting materials, using apparatus constructed to simulate the primordial Earth's atmosphere-ocean system. Miller introduced 200 ml of water, 100 mmHg of H2, 200mmHg of CH4, and 200mmHg of NH3 into the apparatus, then subjected this mixture, under reflux, to an electric discharge for a week, while the water was simultaneously heated. The purpose of this manuscript is to provide the reader with a general experimental protocol that can be used to conduct a Miller-Urey type spark discharge experiment, using a simplified 3 L reaction flask. Since the experiment involves exposing inflammable gases to a high voltage discharge, it is worth highlighting important steps that reduce the risk of explosion. The general procedures described in this work can be extrapolated to design and conduct a wide variety of electric discharge experiments simulating primitive planetary environments.

  13. Lipoma arborescens: caso raro de ruptura do manguito rotador associado à presença de lipoma arborescens na bursa subacromial-subdeltoidea e glenoumeral Lipoma arborescens: rare case of rotator cuff tear associated with the presence of lipoma arborescens in the subacromial-subdeltoid and glenohumeral bursa

    Directory of Open Access Journals (Sweden)

    Eduardo Benegas

    2012-01-01

    Full Text Available Lipoma arborescens é uma condição rara de moléstia intra-articular, usualmente monoarticular, caracterizada por extensa proliferação dos vilos sinoviais e hiperplasia da gordura subsinovial. O tecido sinovial é progressivamente substituído por células maduras de gordura na membrana sinovial. O presente trabalho é o relato de caso de uma condição rara de lipoma arborescens tanto intra-articular (glenoumeral como da bursa subacromial-subdeltoide além de ruptura do tendão do supraespinhoso. As apresentações clínicas, histológicas e radiográficas assim como o tratamento são discutidos no presente estudo. A apresentação do caso contempla também a avaliação radiográfica, ressonância magnética e exame patológico. Apesar do lipoma arborescens ser uma condição rara, tal hipótese deve ser considerada frente a um caso com hiperproliferação sinovial e lipossubstituição da sinovial.Lipoma arborescens is a rare intra-articular disease that is usually monoarticular and is characterized by extensive proliferation of the synovial villi and hyperplasia of the subsynovial fat. The synovial tissue is progressively replaced by mature fat cells in the synovial membrane. The present study reports a case of a rare condition of lipoma arborescens that was simultaneously intra-articular (glenohumeral joint and in the subacromial-subdeltoid bursa, in association with a torn supraspinatus tendon. The clinical, histological and radiographic presentations and treatment are discussed here. The description of this case includes radiographic and magnetic resonance evaluations and pathological examination. Although lipoma arborescens is a rare condition, it should be taken into consideration in cases presenting synovial hyperproliferation and synovial fat replacement.

  14. Conducting Miller-Urey Experiments

    OpenAIRE

    Parker, Eric T.; Cleaves, James H.; Aaron S. Burton; Glavin, Daniel P.; Jason P. Dworkin; Zhou, Manshui; Bada, Jeffrey L.; Fernández, Facundo M.

    2014-01-01

    In 1953, Stanley Miller reported the production of biomolecules from simple gaseous starting materials, using an apparatus constructed to simulate the primordial Earth's atmosphere-ocean system. Miller introduced 200 ml of water, 100 mmHg of H2, 200 mmHg of CH4, and 200 mmHg of NH3 into the apparatus, then subjected this mixture, under reflux, to an electric discharge for a week, while the water was simultaneously heated. The purpose of this manuscript is to provide the reader with a general ...

  15. Miller Fisher syndrome associated with Q fever.

    OpenAIRE

    Diaz Ortuño, A; Maeztu, C; Muñoz, J. A.; Reigadas, R; Rodriguez, T.; Valdés, M.

    1990-01-01

    A 51 year old woman with pneumonia developed Miller Fisher syndrome. Indirect immunofluorescence tests showed antibodies against Coxiella burnetti. Miller Fisher syndrome associated with Q fever has not been described previously.

  16. Implementing the Kustin-Miller complex construction

    CERN Document Server

    Boehm, Janko

    2011-01-01

    The Kustin-Miller complex construction, due to A. Kustin and M. Miller, can be applied to a pair of resolutions of Gorenstein rings with certain properties to obtain a new Gorenstein ring and a resolution of it. It gives a tool to construct and analyze Gorenstein rings of high codimension. We describe the Kustin-Miller complex and its implementation in the Macaulay2 package KustinMiller, and explain how it can be applied to explicit examples.

  17. Caracterización morfoanatómica comparativa entre Aloe vera (L. Burm. F., Aloe arborescens Mill., Aloe saponaria Haw. y Aloe ciliaris Haw. (Aloeaceae

    Directory of Open Access Journals (Sweden)

    Stella Maris Carpano

    2009-03-01

    Full Text Available Aloe vera (L. Burm. F. (= Aloe barbadensis Miller conhecida como "a planta da imortalidade" no antigo Egito é utilizada em fitoterapia como humectante, antibacteriana, antifúngica, antiviral e antioxidante. Com a finalidade de contribuir para identificação da droga vegetal, foram realizados estudos morfoanatômicos da folha. A utilização de plantas com características terapêuticas reconhecidas determina que, por analogia, popularmente sejam utilizadas com a mesma finalidade outras espécies do mesmo gênero. Isto é o que ocorre com três espécies de Aloe spp., que se cultivam ou crescem acidentalmente na Argentina: A. arborescens Mill., A. saponaria Haw. e A. ciliaris Haw. (Aloaceae. Estabeleceram-se os caracteres morfoanatômicos de diagnóstico por microscopia óptica e microscopia eletrônica de varredura (apresentam-se desenhos e fotomicrografias dos mesmos. Obtiveram-se valores numéricos dos elementos histológicos de diagnóstico: magnitudes lineares e proporcionais. Realizaram-se reações histoquímicas de identificação dos princípios ativos para sua localização "in situ".

  18. Bob miller's math for the GMAT

    CERN Document Server

    Miller, Bob

    2012-01-01

    Maximize Your GMAT Math Score with Bob Miller! REA's updated second edition of Bob Miller's Math for the GMAT is a must for anyone taking the GMAT. Bob Miller has taught math to thousands of students at all educational levels for 30 years. His proven teaching methods will help you master the math section of the GMAT and boost your score! Written in a lively and unique format, Bob Miller's Math for the GMAT prepares GMAT-takers with everything they need to know. Unlike some dull test preps that merely present the material, Bob actually teaches and explains math concepts and ideas. His no-no

  19. Antiherpevirus activity of Artemisia arborescens essential oil and inhibition of lateral diffusion in Vero cells

    OpenAIRE

    Casu Laura; Chisu Lorenza; Cottiglia Filippo; Sanna Adriana; Saddi Manuela; Bonsignore Leonardo; De Logu Alessandro

    2007-01-01

    Abstract Background New prophylactic and therapeutic tools are needed for the treatment of herpes simplex virus infections. Several essential oils have shown to possess antiviral activity in vitro against a wide spectrum of viruses. Aim The present study was assess to investigate the activities of the essential oil obtained from leaves of Artemisia arborescens against HSV-1 and HSV-2 Methods The cytotoxicity in Vero cells was evaluated by the MTT reduction method. The IC50 values were determi...

  20. Antiherpevirus activity of Artemisia arborescens essential oil and inhibition of lateral diffusion in Vero cells

    Directory of Open Access Journals (Sweden)

    Casu Laura

    2007-09-01

    Full Text Available Abstract Background New prophylactic and therapeutic tools are needed for the treatment of herpes simplex virus infections. Several essential oils have shown to possess antiviral activity in vitro against a wide spectrum of viruses. Aim The present study was assess to investigate the activities of the essential oil obtained from leaves of Artemisia arborescens against HSV-1 and HSV-2 Methods The cytotoxicity in Vero cells was evaluated by the MTT reduction method. The IC50 values were determined by plaque reduction assay. In order to characterize the mechanism of action, yield reduction assay, inhibition of plaque development assay, attachment assay, penetration assay and post-attachment virus neutralization assay were also performed. Results The IC50 values, determined by plaque reduction assay, were 2.4 and 4.1 μg/ml for HSV-1 and HSV-2, respectively, while the cytotoxicity assay against Vero cells, as determined by the MTT reduction method, showed a CC50 value of 132 μg/ml, indicating a CC50/IC50 ratio of 55 for HSV-1 and 32.2 for HSV-2. The antiviral activity of A. arborescens essential oil is principally due to direct virucidal effects. A poor activity determined by yield reduction assay was observed against HSV-1 at higher concentrations when added to cultures of infected cells. No inhibition was observed by attachment assay, penetration assay and post-attachment virus neutralization assay. Furthermore, inhibition of plaque development assay showed that A. arborescens essential oil inhibits the lateral diffusion of both HSV-1 and HSV-2. Conclusion This study demonstrates the antiviral activity of the essential oil in toto obtained from A. arborescens against HSV-1 and HSV-2. The mode of action of the essential oil as antiherpesvirus agent seems to be particularly interesting in consideration of its ability to inactivate the virus and to inhibit the cell-to-cell virus diffusion.

  1. Protective effects of Artemisia arborescens essential oil on oestroprogestative treatment induced hepatotoxicity

    OpenAIRE

    Dhibi, Sabah; Ettaya, Amani; Elfeki, Abdelfettah; Hfaiedh, Najla

    2015-01-01

    BACKGROUND Currently, natural products have been shown to exhibit interesting biological and pharmacological activities and are used as chemotherapeutic agents. The purpose of this study, conducted on Wistar rats, was to evaluate the beneficial effects of Artemisia arborescens oil on oestroprogestative treatment induced damage on liver. MATERIALS/METHODS A total of 36 Wistar rats were divided into 4 groups; a control group (n = 9), a group of rats who received oestroprogestative treatment by ...

  2. Genome sequence of a novel victorivirus identified in the phytopathogenic fungus Alternaria arborescens.

    Science.gov (United States)

    Komatsu, Ken; Katayama, Yukie; Omatsu, Tsutomu; Mizutani, Tetsuya; Fukuhara, Toshiyuki; Kodama, Motoichiro; Arie, Tsutomu; Teraoka, Tohru; Moriyama, Hiromitsu

    2016-06-01

    Strains of the phytopathogenic fungus Alternaria spp. have been found to contain a variety of double-stranded RNA (dsRNA) elements indicative of mycovirus infection. Here, we report the molecular characterization of a novel dsRNA mycovirus, Alternaria arborescens victorivirus 1 (AaVV1), from A. arborescens, the tomato pathotype of A. alternata. Using next-generation sequencing of dsRNA purified from an A. arborescens strain from the United States of America, we found that the AaVV1 genome is 5203 bp in length and contains two open reading frames (ORF1 and 2) that overlap at the tetranucleotide AUGA. Proteins encoded by ORF1 and ORF2 showed significant similarities to the coat protein (CP) and the RNA-dependent RNA polymerase (RdRp), respectively, of dsRNA mycoviruses of the genus Victorivirus. Pairwise comparisons and phylogenetic analysis of the deduced amino acid sequences of both CP and RdRp indicated that AaVV1 is a member of a distinct species of the genus Victorivirus in the family Totiviridae. PMID:26923927

  3. J. Hillis Miller's Virtual Reality of Reading

    Science.gov (United States)

    Fosso, Kurt; Harp, Jerry

    2012-01-01

    We set out to investigate Miller's curious assertion--curious for a deconstructionist committed to a critique of the old metaphysics of presence--that literary works preexist their being written down. We find a basis for this sense of the preexistence of the literary work in Miller's insights about the performative dynamics of reading and writing.…

  4. Phylogenetic Analysis of Downy Mildew Pathogens of Opium Poppy and PCR-Based In Planta and Seed Detection of Peronospora arborescens.

    Science.gov (United States)

    Landa, Blanca B; Montes-Borrego, Miguel; Muñoz-Ledesma, Francisco J; Jiménez-Díaz, Rafael M

    2007-11-01

    ABSTRACT Severe downy mildew diseases of opium poppy (Papaver somniferum) can be caused by Peronospora arborescens and P. cristata, but differentiating between the two pathogens is difficult because they share morphological features and a similar host range. In Spain, where severe epidemics of downy mildew of opium poppy have occurred recently, the pathogen was identified as P. arborescens on the basis of morphological traits. In this current study, sequence homology and phylogenetic analyses of the internal transcribed spacer regions (ITS) of the ribosomal DNA (rDNA) were carried out with DNA from P. arborescens and P. cristata from diverse geographic origins, which suggested that only P. arborescens occurs in cultivated Papaver somniferum in Spain. Moreover, analyses of the rDNA ITS region from 27 samples of downy-mildew-affected tissues from all opium-poppy-growing regions in Spain showed that genetic diversity exists within P. arborescens populations in Spain and that these are phylogenetically distinct from P. cristata. P. cristata instead shares a more recent, common ancestor with a range of Peronospora species that includes those found on host plants that are not members of the Papaveraceae. Species-specific primers and a PCR assay protocol were developed that differentiated P. arborescens and P. cristata and proved useful for the detection of P. arborescens in symptomatic and asymptomatic opium poppy plant parts. Use of these primers demonstrated that P. arborescens can be transmitted in seeds and that commercial seed stocks collected from crops with high incidence of the disease were frequently infected. Field experiments conducted in microplots free from P. arborescens using seed stocks harvested from infected capsules further demonstrated that transmission from seedborne P. arborescens to opium poppy plants can occur. Therefore, the specific-PCR detection protocol developed in this study can be of use for epidemiological studies and diagnosing the

  5. Cytotoxic derivatives of withanolides isolated from the leaves of Acnistus arborescens; Derivados citotoxicos de vitanolidos isolados das folhas de Acnistus arborescens

    Energy Technology Data Exchange (ETDEWEB)

    Minguzzi, Sandro, E-mail: sming@uems.b [Universidade Estadual de Mato Grosso do Sul, Navirai, MS (Brazil). Curso de Quimica; Barata, Lauro E.S. [Universidade Estadual de Campinas (IQ/UNICAMP), SP (Brazil). Inst. de Quimica; Cordell, Geoffrey A. [Natural Products Inc., Evanston, IL (United States)

    2011-07-01

    In view of anticancer activity of 7 beta-acetoxywithanolide D (2) and 7beta-16beta-diacetoxywithonide D (3), isolated from the leaves of Acnistus arborescens (Solanaceae), five withanolide derivatives were obtained and their structures were determined by NMR, MS and IV data analysis. The in vitro anticancer activity of these derivatives was evaluated in a panel of cancer cell lines: human breast (BC-1), human lung (Lu1), human colon (Col2) and human oral epidermoid carcinoma (KB). Compounds 2a (acetylation of 2), 3b (oxidation of 3) and 2c (hydrogenation of 2) exhibited the highest anticancer activity against human lung cancer cells, with ED{sub 50} values of 0.19, 0.25 and 0.63 mug/mL, respectively. (author)

  6. Genetics Home Reference: Miller-Dieker syndrome

    Science.gov (United States)

    ... allows the abdominal organs to protrude through the navel. People with Miller-Dieker syndrome may also have ... Disorders and Stroke: Seizures and Epilepsy: Hope Through Research Educational Resources (4 links) Cleveland Clinic: Lissencephaly Disease ...

  7. Qualidade de cortes congelados de tambaqui cultivado

    Directory of Open Access Journals (Sweden)

    Mônica Maciel Cartonilho

    2011-04-01

    Full Text Available O objetivo deste trabalho foi determinar a composição centesimal, o rendimento, a influência do tempo de congelamento sobre a qualidade e a relação tipo de corte por vida útil, dos cortes de costela, lombinho e posta de tambaqui (Colossoma macropomum cultivado, durante 180 dias de estocagem. As amostras foram acondicionadas em embalagens de polietileno e congeladas a -25ºC. Foram realizadas avaliações sensoriais e análises físicoquímicas e microbiológicas dos cortes. O pH e os teores de nitrogênio das bases voláteis totais e de substâncias reativas ao ácido tiobarbitúrico, bem como os resultados das análises microbiológicas, foram bons índices do frescor ao longo do tempo de estocagem. O corte de costela foi mais suscetível à oxidação do que os demais; no entanto, os cortes mantiveram-se adequados para o consumo durante todo o experimento, em condições de manipulação correta e com o uso de boas práticas de higiene, entre a colheita e o armazenamento.

  8. Alternaria arborescens infection in a healthy individual and literature review of cutaneous alternariosis.

    Science.gov (United States)

    Hu, Wenying; Ran, Yuping; Zhuang, Kaiwen; Lama, Jebina; Zhang, Chaoliang

    2015-02-01

    A 28-year-old man presented at our clinic with 1-month history of an ulcer covered with crust on his left anterior tibia. Based on the morphological features and molecular identification, the patient was diagnosed as cutaneous alternariosis caused by Alternaria arborescens. He was successfully cured by oral itraconazole and topical use of 0.25% liposomal amphotericin B. A review of published studies revealed 29 cases of cutaneous alternariosis. Most cases (90%) occurred in immunosuppressed patients; itraconazole (59%) and voriconazole (24%) are the most effective treatments of choices. PMID:25370461

  9. Chemical composition of the essentialoil of the artemisia arborescens L. growing wild in Lebanon

    International Nuclear Information System (INIS)

    The essential oil obtained by hydrodistillation from air dried aerial parts of Artemisia arborescens L. from Lebanon was analyzed by GC/MS. Forty three compounds representing 95.33% of the oil sample were identified. The major component wasβ -thujone (68.5%), followed by chamazulene (12.3%), and some lesser amounts of terpinen-4-ol (1.8%), myrcene (1.3%),α -thujone (1.2%), linalool (1%), cis-thuyanol-4-ol (1%), carvacrol (0.9%), β -cubebene (0.8%) and camphor (0.8%).

  10. Método para la detección, identificación y cuantificación de Peronospora arborescens por PCR cuantitativa en tiempo real

    OpenAIRE

    Jiménez-Díaz, Rafael M.; Muñoz Ledesma, Francisco Javier; Montes Borrego, Miguel; Landa, Blanca B.

    2009-01-01

    Método para la detección, identificación y cuantificación de Peronospora arborescens por PCR cuantitativa en tiempo real. El método para la cuantificación de Peronospora arborescens por PCR cuantitativa (qPCR) en una muestra biológica, comprende extraer el ADN contenido en dicha muestra biológica y amplificarlo mediante qPCR. De aplicación en la cuantificación de P. arborescens.

  11. Artemisia arborescens Essential Oil Composition, Enantiomeric Distribution, and Antimicrobial Activity from Different Wild Populations from the Mediterranean Area.

    Science.gov (United States)

    Said, Mohammed El-Amin; Militello, Marcello; Saia, Sergio; Settanni, Luca; Aleo, Aurora; Mammina, Caterina; Bombarda, Isabelle; Vanloot, Pierre; Roussel, Christian; Dupuy, Nathalie

    2016-08-01

    Aerial parts of Artemisia arborescens were collected from different sites of the Mediterranean area (southwestern Algeria and southern Italy) and the chemical composition of their essential oil (EO) extracted by hydrodistillation was studied by both gas chromatography (GC) equipped with an enantioselective capillary column and GC/mass spectrometry (GC/MS). The EOs obtained were tested against several Listeria monocytogenes strains. Using GC and GC/MS, 41 compounds were identified, accounting for 96.0 - 98.8% of the total EO. All EOs showed a similar terpene profile, which was rich in chamazulene, β-thujone, and camphor. However, the concentration of such compounds varied among the EOs. A. arborescens EO inhibited up to 83.3% of the L. monocytogenes strains, but the inhibitory spectrum varied among the EOs, with those from Algeria showing a higher inhibition degree than the Italian EOs. Such effect likely depended on the ketone (β-thujone + camphor) content of the EO. The differences in the EO composition support the hypothesis that A. arborescens has at least two different chemotypes: a β-thujone and a chamazulene type. The EO inhibitory spectrum indicates the A. arborescens EO as a valuable option in the control of the food-borne pathogens. PMID:27447740

  12. Antifungal activity evaluation of Aloe arborescens dry extract against trichosporon genus yeasts

    Directory of Open Access Journals (Sweden)

    João Ricardo Bueno de Morais Borba

    2014-10-01

    Full Text Available The objective of this study was to investigate the antifungal activity of Aloe arborescens dry extract against Trichosporon genus yeast species. Extraction was carried out by means of a longitudinal incision in fresh leaves, which were collected on a vat, and the total volume was frozen and subsequently lyophilized. Then, 40 mg of the dry extract was dissolved in DMSO by gentle inversion in order to obtain a solution whose concentration was 4000 µg mL-1. This solution became limpid and slightly yellowish because the pigment of the latex was attenuated. It was performed serial dilutions from 2,000 to 15.625 µg mL-1 with RPMI-1640 broth. There was already no pigment in the first dilution of 2000 μg mL-1. It was analyzed fifteen strains of Trichosporon spp., and Candida albicans ATCC 10231 was used as control strain. We carried out the reading of microplates in the ELISA reader device at a wavelength of 530 nm, after incubation for 24 and 48 hours, and it was determinated the Minimum Inhibitory Concentration (MIC. The MIC50 value obtained for all Trichosporon species and for C. albicans was 500 µg mL-1. As a result, we concluded that Aloe arborescens dry extract has antifungal activity against Trichosporon yeasts.

  13. Liposomal incorporation of Artemisia arborescens L. essential oil and in vitro antiviral activity.

    Science.gov (United States)

    Sinico, Chiara; De Logu, Alessandro; Lai, Francesco; Valenti, Donatella; Manconi, Maria; Loy, Giuseppe; Bonsignore, Leonardo; Fadda, Anna Maria

    2005-01-01

    The effect of liposomal inclusion on the in vitro antiherpetic activity of Artemisia arborescens L. essential oil was investigated. In order to study the influence of vesicle structure and composition on the antiviral activity of the vesicle-incorporated oil, multilamellar (MLV) and unilamellar (SUV) positively charged liposomes were prepared by the film method and sonication. Liposomes were obtained from hydrogenated (P90H) and non-hydrogenated (P90) soy phosphatidylcholine. Formulations were examined for their stability for over one year, monitoring the oil leakage from vesicles and the average size distribution. The antiviral activity was studied against Herpes simplex virus type 1 (HSV-1) by a quantitative tetrazolium-based colorimetric method. Results showed that Artemisia essential oil can be incorporated in good amounts in the prepared vesicular dispersions. Stability studies pointed out that vesicle dispersions were very stable for at least six months and neither oil leakage nor vesicle size alteration occurred during this period. After one year of storage oil retention was still good, but vesicle fusion was present. Antiviral assays demonstrated that the liposomal incorporation of A. arborescens essential oil enhanced its in vitro antiherpetic activity especially when vesicles were made with P90H. On the contrary, no significant difference in antiviral activity was observed between the free and SUV-incorporated oil. PMID:15567314

  14. α -Mangostin from Cratoxylum arborescens (Vahl) Blume Demonstrates Anti-Ulcerogenic Property: A Mechanistic Study.

    Science.gov (United States)

    Sidahmed, Heyam M A; Abdelwahab, Siddig Ibrahim; Mohan, Syam; Abdulla, Mahmood Ameen; Mohamed Elhassan Taha, Manal; Hashim, Najihah Mohd; Hadi, A Hamid A; Vadivelu, Jamunarani; Loke Fai, Mun; Rahmani, Mawardi; Yahayu, Maizatulakmal

    2013-01-01

    Cratoxylum arborescens (Vahl) Blume is an Asian herbal medicine with versatile ethnobiological properties including treatment of gastric ulcer. This study evaluated the antiulcerogenic mechanism(s) of α -mangostin (AM) in a rat model of ulcer. AM is a prenylated xanthone derived through biologically guided fractionation of C. arborescens. Rats were orally pretreated with AM and subsequently exposed to acute gastric lesions induced by ethanol. Following treatment, ulcer index, gastric juice acidity, mucus content, histological and immunohistochemical analyses, glutathione (GSH), malondialdehyde (MDA), nitric oxide (NO), and nonprotein sulfhydryl groups (NP-SH) were evaluated. The anti-Helicobacter pylori, cyclooxygenase-2 (COX-2) inhibitory effect, and antioxidant activity of AM were also investigated in vitro. AM (10 and 30 mg/kg) inhibited significantly (P < 0.05) ethanol-induced gastric lesions by 66.04% and 74.39 %, respectively. The compound induces the expression of Hsp70, restores GSH levels, decreases lipid peroxidation, and inhibits COX-2 activity. The minimum inhibitory concentration (MIC) of AM showed an effective in vitro anti-H. pylori activity. The efficacy of the AM was accomplished safely without presenting any toxicological parameters. The results of the present study indicate that the antioxidant properties and the potent anti-H. pylori, in addition to activation of Hsp70 protein, may contribute to the gastroprotective activity of α -mangostin. PMID:23634169

  15. α-Mangostin from Cratoxylum arborescens (Vahl Blume Demonstrates Anti-Ulcerogenic Property: A Mechanistic Study

    Directory of Open Access Journals (Sweden)

    Heyam M. A. Sidahmed

    2013-01-01

    Full Text Available Cratoxylum arborescens (Vahl Blume is an Asian herbal medicine with versatile ethnobiological properties including treatment of gastric ulcer. This study evaluated the antiulcerogenic mechanism(s of α-mangostin (AM in a rat model of ulcer. AM is a prenylated xanthone derived through biologically guided fractionation of C. arborescens. Rats were orally pretreated with AM and subsequently exposed to acute gastric lesions induced by ethanol. Following treatment, ulcer index, gastric juice acidity, mucus content, histological and immunohistochemical analyses, glutathione (GSH, malondialdehyde (MDA, nitric oxide (NO, and nonprotein sulfhydryl groups (NP-SH were evaluated. The anti-Helicobacter pylori, cyclooxygenase-2 (COX-2 inhibitory effect, and antioxidant activity of AM were also investigated in vitro. AM (10 and 30 mg/kg inhibited significantly (P<0.05 ethanol-induced gastric lesions by 66.04% and 74.39 %, respectively. The compound induces the expression of Hsp70, restores GSH levels, decreases lipid peroxidation, and inhibits COX-2 activity. The minimum inhibitory concentration (MIC of AM showed an effective in vitro anti-H. pylori activity. The efficacy of the AM was accomplished safely without presenting any toxicological parameters. The results of the present study indicate that the antioxidant properties and the potent anti-H. pylori, in addition to activation of Hsp70 protein, may contribute to the gastroprotective activity of α-mangostin.

  16. Composition and antimicrobial activity of essential oils of Artemisia judaica, A. herba-alba and A. arborescens from Libya

    Directory of Open Access Journals (Sweden)

    Janaćković Peđa

    2015-01-01

    Full Text Available The essential oils obtained by hydrodistillation from the aerial parts of Artemisia judaica L., Artemisia herba-alba Asso. and Artemisia arborescens L. (cultivated from Libya, were analyzed by GC and GC-MS. The antimicrobial properties were determined using the broth microdilution method against eight bacterial species: Bacillus cereus (clinical isolate, Micrococcus flavus (ATCC10240, Listeria monocytogenes (NCTC7973, Staphylococcus aureus (ATCC6538, Escherichia coli (ATCC35210, Pseudomonas aeruginosa (ATCC27853, Salmonella typhimurium (ATCC13311, Enterobacter cloacae (human isolates and eight fungal species: Aspergillus niger (ATCC6275, A. ochraceus (ATCC12066, A. versicolor (ATCC11730, A. fumigatus (ATCC1022, Penicillium ochrochloron (ATCC9112, P. funiculosum (ATCC10509, Trichoderma viride (IAM5061 and Candida albicans (human isolate. The major constituents of A. arborescens oil were sesquiterpene hydrocarbons (47.4%. Oxygenated monoterpenes were the dominant constituents in the A. judaica and A. herba-alba oils (54.2% and 77.3%, respectively. Camphor (24.7% and chamazulene (20.9% were the major components in the essential oil of A. arborescens, chrysanthenone (20.8%, cis-chrysanthenyl acetate (17.6% and cis-thujone (13.6% dominated in the A. herba-alba oil, and the major constituents in the A. judaica oil were piperitone (30.21% and cis-chrysanthenol (9.1%. The best antimicrobial activity was obtained for A. judaica oil and the lowest effect was noticed in A. arborescens oil. The effect of the tested oils was higher against Gram (+ than Gram (- bacteria. All three oils showed the best antibacterial activity against Listeria monocytogenes and the lowest against Pseudomonas aeruginosa, Escherichia coli, Enterobacter cloacae, compared to streptomycin and ampicillin. All three oils showed better antifungal activities than ketoconazole, except A. arborescens oil against Aspergillus niger. [Projekat Ministarstv nauke Republike Srbije, br. 173029

  17. Miller's (2009) WACC model: An extension

    OpenAIRE

    Keef, Stephen P; Khaled, Mohammed S; Melvin L. Roush

    2011-01-01

    Miller (2009a) presents an analysis of the weighted average cost of capital WACC model. The paper attracts debate which uses a variety of repayment schedules to support the arguments raised. We present an extension of Miller's (2009a) WACC model in a world where interest is tax deductible and debt principal is paid at maturity. We also present the corresponding model for the required rate of return on levered equity which is a vital input to the WACC model. Since these models are unwieldy, we...

  18. The cultural conflict in Daisy Miller

    Institute of Scientific and Technical Information of China (English)

    岳娜

    2014-01-01

    This thesis, taking Daisy Miller as an example, concentrates on the cultural conflict between the new and old continents reflected in this work, presenting the conflict between two cultures, that is, American innocence and European sophistication from the perspective of settings.

  19. Derivados citotóxicos de vitanolidos isolados das folhas de Acnistus arborescens

    Directory of Open Access Journals (Sweden)

    Sandro Minguzzi

    2011-01-01

    Full Text Available In view of anticancer activity of 7 β-acetoxywithanolide D (2 and 7β-16α-diacetoxywithonide D (3, isolated from the leaves of Acnistus arborescens (Solanaceae, five withanolide derivatives were obtained and their structures were determined by NMR, MS and IV data analysis. The in vitro anticancer activity of these derivatives was evaluated in a panel of cancer cell lines: human breast (BC-1, human lung (Lu1, human colon (Col2 and human oral epidermoid carcinoma (KB. Compounds 2a (acetylation of 2, 3b (oxidation of 3 and 2c (hydrogenation of 2 exhibited the highest anticancer activity against human lung cancer cells, with ED50 values of 0.19, 0.25 and 0.63 μg/mL, respectively.

  20. Cytotoxic derivatives of withanolides isolated from the leaves of Acnistus arborescens

    International Nuclear Information System (INIS)

    In view of anticancer activity of 7 beta-acetoxywithanolide D (2) and 7beta-16beta-diacetoxywithonide D (3), isolated from the leaves of Acnistus arborescens (Solanaceae), five withanolide derivatives were obtained and their structures were determined by NMR, MS and IV data analysis. The in vitro anticancer activity of these derivatives was evaluated in a panel of cancer cell lines: human breast (BC-1), human lung (Lu1), human colon (Col2) and human oral epidermoid carcinoma (KB). Compounds 2a (acetylation of 2), 3b (oxidation of 3) and 2c (hydrogenation of 2) exhibited the highest anticancer activity against human lung cancer cells, with ED50 values of 0.19, 0.25 and 0.63 mug/mL, respectively. (author)

  1. ANTICARIES AND α-AMYLASE INHIBITORY ACTIVITY OF JASMINUM ARBORESCENS ROXB. (OLEACEAE LEAVES EXTRACT

    Directory of Open Access Journals (Sweden)

    Bhagath K

    2013-12-01

    Full Text Available The aim of the present study was to determine anti caries and α-amylase inhibitory activity of leaf extract of Jasminum arborescens Roxb. (Oleaceae. Anti caries activity was determined by Agar well diffusion assay against seven clinical isolates of Streptococcus mutans (Sm-01 to Sm-07 recovered from dental caries subjects. Enzyme inhibitory activity was tested against α-amylase by spectrophometric method using starch as substrate. The extract exhibited dose dependent inhibition against cariogenic isolates. Among seven isolates, isolate Sm-04 and Sm-06 were inhibited to higher and least extent respectively. The extract was found to cause inhibition of α-amylase activity in a dose dependent manner and its IC50 value was found to be 17.45 mg/ml. The inhibitory activity could be attributed to the presence of secondary metabolites. The plant may be a potential source for development of agents which are active against dental caries pathogens and for diabetes mellitus.

  2. James M. Decker, Indrek Manniste, eds. Henry Miller: New Perspectives.

    OpenAIRE

    Cowe, Jennifer

    2016-01-01

    Henry Miller continues to be a writer who causes much consternation amongst readers and critics alike. Often characterised as everything for a pornographer, misogynist, counter-cultural hero to sexual libertine, Miller has frequently been pigeonholed by critics to fit their agenda. This, along with changing sensibilities within literary criticism has led to a relegation of Miller to the minor leagues of research and academia. Thus, this edition of essays by many of today’s leading Miller scho...

  3. SLN as a topical delivery system for Artemisia arborescens essential oil: In vitro antiviral activity and skin permeation study

    OpenAIRE

    Lai, Francesco; Sinico, Chiara; De Logu, Alessandro; Zaru, Marco; Müller, Rainer H.; Fadda, Anna M.

    2007-01-01

    The effect of SLN incorporation on transdermal delivery and in vitro antiherpetic activity of Artemisia arborescens essential oil was investigated. Two different SLN formulations were prepared using the hot – pressure homogenization technique, Compritol 888 ATO as lipid, and Poloxamer 188 and Miranol Ultra C32 as surfactants. Formulations were examined for their stability for two years by monitoring average size distribution and zeta potential values. The antiviral activity of free and SLN in...

  4. Prebiotic Soup: Revisiting the Miller Experiment

    Science.gov (United States)

    Bada, Jeffrey L.; Lazcano, Antonio

    2003-01-01

    Isn't life wonderful? sang Alma Cogan and Les Howard in their almost forgotten 1953 hit. That same year, Stanley L. Miller raised the hopes of understanding the origin of life when on 15 May, Science published his paper on the synthesis of amino acids under conditions that simulated primitive Earth's atmosphere. Miller had applied an electric discharge to a mixture of CH4, NH3, H2O, and H2 - believed at the time to be the atmospheric composition of early Earth. Surprisingly, the products were not a random mixture of organic molecules. but rather a relatively small number of biochemically significant compounds such as amino acids, hydroxy acids, and urea. With the publication of these dramatic results, the modern era in the study of the origin of life began.

  5. Prebiotic Soup-Revisiting the Miller Experiment

    Science.gov (United States)

    Bada, Jeffrey L.; Lazcano, Antonio

    2003-01-01

    'Isn't life wonderful?' sang Alma Cogan and Les Howard in their almost forgotten 1953 hit. That same year, Stanley L. Miller raised the hopes of understanding the origin of life when on 15 May, Science published his paper on the synthesis of amino acids under conditions that simulated primitive Earth's atmosphere. Miller had applied an electric discharge to a mixture of CH4, NH3, H2O, and H2 - believed at the time to be the atmospheric composition of early Earth. Surprisingly, the products were not a random mixture of organic molecules, but rather a relatively small number of biochemically significant compounds such as amino acids, hydroxy acids, and urea. With the publication of these dramatic results, the modem era in the study of the origin of life began.

  6. Beyond Sectarianism?:On David Miller's Theory of Human Rights

    OpenAIRE

    Oberman, Kieran

    2013-01-01

    In his most recent book, National Responsibility and Global Justice, David Miller presents an account of human rights grounded on the idea of basic human needs. Miller argues that his account can overcome what he regards as a central problem for human rights theory: the need to provide a 'non-sectarian' justification for human rights, one that does not rely on reasons that people from non-liberal societies should find objectionable. The list of human rights that Miller's account generates is,...

  7. Recurrent Miller fisher syndrome : a case report.

    Directory of Open Access Journals (Sweden)

    Sitajayalakshmi S

    2002-07-01

    Full Text Available Miller fisher syndrome (MFS is a variant of Guillain-Barre syndrome characterized by the triad of ophthalmoplegia, ataxia and areflexia. Recurrences are exceptional with MFS. A case with two episodes of MFS within four years is reported. He presented with findings of ophthalmoplegia, ataxia, areflexia, and oropharyngeal weakness and mild distal sensory impairment during both episodes. Electrophysiological findings showed reduced compound muscle action potentials and sensory nerve action potentials with no evidence of conduction blocks. Nerve biopsy showed segmental demyelination. MRI of brain was normal. He responded well to immunoglobulins during both episodes suggesting that immunomodulating drugs have a role in the treatment of MFS.

  8. Phenolic profile of Cydonia oblonga Miller leaves

    OpenAIRE

    Andreia P. Oliveira; Pereira, J.A.; Andrade, P.B.; Valentão, P.; Seabra, R.M.; B.M. Silva

    2007-01-01

    Cydonia oblonga Miller leaves phenolic compounds were analyzed by reversed-phase HPLC/DAD and HPLC/UV. Qualitative and quantitative analysis of phenolics were carried out in a total of 36 samples of quince leaves from three different geographical origins of Northern (Bragança and Carrazeda de Ansiães) and Central Portugal (Covilhã) and three collection months (June, August, and October of 2006). These leaves presented a common phenolic profile composed by nine compounds: 3-O-, 4-O...

  9. Phenolic composition of Cydonia oblonga Miller leaf.

    OpenAIRE

    B.M. Silva; Oliveira, A.P.; Pereira, J.A.; Valentão, P.; Seabra, R.M.; Andrade, P.B.

    2008-01-01

    Phenolic profile of 36 Cydonia oblonga Miller leaf samples, from 3 different geographical origins of Portugal, harvested in 3 collection months, was determined by HPLC/DAD. Quince leaf presented a common profile composed by 9 constituents: 3-0-, 4-0- and 5-0-caffeoylquinic acids, 3,5-0-dicaffeoylquinic acid, quercetin-3-0 galactoside, quercetin-3-0-rutinoside, kaempferol-3-0-glycoside, kaempferol-3-0-g1ucoside and kaempferol-3-0-rutinoside. C. oblonga leaf total content varied from 4...

  10. The Cultural Conflict in Daisy Miller

    Institute of Scientific and Technical Information of China (English)

    刘丹

    2015-01-01

    Henry James is one of the greatest novelists and literary theoretician, who enjoys great reputation in English literary world, often referred to as the pioneer of modern English novels and an “international theme",that is, the transatlantic intercourse unauthorized ambassador of culture of American and European society most of his fictional works, he dealt with the culture. This thesis, taking Daisy Miller as an example, will mainly focus on the cultural conflict between two cultures, that is, American innocence and European sophistication.

  11. Miller-Urey Synthesis in The Nuclei of Galaxies

    Science.gov (United States)

    Wickramasinghe, N. C.; Hoyle, F.

    1999-10-01

    The most promising venues for the synthesis of prebiotic molecules by Miller-Urey type processes may be found near the centres of galaxies. Explosions of supermassive stars would produce the basic chemical elements necessary to make molecules in high-density mass flows that are then acted upon by ionizing radiation, thus simulating the conditions needed for Miller-Urey type processing.

  12. Unilateral external ophthalmoplegia in Miller Fisher syndrome: case report

    Directory of Open Access Journals (Sweden)

    Severn Philip

    2007-04-01

    Full Text Available Abstract Background A description of the diagnostic features of Miller Fisher syndrome. Case presentation The clinical presentation, investigation, and subsequent progress of our patient with clinical unilateral external ophthalmoplegia. Conclusion Our case demonstrates the presentation of clinical unilateral external ophthalmoplegia as part of the full triad of Miller Fisher syndrome.

  13. A child with Miller Fisher Syndrome

    OpenAIRE

    Gomes, D; F. LEITE; Andrade, N.; Vasconcelos, M.; Robalo, C; Fineza, I.

    2012-01-01

    Introdução: O síndrome de Miller Fisher, variante do síndrome de Guillain-Barré, é uma doença desmielinizante inflamatória aguda, que é rara em idade pediátrica. O seu diagnóstico é baseado na tríade oftalmoplegia, ataxia e arreflexia. Em cerca de metade dos casos está descrita uma intercorrência infecciosa precedendo os sintomas neurológicos em cinco a dez dias. Caso clínico: Os autores relatam o caso de uma criança de cinco anos de idade com disartria, ataxia e oftalmop...

  14. Three dosimetry models of lipoma arborescens treated by {sup 90}Y synovectomy

    Energy Technology Data Exchange (ETDEWEB)

    O’Doherty, Jim, E-mail: jim.odoherty@kcl.ac.uk [Department of Medical Physics-Nuclear Medicine, Royal Surrey County Hospital, Guildford GU2 7XX, United Kingdom and Division of Imaging Sciences, PET Imaging Centre at St. Thomas’ Hospital, King' s College London, London SE1 7EH (United Kingdom); Clauss, Ralf [Department of Nuclear Medicine, Royal Surrey County Hospital, Guildford GU2 7XX (United Kingdom); Scuffham, James [Department of Medical Physics-Nuclear Medicine, Royal Surrey County Hospital, Guildford GU2 7XX (United Kingdom); Khan, Aman [Department of Rheumatology, Royal Surrey County Hospital, Guildford GU2 7XX (United Kingdom); Petitguillaume, Alice; Desbrée, Aurélie [Service de Dosimétrie Interne, Institut de Radioprotection et de Sûreté Nucléaire, 92260 Fontenay-aux-Roses (France)

    2014-05-15

    Purpose: Lipoma arborescens (LA) is a benign intra-articular lipomatous proliferation of the synovial membrane. This extremely rare condition has previously been treated by intra-articular{sup 90}Y radiosynoviorthesis but dosimetry literature on this form of radionuclide therapy is nonexistent. The authors detail methodology for successful treatment of LA and provide for the first time estimates of radiation dosimetry. The authors also analyze the biodistribution of the radiopharmaceutical over the course of the patient's treatment through sequential imaging. Methods: A patient with bilateral LA underwent intracavity injection of{sup 90}Y citrate colloid to the right and left knee joint spaces (181 and 198 MBq, respectively). SPECT/CT datasets were acquired over 9 days to quantify the biodistribution and kinetics of the radiopharmaceutical. Radiation dosimetry was performed using the MIRD schema (through OLINDA software), a custom voxel-based method, and a direct Monte Carlo calculation (OEDIPE). Results: Follow-up MRI showed marked reduction in LA size in both knees. Mean absorbed doses to the LA were 21.2 ± 0.8 and 42.9 ± 2.3 Gy using OLINDA, 8.1 ± 0.3 and 16.7 ± 0.5 Gy using voxel based methodology, and 8.2 ± 0.3 and 15.7 ± 0.5 Gy for OEDIPE in the right and left LA, respectively. Distribution of the radiopharmaceutical within the joint space alters over the imaging period, with less than 1% of the remaining activity having moved posteriorly in the knee cavity. No uptake was detected outside of the joint space after assessment with whole-body scintigraphy. Conclusions: An activity of approximately 185 MBq successfully relieved clinical symptoms of LA. There was good correlation between direct Monte Carlo and voxel based techniques, but OLINDA was shown to overestimate the absorbed dose to the tumor. Accurate dosimetry may help select an activity more tailored to the specific size and location of the LA.

  15. Micromachining using a focused ion beam miller

    International Nuclear Information System (INIS)

    Full text: The focused ion beam (FIB) miller is becoming well established as a machine for the structural analysis of materials and for the rapid preparation of transmission electron microscope specimens. It has also been used for some time in the semiconducting materials industry for the analysis, repair and redesign of device materials. However, one emerging technique is the use of the FIB for micromachining. The FIB software can also be used to manufacture and machine components. This process can occur through converting software, typically in the form of bitmaps or TIF files, to proprietary 'stream' files. These files allow, often complex, patterns to be generated and milled into the specimen and thus the generation of micro-electromechanical systems. Frequently, this involves largely two-dimensional patterns and structures, however, more complex patterns and file types can be generated which allow, for example, device prototyping or the preparation of three-dimensional structures such as atom probe field ion microscope (APFIM) specimens. In this presentation the protocols for creating and using these files will be described together with examples of the patterns and its application to micromachining, device prototyping and APFIM specimens. Copyright (2002) Australian Society for Electron Microscopy Inc

  16. NOAA Ship Miller Freeman Underway Meteorological Data, Quality Controlled

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NOAA Ship Miller Freeman Underway Meteorological Data (delayed ~10 days for quality control) are from the Shipboard Automated Meteorological and Oceanographic...

  17. Arthur Miller Wins a Peace Prize: Teaching, Literature, and Therapy.

    Science.gov (United States)

    Kopald, Meredith

    1992-01-01

    Describes how a high school student was able to express powerful feelings and achieve some kind of reconciliation with his father through his therapeutic exploration of Arthur Miller's play "Death of a Salesman." (PRA)

  18. The numerical thermodynamic analysis of Otto-Miller Cycle (OMC)

    OpenAIRE

    Cakir Mehmet

    2016-01-01

    This paper presents a thermodynamic analysis for an irreversible Otto-Miller Cycle (OMC) by taking into consideration heat transfer effects and internal irreversibilities resulting from compression and expansion processes. In the analyses, the influences of the miller cycle ratio, combustion and heat loss constants and inlet temperature have been investigated relations with efficiency in dimensionless form. The dimensionless power output and power density a...

  19. Phenolic profile of Cydonia oblonga Miller leaves.

    Science.gov (United States)

    Oliveira, Andreia P; Pereira, José A; Andrade, Paula B; Valentão, Patrícia; Seabra, Rosa M; Silva, Branca M

    2007-09-19

    Cydonia oblonga Miller leaves phenolic compounds were analyzed by reversed-phase HPLC/DAD and HPLC/UV. Qualitative and quantitative analysis of phenolics were carried out in a total of 36 samples of quince leaves from three different geographical origins of Northern (Bragança and Carrazeda de Ansiães) and Central Portugal (Covilhã) and three collection months (June, August, and October of 2006). These leaves presented a common phenolic profile composed by nine compounds: 3- O-, 4- O- and 5- O-caffeoylquinic acids, 3,5- O-dicaffeoylquinic acid, quercetin-3- O-galactoside, quercetin-3- O-rutinoside, kaempferol-3- O-glycoside, kaempferol-3- O-glucoside, and kaempferol-3- O-rutinoside. 5- O-caffeoylquinic acid was the major phenolic compound (36.2%), followed by quercetin 3- O-rutinoside (21.1%). Quince leaves are characterized by higher relative contents of kaempferol derivatives than fruits (pulps, peels, and seeds), especially in what concerns kaempferol-3- O-rutinoside (12.5%). C. oblonga leaves total phenolic content was very high, varying from 4.9 to 16.5 g/kg dry matter (mean value of 10.3 g/kg dry matter), indicating that these leaves can be used as a good and cheap source of bioactive constituents. Significantly differences were observed in 3- O-caffeoylquinic and 3,5- O-dicaffeoylquinic acids contents, according to geographical provenance and harvesting month, suggesting a possible use of these compounds as geographical origin and/or maturity markers. PMID:17711340

  20. Malformaciones craneales en larvas y juveniles de peces cultivados

    Directory of Open Access Journals (Sweden)

    Wilfrido Argüello-Guevara

    2014-11-01

    Full Text Available Las malformaciones óseas en peces cultivados representan un gran problema en acuicultura, no sólo por las pérdidas económicas que puede generar el mantenimiento de peces que no serán utilizados, sino también por las complicaciones a nivel fisiológico y morfológico que sufren los peces a lo largo de su ciclo de vida. Estas malformaciones pueden tener inicio desde los primeros estados de desarrollo y estar asociadas a una degeneración de las estructuras óseas con la edad, o a factores genéticos, nutricionales, ambientales, de manejo o una interacción entre éstas, haciéndose difícil la determinación de un solo agente causal. La presente revisión resume la información existente sobre la tipología, momento de aparición y posibles factores causales asociados a las malformaciones esqueléticas con particular énfasis en las malformaciones a nivel craneal.

  1. Pairing Relationships Among Feldspathic Lunar Meteorites from Miller Range, Antarctica

    Science.gov (United States)

    Zeigler, Ryan A.; Korotev, R. L.; Jolliff, B. L.

    2012-01-01

    The Miller Range ice fields have been amongst the most prolific for lunar meteorites that ANSMET has searched [1-3]. Six different stones have been recovered during the 2005, 2007, and 2009 field seasons: MIL 05035 (142 g), MIL 07006 (1.4 g), MIL 090034 (196 g), MIL 090036 (245 g), MIL 090070 (137 g), and MIL 090075 (144 g). Of these, the five stones collected during the 2007 and 2009 seasons are feldspathic breccias. Previous work on the Miller Range feldspathic lunar meteorites (FLMs) has suggested that they are not all paired with each other [4-5]. Here we examine the pairing relationships among the Miller Range FLMs using petrography in concert with traceand major-element compositions.

  2. Análise sazonal do potencial antimicrobiano e teores de flavonoides e quinonas de extratos foliares de Aloe arborescens Mill., Xanthorrhoeaceae Seasonal analysis from the antimicrobial potency and flavonoid and quinone content from Aloe arborescens Mill., Xanthorrhoeaceae, leaf extracts

    Directory of Open Access Journals (Sweden)

    Fernando Leite Cardoso

    2010-03-01

    Full Text Available Este trabalho teve como objetivos avaliar o potencial antimicrobiano e os teores de flavonoides e quinonas de extratos foliares de Aloe arborescens Mill., Xanthorrhoeaceae, produzidos em diferentes épocas do ano. Extratos etanólicos e clorofórmicos foram preparados a partir de folhas, os bioensaios de atividade antimicrobiana foram desenvolvidos pelo método de macrodiluição em caldo, e dosagens de flavonoides e quinonas foram realizadas nos extratos. Todos os extratos apresentaram ação inibitória sobre os microrganismos testados. O extrato clorofórmico de inverno apresentou a menor CIM (128 µg/mL sobre B. subtilis. Os extratos clorofórmicos de inverno, primavera e verão apresentaram maior atividade antimicrobiana em relação ao extrato clorofórmico de outono. O extrato etanólico de inverno apresentou a menor CIM (256 µg/mL e a menor CMM (512 µg/mL sobre K. pneumoniae. Os extratos etanólicos de verão e outono mostraram baixa atividade antimicrobiana. Os teores de quinonas das folhas foram maiores nos períodos mais quentes de coleta (verão e outono, enquanto os teores de flavonoides foram semelhantes nos quatro períodos de coleta.This work has the objective of evaluate the antimicrobial potency and the content of flavonoids and quinones from the Aloe arborescens Mill., Xanthorrhoeaceae, leaf extracts produced in the four seasons of the year. Ethanol and chloroform extracts were prepared from the leaves, the bioassays from antimicrobial activity were developed by the macrodilution method in broth, and dosages of flavonoids and quinones were performed in the extracts. The winter chloroform extract showed the lowest CIM (128 µg/mL on B. subtilis. The ethanol extract showed the lowest CIM (256 µg/mL and the lowest CMM (512 µg/mL on K. pneumoniae. The summer and fall ethanol extracts showed low antimicrobial activity. The quinones extracts showed inhibitory activity on the tested microorganisms. The winter, spring and summer

  3. VALOR NUTRICIONAL DE PLEUROTUS DJAMOR CULTIVADO EM PALHA DE BANANEIRA

    Directory of Open Access Journals (Sweden)

    Jamile Rosa RAMPINELLI

    2010-11-01

    Full Text Available

    Cogumelos do gênero Pleurotus representam um alimento de custo baixo, com teor elevado de proteínas, aminoácidos essenciais, proporção elevada de ácidos graxos insaturados, diversas vitaminas e minerais, além de teores baixos de gorduras, ácidos nucléicos, açúcares e calorias. Assim, o objetivo deste trabalho foi avaliar o valor nutricional de basidiomas de Pleurotus djamor de 1o e 2o fluxo produtivo, cultivados em palha de bananeira, em termos de teores de carboidratos, proteínas, fi bras, gorduras, cinzas, vitaminas, fósforo e potássio. Os teores de carboidratos totais, proteína bruta, fi bra bruta e cinzas diminuíram do 1o para o 2o fl uxo produtivo de 32,7 para 27,4g/100g, de 20,5 para 19,8g/100g, de 22,4 para 12,7g/100g e de 7,4 para 6,3g/100g, respectivamente. Os valores de gordura bruta e umidade não variaram, permanecendo em torno de 1,1 e 90g/100g, respectivamente. Os teores de vitamina B1 foram superiores aos de vitamina B2, independentemente do fluxo produtivo, e foi encontrada maior quantidade de potássio do que de fósforo. Pleurotus djamor, de 1o fl uxo produtivo, pode ser considerado fonte de fósforo e potássio, além de apresentar baixo teor de açúcar e não conter gordura.

  4. New Insights into Prebiotic Chemistry from Old Archived Miller Extracts

    Science.gov (United States)

    Parker, Eric T.; Cleaves, H. James; Dworkin, Jason P.; Glavin, Daniel P.; Callahan, Michael P.; Aubrey, Andrew D.; Lazcano, Antonio; Bada, Jeffrey L.

    2011-01-01

    Following the discovery of an archived set of samples from Stanley Miller's early experiments, analyses were undertaken to better understand the diversity of compounds produced from electric discharges acting on reducing gas mixtures. The paper chromatography methods that Miller used in the 1950s were only capable of detecting a few amino acids and were unable to provide substantial quantitative data relative to today's techniques. Current analytical techniques are much more sensitive and selective, and are capable of precisely quantifying a much larger range of amino acids and their enantiomeric abundances. In one study, preserved dried samples produced by Miller using a lesser-known volcanic apparatus which differed from Miller's classic apparatus in that it utilized an aspirator that injected steam into the electric discharge chamber, simulating a volcanic eruption. The volcanic apparatus produced a wider variety of amino acids than the classic configuration. Prebiotic compounds synthesized in these environments may have locally accumulated where they could have undergone further processing. An additional preserved set of samples from an experiment conducted in 1958 were also found in Miller's archived collection. These samples which had been generated using a mixture of CH4, NH3, H2S and CO2 were collected, catalogued, and stored by Miller, but for unknown reasons were never studied. In our analyses a total of 23 amino acids and 4 amines, including 7 organosulfur compounds, were detected in these samples. The major amino acids with chiral centers are racemic within the accuracy of the measurements, indicating that they are not contaminants introduced during sample storage. This experiment marks the first synthesis of sulfur amino acids from spark discharge experiments designed to imitate primordial environments. The relative yield of some amino acids, in particular the isomers of amino butyric acid, are the highest ever found in a spark discharge experiment

  5. The numerical thermodynamic analysis of Otto-Miller Cycle (OMC

    Directory of Open Access Journals (Sweden)

    Cakir Mehmet

    2016-01-01

    Full Text Available This paper presents a thermodynamic analysis for an irreversible Otto-Miller Cycle (OMC by taking into consideration heat transfer effects and internal irreversibilities resulting from compression and expansion processes. In the analyses, the influences of the miller cycle ratio, combustion and heat loss constants and inlet temperature have been investigated relations with efficiency in dimensionless form. The dimensionless power output and power density and thermal efficiency relations have been computationally obtained versus the engine design parameters with respect to combustion and heat transfer constants. The results demonstrate that the heat transfer and combustion constants have considerable effects on the cycle thermodynamic performance. This situation theoretically verified for OMC.

  6. ALKALOIDS FROM SEVERAL SUBCULTURES OF Erythrina americana Miller CALLUSES

    OpenAIRE

    M. R. García-Mateos; R. M. Soto-Hernández; R. J. M. Gutiérrez; A. Villegas-Monter

    2005-01-01

    Se detectaron alcaloides del tipo isoquinolínico en callos y semillas de la especie Erythrina Americana Miller, los cuales fueron identificados por la técnica de cromatografía de líquidos acoplada a espectrometría de masas. Se estudió el efecto de los subcultivos en la producción de alcaloides de E. americana Miller, realizando siete subcultivos dse callos. La comparación del extracto metanólico obtenido a partir de semillas y de cotiledones con los de los siete subcultivos de callos de E. am...

  7. Evidence of the gastroprotective and anti-Helicobacter pylori activities of β-mangostin isolated from Cratoxylum arborescens (vahl blume

    Directory of Open Access Journals (Sweden)

    Sidahmed HMA

    2016-01-01

    Full Text Available Heyam Mohamed Ali Sidahmed,1 Najihah Mohd Hashim,1 Syam Mohan,2 Siddig Ibrahim Abdelwahab,2 Manal Mohamed Elhassan Taha,2 Firouzeh Dehghan,3 Maizatulakmal Yahayu,4 Gwendoline Cheng Lian Ee,5 Mun Fai Loke,6 Jamuna Vadivelu6 1Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia; 2Medical Research Center, Jazan University, Jazan, Saudi Arabia; 3Department of Exercise Science, Sports Centre, University of Malaya, Kuala Lumpur, 4Department of Bioproduct Research and Innovation, Institute of Bioproduct Development (IBD, Universiti Teknologi Malaysia (UTM, Johor Bahru, 5Department of Chemistry, Faculty of Science, Universiti Putra Malaysia (UPM, Serdang, 6Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia Purpose: β-Mangostin (BM from Cratoxylum arborescens demonstrated various pharmacological activities such as anticancer and anti-inflammatory. In this study, we aimed to investigate its antiulcer activity against ethanol ulcer model in rats. Materials and methods: BM was isolated from C. arborescens. Gastric acid output, ulcer index, gross evaluation, mucus production, histological evaluation using hematoxylin and eosin and periodic acid–Schiff staining and immunohistochemical localization for heat shock protein 70 (HSP70 and Bax proteins were investigated. Possible involvement of reduced glutathione, lipid peroxidation, prostaglandin E2, antioxidant enzymes, superoxide dismutase and catalase enzymes, radical scavenging, nonprotein sulfhydryl compounds, and anti-Helicobacter pylori were investigated. Results: BM showed antisecretory activity against the pylorus ligature model. The pretreatment with BM protect gastric mucosa from ethanol damaging effect as seen by the improved gross and histological appearance. BM significantly reduced the ulcer area formation, the submucosal edema, and the leukocytes infiltration compared to the ulcer control. The compound

  8. Modigliani-Miller, Basel 3 and CRD 4

    DEFF Research Database (Denmark)

    Balling, Morten

    2015-01-01

    Since 2007, bank capital regulation has been strengthened in Europe and globally. Bank organizations have expressed serious concerns about the impact of higher capital requirements on bank funding costs adn on the lending capacity of banks. The message of a 1958-Article by Modigliani and Miller is...

  9. Obscenity Law Since Miller: Another Troublesome Balancing Formula.

    Science.gov (United States)

    Haan, David H.

    A 1973 Supreme Court decision ("Miller v. California") established the system of defining obscenity on the local level according to the following criteria: first, prurient appeal and patent offensiveness are to be determined by a community rather than by a national standard; second, sexually explicit materials are judged obscene only if specified…

  10. SLN as a topical delivery system for Artemisia arborescens essential oil: In vitro antiviral activity and skin permeation study

    Science.gov (United States)

    Lai, Francesco; Sinico, Chiara; De Logu, Alessandro; Zaru, Marco; Müller, Rainer H; Fadda, Anna M

    2007-01-01

    The effect of SLN incorporation on transdermal delivery and in vitro antiherpetic activity of Artemisia arborescens essential oil was investigated. Two different SLN formulations were prepared using the hot – pressure homogenization technique, Compritol 888 ATO as lipid, and Poloxamer 188 and Miranol Ultra C32 as surfactants. Formulations were examined for their stability for two years by monitoring average size distribution and zeta potential values. The antiviral activity of free and SLN incorporated essential oil was tested in vitro against Herpes Simplex Virus-1 (HSV-1) by a quantitative tetrazolium-based colorimetric method (MTT), while the effects of essential oil incorporation into SLN on both the permeation through and the accumulation into the skin strata was investigated by using in vitro diffusion experiments through newborn pig skin and an almond oil Artemisia essential oil solution as a control. Results showed that both SLN formulations were able to entrap the essential oil in high yields and that the mean particle size increased only slightly after two years of storage, indicating a high physical stability. In vitro antiviral assays showed that SLN incorporation did not affect the essential oil antiherpetic activity. The in vitro skin permeation experiments demonstrated the capability of SLN of greatly improving the oil accumulation into the skin, while oil permeation occurred only when the oil was delivered from the control solution. PMID:18019840

  11. SLN as a topical delivery system for Artemisia arborescens essential oil: in vitro antiviral activity and skin permeation study.

    Science.gov (United States)

    Lai, Francesco; Sinico, Chiara; De Logu, Alessandro; Zaru, Marco; Müller, Rainer H; Fadda, Anna M

    2007-01-01

    The effect of SLN incorporation on transdermal delivery and in vitro antiherpetic activity of Artemisia arborescens essential oil was investigated. Two different SLN formulations were prepared using the hot-pressure homogenization technique, Compritol 888 ATO as lipid, and Poloxamer 188 and Miranol Ultra C32 as surfactants. Formulations were examined for their stability for two years by monitoring average size distribution and zeta potential values. The antiviral activity of free and SLN incorporated essential oil was tested in vitro against Herpes Simplex Virus-1 (HSV-1) by a quantitative tetrazolium-based colorimetric method (MTT), while the effects of essential oil incorporation into SLN on both the permeation through and the accumulation into the skin strata was investigated by using in vitro diffusion experiments through newborn pig skin and an almond oil Artemisia essential oil solution as a control. Results showed that both SLN formulations were able to entrap the essential oil in high yields and that the mean particle size increased only slightly after two years of storage, indicating a high physical stability. In vitro antiviral assays showed that SLN incorporation did not affect the essential oil antiherpetic activity. The in vitro skin permeation experiments demonstrated the capability of SLN of greatly improving the oil accumulation into the skin, while oil permeation occurred only when the oil was delivered from the control solution. PMID:18019840

  12. Wentworth Miller : "Minu edu saladus? Kunstniku hing ja bürokraadi pulss" / Wentworth Miller ; koost. Triin Tael

    Index Scriptorium Estoniae

    Miller, Wentworth

    2006-01-01

    Cannes'is hotellis Carlton toimunud pressikonverentsist, kus ajakirjanike küsimustele vastasid põnevusseriaali "Põgenemine" peaosatäitjad Wentworth Miller ja Dominic Purcell. Lisaks "Wentworth SL Õhtulehele : "Minu südame võitmiseks tuleb oodata" ja tutvustus "Wentworthi läbimurdefilm täna õhtul ETVs"

  13. Arquitetura, anatomia e histoquímica das folhas de Gomphrena arborescens L.f. (Amaranthaceae Architecture, anatomy and histochemistry of the leaves of Gomphrena arborescens L.f. (Amaranthaceae

    Directory of Open Access Journals (Sweden)

    Suzane Margaret Fank-de-Carvalho

    2005-06-01

    Full Text Available As folhas de Gomphrena arborescens L.f., nativa do Cerrado, são utilizadas contra dismenorréia na medicina popular. As investigações morfológica, anatômica e histoquímica das folhas visam fornecer elementos para taxonomia, para controle de qualidade de drogas e identificação microscópica de fitoterápicos. Folhas foram coletadas em Brasília, DF, nas áreas de Cerrado do Centro Olímpico da Univesidade de Brasília e na Reserva Ecológica do IBGE. Foram efetuadas análises morfológicas, anatômicas e histoquímicas. Os estudos de arquitetura foliar, densidade estomática e de vênulas terminais foram efetuados em folhas diafanizadas, apresentando médias de 42,39±15,50 estômatos mm-2 e 11,7±3,55 vênulas terminais mm². As folhas apresentaram duas formas de tricomas tectores. O mesofilo bilateral apresenta tecido clorenquimático disposto radialmente à bainha parenquimática completa que envolve os feixes vasculares, características da síndrome Kranz associada ao ciclo fotossintético C4. O amido concentra-se na bainha parenquimática. As folhas são ricas em celulose, drusas de oxalato de cálcio, proteínas, lignina e outros compostos fenólicos, entre eles os flavonóides. As folhas apresentam morfologia variável, mas o padrão anatômico e de venação são constantes.Leaves of the Brazilian Cerrado plant Gomphrena arborescens L.f. are used against dismenorea in popular medicine. The morphological, anatomical and histochemical investigation aims to help taxonomy, quality control of drugs and microscopical identification of phytotherapics. The leaves have been collected in Brasília, DF, in the Olympical Center of the University of Brasilia and in the Ecological Reserve of IBGE. The leaf architecture, stomatal and veinlet densities have been studied in clarified leaves, presenting average of 42,39±15,50 stomata mm² and 11,7±3,55 veinlet mm-2. Leaves presented two forms of tector trichomes. The bilateral mesophyll

  14. Sound Employment in the Adapted Movie-Daisy Miller

    Institute of Scientific and Technical Information of China (English)

    钦白兰

    2009-01-01

    Daisy Miller is a 1974 Ameriean drama movie directed by Peter Bogdanovich.It iS an adaptation of the Henry James‘novella of the same name.The movie,conmimng many symbolic cinematic techniques,iS about a beautiful young American girl died of"Roman fever"in Europe.This paper is devoted to the cinematic sound employment in the movie-Daisy Miller,with a purpose to show how the movie employs different sounds,difierent from the novella.to activate its theme.From the cinematic sound perspective,the paper claims that as all adapted movie,cinematic sound employment deeps the thematic realization,subtly intriguing with James,for the audience.

  15. Controversies and challenges of vaccination: an interview with Elizabeth Miller.

    Science.gov (United States)

    Miller, Elizabeth

    2015-01-01

    Although strong evidence exists that the benefits of vaccination by far outweigh potential adverse events, controversy still exists. This has led opponents of vaccination to question its safety, efficacy and necessity. In an interview with Professor Elizabeth Miller, we discuss the continuum of beliefs held by vaccine refusers and hesitators, the resulting health consequences, and ways in which health professionals and industry regulators can help promote transparency to better convey the substantial health benefits of vaccination. PMID:26472230

  16. Organic acids composition of Cydonia oblonga Miller leaf

    OpenAIRE

    Andreia P. Oliveira; Pereira, J.A.; Andrade, P.B.; Valentão, P.; Seabra, R.M.; B.M. Silva

    2008-01-01

    Organic acid profiles of 36 Cydonia oblonga Miller leaf samples, from three different geographical origins of northern (Bragança and Carrazeda de Ansiães) and central Portugal (Covilhã), harvested in three collection months (June, August and October of 2006), were determined by HPLC/UV (214 nm). Quince leaves presented a common organic acid profile, composed of six constituents: oxalic, citric, malic, quinic, shikimic and fumaric acids. C. oblonga leaves total organic acid content varied from...

  17. THE MILLER OPERATIONAL AMPLIFIER’S SETTLING RESPONSE

    Directory of Open Access Journals (Sweden)

    E. Ruíz-May

    2007-08-01

    Full Text Available This paper presents a third-order transfer function to model the settling response of the Miller operationalamplifier. The amplifier was simulated (spice and designed according to design rules of a standard 1.5μmCMOS fabrication process. The proposed mathematical model -based on design parameters under thedesigner’s control- is the best settling approach reported up to now

  18. Miller-Fisher Syndrome: Is the ataxia central or peripheral?

    OpenAIRE

    Sandler, R.D.; Hoggard, N; Hadjivassiliou, M

    2015-01-01

    A 50-year-old man presented with a brief history of slurred speech, unsteadiness, double vision and paraesthesia. He had been unwell for 12 days with campylobacter gastroenteritis. On examination, there was ophthalmoplegia, nystagmus, areflexia and lower limb and gait ataxia. Serological testing was positive for GQ1b antibody in keeping with the diagnosis of Miller Fisher Syndrome (MFS). He was treated with two courses of intravenous immunoglobulins and made a good recovery, only displaying m...

  19. Petrography and Geochemistry of Lunar Meteorite Miller Range 13317

    Science.gov (United States)

    Zeigler, R. A.; Korotev, R. L.

    2016-01-01

    Miller Range (MIL) 13317 is a 32-g lunar meteorite collected during the 2013-2014 ANSMET (Antarctic Search for Meteorites) field season. It was initially described as having 25% black fusion crust covering a light- to dark-grey matrix, with numerous clasts ranging in size up to 1 cm; it was tenta-tively classified as a lunar anorthositic breccia. Here we present the petrography and geochemistry of MIL 13317, and examine possible pairing relationships with previously described lunar meteorites.

  20. A Portfolio of Nobel Laureates: Markowitz, Miller and Sharpe

    OpenAIRE

    Hal Varian

    1993-01-01

    Three pioneers of quantitative finance have now been justly honored: Harry Markowitz, Merton Miller, and William Sharpe received the Nobel Prize in Economic Science in 1990. From today's perspective it is hard to understand what finance was like before portfolio theory. Here I attempt to provide a very brief history of the quantitative revolution in finance, drawing upon P. Bernstein's Capital Ideas (1992) and accounts of the three Nobel laureates.

  1. Hybrid Automotive Engine Using Ethanol-Burning Miller Cycle

    Science.gov (United States)

    Weinstein, Leonard

    2004-01-01

    A proposed hybrid (internal-combustion/ electric) automotive engine system would include as its internal-combustion subsystem, a modified Miller-cycle engine with regenerative air preheating and with autoignition like that of a Diesel engine. The fuel would be ethanol and would be burned lean to ensure complete combustion. Although the proposed engine would have a relatively low power-to-weight ratio compared to most present engines, this would not be the problem encountered if this engine were used in a non-hybrid system since hybrid systems require significantly lower power and thus smaller engines than purely internal-combustion-engine-driven vehicles. The disadvantage would be offset by the advantages of high fuel efficiency, low emission of nitrogen oxides and particulate pollutants, and the fact that ethanol is a renewable fuel. The original Miller-cycle engine, named after its inventor, was patented in the 1940s and is the basis of engines used in some modern automobiles, but is not widely known. In somewhat oversimplified terms, the main difference between a Miller-cycle engine and a common (Otto-cycle) automobile engine is that the Miller-cycle engine has a longer expansion stroke while retaining the shorter compression stroke. This is accomplished by leaving the intake valve open for part of the compression stroke, whereas in the Otto cycle engine, the intake valve is kept closed during the entire compression stroke. This greater expansion ratio makes it possible to extract more energy from the combustion process without expending more energy for compression. The net result is greater efficiency. In the proposed engine, the regenerative preheating would be effected by running the intake air through a heat exchanger connected to the engine block. The regenerative preheating would offer two advantages: It would ensure reliable autoignition during operation at low ambient temperature and would help to cool the engine, thereby reducing the remainder of the

  2. Character Contrast in Arthur Miller's Death of a Salesman

    Institute of Scientific and Technical Information of China (English)

    程欣

    2007-01-01

      "I regard the theater as a serious business,one that makes or should make man more human,which is to say,less alone."A great playwright of social philosophy,Arthur Miller advocares that the common man,and none of rank,is the tragic hero of modern times.His plays have always revealed before the public eyes the tragedy of the average American life,the psychology of the ordinary people,and their conflicts with the morality of society.……

  3. Adleman-Manders-Miller Root Extraction Method Revisited

    OpenAIRE

    Cao, Zhengjun; Sha, Qian; Fan, Xiao

    2011-01-01

    In 1977, Adleman, Manders and Miller had briefly described how to extend their square root extraction method to the general $r$th root extraction over finite fields, but not shown enough details. Actually, there is a dramatic difference between the square root extraction and the general $r$th root extraction because one has to solve discrete logarithms for $r$th root extraction. In this paper, we clarify their method and analyze its complexity. Our heuristic presentation is helpful to grasp t...

  4. Concentrations of Uranium Isotopes in Uranium Millers' and Miners' Tissues

    OpenAIRE

    United States Nuclear Regulatory Commission

    1985-01-01

    The alpha-emitting isotopes of uranium and thorium were determined in the lungs of 14 former uranium miners and in soft tissues and bones of three miners and two millers. These radionuclides were also determined in soft tissues and bones of seven normal controls. The average concentrations in pCi/kg wet weight in 17 former miners' lungs are as follows: U-238, 75; U-234, 80; Th-230, 79. Concentrations of each nuclide ranged from 2 to 325 pCi/kg. The average ratio of U-238/U-234 ws 0.92, r...

  5. A Case of Neuromyelitis Optica Masquerading as Miller Fisher Syndrome

    Directory of Open Access Journals (Sweden)

    Yuka Furutani

    2014-10-01

    Full Text Available A 22-year-old woman presented with double vision that she had experienced since an infection 2 weeks previously. A neurological examination showed limited bilateral eye abduction, mimicking Miller Fisher syndrome. However, T2-weighted magnetic resonance imaging of her brain revealed hyperintense areas in the tegmentum of the pons, including the abducens nucleus, and her serum anti-aquaporin-4 antibody test was positive. She was finally diagnosed with neuromyelitis optica. Intravenous high-dose steroid therapy immediately improved the patient's abduction palsy, but bilateral optic neuritis manifested during the treatment. Subsequent treatment with plasma exchange improved her optic neuritis symptoms.

  6. Amending Miller's Pyramid to Include Professional Identity Formation.

    Science.gov (United States)

    Cruess, Richard L; Cruess, Sylvia R; Steinert, Yvonne

    2016-02-01

    In 1990, George Miller published an article entitled "The Assessment of Clinical Skills/Competence/Performance" that had an immediate and lasting impact on medical education. In his classic article, he stated that no single method of assessment could encompass the intricacies and complexities of medical practice. To provide a structured approach to the assessment of medical competence, he proposed a pyramidal structure with four levels, each of which required specific methods of assessment. As is well known, the layers are "Knows," "Knows How," "Shows How," and "Does." Miller's pyramid has guided assessment since its introduction; it has also been used to assist in the assessment of professionalism.The recent emphasis on professional identity formation has raised questions about the appropriateness of "Does" as the highest level of aspiration. It is believed that a more reliable indicator of professional behavior is the incorporation of the values and attitudes of the professional into the identity of the aspiring physician. It is therefore proposed that a fifth level be added at the apex of the pyramid. This level, reflecting the presence of a professional identity, should be "Is," and methods of assessing progress toward a professional identity and the nature of the identity in formation should be guided by currently available methods. PMID:26332429

  7. Parasitofauna de cachara cultivado em tanque-rede no rio Paraguai

    OpenAIRE

    2013-01-01

    O objetivo deste trabalho foi descrever a fauna parasitária de cachara (Pseudoplatystoma reticulatum) cultivado em tanque-rede, no rio Paraguai. Dez peixes com peso médio de 598,0±81,3 g e comprimento total médio de 38,6±1,6 cm foram examinados. Todos os peixes necropsiados apresentaram infestação por pelo menos duas espécies de parasitos. Entre os parasitos, foram encontrados Ichthyophthirius multifiliis (Ciliophora), Myxobolus sp. e Henneguya sp. (Myxozoa), Monogenoidea, Choanoscolex abscis...

  8. Maslow and Miller: An Exploration of Gender and Affiliation in the Journey to Competence

    Science.gov (United States)

    Coy, Doris Rhea; Kovacs-Long, Judith

    2005-01-01

    This article shows that although neither Abraham Maslow nor Jean Baker Miller reference each other in their writings, they are following different paths to the same conclusion: competence proceeds from connection. Miller and Maslow both describe a developmental model that applies equally to women and men. The conclusion of the authors of this…

  9. Does Morality Harm Children? Alice Miller on Morality and Poisonous Pedagogy

    Science.gov (United States)

    Fridley, William L.

    2006-01-01

    Alice Miller, the former psychoanalyst, has gained world renown for her controversial and provocative writings on child rearing. Miller contends that traditional child rearing practices--in schools, ecclesiastical settings, and the family--consist of physical and emotional cruelty that she labels "poisonous pedagogy." According to…

  10. Introduction and Acclimatization of Wild Forgae-- Ⅰ. Ceratoides arborescens%野生牧草的引种驯化——Ⅰ华北驼绒藜

    Institute of Scientific and Technical Information of China (English)

    赵书元; 阿拉塔

    2012-01-01

    Ceratoides arborescend is preferred by livestock such as sheep,horses and camels because of its luxuriant foliages, abundant nutrition, rich protein and calcium. It's stem and leaf preserved well in cold season, and the characteristics of drought resistance,cold resistance, barren tolerance made it a kind of excellent xerophil semi-shrub in arid area. It's also a kind of important grass seed for building and planting in non-irrigated pasture. This paper introduces Ceratoides arborescens' exploitation and utilization, morphological characteristics, ecological types and cytology researches, growth and development, adaptation and habitats,building and planting technology,grassland management,nutritional value ;it also gives reference plants ofthe same genus as Ceratoides arborescens for extending plantation, exploitation and utilization.%华北驼绒藜枝叶繁茂,营养丰富,富含蛋白质及钙,为羊、马、骆驼等家畜所喜食。其茎叶在冷季保存良好,并具有抗旱、抗寒、耐瘠薄的特性,是干旱地区的优等半灌木饲草,也是建植灌草结合旱作草地的重要草种之一。概述了华北驼绒藜的开发利用、形态特征、生态型与细胞学研究、生长发育、适应性和生境条件、建植技术与草地管理、营养价值,并介绍了华北驼绒藜的同属植物,以期为更好地推广种植和合理开发利用华北驼绒藜提供参考。

  11. The cosmopolitan strikes back: a critical discussion of Miller on nationality and global equality

    Directory of Open Access Journals (Sweden)

    Nils Holtug

    2011-09-01

    Full Text Available According to David Miller, we have stronger obligations towards our co-nationals than we have towards non-nationals. While a principle of equality governs our obligations of justice within the nation-state, our obligations towards non-nationals are governed by a weaker principle of sufficiency. In this paper, I critically assess Miller's objection to a traditional argument for global egalitarianism, according to which nationalist and other deviations from equality rely on factors that are arbitrary from a moral point of view. Then I critically discuss Miller's claim that there is no culturally neutral currency with respect to which we may reasonably claim that people should be equally well off on a global scale. Furthermore, I critically discuss Miller's claim that cosmopolitanism undermines national responsibility. And finally, I turn to Miller's own sufficientarian account of global justice and argue that it exhibits too little concern for the plight of the globally worse off.

  12. An Explanation of Dayton Miller's Anomalous "Ether Drift" Result

    CERN Document Server

    Roberts, T J

    2006-01-01

    In 1933 Dayton Miller published in this journal the results of his voluminous observations using his ether drift interferometer, and proclaimed that he had determined the "absolute motion of the earth". This result is in direct conflict with the prediction of Special Relativity, and also with numerous related experiments that found no such signal or "absolute motion". This paper presents a complete explanation for his anomalous result by: a) showing that his results are not statistically significant, b) describing in detail how flaws in his analysis procedure produced a false signal with precisely the properties he expected, and c) presenting a quantitative model of his systematic drift that shows there is no real signal in his data. In short, this is every experimenter's nightmare: he was unknowingly looking at statistically insignificant patterns in his systematic drift that mimicked the appearance of a real signal. An upper limit on "absolute motion" of 6 km/sec is derived from his raw data, fully consiste...

  13. Adaptation: a contemporary view, revisiting Crichton-Miller's 1925 paper.

    Science.gov (United States)

    Music, Graham

    2016-03-01

    In this paper I discuss a contemporary 'take' on the concept of adaptation in light of Crichton-Miller's original 1926 paper. I look briefly at some of the ways that contemporary thinking is both similar to and different from ideas of 90 years ago. In particular I think about how recent neurobiological findings, epigenetic research and attachment theory have cast new light on our understanding of the ways humans adapt to social and emotional environments. It looks at how psychiatric presentations which are seen as maladaptive might well have an adaptive origin in early life. In this account I emphasise how a more modern version of evolutionary theory can be developed, particularly one influenced by life history theory, and suggest that such ideas have powerful explanatory power as well as being based solidly in good research. PMID:26908879

  14. Biofunctional properties of Eruca sativa Miller (rocket salad) hydroalcoholic extract.

    Science.gov (United States)

    Sultan, Khushbakht; Zakir, Muhammad; Khan, Haroon; Rauf, Abdur; Akber, Noor Ul; Khan, Murad Ali

    2016-05-01

    Eruca sativa Miller is a worldwide common alimentary plant (rocket leaves). The aim of this study was to correlate the potential in vitro scavenging activity of the E. sativa hydroalcoholic extract (HAE) with its in vivo hypoglycaemic effect. In DDPH free radical (DFR) and ferric-reducing antioxidant power assays, HAE in a concentration dependent manner (25-100 μg/mL) displayed a strong scavenging activity with maximum effect of 88% and 75% at 100 μg/mL, respectively. Daily administration of HAE (50 mg/kg; p.o.) in the in vivo model of alloxan-induced diabetic rabbits for 28 days showed significant reduction in glycaemia, also supported by recovery of body weight. In conclusion, our results give preliminary information on the potential use of this plant as a nutraceutical, useful to control and/or prevent a hyperglycaemic status. PMID:26156861

  15. Pollen Morphology of Acinos Miller Species Growing in Turkey

    Institute of Scientific and Technical Information of China (English)

    Ayla Kaya; Hatice Kutluk

    2007-01-01

    The pollen morphology of six taxa of the genus Acinos Miller has been examined under scanning electron microscopy(SEM) and a description of each taxon has been given. Acinos pollen is stephanocolpate (hexacolpate). Two main exine sculpturing types, foveolate-reticulate (only in subspecies of A. troodi) and reticulate have been defined. The dimension for the polar length ranges between 25.8-47.4 μm, equatorial width 24.5-34.4 μm, colpus length 20.0-40.5 μm and colpus width 1.2-2.5 μm. The shape is mostly subprolate to prolate, seldomly prolate-spheroidal. The results reveal rather uniform morphological features, however fine details are characteristic to differentiate the pollen taxa. Acinos pollen also share some common morphological features with the other Lamiaceae pollen.

  16. The Modigliani-Miller theorems: a cornerstone of finance

    Directory of Open Access Journals (Sweden)

    Marco Pagano

    2005-01-01

    Full Text Available The Modigliani-Miller (MM theorems are a cornerstone of finance for two reasons. The first is substantive and it stems from their nature of "irrelevance propositions": by providing a crystal-clear benchmark case where capital structure and dividend policy do not affect firm value, by implication these propositions help us understand when these decisions may affect the value of firms, and why. Indeed, the entire subsequent development of corporate finance can be described essentially as exploring the consequences of relaxing the MM assumptions. The second reason for the seminal importance of MM is methodological, by relying on an arbitrage argument, they set a precedent not only within the realm of corporate finance but also (and even more importantly within that of asset pricing.

  17. Experimental investigation of applying Miller cycle to reduce NO{sub x} emission from diesel engine

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Y. [University of Ulster, Newtownabbey (United Kingdom). Northern Ireland Centre for Energy Research and Technology, School of the Built Environment; Zeng, S.; Huang, J.; He, Y.; Huang, X. [Guangxi University, Nanning (China). Mechanical Engineering College; Lin, L. [Nanning College for Vocational Technology (China); Li, S. [Guangxi University of Technology, Liuzhou (China)

    2005-12-15

    An experimental investigation of nitrogen oxides (NO{sub x}) emission reduction from a diesel engine using the Miller cycle was carried out. A Lister-Petter diesel engine, type TS2, was used for the experiments. Three versions of Miller cycles were designed and realized on a diesel engine. A series of tests were carried out on the test rig to compare the performances and emissions of the original engine (standards dual cycle) with those of the three versions of Miller cycles. The test results from the standard dual cycle and from the three versions of Miller cycles showed that applying Miller cycle to the diesel engine could reduce the NO{sub x} emission from the diesel engine. The reduction ratios of NO{sub x} for the Miller cycles are from 4.4 to 17.5 per cent. The best reduction effect is Miller cycle 1 and the reduction rates of NO{sub x} are from 11.0 to 17.5 per cent. (author)

  18. Organic acids composition of Cydonia oblonga Miller leaf.

    Science.gov (United States)

    Oliveira, Andreia P; Pereira, José A; Andrade, Paula B; Valentão, Patrícia; Seabra, Rosa M; Silva, Branca M

    2008-11-15

    Organic acid profiles of 36 Cydonia oblonga Miller leaf samples, from three different geographical origins of northern (Bragança and Carrazeda de Ansiães) and central Portugal (Covilhã), harvested in three collection months (June, August and October of 2006), were determined by HPLC/UV (214nm). Quince leaves presented a common organic acid profile, composed of six constituents: oxalic, citric, malic, quinic, shikimic and fumaric acids. C. oblonga leaves total organic acid content varied from 1.6 to 25.8g/kg dry matter (mean value of 10.5g/kg dry matter). Quinic acid was the major compound (72.2%), followed by citric acid (13.6%). Significant differences were found in malic and quinic acids relative abundances and total organic acid contents according to collection time, which indicates a possible use of these compounds as maturity markers. Between June and August seems to be the best period to harvest quince leaves for preparation of decoctions or infusions, since organic acids total content is higher in this season. PMID:26047441

  19. Aanpassing en toetsing van die Rothwell-Miller-belangstellingsvraelys

    Directory of Open Access Journals (Sweden)

    Jacobus G. Maree

    2015-02-01

    Full Text Available Die doel van hierdie studie was om ’n bestaande, maar uiters verouderde belangstellingsvraelys (Rothwell-Miller-belangstellingsvraelys [RMBV] aan te pas. In die eerste fase is vier provinsies by wyse van doelsteekproeftrekking geselekteer: een stedelik en drie plattelands of semiplattelands. In fase twee is ’n steekproef van 518 Graad 11-leerders met behulp van doelsteekproeftrekking geselekteer (gemiddelde ouderdom [x] manlik = 17.52 jaar, vroulik = 17.39 jaar; standaardafwyking [s] manlik = 0.97 jaar, vroulik = 0.93 in agt skole, verdeel volgens onderrigtaal (Afrikaans/Engels en streek (stedelik/plattelands/semiplattelands. Statistiese analises het die vasstelling van betroubaarheid ingesluit by wyse van die berekening van Cronbach se α, asook die halfverdelingsmetode. Die data is verder geanaliseer by wyse van statistiese tegnieke soos t-toetse, ANOVA, asook Tukey se Honest Significant Differencetoets (HSD. Die resultate word bespreek en die gevolgtrekking word gemaak dat hoewel die aangepaste vraelys tot ’n nuttige instrument vir gebruik in Suid-Afrika ontwikkel kan word, verdere navorsing eers nodig is.

  20. Osservazioni su alcuni taxa dei generi: Corybantes Hübner, [1819], Athis Hübner, [1819], Zegara Oiticica, 1955, Mirocastnia Miller, 1980 e Insigniocastnia Miller, 2007 (Lepidoptera: Castniidae)

    OpenAIRE

    R. Vinciguerra

    2008-01-01

    Los conocimientos sobre los lepidópteros Castniidae su taxonomía, eco-etología y distribución geográfica, son muy pocos, incompletos y fragmentarios en las publicaciones científicas. Representamos nueve raros taxa pertenecientes a los géneros: Corybantes Hübner, [1819], Athis Hübner,[1819], Zegara Oiticica, 1955, Mirocastnia Miller, 1980 Insigniocastnia Miller, 2007 dando informaciones suplementarias sobre su eco-etología y los respectivos géneros.

  1. Parasitofauna de cachara cultivado em tanque-rede no rio Paraguai

    Directory of Open Access Journals (Sweden)

    Gabriela Tomas Jeronimo

    2013-08-01

    Full Text Available O objetivo deste trabalho foi descrever a fauna parasitária de cachara (Pseudoplatystoma reticulatum cultivado em tanque-rede, no rio Paraguai. Dez peixes com peso médio de 598,0±81,3 g e comprimento total médio de 38,6±1,6 cm foram examinados. Todos os peixes necropsiados apresentaram infestação por pelo menos duas espécies de parasitos. Entre os parasitos, foram encontrados Ichthyophthirius multifiliis (Ciliophora, Myxobolus sp. e Henneguya sp. (Myxozoa, Monogenoidea, Choanoscolex abscissus e Nominoscolex sudobim (Cestoda, Dolops carvalhoi (Crustacea e Digenea. O protozoário Ichthyophthirius multifiliis foi o parasito com maior prevalência.

  2. On possibilities of application of Miller formula for determination of parameters of Micropixel Avalanche Photodiodes

    CERN Document Server

    Sadygov, Z; Akhmedov, G; Akhmedov, F; Mukhtarov, R; Sadygov, A; Titov, A; Zhezher, V

    2014-01-01

    Miller formula modified to take into account voltage drop on serial resistor of an avalanche photodiode is considered. It is proven by experimental data that modified Miller formula can describe operation of both regular and micropixel avalanche photodiodes with good enough precision. It is shown that operation parameters of the devices can be determined using a linear extrapolation of the voltage-current curve for both regular avalanche photodiode and the one operating in Geiger mode.

  3. Primordial soup was edible: abiotically produced Miller-Urey mixture supports bacterial growth

    OpenAIRE

    Xueshu Xie; Daniel Backman; Albert T. Lebedev; Viatcheslav B. Artaev; Liying Jiang; Ilag, Leopold L.; Zubarev, Roman A.

    2015-01-01

    Sixty years after the seminal Miller-Urey experiment that abiotically produced a mixture of racemized amino acids, we provide a definite proof that this primordial soup, when properly cooked, was edible for primitive organisms. Direct admixture of even small amounts of Miller-Urey mixture strongly inhibits E. coli bacteria growth due to the toxicity of abundant components, such as cyanides. However, these toxic compounds are both volatile and extremely reactive, while bacteria are highly capa...

  4. The application of the Modigliani-Miller theorem to Japanese industry

    OpenAIRE

    Katirai, Farzad.

    1984-01-01

    The purpose of this thesis is to study some aspects of Japanese corporate finance, using the analytical tools of the Modigliani-Miller theorem. The Modigliani Miller theorem is a fundamental element in the theory of finance, and establishes the conditions under which the financial structure of the firm is irrelevant to the determination of real corporate values. In its simplest form the theorem requires the presence of perfect capital markets. In the real world,- howe...

  5. An analytic study of applying Miller cycle to reduce NOx emission from petrol engine

    International Nuclear Information System (INIS)

    An analytic investigation of applying Miller cycle to reduce nitrogen oxides (NOx) emissions from a petrol engine is carried out. The Miller cycle used in the investigation is a late intake valve closing version. A detailed thermodynamic analysis of the cycle is presented. A comparison of the characters of Miller cycle with Otto cycle is presented. From the results of thermodynamic analyses, it can be seen that the application of Miller cycle is able to reduce the compression pressure and temperature in the cylinder at the end of compression stroke. Therefore, it lowers down the combustion temperature and NOx formation in engine cylinder. These results in a lower exhaust temperature and less NOx emissions compared with that of Otto cycle. The analytic results also show that Miller cycle ratio is a main factor to influence the combustion temperature, and then the NOx emissions and the exhaust temperature. The results from the analytic study are used to analyse and to compare with the previous experimental results. An empirical formula from the previous experimental results that showed the relation of NOx emissions with the exhaust temperature at different engine speed is presented. The results from the study showed that the application of Miller cycle may reduce NOx emissions from petrol engine

  6. Cerebellar and pontine tegmental hypermetabolism in miller-fisher syndrome

    International Nuclear Information System (INIS)

    Miller Fisher syndrome (MFS) has been considered as a variant of Guillain-Barre syndrome (GBS), a type of acute immune neuropathies involving peripheral nerve system. Unlike GBS, presence of cerebellar type ataxia and supranuclear ophthalmioplesia in MFS suggests additional involvement of the central nervous system. To determine involvement of the central nervous system in MFS, we investigated the cerebral metabolic abnormalities in patients with MFS using FDG PET. Nine patients who were diagnosed as MFS based on acute ophthalmoplegia, ataxia, and areflexia without other identifiable causes participated in this study. In six patients, serum antibodies possibly related with symptom of MFS (anti- GQ1b or anti-GM1) were detected at the time of the study. With the interval of 25 26 days (range: 3-83 days) from the symptom on set, brain FDG PET were underwent in patients and compared with those from healthy controls. In group analysis comparing with healthy controls, FDG PET of patients revealed increased metabolism in the bilateral cerebellar hemispheres and vermis, and the thalamus. In contrast, the occipital cortex showed decreased metabolism. Individual analyses disclosed hypermetabolism in the cerebellar vermis or hemispheres in 5, and in the pontine tegmentum in 2 of the 9 patients. We also found that the cerebellar vermian hypermetabolism was inversely correlated with the interval between from the symptom on set to PET study. Moreover, follow-up PET of a patient demonstrated that cerebellar hypermetabolism decreased markedly with an improvement of the ophthalmoplegia and ataxia. These findings indicate an involvement of the central nervous system in MFS and suggest an antibody-associated acute inflammatory process as a mechanism of this disorder

  7. Cerebellar and pontine tegmental hypermetabolism in miller-fisher syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Yu Kyrong; Kim, Ji Soo; Lee, Won Woo; Kim, Sang Eun [Seoul National Univ. College of Medicine, Seoul (Korea, Republic of)

    2007-07-01

    Miller Fisher syndrome (MFS) has been considered as a variant of Guillain-Barre syndrome (GBS), a type of acute immune neuropathies involving peripheral nerve system. Unlike GBS, presence of cerebellar type ataxia and supranuclear ophthalmioplesia in MFS suggests additional involvement of the central nervous system. To determine involvement of the central nervous system in MFS, we investigated the cerebral metabolic abnormalities in patients with MFS using FDG PET. Nine patients who were diagnosed as MFS based on acute ophthalmoplegia, ataxia, and areflexia without other identifiable causes participated in this study. In six patients, serum antibodies possibly related with symptom of MFS (anti- GQ1b or anti-GM1) were detected at the time of the study. With the interval of 25 26 days (range: 3-83 days) from the symptom on set, brain FDG PET were underwent in patients and compared with those from healthy controls. In group analysis comparing with healthy controls, FDG PET of patients revealed increased metabolism in the bilateral cerebellar hemispheres and vermis, and the thalamus. In contrast, the occipital cortex showed decreased metabolism. Individual analyses disclosed hypermetabolism in the cerebellar vermis or hemispheres in 5, and in the pontine tegmentum in 2 of the 9 patients. We also found that the cerebellar vermian hypermetabolism was inversely correlated with the interval between from the symptom on set to PET study. Moreover, follow-up PET of a patient demonstrated that cerebellar hypermetabolism decreased markedly with an improvement of the ophthalmoplegia and ataxia. These findings indicate an involvement of the central nervous system in MFS and suggest an antibody-associated acute inflammatory process as a mechanism of this disorder.

  8. Human radiation studies: Remembering the early years. Oral history of radiologist Earl R. Miller, M.D., August 9 and 17, 1994

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-06-01

    Dr. Earl R. Miller was interviewed by representatives of US DOE Office of Human Radiation Research (OHRE). The interview covers Dr. Miller`s involvement with the Manhattan Engineer District, with total body irradiation, and heavy-ion therapy. Dr. Miller`s remembrances include wartime work on radiation exposure, Joe Hamilton, Neutron Therapy research, means of obtaining isotopes, consent forms, infinite laminograms, invention of a baby holder to alleviate exposure of radiological technicians in diagnostic procedures involving infants, and several personages.

  9. George Miller's magical number of immediate memory in retrospect: Observations on the faltering progression of science.

    Science.gov (United States)

    Cowan, Nelson

    2015-07-01

    Miller's (1956) article about storage capacity limits, "The Magical Number Seven Plus or Minus Two . . .," is one of the best-known articles in psychology. Though influential in several ways, for about 40 years it was oddly followed by rather little research on the numerical limit of capacity in working memory, or on the relation between 3 potentially related phenomena that Miller described. Given that the article was written in a humorous tone and was framed around a tongue-in-cheek premise (persecution by an integer), I argue that it may have inadvertently stymied progress on these topics as researchers attempted to avoid ridicule. This commentary relates some correspondence with Miller on his article and concludes with a call to avoid self-censorship of our less conventional ideas. (PsycINFO Database Record PMID:25751370

  10. Primordial soup was edible: abiotically produced Miller-Urey mixture supports bacterial growth.

    Science.gov (United States)

    Xie, Xueshu; Backman, Daniel; Lebedev, Albert T; Artaev, Viatcheslav B; Jiang, Liying; Ilag, Leopold L; Zubarev, Roman A

    2015-01-01

    Sixty years after the seminal Miller-Urey experiment that abiotically produced a mixture of racemized amino acids, we provide a definite proof that this primordial soup, when properly cooked, was edible for primitive organisms. Direct admixture of even small amounts of Miller-Urey mixture strongly inhibits E. coli bacteria growth due to the toxicity of abundant components, such as cyanides. However, these toxic compounds are both volatile and extremely reactive, while bacteria are highly capable of adaptation. Consequently, after bacterial adaptation to a mixture of the two most abundant abiotic amino acids, glycine and racemized alanine, dried and reconstituted MU soup was found to support bacterial growth and even accelerate it compared to a simple mixture of the two amino acids. Therefore, primordial Miller-Urey soup was perfectly suitable as a growth media for early life forms. PMID:26412575

  11. JAPANESE MILLERS' PREFERENCES FOR WHEAT AND FLOUR: A STATED PREFERENCE ANALYSIS

    OpenAIRE

    Kim, Renee B.; Unterschultz, James R.; Veeman, Michele M.

    2000-01-01

    Japan imports 6.3 MMT of wheat annually and consumes almost 35 percent of this in the form of noodles. The purpose of this paper is to report on a study that evaluates the preferences of Japanese millers for the various characteristics of wheat and flour that are used in noodle making in Japan. The study used stated preference methodologies (SPM), that were developed and pre-tested through initial interviews with Japanese flour millers. In total, 57 purchase and quality managers for 22 Japane...

  12. El discurso interior en los cómics de Frank Miller

    OpenAIRE

    Pérez García, Juan Carlos

    2012-01-01

    Des dels anys vuitantes, Frank Miller ha estat reconegut com un dels principals renovadors del comic book produït per la industria nordamericana. Un dels seus trets d’estil més distintius i influents és el tractament del discurs interior dels personatges, inspirat per la novel·la hard-boiled i el cinema negre americans, però també per còmics previs, de crim i de superherois. En aquest article comentem els diversos usos del discurs interior en els còmics de Miller amb casos d’estudi elegits de...

  13. Effect of Hydroalcoholic Extract of Cydonia oblonga Miller (Quince) on Sexual Behaviour of Wistar Rats

    OpenAIRE

    Muhammad Aslam; Ali Akbar Sial

    2014-01-01

    Cydonia oblonga Miller (quince) is regarded as a potent libido invigorator in Tib-e-Nabvi and Unani System of Medicine. This study was carried out to evaluate the aphrodisiac activity of the hydroalcoholic extract of the fruits of Cydonia oblonga Miller (quince) in Wistar rats. The extract was administered orally by gavage in the dose of 500 mg/kg and 800 mg/kg body weight per day as a single dose for 28 days. The observed parameters were mounting frequency, assessment of mating performance, ...

  14. Avaliação do Potencial Antioxidante da Folha de Cydonia oblonga Miller

    OpenAIRE

    Costa, Rossana Marina Soares da

    2009-01-01

    Neste trabalho é feita uma revisão da literatura no que concerne aos fundamentos teóricos e à importância dos antioxidantes na saúde humana, especialmente dos compostos fenólicos, e aos estudos fitoquímicos previamente realizados na espécie Cydonia oblonga Miller. O objectivo do trabalho de investigação realizado no âmbito desta monografia foi o de estudar o potencial antioxidante da folha de Cydonia oblonga Miller, em comparação com do chá verde (Camellia sinesis). Para a p...

  15. Migration and New Media: Transnational Families and Polymedia by Mirca Madianou and Daniel Miller (Routledge, 2012

    Directory of Open Access Journals (Sweden)

    Erwin Gaspar A. Alampay

    2012-06-01

    Full Text Available In 2007, Daniel Miller presented his paper on “What is a Mobile PhoneRelationship” in the “1st Living the Information Society Conference” held inManila. In his presentation, he mentioned the work he was just embarking onwith Mirca Madianou on long-distance relationships of separated families andthe ability of different media to sustain those relationships over time (Miller,2009. He was then building on the extensive work that Parrenas (2001, 2005a,2005b had done on Filipino transnational families, and in particular, on motheringfrom a distance

  16. Migration and New Media: Transnational Families and Polymedia by Mirca Madianou and Daniel Miller (Routledge, 2012)

    OpenAIRE

    Erwin Gaspar A. Alampay

    2012-01-01

    In 2007, Daniel Miller presented his paper on “What is a Mobile PhoneRelationship” in the “1st Living the Information Society Conference” held inManila. In his presentation, he mentioned the work he was just embarking onwith Mirca Madianou on long-distance relationships of separated families andthe ability of different media to sustain those relationships over time (Miller,2009). He was then building on the extensive work that Parrenas (2001, 2005a,2005b) had done on Filipino transnational fa...

  17. The 1953 Stanley L. Miller Experiment: Fifty Years of Prebiotic Organic Chemistry

    Science.gov (United States)

    Lazcano, Antonio; Bada, Jeffrey L.

    2003-01-01

    The field of prebiotic chemistry effectively began with a publication in Science 50 years ago by Stanley L. Miller on the spark discharge synthesis of amino acids and other compounds using a mixture of reduced gases that were thought to represent the components of the atmosphere on the primitive Earth. On the anniversary of this landmark publication, we provide here an accounting of the events leading to the publication of the paper. We also discuss the historical aspects that lead up to the landmark Miller experiment.

  18. Genetic Variation in Morphophysiological Characters of Seeds of Ceratoides arborescens, a Species Endemic to China%不同种源华北驼绒藜种群种实特征变异性研究

    Institute of Scientific and Technical Information of China (English)

    王普昶; 赵丽丽; 易津; 张锦华; 张莉; 陈莹

    2011-01-01

    [Objective] The research aimed at investigating the variation in morpho-physiological characteristics of Ceratoides arborescens seeds from Inner Mongolia grassland. [Method] The seeds of six wild C. arborescens populations were collected from Siwangziqi, Xilinhaote,Keshiketengqi and Wengniuteqi in Inner Mongolia grassland; then a total of eight indicators of seed morphology and germination traits were determined, respectively. [Result] There was wide variation in seed traits among different populations of C. arborescens. The variation within the populations was higher than that among the populations, which meant that C. arborescens had a strong adaptability to environment pressure. The seed traits shared a significant positive correlation with each other ( r > 0.931, P < 0.01 ). The three germination-related indices including seed germination rate, germination index, vitality index had significant positive correlations with each other ( r > 0.836, P <0.01 ) and with seed setting rate (r >0.896, P <0.01 ), but shared weak correlations with morphological traits. There were significant correlations between pappus length and longitude, rainfall, as well as between seed width and temperature, rainfall ( r > 0.801, P <0.01 ). [Conclusion] The research will provide reference for the seed breeding and collection of germplasm resource. We suggest that collecting seeds from various individuals from each populations will be the preferred strategy to initiate plant improvement program of the species and for gene conservation in seed banks.%[目的]研究中国特有植物种--华北驼绒藜(Ceratoides arborescens)种群种实特征变异性.[方法]采集内蒙古四子王旗、锡林浩特、克什克腾旗和瓮牛特旗4个旗县6个野生种群的华北驼绒藜种子,分别测定其种子形态和萌发特征的8个指标.[结果]华北驼绒藜种子各性状在种群内存在广泛的变异性,其种群内的变异性大于种群间,表明华北驼绒

  19. Síndrome de Miller Fisher e neurite óptica: relato de caso

    OpenAIRE

    CARVALHO ALZIRA A. SIQUEIRA; GALVÃO MARIA DE LOURDES S.; ROCHA MARIA SHEILA G.; PICCOLO ANA CLAUDIA; MAIA SOLYON C.

    2000-01-01

    Descreve-se um caso de síndrome de Miller Fisher associada a neuropatia óptica desmielinizante bilateral, confirmada pelo exame de potencial evocado visual, sugerindo possível comprometimento do sistema nervoso central nessa síndrome.

  20. Antioxidant activity of BHA, BHT and TBHQ examined with Miller's test

    Directory of Open Access Journals (Sweden)

    Karamac, M.

    1997-04-01

    Full Text Available In model experiments with the use of Miller's test to 5 ml emulsion 25, 12.5, 6.25 and 3.13µg BHA, BHT and TBHQ was added. Inhibitory ratios (IR for BHA and BHT were similar. At addition level of 6.25 and 3.13 IR for TBHQ was lower than for BHA and BHT. It is suggested that in the model studies with the use of Miller's test 25 µg BHA, BHT or TBHQ should be added to 5 ml of control sample.

    En experimentos modelos usando el test de Miller, a 5ml de emulsión se añadió 25, 12.5, 6.25 y 3.13µg de BHA, BHT y TBHQ. Las relaciones inhibitorias (IR para el BHA y BHT fueron similares. IR para TBHQ fue más baja que para BHA y BHT con niveles de adición del 6.25 y 3.13. Esto sugiere que en estudios modelos usando el test de Miller 25µg de BHA, BHT, o TBHQ deben ser añadidos a 5 ml de muestra control.

  1. 28 CFR 79.53 - Proof of employment as a miller.

    Science.gov (United States)

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Proof of employment as a miller. 79.53 Section 79.53 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) CLAIMS UNDER THE RADIATION... that the employment history for the time period indicated in records listed in paragraph (a) of...

  2. On the Conventionality of Simultaneity and the Huygens-Fresnel-Miller Model of Wave Propagation

    CERN Document Server

    Bock, Robert D

    2016-01-01

    We identify a fundamental space-time invariance principle by combining the thesis of the conventionality of simultaneity with the Hugyens-Fresnel-Miller model of wave propagation. By following the standard gauge prescription, we show that the classical electromagnetic potentials influence the one-way speed of light.

  3. Patrick Miller named a Fellow of the Council of Educators in Landscape Architecture

    OpenAIRE

    Chadwick, Heather Riley

    2007-01-01

    At its recent annual meeting at Pennsylvania State University, the Council of Educators in Landscape Architecture (CELA) named Patrick Miller, associate dean for graduate studies and outreach in Virginia Tech's College of Architecture and Urban Studies, as a Fellow of the council.

  4. An analytic study of applying miller cycle to reduce nox emission from petrol engine

    OpenAIRE

    Wang, Yaodong; Lin, Lin; Roskilly, Antony P.; Zeng, Shengchuo; Huang, Jincheng; He, Yunxin; Huang, Xiaodong; Huang, Huilan; Wei, Haiyan; Li, Shangping; Yang, J

    2007-01-01

    An analytic study of applying miller cycle to reduce nox emission from petrol engine correspondence: Corresponding author. Tel.: +0044 191 2223522; fax: +0044 191 2225491. (Wang, Yaodong) (Wang, Yaodong) School of Marine Science and Technology, Newcastle University - Newcastle upon Tyne--> , NE1 7RU--> - UNITED KINGDOM (Wang, Yaodong) Mechanical Engineering College, Guangxi University - Nanning--...

  5. Síndrome de Miller Fisher e neurite óptica: relato de caso

    Directory of Open Access Journals (Sweden)

    CARVALHO ALZIRA A. SIQUEIRA

    2000-01-01

    Full Text Available Descreve-se um caso de síndrome de Miller Fisher associada a neuropatia óptica desmielinizante bilateral, confirmada pelo exame de potencial evocado visual, sugerindo possível comprometimento do sistema nervoso central nessa síndrome.

  6. Out of Error: Further Essays on Critical Rationalism by David Miller

    Czech Academy of Sciences Publication Activity Database

    Parusniková, Zuzana

    Doetinchem : Springer, 2009 - (Parusnikova, Z.; Cohen, R.), s. 417-423 ISBN 978-1-4020-9337-1. - (Boston Studies in the Philosophy of Science. 272). [Rethinking Popper. Praha (CZ), 10.09. 2007 -14.09. 2007 ] Institutional research plan: CEZ:AV0Z90090514 Keywords : Miller * falsification * logic * induction Subject RIV: AA - Philosophy ; Religion

  7. AVALIAÇÃO DO GANHO DO PESO DE TAMBAQUI CULTIVADO COM DIFERENTES TAXAS DE PROTEÍNAS NA ALIMENTAÇÃO

    OpenAIRE

    Raniere Garcez Costa Sousa; Gilmar Ferreira Prado; Jairo Idelfonso Guimarães Pyñeiro; Eloi Bispo Bezerra Neto

    2016-01-01

    O presente estudo ocorreu no período de setembro a dezembro de 2014, com a finalidade de avaliar a influência do uso de rações com diferentes concentrações de proteína bruta – PB (28% e 32%), no ganho de peso do tambaqui Colossoma macropomum alimentado com essas dietas distintas. Para tal, foram analisados 500 exemplares de tambaqui com peso médio inicial de 225,33 g ± 11,31 e cultivados até a fase de abate com ≈ 1000 g, estes indivíduos foram divididos e cultivados em tanques separados. Biom...

  8. Efeito de solo previamente cultivado com plantas aromáticas na germinação e no desenvolvimento inicial de alface

    OpenAIRE

    Pereira, T.S.; Vidal, M. C.; F. V. Resende

    2015-01-01

    RESUMOO objetivo desse trabalho foi verificar o efeito do solo pré-cultivado com plantas aromáticas na germinação e no desenvolvimento inicial de plântulas de alface cv. Simpson. A pesquisa foi realizada na Embrapa Hortaliças, Brasília, em bandejas mantidas em casa de vegetação. O experimento foi conduzido em delineamento experimental inteiramente casualizado, com três repetições e onze tratamentos: solo pré-cultivado com hortelã-comum (Mentha x villosa), hortelã-brava (Mentha arvensis), hort...

  9. Atributos Físicos de um Cambissolo Cultivado e Tratado com Biofertilizante na Chapada do Apodi, Ceará

    OpenAIRE

    Thiago Leite de Alencar; Arilene Franklin Chaves; Carlos Levi Anastácio dos Santos; Raimundo Nonato de Assis Júnior; Jaedson Cláudio Anunciato Mota

    2015-01-01

    O conhecimento sobre as alterações físicas e qualidade do solo é importante para o direcionamento adequado das estratégias de manejo a serem utilizadas quando da exploração do solo por cultivos agrícolas. Este trabalho teve como objetivo avaliar os efeitos do cultivo e da aplicação de um biofertilizante, obtido a partir de esterco bovino, sobre a qualidade física de um Cambissolo cultivado com Ficus carica L., irrigado por sistema de gotejamento. Para fins de avaliação da qualidade física, fo...

  10. Design and experiment of seedling seperation device of Artemisia arborescens transplanter based on vibration mechanism%基于振动机理的藜蒿扦插机分苗机构设计与试验

    Institute of Scientific and Technical Information of China (English)

    汲文峰; 吴启明; 黄海东; 高靖博; 廖庆喜; 黄廖文

    2015-01-01

    The transplantation of Artemisia arborescens are mainly relying on artificial cuttings, the seedling separation device is a key component to achieve planting mechanization of Artemisia arborescens. In order to obtain orderly feed of Artemisia arborescens seedlings rod, a kind of seedling separation device of Artemisia arborescens transplanter based on vibration mechanism was designed in this paper. The main components of seedling separation device were: motor, frame, reset device of leaf spring, ledger plate, guide rail for seedling, seedling box, crank-rocker mechanism and transmission agent etc. At first, the device structure of seedlings was reasonably simplified to crank-slider mechanism, and the mathematical modeling was created on basis of characteristics of crank-slider mechanism. In order to achieve the best power transmission, the motion analysis of device was conducted,and the angular displacement, angular velocity, angular acceleration of coupler and rocker were obtained. The Matlab software was used to analyze the movement of the crank-slider mechanism, and then optimized the structure parameters of seedlings vibrating device. The optimization results showed that, when the coupler,rocker were 499mm and 273mm respectively, the power transmission could achieve the best results. Then, spring steel which was the key component of seedlings device was imported from Pro/E into Ansys Workbench to carry on model analysis of vibration characteristics. Model analysis results showed that, as frequency increasing, bending deflection of spring steel occurred firstly, then converted to distortion, and the superimposed vibrations which could lead to severe deformation appeared at last. Therefore, the vibration frequency should be less than 98.66 Hz, and the rigidity of upper end of spring steel should be appropriately strengthened. The crank length, vibration frequency and orbital inclination were taken as experimental factors, and then experimental studies of

  11. Miller-Dieker syndrome associated with duplication of 17p13.3 confirmed by fluorescence in situ hybridization (FISH)

    Energy Technology Data Exchange (ETDEWEB)

    Li, S.; Tuck-Muller, C.M.; Martinez, J.E. [Univ. of South Alabama, Mobile, AL (United States)] [and others

    1994-09-01

    Miller-Dieker syndrome is characterized by profound mental retardation, craniofacial abnormalities, and lissencephaly (smooth brain). Microscopic or submicroscopic deletions of the 17p13.3 region have been reported in Miller-Dieker patients. We report a patient with this syndrome in whom a duplication of the 17p13.3 region was detected by FISH. The 9-year-old female proband was referred because of features of Miller-Dieker syndrome: microcephaly, profound psychomotor retardation, seizures, characteristic facies, and lissencephaly shown by MRI studies. High-resolution G-banding failed to demonstrate an abnormality in chromosome 17. However, FISH analysis with the DNA probe (Oncor No. 5101) specific for Miller-Dieker region of chromosome 17p13.3 demonstrated duplication of this segment instead of the classic deletion. We know of no other report of Miller-Dieker syndrome associated with duplication of 17p13.3. The family study revealed normal chromosomes in both parents by cytogenetic and FISH analysis. Our investigation suggests that duplications, as well as deletions, of the 17p13.3 region are associated with the Miller-Dieker syndrome. The presence of deletions or duplications of the same chromosomal region in patients with features of Miller-Dieker syndrome suggests that its pathogenesis may be due to gene dosage effects.

  12. I teoremi di Modigliani-Miller: una pietra miliare della finanza (The theorems of Modigliani-Miller: a cornerstone of finance)

    OpenAIRE

    Marco Pagano

    2012-01-01

    The theorems of Modigliani and Miller (MM) is a cornerstone of finance for two reasons.The first is substantial and is derived from the nature of "propositions irrelevant": they identify a case in which the financial structure and dividend policy will not affect the value of firms, and in doing so give us a clear point of reference to understand instead what circumstances these decisions affect the value of firms, and why. In fact, the whole subsequent evolution of corporate finance has explo...

  13. The Effect of Replacing for Different Proportions of Roughage with Ceratozdes arborescens on the Sunite Sheep Weight Gain and Economic Benefits%华北驼绒藜替代不同比例粗饲料对苏尼特羊增重及经济效益的影响

    Institute of Scientific and Technical Information of China (English)

    王晓光; 吴江鸿; 刘亚红; 邱晓; 纳钦; 孙海莲

    2013-01-01

    试验将驼绒藜按不同精粗比配合成颗粒日粮饲喂苏尼特羊,对比分析驼绒藜日粮与苜蓿日粮、谷草日粮对羊增重的效果.结果表明,华北驼绒藜、苜蓿、谷草铡短粉碎与50%、30%精料混合制成颗粒日粮对绵羊体增重效果最好,日增重可达127 g/d;在荒漠草原区,苜蓿的高价格是限制其推广的主要原因;华北驼绒藜和谷草在30%精料水平下,与同精料水平条件下用苜蓿饲喂绵羊具有相同的增重效果,并可增加纯收入80元/只.%Ceratozdes arborescens was a considerable amount of forage resource,but the understand level of feeding value had rest on a traditional standard.So the feeding value experiment was developed in order to fully understand and utilize Ceratozdes arborescens.The experiment was conducted to feed sheep on particle diet combined by Ceratozdes arborescens in different ratio of concentrate to roughage.Then the weight gain caused by Ceratozdes arborescens diet,alfalfa diet and millet straw diet on sheep were analyzed comparatively.The results showed that the largest weight gain appeared at the particle diet which made from powder of Ceratozdes arborescens,alfalfa and millet straw mixed with 50 % and 30 % concentrated feed were the best,the daily gain was 127 g/d.In desert steppe,the primary cause of limiting alfalfa popularization was high price.In the level of 30% concentrated feed,the Ceratozdes arborescens and millet straw had the same weight gain effect as alfalfa,and could increase net income by 80 yuan per sheep.

  14. Análise de crescimento do amarílis cultivado a pleno sol

    Directory of Open Access Journals (Sweden)

    Caroline de Moura D'Andréa Mateus

    2010-08-01

    Full Text Available O cultivo de amarílis (Hippeastrum x hybridum Hort. visa, principalmente, à produção e comercialização de bulbos para exportação. Informações sobre o seu ciclo de crescimento ainda são incongruentes. Assim, foi objetivo realizar medições que possam contribuir com estudos de análise de crescimento do amarílis var. Orange Souvereign, cultivado a pleno sol, nas condições encontradas em Santo Antônio de Posse, Estado de São Paulo. O delineamento experimental empregado foi o inteiramente casualizado. Utilizaram-se plantas cultivadas em uma área de 2 ha, onde os dados foram coletados mensalmente, durante 14 meses, de forma aleatória. Para cada uma das características analisadas foram utilizadas quatro repetições de 10 plantas. A área foliar determinada ao final do experimento foi de, em média, 3.102,65 cm², tendo em vista 10 folhas por planta. O diâmetro do bulbo aumentou, gradualmente, durante todo o período de produção, finalizando aos 420 dias após plantio, com 9,15 cm em média. A massa fresca total ao final do ciclo foi de, em média, 1.050,55 g, dos quais 39% (410 g foram de massa fresca obtida pelo bulbo da forma como é comercializado (bulbo + raízes. Os índices fisiológicos da análise de crescimento (taxa de crescimento absoluto, taxa de crescimento relativo, taxa de assimilação líquida e razão de área foliar demonstraram o comportamento da planta no campo, tendo o sistema assimilatório atingido bom desempenho nas condições de cultivo. O crescimento de amarílis foi considerado satisfatório do ponto de vista comercial.

  15. Effect of Hydroalcoholic Extract of Cydonia oblonga Miller (Quince on Sexual Behaviour of Wistar Rats

    Directory of Open Access Journals (Sweden)

    Muhammad Aslam

    2014-01-01

    Full Text Available Cydonia oblonga Miller (quince is regarded as a potent libido invigorator in Tib-e-Nabvi and Unani System of Medicine. This study was carried out to evaluate the aphrodisiac activity of the hydroalcoholic extract of the fruits of Cydonia oblonga Miller (quince in Wistar rats. The extract was administered orally by gavage in the dose of 500 mg/kg and 800 mg/kg body weight per day as a single dose for 28 days. The observed parameters were mounting frequency, assessment of mating performance, and orientation activities towards females, towards the environment, and towards self. The results showed that after administration of the extract mounting frequency and the mating performance of the rats increased highly significantly P<0.01. The extract also influenced the behaviour of treated animals in comparison to nontreated rats in a remarkable manner, making them more attracted to females. These effects were observed in sexually active male Wistar rats.

  16. Nitrogen isotope fractionations in the Fischer-Tropsch synthesis and in the Miller-Urey reaction

    Science.gov (United States)

    King, C.-C.; Clayton, R. N.; Hayatsu, R.; Studier, M. H.

    1979-01-01

    Nitrogen isotope fractionations have been measured in Fischer-Tropsch and Miller-Urey reactions in order to determine whether these processes can account for the large N-15/N-14 ratios found in organic matter in carbonaceous chondrites. Polymeric material formed in the Fischer-Tropsch reaction was enriched in N-15 by only 3 per mil relative to the starting material (NH3). The N-15 enrichment in polymers from the Miller-Urey reaction was 10-12 per mil. Both of these fractionations are small compared to the 80-90 per mil differences observed between enstatite chondrites and carbonaceous chondrites. These large differences are apparently due to temporal or spatial variations in the isotopic composition of nitrogen in the solar nebula, rather than to fractionation during the production of organic compounds.

  17. Nitrogen isotope fractionations in the Fischer-Tropsch synthesis and in the Miller-Urey reaction

    International Nuclear Information System (INIS)

    Nitrogen isotope fractionations have been measured in Fischer-Tropsch and Miller-Urey reactions in order to determine whether these processes can account for the large 15N/14N ratios found in organic matter in carbonaceous chondrites. Polymeric material formed in the Fischer-Tropsch reaction was enriched in 15N by only 3 promille relative to the starting material (NH3). The 15N enrichment in polymers from the Miller-Urey reaction was 10-12 promille. Both of these fractionations are small compared to the 80-90 promille differences observed between enstatite chondrites and carbonaceous chondrites. These large differences are apparently due to temporal or spatial variations in the isotopic composition of nitrogen in the solar nebula, rather than to fractionation during the production of organic compounds. (orig.)

  18. Effect of Hydroalcoholic Extract of Cydonia oblonga Miller (Quince) on Sexual Behaviour of Wistar Rats.

    Science.gov (United States)

    Aslam, Muhammad; Sial, Ali Akbar

    2014-01-01

    Cydonia oblonga Miller (quince) is regarded as a potent libido invigorator in Tib-e-Nabvi and Unani System of Medicine. This study was carried out to evaluate the aphrodisiac activity of the hydroalcoholic extract of the fruits of Cydonia oblonga Miller (quince) in Wistar rats. The extract was administered orally by gavage in the dose of 500 mg/kg and 800 mg/kg body weight per day as a single dose for 28 days. The observed parameters were mounting frequency, assessment of mating performance, and orientation activities towards females, towards the environment, and towards self. The results showed that after administration of the extract mounting frequency and the mating performance of the rats increased highly significantly (P < 0.01). The extract also influenced the behaviour of treated animals in comparison to nontreated rats in a remarkable manner, making them more attracted to females. These effects were observed in sexually active male Wistar rats. PMID:24648836

  19. Utilization of Lavandula angustifolia Miller extracts as naturalrepellents, pharmaceutical and industrial auxiliaries

    Directory of Open Access Journals (Sweden)

    AYOE YUSUFOGLU

    2004-01-01

    Full Text Available Essential oils, absolutes and concretes were prepared from the flowers and leaves of the plant Lavandula angustifolia Miller cultivated in the Bosphorus region of Istanbul, Turkey. The difference in the chemical composition of the mentioned extracts was investigated and compared by using a combination of capillary GC-MS with the aim of offering them as repellent, pharmaceutical and industrial auxiliaries. The IR-spectra, the yields and the physico-chemical data of the extracts were also analysed.

  20. A Neural Intellectual Decoupling Control Strategy for a Power Plant Ball Miller

    Institute of Scientific and Technical Information of China (English)

    Hong Zhou; Ming-Hui Zhong

    2005-01-01

    In this paper a multivariable decoupling control algorithm for the coal-pulverizing system of a ball miller is provided. It is based on a three-neuron control mechanism and solves the problem of long delay and strong coupling in ball mill coal pulverizing systems. Our system has been used for more than a year, the principle and equipment of which have been proved effective and profitable.

  1. A Study on Daisy Miller The Tragic Fate of the Heroine and its Reasons

    Institute of Scientific and Technical Information of China (English)

    张自勉; 王明媚; 卢德美

    2014-01-01

    Daisy Miller is an 1878 novella about an American girl by Henry James;This paper, based on the textual analysis of the novel is an effort to study the tragic fate of heroine and its reason through a comparative study of it. Two common reasons of the tragic destiny will be discussed in the paper:one, the oppressive environment;the other, the hero ’s inaction.

  2. AILANTHUS ALTISSIMA (MILLER) SWINGLE: A SOURCE OF BIOACTIVE COMPOUNDS WITH ANTIOXIDANT ACTIVITY

    OpenAIRE

    Ângelo Luís,; Nuno Gil; Maria Emília Amaral,; Fernanda Domingues,; Ana Paula Coelho Duarte

    2012-01-01

    Ailanthus altissima (Miller) Swingle is a tree used in Chinese traditional medicine as a bitter aromatic drug and in the treatment of colds and gastric diseases. Previous phytochemical studies have demonstrated the presence of quassinoids in the plant, as well as indole alkaloids. The purpose of this work was to determine the phenolic, flavonoid, and total alkaloid contents of the ethanolic, methanolic, acetone, and hydroalcoholic crude extracts of A. altissima and then try to correlate them ...

  3. An unusual case of Miller Fisher syndrome presenting with proptosis and chemosis

    OpenAIRE

    Waung, Maggie W.; Singer, Mike A.

    2012-01-01

    Miller Fisher syndrome (MFS), a rare variant of Guillan-Barré syndrome, is characterized by ophthalmoplegia, ataxia, and areflexia. In addition to this classic triad, symptoms may include bulbar palsy, weakness, and sensory loss. The anti-GQ1b IgG antibody is a sensitive and specific marker for MFS; it is found in more than 90% of affected patients. We describe an unusual case of MFS that presented with dramatic bilateral proptosis and chemosis.

  4. Miller Butte 03002: a new rare iron meteorite (IID) from Antarctica

    OpenAIRE

    D'Orazio,; Folco, L.; Welten, K. C.; M. W. Caffee; Perchiazzi, N.; Rochette, P.

    2006-01-01

    The Miller Butte (MIB) 03002 iron meteorite was found during the XIX (2003-2004) Antarctic campaign of the Italian Programma Nazionale delle Ricerche in Antartide (PNRA) in northern Victoria Land (Antarctica). MIB 03002 is classified as a medium octahedrite belonging to the rare IID chemical group, and it is the first IID iron among the 30,000 specimens so far returned from Antarctica. The bulk chemistry of this m...

  5. Asset pricing and the Modigliani-Miller theorem with the spirit of capitalism

    OpenAIRE

    Jizheng Huang; Heng-fu Zou

    2011-01-01

    This paper investigates a equilibrium theory of capital asset pricing with the spirit of capitalism. It is an attempt to put together ideas from the modern finance literature and the literature on stochastic growth models. Using methods adopted in Brock (1982), an equivalent characterization of equilibrium by first-order conditions for optimal growth is investigated. We also consider the Modigliani-Miller theorem with the spirit of capitalism.

  6. Téma: David Miller o nacionalismu a globální spravedlnosti. Úvod

    Czech Academy of Sciences Publication Activity Database

    Velek, Josef

    2007-01-01

    Roč. 55, č. 2 (2007), s. 39-41. ISSN 0015-1831 Institutional research plan: CEZ:AV0Z90090514 Keywords : nationalism * cosmopolitanism * global justice * D. Miller Subject RIV: AA - Philosophy ; Religion

  7. Review: Miller, Michelle Ann (2009, Rebellion and Reform in Indonesia – Jakarta’s Security and Autonomy Policies in Aceh

    Directory of Open Access Journals (Sweden)

    Antje Missbach

    2009-01-01

    Full Text Available Review of the monograph: Miller, Michelle Ann, Rebellion and Reform in Indonesia – Jakarta’s Security and Autonomy Policies in Aceh, London/ New York: Routledge, 2009, ISBN 13: 978-0-415-45467-4, 240 pages.

  8. A polytime proof of correctness of the Rabin-Miller algorithm from Fermat's little theorem

    CERN Document Server

    Herman, Grzegorz

    2008-01-01

    Although a deterministic polytime algorithm for primality testing is now known, the Rabin-Miller randomized test of primality continues being the most efficient and widely used algorithm. We prove the correctness of the Rabin-Miller algorithm in the theory V1 for polynomial time reasoning, from Fermat's little theorem. This is interesting because the Rabin-Miller algorithm is a polytime randomized algorithm, which runs in the class RP (i.e., the class of polytime Monte-Carlo algorithms), with a sampling space exponential in the length of the binary encoding of the input number. (The class RP contains polytime P.) However, we show how to express the correctness in the language of V1, and we also show that we can prove the formula expressing correctness with polytime reasoning from Fermat's Little theorem, which is generally expected to be independent of V1. Our proof is also conceptually very basic in the sense that we use the extended Euclid's algorithm, for computing greatest common divisors, as the main wor...

  9. Comparison of Disposable and Metallic Reusable Miller Blades for Tracheal Intubation in Children

    Directory of Open Access Journals (Sweden)

    2008-01-01

    Full Text Available Laryngoscopes are the potential cause of cross-contamination between patients. A considerable way to prevent this problem is to use of disposable laryngoscope`s blades. This study was designed to evaluate laryngoscopic conditions in pediatrics with disposable and metallic Miller blades. One hundred and fifty two children scheduled for elective surgery aged 3-12 years were enrolled in this randomized, clinical trial. After induction of anesthesia, patients were randomly intubated with either disposable or metallic reusable Miller blade. During laryngoscopy and tracheal intubation, glottic view, brightness of laryngoscopic field, duration of laryngoscopy and satisfaction degree of anesthesiologists was recorded. All patients were successfully intubated. There was significant difference between disposable and metallic Miller blades with respect to brightness of laryngoscopic field. Grade I and II of laryngoscopy in metallic group was significantly different compared to disposable group (66 and 32% vs. 50 and 49%. There was no significant difference between disposable and metallic groups with respect to anesthesiologist satisfaction and duration of laryngoscopy. With respect to successful tracheal intubation of all patients in this trial and the usefulness of disposable laryngoscopes to prevent cross-contamination between patients, Topster disposable laryngoscope can be used under normal intubating conditions in pediatric patients.

  10. The Law and Economics of Cedar-Apple Rust: State Action and Just Compensation in Miller v. Schoene

    OpenAIRE

    Fischel William A.

    2007-01-01

    Miller v. Schoene approved the uncompensated destruction of cedar trees that were alternate hosts to a fungus that damaged apples but not cedars. Supreme Court Justice Harlan F. Stones opinion noted that deciding for either cedar or apple growers would amount to action by the state. Scholars have claimed that Miller marked the demise of the public/private distinction in constitutional law. This article presents historical evidence to the contrary. A widely-accepted standardhigher commercial v...

  11. Chemical Analysis of a "Miller-Type" Complex Prebiotic Broth : Part I: Chemical Diversity, Oxygen and Nitrogen Based Polymers.

    Science.gov (United States)

    Wollrab, Eva; Scherer, Sabrina; Aubriet, Frédéric; Carré, Vincent; Carlomagno, Teresa; Codutti, Luca; Ott, Albrecht

    2016-06-01

    In a famous experiment Stanley Miller showed that a large number of organic substances can emerge from sparking a mixture of methane, ammonia and hydrogen in the presence of water (Miller, Science 117:528-529, 1953). Among these substances Miller identified different amino acids, and he concluded that prebiotic events may well have produced many of Life's molecular building blocks. There have been many variants of the original experiment since, including different gas mixtures (Miller, J Am Chem Soc 77:2351-2361, 1955; Oró Nature 197:862-867, 1963; Schlesinger and Miller, J Mol Evol 19:376-382, 1983; Miyakawa et al., Proc Natl Acad Sci 99:14,628-14,631, 2002). Recently some of Miller's remaining original samples were analyzed with modern equipment (Johnson et al. Science 322:404-404, 2008; Parker et al. Proc Natl Acad Sci 108:5526-5531, 2011) and a total of 23 racemic amino acids were identified. To give an overview of the chemical variety of a possible prebiotic broth, here we analyze a "Miller type" experiment using state of the art mass spectrometry and NMR spectroscopy. We identify substances of a wide range of saturation, which can be hydrophilic, hydrophobic or amphiphilic in nature. Often the molecules contain heteroatoms, with amines and amides being prominent classes of molecule. In some samples we detect ethylene glycol based polymers. Their formation in water requires the presence of a catalyst. Contrary to expectations, we cannot identify any preferred reaction product. The capacity to spontaneously produce this extremely high degree of molecular variety in a very simple experiment is a remarkable feature of organic chemistry and possibly prerequisite for Life to emerge. It remains a future task to uncover how dedicated, organized chemical reaction pathways may have arisen from this degree of complexity. PMID:26508401

  12. Chemical Analysis of a "Miller-Type" Complex Prebiotic Broth. Part I: Chemical Diversity, Oxygen and Nitrogen Based Polymers

    Science.gov (United States)

    Wollrab, Eva; Scherer, Sabrina; Aubriet, Frédéric; Carré, Vincent; Carlomagno, Teresa; Codutti, Luca; Ott, Albrecht

    2016-06-01

    In a famous experiment Stanley Miller showed that a large number of organic substances can emerge from sparking a mixture of methane, ammonia and hydrogen in the presence of water (Miller, Science 117:528-529, 1953). Among these substances Miller identified different amino acids, and he concluded that prebiotic events may well have produced many of Life's molecular building blocks. There have been many variants of the original experiment since, including different gas mixtures (Miller, J Am Chem Soc 77:2351-2361, 1955; Oró Nature 197:862-867, 1963; Schlesinger and Miller, J Mol Evol 19:376-382, 1983; Miyakawa et al., Proc Natl Acad Sci 99:14,628-14,631, 2002). Recently some of Miller's remaining original samples were analyzed with modern equipment (Johnson et al. Science 322:404-404, 2008; Parker et al. Proc Natl Acad Sci 108:5526-5531, 2011) and a total of 23 racemic amino acids were identified. To give an overview of the chemical variety of a possible prebiotic broth, here we analyze a "Miller type" experiment using state of the art mass spectrometry and NMR spectroscopy. We identify substances of a wide range of saturation, which can be hydrophilic, hydrophobic or amphiphilic in nature. Often the molecules contain heteroatoms, with amines and amides being prominent classes of molecule. In some samples we detect ethylene glycol based polymers. Their formation in water requires the presence of a catalyst. Contrary to expectations, we cannot identify any preferred reaction product. The capacity to spontaneously produce this extremely high degree of molecular variety in a very simple experiment is a remarkable feature of organic chemistry and possibly prerequisite for Life to emerge. It remains a future task to uncover how dedicated, organized chemical reaction pathways may have arisen from this degree of complexity.

  13. Human radiation studies: Remembering the early years. Oral history of radiologist Earl R. Miller, M.D., August 9 and 17, 1994

    International Nuclear Information System (INIS)

    Dr. Earl R. Miller was interviewed by representatives of US DOE Office of Human Radiation Research (OHRE). The interview covers Dr. Miller's involvement with the Manhattan Engineer District, with total body irradiation, and heavy-ion therapy. Dr. Miller's remembrances include wartime work on radiation exposure, Joe Hamilton, Neutron Therapy research, means of obtaining isotopes, consent forms, infinite laminograms, invention of a baby holder to alleviate exposure of radiological technicians in diagnostic procedures involving infants, and several personages

  14. Lee Miller à travers la Roumanie, l’appareil photo à la main (1946

    Directory of Open Access Journals (Sweden)

    Adrian-Silvan Ionescu

    2012-01-01

    Full Text Available A former model and fashion photographer turned war photographer, Lee Miller visited Romania twice, in 1938 and 1946 respectively. After her second visit she published her impressions and pictures, under the title of Roumania, in Vogue magazine. Besides the published material there are her manuscripts from The Lee Miller Achives at Farley Farm House, East Sussex, England, on which this paper is based. She crossed the border coming from Hungary in early February 1946. Heading for Sibiu her car, a Chevrolet Sedan, slipping on the ice-covered road, stopped on a snowbank far off in the ditch. While looking for help in the nearby village she and her companions left the car unguarded to discover it plundered of everything, wheels included.On a Sunday afternoon she had the privilege of being received by King Mihai I and Queen Mother Elena with whom she talked exstensively. She also took magnificent pictures with the Royal Family in the imposing Peleş Castle. At Sinaia, „the summer capital of Roumania” she had also the opportunity to portray Dinu Brătianu and Iuliu Maniu, the two elderly statesmen. Maniu was surrounded by friends and party members, among whom was young Corneliu Coposu, his private secretary.Moving to Bucharest, she met old friends such as Harri Brauner and his wife, Lena Constante, with whom she wandered through the country eight years ago. Lena and Elena Pătrășcanu, wife of Lucrețiu Pătrășcanu, Minister of Justice, have started a successful marionette theatre where Lee took nice pictures. Other were taken on the streets, with peasants, street vendors and their customers. Harri took her to a bistro where they met Maria Lătărețu, the celebrating folk singer whom Brauner recorded many times. They enjoyed her songs. Suffering from fibrositis, Lee Miller undertook a peculiar treatment in a gypsy village where the inhabitants were dancing bears trainers. She was massaged by a bear weighing about 300 pounds while Brauner took

  15. OPTIMIZATION OF MICROWAVE AND AIR DRYING CONDITIONS OF QUINCE (CYDONIA OBLONGA, MILLER) USING RESPONSE SURFACE METHODOLOGY

    OpenAIRE

    Cem Baltacioglu

    2015-01-01

    Effects of slice thickness of quince (Cydonia oblonga Miller) , microwave incident power and air drying temperature on antioxidant activity and total phenolic content of quince were investigated during drying in microwave and air drying. Optimum conditions were found to be: i) for microwave drying, 285 W and 4.14 mm thick (maximum antioxidant activity) and 285 W and 6.85 mm thick (maximum total phenolic content), and ii) for air drying, 75 ºC and 1.2 mm thick (both maximum antioxidant activit...

  16. CHIRIMOYA (Annona cherimola Miller), FRUTAL TROPICAL Y SUB-TROPICAL DE VALORES PROMISORIOS

    OpenAIRE

    María Esther González Vega

    2013-01-01

    Los frutos de anonáceas, entre ellos la chirimoya, presentan altas cualidades organolépticas, digestivas y nutritivas, además, como especie, la Annona cherimola Miller también es apreciada por sus propiedades medicinales e industriales tanto en el mercado nacional como internacional. Sin embargo, aún existe desconocimiento sobre sus características y potencialidades como planta cultivada. En el presente trabajo se exponen informaciones sobre esta especie y se discute la importancia de la expa...

  17. A case of Miller Fisher syndrome during preoperative chemotherapy for breast cancer

    OpenAIRE

    Taki, Yumiko; Ide, Yoshimi; Tajima, Shogo; Hosokawa, Yuko; Matsunuma, Ryoichi; Terada, Tatsuhiro; Waki, Michihiko; Ogura, Hiroyuki; Shiiya, Norihiko

    2015-01-01

    A 53-year-old woman with breast cancer received FEC treatment (5FU: 500 mg/m2, epirubicin: 100 mg/m2, and cyclophosphamide: 500 mg/m2) every 3 weeks as preoperative chemotherapy. Fifteen days after her third cycle of FEC, she developed a cold. Diplopia occurred 4 days after developing the cold, and progressive paresthesia of the hands and weakness of the limbs occurred. She had ophthalmoplegia, ataxia, and are flexia and was diagnosed with Miller Fisher Syndrome (MFS). The cause of MFS during...

  18. Involvement of NF-ΚB and HSP70 signaling pathways in the apoptosis of MDA-MB-231 cells induced by a prenylated xanthone compound, α-mangostin, from Cratoxylum arborescens

    Directory of Open Access Journals (Sweden)

    Ibrahim MY

    2014-11-01

    Full Text Available Mohamed Yousif Ibrahim,1 Najihah Mohd Hashim,1 Syam Mohan,2 Mahmood Ameen Abdulla,3 Siddig Ibrahim Abdelwahab,2 Behnam Kamalidehghan,1 Mostafa Ghaderian,1,4 Firouzeh Dehghan,1,5 Landa Zeenelabdin Ali,1 Hamed Karimian,1 Maizatulakmal Yahayu,6 Gwendoline Cheng Lian Ee,7 Abdoreza Soleimani Farjam,8 Hapipah Mohd Ali9 1Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia; 2Medical Research Centre, Jazan University, Jazan, Saudi Arabia; 3Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia; 4Epigenetics Lab, HIR Building, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia; 5Department of Physiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia; 6Department of Bioproduct Research and Innovation, Institute of Bioproduct Development (IBD, Universiti Teknologi Malaysia, UTM Johor Bahru, Johor, Malaysia; 7Department of Chemistry, Faculty of Science, Universiti Putra Malaysia (UPM, Serdang, Selangor, Malaysia; 8Institute of Tropical Agriculture, Universiti Putra Malaysia (UPM, Serdang, Selangor, Malaysia; 9Department of Chemistry, University of Malaya, Kuala Lumpur, Malaysia Background: Cratoxylum arborescens has been used traditionally in Malaysia for the treatment of various ailments. Methods: α-Mangostin (AM was isolated from C. arborescens and its cell death mechanism was investigated. AM-induced cytotoxicity was observed with the 3-(4,5-dimethylthiazol-2-yl-2,5-diphenyltetrazolium bromide (MTT assay. Acridine orange/propidium iodide staining and annexin V were used to detect cells in early phases of apoptosis. High-content screening was used to observe the nuclear condensation, cell permeability, mitochondrial membrane potential, and cytochrome c release. The role of caspases-3/7, -8, and -9, reactive oxygen species, Bcl-2 and Bax expression, and cell cycle arrest were also investigated. To determine

  19. I teoremi di Modigliani-Miller: una pietra miliare della finanza (The theorems of Modigliani-Miller: a cornerstone of finance

    Directory of Open Access Journals (Sweden)

    Marco Pagano

    2012-04-01

    Full Text Available The theorems of Modigliani and Miller (MM is a cornerstone of finance for two reasons.The first is substantial and is derived from the nature of "propositions irrelevant": they identify a case in which the financial structure and dividend policy will not affect the value of firms, and in doing so give us a clear point of reference to understand instead what circumstances these decisions affect the value of firms, and why. In fact, the whole subsequent evolution of corporate finance has explored the consequences of removing the assumptions of MM. The second reason for the importance of the fundamental theorems of MM is methodological: they have been demonstrated with a reasoning based arbitrage, which has set a precedent not only in the area of ​​corporate finance but also in that of the determination of prices of financial securities. I teoremi di Modigliani e Miller (MM sono una pietra miliare della finanza per due ragioni. La prima è sostanziale e deriva dalla loro natura di “proposizioni di irrilevanza”: essi individuano un caso in cui la struttura finanziaria e la politica dei dividendi non influiscono sul valore delle imprese, e così facendo ci danno un chiaro punto di riferimento per capire in quali circostanze invece queste decisioni influiscono sul valore delle imprese, e perché. In effetti, l’intera evoluzione successiva della finanza aziendale ha esplorato le conseguenze della rimozione delle ipotesi di MM. La seconda ragione dell’importanza fondamentale dei teoremi di MM è di tipo metodologico: essi sono stati dimostrati con un ragionamento basato sull’arbitraggio, il che ha stabilito un precedente non solo nel campo della finanza aziendale ma anche e soprattutto in quello della determinazione dei prezzi dei titoli finanziari.  JEL Codes: G32, G35Keywords: struttura finanziaria; politica dei dividendi; valore delle imprese

  20. Development of the wind farm at Mount Miller : Main report (final version)

    International Nuclear Information System (INIS)

    Energie Eolienne du Mont Miller Inc. is a joint venture comprised of 3Ci Inc. and Northland Power Inc. which intends to develop a wind farm at Mount Miller near Murdochville, Quebec. The proposed wind turbine array includes 36 turbines for a total capacity of 54 megawatts (MW). The cost of the project has been estimated at $90 million. A contract has already been signed with Hydro-Quebec to buy the electricity. Integration studies are progressing well. This document contains the environmental impact study report, along with a general description of the environment and an explanation of the proposed project. The various impacts of the proposed project were examined, both from an environmental and a socio-economic perspective. It was determined that any residual negative impacts are not substantial. The visual impacts are considered to be negligible in two of the three strategic observation areas, and are considered moderate in the third. Although noise will increase very slightly in the inhabited neighbourhood of Murdochville, it will remain within the prescribed limits. According to studies conducted in Europe and the United States, birds are not likely to be distressed. 3 refs., 40 tabs., 19 figs

  1. Compensation of the detector capacitance presented to charge-sensitive preamplifiers using the Miller effect

    Energy Technology Data Exchange (ETDEWEB)

    Kwon, Inyong, E-mail: iykwon@umich.edu [University of Michigan, Ann Arbor, MI (United States); Kang, Taehoon, E-mail: thnkang@umich.edu [University of Michigan, Ann Arbor, MI (United States); Wells, Byron T., E-mail: wells@galtresearch.com [Galt LLC, Ypsilanti, MI (United States); D’Aries, Lawrence J., E-mail: lawrence.j.daries.civ@mail.mil [Picatinny Arsenal, Rockaway Township, NJ (United States); Hammig, Mark D., E-mail: hammig@umich.edu [University of Michigan, Ann Arbor, MI (United States)

    2015-06-01

    This paper describes an integrated circuit design for a modified charge-sensitive amplifier (CSA) that compensates for the effect of capacitance presented by nuclear radiation detectors and other sensors. For applications that require large area semiconductor detectors or for those semiconductor sensors derived from high permittivity materials such as PbSe, the detector capacitance can degrade the system gain and bandwidth of a front-end preamplifier, resulting in extended rise times and attenuated output voltage signals during pulse formation. In order to suppress the effect of sensor capacitance, we applied a bootstrap technique into a traditional CSA. The technique exploits the Miller effect by reducing the effective voltage difference between the two sides of a radiation detector which minimizes the capacitance presented to the differential common-source amplifier. This new configuration is successfully designed to produce effective gain even at high detector capacitance. The entire circuit, including a core CSA with feedback components and a bootstrap amplifier, are implemented in a 0.18 μm CMOS process with a 3.3 V supply voltage. - Highlights: • A modified CSA was implemented for detector capacitance compensation. • Increasing detector capacitance degrades gain and rise time. • A bootstrap amplifier exploiting the Miller effect is described. • It allows using large area radiation sensors for high radiation-interaction rates. • Intensive noise analyses show that SNR is much better with the technique.

  2. How James Kept the Pace?; A Look into the Organic Unity of Daisy Miller

    Directory of Open Access Journals (Sweden)

    Sina Movaghati

    2015-12-01

    Full Text Available Many Critics believe that Henry James has set the definitive standards of modern fiction writing. Undoubtedly his groundbreaking article “The Art of fiction,” which published for the first time in 1884, has a major contribution in developing the theories of fiction writing. The term Organic Unity has derived from a major Formalist Critic, Cleanth Brooks. Both James and Brooks believed that a critic should approach a text as an organic whole. So, in this article we try to pinpoint the ideas which James and Brooks claimed in their essays and see how these ideas conform to one of James’ well-known stories, Daisy Miller. We want to observe that how James develops and shapes his story around the central theme. Furthermore, we want to investigate that are there any literary devices embedded in the text of the story which help James to deliver his fiction with artistry?Keywords: James, Cleanth Brooks, Organic Unity, The Art of Fiction, Daisy Miller

  3. Compensation of the detector capacitance presented to charge-sensitive preamplifiers using the Miller effect

    International Nuclear Information System (INIS)

    This paper describes an integrated circuit design for a modified charge-sensitive amplifier (CSA) that compensates for the effect of capacitance presented by nuclear radiation detectors and other sensors. For applications that require large area semiconductor detectors or for those semiconductor sensors derived from high permittivity materials such as PbSe, the detector capacitance can degrade the system gain and bandwidth of a front-end preamplifier, resulting in extended rise times and attenuated output voltage signals during pulse formation. In order to suppress the effect of sensor capacitance, we applied a bootstrap technique into a traditional CSA. The technique exploits the Miller effect by reducing the effective voltage difference between the two sides of a radiation detector which minimizes the capacitance presented to the differential common-source amplifier. This new configuration is successfully designed to produce effective gain even at high detector capacitance. The entire circuit, including a core CSA with feedback components and a bootstrap amplifier, are implemented in a 0.18 μm CMOS process with a 3.3 V supply voltage. - Highlights: • A modified CSA was implemented for detector capacitance compensation. • Increasing detector capacitance degrades gain and rise time. • A bootstrap amplifier exploiting the Miller effect is described. • It allows using large area radiation sensors for high radiation-interaction rates. • Intensive noise analyses show that SNR is much better with the technique

  4. ZACK SNYDER, FRANK MILLER AND HERODOTUS: THREE TAKES ON THE 300 SPARTANS

    Directory of Open Access Journals (Sweden)

    G.N. Murray

    2012-03-01

    Full Text Available The heroic defence of the Greeks at the battle of Thermopylae in 480 BC, in particularly the 300 Spartans who stood to the last man against the much larger Persian force, prompted comic book writer and illustrator Frank Miller to retell this story from a purely Spartan perspective. This version was retold once again when director Zack Snyder created a filmed version of the graphic novel named 300. Despite the film’s achievements at the box office, it was attacked for being, amongst others, historically incorrect and ideologically biased. In the graphic novel Frank Miller tells the tale of the battle at Thermopylae through the eyes of a Spartan warrior who bore the responsibility of spreading their tale so that the Spartans’ sacrifice might compel other Greek city-states to stand together against the Persians. Therefore the graphic novel and especially the film are drenched with Spartan superiority and Persian inferiority. Despite the inaccuracies and ideological bias, there are a few moments in the graphic novel and film that are notably historically correct.

  5. Teorema Modigliani-Miller, imperfetta informazione e meccanismo di trasmissione della politica monetaria

    Directory of Open Access Journals (Sweden)

    G. BERTOCCO

    2013-10-01

    Full Text Available The work first aims to show that the Modigliani-Miller theorem can not constitute the theoretical foundation of traditional analysis. It then analyses the consequences of the presence of imperfect information on the characteristics of the transmission mechanism of monetary policy. It is observed that the dependence on commercial bank credit is not a sufficient condition for operating a transmission mechanism based on the control of the amount of credit that is different from the traditional mechanism. If the banking system could isolate the supply of credit through central bank decisions, the effects of monetary policy would be transmitted through interest rates, as established traditional analysis. The author shows that the characteristics of the transmission mechanism of monetary policy do not depend only on the presence of imperfect information, but also on the assumptions regarding the determination of the supply of credit.  JEL Codes: E52, G14Keywords: Modigliani-Miller theorem, monetary policy, transition mechanism, credit

  6. Miller-Fisher Syndrome: Are Anti-GAD Antibodies Implicated in Its Pathophysiology?

    Science.gov (United States)

    Papagiannopoulos, Sotirios; Theodoridou, Varvara; Argyropoulou, Ourania; Bostantjopoulou, Sevasti

    2016-01-01

    Miller-Fisher syndrome (MFS) is considered as a variant of the Guillain-Barre syndrome (GBS) and its characteristic clinical features are ophthalmoplegia, ataxia, and areflexia. Typically, it is associated with anti-GQ1b antibodies; however, a significant percentage (>10%) of these patients are seronegative. Here, we report a 67-year-old female patient who presented with the typical clinical features of MFS. Workup revealed antibodies against glutamic acid decarboxylase (GAD) in relatively high titers while GQ1b antibodies were negative. Neurological improvement was observed after intravenous gamma globulin and follow-up examinations showed a continuous clinical amelioration with simultaneous decline of anti-GAD levels which finally returned to normal values. This case indicates that anti-GAD antibodies may be associated with a broader clinical spectrum and future studies in GQ1b-seronegative patients could determine ultimately their clinical and pathogenetic significance in this syndrome. PMID:27239355

  7. Miller Fisher syndrome: a rare variant of Guillain-Barré syndrome

    Directory of Open Access Journals (Sweden)

    Luciana Pinto Bandeira

    2012-12-01

    Full Text Available This report describes the case of a 39-year-old male patient who presented to the emergency room with complaints of impaired balance, diplopia, and nasal voice. The patient had a history of upper respiratory tract infection. The initial physical examination revealed ataxia, ophthalmoplegia, and areflexia, which are consistent with the classic triad of Miller Fisher syndrome, considered a benign variant of Guillain-Barré syndrome. The patient developed peripheral facial paralysis during hospitalization. He underwent a treatment with immunoglobulin for five days, resulting in near complete resolution of the ataxia. However, the ophthalmoplegia and areflexia persisted. He was discharged to outpatient follow-up.

  8. Miller-Fisher Syndrome: Are Anti-GAD Antibodies Implicated in Its Pathophysiology?

    Directory of Open Access Journals (Sweden)

    Ioannis E. Dagklis

    2016-01-01

    Full Text Available Miller-Fisher syndrome (MFS is considered as a variant of the Guillain-Barre syndrome (GBS and its characteristic clinical features are ophthalmoplegia, ataxia, and areflexia. Typically, it is associated with anti-GQ1b antibodies; however, a significant percentage (>10% of these patients are seronegative. Here, we report a 67-year-old female patient who presented with the typical clinical features of MFS. Workup revealed antibodies against glutamic acid decarboxylase (GAD in relatively high titers while GQ1b antibodies were negative. Neurological improvement was observed after intravenous gamma globulin and follow-up examinations showed a continuous clinical amelioration with simultaneous decline of anti-GAD levels which finally returned to normal values. This case indicates that anti-GAD antibodies may be associated with a broader clinical spectrum and future studies in GQ1b-seronegative patients could determine ultimately their clinical and pathogenetic significance in this syndrome.

  9. Operations Manager Tim Miller checks out software for the Airborne Synthetic Aperature Radar (AIRSAR

    Science.gov (United States)

    1998-01-01

    Tim Miller checks out software for the Airborne Synthetic Aperture Radar (AIRSAR). He was the AIRSAR operations manager for NASA's Jet Propulsion Laboratory. The AIRSAR produces imaging data for a range of studies conducted by the DC-8. NASA is using a DC-8 aircraft as a flying science laboratory. The platform aircraft, based at NASA's Dryden Flight Research Center, Edwards, Calif., collects data for many experiments in support of scientific projects serving the world scientific community. Included in this community are NASA, federal, state, academic and foreign investigators. Data gathered by the DC-8 at flight altitude and by remote sensing have been used for scientific studies in archeology, ecology, geography, hydrology, meteorology, oceanography, volcanology, atmospheric chemistry, soil science and biology.

  10. Aleksei Miller ja "uus impeeriumi ajalugu" / Toomas Karjahärm

    Index Scriptorium Estoniae

    Karjahärm, Toomas, 1944-

    2011-01-01

    Arvustus: Миллер, Алексей. Империя Романовых и национализм : эссе по методологии исторического исследования. Москва : Новое Литературное Обозрение, 2008. (Historica Rossica). Polüetnilisi impeeriume eelistab Miller käsitleda mitte regionaalsete, vaid situatiivsete kategooriatega

  11. OPTIMIZATION OF MICROWAVE AND AIR DRYING CONDITIONS OF QUINCE (CYDONIA OBLONGA, MILLER USING RESPONSE SURFACE METHODOLOGY

    Directory of Open Access Journals (Sweden)

    Cem Baltacioglu

    2015-03-01

    Full Text Available Effects of slice thickness of quince (Cydonia oblonga Miller , microwave incident power and air drying temperature on antioxidant activity and total phenolic content of quince were investigated during drying in microwave and air drying. Optimum conditions were found to be: i for microwave drying, 285 W and 4.14 mm thick (maximum antioxidant activity and 285 W and 6.85 mm thick (maximum total phenolic content, and ii for air drying, 75 ºC and 1.2 mm thick (both maximum antioxidant activity and total phenolic content. Drying conditions were optimized by using the response surface methodology. 13 experiments were carried out considering incident microwave powers from 285 to 795 W, air temperature from 46 to 74 ºC and slice thickness from 1.2 to 6.8 mm.

  12. A Philatelic Ramble through Chemistry (by Edgar Heilbronner and Foil A. Miller)

    Science.gov (United States)

    Rabinovich, Daniel

    1998-08-01

    Wiley-VCH: New York, 1998. 268 pp. ISBN 3-906390-17-9. $200.00. A philatelic ramble? My Merriam Webster's dictionary says that a ramble is, among other things, a leisurely excursion for pleasure. I think the title of the book under review could not have been more appropriate. A Philatelic Ramble through Chemistry is, indeed, an enjoyable overview of the world of chemistry as pictured on postage stamps and other philatelic materials. More than a thousand (!) color illustrations enhance Heilbronner and Miller's idiosyncratic writing, which combines engaging historical essays with fascinating anecdotes. Although the idea of using stamps in teaching chemistry is not new (see, for example, the "Chemistry on Stamps" series in this Journal in the 1980s), the authors succeed in presenting their stories with unusual charm and wit, aimed at a broad audience, chemists and philatelists alike.

  13. I teoremi di Modigliani-Miller: una pietra miliare della finanza

    Directory of Open Access Journals (Sweden)

    Marco Pagano

    2005-06-01

    Full Text Available I teoremi di Modigliani e Miller (MM sono una pietra miliare della finanza per due ragioni.La prima è sostanziale e deriva dalla loro natura di “proposizioni di irrilevanza”: essi individuano un caso in cui la struttura finanziaria e la politica dei dividendi non influiscono sul valore delle imprese, e così facendo ci danno un chiaro punto di riferimento per capire in quali circostanze invece queste decisioni influiscono sul valore delle imprese, e perché. In effetti, l’intera evoluzione successiva della finanza aziendale ha esplorato le conseguenze della rimozione delle ipotesi di MM. La seconda ragione dell’importanza fondamentale deiteoremi di MM è di tipo metodologico: essi sono stati dimostrati con un ragionamento basato sull’arbitraggio, il che ha stabilito un precedente non solo nel campo della finanza aziendale ma anche e soprattutto in quello della determinazione dei prezzi dei titoli finanziari.

  14. Teorema Modigliani-Miller, imperfetta informazione e meccanismo di trasmissione della politica monetaria

    Directory of Open Access Journals (Sweden)

    G. BERTOCCO

    1995-09-01

    Full Text Available The work first aims to show that the Modigliani-Miller theorem can not constitute the theoretical foundation of traditional analysis. It then analyses the consequences of the presence of imperfect information on the characteristics of the transmission mechanism of monetary policy. It is observed that the dependence on commercial bank credit is not a sufficient condition for operating a transmission mechanism based on the control of the amount of credit that is different from the traditional mechanism. If the banking system could isolate the supply of credit through central bank decisions, the effects of monetary policy would be transmitted through interest rates, as established traditional analysis. The author shows that the characteristics of the transmission mechanism of monetary policy do not depend only on the presence of imperfect information, but also on the assumptions regarding the determination of the supply of credit.

  15. Biometric analysis of the intestine of the Southern Caracara (Polyborus plancus, Miller, 1777

    Directory of Open Access Journals (Sweden)

    Carime Moraes

    2007-06-01

    Full Text Available This experiment investigated the biometric parameters for the enteric tract of eight Southern Caracaras (Polyborus plancus, Miller 1777. The study was carried out on eight adult animals of both sexes (four males and four females having different ages and weights. The animals were sacrificed and dissected, and their visceral tracts were placed on a horizontal plane surface. The lengths were measured and the weights were obtained on electronic precision scales. The statistical analysis utilized was Student’s t-test with a significance level p=0.05. The results showed that the Southern Caracara possessed a duodenum and an ileum longer than those of the chicken. It was concluded that the small intestine of the Southern Caracara is relatively extensive, mainly on account of the duodenum that is similar in length to that of the goose. This bird had a vestige of the cecum that it is different to that of the chicken.

  16. A Short Study on the Validity of Miller's Theorem Applied to Transistor Amplifier High-Frequency Performance

    Science.gov (United States)

    Schubert, T. F., Jr.; Kim, E. M.

    2009-01-01

    The use of Miller's Theorem in the determination of the high-frequency cutoff frequency of transistor amplifiers was recently challenged by a paper published in this TRANSACTIONS. Unfortunately, that paper provided no simulation or experimental results to bring credence to the challenge or to validate the alternate method of determination…

  17. Detection Strategies for Malingering with the Miller Forensic Assessment of Symptoms Test: A Confirmatory Factor Analysis of Its Underlying Dimensions

    Science.gov (United States)

    Vitacco, Michael J.; Jackson, Rebecca L.; Rogers, Richard; Neumann, Craig S.; Miller, Holly A.; Gabel, Jason

    2008-01-01

    Two of the most widely used measures for the assessment of malingering in forensic populations are the Miller Forensic Assessment of Symptoms Test (M-FAST) and the Structured Interview of Reported Symptoms (SIRS). The underlying dimensions of the SIRS have been well established in the literature, but the structure of the M-FAST remains relatively…

  18. Johannes Miller o výzdobě Auly olomoucké univerzity v letech 1718 - 1719

    Czech Academy of Sciences Publication Activity Database

    Dolejší, Kateřina

    -, č. 294 (2007), s. 81-84. ISSN 1212-1134 R&D Projects: GA ČR GA408/03/0059 Institutional research plan: CEZ:AV0Z80330511 Keywords : Baroque wall painting * Olomouc University * Johannes Miller Subject RIV: AL - Art, Architecture, Cultural Heritage

  19. Caracterização farmacognóstica da droga e do extrato fluido de Persea americana Miller

    OpenAIRE

    Marcia Aparecida Gutierrez; Fernando de Oliveira

    1989-01-01

    As folhas de Persea americana Miller, conhecidas vulgarmente como folhas-de-abacate, foram caracterizadas morfológica e cromatograficamente. A presenga de anetol, estragol e cariofileno foram pesquisadas na droga brasileira. O extrato fluido foi caracterizado através de sua fração flavonóidica.

  20. A CLINICAL ASSESSMENT OF MACINTOSH BLADE, MILLER BLADE AND KING VISIONTM VIDEOLARYNGOSCOPE FOR LARYNGEAL EXPOSURE AND DIFFICULTY IN ENDOTRACHEAL INTUBATION

    Directory of Open Access Journals (Sweden)

    Apoorva Mahendera

    2016-03-01

    Full Text Available CONTEXT Previous studies suggest glottic view is better achieved with straight blades while tracheal intubation is easier with curved blades and videolaryngoscope is better than conventional laryngoscope. AIMS Comparison of conventional laryngoscope (Macintosh blade and Miller blade with channelled videolaryngoscope (King Vision TM with respect to laryngeal visualisation and difficulty in endotracheal intubation. SETTINGS AND DESIGN This prospective randomised comparative study was conducted at a tertiary care hospital (in ASA I and ASA II patients after approval from the Institutional Ethics Committee. METHODS We compared Macintosh, Miller, and the King VisionTM videolaryngoscope for glottic visualisation and ease of tracheal intubation. Patients undergoing elective surgeries under general anaesthesia requiring endotracheal intubation were randomly divided into three groups (N=180. After induction of anaesthesia, laryngoscopy was performed and trachea intubated. We recorded visualisation of glottis (Cormack-Lehane grade-CL, ease of intubation, number of attempts, need to change blade, and need for external laryngeal manipulation. STATISTICAL ANALYSIS Demographic data, Mandibular length, Mallampati classification were compared using ANOVA, Chi-square test, Kruskal-Wallis Test, where P value <0.005 is statically significant. RESULTS CL grade 1 was most often observed in King Vision -TM VL group (90% which is followed by Miller (28.33%, and Macintosh group (15%. We found intubation was to be easier (grade 1 with King Vision -TM VL group (73.33%, followed by Macintosh (38.33%, and Miller group (1.67%. External manipulation (BURP was needed more frequently in patients in Miller group (71.67%, followed by Macintosh (28.33% and in King Vision -TM VL group (6.67%. All (100% patients were intubated in the 1 st attempt with King Vision -TM VL group, followed by Macintosh group (90% and Miller group (58.33%. CONCLUSIONS In patients with normal airway

  1. Características fisicoquímicas y contenido de carotenoides en maíces (Zea mays L.) amarillos cultivados en el Estado de México

    OpenAIRE

    Yolanda Salinas Moreno; Salvador Saavedra Arellano; Jesús Soria Ruíz; Edgar Espinosa Trujillo

    2008-01-01

    En México hay pocos estudios referentes a la caracterización de los maíces amarillos cultivados en las diferentes regiones del país. Los objetivos fueron caracterizar los maíces amarillos cultivados en el Estado de México en función de sus propiedades fisico-químicas y el contenido de carotenoides y determinar la relación de este pigmento con el color de grano y harina. Para ello se analizaron 19 materiales criollos colectados durante 2005 y 2006, cuatro muestras de la variedad mejorada de po...

  2. Qualidade do tomate de mesa cultivado nos sistemas convencional e orgânico Quality of tomatoes cultivated in the organic and conventional cropping systems

    OpenAIRE

    Sila Mary Rodrigues Ferreira; Renato João Sossela de Freitas; Elisa Noemberg Lazzari Karkle; Diomar Augusto de Quadros; Lindamir Tomczak Tullio; Jair José de Lima

    2010-01-01

    A presença dos produtos orgânicos nas gôndolas das grandes redes de supermercados indica que existe um potencial de mercado para esses produtos, no entanto poucas são as informações técnico-científicas sobre eles. Em razão disso, o presente trabalho teve como objetivo determinar a qualidade do tomate de mesa cultivado nos sistemas convencional (SC) e orgânico (SO) comercializado na Região Metropolitana de Curitiba. As amostras foram avaliadas pela massa, peso específico, cinzas, sólidos totai...

  3. Produção do milho híbrido 30F35HR cultivado na savana de Roraima em diferentes densidades de plantio.

    OpenAIRE

    Valle, Ítalo César Aguiar; Alves, José Maria Arcanjo; Silva, Luana dos Santos; Uchôa, Sandra Cátia Pereira; Albuquerque, José de Anchieta Alves de; Silva, Deyse Cristina Oliveira da

    2013-01-01

    A densidade de plantas pode maximizar o potencial produtivo de variedades de milho melhoradas, uma vez que, em geral, estas apresentam porte mais baixo e arquitetura foliar mais ereta. Objetivou-se com esse trabalho avaliar o efeito de três densidades de plantios nos componentes de produção do milho transgênico híbrido Pioneer 30F35HR cultivado na savana de Roraima. O experimento foi conduzido na área experimental do Centro de Ciências Agrárias da Universidade Federal de Roraima, no Campus do...

  4. Nuevas cepas de duganella aisladas de la rizosfera de olivo silvestre y cultivado y su uso en la producción de violaceína

    OpenAIRE

    Landa, Blanca B.; Aranda Ocampo, Sergio; Montes Borrego, Miguel; Castillo, Pablo

    2010-01-01

    [ES] La presente invención se refiere a unas cepas bacterianas de Duganella spp. obtenidas de la rizosfera de olivos silvestres y cultivados. Preferentemente las cepas son CECT 7779, CECT 7780 y CECT 7781 y más preferentemente la cepa bacteriana es CECT 7780. Además, la presente invención se refiere a sus combinaciones con otros microorganismos y a las composiciones que comprenden los productos anteriores, así como a un procedimiento para la producción de violaceína y a la violaceína produ...

  5. Nuevas cepas de duganella aisladas de la rizosfera de olivo silvestre y cultivado y su uso en la producción de violaceína

    OpenAIRE

    Landa, Blanca B.; Aranda Ocampo, Sergio; Montes Borrego, Miguel; Castillo Castillo, Miguel

    2010-01-01

    La presente invención se refiere a unas cepas bacterianas de Duganella spp. obtenidas de la rizosfera de olivos silvestres y cultivados. Preferentemente las cepas son CECT 7779, CECT 7780 y CECT 7781 y más preferentemente la cepa bacteriana es CECT 7780. Además, la presente invención se refiere a sus combinaciones con otros microorganismos y a las composiciones que comprenden los productos anteriores, así como a un procedimiento para la producción de violaceína y a la violaceína producida par...

  6. ENRAIZAMENTO IN VITRO DE RAMOS DE MAMOEIRO ‘TAINUNG 01’ CULTIVADOS SOB LUZ e ESCURO/LUZ

    Directory of Open Access Journals (Sweden)

    Omar Schmildt

    2012-12-01

    Full Text Available This work aimed to evaluate two culture conditions in vitro in rhizogenic response of micropropagated branches of papaya tree (Carica papaya L. 'Tainung 01'. The branches submitted to rooting were obtained in the fourth subculture in the midst of multiplication and cultivated in culture medium of Murashige and Skoog (1962, supplemented with sucrose at 30 g L-1, and IBA at 0.2 mg L-1solidified with agar at 7g L-1. Were used 40 branches but 20 of these branches were for 7 days starting in the dark and a further 23 days under fluorescentlight in providing 22.8 µmol m-2s-1flows of photosynthetic photons and 16 hours of photoperiod and temperaturecontrolled 27 2oC. The other 20 branches remained under light for 30 days under specified conditions. At the end of this period were evaluated the percentage of rooted branches, the growth of the branches, the length of the largest leaf and the mass of callus at the base of the branches. The means were analyzed by t-test at 5% probability. By the results obtained only for the variable mass of callus was statistically significant difference being that there was more callus formation at the base of branches grown in the dark for seven days early. It is concluded that the roots using IBA at 0.2 mg L-1can be done under light or dark / light. However, for reasons of energy saving, it is recommended that the culture condition in the dark / light.Esse trabalho teve como objetivo avaliar duas condições de cultivo na resposta rizogênica in vitro de ramos micropropagados de mamoeiro (Carica papaya L. ‘Tainung 01’. Os ramos submetidos ao anraizamento foram obtidos no quarto subcultivo em meio de multiplicação e cultivados em meio de Murashige e Skoog (1962, suplementado com sacarose a 30 g L-1, e AIB a 0,2 mg L-1solidificado com 7 g L-1de Agar. Foram usados 40 ramos sendo que 20 destes estiveram por sete dias iniciais no escuro e mais 23 dias seguintes na luz sob lâmpadas fluorescentes fornecendo 22,8 µmol

  7. Divergência entre genótipos de soja, cultivados em várzea irrigada

    Directory of Open Access Journals (Sweden)

    Elonha Rodrigues dos Santos

    2011-12-01

    Full Text Available A divergência genética é um dos mais importantes parâmetros avaliados por melhoristas de plantas, na fase inicial de um programa de melhoramento genético. Diante disso, objetivou-se com este trabalho avaliar, por meio de técnicas multivariadas, a divergência genética entre 48 genótipos de soja, cultivados em várzea irrigada no Estado do Tocantins, com o intuito de identificar as combinações mais promissoras para produzir recombinações superiores, tanto destinados a produção de óleo e farelo, como do grupo especial, destinados ao consumo humano. O experimento foi conduzido no município de Formoso do Araguaia, TO, em cultivo de várzea irrigada na entressafra de 2010. O delineamento experimental foi o de blocos ao acaso, com quatro repetições. Verificou-se variabilidade entre os genótipos testados. Os resultados dos métodos de agrupamento de Tocher, UPGMA e Variáveis Canônicas foram concordantes entre si e detectaram quatro grupos distintos. As seguintes hibridações são promissoras para produção de grãos de soja destinados a óleo e farelo: M-Soy 8766, M-Soy 9144, A 7002 e M-Soy 9056 com Amaralina e cruzamentos entre M-Soy 8766, M-Soy 9144 e Amaralina com BRSMG 790A, BRS 257, BRS 216 e BRS 213 e são indicados visando a genótipos de soja especiais para alimentação humana.

  8. Mrs. Miller's Evolution in Teaching Science as Inquiry: A Case Study of a Teacher's Change in Responsiveness

    Science.gov (United States)

    Lineback, Jennifer Evarts

    Calls for reform-based science instruction have highlighted inquiry as a critical component in science education (e.g. National Research Council [NRC], 1996, 2000, 2007). To date, there has been little research describing how teachers' classroom practice changes as they implement inquiry-based instruction. This study characterizes how an experienced elementary school teacher changed with respect to her responsiveness to student thinking (i.e. the degree to which she followed up on her students' ideas) as she implemented three iterations of an inquiry-based module on the water cycle. This research was guided by two overarching questions: (1) How can a teacher's responsiveness to student thinking be characterized?; and (2) How does one teacher, Mrs. Miller, change with respect to her responsiveness to her students' thinking over the course of three iterations of an inquiry-based module? In order to answer these questions, two distinct, yet complementary, methods of analysis were used. Method 1. Discourse analysis of classroom dialogue led to the operationalization of the "redirection." Redirections are teacher bids to "redirect" students' attention from one locus to another and reflect differing degrees of responsiveness, according to the degree to which the teacher takes up students' ideas. Initial quantitative analyses of Mrs. Miller's redirections showed that while she did change in her responsiveness to student thinking, the change was not linear. When Mrs. Miller's highly responsive redirections were analyzed, however, she seemed more likely to use highly responsive redirections to perpetuate students' potentially productive ideas during Implementation 2 and especially during Implementation 3. Such results suggested that Mrs. Miller grew in responsiveness over time. Method 2. Phenomenological analyses of Mrs. Miller's practice provided further support of her increased responsiveness to student thinking. Mrs. Miller seemed more willing to encourage students

  9. Miller Early Childhood Sustained Home-visiting (MECSH trial: design, method and sample description

    Directory of Open Access Journals (Sweden)

    Anderson Teresa

    2008-12-01

    Full Text Available Abstract Background Home visiting programs comprising intensive and sustained visits by professionals (usually nurses over the first two years of life show promise in promoting child health and family functioning, and ameliorating disadvantage. Australian evidence of the effectiveness of sustained nurse home visiting in early childhood is limited. This paper describes the method and cohort characteristics of the first Australian study of sustained home visiting commencing antenatally and continuing to child-age two years for at-risk mothers in a disadvantaged community (the Miller Early Childhood Sustained Home-visiting trial. Methods and design Mothers reporting risks for poorer parenting outcomes residing in an area of socioeconomic disadvantage were recruited between February 2003 and March 2005. Mothers randomised to the intervention group received a standardised program of nurse home visiting. Interviews and observations covering child, maternal, family and environmental issues were undertaken with mothers antenatally and at 1, 12 and 24 months postpartum. Standardised tests of child development and maternal-child interaction were undertaken at 18 and 30 months postpartum. Information from hospital and community heath records was also obtained. Discussion A total of 338 women were identified and invited to participate, and 208 were recruited to the study. Rates of active follow-up were 86% at 12 months, 74% at 24 months and 63% at 30 months postpartum. Participation in particular data points ranged from 66% at 1 month to 51% at 24 months postpartum. Rates of active follow-up and data point participation were not significantly different for the intervention or comparison group at any data point. Mothers who presented for antenatal care prior to 20 weeks pregnant, those with household income from full-time employment and those who reported being abused themselves as a child were more likely to be retained in the study. The Miller Early

  10. Enhanced Synthesis of Alkyl Amino Acids in Miller's 1958 H2S Experiment

    Science.gov (United States)

    Parker, Eric T.; Cleaves, H. James; Callahan, Michael P.; Dworkin, James P.; Glavin, Daniel P.; Lazcano, Antonio; Bada, Jeffrey L.

    2011-01-01

    Stanley Miller's 1958 H2S-containing experiment, which included a simulated prebiotic atmosphere of methane (CH4), ammonia (NH3), carbon dioxide (CO2), and hydrogen sulfide (H2S) produced several alkyl amino acids, including the alpha-, beta-, and gamma-isomers of aminobutyric acid (ABA) in greater relative yields than had previously been reported from his spark discharge experiments. In the presence of H2S, aspariic and glutamic acids could yield alkyl amino acids via the formation of thioimide intermediates. Radical chemistry initiated by passing H2S through a spark discharge could have also enhanced alkyl amino acid synthesis by generating alkyl radicals that can help form the aldehyde and ketone precursors to these amino acids. We propose mechanisms that may have influenced the synthesis of certain amino acids in localized environments rich in H2S and lightning discharges, similar to conditions near volcanic systems on the early Earth, thus contributing to the prebiotic chemical inventory of the primordial Earth.

  11. The Concept of Blindness in Sophocles' King Oedipus and Arthur Miller's Death of a Salesman

    Directory of Open Access Journals (Sweden)

    Md. Ziaul Haque

    2013-05-01

    Full Text Available In King Oedipus (429 B.C.E by Sophocles and Death of a Salesman (1949 A.D by Arthur Miller, the central characters Oedipus and Willy Loman take extreme pride in their professions; their pride blinds them from seeing the reality of their circumstances, and it eventually brings their ruin. At he same time, the other characters also display their figurative blindness in both the tragedies. However, it is demonstrated that the protagonists do not succeed in executing their responsibilities as leaders and instead encircle themselves with personal conflicts, which affect their families and others. They strive to rise above their problems with a view to avoiding any possibility of failure. Accordingly, they imbibe willingness in their nature to bring happiness in their plain lives. Ironically, just like Oedipus, Willy Loman never realises the full truth of himself and goes through his life in a blind manner.Keywords: American Dream, blindness, false pride, hamartia, intentional delay of vision, reality, second conscience 

  12. BIOREACTIVE COMPOUNDS AND ANTIOXIDANT PROPERTIES OF METHANOLIC EXTRACT OF FENNEL (FOENICULUM VULGARE MILLER

    Directory of Open Access Journals (Sweden)

    Anita Dua

    2013-06-01

    Full Text Available Methanolic extract of dried Fennel (Foeniculum vulgare Miller seeds was analyzed for the presence of bioreactive compounds: ascorbate, riboflavin, tocopherol and polyphenols with potential antioxidant properties. The extract had low ascorbate (197.12+1.82µg, riboflavin (11.97+0.35µg and tocopherol (280.33+5.67µg/g dry seeds content. However the extract had high polyphenol content (16.506+0.32mg/g dry seeds. Antioxidant activity of the extract was determined by various mechanisms including DPPH free radical scavenging, metal induced protein and lipid oxidation inhibition and protection of DNA against H2O2 induced damage. Fennel had excellent free radical scavenging activity with IC50 2.1mg dry seed weight. IC50 observed for protection of proteins and lipids against metal ion induced oxidation is 2.1 and 2.5mg dry seed weight respectively. Extract equivalent to 0.5µg seeds is enough to protect DNA against H2O2 induced oxidation. The results suggest that polyphenols are the principal components responsible for high antioxidant potential of methanolic extract of fennel.

  13. Antimicrobial activity of Tunisian quince (Cydonia oblonga Miller) pulp and peel polyphenolic extracts.

    Science.gov (United States)

    Fattouch, Sami; Caboni, Pierluigi; Coroneo, Valentina; Tuberoso, Carlo I G; Angioni, Alberto; Dessi, Sandro; Marzouki, Nejib; Cabras, Paolo

    2007-02-01

    Quince (Cydonia oblonga Miller) fruit aqueous acetone extracts were evaluated. High-performance liquid chromatography-diode array detection and electrospray ionization-mass spectrometry were used for the identification and quantification of the phenolic compounds. The total phenolic content of the pulp and peel parts ranged from 37 to 47 and 105 to 157 mg/100 g of fresh weight, respectively. Chlorogenic acid (5-O-caffeoylquinic acid) was the most abundant phenolic compound in the pulp (37%), whereas rutin (quercetin 3-O-rutinoside) was the main one in the peel (36%). The radical scavenging potential of the extracts was determined and compared with that of synthetic antioxidants. The stronger properties corresponded to those obtained from peel material with a 70-80% inhibitory effect on DPPH radicals. The antimicrobial activity of the extracts against different microorganism strains was also investigated. Quince peel extract was the most active for inhibiting bacteria growth with minimum inhibitory and bactericide concentrations in the range of 102-5 x 103 microg polyphenol/mL. It seems that chlorogenic acid acts in synergism with other components of the extracts to exhibit their total antimicrobial activities. PMID:17263500

  14. Compensation of the detector capacitance presented to charge-sensitive preamplifiers using the Miller effect

    Science.gov (United States)

    Kwon, Inyong; Kang, Taehoon; Wells, Byron T.; D'Aries, Lawrence J.; Hammig, Mark D.

    2015-06-01

    This paper describes an integrated circuit design for a modified charge-sensitive amplifier (CSA) that compensates for the effect of capacitance presented by nuclear radiation detectors and other sensors. For applications that require large area semiconductor detectors or for those semiconductor sensors derived from high permittivity materials such as PbSe, the detector capacitance can degrade the system gain and bandwidth of a front-end preamplifier, resulting in extended rise times and attenuated output voltage signals during pulse formation. In order to suppress the effect of sensor capacitance, we applied a bootstrap technique into a traditional CSA. The technique exploits the Miller effect by reducing the effective voltage difference between the two sides of a radiation detector which minimizes the capacitance presented to the differential common-source amplifier. This new configuration is successfully designed to produce effective gain even at high detector capacitance. The entire circuit, including a core CSA with feedback components and a bootstrap amplifier, are implemented in a 0.18 μm CMOS process with a 3.3 V supply voltage.

  15. Review of The Chicago Guide to Writing about Numbers by Jane E. Miller

    Directory of Open Access Journals (Sweden)

    Neil Lutsky

    2009-01-01

    Full Text Available Miller, J. E. 2004. The Chicago Guide to Writing about Numbers. Chicago, IL: University of Chicago Press. 304 pp. Cloth $45 ISBN: 9780226526300, Softcover $17. ISBN: 9780226526317.The Chicago Guide to Writing about Numbers is a reference work suitable for anyone interested in understanding, using, or promoting quantitative thinking. Its primary aim is to identify and illustrate ways in which information associated with numbers can be conveyed most effectively given a particular communication purpose and context. The book is directed at writers who incorporate numbers in verbal or visual displays in documents, in oral presentations, or on the Web. The Chicago Guide to Writing about Numbers identifies overarching principles, offers concrete advice, and presents illuminating examples and models. The book can be used for instructional purposes for undergraduates, and a means of doing so is described. The review concludes by considering the book’s contributions to a wider call to help citizens write or argue more effectively by using numbers.

  16. Optimizing the Betts-Miller-Janjic cumulus parameterization with Intel Many Integrated Core (MIC) architecture

    Science.gov (United States)

    Huang, Melin; Huang, Bormin; Huang, Allen H.-L.

    2015-10-01

    The schemes of cumulus parameterization are responsible for the sub-grid-scale effects of convective and/or shallow clouds, and intended to represent vertical fluxes due to unresolved updrafts and downdrafts and compensating motion outside the clouds. Some schemes additionally provide cloud and precipitation field tendencies in the convective column, and momentum tendencies due to convective transport of momentum. The schemes all provide the convective component of surface rainfall. Betts-Miller-Janjic (BMJ) is one scheme to fulfill such purposes in the weather research and forecast (WRF) model. National Centers for Environmental Prediction (NCEP) has tried to optimize the BMJ scheme for operational application. As there are no interactions among horizontal grid points, this scheme is very suitable for parallel computation. With the advantage of Intel Xeon Phi Many Integrated Core (MIC) architecture, efficient parallelization and vectorization essentials, it allows us to optimize the BMJ scheme. If compared to the original code respectively running on one CPU socket (eight cores) and on one CPU core with Intel Xeon E5-2670, the MIC-based optimization of this scheme running on Xeon Phi coprocessor 7120P improves the performance by 2.4x and 17.0x, respectively.

  17. Topical Aloe Vera (Aloe barbadensis Miller) Extract Does Not Accelerate the Oral Wound Healing in Rats.

    Science.gov (United States)

    Coelho, Fernanda Hack; Salvadori, Gabriela; Rados, Pantelis Varvaki; Magnusson, Alessandra; Danilevicz, Chris Krebs; Meurer, Luise; Martins, Manoela Domingues

    2015-07-01

    The effect of topical application of Aloe Vera (Aloe barbadensis Miller) extract was assessed on the healing of rat oral wounds in an in vivo model using 72 male Wistar rats divided into three groups (n = 24): control, placebo and Aloe Vera (0.5% extract hydroalcoholic). Traumatic ulcers were caused in the dorsum of the tongue using a 3-mm punch tool. The Aloe Vera and placebo group received two daily applications. The animals were sacrificed after 1, 5, 10 and 14 days. Clinical analysis (ulcer area and percentage of repair) and histopathological analysis (degree of re-epithelialization and inflammation) were performed. The comparison of the differences between scores based on group and experimental period, both in quantitative and semi-quantitative analyses, was performed using the Kruskal-Wallis test. The significance level was 5%. On day 1, all groups showed predominantly acute inflammatory infiltrate. On day 5, there was partial epithelialization and chronic inflammatory infiltrate. On the days 10 and 14 total repair of ulcers was observed. There was no significant difference between groups in the repair of mouth ulcers. It is concluded that treatment using Aloe Vera as an herbal formulation did not accelerate oral wound healing in rats. PMID:25891093

  18. Amino acids generated from hydrated Titan tholins: Comparison with Miller-Urey electric discharge products

    Science.gov (United States)

    Cleaves, H. James; Neish, Catherine; Callahan, Michael P.; Parker, Eric; Fernández, Facundo M.; Dworkin, Jason P.

    2014-07-01

    Various analogues of Titan haze particles (termed ‘tholins’) have been made in the laboratory. In certain geologic environments on Titan, these haze particles may come into contact with aqueous ammonia (NH3) solutions, hydrolyzing them into molecules of astrobiological interest. A Titan tholin analogue hydrolyzed in aqueous NH3 at room temperature for 2.5 years was analyzed for amino acids using highly sensitive ultra-high performance liquid chromatography coupled with fluorescence detection and time-of-flight mass spectrometry (UHPLC-FD/ToF-MS) analysis after derivatization with a fluorescent tag. We compare here the amino acids produced from this reaction sequence with those generated from room temperature Miller-Urey (MU) type electric discharge reactions. We find that most of the amino acids detected in low temperature MU CH4/N2/H2O electric discharge reactions are generated in Titan simulation reactions, as well as in previous simulations of Triton chemistry. This argues that many processes provide very similar mixtures of amino acids, and possibly other types of organic compounds, in disparate environments, regardless of the order of hydration. Although it is unknown how life began, it is likely that given reducing conditions, similar materials were available throughout the early Solar System and throughout the universe to facilitate chemical evolution.

  19. From Modigliani–Miller To General Theory Of Capital Cost And Capital Structure Of The Company

    OpenAIRE

    Peter Brusov; Tatiana Filatova; Natali Orehova; Pavel Brusov; Nastia Brusova

    2013-01-01

    One of the serious limitations of the Modigliani–Miller theoryis the suggestion about perpetuity of the companies. We liftup this limitation and show, that the accounting of the finitelifetime of the company leads to change of the equity cost,k  as  well  as  of the  weighted  average  cost  of  capital,WACC,  in  the  presence  of  corporative  taxes. We  give  arigorous  proof  of  the  Brusov–Filatova  theorem,  that  in  the absence  of  corporative  taxes  cost  of  company  equity, , as...

  20. AILANTHUS ALTISSIMA (MILLER SWINGLE: A SOURCE OF BIOACTIVE COMPOUNDS WITH ANTIOXIDANT ACTIVITY

    Directory of Open Access Journals (Sweden)

    Ângelo Luís,

    2012-02-01

    Full Text Available Ailanthus altissima (Miller Swingle is a tree used in Chinese traditional medicine as a bitter aromatic drug and in the treatment of colds and gastric diseases. Previous phytochemical studies have demonstrated the presence of quassinoids in the plant, as well as indole alkaloids. The purpose of this work was to determine the phenolic, flavonoid, and total alkaloid contents of the ethanolic, methanolic, acetone, and hydroalcoholic crude extracts of A. altissima and then try to correlate them with antioxidant activity of corresponding extracts. Moreover, the phenolic compounds present in the extracts were analyzed by RP-HPLC. Extracts from leaves have greater phenolic content than the other parts of this tree. Concerning the extraction process, it is possible to conclude that the mixture of water and ethanol is the best solvent to extract substances with antioxidant activity. Analysis by RP-HPLC showed that ferulic acid was the most dominant hydroxycinnamic acid, with an occurrence percentage of 25.59%. These results presented a positive linear correlation between antioxidant activity index and total phenolic content of all the extracts.

  1. Composition, antioxidant and antimicrobial activities of methanol extracts of some Acinos Miller species.

    Science.gov (United States)

    Golubović, Tatjana; Palić, Radosav; Kitić, Dusanka; Stojanović, Gordana; Zlatković, Bojan; Ristić, Mihailo; Pavlović, Dragana

    2014-05-01

    GC and GC/MS analyses of the methanol extracts obtained from the aerial parts of six Acinos Miller species from Serbia and Montenegro were performed. Seventy-four constituents, accounting for 84.9-99.0% of the total composition of the extracts, were identified. The common feature of the A. suaveolens, A. majoranifolius and A. alpinus methanol extracts was the high content of monoterpenes, while the common feature of the A. graveolens, A. arvensis and A. hungaricus methanol extracts was the prevalence of sesquiterpenes. The total flavonoids, polyphenols and tannins content, as well as antioxidant activity (FRAP and DPPH assay) of the methanolic extracts were investigated. The highest antioxidant activity was observed in the extract of A. alpinus which had high levels of all polyphenol classes examined. A disk diffusion method was used for the evaluation of the antimicrobial activities of the extracts against a panel of microorganisms (bacteria: Bacillus subtilis, Clostridium pyogenes, Enterococcus sp., Micrococcus flavus, Sarcina lutea, Staphylococcus aureus, Klebsiella pneumoniae, Proteus vulgaris, Pseudomonas aeruginosa, Salmonella enteritidis and Escherichia coli; fungi: Aspergillus niger, Candida albicans and Saccharomyces cerevisiae). The preliminary bioassay results indicated that the methanol extract of A. alpinus could be a possible source of antioxidant and antimicrobial compounds. PMID:25026735

  2. David Philip Miller and Peter Hanns Reill (eds), Visions of Empire: Voyages, Botany and the Representations of Nature

    OpenAIRE

    Talairach-Vielmas, Laurence

    2013-01-01

    Visions of Empire: Voyages, Botany and the Representations of Nature, edited by David Philip Miller and Peter Hanns Reill, is a volume which derives from a conference held at the William Andrews Clark Memorial Library and entitled “Visions of Empire”. Although the conference and the hardback publication that followed are not recent, the fresh publication of the collection in paperback fully deserves a review. This engaging book deals with representations of nature and tackles the significance...

  3. Miller Fisher syndrome/acute motor axonal neuronopathy overlap an atypical manifestation of malaria: a case report

    OpenAIRE

    Khwaja Saifullah Zafar; P. S. Singh; Manoj Kumar

    2015-01-01

    Various types of neurological manifestations are described in P. falciparum/vivax malaria of which Guillian Barre syndrome and its variant like Miller Fisher Syndrome (MFS) and Acute Motor Axonal Neuronopathy (AMAN). We are reporting such an unusual case who presented with five days history of fever and weakness of three days duration. On investigations it turned out to be acute MFS/AMAN overlap with peripheral blood showing mixed infection having heavy parasitaemia of P. falciparum and P. vi...

  4. Counterpoint to “What Is an Epileptic Seizure?” By D’Ambrosio and Miller

    OpenAIRE

    Dudek, F. Edward; Bertram, Edward H.

    2010-01-01

    D’Ambrosio and Miller argue that brief (i.e., one to a few seconds), rhythmic electrographic events accompanied by behavioral arrest, which they have observed in rats after lateral fluid percussion (i.e., in an animal model of traumatic brain injury), should be considered seizures in this model of posttraumatic epilepsy (1). A counter argument is that these events are not characteristic of the seizures seen clinically in posttraumatic epilepsy or in other forms of acquired epilepsy. Furthermo...

  5. A study of the effects of Cydonia oblonga Miller (Quince) on TNBS-induced ulcerative colitis in rats

    OpenAIRE

    Minaiyan, M.; Ghannadi, A.; Etemad, M.; Mahzouni, P.

    2012-01-01

    Cydonia oblonga Miller (Quince) from Rosaceae family is a fruit tree cultivated in many countries mainly in Iran. This study was carried out to investigate the effect of quince juice (QJ) and quince hydroalcoholic extract (QHE) on ulcerative colitis (UC) induced by TNBS (trinitrobenzene sulfonic acid) in rats. Rats were grouped (n=6) and fasted for 36 h before colitis induction. TNBS was instilled into the colon with a hydroalcoholic carrier and then treatments were made for 5 days starting 6...

  6. The Effect of Quince Leaf (Cydonia Oblonga Miller) Decoction on Testes in Hypercholesterolemic Rabbits: A Pilot Study

    OpenAIRE

    Ashrafi, Hamideh; Ghabili, Kamyar; Alihemmati, Alireza; Jouyban, Abolghasem; Shoja, Mohammadali M; Aslanabadi, Saeid; Adl, Farzad Hami; Ghavimi, Hamed; Hajhosseini, Laleh

    2012-01-01

    Current medical literature lacks any evidence of the protective effects of quince leaf on testes. Therefore, the aim of the present study was to assess the effect of quince (Cydonia oblonga Miller) leaf decoction on testicular injury and impaired spermatogenesis induced by hypercholesterolemia in rabbits. Eleven mature New Zealand white male rabbits were randomly divided into three groups: group 1 (hypercholesterolemia, n=3), group 2 (hypercholesterolemia plus quince treatment, n=6), and grou...

  7. The Microcosm within: An interview with William B. Miller, Jr., on the Extended Hologenome theory of evolution.

    Science.gov (United States)

    Hunt, Tam

    2015-01-01

    There is a singular unifying reality underlying every biologic interaction on our planet. In immunology, that which does not kill you makes you different. -William B. Miller, Jr. We are experiencing a revolution in our understanding of inner space on a par with our exponentially increasing understanding of outer space. In biology, we are learning that the genetic and epigenetic complexity within organisms is far deeper than suspected. This is a key theme in William B. Miller Jr.'s book, The Microcosm Within: Evolution and Extinction in the Hologenome. We are learning also that a focus on the human genome alone is misleading when it comes to who we really are as biological entities, and in terms of how we and other creatures have evolved. Rather than being defined by the human genome alone, we are instead defined by the "hologenome," the sum of the human genome and the far larger genetic endowment of the microbiome and symbiotic communities that reside within and around us. Miller is a medical doctor previously in private practice in Pennsylvania and Phoenix, Arizona. This book is his first foray into evolutionary theory. His book could have been titled "The Origin of Variation" because this is his primary focus. He accepts that natural selection plays a role in evolution, but he demotes this mechanism to a less important role than the Modern Synthesis suggests. His main gripe, however, concerns random variation. He argues that random variation is unable to explain the origin and evolution of biological forms that we see in the world around us and in the historical record. Miller suggests that, rather than random variation as the engine of novelty, there is a creative impulse at the heart of cellular life, and even at the level of the genetic aggregate, that generates novelty on a regular basis. I probe this assertion in the interview below. He also highlights the strong role of "exogenous genetic assault" in variation and in his immunological model of evolution

  8. Y chromosome peculiarities and chromosomal G- and C-staining in Crocidura shantungensis Miller, 1901 (Soricomorpha: Soricidae)

    OpenAIRE

    Irina Kartavtseva; I-S Park

    2010-01-01

    Cytogenetical examinations of Crocidura shantungensis Miller, 1901 from small Young Island of South Korea and the mainland of Russian Far East (Vladivostok) were carried out and literature data concerning Tsushima Island of Japan and Cheju Island of Korea were considered. The chromosome sets of all investigated specimens are characterized by 2n = 40 and NFa = 46. Four pairs of biarmed autosomes, 15 pairs of acrocentrics and two sex chromosomes were identified applying G- and C-banding....

  9. Inflation in Brusov–Filatova–Orekhova Theory and in its Perpetuity Limit – Modigliani – Miller Theory

    OpenAIRE

    Peter N. Brusov; Tatiana Filatova; Natali Orehova

    2014-01-01

    In this paper the influence of inflation on capital cost and capitalization of the company within modern theory of capital cost and capital structure – Brusov–Filatova–Orekhova theory (BFO theory) (Brusov et al. 2011, 2013; Filatova et al., 2008) and within its perpetuity limit – Modigliani – Miller theory is investigated. By direct incorporation of inflation into both theories, it is shown for the first time that inflation not only increases the equity cost and the weighted average cost of c...

  10. Direct comparasion of an engine working under Otto, Miller end Diesel cycles : thermodynamic analysis and real engine performance

    OpenAIRE

    Ribeiro, Bernardo Sousa; Martins, Jorge

    2007-01-01

    One of the ways to improve thermodynamic efficiency of Spark Ignition engines is by the optimisation of valve timing and lift and compression ratio. The throttleless engine and the Miller cycle engine are proven concepts for efficiency improvements of such engines. This paper reports on an engine with variable valve timing (VVT) and variable compression ratio (VCR) in order to fulfill such an enhancement of efficiency. Engine load is controlled by the valve opening per...

  11. Plankton and other data collected using zooplankton net in the Bering Sea from NOAA Ship MILLER FREEMAN from 16 April 1977 to 15 May 1977 (NODC Accession 7800407)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Plankton and other data were collected using zooplankton net from the NOAA Ship MILLER FREEMAN in the Bering Sea from the 16 April 1977 to 15 May 1977. Data were...

  12. Guillain-Barré syndrome- and Miller Fisher syndrome-associated Campylobacter jejuni lipopolysaccharides induce anti-GM1 and anti-GQ1b Antibodies in rabbits.

    NARCIS (Netherlands)

    M.A. de Klerk; H.P. Endtz (Hubert); B.C. Jacobs (Bart); J.D. Laman (Jon); F.G.A. van der Meché; P.A. van Doorn (Pieter); C.W. Ang (Wim)

    2001-01-01

    textabstractCampylobacter jejuni infections are thought to induce antiganglioside antibodies in patients with Guillain-Barre syndrome (GBS) and Miller Fisher syndrome (MFS) by molecular mimicry between C. jejuni lipopolysaccharides (LPS) and gangliosides. We used purifi

  13. Comparison of Miller and Airtraq laryngoscopes for orotracheal intubation by physicians wearing CBRN protective equipment during infant resuscitation: a randomized crossover simulation study

    OpenAIRE

    Claret, Pierre-Géraud; Asencio, Renaud; Rogier, Damien; Roger, Claire; Fournier, Philippe; Tran, Tu-Anh; Sebbane, Mustapha; Bobbia, Xavier; Emmanuel de La Coussaye, Jean

    2016-01-01

    Background The purpose of this study was to evaluate the performance of orotracheal intubation with the Miller laryngoscope compared with the Airtraq laryngoscope by emergency and pediatric physicians wearing CBRN-PPE type III on infant manikins with conventional airway. We hypothesized that in this situation, the orotracheal intubation with the Airtraq laryngoscope would be faster and more effective than with the Miller laryngoscope. Methods This was a prospective, randomized, crossover, sin...

  14. The Rational Expectations Revolution: A Review Article of: Preston J. Miller, ed.:The Rational Expectations Revolution, Readings from the Front Line

    OpenAIRE

    Mishkin, Frederic S.

    1995-01-01

    This review article of Preston Miller's The Rational Expectations Revolution, Readings From the Front Line focuses on the impact of this research on macroeconomic policymaking. Although policymakers have generally not accepted the equilibrium business cycle models advocated in many of the articles in the Miller volume and even continue to use traditional Keynesian macroeconometric models for policy analysis, several of the lessons from the rational expectations revolution have become central ...

  15. Florescimento e frutificação do maracujazeiro silvestre Passiflora setacea D. C. cultivado em Jaboticabal, SP

    Directory of Open Access Journals (Sweden)

    Elma Machado Ataíde

    2012-06-01

    Full Text Available Muitas espécies de Passiflora apresentam comportamento florífero diferente durante o ano e, consequentemente, com variações nas produções e períodos de colheitas, como observado para o maracujazeiro-amarelo (Passiflora edulis sims. Estudo com espécies silvestre constitui-se numa importante alternativa para usos de novos genótipos no melhoramento das espécies cultivadas comercialmente, em especial, a Passiflora setacea, devido ao grande potencial de mercado; contudo, essa espécie é pouco estudada, principalmente em relação à propagação, germinação, floração e condições de armazenamento. Assim, o objetivo deste trabalho foi avaliar o florescimento e a frutificação do maracujazeiro silvestre Passiflora setacea cultivado em Jaboticabal-SP. A floração e a frutificação foram avaliadas pelo percentual de frutificação através da polinização natural e artificial das flores, realizado no período de agosto a outubro. As características físicas dos frutos foram avaliadas através dos seguintes parâmetros: a massa do fruto (g; b diâmetro longitudinal do fruto (cm; c diâmetro transversal do fruto (cm; d espessura da casca (cm; e rendimento de polpa (%. A característica química foi determinada por meio do teor de sólidos solúveis (SS. Verificou-se que a Passiflora setacea apresentou precocidade de floração em relação ao maracujazeiro-amarelo, com florescimento durante o ano todo, nas condições de Jaboticabal-SP. Observou-se que essa espécie possui bom nível de tolerância às doenças foliares, resistência à morte precoce e apresenta diferentes níveis de compatibilidade entre as plantas, possibilitando a essas características serem utilizadas em programas de melhoramento genético. Constatou-se ainda que as características físicas encontradas nos frutos atendem às exigências da indústria.

  16. Atributos Físicos de um Cambissolo Cultivado e Tratado com Biofertilizante na Chapada do Apodi, Ceará

    Directory of Open Access Journals (Sweden)

    Thiago Leite de Alencar

    2015-06-01

    Full Text Available O conhecimento sobre as alterações físicas e qualidade do solo é importante para o direcionamento adequado das estratégias de manejo a serem utilizadas quando da exploração do solo por cultivos agrícolas. Este trabalho teve como objetivo avaliar os efeitos do cultivo e da aplicação de um biofertilizante, obtido a partir de esterco bovino, sobre a qualidade física de um Cambissolo cultivado com Ficus carica L., irrigado por sistema de gotejamento. Para fins de avaliação da qualidade física, foram contempladas cinco situações de solo: sob cultivo de figo sem aplicação do biofertilizante (testemunha; com aplicação de 20, 40 e 60 % do biofertilizante na lâmina de irrigação; e mata nativa secundária (testemunha adicional, até a profundidade de 0,3 m, nas camadas de 0,0-0,1, 0,1-0,2; e 0,2-0,3 m, com quatro repetições. Nessas camadas, foram coletadas amostras de solo com estrutura deformada e indeformada para realizar análises físicas, como granulometria, argila dispersa em água, carbono orgânico, densidade das partículas e do solo, resistência do solo à penetração e curva característica de água no solo. O cultivo do solo nas condições descritas nesta pesquisa, como preparo do solo por aração e gradagem, uso de irrigação e todos os tratos culturais necessários à condução da cultura de figo, não piora a qualidade física do solo em nenhuma das camadas avaliadas. A aplicação de biofertilizante melhora a qualidade física do solo, particularmente no tocante à retenção de água em decorrência do aumento da microporosidade.

  17. Miller Fisher syndrome: toward a more comprehensive understanding%综合征研究进展

    Institute of Scientific and Technical Information of China (English)

    李海峰; 袁锦楣

    2001-01-01

    Purpose To review recent knowledge on the clinical features, pathology and pathophysiology, diagnosis and treatment of Miller Fisher syndrome (MFS). Data sources Clinical and laboratory studies on MFS in the past 10 years were included. Results A viral infection preceded neurological symptoms in 71.8% of MFS patients. Typical MFS consists of the triad of ataxia, areflexia and ophthalmoplegia. Other cranial nerves are also involved, which may overlap with limb weakness in typical Guillain-Barre syndrome (GBS). Lower cranial nerve variants of GBS, atypical MFS and ataxic neuropathies may overlap, and are thought of as variant forms of MFS. Recurrence and CNS involvement is found more frequently in MFS than in GBS. Antibody to GQ1b, a tetrasyaloganglioside (GQ1b antibody) which is found in close relation to ophthalmoplegia in MFS, is also associated with Campylobacter jejuni (C. jejuni) serotype Penner 2. This suggests that C. jejuni may induce MFS via the GQ1b structure. The GQ1b antibody may lead to the failure of acetylcholine release from motor nerve terminals, which has been confirmed by clinical neurophysiological results. Conclusions Many studies have shown similarities in the pathogenesis of MFS and GBS. However, there are still some differences between them, especially in the areas of sensory and CNS involvement. The GQ1b antibody is thought of as one of the key factors in the pathogenesis of MFS, especially with ophthalmoplegia, and it may prove a useful clinical marker in the diagnosis of MFS.%目的 复习近年来Miller Fisher综合征(MFS)的研究进展。 资料来源 复习了近10年MFS临床、病理、发病机制和病理生理研究的进展。 结果 MFS是一种以眼外肌麻痹、共济失调和腱反射丧失三联征为表现的感染后炎症性脱髓鞘性神经病,与Guillain-Barre综合征(GBS)为同一机制的疾病,感觉和中枢神经受累比GBS多见。MFS可表现为典型的三联征,亦有多种变

  18. Calculation of autoionization positions and widths with applications to Penning ionization reactions. [Miller golden rule formula

    Energy Technology Data Exchange (ETDEWEB)

    Isaacson, A.D.

    1978-08-01

    Using an approximate evaluation of Miller's golden rule formula to calculate autoionization widths which allows for the consideration only of L/sup 2/ functions, the positions and lifetimes of the lowest /sup 1/,/sup 3/P autoionizing states of He have been obtained to reasonable accuracy. This method has been extended to molecular problems, and the ab initio configuration interaction potential energy and width surfaces for the He(2/sup 3/S) + H/sub 2/ system have been obtained. Quantum mechanical close-coupling calculations of ionization cross sections using the complex V* - (i/2) GAMMA-potential have yielded rate constants in good agreement with the experimental results of Lindinger, et al. The potential energy surface of the He(2/sup 1/S) + H/sub 2/ system has also been obtained and exhibits not only a high degree of anisotropy, but also contains a relative maximum for a perpendicular (C/sub 2//sub v/) approach which appears to arise from s-p hybridization of the outer He orbital. However, similar ab initio calculations on the He(2/sup 1/S) + Ar system do not show such anomalous structure. In addition, the complex poles of the S-matrix (Siegert eigenvalues) were calculated for several autoionizing states of He and H/sup -/, with encouraging results even for quite modest basis sets. This method was extended to molecular problems, and results obtained for the He(2/sup 3/S) + H and He(2/sup 1/S) + H systems. 75 references.

  19. Organic Analysis in the Miller Range 090657 CR2 Chondrite: Part 2 Amino Acid Analyses

    Science.gov (United States)

    Burton, A. S.; Cao, T.; Nakamura-Messenger, K.; Berger, E. L.; Messenger, S.; Clemett, S. J.; Aponte, J. C.; Elsila, J. E.

    2016-01-01

    Primitive carbonaceous chondrites contain a wide variety of organic material, ranging from soluble discrete molecules to insoluble, unstructured kerogen-like components, as well as structured nano-globules of macromolecular carbon. The relationship between the soluble organic molecules, macromolecular organic material, and host minerals are poorly understood. Due to the differences in extractability of soluble and insoluble organic materials, the analysis methods for each differ and are often performed independently. The combination of soluble and insoluble analyses, when performed concurrently, can provide a wider understanding of spatial distribution, and elemental, structural and isotopic composition of organic material in primitive meteorites. Using macroscale extraction and analysis techniques in combination with in situ microscale observation, we have been studying both insoluble and soluble organic material in the primitive CR2 chondrite Miller Range (MIL) 090657. In accompanying abstracts (Cao et al. and Messenger et al.) we discuss insoluble organic material in the samples. By performing the consortium studies, we aim to improve our understanding of the relationship between the meteorite minerals and the soluble and insoluble organic phases and to delineate which species formed within the meteorite and those that formed in nebular or presolar environments. In this abstract, we present the results of amino acid analyses of MIL 090657 by ultra performance liquid chromatography with fluorescence detection and quadrupole-time of flight mass spectrometry. Amino acids are of interest because they are essential to life on Earth, and because they are present in sufficient structural, enantiomeric and isotopic diversity to allow insights into early solar system chemical processes. Furthermore, these are among the most isotopically anomalous species, yet at least some fraction are thought to have formed by aqueously-mediated processes during parent body alteration.

  20. A Case Presentation of a Third-Nerve Palsy as a Characteristic of Miller Fisher Syndrome

    Directory of Open Access Journals (Sweden)

    Trennda L. Rittenbach, OD

    2014-07-01

    Full Text Available Background: A rare clinical variant of Guillain-Barre syndrome, known as Miller Fisher syndrome (MFS, is an immunemediated neuropathy classically characterized by a triad consisting of ophthalmoplegia, ataxia, and areflexia.1,2 Although MFS is thought to be a disease of immunological basis, other pathological entities may give rise to the syndrome as well. The diagnosis of MFS relies upon clinical signs, a combination of lab tests including antibody serum, cerebrospinal fluid, and electrophysiological findings. Understanding the clinical course of MFS and its ocular components can aid in the rehabilitation and co-management of these patients. Case Report: A 79-year-old white male presented with a four day onset of double vision and an inability to walk unassisted. An examination revealed a pupil-sparing third-nerve palsy with a left eye ptosis. Due to the patient being in moderate pain throughout his entire body and presenting with an acute onset of symptoms, the patient was sent to the emergency room in the same hospital building. The patient was immediately admitted for evaluation and testing which revealed the diagnosis of MFS. Conclusions: Although a complaint of diplopia can lead to an array of diagnoses, when accompanied by an acute inability to walk, MFS should be on the list of possible causes. Although mostly a self-limiting disease, there is the possibility of progressing to respiratory failure. Knowledge of the syndrome, its clinical course, and prognosis, along with an appropriate evaluation with current laboratory testing, will lead to the proper diagnosis, treatment, and management.

  1. Structural Modifications of Fructans in Aloe barbadensis Miller (Aloe Vera) Grown under Water Stress

    Science.gov (United States)

    Salinas, Carlos; Cardemil, Liliana

    2016-01-01

    Aloe barbadensis Miller (Aloe vera) has a Crassulaceae acid metabolism which grants the plant great tolerance to water restrictions. Carbohydrates such as acemannans and fructans are among the molecules responsible for tolerating water deficit in other plant species. Nevertheless, fructans, which are prebiotic compounds, have not been described nor studied in Aloe vera, whose leaf gel is known to possess beneficial pharmaceutical, nutritional and cosmetic properties. As Aloe vera is frequently cultivated in semi-arid conditions, like those found in northern Chile, we investigated the effect of water deficit on fructan composition and structure. For this, plants were subjected to different irrigation regimes of 100%, 75%, 50% and 25% field capacity (FC). There was a significant increase in the total sugars, soluble sugars and oligo and polyfructans in plants subjected to water deficit, compared to the control condition (100% FC) in both leaf tips and bases. The amounts of fructans were also greater in the bases compared to the leaf tips in all water treatments. Fructans also increase in degree of polymerization with increasing water deficit. Glycosidic linkage analyses by GC-MS, led to the conclusion that there are structural differences between the fructans present in the leaves of control plants with respect to plants irrigated with 50% and 25% FC. Therefore, in non-stressed plants, the inulin, neo-inulin and neo-levan type of fructans predominate, while in the most stressful conditions for the plant, Aloe vera also synthesizes fructans with a more branched structure, the neofructans. To our knowledge, the synthesis and the protective role of neo-fructans under extreme water deficit has not been previously reported. PMID:27454873

  2. Efficacy of enteroclysis through Miller-Abbott tube for decompression in patients with postoperative intestinal obstruction

    International Nuclear Information System (INIS)

    The purpose of this study is to assess the efficacy of enteroclysis through the previously inserted Miller-Abbott (M-A) tube for decompression in the postoperative intestinal obstruction. This study includes twenty patients who has intestinal obstruction symptoms after operation for benign(12) or malignant(8) abdominal lesions. Small amount of barium was introduced to M-A tube for enteroclysis. We evaluated the presence, level, degree, and causes of obstruction on enteroclysis, compared with surgical(11) and clinical(9) findings. Obstruction was seen in 18 cases including the two cases in which the level of obstruction was not clear. There was no obstruction in two cases. Obstruction on enteroclysis was demonstrated in all 11 operated cases(100% accuracy, 11/11). The level of obstruction on enteroclysis were jejunum in three cases, ileum in seven, and colon in one case. The levels of obstruction on enteroclysis were matched with those in operation field in 10 cases. There were two cases of nonobstruction on enteroclysis were jejunum in three cases, ileum in seven, and colon in one case. The levels of obstruction on enteroclysis were matched with those in operation field in 10 cases. There were two cases of nonobstruction, nine cases of low-grade partial obstruction, and nine cases of high-grade partial obstruction. We analyzed the findings on enteroclysis regarding causes of obstruction in 16 patients with the findings of adhesive bands of extrinsic cause(9), cancer recurrence of intrinsic cause(6), and bezoar of intraluminal cause(1). Misinterpreted cases were two cases(87.7% accuracy, 14/16). The cause, for nonvisualization of obstruction site on enteroclysis in four patients included technical failure such as inadequate location of tube(1) and bowel overlapping(1), minimal obstruction(1), and nonexistent obstruction(1), in spite of diffuse edematous mucosa. Enteroclysis through the M-A tube for decompression in patients with postoperative intestinal obstruction

  3. Structural Modifications of Fructans in Aloe barbadensis Miller (Aloe Vera) Grown under Water Stress.

    Science.gov (United States)

    Salinas, Carlos; Handford, Michael; Pauly, Markus; Dupree, Paul; Cardemil, Liliana

    2016-01-01

    Aloe barbadensis Miller (Aloe vera) has a Crassulaceae acid metabolism which grants the plant great tolerance to water restrictions. Carbohydrates such as acemannans and fructans are among the molecules responsible for tolerating water deficit in other plant species. Nevertheless, fructans, which are prebiotic compounds, have not been described nor studied in Aloe vera, whose leaf gel is known to possess beneficial pharmaceutical, nutritional and cosmetic properties. As Aloe vera is frequently cultivated in semi-arid conditions, like those found in northern Chile, we investigated the effect of water deficit on fructan composition and structure. For this, plants were subjected to different irrigation regimes of 100%, 75%, 50% and 25% field capacity (FC). There was a significant increase in the total sugars, soluble sugars and oligo and polyfructans in plants subjected to water deficit, compared to the control condition (100% FC) in both leaf tips and bases. The amounts of fructans were also greater in the bases compared to the leaf tips in all water treatments. Fructans also increase in degree of polymerization with increasing water deficit. Glycosidic linkage analyses by GC-MS, led to the conclusion that there are structural differences between the fructans present in the leaves of control plants with respect to plants irrigated with 50% and 25% FC. Therefore, in non-stressed plants, the inulin, neo-inulin and neo-levan type of fructans predominate, while in the most stressful conditions for the plant, Aloe vera also synthesizes fructans with a more branched structure, the neofructans. To our knowledge, the synthesis and the protective role of neo-fructans under extreme water deficit has not been previously reported. PMID:27454873

  4. Fenología de la floración en tomate cultivado y especies silvestres relacionadas Flowering phenology in cultivated tomato and related wild species

    Directory of Open Access Journals (Sweden)

    Edwin Fernando Restrepo Salazar

    2008-06-01

    Full Text Available En un diseño experimental de bloques completos al azar se comparó la fenología de la floración de doce accesiones silvestres de Solanum sección Lycopersicum con la del tomate cultivado tipo “chonto”. Los tratamientos se repitieron tres veces. Se evaluó la aparición de las 12 primeras inflorescencias y el tipo de inflorescencia. Las fenologías de las accesiones de la variedad glabratum de S. habrochaites (PI 134417, PI134418 y PI126449, las accesiones LA1624, LA2092 de la variedad typicum de S. habrochaites y la accesión LA 444-1 de S. peruvianum coincidieron con la del tomate “chonto”. No se presentaron diferencias significativas en la variable días a inicio de floración entre las accesiones de la variedad glabratum y el tomate cultivado. Las accesiones de la variedad glabratum de S. habrochaites y el tomate cultivado presentaron inflorescencias simples; mientras que las accesiones de la variedad typicum de S. habrochaites y de la especie S. peruvianum presentaron inflorescencias bifurcadas.The flowering phenology of twelve wild accesions of Solanum section Lycopersicum were compared with those of the cultivated tomato type of “chonto” by using the randomized complete block design. The treatments were repeated three times. The appearance initiate of the first twelve inflorescences and kind of inflorescence were evaluated. The phenologies of the accesions of the glabratum variety from S. habrochaites (PI 134417, PI134418 y PI126449, LA1624 y LA2092 of the typicum variety from S. habrochaites and LA 444-1 from S. peruvianum coincided with those of the “chonto” tomato. There were no significant differences between the glabratum variety accessions and cultivated tomato in the starting days of flowering variable. The accesions of the glabratum variety from S. habrochaites and the cultivated tomato presented simple inflorescences; while the accesions of the typicum variety from S. habrochaites and S. peruvianum specie showed

  5. Atributos químicos de suelos argiudoles cultivados y no cultivados del departamento Las Colonias (Santa Fe Chemical attributes of cultivated and non-cultivated argiudolls in the district of Las Colonias (Santa Fe

    Directory of Open Access Journals (Sweden)

    María Eugenia Carrizo

    2011-12-01

    Full Text Available Durante las últimas décadas la intensificación en el uso del suelo, las elevadas tasas de extracción de nutrientes y el incremento en el uso de fertilizantes nitrogenados llevaron a marcados procesos de degradación de los suelos de la región central de Santa Fe. El objetivo de este trabajo fue cuantificar las diferencias existentes entre suelos cultivados (SC y sus respectivas situaciones no cultivadas (SNC para diversos atributos químicos y biológicos. En suelos Argiudoles típicos y ácuicos del centro de Santa Fe se evaluaron, en dos profundidades (0-15 y 15-30 cm, los siguientes atributos: materia orgánica (MO, pH, bases intercambiables (calcio, magnesio, sodio y potasio y capacidad de intercambio catiónico (CIC. Comparando SNC y SC, en ambas profundidades, hubo una reducción del contenido de MO (próxima a 30%, de Ca++ (20%, de Mg++ (30% y del pH (de hasta 0,6 unidades en los 0-15 cm. La capacidad de intercambio catiónico y los niveles de K+ disminuyeron significativamente sólo en los 0-15 cm, encontrándose actualmente el 64% del potasio original. El sodio intercambiable fue el único parámetro químico que no sufrió alteración significativa debido al uso de los suelos. Los resultados de este estudio confirmarían que los suelos Argiudoles del centro de Santa Fe sufrieron una alteración significativa de la mayoría de sus propiedades en relación a su situación prístina.During the last decade, the soil use intensification, the high nutrient extraction rates and the excessive use of nitrogen fertilizer have increased the degradation of Santa Fe soils. The objective of this study was to quantify the differences among cultivated soils (SC and their respective non-cultivated situations (SNC for diverse chemical and biological attributes. The following properties were evaluated in typical and aquic Argiudolls of the center of Santa Fe:,organic matter (MO, pH, exchangeable bases (calcium, magnesium, sodium and potassium and

  6. Efecto del Almacenamiento a Diferentes Temperaturas sobre la Calidad de Tuna Roja (Opuntia ficus indica (L.) Miller) Effect of the Storage at Different Temperatures on the Quality of Red Prickle Pear (Opuntia ficus indica (L.) Miller)

    OpenAIRE

    Carlos E Ochoa; Guerrero, José A.

    2012-01-01

    Se estudia el efecto del almacenamiento a diferentes temperaturas sobre la calidad de tuna roja (Opuntia ficus indica (L.) Miller), variedad San Martín. El fruto se almacenó a 4±1, 9±2 y 28±2°C para determinar su vida útil. Se realizó semanalmente la caracterización fisicoquímica, enzimática, antioxidante y microbiológica durante el almacenamiento, hasta observar características no aptas para el consumo. Se observó que el tiempo y la temperatura de almacenamiento son factores que afectan de m...

  7. Acúmulo de carbono em Latossolo adubado com dejeto líquido de suínos e cultivado em plantio direto

    Directory of Open Access Journals (Sweden)

    Maria Sueli Heberle Mafra

    2014-08-01

    Full Text Available O objetivo deste trabalho foi estimar taxas de acúmulo de C orgânico em Latossolo Vermelho adubado com adubo solúvel e dejeto líquido de suíno e cultivado em plantio direto. O experimento foi conduzido em Campos Novos, SC, e os seguintes tratamentos foram aplicados anualmente: sem adubação; adubo solúvel; 25 m3 ha-1 de dejeto líquido + adubo solúvel; e doses de 25, 50, 100 e 200 m3 ha-1 de dejeto líquido. Foram determinados: os estoques de C orgânico (CO na camada de 0-20 cm do solo; a adição de C pela fitomassa dos cultivos e pelo dejeto líquido de suíno; as taxas anuais de fixação de C; e os coeficientes de humificação (k1 e de mineralização (k2 de CO do solo. As taxas de fixação de C real e aparente aumentaram de acordo com as doses de dejeto, tendo variado de 0,6 a 1,7 e de 0,05 a 1,0 Mg ha-1 por ano, respectivamente. Os coeficientes k1 e k2 foram 0,17 e 0,011, respectivamente, enquanto o aporte de C requerido para manter o estoque inicial de CO do solo é de 4,14 Mg ha-1 por ano. O dejeto líquido de suíno aplicado anualmente em Latossolo Vermelho cultivado com a sucessão milho-aveia-preta em plantio direto aumenta o CO do solo em doses de até 200 m3 ha-1.

  8. Cell death induced by tamoxifen in human blood lymphocytes cultivated in vitro = Morte celular induzida pelo tamoxifeno em linfócitos humanos cultivados in vitro

    Directory of Open Access Journals (Sweden)

    Selma Candelária Genari

    2010-10-01

    Full Text Available Many chemotherapeutic agents with a potential against solid tumors or leukemia can cause lymphopenia. Tamoxifen (TAM is a synthetic non-steroidal anti-estrogen drug employed in female breast cancer treatment. The present study investigated the capacity of TAM to induce cell death in human lymphocytes cultivated in vitro. Lymphocytes were obtained from young (25-30 years; n = 3 and elderly women (58-77 years; n = 3 and cultivated for 24 or 48h, with or without TAM (20 ƒÊM. After the culture, cell viability, immunocytochemical response and ultrastructure were evaluated. TAM affected lymphocytes in a time- dependent manner, and cells obtained from elderly women were the most sensitive to TAM. Immunocytochemicalanalysis evidenced higher frequency of apoptosis in treated cells, and the ultrastructural study revealed autophagic vacuoles, differing from the controls. In summary, the treated lymphocytes were affected by TAM, leading to cell death by apoptosis and autophagy.Muitos agentes quimioterapicos com potencial contra tumores solidos ou leucemias podem causar linfopenia. O Tamoxifeno (TAM e um agente antiestrogeno nao-esteroidal empregado no tratamento de cancer de mama feminino. O presente trabalho investigou a capacidade do TAM em induzir morte celular em linfocitos humanos cultivados in vitro. Oslinfocitos foram obtidos de mulheres jovens (25-30 anos; n = 3 e idosas (58-77 anos; n = 3 e cultivados por 24 ou 48h, com ou sem TAM (20 ƒÊM. Apos a cultura, foram analisadas a viabilidade celular, a resposta imunocitoquimica e a ultraestrutura. Os resultados indicam que o Tamoxifeno induziu morte celular em linfocitos de ambos os grupos, entretanto, as celulas das mulheres idosas apresentaram-se mais sensiveis ao tratamento. A analise imunocitoquimica mostrou maior frequencia de apoptose nas celulas tratadas e o estudo ultraestrutural revelou vacuolos autofagicos nos linfocitos expostos ao Tamoxifeno. Em conclusao, nosso estudo revelou que o TAM

  9. Simulation of organic molecule formation in solar system environments-The Miller-Urey Experiment in Space project overview

    Science.gov (United States)

    Kotler, J. Michelle; Ehrenfruend, Pascale; Botta, Oliver; Blum, Jurgen; Schrapler, Rainer; van Dongen, Joost; Palmans, Anja; Sephton, Mark A.; Martins, Zita; Cleaves, Henderson J.; Ricco, Antonio

    The Miller-Urey Experiment in space (MUE) investigates the formation of potential prebiotic organic compounds in the early solar system environment. The MUE experiment will be sent to and retrieved from the International Space Station (ISS), where it will be performed inside the Microgravity Science Glovebox (MSG). The goal of this space experiment is to understand prebiotic reactions in microgravity by simulating environments of the early solar nebula. The dynamic environment of the solar nebula with the simultaneous presence of gas, particles, and energetic processes, including shock waves, lightning, and radiation may trigger a rich organic chemistry leading to organic molecules. These environments will be simulated in six fabricated vials containing various gas mixtures as well as solid particles. Two gas mixture compositions will be tested and subjected to continuous spark discharges for 48, 96, and 192 hours. Silicate particles will serve as surfaces on which thin water ice mantles can accrete. The particles will move repeatedly through a high-voltage spark discharge in microgravity, enabling chemical re-actions analogous to the original Miller-Urey experiment. The experiment will be performed at low temperatures (-5 C), slowing hydrolysis and improving chances of detection of interme-diates, initial products, and their distributions. Executing the Miller-Urey experiment in the space environment (microgravity) allows us to simulate conditions that could have prevailed in the energetic early solar nebula and provides insights into the chemical pathways that may occur in forming planetary systems. Analysis will be performed post-flight using chemical analytical methods. The anticipated results will provide information about chemical reaction pathways to form organic compounds in space environment, emphasizing abiotic chemical pathways and mechanisms that could have been crucial in the formation of biologically relevant compounds such as amino acids and

  10. Airborne radioactivity survey of the Miller Hill area, Carbon county, Wyoming

    Science.gov (United States)

    Meuschke, J.L.; Moxham, R.M.

    1953-01-01

    The accompanying map shows the results of an airborne radioactivity survey covering 65 square miles northwest of Miller Hill, Carbon county, Wyoming. The survey was made by the U.S. Geological Survey as part of a cooperative program with the U.S. Atomic Energy Commission. At 500 feet above the ground, the width of the zone from which anomalous radioactivity is measured varies with the intensity of radiation of the source and, for strong sources, the width would be as much as 1,400 feet. Quarter-mile spacing of the flight paths of the aircraft should be adequate to detect anomalies from strong sources of radioactivity. However, small areas of considerable radioactivity midway between flight paths may not be noted. The approximate location of each radioactivity anomaly is shown on the accompanying map. The plotted position of an anomaly may be in error by as much as a quarter of a mile owing to errors in the available base maps up to several square miles in which it is impossible to find and plot recognizable landmarks. The radioactivity anomalies shown on the accompanying map cannot be interpreted in terms of either the radioactive content or the extent of the source materials. The present technique of airborne radioactivity measurement does not permit distinguishing between activity due to thorium and that due to uranium. An anomaly, therefore, may represent radioactivity due entirely to uranium, or to thorium, or to a combination of uranium and thorium. The radioactivity that is recorded by airborne measurements at 500 feet above the ground can be caused by: 1. A moderately large area in which the rocks and soils are slightly more radioactive than the rocks and soils of the surrounding area. 2. A smaller area in which the rocks and soils are considerably more radioactive than rocks and soils in the surrounding area. 3. A very small area in which to rocks and soils are much more radioactive than the rocks and soils of the surrounding area. Any particular anomaly

  11. Compactação causada pelo manejo de plantas invasoras em latossolo vermelho-amarelo cultivado com cafeeiros

    Directory of Open Access Journals (Sweden)

    Paula Sant'Anna Moreira Pais

    2011-12-01

    Full Text Available O manejo de plantas invasoras é considerado uma das principais atividades que promovem degradação da estrutura do solo em lavouras cafeeiras, devido à compactação do solo causada pelas operações de controle de plantas invasoras. O objetivo deste estudo foi determinar o modelo de capacidade de suporte de carga para o manejo de plantas invasoras sem capina, bem como, utilizando esse modelo, qual manejo de plantas invasoras causa menor ou maior compactação do solo. Este estudo foi realizado em um Latossolo Vermelho-Amarelo (LVA cultivado com cafeeiros da cutivar Topázio MG 1190 desde 2006, localizado na Fazenda Experimental da EPAMIG, na comunidade Farias, em Lavras-MG. Os manejos de plantas invasoras avaliados foram: na linha de tráfego da entrelinha - grade de discos, herbicida de pós-emergência, herbicida de pré-emergência, roçadora e trincha; e no centro da entrelinha, onde não houve tráfego - amendoim forrageiro (Arachis pintoi, braquiária (Brachiaria decumbens, capina manual, crotalária (Crotalaria juncea e soja (Glicine max L. A amostragem consistiu de duas etapas: uma para determinar o modelo de capacidade de suporte de carga para o manejo de plantas invasoras sem capina; e outra para avaliar a compactação promovida pelos outros manejos de plantas invasoras. A fim de determinar o modelo de capacidade de suporte de carga para o manejo sem capina, foram coletadas no centro da entrelinha 20 amostras com estrutura indeformada nas profundidades de 0-3, 10-13 e 25-28 cm, totalizando 60 amostras. Essas amostras foram submetidas ao ensaio de compressão uniaxial para obter as pressões de pré-consolidação e as umidades volumétricas, que foram usadas para determinar o modelo de capacidade de suporte de carga. Para determinar a compactação causada pelos manejos de plantas invasoras, realizados por meio do controle mecânico, foram coletadas em janeiro de 2010, nas linhas de tráfego das entrelinhas, 180 amostras com

  12. Diagnóstico de síndrome de Miller Fisher tras manifestaciones otorrinolaringológicas

    OpenAIRE

    Santos Gorjón, Pablo; Sánchez Terradillos, Elena; Mingo Sánchez, Eva María; Sánchez-Jara Sánchez, Juan Luis; Martín Hernández, Gonzalo

    2015-01-01

    [ES] Introducción y objetivos: El Síndrome de Miller-Fisher (SMF) es la forma más frecuente entre las formas no clásicas (variantes) del síndrome de Guillain Barré. Se caracteriza por la tríada clásica de oftalmoplejía, ataxia y arreflexia. Material y métodos: Presentamos el caso de un paciente de 19 años que consulta porque tras una faringitis irritativa vírica, desarrolla una inestablidad importante y aparece una disfagia importante incluso para secreciones basales. Se evidencia una marcha...

  13. Los costos de la desinflación en colombia según el modelo buiter-miller

    OpenAIRE

    Ramírez Vigoya Alejandro; Sarmiento Espinel Jaime

    2008-01-01

    En este artículo analizamos los costos del proceso desinflacionario colombiano entre 1998 y 2003, utilizamos un modelo VAR estructural con restricciones de corto y largo plazo basado en el modelo Buiter-Miller (1982), el cual analiza los efectos de una desaceleración del crecimiento monetario sobre la tasa de interés real, la tasa de cambio real, la producción y los precios. Por medio de la contabilidad de innovaciones concluimos que los choques de la tasa de interés real y del crecimiento de...

  14. Los costos de la desinflación en Colombia según el modelo Buiter-Miller

    Directory of Open Access Journals (Sweden)

    Ramírez Vigoya Alejandro

    2005-12-01

    Full Text Available En este artículo analizamos los costos del proceso desinflacionario colombiano entre 1998 y 2003, utilizamos un modelo VAR estructural con restricciones de corto y largo plazo basado en el modelo Buiter-Miller (1982, el cual analiza los efectos de una desaceleración del crecimiento monetario sobre la tasa de interés real, la tasa de cambio real, la producción y los precios. Por medio de la contabilidad de innovaciones concluimos que los choques de la tasa de interés real y del crecimiento de la base monetaria fueron los principales causantes de la desinflación.

  15. Miller-Urey and Beyond: What Have We Learned About Prebiotic Organic Synthesis Reactions in the Past 60 Years?

    Science.gov (United States)

    McCollom, Thomas M.

    2013-05-01

    The synthesis of amino acids in the Miller-Urey spark-discharge experiments in the early 1950s inspired a strong interest in experimental studies of prebiotic organic chemistry that continues today. Over the years, many of the basic building blocks of life as we know it have been synthesized in the laboratory from simple ingredients, including amino acids, sugars, nucleobases, and membrane-forming lipids. Questions remain, however, concerning whether the conditions that allow synthesis of these compounds in the laboratory accurately simulate those that might have been present on the early Earth, and a closer convergence between plausible prebiotic conditions and laboratory simulations remains a challenge for experimentalists.

  16. ´Imperio estético: griegos frente a persas según 300 de Frank Miller

    OpenAIRE

    Díez Platas, Fátima

    2011-01-01

    Este trabajo pretende realizar un análisis iconográfico y estético de la peculiar imagen que ofrece del imperio persa la adaptación cinematográfica de la novela gráfica de Frank Miller 300 (Z. Snyder, 2007). Partiendo de la idea de que la evidente deformación de la representación obedece al giro poético que supone presentar la realidad desde el punto de vista de los espartanos, se examinan las imágenes como el producto de una versión personal, y se exploran las razones a las que ...

  17. Efecto del Almacenamiento a Diferentes Temperaturas sobre la Calidad de Tuna Roja (Opuntia ficus indica (L. Miller Effect of the Storage at Different Temperatures on the Quality of Red Prickle Pear (Opuntia ficus indica (L. Miller

    Directory of Open Access Journals (Sweden)

    Carlos E Ochoa

    2012-01-01

    Full Text Available Se estudia el efecto del almacenamiento a diferentes temperaturas sobre la calidad de tuna roja (Opuntia ficus indica (L. Miller, variedad San Martín. El fruto se almacenó a 4±1, 9±2 y 28±2°C para determinar su vida útil. Se realizó semanalmente la caracterización fisicoquímica, enzimática, antioxidante y microbiológica durante el almacenamiento, hasta observar características no aptas para el consumo. Se observó que el tiempo y la temperatura de almacenamiento son factores que afectan de manera significativa (P0,05 a las diferentes temperaturas de almacenamiento. Sin embargo, la actividad antioxidante presentó un aumento significativo con el tiempo.The effect of the storage at different temperatures on the quality of red prickle pear (Opuntia ficus indica (L. Miller San Martín variety. The fruit was stored at 4±1, 9±2, and 28±2°C for determining its shelf life. Once a week, physicochemical, enzymatic, antioxidant and microbiological characteristics were evaluated until fruit showed no edible characteristics. Time and storage temperature were the two parameters that significantly affected (p0.05 during storage time. However, antioxidant capacity presented a significant increase with time.

  18. Primordial Synthesis of Amines and Amino Acids in a 1958 Miller H2S-Rich Spark Discharge Experiment

    Science.gov (United States)

    Parker, Eric T.; Cleaves, Henderson J.; Dworkin, Jason P.; Glavin, Daniel P.; Callahan, Michael; Aubrey, Andrew; Lazcano, Antonio; Bada, Jeffrey L.

    2011-01-01

    Archived samples from a previously unreported 1958 Stanley Miller electric discharge experiment containing hydrogen sulfide (H2S) were recently discovered and analyzed using high-performance liquid chromatography and time-of-flight mass spectrometry. We report here the detection and quantification of primary amine-containing compounds in the original sample residues, which were produced via spark discharge using a gaseous mixture of H2S, CH4, NH3, and CO2. A total of 23 amino acids and 4 amines, including 7 organosulfur compounds, were detected in these samples. The major amino acids with chiral centers are racemic within the accuracy of the measurements, indicating that they are not contaminants introduced during sample storage. This experiment marks the first synthesis of sulfur amino acids from spark discharge experiments designed to imitate primordia! environments. The relative yield of some amino acids, in particular the isomers of aminobutyric acid, are the highest ever found in a spark discharge experiment. The simulated primordial conditions used by Miller may serve as a model for early volcanic plume chemistry and provide insight to the possible roles such plumes may have played in abiotic organic synthesis. Additionally, the overall abundances of the synthesized amino acids in the presence of H2S are very similar to the abundances found in some carbonaceous meteorites, suggesting that H2S may have played an important role in prebiotic reactions in early solar system environments.

  19. The formation of organic molecules in solar system environments: The Miller-Urey Experiment in Space preflight overview

    Science.gov (United States)

    Kotler, J.; Ehrenfreund, P.; Martins, Z.; Ricco, A.; Blum, J.; Schraepler, R.; van Dongen, J.; Palmans, A.; Sephton, M.; Cleaves, H. J.

    2011-12-01

    The Miller-Urey Experiment in space (MUE) will investigate the formation of prebiotic organic compounds in the early solar system environment when it is sent to, and later retrieved from, the International Space Station in 2012. The dynamic environment of the solar nebula with the simultaneous presence of gas, particles, and energetic processes, including shock waves, electrical discharges, and radiation may trigger a rich organic chemistry leading to organic molecules. Two gas mixture compositions (CH4, NH3, H2 and N2, H2, CO) will be tested and subjected to continuous spark discharges for 48, 96, and 192 hours. Silicate particles will serve as surfaces on which thin water ice mantles can accrete. The experiment will be performed at low temperatures (-5 °C), slowing hydrolysis and improving chances of detection of initial products, intermediates and their abundances. Conducting the Miller-Urey experiment in the space environment (microgravity) allows us to simulate conditions that could have prevailed in the low gravity, energetic early solar nebula and provides insights into the chemical pathways that may occur as planetary systems form.

  20. CERN Library | Arthur I. Miller presents "Colliding worlds: How Cutting-Edge Science Is Redefining Contemporary Art" | 21 October

    CERN Multimedia

    2014-01-01

    In recent decades, an exciting new art movement has emerged in which artists illuminate the latest advances in science.   Some of their provocative creations - a live rabbit implanted with the fluorescent gene of a jellyfish, a gigantic glass-and-chrome sculpture of the Big Bang itself - can be seen in traditional art museums and magazines, while others are being made by leading designers at Pixar, Google's Creative Lab and the MIT Media Lab. Arthur I. Miller takes readers on a wild journey to explore this new frontier. From the movement's origins a century ago - when Einstein shaped Cubism and X-rays affected fine photography - to the latest discoveries of biotechnology, cosmology and quantum physics, Miller shows how today's artists and designers are producing work at the cutting edge of science. Tuesday, 21 October 2014 at 14:30 in the Library, Bldg. 52 1-052 https://indico.cern.ch/event/346299/ *Coffee will be served from 2 p.m.* "Colliding Worlds: How Cutt...

  1. ESTUDO DA GERMINAÇÃO DE SEMENTES DE LAVANDA (Lavandula angustifolia Miller

    Directory of Open Access Journals (Sweden)

    E.M. AOYAMA

    1996-05-01

    Full Text Available Com o objetivo de estudar os efeitos do ácido giberélico, do efeito luz/escuro e do pré-resfriamento sobre a germinação de sementes de lavanda (Lavandula angustifolia Miller, empregou-se o delineamento experimental inteiramente casualizado, com cinco repetições de 30 sementes cada, e os seguintes tratamentos: testemunha; GA3 100 ppm; GA3 200 ppm; escuro; GA3 100 e 200 ppm + 48 h de pré-resfriamento e GA3 100 e 200 ppm + 7 dias de pré-resfriamento. As sementes de lavanda foram pré-embebidas por 18 horas nas soluções de GA3 e em água destilada e depois colocadas em gerbox, com papel de filtro umedecido com água destilada. Nos tratamentos com pré-resfriamento as sementes foram mantidas em câmara fria por 48 horas e 7 dias à temperatura de 5° C; posteriormente, foram transferidas para o germinador, sob luz branca contínua à temperatura constante de 25°C. A contagem das sementes foi realizada de 2 em 2 dias até completar 30 dias de teste. Para a avaliação dos efeitos dos tratamentos sobre a germinação das sementes foram realizadas as seguintes observações: a porcentagem de sementes germinadas e b tempo médio de germinação (expresso em dias. A partir dos resultados obtidos pode-se verificar que os tratamentos com GA3, em conjunto ou não com pré-resfriamento, aumentaram significativamente a porcentagem de germinação, além de acelerar tal processo.To study the effects of gibbellic acid, of the light/darkness and of pre-freezing on the germination of lavender seeds, a randomized experiment was used, with five replications of 30 seeds, with the following treatments: control, GA3 100 ppm, GA3 200 ppm, darkness, GA3 100 and 200 ppm + 48 h pre-freezing and GA3 100 and 200 ppm + 7 days of pre-freezing. The lavender seeds were pre-soaked during 18 hours in GA3 and destilated water solutions, and thereafter placed in gerbox, using moistened filter paper. In the pre-freezing treatments the seeds were kept in a refrigerator for

  2. Daisy, A Victim of Prejudice in Intercultural Communication--An Analy-sis of Daisy’s Tragic Destiny in Henry James’Daisy Miller

    Institute of Scientific and Technical Information of China (English)

    李明

    2014-01-01

    Daisy Miller, among Henry James’masterpieces, is the novella which won him international fame. As some critics have analyzed, Daisy is a victim of the values of the Old World. In the author’s opinion, Daisy’s tragedy should be partly attrib-uted to prejudice, which impedes the international communication between the newly wealthy Americans and the Europeanized Americans. In this sense, this paper focuses on an analysis of three forms of prejudice in Daisy Miller and tries to interpret Daisy’s tragic destiny from the perspective of intercultural communication.

  3. Larson-Miller correlation for the effect of thermal ageing on the yield strength of a cold worked 15Cr-15Ni-Ti modified austenitic stainless steel

    International Nuclear Information System (INIS)

    For 20% cold worked 15Cr-15Ni-Ti modified austenitic stainless steel (Alloy D9), the Larson-Miller parameter can be used to describe the effects of prior thermal exposures to different time-temperature combinations on the 0.2% yield stress σ YS, ultimate strength and total elongation in subsequent tensile tests at 300, 723 and 923 K. A single master plot for all the tensile test temperatures was obtained by plotting the Larson-Miller parameter against the ratio S YS=(σ YS of thermally aged material)/(σ YS of un-aged material) at identical tensile testing temperature

  4. 乌兰察布型华北驼绒藜品种栽培驯化试验研究%Experimental Study on Cultivation and Domestication of Ceratoides arborescens ( Losinsk. ) Tsien et C. G. Ma cv. Wulanchabu Variety

    Institute of Scientific and Technical Information of China (English)

    孙海莲; 阿拉塔

    2012-01-01

    Ceratoides arborescens (Losinsk.)Tsien et C. G. Ma cv. Wulanchabu is a new variety bred from wild desert grass seeds collected in Wulatezhongqi ,Houqi ,Siziwangqi, and after 10 years of introduction and cultivation. We chose seeds and carried out comparative test,regional test,productive test,popularization and application in the Comprehensive Test and Demonstration Center, Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences and surrounding areas. The variety showed following advantages : (1)tall plant with developed root system; (2)resistanee to drought, cold and poor soil, strong adaptability ; (3) rich nutrition and good for animals ,fast growth, high forage yield. In the process of domestication, we compared Ceratoides with other forage grass in arid region,the variety showed characteristic of high germination rate,high seedling rate,high yield. Seedling and planting of this variety has remarkable economic benefits, it plays a good role on improving ecological environment. In production ,we use technique of seedling in small area and transplanting in big area.%乌兰察布型华北驼绒藜[Ceratoides arborescens(Losinsk.)Tsienet C.G.Ma cv.Wulanchabu]是采集内蒙古乌拉特中旗和后旗、四子王旗荒漠草原野生的华北驼绒藜种子,经10多年引种驯化栽培选育而成的新品种。选择性能优良的植株采收种子.在内蒙古农牧业科学院四子王基地及其周边地区进行品种比较试验、区域试验、生产试验及推广应用。研究发现,该品种具有以下优点:①植株高大,根系发达;②抗旱、耐寒、耐瘠薄,耐盐碱,适应性强;③营养丰富,适口性好,生长速度快,产草量高。在驯化选育的过程中。对驼绒藜属内的植物及其他牧草在干旱地区的建植进行了对比,结果该品种显示出苗率高、成苗率高、产量高且稳定的特点,育苗建植有比较显著的经济效益,在生态治理

  5. Flowering phenology in cultivated tomato and related wild species Fenología de la floración en tomate cultivado y especies silvestres relacionadas

    Directory of Open Access Journals (Sweden)

    Lobo Arias Mario

    2008-06-01

    Full Text Available The flowering phenology of twelve wild accesions of Solanum section Lycopersicum were compared with those of the cultivated tomato type of “chonto” by using the randomized complete block design. The treatments were repeated three times. The appearance initiate of the first twelve inflorescences and kind of inflorescence were evaluated. The phenologies of the accesions of the glabratum variety from S. habrochaites (PI 134417, PI134418 y PI126449, LA1624 y LA2092 of the typicum variety from S. habrochaites and LA 444–1 from S. peruvianum coincided with those of the “chonto” tomato. There were no significant differences between the glabratum variety accessions and cultivated tomato in the starting days of flowering variable. The accesions of the glabratum variety from S. habrochaites and the cultivated tomato presented simple inflorescences; while the accesions of the typicum variety from S. habrochaites and S. peruvianum specie showed compound inflorescences.Key words: Solanum lycopersicum; S. habrochaites; S. peruvianum; kind of inflorescence.En un diseño experimental de bloques completos al azar se comparó la fenología de la floración de doce accesiones silvestres de Solanum sección Lycopersicum con la del tomate cultivado tipo “chonto”. Los tratamientos se repitieron tres veces. Se evaluó la aparición de las 12 primeras inflorescencias y el tipo de inflorescencia. Las fenologías de las accesiones de la variedad glabratum de S. habrochaites (PI 134417, PI134418 y PI126449, las accesiones LA

  6. Nutrient accumulation in ‘Fantasy’ net melon cultivated on substrateAcúmulo de nutrientes do meloeiro rendilhado ‘Fantasy’ cultivado em substrato

    Directory of Open Access Journals (Sweden)

    Danilo Mesquita Melo

    2013-09-01

    Full Text Available Knowledge of the most essential nutrients for plant growth facilitates the efficient handling of its nutrition, especially when they are grown on a substrate supported by fertigation. The objective of this study was to determine the accumulation of nutrients in net melon grown on a substrate and understand the relationship between mineral nutrition and plant growth. The Fantasy hybrid was cultivated in pots containing a substrate consisting of a mixture of sand and peanut shells (ratio, 1:1. Determination of nutrient accumulation was performed in 6 seasons. The substrate was chemically characterized before and after cultivation. Harvesting occurred 78 days after transplantation, resulting in an average yield of 70,120 kg·ha-1. Substrate analysis showed a small increase in nutrient levels by the end of cultivation. The order of nutrient accumulation was as follows: N>Ca>K>P>Mg>S>B>Fe>Mn>Zn>Cu. O conhecimento dos nutrientes mais requeridos pelas plantas possibilita o manejo mais eficiente na nutrição destas, principalmente, quando são cultivadas em substrato com fertirrigação. Dessa forma, o objetivo deste trabalho foi determinar a marcha de acúmulo de nutrientes do meloeiro rendilhado cultivado em substrato. O híbrido Fantasy foi cultivado em vasos contendo substrato (mistura de areia e casca de amendoim em partes iguais. A determinação da marcha de acúmulo de nutrientes foi realizada em seis épocas. O substrato foi caracterizado quimicamente antes e após o cultivo. A colheita ocorreu aos 78 dias após o transplante, obtendo-se produtividade média de 70.120 kg ha-1. A massa média e o teor de sólidos solúveis, obtido pelos frutos, foram de 1,75 kg e 10,2 °Brix, respectivamente. A análise do substrato demonstrou pouco incremento de nutrientes no fim do cultivo. A ordem de acúmulo de nutrientes foi: N>Ca>K>P>Mg>S>B>Fe>Mn>Zn>Cu.

  7. Efeito de solo previamente cultivado com plantas aromáticas na germinação e no desenvolvimento inicial de alface

    Directory of Open Access Journals (Sweden)

    T. S. PEREIRA

    2015-12-01

    Full Text Available RESUMOO objetivo desse trabalho foi verificar o efeito do solo pré-cultivado com plantas aromáticas na germinação e no desenvolvimento inicial de plântulas de alface cv. Simpson. A pesquisa foi realizada na Embrapa Hortaliças, Brasília, em bandejas mantidas em casa de vegetação. O experimento foi conduzido em delineamento experimental inteiramente casualizado, com três repetições e onze tratamentos: solo pré-cultivado com hortelã-comum (Mentha x villosa, hortelã-brava (Mentha arvensis, hortelã-pimenta (Mentha piperita, Mentha spp., capim-citronela (Cymbopogon winterianus, capim-limão (Cymbopogon citratus, manjericão de folha larga (Ocimum basilicum, manjericão de folha roxa (Ocimum gratissimun, tomilho (Thymus vulgaris, sálvia (Salvia officinalis e solo da mesma área sem cultivo prévio de planta aromática (controle. Aos 30 dias após o semeio, foram avaliadas: índice de velocidade de emergência (IVE, taxa de sobrevivência (TS, número de folhas (NF, comprimento da raiz principal (CRP e da parte aérea (CPA, massa fresca da raiz (MFR e da parte aérea (MFPA e massa seca da raiz (MSR e da parte aérea (MSPA. Os dados foram submetidos à análise de variância e teste de Tukey a 5% de probabilidade. Houve diferença significativa em relação ao IVE, sendo que o tratamento com C. citratus afetou negativamente a emergência das plântulas. O tratamento com M. arvensis apresentou uma TS de apenas 16% das plantas aos 30 dias após a semeadura. O NF foi menor no tratamento com M. arvensis, diferentemente de todos os demais, exceto S. officinalis. A MRF e MFF foram estimuladas pelo tratamento com T. vulgaris sendo superior a todos os outros tratamentos. Os resultados obtidos permitem concluir que houve efeito negativo de M. arvensis e positivo de T. vulgaris no desenvolvimento inicial de plântulas de alface.

  8. Laterally positioned flap-revised technique along with platelet rich fibrin in the management of Miller class II gingival recession

    Directory of Open Access Journals (Sweden)

    Jagmohan Singh

    2013-01-01

    Full Text Available Gingival recession is a complex phenomenon that may present numerous therapeutic challenges to the clinician. The laterally positioned flap is commonly used to cover isolated, denuded roots that have adequate donor tissue laterally and vestibular depth. Various modifications in laterally sliding flap have been proposed in order to avoid the reported undesirable results on the donor teeth. Recently, use of growth factors has been proposed in combination with surgical techniques. This article highlights the use of laterally positioned pedicle flap-revised technique as a modification of laterally sliding flap technique along with autologous suspension of growth factors, platelet rich fibrin membrane (PRF for the management of localized Miller class-II gingival recession. After 6 months of follow-up, the clinical condition was stable with 80% root coverage and satisfactory gingival tissue healing at both donor and recipient site with no signs of inflammation. An excellent esthetical outcome was achieved and the patient was satisfied with case resolution.

  9. The effect of quince leaf (Cydonia oblonga miller) decoction on testes in hypercholesterolemic rabbits: a pilot study.

    Science.gov (United States)

    Ashrafi, Hamideh; Ghabili, Kamyar; Alihemmati, Alireza; Jouyban, Abolghasem; Shoja, Mohammadali M; Aslanabadi, Saeid; Adl, Farzad Hami; Ghavimi, Hamed; Hajhosseini, Laleh

    2013-01-01

    Current medical literature lacks any evidence of the protective effects of quince leaf on testes. Therefore, the aim of the present study was to assess the effect of quince (Cydonia oblonga Miller) leaf decoction on testicular injury and impaired spermatogenesis induced by hypercholesterolemia in rabbits. Eleven mature New Zealand white male rabbits were randomly divided into three groups: group 1 (hypercholesterolemia, n=3), group 2 (hypercholesterolemia plus quince treatment, n=6), and group 3 (control, n=2). Groups 1 and 2 received a cholesterol-enriched diet for six weeks. Group 2 received C. oblonga leaf decoction as drinking supplement as well. After six weeks, a normal diet was substituted in groups 1 and 2 for another six weeks. Group 3 (control group) was maintained throughout the study on a regular diet. At the end of the 12(th) week, the left testes of the animals were resected for light microscopic study with particular attention to the maturity of germ cells in seminiferous tubules using Johnsen's score. Increase in intertubular connective tissue and diameter of vessels, abundant spermatogonia and primary spermatocytes along the reduced germinal epithelium were noted in all rabbits of the group 1. The remaining animals in groups 2 and 3 had no significant changes in their testicular sections. The mean Johnsen's score of group 1 (4.20 ± 1.92) was significantly lower than that of group 2 (7.33 ± 0.52) and group 3 (7.05 ± 0.07). (P=0.01). In conclusion, quince leaf decoction (C. oblonga Miller) protected rabbit testes and spermatogenesis from damage induced by hypercholesterolemia. PMID:24146451

  10. A case study into the measurement of ship emissions from plume intercepts of the NOAA Ship Miller Freeman

    Directory of Open Access Journals (Sweden)

    C. D. Cappa

    2013-09-01

    Full Text Available Emissions factors (EFs for gas and sub-micron particle-phase species were measured in intercepted plumes as a function of vessel speed from an underway research vessel, the NOAA Ship Miller Freeman, operating a medium-speed diesel engine on low-sulfur marine gas oil. For many of the particle-phase species, EFs were determined using multiple measurement methodologies, allowing for an assessment of how well EFs from different techniques agree. The total sub-micron PM (PM1 was dominated by particulate black carbon (BC and particulate organic matter (POM, with an average POM / BC ratio of 1.3. Consideration of the POM / BC ratios observed here with literature studies suggests that laboratory and in-stack measurement methods may over-estimate primary POM EFs relative to those observed in emitted plumes. Comparison of four different methods for black carbon measurement indicates that careful attention must be paid to instrument limitations and biases when assessing EFBC. Particulate sulfate (SO42− EFs were extremely small and the particles emitted by Miller Freeman were inefficient as cloud condensation nuclei (CCN, even at high super saturations, consistent with the use of very low sulfur fuel and the overall small emitted particle sizes. All measurement methodologies consistently demonstrate that the measured EFs (fuel mass basis for PM1 mass, BC and POM decreased as the ship slowed. Particle number EFs were approximately constant across the speed change, with a shift towards smaller particles being emitted at slower speeds. Emissions factors for gas-phase CO and formaldehyde (HCHO both increased as the vessel slowed, while EFs for NOx decreased and SO2 EFs were approximately constant.

  11. Comparison of the Clinical Use of Macintosh and Miller Laryngoscopes for Orotracheal Intubation by Second-Month Nurse Students in Anesthesiology

    Directory of Open Access Journals (Sweden)

    Somchai Amornyotin

    2010-01-01

    Full Text Available Aim. The aim of this study is to compare the clinical feasibility of Macintosh and Miller laryngoscopes for tracheal intubation in non-experienced users in anesthetized patients. Patients and Methods. 119 patients were randomized into the Macintosh group (59 and the Miller group (60. The primary outcome variable was successful tracheal intubation. The secondary outcome variables were number of insertion attempt, intubation time needed, total time to intubation, hemodynamic change and complications. Results. All patients were successfully intubated using the Macintosh, whereas 13 patients (21.6% were failed with the Miller (<.001. The Macintosh significantly reduced the mean total time to intubation (<.001. There were significant differences in the mean blood pressure at 2 minutes after laryngoscope insertion, immediately, and 2 minutes after tracheal intubation and in the mean heart rate at the laryngoscope insertion, immediately, and at 2 minutes after tracheal intubation between the two groups. Overall complications in both were not significantly different. Conclusion. Orotracheal intubation using the Macintosh is an effective and safe technique in non-experienced hands with significantly increased success rate as well as decreased mean total time to intubation as compare to the Miller. However, these intubations only apply to selected patients deemed to have normal airways.

  12. Review of Jennifer Madans, Kirsten Miller, Aaron Maitland, and Gordon Willis. Question Evaluation Methods: Contributing to the Science of Data Quality

    NARCIS (Netherlands)

    de Leeuw, Edith

    2014-01-01

    Jennifer Madans, Kirsten Miller, Aaron Maitland, and Gordon Willis (Eds). Question Evaluation Methods: Contributing to the Science of Data Quality. Hoboken, NJ: John Wiley & Sons, Inc. 378 pp. 2011. Paperback: ISBN 9781118037003, price USD 64.20. E-pub: ISBN 9781118036983, price USD 52.99. Website Q

  13. 1 küsimus noorele juhile : Mis teha, kui kopp on ees - kuidas sa stressist jagu saad? / Riho Jürvetson, Merit Miller, Krister Rekkaro ... [jt.

    Index Scriptorium Estoniae

    2009-01-01

    Küsimusele vastavad EMT erakliendi osakonna juhataja Riho Jürvetson, KPMG Baltics müügijuht Merit Miller, ArtPrint juht Krister Rekkaro, Dateli juhatuse liige Triin Sepp, Media House projektijuht Tanel Tarkmees, Ober-Haus Kinnisvara tegevjuht Katrin Klein-Näppi

  14. Características de frutos de genótipos de aceroleira cultivados sob elevada altitude Fruit characteristics of acerola genotypes grown at highaltitude

    Directory of Open Access Journals (Sweden)

    LEANDRA REGINA SEMENSATO

    2000-12-01

    Full Text Available O objetivo deste trabalho foi avaliar as características físicas, físico-químicas e químicas de frutos de nove genótipos de acerola (Malpighia sp. cultivados no Município de Anápolis, GO, localizado a 1.000 m de altitude. Os resultados mostraram que nessa região se consegue produção de frutos com elevados teores de vitamina C (acima de 1.000 mg/100 mL de suco. Há, entretanto, uma considerável variabilidade entre os genótipos estudados. Os genótiposde número2, 6, 3, 1 e 7 destacaram-se, atendendo àsprincipais exigências da indústria de suco.The purpose of this work was to evaluate the physical, physical-chemical and chemical characteristics of fruits from nine genotypes of acerola (Malpighia sp.growing in Anápolis, GO, Brazil, located at 1,000 m above sea level. Data showed that the production of fruits with high content of vitamin C (above 1,000 mg/100 mL of juice is viable in that region. However, it was found a considerable variability among the genotypes studied, in which genotypesnumbered2, 6, 3, 1and 7 stood out, fulfilling the main industrial requirements.

  15. Efeito de lodo de esgoto na fertilidade de um Argissolo Vermelho-Amarelo cultivado com cana-de-açúcar

    Directory of Open Access Journals (Sweden)

    Silva Fábio Cesar da

    2001-01-01

    Full Text Available O objetivo deste trabalho foi avaliar os efeitos da aplicação de 0, 20 e 40 Mg ha-1 de lodo de esgoto, na presença e ausência de fertilizante mineral (NPK na fertilidade e nos teores de metais pesados de um Argissolo Vermelho-Amarelo distrófico, cultivado com cana-de-açúcar. Amostras de solo foram coletadas aos 146, 272 e 484 dias após o plantio da cultura de cana-de-açúcar e foram submetidas à análise de fertilidade pelo método do Instituto Agronômico de Campinas, incluindo a determinação do S, Cr, Cd, Cu, Fe, Mn, Pb e Zn. O lodo de esgoto diminuiu a acidez do solo e forneceu Ca, P, S e Zn, principalmente. Seus efeitos foram de curta duração, restringindo-se a um ano agrícola. Os teores dos metais pesados das amostras de solo tratado foram maiores que os da testemunha, mas menores que os valores considerados perigosos ao ambiente.

  16. Estabilidade temporal da distribuição espacial da armazenagem de água em um solo cultivado com citros Temporal stability of the spatial distribution of water storage in a soil under citrus cultivation

    OpenAIRE

    Genelício Crusoé Rocha; Paulo Leonel Libardi; Laércio Alves de Carvalho; Antônio Carlos Rodrigues Cruz

    2005-01-01

    O presente trabalho objetivou quantificar e caracterizar a variabilidade espaço-temporal e a estabilidade temporal da armazenagem da água em um Latossolo Amarelo argissólico cultivado com citros. A parcela experimental foi montada em um solo sob uma cultura de citros com 10 anos de idade, consistindo de 40 pontos de observação ao longo de duas transeções, com espaçamento de 4 x 7 m, isto é, duas transeções 1 e 2 (coincidentes com duas linhas de plantas) paralelas e distantes entre si de 7 m e...

  17. Trocas gasosas e eficiência fotoquímica potencial em mamoeiro do grupo 'Formosa' cultivado em condição de campo Leaf gas exchange and potential photochemical efficiency of field-grown papaya plants

    OpenAIRE

    Fabrício De Oliveira Reis; Eliemar Campostrini

    2008-01-01

    Em mamoeiro, estudar como os fatores do ambiente afetam as trocas gasosas é de fundamental importância para otimizar a assimilação fotossintética do carbono e do controle da perda de água. Para tanto, em duas épocas, outubro de 2002 e janeiro de 2003, foram estudadas as trocas gasosas e a eficiência fotoquímica potencial em mamoeiros do grupo 'Formosa', cultivados em condição de campo em São Francisco de Itabapoana (RJ). As determinações das características estudadas, como Assimilação fotossi...

  18. Influência do agrotêxtil sobre a densidade populacional de Monosporascus cannonballus em solo cultivado com melancia (Citrullus lanatus) Influence of the row cover on the population density of Monosporascus cannonballus in soil cultivated with watermelon (Citrullus lanatus)

    OpenAIRE

    Erika Valente de Medeiros; Ernildo César da Silva Serafim; Leilson Costa Granjeiro; José Espínola Sobrinho; Maria Zuleide de Negreiros; Rui Sales Júnior

    2008-01-01

    O fungo Monosporascus cannonballus é um importante patógeno radicular que ocasiona a síndrome denominada colapso em cucurbitáceas. No presente trabalho, objetivou-se, avaliar os efeitos da cobertura de planta com agrotêxtil branco de 15 g m-2, sobre a densidade populacional de M. cannonballus, em solo cultivado com melancia [Citrullus lanatus (Thumb.) Matsu & Nakai]. O delineamento experimental utilizado foi o de blocos casualizados em esquema de parcelas subdivididas, com três repetições. As...

  19. Qualidade do tomate de mesa cultivado nos sistemas convencional e orgânico Quality of tomatoes cultivated in the organic and conventional cropping systems

    Directory of Open Access Journals (Sweden)

    Sila Mary Rodrigues Ferreira

    2010-03-01

    Full Text Available A presença dos produtos orgânicos nas gôndolas das grandes redes de supermercados indica que existe um potencial de mercado para esses produtos, no entanto poucas são as informações técnico-científicas sobre eles. Em razão disso, o presente trabalho teve como objetivo determinar a qualidade do tomate de mesa cultivado nos sistemas convencional (SC e orgânico (SO comercializado na Região Metropolitana de Curitiba. As amostras foram avaliadas pela massa, peso específico, cinzas, sólidos totais, sólidos solúveis totais, acidez titulável total, relação sólidos solúveis totais/acidez titulável total, pH, vitamina C, nitratos, nitritos, multirresíduos, benzimidazóis e ditiocarbamatos. Os resultados da análise físico-química mostraram que somente na umidade os tomates não apresentaram diferença significativa ao nível de 5% quando comparados pelo Teste de Tukey. Em relação à análise toxicológica, não foram detectados multirresíduos e benzimidazóis até os limites de 0,04 mg.kg-1 e 0,1 mg.kg-1 de carbendazim, respectivamente. Nos resíduos de pesticidas do grupo químico ditiocarbamatos, foi identificado 0,01 mg.kg-1 (CS2 nas amostras de SC3 e SC4 do tomate de mesa cultivado no sistema convencional, abaixo do limite máximo recomendado (LMR de 2,0 mg.kg-1 (CS2 de mancozebe.The presence of organic products in the aisles of big supermarket chains indicates a market potential for these products. However, there is little technical and scientific information. Thus, the objective of this work was to determine the quality of tomatoes grown under conventional (CS and organic (OS systems, on sale in the metropolitan area of Curitiba, Brazil. Samples were evaluated in terms of mass, specific weight, ash, total solids, total soluble solids, total titratable acidity, total soluble solids/total titratable acidity ratio, pH, vitamin C, nitrates, nitrites, multiresidues. There were no significant differences between conventional and

  20. Antioxidant Capacity, Anthocyanins, and Total Phenols of Wild and Cultivated Berries in Chile Capacidad Antioxidante, Antocianinas y Fenoles Totales de Berries Silvestres y Cultivados en Chile

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    Jaime Guerrero C

    2010-12-01

    ón fue determinar la capacidad antioxidante (AC, antocianinas totales (TA y el contenido de fenoles totales (TP, de berries silvestres y cultivados en diferentes localidades de la Región de La Araucanía y Región de Los Ríos (Chile. Para evaluar estos parámetros se utilizó el método de radicales libres 2,2-difenil-2- picrilhidrazilo (DPPH, pH diferencial y Folin-Ciocalteu, respectivamente. Los porcentajes de decoloración del DPPH estuvieron comprendidos entre 67,8% para zarzaparrilla roja y 95,3% para rosa mosqueta. El maqui presentó un contenido de AT significativamente mayor (2240,2 y 1445,3 mg L-1 cianidina 3-glucósido que el resto de los berries, el promedio de AT fue de 335,5 mg L-1. En cuanto al contenido FT los mayores niveles se obtuvieron en los dos cultivares de saskatoon (773,9 y 1001,9 mg L-1 ácido gálico y en rosa mosqueta silvestre (1457,0 y 1140,4 mg L-1 de ácido gálico. En este estudio se concluye que existen diferencias significativas en la capacidad antioxidante de frutos silvestres y cultivados en Chile, observándose una fuerte correlación entre el CA y el contenido de FT.

  1. Variabilidade de nutrientes em plantas de milho cultivado em talhão manejado homogeneamente Corn plant nutrient variability in an homogeneously managed crop field

    Directory of Open Access Journals (Sweden)

    Zaqueu Fernando Montezano

    2008-12-01

    Full Text Available O conhecimento da variabilidade da nutrição de plantas e da produtividade em áreas cultivadas pode fornecer importantes subsídios na racionalização do uso de insumos e auxiliar no manejo da fertilidade do solo. O objetivo deste trabalho foi avaliar a variabilidade da nutrição mineral de plantas de milho por meio do fracionamento de um talhão cultivado comercialmente em células de manejo e verificar as relações com a produtividade. O estudo foi realizado na Fazenda Alto Alegre, em Planaltina (GO, em área de 373 hectares de Latossolo Vermelho-Amarelo Distroférrico, cultivado com milho na safra 2003/04. Traçado um polígono da área, procedeu-se sua divisão em 80 células de manejo de quatro hectares cada uma. A amostragem de folhas em cada célula seguiu uma diagonal com 12 pontos para compor uma amostra composta. Realizou-se a análise dos macro e micronutrientes nas folhas. A produtividade para cada célula foi obtida por meio de colhedora equipada com GPS. Na análise da variabilidade dos resultados foram considerados os parâmetros estatísticos descritivos. O teste ausência de correlação foi realizado com o nível de significância de 5%. A variabilidade da concentração dos nutrientes na folha indicadora do milho foi considerada baixa para N, P, K, S e Mg; e média para Ca, Cu, Fe, Mn e Zn. A variabilidade da produtividade de milho revelou diferenças de produção para cada célula analisada. Os coeficientes de correlação entre os nutrientes e a produtividade foram significativamente diferentes de zero (pThe knowledge of variability of plant nutrition and grain productivity in cultivated areas may provide important information for rational use of fertilizers and soil amendments. The objective of this case study was to determine the corn plant mineral nutrition variability through the fractionation of a commercial grown corn field into small management cells. The study was carried out at the farm Alto Alegre in

  2. Filme plástico perfurado em túneis baixos cultivados com alface Perforated plastic film for low tunnels cultivated with lettuce

    Directory of Open Access Journals (Sweden)

    José E. B. A. Monteiro

    2002-12-01

    Full Text Available O objetivo deste trabalho foi avaliar as condições micrometeorológicas no interior de túneis baixos cultivados com alface, através da perfuração do filme plástico, técnica utilizada para melhorar a ventilação no interior dos túneis, porém ainda pouco conhecida. Assim, foram testados túneis sem e com cultura de alface, com 0, 5, 10, 15 e 20% de área de filme perfurada e, também, um canteiro sem túnel, durante a primavera. As variáveis meteorológicas utilizadas para a avaliação dos tratamentos foram temperatura e umidade relativa do ar, verificando-se que, quanto maior o percentual de perfuração, menor a elevação da temperatura no interior do ambiente protegido e maior a perda de umidade para o ambiente exterior. A produção obtida nos ambientes protegidos foi maior e de melhor qualidade.The present work was carried out with the objective to evaluate the micrometeorological conditions inside low tunnels cultivated with lettuce. A technique used to improve the ventilation inside the tunnels is the perforation of the plastic film, though still not very well known. Therefore, tunnels were tested without and with lettuce crop, with 0, 5, 10, 15 and 20% of perforated film area and in soil without tunnel, during spring. The meteorological variables used for the evaluation of the treatments were temperature and relative humidity of air. It was verified that the elevation of the temperature inside the protected atmosphere was inversely related to percentage of perforation contrary to the humidity loss for the external atmosphere. The production obtained under protected conditions was higher and of better quality.

  3. INDICADORES MACRO E MICROMORFOLÓGICOS DA QUALIDADE FÍSICA DE UM LATOSSOLO VERMELHO CULTIVADO COM CANA-DE-AÇÚCAR

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    Adriana Aparecida Silva

    2015-01-01

    Full Text Available El sudoeste del estado de Goiás se destacó en la reciente expansión del cultivo de caña-de-azúcar, en particular la microrregión del Quirinópolis donde fueron sustituidos áreas de cultivos anuales, sobre todo soja, y luego áreas de pastoreo, en los Oxisol distrófico arcilloso (LVdf, que tiene un alto potencial para la compactación. El objetivo de este estudio fue conocer el proceso de compresión de tales suelos cultivados con caña-de-azúcar, mientras que los perfiles seleccionados fueran descomprimidos, corregidos y fertilizados antes de lo plantío de caña. Estos perfiles presentan diversas formas de uso antes de la caña de (soja/caña, pasto/caña y sucesión pasto/soja/caña, y el manejo con y sin fertirrigacion con vinaza, y se basaron en área de vegetación natural. Se evaluaron indicadores macro y micromorfológicos, pruebas de la resistencia mecánica a penetración y análisis físico-hidro del laboratorio. Los resultados indicaron compactación superficial y subsuperficial de los perfiles estudiados, independientemente de los usos anteriores, los principales indicadores la presencia de estructura tendiendo a laminares y ligeramente porosa en los niveles comprimidos y el aumento de la densidad aparente del suelo y de la resistencia a la penetración.

  4. ANÁLISIS DEL CRECIMIENTO DE UN GENOTIPO SILVESTRE DE Carica papaya L. CULTIVADO EX SITU Y CV. `MARADOL ROJA ́´

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    Jesús Rodríguez Cabello

    2015-01-01

    Full Text Available La especie Carica papaya L., es nativa del trópico americano y uno de los frutales más cultivados a nivel mundial. En Cuba existen problemas que afectan la producción de este frutal, considerados los más importantes el reducido número de cultivares explotados comercialmente y la baja diversidad genética presente en el banco de germoplasma. Sin embargo, existen genotipos silvestres que constituyen una fuente importante de genes para los programas de mejoramiento y explotación local, los cuales aún no se han caracterizado. Estudios de análisis del crecimiento permiten comprender su comportamiento en diferentes periodos de siembra en condiciones ex situ eidentificar caracteres de crecimiento inicial que posibiliten el aumento del rendimiento y favorezcan los trabajos de mejoramiento en busca de genotipos más productivos. Debido a lo antes señalado, el objetivo de la presente investigación fue realizar estudios del crecimiento del genotipo papaya silvestre de la cuenca Almendares-Vento. Las semillas para los experimentos se obtuvieron de frutos colectados in situ. Las medidas directas en la planta fueron área foliar y peso seco. Para la determinación de la superficie foliar se empleó una cámara digital y un software. El análisis computarizado de las imágenes de hojas obtenidas con la cámara digital permitió estimar el área foliar de forma simple, rápida y económica. La mayor producción de área foliar del genotipo silvestre y similar comportamiento en la masa seca y resto de los indicadores evaluados, indica la disponibilidad de recursos durante toda la fase de crecimiento, lo cual se asocia con su rendimiento

  5. ALTERAÇÕES MICROMETEOROLÓGICAS CAUSADAS POR TÚNEIS BAIXOS DE TELA PLÁSTICA PRETA CULTIVADOS COM ALFACE

    Directory of Open Access Journals (Sweden)

    Galileo Adeli Buriot

    1994-01-01

    Full Text Available RESUMO Foram determinadas alterações micrometeorológicas causadas por tela plástica preta com 18, 30 e 50% de atenuação da radiação solar incidente, durante os meses de verão, em Santa Maria, RS. O experimento foi conduzido no Campo Experimental do Departamento de Fitotecnia da UFSM, onde foram cultivados quatro canteiros com alface, três deles cobertos com túneis de tela plástica. O estudo foi realizado em 3 períodos: de 30/11/90 a 17/01/91, de 06/02/91 a 25/03/91 e de 10/12/91 a 01/03/92. Mediu-se a radiação solar global, radiação solar na faixa de comprimento de onda do infravermelho e a luminosidade, temperatura diurna do solo, temperatura mínima e diurna do ar e umidade do solo e do ar. Os resultados mostraram que a temperatura do solo e do ar e a perda de água do solo são menores sob os túneis do que no exterior. As diferenças cresceram com o aumento da atenuação e a temperatura mínima do ar e a umidade relativa do ar são semelhantes no interior e exterior dos túneis e entre os túneis com diferentes percentagens de atenuação.

  6. First report on Cydonia oblonga Miller anticancer potential: differential antiproliferative effect against human kidney and colon cancer cells.

    Science.gov (United States)

    Carvalho, Márcia; Silva, Branca M; Silva, Renata; Valentão, Patrícia; Andrade, Paula B; Bastos, Maria L

    2010-03-24

    The present study reports the phenolic profile and antiproliferative properties of quince (Cydonia oblonga Miller) leaf and fruit (pulp, peel, and seed) against human kidney and colon cancer cells. The phenolic profiles of quince methanolic extracts were determined by high-performance liquid chromatography (HPLC)/diode array detector (DAD). 5-O-Caffeoylquinic acid was always one of the two major phenolic compounds present in all extracts, except for seed. Our results revealed that quince leaf and fruit extracts exhibited distinctive antiproliferative activities. The extracts from quince leaf showed concentration-dependent growth inhibitory activity toward human colon cancer cells (IC(50) = 239.7 +/- 43.2 microg/mL), while no effect was observed in renal adenocarcinoma cells. Concerning the fruit, seed extracts exhibited no effect on colon cancer cell growth, whereas strong antiproliferative efficiency against renal cancer cells was observed for the highest concentration assayed (500 microg/mL). The antiproliferative activity of pulp and peel extracts was low or absent in the selected range of extract concentrations. This is the first report showing that C. oblonga may be useful as a cancer chemopreventive and/or chemotherapeutic agent. PMID:20192210

  7. Cálculo de la resistencia a la penetración en hojas de aloe vera (Barbadenses Miller

    Directory of Open Access Journals (Sweden)

    Giovanni Torres Charry

    2013-12-01

    Full Text Available Para caracterizar la resistencia a la penetración de hojas de aloe vera, variedad Barbadenses Miller, se diseñó una máquina y se establecieron los protocolos de medición para desplazamiento y fuerza necesarios para medir la resistencia a la penetración en tres puntos diferentes de las hojas. Los resultados mostraron que no existe una relación lineal entre el desplazamiento del indentador en la hoja y la fuerza de penetración. Por otro lado, se encontró que no existen diferencias en los valores de la fuerza de penetración al evaluar ésta en distintos puntos para una misma hoja. Se hallaron diferencias en los valores obtenidos entre hojas diferentes, lo que permite suponer que existe influencia de las características dimensionales de las hojas en el valor de la fuerza de penetración. Los valores máximos obtenidos para la fuerza de penetración variaron entre 22 y 27 N, para una velocidad de avance de la herramienta de 2.6 mm/s.

  8. Chemical Composition and Acaricidal Effects of Essential Oils of Foeniculum vulgare Mill. (Apiales: Apiaceae) and Lavandula angustifolia Miller (Lamiales: Lamiaceae) against Tetranychus urticae Koch (Acari: Tetranychidae)

    OpenAIRE

    Asgar Ebadollahi; Jalal Jalali Sendi; Alireza Aliakbar; Jabraeil Razmjou

    2014-01-01

    Utilization of synthetic acaricides causes negative side-effects on nontarget organisms and environment and most of the mite species such as two spotted spider mite, Tetranychus urticae Koch, are becoming resistant to these chemicals. In the present study, essential oils of fennel, Foeniculum vulgare Mill., and lavender, Lavandula angustifolia Miller, were hydrodistilled using Clevenger apparatus and chemical composition of these oils was analyzed by GC-MS. Anethole (46.73%), limonene (13.65%...

  9. Realization of the Atkinson-Miller cycle in spark-ignition engine by means of the fully variable inlet valve control system

    OpenAIRE

    Żmudka Zbigniew; Postrzednik Stefan; Przybyła Grzegorz

    2014-01-01

    The theoretical analysis of the charge exchange process in a spark ignition engine has been presented. This process has significant impact on the effectiveness of engine operation because it is related to the necessity of overcoming the flow resistance, followed by the necessity of doing a work, so-called the charge exchange work. The flow resistance caused by the throttling valve is especially high during the part load operation. The open Atkinson-Miller cycle has been assumed as a model of ...

  10. Kapitaldekninig, risiko og avkastningskrav for nordiske forretningsbanker : Regulatoriske krav og bankenes finansieringskostnad : en empirisk analyse i et Modigliani & Miller-rammeverk

    OpenAIRE

    Høivik, Gunnar; Tønseth, Morten

    2014-01-01

    The newly agreed Basel framework will see banks come to use more equity capital to finance their assets. This has triggered warnings about the cost of requiring banks to use more equity. The question is whether the Modigliani-Miller propositions are relevant at all when thinking about bank capital regulation. The purpose of this dissertation has been mainly to investigate the relationship between change in risk, arising from exposure to general market movements, and loss-absorbing capital,...

  11. Evaluation of the Applicability of the Chapman-Miller Method on Variation of the Geomagnetic Total Intensity Field in Taiwan from 1988 to 2007

    OpenAIRE

    Chieh-Hung Chen; Ching-Ren Lin; Hsiao-Ling Chao; Horng-Yuan Yen; Jann-Yenq Liu; and Yih-Hsiung Yeh

    2009-01-01

    The solar (S) and lunar (L) variations of geomagnetic fields at the horizontal (H), declination (D), and the downward vertical component data (Z) are modeled by the Chap man-Miller method with four order harmonics. In this paper, we compare S and L variations of the geomagnetic total intensity field using a consistent method with 3-component data for seasonal variations (summer, winter, and equinox) for three distinct phases during the years 1988 - 2007. The results show that consistency in t...

  12. Book review of ‘Extraordinary anthropology : transformations in the field’ by Jean-Guy A. Goulet and Bruce Granville Miller, Lincoln, NE : University of Nebraska Press, 2007.

    OpenAIRE

    Mughal, Muhammad Aurang Zeb

    2010-01-01

    Just as diverse as cultures in the world with which anthropologists spend time being ‘‘participants’’, so varied are the experiences of these anthropologists, depending upon the circumstances in which they work. In sixteen essays of Extraordinary Anthropology: Transformations in the Field Jean-Guy A. Goulet of Saint Paul University in Ottawa and Bruce Granville Miller of the University of British Columbia have compiled experiential accounts of many anthropologists while encountering diverse c...

  13. Zooplankton and other data from net casts in the Kodiak Lease Area from the NOAA Ship MILLER FREEMAN as part of Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 30 October 1977 to 15 November 1977 (NODC Accession 7900068)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Zooplankton and other data were collected from net casts in the Kodiak Lease Area from the NOAA Ship MILLER FREEMAN from 30 October 1977 to 15 November 1977. Data...

  14. Zooplankton and other data from net casts from the NOAA Ship MILLER FREEMAN as part of Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 12 November 1975 to 26 November 1975 (NODC Accession 7601620)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Zooplankton and other data were collected from net casts from the NOAA Ship MILLER FREEMAN from 12 November 1975 to 26 November 1975. Data were collected by the...

  15. Physical, meteorological, and other data from surface sensors and CTD casts from the MILLER FREEMAN and other platforms as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 02 April 1976 to 18 June 1976 (NODC Accession 7601544)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Physical, meteorological, and other data were collected from surface sensors and CTD casts from the MILLER FREEMAN and other platforms from 02 April 1976 to 18 June...

  16. Fish survey, fishing duration, and other data from the NOAA Ship MILLER FREEMAN as part of Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 02 September 1976 to 09 October 1976 (NODC Accession 7700192)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish survey, fishing duration, and other data were collected from the NOAA Ship MILLER FREEMAN from 02 September 1976 to 09 October 1976. Data were submitted by the...

  17. Oceanographic station, meteorological and other data from bottle casts from the MILLER FREEMAN and other platforms as part of the Marine Resources Monitoring, Assessment and Prediction (MARMAP) project from 17 September 1969 to 24 August 1972 (NODC Accession 7300185)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Oceanographic station, meteorological, and other data were collected from bottle casts from the MILLER FREEMAN and other platforms from 17 September 1969 to 24...

  18. Plankton and other data collected from net casts in the Gulf of Alaska and Bering Sea from the NOAA Ship MILLER FREEMAN from 26 April 1976 to 31 May 1976 (NODC Accession 7700419)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Plankton and other data were collected using net casts in the Gulf of Alaska and Bering Sea from the NOAA Ship MILLER FREEMAN from 26 April 1976 to 31 May 1976....

  19. Marine invertebrate pathology and other data from the MILLER FREEMAN as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 24 August 1976 to 13 October 1976 (NODC Accession 7700664)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Marine invertebrate pathology and other data were collected from the MILLER FREEMAN. Data were collected by the Pacific Marine Evironmental Laboratory (PMEL) as...

  20. Fish pathology and other data from fish trawls in the Gulf of Alaska from the MILLER FREEMAN as part of Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 27 January 1977 to 10 February 1977 (NODC Accession 7700662)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish pathology and other data were collected from fish trawls in the Gulf of Alaska from the MILLER FREEMAN from 27 January 1977 to 10 February 1977. Data were...

  1. Fish pathology and other data from the NOAA Ship MILLER FREEMAN and other platforms as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 02 September 1976 to 27 August 1978 (NODC Accession 8000026)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish Pathology and other data were collected from the NOAA Ship MILLER FREEMAN and other platforms from 02 September 1976 to 27 August 1978. Data were collected by...

  2. Fish survey, fishing duration, and other data from net trawls from the MILLER FREEMAN and other platforms as part of Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 03 May 1975 to 04 August 1976 (NODC Accession 7800029)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish survey, fishing duration, and other data were collected from net trawls from the MILLER FREEMAN and other platforms from 03 May 1975 to 04 August 1976. Data...

  3. Benthic organism and other data from the NOAA Ship MILLER FREEMAN from the Gulf of Alaska as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 15 February 1979 to 24 February 1979 (NODC Accession 8100499)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Benthic organism and other data were collected in the Gulf of Alaska from the NOAA Ship MILLER FREEMAN by University of Alaska; Institute of Marine Science...

  4. Benthic organism and other data from the MILLER FREEMAN from the Bering Sea as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 02 April 1976 to 31 May 1976 (NODC Accession 7800537)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Benthic organism and other data were collected in the Bering Sea from the MILLER FREEMAN by University of Alaska; Institute of Marine Science (UAK/IMS). Data were...

  5. Benthic organism and other data from net casts from the MILLER FREEMAN as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 16 August 1975 to 20 October 1975 (NODC Accession 7601834)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Benthic organism and other data were collected from net casts from the MILLER FREEMAN from 16 August 1975 to 20 October 1975. Data were collected by the University...

  6. Miller Path Compensated Two-Stage Amplifier%一种米勒通路补偿的两级放大器

    Institute of Scientific and Technical Information of China (English)

    侯俊芳

    2013-01-01

    提出了一种“米勒通路补偿”(MPC)的两级放大器.基于米勒效应的分析,讨论米勒通路补偿的作用并将之应用于两级放大器结构.补偿后的放大器,在很小补偿电容(2 pF)的辅助下可以完成对大负载电容(100pF)的驱动.基于0.6 μm30 V BCD工艺模型的仿真结果显示,MPC放大器在驱动100 pF负载电容下达到直流增益75 dB,相位裕度62.4°,单位增益频率4.4 MHz.%Miller Path Compensated (MPC) two-stage amplifier is presented.Based on the study of Miller effect,Miller path compensation is discussed and used in two-stage amplifier to drive large load capacitor(100 pF)with small compensation capacitor (2 pF).Simulation results for 0.6 μm 30 V BCD process show dc gain of 75 dB,phase margin of 62.4° and unity gain frequency of 4.4 MHz.

  7. Syndrome de Miller Fisher avec anticorps anti GQ1b négatif au cours d'une pneumonie à Mycoplasma pneumoniae

    Science.gov (United States)

    Sini, Victor; Tegueu, Calixte Kuate; Nguefack, Séraphin; Boone, Mathieu; Roos-Weil, Richard

    2013-01-01

    Le Syndrome de Miller Fisher est caractérisé par l'association d'une ophtalmoplégie, d'une ataxie et d'une aréflexie ostéo-tendineuse. Une infection virale est le plus souvent retrouvée dans les jours ou semaines qui précèdent la symptomatologie. Nous rapportons un cas de syndrome de Miller Fisher survenu chez une femme de 75 ans, et ce au décours d'une infection pulmonaire à Mycoplasma pneumoniae. Les sérologies virales habituelles étaient négatives. Les anticorps anti GQ1b étaient absents. Il n'y avait pas de lésion du tronc cérébral à l'imagerie par résonnance magnétique. L’évolution clinique était favorable après perfusion d'immunoglobulines humaines polyvalentes et des macrolides en comprimés. La sérologie Mycoplasma pneumoniae doit être systématiquement recherchée dans le bilan du syndrome de Miller Fisher. PMID:24255728

  8. Tomato (Lycopersicon esculentum P. Miller compression due to "K" wood box closing Compressão de tomate (Lycopersicon esculentum P. Miller em função do fechamento da caixa de madeira tipo "K"

    Directory of Open Access Journals (Sweden)

    Rita de Fátima Alves Luengo

    2010-06-01

    Full Text Available Wood boxes kind "k" are the most used in table tomato (Lycopersicon esculentum P. Miller commercialization in Brazil. Due to the fruit accommodation process that occurs during the transport from the production place to the commercialization point, producers fill tomato boxes a little bit over its physical capacity, and they close it with wood strips fixed with nails. In order to prevent strips from cracking, it is common to keep them inside water before using, to increase flexibility. When boxes are opened, many fruits are cracked or kneaded in a significant part of their total area, and normally they are thrown away. The purpose of this paper was to quantify the compression tomato fruits are exposed to in consequence of the "k" box fill / closing system. For this study a special instrumented box was constructed with a scales plate located at the bottom, with a hydraulic load cell instrumented in the box. This instrument was then used to study the compression of fruits as the box is filled and the compression increase caused by the addition of its wooden lid. The "k" box closing system caused an initial compression increase 3.5 times the compression of the open tomato box, and during time as the fruits are substantially deformed. This compression was reduced two about two times de initial reference value. The consequence of this observed fruit compression is compatible with the fruit deformations and even cracks observed in the market, which are known to be relevant post harvest losses causes in the Brazilian tomato handling industry.Caixas de madeira do tipo "K" são as mais utilizadas na comercialização de tomate (Lycopersicon esculentum P. Miller de mesa no Brasil. Em razão do processo de acomodação dos frutos que ocorre durante o transporte desde o local de produção até o local de comercialização, os produtores enchem a caixa de tomate um pouco acima de sua capacidade física e a fecham com ripas de madeira e pregos. Para evitar

  9. A study of the effects of Cydonia oblonga Miller (Quince) on TNBS-induced ulcerative colitis in rats.

    Science.gov (United States)

    Minaiyan, M; Ghannadi, A; Etemad, M; Mahzouni, P

    2012-04-01

    Cydonia oblonga Miller (Quince) from Rosaceae family is a fruit tree cultivated in many countries mainly in Iran. This study was carried out to investigate the effect of quince juice (QJ) and quince hydroalcoholic extract (QHE) on ulcerative colitis (UC) induced by TNBS (trinitrobenzene sulfonic acid) in rats. Rats were grouped (n=6) and fasted for 36 h before colitis induction. TNBS was instilled into the colon with a hydroalcoholic carrier and then treatments were made for 5 days starting 6 h after colitis induction with different doses of QJ (200, 400, 800 mg/kg), QHE (200, 500 & 800 mg/kg) orally, QJ (400 mg/kg) and QHE (200 and 500 mg/kg) intraperitoneally. The colon tissue was removed and tissue damages were scored after macroscopic and histopathologic assessments. Albeit the examined doses of QJ and QHE were apparently effective to reduce the extent of UC lesions, only the greatest doses (500 and 800 mg/kg) resulted in significant alleviation. Weight/Length ratio as an illustrative of tissue inflammation and extravasation was also diminished with quince treatments while the results correlated with macroscopic and histopathologic evaluations. These data suggest that QJ and QHE were effective to diminish inflammation and ulcer indices in this murine model of acute colitis. Although QHE with different doses was effective in induced colitis, the dose and/or route of administration dependency was not confirmed. So quince fractions could be considered as a suitable anticolitic alternative, however further studies are needed to support this hypothesis for clinical setting. PMID:23181087

  10. Aqueous corrosion of olivine in the Mars meteorite Miller Range (MIL) 03346 during Antarctic weathering: Implications for water on Mars

    Science.gov (United States)

    Velbel, Michael A.

    2016-05-01

    Several nakhlites (clinopyroxenite meteorites from Mars) contain olivine phenocrysts with corrosion features identical in size, shape and distribution to the smaller etch-pits of well-characterized weathered terrestrial olivine. Miller Range (MIL) 03346 is an Antarctic nakhlite find, recovered after long exposure to Antarctic conditions. The distribution of discrete olivine etch-pits almost exclusively within a few hundred microns of allocation MIL 03346,171's documentably exposed surface suggests that they formed by terrestrial weathering in Antarctica. The small size of olivine etch-pits in MIL 03346,171 relative to commonly much larger etch-pits in even incipiently weathered terrestrial examples suggests that the duration of its exposure to weathering conditions was short, or the weathering conditions to which it was exposed did not favor olivine corrosion (in the form of etch-pit formation), or both. Time-scales for the formation of etch-pits, estimated from experimentally determined dissolution rates of olivine over a range of pHs, are comparable to the measured terrestrial age of the meteorite and short relative to the time available for possible similar corrosion on Mars. Etch-pits of the observed size on MIL 03346 olivine phenocrysts would be relatively easy to form supraglacially under brief episodic acidic Antarctic conditions, but the terrestrial age of MIL 03346 is long enough that its olivine might have been weathered to the observed state by englacial films of alkaline Antarctic water. The paucity of similar etch-pits in olivine from the interior of MIL 03346 suggests that olivine in this Mars meteorite was exposed to even less aqueous alteration after iddingsitization during its 1.3 billion years on Mars than its exterior was subjected to during its Pleistocene-Holocene exposure to Antarctic weathering conditions.

  11. Fenóis derivados da lignina, carboidratos e aminoaçúcares em serapilheira e solos cultivados com eucalipto e pastagem

    Directory of Open Access Journals (Sweden)

    Rodinei Facco Pegoraro

    2011-04-01

    Full Text Available O cultivo de espécies florestais como o eucalipto em solos ocupados por pastagens pode levar a alterações no processo de decomposição de resíduos vegetais e na formação da matéria orgânica do solo (MOS, principalmente por alterar a contribuição de diferentes compostos orgânicos e modificar a atividade e a diversidade microbiana. Neste sentido, o presente estudo teve o objetivo de avaliar alterações causadas pelo cultivo do eucalipto em compostos orgânicos, tais como: fenóis derivados de lignina, carboidratos e aminoaçúcares, visando identificar o estádio de decomposição e a contribuição de compostos de origem microbiana para a MOS em solos do litoral Norte do Espírito Santo em comparação àqueles de pastagem. Os resultados indicaram menor aporte de carboidratos e teor de lignina similar na serapilheira de eucalipto em comparação àqueles da pastagem. Os fenóis derivados de lignina, que se caracterizaram pela presença de compostos do grupo cinamil (ácidos ferúlico e p-coumárico em maior teor, refletiram em maior acúmulo destes compostos e carboidratos totais no solo de pastagem, embora os teores totais de lignina, COT, NT e aminoaçúcares tenham sido semelhantes entre os cultivos. Nos solos cultivados com eucalipto obteve-se maior contribuição de componentes de origem vegetal (menor relação H/P para a MOS que aqueles de origem microbiana em comparação aos solos sob pastagem. O teor de determinados aminoaçúcares, como a glucosamina, nos solos indicou que os fungos são mais abundantes que bactérias e actinomicetos, especialmente no solo de pastagem.

  12. CARACTERIZAÇÃO QUÍMICA E FÍSICO-QUÍMICA DA POLPA DO NONI (MORINDA CITRIFOLIA CULTIVADO NO ESTADO DO CEARÁ

    Directory of Open Access Journals (Sweden)

    Antonia Alaís da Silva CORREIA

    2011-12-01

    Full Text Available O presente trabalho teve por objetivo avaliar as características químicas e físico-químicas da polpa do noni cultivado no estado do Ceará. Frutos maduros provenientes de um plantio localizado na cidade Horizonte (Ceará-Brasil foram despolpados e a polpa extraída, embalada em sacos de polietileno, selados e armazenados a -20°C para posteriores análises. Foi determinada a composição centesimal: umidade (91,91%, carboidratos (0,63%, lipídeos totais (0,08%, proteínas (1,06%, cinzas (6,32%; fibra (1,76%, valor energético (30,25kcal.100g-1 e análises químicas e físico-químicas: pH (4,25, sólidos solúveis totais (9,2°Brix, acidez total titulável (0,63g.100g-1, SST/ AAT (14,66, vitamina C (122,54mg de AA.100g-1, açúcares totais (5,45g.100g-1, açúcares redutores (5,32g.100g-1; fenólicos totais (216,67mg de EAG.100g-1, antioxidante (6,27μmol. TEAC g-1, atividade de água (0,93; (AIR resíduo insolúvel em álcool (2,8g.100g-1, pectina (1,14g.100g-1, hemicelulose (0,25g.100g-1 e celulose +lignina (0,45g.100g-1. Os resultados mostram que a polpa de noni possui um baixo teor de proteína e lipídeo, é rica em carboidratos e apresenta uma significativa quantidade de antioxidantes, com destaque para a vitamina C e compostos fenólicos.

  13. Composição centesimal, compostos bioativos e atividade antioxidante de frutos de Morinda citrifolia Linn (noni cultivados no Paraná

    Directory of Open Access Journals (Sweden)

    G.F. PALIOTO

    2015-03-01

    Full Text Available O fruto de noni (Morinda citrifolia L. é consumido há milênios na medicina popular polinésia devido aos benefícios nutricionais e terapêuticos. O consumo de noni em outros países, incluindo o Brasil, cresceu vertiginosamente nos últimos anos em decorrência das atividades biológicas atribuídas a ingestão do suco da fruta, principalmente pela propriedade anticâncer. Contudo, a composição química da planta, que está relacionada com suas propriedades biológicas, é determinada pelo seu local de origem, e por influência do clima e do solo onde é cultivada. Neste sentido, este trabalho teve como objetivo analisar a polpa extraída de frutos maduros de noni cultivados em Maringá-PR. A análise da polpa in natura apresentou 89,16% de umidade, 0,75% de cinzas, 2,10% de proteínas, 2,19% de lipídios e 5,81% de carboidratos. Dos compostos bioativos, foram analisados antocianinas (1,39 mg.100 g-1 polpa, flavonoides amarelos (13,01 mg.100 g-1 polpa, carotenóides (0,45 mg.100 g-1 polpa e vitamina C (12,16 mg.100 g-1 polpa. Para fenólicos totais e atividade antioxidante foram preparados diferentes extratos, sendo que os maiores teores de fenólicos totais foram encontrados no extrato aquoso (1143,56 mg equivalente de ácido gálico (EAG.100 g-1, seguido do extrato etanólico (966,96 mg EAG.100 g-1, metanol/acetona (820,88 mg EAG.100 g-1 e metanólico (306,33 mg EAG.100 g-1. Os melhores resultados para antioxidantes, determinado pelo EC50 - concentração do extrato necessária para reduzir 50% do radical DPPH, foram encontrados nos extratos metanol/acetona (EC50 de 25,18 mg.mL-1 e metanólico (EC50 de 25,96 mg.mL-1. A atividade antioxidante dos frutos pode estar relacionada com o conteúdo de vitamina C, uma vez que os extratos com um menor conteúdo de fenóis totais foram aqueles que apresentaram menores valores de EC50.

  14. Adubação verde em tomateiro cultivado em sistema de agricultura orgânica / Green fertilization in tomato plant tilled in organic agriculture system

    Directory of Open Access Journals (Sweden)

    Cristiano André Pot

    2008-05-01

    Full Text Available O objetivo desse trabalho foi avaliar a produtividade de tomate-cereja em sistema de agricultura orgânica cultivado sob diferentes doses e épocas de aplicação da fi tomassa de ervilha forrageira, ervilhaca comum e crotalaria spectabilis. O experimento foi conduzido no município de Guarapuava, PR, no período de outubro de 2005 a fevereiro de 2006 em delineamento de blocos ao acaso. Os tratamentos foram: ØFT – sem adição de resíduos de adubos verdes; 3EF – 3,0 Mg ha-1 de fi tomassa de ervilha forrageira (Pisum sativum var. arvense; 6EF – 6,0 Mg ha-1 de fi tomassa de ervilha forrageira; 9EF – 9,0 Mg ha-1 de fi tomassa de ervilha forrageira; 3EF+3EC – 3,0 Mg ha-1 de fi tomassa de ervilha forrageira + 3,0 Mg ha-1 de fi tomassa de ervilhaca (Vicia sativa; 3EF+3EC+3CS – 3,0 Mg ha-1 de fi tomassa de ervilha forrageira + 3,0 Mg ha-1 de fi tomassa de ervilhaca + 3,0 Mg ha-1 de fi tomassa de crotalária (Crotalaria spectabilis. Houve resposta crescente linear nos tratamentos ØFT, 3EF, 6EF, 9EF para as variáveis produtividade de tomate, número de tomates por planta e massa média do fruto de tomate-cereja. Os resultados evidenciaram que a adição de fi tomassa de leguminosas foi efi ciente para aumentar a produtividade de tomateiro-cereja em sistema de agricultura orgânica. A aplicação de fi tomassa em uma única aplicação foi mais eficiente do que o parcelamento da fi tomassa ao longo do ciclo da cultura.

  15. BANCO DE SEMENTES DE PLANTAS DANINHAS EM SOLO CULTIVADO COM ADUBOS VERDES WEED SEED BANK IN GREEN-MANURE-CULTIVATED FIELDS

    Directory of Open Access Journals (Sweden)

    FRANCISCO JOSÉ SEVERINO

    2001-01-01

    Full Text Available Com o objetivo de estudar a composição de banco de sementes de plantas daninhas em solo cultivado com adubos verdes, desenvolveu-se um experimento em casa de vegetação do Departamento de Produção Vegetal da Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ/USP, Piracicaba (SP, entre dezembro de 1999 e fevereiro de 2000. As parcelas experimentais, compostas de 1 kg de solo amostrado por um trado de 4,3 cm de diâmetro, a partir da experimentação em campo, foram instaladas em bandejas de 30 x 20 x 5 cm. O delineamento experimental adotado foi o de blocos ao acaso com quatro repetições constando dos fatores: a adubos verdes - amendoim-forrageiro (Arachis pintoi Krapov. & W.C. Gregory, crotalária (Crotalaria juncea L., guandu-anão [Cajanus cajan (L. Millsp.] e testemunha sem capina; b plantas daninhas - capim-braquiária (Brachiaria decumbens Stapf., capim-colonião (Panicum maximum Jacq., picão-preto (Bidens pilosa L., além da vegetação espontânea. Avaliou-se o número de plantas daninhas emergidas aos 30 e 60 dias após a instalação do experimento. Os resultados permitem concluir que o banco de sementes de plantas daninhas foi significativamente reduzido com a utilização dos adubos verdes, constituindo em prática agrícola relevante para o manejo integrado de plantas daninhas.In order to evaluate the composition of a weed seed bank in a soil cultivated with green manure, an experiment was carried out from December, 1999, to February, 2000, in a greenhouse of the Plant Production Department, ESALQ/University of São Paulo, Piracicaba, Brazil. The experimental units were made of 30 x 20 x 5 cm trays, filled with 1.0 kg of soil. The soil was collected by a 4.3 cm core sampler from the experimental field where the green manure and weeds were grown. The experiment had a completely randomized block design with four replicates, green manure (Arachis pintoi Krapov. & W.C. Gregory, Crotalaria juncea L. and Cajanus cajan L

  16. Kodukoharaamatud / Voldemar Miller

    Index Scriptorium Estoniae

    Miller, Voldemar, 1911-2006

    1996-01-01

    Virve Orav. Narva-Jõesuu kodu-uurija pilguga. 1993. Helmut Elstrok. Padaorust Viru mereni. Viru-Nigula - Tln., 1994. Helmut Elstrok. Kõrvemaast Põhjarannani. Kuusalu - Tln.-Tapa, 1995. Lembit Arulo. Nii see olla võis... Põhjaranniku külaelust läbi aegade. Tln., 1994. Robert Nerman. Kopli. Miljöö, olustik, kultuurilugu 1918-1940. Tln., 1995. Ain Sarv. Varjusurmast tõusnud. Eestirootslaste ja Eestirootsi alade saatusest pärast Teist maailmasõda, Tln., 1994. Jaan Ellen. Kuhu kõik nad jäid? Tõsilugu Urvaste ürgorust. Tln., 1994

  17. Miller Fisher Syndrome

    Science.gov (United States)

    ... as loss of deep tendon reflexes and eye muscle weakness. Facial weakness, enlarged or dilated pupils and a decreased gag reflex on stimulation of the throat can be present in some patients. Tests of nerve conduction may show diminished activity of nerves that carry sensory information to the ...

  18. Bickerstaff’s brainstem encephalitis, Miller Fisher syndrome and Guillain-Barré syndrome overlap in an asthma patient with negative anti-ganglioside antibodies

    OpenAIRE

    Han Chongyu; Wang Yuan; Jia Jianping; Ji Xunming; Fredrickson Vance; Ding Yuchuan; Sun Wei; Xu Jia; Sun Yong-Xin

    2012-01-01

    Abstract Background Bickerstaff’s brainstem encephalitis (BBE), together with Miller Fisher syndrome (MFS) and Guillain-Barré syndrome (GBS) were considered to form a continuous clinical spectrum. An anti-GQ1b antibody syndrome has been proposed to underlie the common pathophysiology for the three disorders; however, other studies have found a positive anti-GM1 instead of anti-GQ1b antibody. Case presentation Here we report a 20-year-old male patient with overlapping BBE, MFS and GBS. The pat...

  19. Tragedy behind Daisy Miller' s Death: From the Perspective of Archetypal Criticism%Tragedy behind Daisy Miller' s Death: From the Perspective of Archetypal Criticism

    Institute of Scientific and Technical Information of China (English)

    董娅

    2012-01-01

    The conflicts happened among those American expatriates in Europe is the main plot in Daisy Miller and also the main reason for Daisy' s death. The archetypal analysis on the conflicts shows that those American expatriates, who are constantly in the paradoxical and conflicting mental state between home culture and European culture ,are much more eager to assert their identity, and thus Daisy, who behaves inconsistently with the European standard, becomes inevitably their target. Persona works a lot in those American expatriates and either their too much use of it or Daisy' s too little use of it mainly account for the tragic ending of the novella.

  20. TOURISM AS REFLECTED IN TRAVELLING WOMEN: A COMPARATIVE CULTURAL STUDY ON THE NOVELS OF DAISY MILLER, A PASSAGE TO INDIA, AND PADA SEBUAH KAPAL

    OpenAIRE

    Sri Hartiningsih; I Wayan Ardika; I Nyoman Kutha Ratna; I Gde Paramartha

    2012-01-01

    Travelling has occurred since a long time ago. Travelling is not only done by men butalso by women. In relation to travelling, travelling done by women is examined, especially thelandlady’s environment, as there is a relationship between the host and the guest. The researchproblems are (1) how is reflection of tourism in the travelling women portrayed on the novels ofDaisy Miller, A Passage to India, and Pada Sebuah Kapal?. (2) How are motivating andattracting factors related to tourism as re...

  1. "生命起源化学之父"——米勒%The Father of Prebiotic Chemistry S.L.Miller

    Institute of Scientific and Technical Information of China (English)

    郭晓强

    2009-01-01

    @@ 生命起源问题是困惑人类最大的难题之一,许多伟大的科学家都为探索它的答案而孜孜不倦,但现在离最终解决还有很大距离.1953年的米勒-尤里实验是一个里程碑式的事件,而且完成这个实验的米勒(S.L.Miller)当时才23岁.

  2. Clear Evidence of Carcinogenic Activity by a Whole-Leaf Extract of Aloe barbadensis Miller (Aloe vera) in F344/N Rats

    OpenAIRE

    Boudreau, Mary D.; Mellick, Paul W.; Olson, Greg R.; Felton, Robert P.; Thorn, Brett T.; Beland, Frederick A.

    2012-01-01

    Aloe barbadensis Miller (Aloe vera) is an herbal remedy promoted to treat a variety of illnesses; however, only limited data are available on the safety of this dietary supplement. Drinking water exposure of F344/N rats and B6C3F1 mice to an Aloe vera whole-leaf extract (1, 2, and 3%) for 13 weeks resulted in goblet cell hyperplasia of the large intestine in both species. Based upon this observation, 2-year drinking water studies were conducted to assess the carcinogenic potential of an Aloe ...

  3. Ab-initio simulations of higher Miller index Si:SiO2 interfaces for fin field effect transistor and nanowire transistors

    International Nuclear Information System (INIS)

    Models of three representative higher Miller index interfaces, Si(310):SiO2, Si(410):SiO2, and Si(331):SiO2, have been built by an ab-initio molecular dynamics method. We show that each interface can be made as a fully bonded network without any defects and has a reasonable electronic structure for use in fin field effect transistors or gate-all-around nanowire devices. The differences in numbers of oxygen bridges are attributed to the intermediate sub-oxide components and the atomic step structure. The interface bonding schemes to passivate different densities of dangling bonds on different facets are also analyzed

  4. 库拉索芦荟和木立芦荟叶的形态结构及有效成分含量的比较%Comparative of Morphology and Effective Composition Between the Leaves of Aloe vera L. and Aloe arborescens Mill

    Institute of Scientific and Technical Information of China (English)

    李景原; 王太霞; 刘贺君; 李明泽; 刘本举; 代磊

    2008-01-01

    应用植物解剖学和植物化学相结合的方法比较研究了3年生库拉索芦荟(Aloe vera L.)和木立芦荟(Aloe arborescens Mill)的形态结构和芦荟素、芦荟多糖等有效成分的含量.研究结果表明:(1)库拉索芦荟茎极短,叶丛生,成熟叶片长60~80 cm,质量400~550 g;木立芦荟茎高50~70 cm,叶互生,成熟叶片长40~50 cm,质量100~150 g.(2)两种芦荟叶都由表皮、同化组织、贮水组织和维管束组成.库拉索芦荟叶的贮水组织占横切面的90%以上,而木立芦荟叶的贮水组织仅占横切面的70%.(3)库拉索芦荟叶中芦荟素含量为1.46%,芦荟多糖含量为3.56%,宜作为芦荟多糖的原料;木立芦荟叶中芦荟素含量为2.15%,芦荟多糖含量为2.58%,宜作为芦荟素等蒽醌类物质的原料.研究结果为芦荟的引种栽培、采收和产品加工提供了科学依据.

  5. Desempenho de tambaqui cultivado em tanques-rede, em lago de várzea, sob diferentes taxas de alimentação Tambaqui growth reared in cages in a floodplain lake under different feeding rate

    OpenAIRE

    Edsandra Campos Chagas; Levy de Carvalho Gomes; Heitor Martins Júnior; Rodrigo Roubach; José Nestor de Paula Lourenço

    2005-01-01

    O objetivo deste trabalho foi avaliar o efeito da taxa de alimentação de 5%, 7,5% e 10% do peso vivo dia-1, sobre o desempenho e parâmetros metabólicos de tambaqui, Colossoma macropomum, cultivado em tanques-rede instalados em lago de várzea. Animais que receberam a taxa de alimentação de 5% do peso vivo dia-1, foram os que apresentaram melhor conversão alimentar e após 90 dias de cultivo e valores de proteínas totais plasmáticas significativamente mais baixos. O fornecimento de ração para ju...

  6. Fósforo num Cambissolo cultivado com cana-de-açúcar por longo tempo: I - fracionamento seqüencial Phosphorus in an Inceptsoil under long-term sugarcane: I - sequential fractionation

    OpenAIRE

    Jader Galba Busato; Luciano Pasqualoto Canellas; Ary Carlos Xavier Velloso

    2005-01-01

    A caracterização dos diversos compartimentos de P, além de avaliar frações não monitoradas regularmente pelos métodos de diagnose da fertilidade do solo, pode favorecer o entendimento do ciclo desse nutriente. O objetivo deste trabalho foi avaliar as alterações nos compartimentos de P de um Cambissolo Háplico Ta eutrófico vértico, cultivado com cana-de-açúcar por longo tempo. Em uma das áreas de estudo, não foi realizada a despalha da cana utilizando fogo por ocasião da colheita durante 55 an...

  7. INFLUENCIA DE LA FERTILIZACIÓN NITROGENADA SOBRE LA MICROFLORA EDÁFICA Y ALGUNOS INDICADORES DEL CRECIMIENTO Y EL RENDIMIENTO DE Coffea canephora Pierre CULTIVADO EN SUELO PARDO ÓCRICO SIN CARBONATOS

    OpenAIRE

    Pérez, A.; Bustamante, C; P. Rodríguez; R. Viñals

    2005-01-01

    Se estudió el efecto de la fertilización nitrogenada sobre la actividad microbiana y algunos indicadores del crecimiento y la producción de Coffea canephora Pierre, cultivado a 3x1.5 m, en un suelo Pardo ócrico sin carbonatos durante 1996- 2000. En un diseño de bloque al azar con cuatro réplicas se evaluaron cinco sistemas de fertilización nitrogenada: N0 (testigo), N1 (30, 45 y 50 kg.ha-1.año-1), N2 (60, 90 y 100 kg.ha-1.año-1), N3 (90, 135 y 150 kg.ha-1.año-1) y N4 (120,180 y 200 kg.ha-1.añ...

  8. Uso de leitos cultivados de fluxo vertical por batelada no pós-tratamento de efluente de reator anaeróbio compartimentado Post-treatment of effluent of anaerobic baffled reactor using batchwise vertical flow constructed wetland beds

    Directory of Open Access Journals (Sweden)

    Marcelo Mazzola

    2005-06-01

    Full Text Available Neste trabalho avaliou-se o desempenho de um Reator Anaeróbio Compartimentado (RAC de duas câmaras em série, seguido de três leitos cultivados (constructed wetlands de fluxo vertical por batelada. A unidade experimental, em escala piloto, foi instalada na Faculdade de Engenharia Agrícola - UNICAMP, Campinas, SP, Brasil. O volume total do reator era de 2,3 m³ (TDH de 12 h. O efluente do RAC foi tratado em três leitos, dois cultivados com macrófitas (gêneros Typha sp. e Eleocharis sp. e um utilizado como controle (não cultivado. Os leitos, com 2,0 m³ cada um e brita #2 (24 - 35 mm como meio suporte, operaram com fluxo vertical por batelada (com tempos de reação de 24, 48, 72 e 96 h. Na avaliação do RAC, observou-se tendência de estabilização dos parâmetros pH, alcalinidade, ácidos voláteis, sólidos sedimentáveis e suspensos totais, porém a remoção de DQO revelou-se limitada (50%. Nos leitos cultivados o aumento do tempo de reação (até 72 h foi acompanhado pelo aumento de remoção de turbidez, DQO, fósforo e nitrato. O melhor desempenho de remoção de fósforo total foi obtido no leito vegetado com Typha sp para os tempos de 72 e 96 h, respectivamente, de 30 e 25%.This study evaluated the performance of vertical constructed wetlands treating effluent of anaerobic baffled reactor. The anaerobic reactor volume was 2.3 m³; it was operated with daily flow of 4.6 m³ (12 hours Hydraulic Retention Time. The reactor effluent was split into three wetlands beds, two of them cultivated with macrophytes (Typha sp. and Eleocharis sp., and one control. The wetlands were operated as a batch reactor. The medium utilized was gravel, the size ranging from 7 to 12 mm. The reaction time for each cycle (filling - reaction - drainage was 24, 48, 72, and 96 h. The anaerobic reactor achieved the following removal rates: settable solids, 93%; suspended solids, 80%; and COD 39%. The increase in reaction time (up to 72 h for the constructed

  9. Análise do óleo essencial de folhas de três quimiotipos de Lippia alba (Mill.) N. E. Br. (Verbenaceae) cultivados em condições semelhantes

    OpenAIRE

    E.S. Tavares; L.S. Julião; Lopes, D; H.R. Bizzo; C.L.S. Lage; S.G. Leitão

    2005-01-01

    A composição do óleo essencial de Lippia alba apresenta variação quantitativa e qualitativa, levando à separação em quimiotipos. O trabalho tem como objetivo analisar o óleo essencial de folhas de três quimiotipos de Lippia alba, provenientes de diferentes regiões do Brasil, cultivados em condições semelhantes, a fim de verificar se as diferenças na composição do óleo devem-se a fatores ambientais ou a variação genética infraespecífica e se a floração influencia o rendimento e a composição do...

  10. Adubação nitrogenada e potássica do Aster ericoides cultivado em ambiente protegido Nitrogen and potassium fertilization of Aster ericoides cultivated in greenhouse

    Directory of Open Access Journals (Sweden)

    Mônica Sartori de Camargo

    2008-06-01

    Full Text Available O Aster ericoides é uma flor de corte recentemente introduzida no Brasil com grande potencial de produção e aceitação pelo mercado consumidor, mas são escassas as informações sobre o manejo da adubação, prática fundamental para desenvolvimento e qualidade da planta. O objetivo deste trabalho foi avaliar adubações nitrogenadas e potássicas na produção e absorção de nutrientes pelo Aster ericoides (White Master cultivado em Latossolo Amarelo eutrófico em condições de estufa. O experimento foi instalado em delineamento de blocos completos em esquema fatorial (4x4 com 4 doses de N (0; 50; 75 e 100 kg ha-1 N, 4 doses de K (0; 52; 78; 104 kg ha-1 K2O e 4 repetições no segundo ciclo da planta. A população foi de 400 mil plantas por hectare. Após 105 dias, foram colhidas dez hastes de cada parcela. A produção de matéria seca de hastes e folhas, número de flores por haste, número de ramificações laterais por haste não foram influenciadas pelos tratamentos. A dose de 46 kg ha-1 de N proporcionou máxima produção de matéria seca de flores (19,40 g planta-1 e a adubação com potássio não influenciou as características avaliadas. Estes resultados mostraram que é preciso ser cauteloso com as altas adubações de N e K no solo estudado para não reduzir a produção de matéria seca de flores. Mais estudos sobre a fertilização nitrogenada e potássica devem ser realizados para definir a recomendação de doses adequadas para o cultivo de Aster ericoides em condições tropicais.The Aster ericoides is a cut flower crop recently introduced into Brazil. It has great production potential and acceptation by consumer market but exist little information about fertilization management, essential to its development and quality. In this work we evaluated the nitrogen and potassium fertilization on dry matter yield and nutrient absorption by Aster ericoides (White Master growing in a Typic Hapludox soil under greenhouse

  11. Índice de qualidade em um latossolo amarelo coeso cultivado com citros Quality index in a cohesive yellow latosol cultivated with citrus

    Directory of Open Access Journals (Sweden)

    José Fernandes de Melo Filho

    2009-12-01

    Full Text Available O Brasil é o maior produtor mundial de citros e exportador de suco concentrado de laranja. Na região Nordeste, a citricultura tem grande importância social, onde é cultivada predominantemente por produtores com áreas menores do que 10 hectares, em solos como caráter coeso. Na Bahia, a citricultura é explorada sobre diversas condições tecnológicas, e especialmente nos Tabuleiros Costeiros os pomares têm baixa longevidade e produtividade em função das limitações dos solos coesos à produção agrícola. Este trabalho tem como objetivo determinar a qualidade física e química de um Latossolo Amarelo Coeso cultivado com citros. O estudo foi realizado na região do Recôncavo Baiano, em um pomar comercial de laranja "Pera" (Citrus sinensis L. Osb. sob porta-enxerto de limão-cravo (Citrus limonia L. Osb.. Para a determinação do índice de qualidade do solo (IQS, utilizou-se o método proposto por Karlen & Stott (1994, e amostras foram coletadas em duas camadas: 0,00 - 0,20 m e 0,20 - 0,40 m. Os resultados mostraram que o Latossolo Amarelo Coeso sob manejo tradicional para a cultura de citros apresentou índice de qualidade regular, com limitações determinadas pela elevada resistência do solo à penetração, baixa permeabilidade à água e baixo teor de matéria orgânica, o que resulta em limitações para permitir o crescimento e o aprofundamento do sistema radicular e prover o fornecimento e a disponibilidade de água para as plantas cítricas.Brazil is the greatest citrus producer and exporter of concentrated orange juice in the world. In the Northeast, the citriculture has a large social importance for farming family, which is predominantly cultivated for small farmers. In Bahia state the citriculture has been exploited under several technology conditions and especially in the Costal table lands soil the orchards have low longevity and productivity based on the cohesive soil limitations for rural production. The purpose of

  12. Flutuação populacional de Rotylenchulus reniformis em solo cultivado com algodoeiro Population fluctuation of Rotylenchulus reniformis in soil cultivated with cotton

    Directory of Open Access Journals (Sweden)

    Guilherme Lafourcade Asmus

    2009-01-01

    Full Text Available O objetivo deste trabalho foi caracterizar a flutuação populacional de nematoide reniforme (Rotylenchulus reniformis em solo cultivado com algodoeiro, em função de variáveis edafoclimáticas. Em uma área naturalmente infestada - com média de 680 nematoides por 200 cm³ de solo, em Aral Moreira, MS - foi estabelecida uma grade de amostragem com 30 pontos, equidistantes em 50 m. No período de outubro de 2004 a junho de 2006, amostras de solo (0,0-0,2 m e 0,2-0,4 m foram coletadas mensalmente, para avaliação da abundância e composição dos diferentes estágios da população do nematoide. Foram também mensuradas a precipitação, a temperatura e a umidade do solo a 0,15 e 0,30 m. Foi possível observar que a densidade e a composição populacional de R. reniformis são influenciadas pela presença de plantas de algodoeiro. Maior abundância desse nematoide foi encontrada à profundidade de 0,2-0,4 m. A precipitação e a umidade do solo pouco influenciaram a população de R. reniformis. A temperatura do solo, a 0,15 e 0,30 m de profundidade, correlaciona-se com a população de R. reniformis a 0,2-0,4 m de profundidade.The objective of this work was to determine the population fluctuation of reniform nematodes (Rotylenchulus reniformis in a cotton production area as affected by soil and climate conditions. A grid of 30 sampling sites, equidistant in 50 m from each other, was established in a field naturally infested - with an average of 680 reniform nematodes per 200 cm³ soil, in Aral Moreira county, Mato Grosso do Sul, Brazil. Soil samples at 0.0-0.2 and 0.2-0.4 m depths were collected monthly on each sampling site, between October 2004 and June 2006, for the evaluation of nematode abundance and population composition. Measurements of soil temperature and moisture at 0.15 and 0.30 m depth and rainfall were made in each sampling site. It was observed that cotton plants play important roles in the abundance and composition of reniform

  13. Two-Stage Mucogingival Surgery with Free Gingival Autograft and Biomend Membrane and Coronally Advanced Flap in Treatment of Class III Millers Recession.

    Science.gov (United States)

    Rath, Avita; Varma, Smrithi; Paul, Renny

    2016-01-01

    Introduction. Gingival recession is an apical shift of the gingival margin with exposure of the root surface. This migration of the marginal tissue leads to esthetic concerns, dentin hypersensitivity, root caries, and cervical wear. It is, paradoxically, a common finding in patients with a high standard of oral hygiene, as well as in periodontally untreated populations with poor oral hygiene. Changing the topography of the marginal soft tissue in order to facilitate plaque control is a common indication for root coverage procedures and forms a major aspect of periodontal plastic surgeries. The regeneration of a new connective tissue attachment to denuded root surface is by allowing the selective coronal regrowth of periodontal ligament cells while excluding the gingival tissues from the root during wound healing by means of a barrier membrane. Case Presentation. This case reports a two-stage surgical technique for treatment of Miller's class III defect using free gingival autograft and type I absorbable collagen membrane (BioMend®, Zimmer Dental, USA)(§). Conclusions. The 6-month follow-up of the case showed a significant increase in attached gingiva suggesting it as a predictable alternative in the treatment of Millers class III defects. PMID:27525131

  14. Comparison of the Success of Two Techniques for the Endotracheal Intubation with C-MAC Video Laryngoscope Miller Blade in Children: A Prospective Randomized Study

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    Renu Sinha

    2016-01-01

    Full Text Available Background. Ease of endotracheal intubation with C-MAC video laryngoscope (VLS with Miller blades 0 and 1 has not been evaluated in children. Methods. Sixty children weighing 3–15 kg with normal airway were randomly divided into two groups. Intubation was done with C-MAC VLS Miller blade using either nonstyletted endotracheal tube (ETT (group WS or styletted ETT (group S. The time for intubation and total procedure, intubation attempts, failed intubation, blade repositioning or external laryngeal maneuver, and complications were recorded. Results. The median (minimum/maximum time for intubation in group WS and group S was 19.5 (9/48 seconds and 13.0 (18/55 seconds, respectively (p=0.03. The median (minimum/maximum time for procedure in group WS was 30.5 (18/72 seconds and in group S was 24.5 (14/67 seconds, respectively (p=0.02. Intubation in first attempt was done in 28 children in group WS and in 30 children in group S. Repositioning was required in 14 children in group WS and in 7 children in group S (p=0.06. There were no failure to intubate, desaturation, and bradycardia in both groups. Conclusion. Styletted ETT significantly reduces time for intubation and time for procedure in comparison to nonstyletted ETT.

  15. Taxonomic review of the genus Chamaemelum Miller (Asteraceae in the Iberian peninsula and the Balearic lslands

    Directory of Open Access Journals (Sweden)

    Benedí i González, Carles

    1988-01-01

    Full Text Available A taxonomic review of the genus Chamaemelum Miller (Asteraceae in the Iberian peninsula and the Balearic Islands is carried out. Two changes in nomenclature are proposed: Chamaemelum nobile ( L. All. forma discoideum (Willk. comb. & stat. nov. and C. fuscatum (Brot. Vasc. forma minor (Hoffmanns. & Link comb. & stat. nov. For each taxon the correct name as well as the corresponding synonyms are given. A dichotomic key of the recognized taxa and a list of the herharium sheets studied are provided.

    Se realiza una revisión taxonómica del género Chamaemelum Miller (Asteraceae en la Península Ibérica e Islas Baleares. Se proponen dos cambios nomenclaturles: Chamaemelum nobile (L. All. forma discoideum (Willk. comb. & stat. nov. y C. fuscatum (Brot. Vasc. forma minor (Hoffmanns. & Link comb. & stat. nov. Para cada taxon se da el nombre correcto, así como las correspondientes sinonimias. Se adjunta una clave dicotómica de los táxones reconocidos y una relación de los testimonios de herbario estudiados.

  16. “A source of satisfaction to all Jews, wherever they may be living”. Louis Miller between New York and Tel Aviv, 1911

    Directory of Open Access Journals (Sweden)

    Ehud Manor

    2011-10-01

    Full Text Available Although throughout the middle-ages Jews used to live in urban environment more than non-Jews, urbanization process in the 19th century was as critical to Jewish modern history as in other cases. Modernization, in all aspects, had a deep impact on Jewish demography, socio-economic life and self understanding. On the same time Jews were immigrating by the millions to the “new world” (mainly to the United States, a small current of Jews was heading to Palestine (Eretz Israel if to use their specific term. As opposed to a common understanding of Zionism, the future city and the neo-urbanization of the Jews – and not only the new villages (Moshavot, Kibbutzim, Moshavim – was a main Zionist goal. This article describes one of the first comprehensive observations of these issues, as seen from the eyes of Louis Miller, himself a Jewish immigrant that settled in the outmost city of the modern world: New York. In 1911 he paid a visit to the one-year-old Tel Aviv, and managed to see in this new modest garden-city the cradle of the Zionist revolution. Not less important: Miller understood as early as 1911, the crucial role Jewish settlements in Palestine would have in the crystallization of modern Jewish peoplehood. Tel Aviv took major part in this development. It still does.

  17. Two-Stage Mucogingival Surgery with Free Gingival Autograft and Biomend Membrane and Coronally Advanced Flap in Treatment of Class III Millers Recession

    Science.gov (United States)

    Paul, Renny

    2016-01-01

    Introduction. Gingival recession is an apical shift of the gingival margin with exposure of the root surface. This migration of the marginal tissue leads to esthetic concerns, dentin hypersensitivity, root caries, and cervical wear. It is, paradoxically, a common finding in patients with a high standard of oral hygiene, as well as in periodontally untreated populations with poor oral hygiene. Changing the topography of the marginal soft tissue in order to facilitate plaque control is a common indication for root coverage procedures and forms a major aspect of periodontal plastic surgeries. The regeneration of a new connective tissue attachment to denuded root surface is by allowing the selective coronal regrowth of periodontal ligament cells while excluding the gingival tissues from the root during wound healing by means of a barrier membrane. Case Presentation. This case reports a two-stage surgical technique for treatment of Miller's class III defect using free gingival autograft and type I absorbable collagen membrane (BioMend®, Zimmer Dental, USA)§. Conclusions. The 6-month follow-up of the case showed a significant increase in attached gingiva suggesting it as a predictable alternative in the treatment of Millers class III defects. PMID:27525131

  18. O PODER EXPLANATÓRIO DA TIPOLOGIA DE MILLER E DESS: UMA COMPARAÇÃO NA INDÚSTRIA FARMACÊUTICA BRASILEIRA

    Directory of Open Access Journals (Sweden)

    Augusto Cesar Arenaro e Mello Dias

    2007-08-01

    Full Text Available Este estudo tem por objetivo examinar as diferenças de desempenho entre grupos estratégicos para verificar as implicações nos resultados das empresas em razão do posicionamento estratégico adotado. Utilizando um banco de dados com informações da indústria farmacêutica brasileira de 1999 a 2002, o artigo toma por base o estudo de Miller e Dess sobre tipologias e compara seus resultados com a pesquisa de Cohen (2004, baseada na tipologia de Porter, a fim de determinar qual delas explica melhor esse segmento industrial. Os resultados obtidos sugerem que os melhores desempenhos pertencem aos grandes laboratórios estrangeiros que fabricam medicamentos de marca e utilizam estratégias simultâneas de baixo custo e diferenciação em um escopo amplo de atuação de mercado. Os resultados mostram ainda indícios de que a tipologia de Miller e Dess descreve o posicionamento estratégico das empresas na indústria farmacêutica brasileira melhor do que a tipologia de Porter.

  19. Fauna parasitária de tambaqui Colossoma macropomum (Characidae) cultivado em tanque-rede no estado do Amapá, Amazônia oriental Parasitic fauna of tambaqui Colossoma macropomum(Characidae) farmed in cages in the State of Amapá, eastern Amazon

    OpenAIRE

    Evandro Freitas Santos; Marcos Tavares-Dias; Douglas Anadias Pinheiro; Ligia Rigôr Neves; Renata das Graças Barbosa Marinho; Márcia Kelly Reis Dias

    2013-01-01

    O objetivo principal deste trabalho foi estudar a parasitofauna e a relação hospedeiro- parasito em tambaqui Colossoma macropomum cultivados em tanques-rede no Rio Matapi, município de Santana, estado do Amapá, região da Amazônia oriental, Brasil. Foram examinados 60 tambaquis, dos quais 96,7% estavam parasitados por protozoários Ichthyophthirius multifiliis (Ciliophora) e Piscinoodinium pillulare (Dinoflagellida), monogenoideas Mymarotheciun boegeri e Anacanthorus spathulatus (Dactylogyridae...

  20. Subepithelial Connective Tissue Graft in Combination with a Tunnel Technique for the Treatment of Miller Class II and III Gingival Recessions in Mandibular Incisors: Clinical and Esthetic Results.

    Science.gov (United States)

    Nart, Jose; Valles, Cristina

    2016-01-01

    There is limited evidence regarding the effect of the subepithelial connective tissue graft (SCTG) on root coverage in the mandibular anterior region. A sample of 15 Miller Class II and III recessions were treated in 15 patients using a SCTG with a tunnel technique. After a mean follow-up of 20.53 months, the mean percentage of root coverage was 83.25% for all treated recessions. Furthermore, a statistically significant increase of keratinized tissue was observed at the end of the evaluation period (2.66 mm; P = .001). The combination of tunnel technique and SCTG should be considered a treatment option to obtain root coverage in mandibular incisors with Class II and III recession defects. PMID:27333018

  1. Acetylcholine suppresses shoot formation and callusing in leaf explants of in vitro raised seedlings of tomato, Lycopersicon esculentum Miller var. Pusa Ruby.

    Science.gov (United States)

    Bamel, Kiran; Gupta, Rajendra; Gupta, Shirish C

    2016-06-01

    We present experimental evidence to show that acetylcholine (ACh) causes decrease in shoot formation in leaf explants of tomato (Lycopersicon esculentum Miller var Pusa Ruby) when cultured on shoot regeneration medium. The optimum response was obtained at 10(-4) M ACh-enriched medium. ACh also causes decrease in percentage of cultures forming callus and reduces the callus mass. Inhibitors of enzymatic hydrolysis of ACh, neostigmine and physostigmine, also suppresses callogenesis and caulogenesis. On the other hand, the breakdown products of Ach, choline and acetate, do not alter the morphogenic response induced on the shoot regeneration medium. Neostigmine showed optimal reduction in shoot formation at 10(-5) M. The explants cultured on neostigmine augmented medium showed decline in the activity of ACh hydrolyzing enzyme acetylcholinesterase. ACh and neostigmine added together showed marked reduction in callus mass. These results strongly support the role of ACh as a natural regulator of morphogenesis in tomato plants. PMID:27348536

  2. TOURISM AS REFLECTED IN TRAVELLING WOMEN: A COMPARATIVE CULTURAL STUDY ON THE NOVELS OF DAISY MILLER, A PASSAGE TO INDIA, AND PADA SEBUAH KAPAL

    Directory of Open Access Journals (Sweden)

    Sri Hartiningsih

    2012-11-01

    Full Text Available Travelling has occurred since a long time ago. Travelling is not only done by men butalso by women. In relation to travelling, travelling done by women is examined, especially thelandlady’s environment, as there is a relationship between the host and the guest. The researchproblems are (1 how is reflection of tourism in the travelling women portrayed on the novels ofDaisy Miller, A Passage to India, and Pada Sebuah Kapal?. (2 How are motivating andattracting factors related to tourism as reflected in the travelling women articulated on the novelsof Daisy Miller, A Passage to India, and Pada Sebuah Kapal?. (3 How do cultural barriersoccur in tourism as reflected in the travelling women on Daisy Miller, a Passage to India, andPada Sebuah Kapal novel? In general, this research is to find out the comparison of travellingdone by women. Specifically, it is to discover the reflection of tourism, how the motivating andattracting factors and cultural barriers occur in tourism as reflected in the travelling done bywomen.This research is conducted on three novels, Daisy Miller written by Henry James, APassage To India by E.M. Forster, and Pada Sebuah Kapal by NH. Dini called comparativeliterature showing the continents of America, Europe and Asia. Discussing the three continents,this research is called global literature. Hermeneutic method was used to interpret the content ofthose three novels by employing deconstruction, postcolonial and feminism theories. The maindata were taken from those novels and the location of the research was both at private librariesand state libraries or institutions and websites. To support the main data, secondary data werealso needed, which in this case, were obtained by interviewing the women who have travelledabroad. Then the results were formally and informally presented.The findings show that the reflection of tourism in travelling done by women is representedby family companion, and that the means of transportation to

  3. Ab-initio simulations of higher Miller index Si:SiO{sub 2} interfaces for fin field effect transistor and nanowire transistors

    Energy Technology Data Exchange (ETDEWEB)

    Li, Hongfei; Guo, Yuzheng; Robertson, John [Engineering Department, Cambridge University, Cambridge CB2 1PZ (United Kingdom); Okuno, Y. [Taiwan Semiconductor Manufacturing Company (TSMC), Hsinchu Science Park, Hsinchu, Taiwan (China)

    2016-02-07

    Models of three representative higher Miller index interfaces, Si(310):SiO{sub 2}, Si(410):SiO{sub 2}, and Si(331):SiO{sub 2}, have been built by an ab-initio molecular dynamics method. We show that each interface can be made as a fully bonded network without any defects and has a reasonable electronic structure for use in fin field effect transistors or gate-all-around nanowire devices. The differences in numbers of oxygen bridges are attributed to the intermediate sub-oxide components and the atomic step structure. The interface bonding schemes to passivate different densities of dangling bonds on different facets are also analyzed.

  4. Better P-curves: Making P-curve analysis more robust to errors, fraud, and ambitious P-hacking, a Reply to Ulrich and Miller (2015).

    Science.gov (United States)

    Simonsohn, Uri; Simmons, Joseph P; Nelson, Leif D

    2015-12-01

    When studies examine true effects, they generate right-skewed p-curves, distributions of statistically significant results with more low (.01 s) than high (.04 s) p values. What else can cause a right-skewed p-curve? First, we consider the possibility that researchers report only the smallest significant p value (as conjectured by Ulrich & Miller, 2015), concluding that it is a very uncommon problem. We then consider more common problems, including (a) p-curvers selecting the wrong p values, (b) fake data, (c) honest errors, and (d) ambitiously p-hacked (beyond p < .05) results. We evaluate the impact of these common problems on the validity of p-curve analysis, and provide practical solutions that substantially increase its robustness. PMID:26595842

  5. Micropropagação e composição química do óleo essencial de Lavandula Angustifolia Miller

    OpenAIRE

    Machado, Marília Pereira

    2013-01-01

    Resumo: A espécie Lavandula angustifolia Miller apresenta características medicinais e aromáticas e apresenta-se com importância econômica devido à produção de óleo essencial. O mesmo tem destaque em indústrias de perfumaria, cosmética, farmacêutica, alimentos e higiene pessoal, em razão da presença dos constituintes linalol e acetato de linalila. Assim este trabalho teve por objetivo desenvolver um protocolo de micropropagação para a propagação normal de mudas e caracterizar o óleo essencial...

  6. A Case of Concurrent Miller-Dieker Syndrome (17p13.3 Deletion) and 22q11.2 Deletion Syndrome.

    Science.gov (United States)

    Atwal, Paldeep S; Macmurdo, C

    2015-12-01

    Features of Miller-Dieker syndrome (MDS, 17p13.3 deletion syndrome, LIS1-associated lissencephaly) include classic lissencephaly, microcephaly, cardiac malformations, growth restriction, and characteristic facial changes. Individuals with 22q11.2 deletion syndrome (DiGeorge syndrome or velocardiofacial syndrome) are known to have congenital cardiac malformations (in particular conotruncal defects), palatal abnormalities (especially velopharyngeal insufficiency), hypocalcemia, immune deficiency, learning disabilities, and characteristic facial features. This case report describes phenotypic characteristics of a patient with extremely rare instance of having both MDS and 22q11.2 deletion syndrome that is unique in the medical literature. Prognosis in this concurrent phenotype is poor with our patient suffering from several malformations seen in both conditions and expiring in the neonatal period. PMID:27617133

  7. Soil Organic Matter Quality Indicators in a Cultivated Andisol Indicadores de Calidad de la Materia Orgánica del Suelo en un Andisol Cultivado

    Directory of Open Access Journals (Sweden)

    Erick Zagal

    2005-06-01

    Full Text Available Agricultural practices influence the dynamics of soil organic matter (MOS and its fractions. In this study, the following labile fractions of soil organic matter were determined: free light fraction (FLL, intra-aggregate light fraction (FLI, microbial biomass and mineralized C-CO2, on volcanic soil with different rotations, and later their use was evaluated as biological indicators of the impact of agricultural practices on the soil. The study was carried out in an eight year field experiment, with different productive systems (rotations in a randomized complete block design. The free light fraction (FLL was determined by density fractionation with NaI (1.8 g cm-3, and the intra-aggregate light fraction (FLI was obtained by sonication (1,500 J s-1. Microbial biomass was quantified using the chloroform fumigation-incubation (FI technique, and the basal soil respiration (C-CO2 evolution was determined by incubation for a 10-day period. Increased soil use intensity decreased (P ≤ 0.05 C and N FLL contents, from 1.69 g C-FLL kg-1 soil (5-year rotation with alfalfa, Medicago sativa L., to 0.49 g C-FLL kg-1 (annual crop rotation. However, these contents in FLI did not show a clear and consistent tendency (P ≤ 0.05. Soil biomass C and N decreased (P ≤ 0.05 with higher soil use intensity, from 551 to 264 μg C-CO2 g soil-1 and from 106 to 35 μg N-(NO3- + NH4+ g soil-1, respectively. The three studied indices were appropriate indicators to determine changes in soil organic matter quality as a result of agricultural practices.El manejo agronómico influye en la dinámica de la materia orgánica del suelo (MOS y sus diferentes fracciones. En este estudio se determinaron fracciones activas de la MOS: fracción liviana libre (FLL, fracción liviana intraagregados (FLI, biomasa microbiana y C-CO2 mineralizado, en un suelo volcánico cultivado con distintas rotaciones, y posteriormente se evaluó su uso como indicadores biológicos del impacto del

  8. CONSERVACIÓN DE FRESA (Fragaria x ananassa Duch cv. Camarosa) MEDIANTE LA APLICACIÓN DE RECUBRIMIENTOS COMESTIBLES DE GEL MUCILAGINOSO DE PENCA SÁBILA (Aloe barbadensis Miller) Y CERA DE CARNAÚBA CONSERVATION OF STRAWBERRY (Fragaria x ananassa Duch cv. Camarosa) BY EDIBLE COATING APPLICATION OF SABILA GEL MUCILAGE (Aloe barbadensis Miller) AND CARNAUBA WAX

    OpenAIRE

    Jorge I RESTREPO F; Iván D ARISTIZÁBAL T

    2010-01-01

    La fresa es un fruto de elevada aceptación entre los consumidores, y como cultivo ofrece una permanencia significativa durante todos los meses del año, con buen posicionamiento en sus precios. El objetivo de este estudio fue aumentar la vida útil de la fresa (Fragaria x ananassa Duch cv. Camarosa), mediante la aplicación de dos recubrimientos comestibles desarrollados a partir del gel mucilaginoso de penca sábila (Aloe barbadensis Miller) y cera de carnaúba. A partir de los resultados obtenid...

  9. Comparison of supercritical fluid extraction and ultrasound-assisted extraction of fatty acids from quince (Cydonia oblonga Miller) seed using response surface methodology and central composite design.

    Science.gov (United States)

    Daneshvand, Behnaz; Ara, Katayoun Mahdavi; Raofie, Farhad

    2012-08-24

    Fatty acids of Cydonia oblonga Miller cultivated in Iran were obtained by supercritical (carbon dioxide) extraction and ultrasound-assisted extraction methods. The oils were analyzed by capillary gas chromatography using mass spectrometric detections. The compounds were identified according to their retention indices and mass spectra (EI, 70eV). The experimental parameters of SFE such as pressure, temperature, modifier volume, static and dynamic extraction time were optimized using a Central Composite Design (CCD) after a 2(5) factorial design. Pressure and dynamic extraction time had significant effect on the extraction yield, while the other factors (temperature, static extraction time and modifier volume) were not identified as significant factors under the selected conditions. The results of chemometrics analysis showed the highest yield for SFE (24.32%), which was obtained at a pressure of 353bar, temperature of 35°C, modifier (methanol) volume of 150μL, and static and dynamic extraction times of 10 and 60min, respectively. Ultrasound-assisted extraction (UAE) of Fatty acids from C. oblonga Miller was optimized, using a rotatable central composite design. The optimum conditions were as follows: solvent (n-hexane) volume, 22mL; extraction time, 30min; and extraction temperature, 55°C. This resulted in a maximum oil recovery of 19.5%. The extracts with higher yield from both methods were subjected to transesterification and GC-MS analysis. The results show that the oil obtained by SFE with the optimal operating conditions allowed a fatty acid composition similar to the oil obtained by UAE in optimum condition and no significant differences were found. The major components of oil extract were Linoleic, Palmitic, Oleic, Stearic and Eicosanoic acids. PMID:22824221

  10. Derin miller sınıf II dişeti çekilmelerin çift cerrahi yöntemle tedavisi: bir olgu sunumu

    Directory of Open Access Journals (Sweden)

    Hakan Ozdemir

    2011-10-01

    Full Text Available

    Tissue trauma caused by traumatic toothbrushing is considered to be a dominating causative factor for the development of recessions, particularly in young individuals. Recessions resulting from improver toothbrushing techniques are often found at sites with clinically healthy gingiva and where the exposed root has a wedgeshaped defect, the surface of which is clean, smooth and polished. Free connective tissue graft combined with a double papilla flap surgery and semi-lunar coronally repositioned flap methods leads to a significantly favorable clinical improvement of treatment of deep Class II Miller gingival recession defects

     

    ÖZET

    Özellikle genç kişilerde, dişeti çekilmelerinin en önemli nedeni travmatik fırçalama sonucu oluşan doku hasarıdır. Yanlış fırçalama teknikleri sonucu oluşan çekilmeler genellikle klinik olarak sağlıklı dişeti bölgelerinde görülür. Dişeti çekilmesi sonucunda açıkta kalan kök yüzeyi ise temiz, düz ve parlaktır. Ayrıca kök yüzeyinde kama şeklinde defektler de göze çarpar. Serbest bağ dokusu grefti ile çift papil flep ve semi-lunar koronale pozisyone flep tekniklerinin birlikte kullanımı derin Miller Sınıf II dişeti çekilmelerinde klinik olarak olumlu sonuçlar vermektedir.

  11. Prenatal and postnatal investigation of a case with Miller-Dieker syndrome due to a familial cryptic translocation t(17;20) (p13.3;q13.3) detected by fluorescence in situ hybridization

    NARCIS (Netherlands)

    vanZelderenBhola, SL; BreslauSiderius, EJ; Beverstock, GC; StolteDijkstra, [No Value; DeVries, LS; DePater, JM

    1997-01-01

    We present here a case report of a fetus with a kidney anomaly and dilated occipital horns, detected initially by echoscopy at 29 weeks' amenorrhoea. After 31 weeks of gestation, the proband was born with clinical symptoms of Miller-Dieker syndrome. This was subsequently confirmed by fluorescence in

  12. Investigação teórica do processo de redução de coliformes em leitos cultivados Theoretical investigation of coliform reduction in constructed wetland

    Directory of Open Access Journals (Sweden)

    Mariângela Amendola

    2007-12-01

    Full Text Available Este artigo mostra a continuidade da pesquisa sugerida por Amendola et al. (2003, para o caso em que se quer buscar maior precisão na investigação teórica do processo de redução de poluentes, em função do meio suporte usado em sistemas de leitos cultivados. Esta investigação se dá via modelagem matemática e simulação numérica do processo descrito por uma equação diferencial parcial de difusão-advecção, que envolve constantes que caracterizam o meio suporte (Moreno-Grau, 1996 e deve ser associada a condições iniciais e de contorno, estabelecidas de acordo com um procedimento experimental previamente realizado. Para resolução da equação implementa-se um algoritmo baseado no esquema implícito do método de diferenças finitas que, executado no MATLAB 6.1, gera valores da concentração dos poluentes que dependem dos valores das referidas constantes. Os resultados obtidos da simulação são comparados com valores de referência para a determinação do valor do coeficiente de dispersão longitudinal que, por sua vez, gera o menor resíduo para cada tipo de meio suporte do leito cultivado. Os resultados obtidos levam à conclusão de que o leito cultivado com brita e pneu picado é mais eficiente que aquele só com brita na remoção de coliformes fecais e totais.This paper shows the continuity of the research, as suggested by Amendola et al. (2003, when looking for better accuracy in the theoretical investigation of the pollutant reduction as a function of the support bed used in constructed wetland. This investigation is performed through the mathematical modeling and numerical simulation of the process, which is described by an advection-diffusion differential equation. This equation depends on certain constants which characterize the support bed (Moreno-Grau, 1996, and must be associated to the initial and boundary conditions established according to the experimental procedure. To solve the equation an algorithm based

  13. Distribution of cadmium in a cultivated soil in Britanny, France Distribuição de cádmio em solo cultivado na Bretanha, França

    Directory of Open Access Journals (Sweden)

    Gisele Mara Hadlich

    2010-12-01

    Full Text Available Cadmium (Cd can be potentially toxic to the environment, and its bioavailability is related to the chemical forms it occurs in the soils. The distribution of Cd into the solid phase and its availability was investigated in a cultivated soil in Britanny, France. Cd sequential extraction was performed using a modified Tessier's sequential extraction protocol. Total content of Cd (n = 22 samples ranged from 0.13 to 0.37 mg kg¹. Long term history of organic and mineral fertilizers application increased Cd concentration in the surface horizon. The fate of Cd was correlated with soil available P2O5 concentration and pH. The regression analysis (linear and non-linear and Principal Component Analysis revealed the synergistic effect of P2O5 in the retention of Cd in cultivated soils. The following fractions' sequence was observed: bounded to Fe and Al oxides + phosphates > exchangeable > bound to organic matter » residual fraction.O cádmio (Cd pode ser tóxico no ambiente e sua biodisponibilidade está relacionada às formas químicas em que os metais se encontram no solo. Apresenta-se a distribuição deste metal na fase sólida de um solo cultivado na Bretanha, França, assim como fatores que influenciam sua disponibilidade. Foi realizada a extração sequencial do Cd utilizando o método Tessier, modificado. A concentração total de Cd, avaliada em 22 amostras, variou de 0,13 a 0,37 mg kg¹. O uso contínuo de fertilizantes orgânicos e minerais aumentou a concentração de Cd no horizonte superficial do solo. A distribuição do Cd foi relacionada à concentração de P2O5 disponível e ao pH. Análises de regressão (linear e não linear e a Análise de Componentes Principais mostraram efeito sinérgico do P2O5 na retenção de Cd nos solos cultivados. O fracionamento apresentou a seguinte sequência: ligado a óxidos de Fe e de Al + fosfatos > trocável > ligado à matéria orgânica » residual.

  14. Influência do agrotêxtil sobre a densidade populacional de Monosporascus cannonballus em solo cultivado com melancia (Citrullus lanatus Influence of the row cover on the population density of Monosporascus cannonballus in soil cultivated with watermelon (Citrullus lanatus

    Directory of Open Access Journals (Sweden)

    Erika Valente de Medeiros

    2008-06-01

    Full Text Available O fungo Monosporascus cannonballus é um importante patógeno radicular que ocasiona a síndrome denominada colapso em cucurbitáceas. No presente trabalho, objetivou-se, avaliar os efeitos da cobertura de planta com agrotêxtil branco de 15 g m-2, sobre a densidade populacional de M. cannonballus, em solo cultivado com melancia [Citrullus lanatus (Thumb. Matsu & Nakai]. O delineamento experimental utilizado foi o de blocos casualizados em esquema de parcelas subdivididas, com três repetições. As parcelas foram constituídas por utilização ou não do agrotêxtil e as subparcelas pelas épocas de coleta de solo (0, 12, 24, 36, 48 dias após o transplantio. As variáveis analisadas foram densidade de ascósporos, temperatura do solo e do ar. Não houve influência da utilização da cobertura de agrotêxtil perante a densidade de ascósporos de M. cannonballus, no solo cultivado com melancia, mesmo que tenha proporcionado redução nas temperaturas médias do ar e do solo, sendo uma alternativa eficaz de manejo, na produção da melancia Mickylee.The fungus M. cannonballus is an important root pathogen that causes collapse in cucurbitaceas. The present work had as objective to evaluate the effect of the row cover with white polypropylene of 15 g m-2 on the population density of M.cannonballus in soil cultivated with watermelon [Citrullus lanatus (Thumb. Matsu & Nakai]. The experimental design was of randomized blocks using parcels subdivided scheme with three replications. The parcels consisted of use or not row cover and subparcelas through the time of soil collected (0, 12, 24, 36, 48 days after the transplanting. The variables evaluates were ascospores density, soil temperature and air temperature. There was not influence of the characteristics gotten for the row cover before the ascospores density of M. cannonballus, in the soils cultivated with watermelon and proportioning reduction of soil temperature means and air temperature means

  15. Bioprospecção de isolados de Bacillus promotores de crescimento de milho cultivado em solo autoclavado e natural Bioprospection of Bacillus isolates promoters of corn growth in natural and sterile soil

    Directory of Open Access Journals (Sweden)

    Fabio Fernando de Araujo

    2010-08-01

    Full Text Available Objetivou-se, neste trabalho, selecionar isolados bacterianos do gênero Bacillus em amostras de solo da região oeste paulista e avaliar o efeito de sua inoculação em milho cultivado em duas condições de solo (natural e autoclavado. Trinta e oito isolados bacterianos, caracterizados como Bacillus sp. foram avaliados previamente quanto ao antagonismo a fungos fitopatogênicos e produção de hormônio vegetal (auxinas em laboratório. Foram selecionados 14 isolados para inoculação de milho cultivado em vasos, em casa de vegetação durante 50 dias. As avaliações efetuadas durante a condução do experimento foram: altura de plantas; número de folhas desdobradas e biomassa seca produzida aos 50 dias após a semeadura. O cultivo do milho em solo autoclavado proporcionou maior número de folhas desdobradas e produção de biomassa na planta. Os isolados bacterianos BRG-2, CAS-2, NGR-1, PNP-2, PRP-2 e TAC-2, destacaram-se como promotores de crescimento do milho, avaliado pela produção de biomassa pela planta aos 50 dias de idade. Dos oito antagonistas avaliados apenas quatro foram promotores de crescimento do milho. A maior produção de AIA não foi uma característica principal dos melhores isolados bacterianos que promoveram o crescimento do milho.The objective of this work was to select bacterial isolates of the genus Bacillus in soil samples of West of the State of São Paulo and to assess the effect of their inoculation in corn growing in two soil conditions (natural and sterilized. 38 bacterial isolates characterized as belonging to the Bacillus genus were previously evaluated regarding their antagonism to phytopathogenic fungi and their production of plant hormones (auxines in the laboratory. The corn plants were inoculated with 14 Bacillus isolates and grown in in a greenhouse for 50 days. The evaluations made during the conduction of the trial were: plant height, number of leaves and biomass dry weight. The bacterial isolates

  16. Goat milk production and quality on Tanzania-grass pastures, with supplementation=Produção e qualidade do leite de cabras em pasto cultivado de capim-Tanzânia suplementadas com concentrado

    Directory of Open Access Journals (Sweden)

    Ana Clara Rodrigues Cavalcante

    2012-10-01

    Full Text Available It was evaluated the production and quality of milk produced by goats grazing Panicum maximum Jacq cv. Tanzania (Guineagrass and receiving four levels of concentrate supplementation. Eight Anglo Nubian goats, aged between two and four years, 43.6 kg in average body weight and between the 2nd and 4th lactation were distributed into two 4 x 4 balanced Latin square design. The supplementation levels were: 0.0, 0.5, 1.0 and 1.5% of body weight. The concentrate was composed of corn and soybean meal. The intake of dry matter and nutrients, and the daily production of milk, 4% fat-corrected milk, fat, protein, lactose and total solids had increased (p Avaliou-se a produção e qualidade do leite de cabras em pasto cultivado de Panicum maximum Jacq cv. Tanzânia sob níveis de suplementação com concentrado. Foram utilizadas oito cabras da raça Anglonubiana, com idade entre dois e quatro anos, peso médiode 43,6 kg, entre a 2ª e 4ª ordem de lactação, distribuídas em duplo quadrado latino balanceado 4 x 4. Os níveis de suplementação avaliados foram: 0,0; 0,5; 1,0 e 1,5% do peso vivo. O concentrado, foi composto por grão de milho e farelo de soja. O consumo de matéria seca e de nutrienteseas produçõesdiárias de leite, de leite corrigido a 4% de gordura, gordura, proteína, lactose e sólidos totais aumentaramcom a suplementação, enquanto que os teores de gordura e sólidos totais reduziram. A suplementação com concentrado em até 1,5% do peso vivo em pasto cultivado de capim-tanzânia promove aumento no consumo de matéria seca e de nutrientes da dieta, do que resulta o aumento linear na produção de leite e de seus constituintes.

  17. Absorção de fósforo por híbridos de milho cultivados em solo de cerrado Phosphorus absorption by of corn hybrids grown in savana soils

    Directory of Open Access Journals (Sweden)

    Cristiano Fernandes

    2002-12-01

    Full Text Available Nos últimos anos, a região do cerrado tem sido uma das principais áreas de expansão agrícola, porém seus solos apresentam grandes limitações à produção agrícola devido à sua elevada acidez e baixa fertilidade natural, principalmente quanto à disponibilidade de fósforo para as plantas. Este trabalho teve como objetivo comparar 30 híbridos de milho (Zea mays L., recomendados para a região do cerrado, quando a eficiência na absorção do P pouco disponível em solos pobres neste nutriente, através da técnica da Diluição Isotópica de 32P. Foi utilizado um Latossolo Vermelho-Amarelo distrófico sob duas condições de manejo, um cultivado a 20 anos e outro sob vegetação natural. Houve diferença na absorção de P entre os híbridos avaliados em ambos os solos, sendo que no solo natural o acúmulo de P e o desenvolvimento das plantas foi bastante reduzido devido à sua baixa fertilidade. Quanto à eficiência na utilização de P, houve diferença entre os híbridos, sendo que dos 30 híbridos avaliados, 7 foram classificados como eficientes, 16 como medianamente eficientes e 7 ineficientes, quando plantados no solo cultivado há 20 anos.In the past years the savana region has been one of the main agricultural expansion areas, however their soils present high limitation for plant growth due their high acidity, low natural fertility, and low phosphorus availability. The objective of this work was to compare 30 of the main recommended maize (Zea mays L. hybrids for the cerrado region in relation to their ability to absorb poorly-available soil phosphorus through the 32P isotopic dilution technique, using a Typic Dystrarox cultivated for 20 years and another under natural vegetation. Differences in absorption ability were observed among hybrids, seven classified as efficient, sixteen mildly efficient and seven inefficient, for the case of soil cultivated for 20 years. The plant growth and phosphorus concentration in the natural

  18. Wind farm development project at Mount Copper and Miller at Murdochville : public inquiry report; Projets d'amenagement des parcs d'eoliennes des monts Copper et Miller a Murdochville : rapport d'enquete et d'audience publique

    Energy Technology Data Exchange (ETDEWEB)

    Harvie, A.

    2004-03-01

    A public hearing was held at the request of the Quebec Minister of the Environment to examine the environmental and socio-economic impacts of a proposed wind farm project at Mount Copper and Mount Miller in Murdochville, Quebec. The first phase of the project involves the construction of a wind turbine array with a capacity of 9 megawatts (MW), followed by a second phase expansion to 45 MW for 2004. The final wind turbine array includes 36 turbines for a total capacity of 54 megawatts (MW). The region is well suited for wind energy projects. Energie Eolienne du Mont Miller Inc. and Northland Power Inc. intend to develop the wind farm at a cost of approximately $90 million. Hydro Quebec has agreed to purchase the electricity. The various impacts of the proposed project were examined, both from an environmental and a socio-economic perspective. The Commission determined that the wind farm would not have significant impacts and that the project is desirable. Certain conditions must be met to ensure sustainable development. In terms of ecology, the Commission would like to have a complete inventory of the bird species and a description of the corridors of migration. It would also like to see the promoters show leadership in minimizing the impacts of the project on the ecotourism activities offered in the area. 17 refs., 1 tab., 1 fig., 2 appendices.

  19. Desempenho agronômico e divergência genética entre genótipos de feijão-caupi cultivados no ecótono Cerrado/Pantanal

    Directory of Open Access Journals (Sweden)

    Jeferson Antônio da Silva Santos

    2014-12-01

    Full Text Available Objetivou-se com este trabalho avaliar o desempenho agronômico e a divergência genética entre genótipos de feijão-caupi cultivados na região do ecótono Cerrado/Pantanal. O experimento foi conduzido no ano de 2008 na área experimental da Universidade Estadual de Mato Grosso do Sul, Unidade Universitária de Aquidauana (UEMS/UUA. Os tratamentos consistiram de 20 genótipos de feijão-caupi dispostos em delineamento de blocos casualizados com quatro repetições. Avaliaram-se os seguintes caracteres: início do florescimento, início de maturação, massa de cinco vagens, massa de grãos de cinco vagens, índice de grãos, massa de 100 grãos e produtividade de grãos. A divergência genética entre os tratamentos foi determinada com base na análise de agrupamento e nas variáveis canônicas. O genótipo BRS 17-Gurgueia apresentou maior produtividade de grãos. Híbridos com maior efeito heterótico serão obtidos do cruzamento entre a linhagem Pingo-de-ouro-2 com as cultivares BRS 17-Gurgueia e BRS-Paraguassu.

  20. Caracterização morfotintorial de Colletotrichum spp. causador de antracnose em frutos de figo cultivados experimentalmente no perímetro irrigado de São Gonçalo, Sousa-PB

    Directory of Open Access Journals (Sweden)

    Damião Junior Gomes

    2015-07-01

    Full Text Available Como alternativa da inserção de novas culturas na região do Semiárido brasileiro temos o figo 'Roxo de Valinhos' (Ficus carica L. uma planta família Moraceae que pode muito bem ser inserida no contexto da agricultura familiar, mas que vem sofrendo infecção por um fungo do gênero Colletotrichum provocando importantes percas econômicas no agronegócio e também no campo da pesquisa e extensão. Este trabalho teve como objetivo caracterizar a morfologia de isolados de Colletotrichum spp. causador de antracnose pós-colheita em frutos de Ficus carica L. cultivado experimentalmente no perímetro irrigado da São Gonçalo no município de Sousa-PB. Primeiramente identificou os frutos com sintomas de antracnose seguido de sua desinfecção com álcool a 70%. Logo fez-se montagem em lâmina de microscopia para um prévia avaliação do patógeno. O fungo foi isolado em Batata-Dextrose-Ágar a 25ºC durante 10 dias. Seguidamente foi feito o microcultivo no mesmo meio de cultura para a análise morfo-tintorial do micélio usando como corante azul de algodão e lactofenol de amann.

  1. Screening of miners and millers at decreasing levels of asbestos exposure: comparison of chest radiography and thin-section computed tomography.

    Directory of Open Access Journals (Sweden)

    Mario Terra-Filho

    Full Text Available Chest radiography (CXR is inferior to Thin-section computed tomography in the detection of asbestos related interstitial and pleural abnormalities. It remains unclear, however, whether these limitations are large enough to impair CXR´s ability in detecting the expected reduction in the frequency of these asbestos-related abnormalities (ARA as exposure decreases.Clinical evaluation, CXR, Thin-section CT and spirometry were obtained in 1418 miners and millers who were exposed to progressively lower airborne concentrations of asbestos. They were separated into four groups according to the type, period and measurements of exposure and/or procedures for controlling exposure: Group I (1940-1966/tremolite and chrysotile, without measurements of exposure and procedures for controlling exposure; Group II (1967-1976/chrysotile only, without measurements of exposure and procedures for controlling exposure; Group III (1977-1980/chrysotile only, initiated measurements of exposure and procedures for controlling exposure and Group IV (after 1981/chrysotile only, implemented measurements of exposure and a comprehensive procedures for controlling exposure.In all groups, CXR suggested more frequently interstitial abnormalities and less frequently pleural plaques than observed on Thin-section CT (p<0.050. The odds for asbestosis in groups of decreasing exposure diminished to greater extent at Thin-section CT than on CXR. Lung function was reduced in subjects who had pleural plaques evident only on Thin-section CT (p<0.050. In a longitudinal evaluation of 301 subjects without interstitial and pleural abnormalities on CXR and Thin-section CT in a previous evaluation, only Thin-section CT indicated that these ARA reduced as exposure decreased.CXR compared to Thin-section CT was associated with false-positives for interstitial abnormalities and false-negatives for pleural plaques, regardless of the intensity of asbestos exposure. Also, CXR led to a substantial

  2. Molecular dissection of a contiguous gene syndrome: Frequent submicroscopic deletions, evolutionarily conserved sequences, and a hypomethylated island in the Miller-Dieker chromosome region

    International Nuclear Information System (INIS)

    The Miller-Dieker syndrome (MDS), composed of characteristic facial abnormalities and a severe neuronal migration disorder affecting the cerebral cortex, is caused by visible or submicroscopic deletions of chromosome band 17p13. Twelve anonymous DNA markers were tested against a panel of somatic cell hybrids containing 17p deletions from seven MDS patients. All patients, including three with normal karyotypes, are deleted for a variable set of 5-12 markers. Two highly polymorphic VNTR (variable number of tandem repeats) probes, YNZ22 and YNH37, are codeleted in all patients tested and make molecular diagnosis for this disorder feasible. By pulsed-field gel electrophoresis, YNZ22 and YNH37 were shown to be within 30 kilobases (kb) of each other. Cosmid clones containing both VNTR sequences were identified, and restriction mapping showed them to be 100 kb were completely deleted in all patients, providing a minimum estimate of the size of the MDS critical region. A hypomethylated island and evolutionarily conserved sequences were identified within this 100-kb region, indications of the presence of one or more expressed sequences potentially involved in the pathophysiology of this disorder. The conserved sequences were mapped to mouse chromosome 11 by using mouse-rat somatic cell hybrids, extending the remarkable homology between human chromosome 17 and mouse chromosome 11 by 30 centimorgans, into the 17p telomere region

  3. First molecular identification of Australapatemon burti (Miller, 1923) (Trematoda: Digenea: Strigeidae) from an intermediate host Radix labiata (Rossmaessler) (Gastropoda: Lymnaeidae) in Europe.

    Science.gov (United States)

    Aksenova, Olga V; Bespalaya, Yulia V; Bolotov, Ivan N; Kondakov, Alexander V; Sokolova, Svetlana E

    2016-01-01

    The strigeid digenean species Australapatemon burti (Miller, 1923) (Trematoda: Digenea: Strigeidae) was originally described from North America, but recorded in the Neotropical region (Drago et al. 2007; Hernández-Mena et al. 2014; Blasco-Costa et al. 2016) and in Central Europe (Faltýnková et al. 2007). In Europe, this species is rare, and there is not much information about its range (Faltýnková et al. 2007; Soldánová et al. 2012). Australapatemon burti has a complex life cycle with three larval stages, two of which (sporocyst and cercaria) use several species of freshwater snails, and the third stage (metacercaria) use non-specific host hirudineans (Dubois 1968; Davies & Ostrowski de Núñez 2012; Blasco-Costa et al. 2016). Adult flukes are parasitic in the intenstines of various waterfowl species, such as ducks and swans (Drago et al. 2007; Hernández-Mena et al. 2014). Currently, the molecular data on this parasite species includes only nucleotide sequences of four adult specimens from Mexico (Hernández-Mena et al. 2014). Their hosts were Mexican duck, Anas diazi Ridgway, American Wigeon, Anas americana Gmelin, Cinnamon Teal, Anas cyanoptera Vieillot, and Ruddy Duck, Oxyura jamaicensis (Gmelin) (Anserformes: Anatidae). PMID:27395696

  4. Bickerstaff’s brainstem encephalitis, Miller Fisher syndrome and Guillain-Barré syndrome overlap in an asthma patient with negative anti-ganglioside antibodies

    Directory of Open Access Journals (Sweden)

    Han Chongyu

    2012-06-01

    Full Text Available Abstract Background Bickerstaff’s brainstem encephalitis (BBE, together with Miller Fisher syndrome (MFS and Guillain-Barré syndrome (GBS were considered to form a continuous clinical spectrum. An anti-GQ1b antibody syndrome has been proposed to underlie the common pathophysiology for the three disorders; however, other studies have found a positive anti-GM1 instead of anti-GQ1b antibody. Case presentation Here we report a 20-year-old male patient with overlapping BBE, MFS and GBS. The patient had a positive family history of bronchial asthma and had suffered from the condition for over 15 years. He developed BBE symptoms nine days after an asthma exacerbation. During the course of illness, he had significantly elevated IgE levels in both serum and cerebrospinal fluid. Serologic analysis of antibodies against ganglioside complexes (anti-GDIa, anti-GDIb, anti-GM1, anti-GM2, anti-GM3, anti-GQIb and anti-GTIb antibodies showed negative results. Conclusions Since asthma has recently been related to autoimmune disease, our case supports an autoimmune mechanism underlying the clinical spectrum composed of BBE, MFS and GBS. However, contrary to a proposed anti-GQ1b antibody syndrome, we would suggest that pathogenesis of this clinical spectrum is not limited to anti-ganglioside antibodies.

  5. Quince (Cydonia oblonga Miller) peel polyphenols modulate LPS-induced inflammation in human THP-1-derived macrophages through NF-κB, p38MAPK and Akt inhibition.

    Science.gov (United States)

    Essafi-Benkhadir, Khadija; Refai, Amira; Riahi, Ichrak; Fattouch, Sami; Karoui, Habib; Essafi, Makram

    2012-02-01

    Chronic inflammation is a hallmark of several pathologies, such as rheumatoid arthritis, gastritis, inflammatory bowel disease, atherosclerosis and cancer. A wide range of anti-inflammatory chemicals have been used to treat such diseases while presenting high toxicity and numerous side effects. Here, we report the anti-inflammatory effect of a non-toxic, cost-effective natural agent, polyphenolic extract from the Tunisian quince Cydonia oblonga Miller. Lipopolysaccharide (LPS) treatment of human THP-1-derived macrophages induced the secretion of high levels of the pro-inflammatory cytokine TNF-α and the chemokine IL-8, which was inhibited by quince peel polyphenolic extract in a dose-dependent manner. Concomitantly, quince polyphenols enhanced the level of the anti-inflammatory cytokine IL-10 secreted by LPS-treated macrophages. We further demonstrated that the unexpected increase in IL-6 secretion that occurred when quince polyphenols were associated with LPS treatment was partially responsible for the polyphenols-mediated inhibition of TNF-α secretion. Biochemical analysis showed that quince polyphenols extract inhibited the LPS-mediated activation of three major cellular pro-inflammatory effectors, nuclear factor-kappa B (NF-κB), p38MAPK and Akt. Overall, our data indicate that quince peel polyphenolic extract induces a potent anti-inflammatory effect that may prove useful for the treatment of inflammatory diseases and that a quince-rich regimen may help to prevent and improve the treatment of such diseases. PMID:22252293

  6. Rezene (Foeniculum dulce Miller) uçucu yağının verimine ve bileşimine partikül boyutunun etkisi

    OpenAIRE

    BALKAN, Canan

    2015-01-01

    Bu çalışmada, tatlı rezene (Foeniculum dulce Miller) tohumları öğütülerek elde edilen 5 farklı boyuttaki partiküllerin, uçucu yağın verimine ve bileşimine etkisi araştırılmıştır. Materyal olarak, Burdur’un Gölhisar ilçesinde 2010 ve 2011 yıllarında yetiştirilip hasat edilen rezene tohumları kullanılmıştır. Tohumlar öğütüldükten sonra elek analizi yapılarak beş farklı partikül boyutunda (<300μm, 300-710μm, 710μm-1mm, 1-1,4mm, >1,4mm) sınıflandırılmıştır. Öğütülmüş rezene...

  7. Realization of the Atkinson-Miller cycle in spark-ignition engine by means of the fully variable inlet valve control system

    Directory of Open Access Journals (Sweden)

    Żmudka Zbigniew

    2014-09-01

    Full Text Available The theoretical analysis of the charge exchange process in a spark ignition engine has been presented. This process has significant impact on the effectiveness of engine operation because it is related to the necessity of overcoming the flow resistance, followed by the necessity of doing a work, so-called the charge exchange work. The flow resistance caused by the throttling valve is especially high during the part load operation. The open Atkinson-Miller cycle has been assumed as a model of processes taking place in the engine. Using fully variable inlet valve timing the A-M cycle can be realized according to two systems: system with late inlet valve closing and system with early inlet valve closing. The systems have been analysed individually and comparatively with the open Seiliger-Sabathe cycle which is a theoretical cycle for the classical throttle governing of the engine load. Benefits resulting from application of the systems with independent inlet valve control have been assessed on the basis of the selected parameters: fuel dose, cycle work, charge exchange work and a cycle efficiency. The use of the analysed systems to governing of the SI engine load will enable to eliminate a throttling valve from the system inlet and reduce the charge exchange work, especially within the range of part load operation.

  8. Realization of the Atkinson-Miller cycle in spark-ignition engine by means of the fully variable inlet valve control system

    Science.gov (United States)

    Żmudka, Zbigniew; Postrzednik, Stefan; Przybyła, Grzegorz

    2014-09-01

    The theoretical analysis of the charge exchange process in a spark ignition engine has been presented. This process has significant impact on the effectiveness of engine operation because it is related to the necessity of overcoming the flow resistance, followed by the necessity of doing a work, so-called the charge exchange work. The flow resistance caused by the throttling valve is especially high during the part load operation. The open Atkinson-Miller cycle has been assumed as a model of processes taking place in the engine. Using fully variable inlet valve timing the A-M cycle can be realized according to two systems: system with late inlet valve closing and system with early inlet valve closing. The systems have been analysed individually and comparatively with the open Seiliger-Sabathe cycle which is a theoretical cycle for the classical throttle governing of the engine load. Benefits resulting from application of the systems with independent inlet valve control have been assessed on the basis of the selected parameters: fuel dose, cycle work, charge exchange work and a cycle efficiency. The use of the analysed systems to governing of the SI engine load will enable to eliminate a throttling valve from the system inlet and reduce the charge exchange work, especially within the range of part load operation.

  9. Bioassay-Guided Chemical Study of the Anti-Inflammatory Effect of Senna villosa (Miller H.S. Irwin & Barneby (Leguminosae in TPA-Induced Ear Edema

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    Ana del Carmen Susunaga-Notario

    2014-07-01

    Full Text Available Senna villosa (Miller is a plant that grows in México. In traditional Mexican medicine, it is used topically to treat skin infections, pustules and eruptions and to heal wounds by scar formation. However, studies of its potential anti-inflammatory effects have not been performed. The aim of the present study was to determine the anti-inflammatory effect of extracts from the leaves of Senna villosa and to perform a bioassay-guided chemical study of the extract with major activity in a model of ear edema induced by 12-O-tetradecanoylphorbol 13-acetate (TPA. The results reveal that the chloroform extract from Senna villosa leaves has anti-inflammatory and anti-proliferative properties. Nine fractions were obtained from the bioassay-guided chemical study, including a white precipitate from fractions 2 and 3. Although none of the nine fractions presented anti-inflammatory activity, the white precipitate exhibited pharmacological activity. It was chemically characterized using mass spectrometry and infrared and nuclear magnetic resonance spectroscopy, resulting in a mixture of three aliphatic esters, which were identified as the principal constituents: hexyl tetradecanoate (C20H40O2, heptyl tetradecanoate (C21H42O2 and octyl tetradecanoate (C22H44O2. This research provides, for the first time, evidence of the anti-inflammatory and anti-proliferative properties of compounds isolated from Senna villosa.

  10. Phenolic compositions and antioxidant attributes of leaves and stems from three inbred varieties of Lycium chinense Miller harvested at various times.

    Science.gov (United States)

    Liu, Shih-Chuan; Lin, Jau-Tien; Hu, Chao-Chin; Shen, Bo-Yan; Chen, Ting-Yo; Chang, Ya-Ling; Shih, Chia-Huing; Yang, Deng-Jye

    2017-01-15

    Antioxidant components and properties (assayed by scavenging DPPH radicals, TEAC, reducing power, and inhibiting Cu(2+)-induced human LDL oxidation) of leaves and stems from three inbred varieties of Lycium chinense Miller, namely ML01, ML02 and ML02-TY, harvested from January to April were studied. Their flavonoid and phenolic acid compositions were also analyzed by HPLC. For each variety, the leaves and stems collected in higher temperature month had higher contents of total phenol, total flavonoid and condensed tannin. Contents of these components in the samples collected in different months were in the order: April (22.3°C)>March (18.0°C)>January (15.6°C)>February (15.4°C). Antioxidant activities of the leaves and stems for all assays also showed similar trends. The samples from different varieties collected in the same month also possessed different phenolic compositions and contents and antioxidant activities. Their antioxidant activities were significantly correlated with flavonoid and phenolic contents. PMID:27542477

  11. Prebiotic Synthesis of Methionine and Other Sulfur-Containing Organic Compounds on the Primitive Earth: A Contemporary Reassessment Based on an Unpublished 1958 Stanley Miller Experiment

    Science.gov (United States)

    Parker, Eric T.; Cleaves, H. James; Callahan, Michael P.; Dworkin, Jason P.; Glavin, Daniel P.; Lazcano, Antonio

    2010-01-01

    Original extracts from an unpublished 1958 experiment conducted by the late Stanley L. Miller were recently found and analyzed using modern state-of-the-art analytical methods. The extracts were produced by the action of an electric discharge on a mixture of methane (CH4), hydrogen sulfide (H2S), ammonia (NH3), and carbon dioxide (CO2). Racemic methionine was farmed in significant yields, together with other sulfur-bearing organic compounds. The formation of methionine and other compounds from a model prebiotic atmosphere that contained H2S suggests that this type of synthesis is robust under reducing conditions, which may have existed either in the global primitive atmosphere or in localized volcanic environments on the early Earth. The presence of a wide array of sulfur-containing organic compounds produced by the decomposition of methionine and cysteine indicates that in addition to abiotic synthetic processes, degradation of organic compounds on the primordial Earth could have been important in diversifying the inventory of molecules of biochemical significance not readily formed from other abiotic reactions, or derived from extraterrestrial delivery.

  12. In-cylinder Gas Flow and Combustion Analysis of Miller Cycle Engine%米勒循环发动机缸内气体流动与燃烧分析

    Institute of Scientific and Technical Information of China (English)

    李军; 向璐; 郑建军

    2016-01-01

    A Miller cycle engine with high compression ratio was developed through the longitudinal development of a 1 .6 L engine .Then the numerical simulation of Miller cycle engine with high compression ratio and intake late closing strategy was conducted with CFD STAR‐CD software and the in‐cylinder gas flow mode and combustion process for Miller cycle engines with two kinds of geometry shape piston were compared .The results show that the optimized piston scheme has better in‐cylinder gas flow mode and combustion characteristics .The results provide the reference for the piston shape selection and the optimiza‐tion of combustion chamber in actual development of Miller cycle engine with high compression ratio .%在某1.6L发动机的基础上进行纵向开发,以此来实现高压缩比米勒循环发动机。利用大型三维计算流体动力学(CFD)软件STAR‐CD对采用进气门晚关策略的高压缩比米勒循环发动机进行数值模拟,对比分析了采用两种几何形状活塞的米勒循环发动机的缸内气体流动模式及燃烧过程。计算结果表明:经过结构优化的活塞方案相对于原方案可以获得较优的缸内流动及燃烧特性。计算结果将为实际开发中的高压缩比米勒循环发动机的活塞选型及燃烧室优化提供理论及数据支撑。

  13. CONSERVACIÓN DE FRESA (Fragaria x ananassa Duch cv. Camarosa MEDIANTE LA APLICACIÓN DE RECUBRIMIENTOS COMESTIBLES DE GEL MUCILAGINOSO DE PENCA SÁBILA (Aloe barbadensis Miller Y CERA DE CARNAÚBA CONSERVATION OF STRAWBERRY (Fragaria x ananassa Duch cv. Camarosa BY EDIBLE COATING APPLICATION OF SABILA GEL MUCILAGE (Aloe barbadensis Miller AND CARNAUBA WAX

    Directory of Open Access Journals (Sweden)

    Jorge I RESTREPO F

    2010-09-01

    Full Text Available La fresa es un fruto de elevada aceptación entre los consumidores, y como cultivo ofrece una permanencia significativa durante todos los meses del año, con buen posicionamiento en sus precios. El objetivo de este estudio fue aumentar la vida útil de la fresa (Fragaria x ananassa Duch cv. Camarosa, mediante la aplicación de dos recubrimientos comestibles desarrollados a partir del gel mucilaginoso de penca sábila (Aloe barbadensis Miller y cera de carnaúba. A partir de los resultados obtenidos se concluyó que el recubrimiento comestible de gel mucilaginoso de penca sábila condujo a un aumento en la vida útil de las fresas de por lo menos 10 días, con disminución de la pérdida de humedad, del índice de respiración, y conservación de la firmeza, sin ocasionar cambios perceptibles en el color, en comparación con los frutos utilizados como tratamiento control.The strawberry is a well accepted fruit by consumers. Its culture presents a significant yield in all months of the year and enjoys a good price positioning. The objective of this study was to extend the strawberry (Fragaria x ananassa Duch cv. Camarosa shelf life by applying two edible coatings developed from the Aloe vera (Aloe barbadensis Miller mucilaginous gel and carnauba wax. From the results obtained it was concluded that the use of edible coatings from Aloe vera mucilaginous gel and carnauba wax led to an increase of at least ten days in the strawberry shelf life, with reduced moisture loss and respiration rate. Besides, conservation of firmness without showing noticeable changes in color was observed, in comparison to the fruits used as a control.

  14. Temperature profile and other data from surface sensors and CTD casts from the NOAA Ship MILLER FREEMAN and other platforms as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) and the Fisheries-Oceanography Cooperative Investigations (FOCI) from 31 January 1988 to 23 September 1989 (NODC Accession 9000273)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature profile and other data were collected from surface sensors and CTD casts from the NOAA Ship MILLER FREEMAN and other platforms from 31 January 1988 to...

  15. Physical, meteorological, and other data from surface sensors, bottle casts, and CTD casts in the Gulf of Alaska from the MILLER FREEMAN as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 29 March 1977 to 02 April 1977 (NODC Accession 7700681)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Physical, meteorological, and other data were collected from surface sensors, bottle casts, and CTD casts in the Gulf of Alaska from the MILLER FREEMAN. Data were...

  16. Physical, meteorological, and other data from surface sensors, bottle casts, and CTD casts in the Gulf of Alaska and other locations from the MILLER FREEMAN and other platforms as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 08 September 1976 to 19 November 1976 (NODC Accession 7700461)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Physical, meteorological, and other data were collected from surface sensors, bottle casts, and CTD casts in the Gulf of Alaska and other locations from the MILLER...

  17. Fish survey, fishing duration, and other data from net trawls in the Bering Sea from the MILLER FREEMAN and other platforms as part of Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 01 April 1976 to 09 August 1976 (NODC Accession 7700847)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish survey, fishing duration, and other data were collected from net trawls in the Bering Sea from the MILLER FREEMAN and other platforms from 01 April 1976 to 09...

  18. Temperature and salinity profiles from expendable bathythermograph (XBT) and CTD casts from the NOAA Ship MILLER FREEMAN and other Platforms from Coastal Waters of Washington/Oregon and other locations in support of the Integrated Global Ocean Services System (IGOSS) from 12 July 1977 to 26 July 1983 (NODC Accession 8300102)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — XBT and CTD data were collected from the NOAA Ship MILLER FREEMAN and other Platforms in support of the Integrated Global Ocean Services System (IGOSS) project....

  19. ANIMALS - INDIVIDUAL - COUNTS, HABITAT, Displacement Volume, TAXONOMIC CODE and other tows and trawl data collected in the Gulf of Alaska and North Pacific Ocean on the CHARTER/FISHING BOATS and MILLER FREEMAN cruises GP0108, GP0207-01 and others as part of the NEP project from 2001-07-17 to 2003-08-08 (NODC Accession 0115265)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0115265 includes tows, biological and trawl data collected aboard the CHARTER/FISHING BOATS and MILLER FREEMAN during cruises GP0108, GP0207-01,...

  20. HABITAT, WATER TEMPERATURE, cloud amount/frequency and WIND SPEED tows and trawl data collected in the Gulf of Alaska and North Pacific Ocean on the CHARTER/FISHING BOATS and MILLER FREEMAN cruises GP0108, GP0207-01 and others as part of the NEP project from 2001-07-17 to 2004-11-08 (NODC Accession 0115264)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0115264 includes meteorological, tows, biological, physical and trawl data collected aboard the CHARTER/FISHING BOATS and MILLER FREEMAN during...

  1. Temperature profiles from expendable bathythermograph (XBT) casts from the NOAA Ship MILLER FREEMAN in the Bering Sea and Gulf of Alaska in support of the Integrated Global Ocean Services System (IGOSS) project from 10 February 1985 to 17 February 1985 (NODC Accession 8500039)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — XBT data were collected from the NOAA Ship MILLER FREEMAN in support of the Integrated Global Ocean Services System (IGOSS) project. Data were collected by the...

  2. Temperature and salinity profiles from CTD casts from the NOAA Ship MILLER FREEMAN and other PLATFORMS from a World-Wide Distribution in support of the Integrated Global Ocean Services System (IGOSS) from 01 July 1991 to 31 July 1991 (NODC Accession 9100146)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CTD and other data were collected from the NOAA Ship MILLER FREEMAN and other PLATFORMS in support of the Integrated Global Ocean Services System (IGOSS). Data were...

  3. Fish survey, fishing duration, and other data from net trawls in the Bering Sea from the MILLER FREEMAN and other platforms as part of Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 07 August 1975 to 21 October 1975 (NODC Accession 7601681)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish survey, fishing duration, and other data were collected from net trawls in the Bering Sea from the MILLER FREEMAN and other platforms from 07 August 1975 to 21...

  4. Fish survey, fishing duration and other data from otter trawls and scuba observations from the NOAA Ship MILLER FREEMAN and other platforms as part of Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 04 November 1977 to 26 November 1979 (NODC Accession 8100532)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Fish survey, fishing duration, and other data were collected from otter trawls and scuba diver observations from the NOAA Ship MILLER FREEMAN and other platforms...

  5. CHLOROPHYLL A, SALINITY, WATER TEMPERATURE, FLUORESCENCE and SIGMA-T profile data collected in the Gulf of Alaska and North Pacific Ocean on the CHARTER/FISHING BOATS and MILLER FREEMAN cruises GP0108, GP0207-01 and others as part of the NEP project from 2001-07-17 to 2004-11-08 (NODC Accession 0113921)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0113921 includes profile, biological and physical data collected aboard the CHARTER/FISHING BOATS and MILLER FREEMAN during cruises GP0108,...

  6. Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and Calcium collected from discrete sample and profile observations using CTD, bottle and other instruments from the MILLER FREEMAN in the North Pacific Ocean and South Pacific Ocean from 1979-04-01 to 1982-06-30 (NODC Accession 0000180)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0000180 includes chemical, discrete sample, physical and profile data collected from MILLER FREEMAN in the North Pacific Ocean and South Pacific...

  7. Avaliação nutricional do cogumelo shiitake [Lentinula edodes (Berk.) Pegler] em função da linhagem e do tipo de eucalipto cultivado Nutritional evaluation of shiitake mushroom [(Lentinula edodes (Berk.) Pegler] in function of the strain and type of cultivated eucalyptus

    OpenAIRE

    Meire Cristina Nogueira de Andrade; Marli Teixeira de Almeida Minhoni; Diego Cunha Zied

    2008-01-01

    O valor nutricional do Lentinula edodes (Berk.) Pegler varia em função da linhagem cultivada, do processamento após colheita, do estágio de desenvolvimento do basidioma e do tipo de substrato utilizado. Este trabalho teve como objetivo avaliar nutricionalmente basidiomas de L. edodes em função da linhagem e do tipo de eucalipto cultivado. O delineamento experimental foi inteiramente casualizado, em esquema fatorial 2 x 10 (linhagens de L. edodes x tipo de eucalipto), totalizando 20 tratamento...

  8. Francisella philomiragia, bacteria asociada con altas mortalidades en salmones del Atlántico (Salmo salar) cultivados en balsas-jaulas en el lago Llanquihue Francisella philomiragia, a bacteria associated with high mortalities in Atlantic salmon (Salmo salar) cage-farmed in Llanquihue lake

    OpenAIRE

    H Bohle; Tapia, E.; A Martínez; M Rozas; Figueroa, A.; Bustos, P.

    2009-01-01

    Francisella philomiragia fue aislada de salmón del Atlántico cultivado en balsas-jaulas en el lago Llanquihue con brotes de una enfermedad granulomatosa con altas tasas de morbilidad y mortalidad acumuladas entre 5% a 20%. Los aislados bacterianos tienen 100% similitud con F. philomiragia ssp noatunensis o F. piscicida aislado de bacalao en Noruega, 99% de similitud con Francisella sp. detectado en tilapia en Asia y Centroamérica y 99% de similitud con la especie tipo F. philomiragia por anál...

  9. Lixiviação e volatilização de nitrogênio em um Argissolo cultivado com videira submetida à adubação nitrogenada Lixiviation and volatilization of nitrogen in Sandy Typic Hapludalf soil cultivated with grapevine submitted to the nitrogen fertilization

    OpenAIRE

    Felipe Lorensini; Carlos Alberto Ceretta; Eduardo Girotto; Jackson Berticelli Cerini; Cledimar Rogério Lourenzi; Lessandro De Conti; Mateus Moreira Trindade; George Wellington Melo; Gustavo Brunetto

    2012-01-01

    O nitrogênio (N) aplicado na superfície do solo em vinhedos pode ser perdido por volatilização ou lixiviação, sendo uma das possíveis explicações para o baixo aproveitamento de N pelas videiras. O trabalho objetivou avaliar as perdas de N por volatilização e lixiviação do N mineral em solo cultivado com videira submetida à adubação nitrogenada. Foram instalados dois experimentos em um vinhedo de Cabernet Sauvignon, em Rosário do Sul (RS), Brasil. No experimento 1, foram instalados lisímetros ...

  10. Descripción morfoagronómica de materiales de plátano (Musa AAB, ABB) y banano (Musa AAA) cultivados en San Andrés Isla Morpho-agronomic Description of Plantain (Musa AAB, ABB) and Banana (Musa AAA) Materials Grown in San Andres Island

    OpenAIRE

    Oscar Javier Parra Pachón; Daniel Gerardo Cayón Salinas; Jaime Polanía Vorenber

    2009-01-01

    Durante el primer semestre de 2005 se estudiaron los cultivares de plátano y banano en fincas y parcelas de 15 agricultores típicos participantes en programas conjuntos de la Secretaría de Agricultura y Pesca de San Andrés Isla y de la Universidad Nacional de Colombia sede Caribe. A partir de descriptores de INIBAP, IPGRI y CIRAD y revisiones bibliográficas.se describen morfológicamente los materiales de Musa cultivados en la Isla, así como las prácticas de los productores isleños, Se identif...

  11. Transpiração do tomateiro cultivado fora do solo em estufa plástica e sua relação com os elementos meteorológicos Transpiration of tomato plants grown outside soil in plastic greenhouse and its relationship with meteorological elements

    OpenAIRE

    Josemar Valandro; Galileo Adeli Buriol; Jerônimo Luiz Andriolo; Arno Bernardo Heldwein

    2007-01-01

    Neste trabalho, foram determinadas as relações da transpiração das plantas do tomateiro (Lycopersicon esculentum M.) cultivado em estufa plástica com os elementos meteorológicos. Realizaram-se três experimentos, no Campo Experimental do Departamento de Fitotecnia da Universidade Federal de Santa Maria - UFSM (RS): no outono-inverno de 1997 e nas primaveras de 1997 e de 1998. Cada planta foi cultivada num volume de aproximadamente oito litros de substrato colocado em sacola plástica. Para a de...

  12. Produtividade e qualidade de abacaxizeiro cv. Smooth Cayenne, cultivado comaplicação de doses e parcelamentos do nitrogênio, em Guaraçaí-SP Productivity and quality of pineapple cv. Smooth Cayenne, cultivated with nitrogen doses and splitting application in Guaraçaí-SP

    OpenAIRE

    Leandro Spegiorin Marques; Marcelo Andreotti; Salatiér Buzetti; Jacira dos Santos Isepon

    2011-01-01

    A adubação é um dos fatores que influem na produção e qualidade dos frutos; portanto, a necessidade de se estudar o efeito do nitrogênio aplicado antes e após a indução floral nestas características dos frutos de abacaxi é fundamental. Os objetivos deste trabalho foram avaliar a produtividade, o estado nutricional e os aspectos quantitativos e qualitativos dos frutos de abacaxizeiro 'Smooth Cayenne' submetidos a doses e parcelamentos do nitrogênio, cultivado em Guaraçaí-SP. O delineamento exp...

  13. Maize grown in succession to green manure under agro-ecology based systems=Milho cultivado em sucessão a adubos verdes em sistemas sob bases agroecológicas

    Directory of Open Access Journals (Sweden)

    Leandro Flávio Carneiro

    2016-02-01

    o desempenho do milho cultivado em sucessão a adubos verdes em sistemas de base agroecológica. O estudo foi desenvolvido no ano agrícola 2009/2010, em duas ecorregiões distintas (Dourados e Itaquiraí, e composto por dez tratamentos, sendo o cultivo de: Crotalaria juncea, Cajanus cajan, Canavalia ensiformis, Mucuna pruriens, Stizolobium aterrimum, Pennisetum glaucum, Sorghum bicolor; consórcio de C. juncea e P. glaucum, mistura dos adubos verdes, além da testemunha (plantas espontâneas. Após o manejo, avaliou-se a massa seca e a quantidade de nutrientes acumulados na parte aérea das plantas. Dez dias após o manejo dos adubos verdes, semeou-se o milho. Avaliou-se a altura de plantas e de inserção de espiga, a massa de espigas sem palha (milho verde, a massa seca dos restos culturais e o rendimento de grãos secos. Os resultados evidenciaram que o milho cultivado em sucessão a leguminosas, resulta em maior produção de massa de espigas e rendimento de grãos, destacando-se a M. pruriens, S. aterrimum, C. cajan, C. ensifor.

  14. Yield and quality criteria in organically and conventionally grown tomatoes in Turkey Produção e qualidade de tomates cultivados sob sistemas orgânico e convencional na Turquia

    Directory of Open Access Journals (Sweden)

    Ersin Polat

    2010-08-01

    Full Text Available The term 'organically grown food' denotes products that have been produced in accordance with the principles and practices of organic agriculture. The use of alternatives to synthetic fertilizers is an important issue in organic systems. A two-year field experiment to evaluate effects of organic fertilizers on the yield and quality of open field grown tomatoes (Lycopersicon esculentum Mill. was carried out in Southern Turkey in 2000 and 2001. Combinations of manure, blood flour and micronutrient preparations were used for fertilization, and conventional mineral fertilization was included as the control. Yield did not differ between the fertilization and the Conventional treatments in the first year of the study, but the highest yield was obtained from conventional in the second year. No differences were found between treatments in terms of fruit soluble sugar content or citric acid. The application of organic fertilizers positively affected the micronutritional element content of tomato fruits compared to the conventional treatment. Organic fertilization results in improved yield and fruit quality compared to conventional fertilization. In addition, organic fertilization should be supported in order to facilitate reuse and disposal of organic wastes and to maintain and/or increase soil fertility.O termo "alimentos cultivados organicamente" denota produtos que tenham sido produzidos em conformidade com os princípios e práticas da agricultura orgânica. O uso de alternativas para fertilizantes sintéticos é uma questão importante em sistemas orgânicos. Um experimento de campo foi conduzido no sul da Turquia em 2000 e 2001 para avaliar os efeitos da adubação orgânica na produtividade e na qualidade de tomates (Lycopersicon esculentum Mill, cultivados em campo aberto. Combinações de esterco, farinha de sangue e preparações de micronutrientes foram utilizados para a fertilização, e adubações minerais convencionais foram inclu

  15. Manejo de plantas daninhas em maracujazeiro amarelo cultivado com adubação química e orgânica Weed management in yellow passion fruit cultivated with chemical and organic fertilization

    Directory of Open Access Journals (Sweden)

    J. Ogliari

    2007-12-01

    Full Text Available Objetivou-se, neste trabalho, avaliar diferentes formas de manejo de plantas daninhas na cultura do maracujazeiro, cultivado com adubação química e orgânica. O delineamento experimental foi em blocos casualizados, com 15 tratamentos, arranjados em esquema de parcelas subdivididas, com quatro repetições e 10 plantas úteis por parcela. Os tratamentos foram constituídos por três tipos de adubações na parcela (orgânica, química e química + orgânica e cinco manejos de plantas daninhas na subparcela (com capina, sem capina, diuron (pré + glyphosate (pós, diuron (pré + MSMA (pós e diuron (pré + (diuron + paraquat (pós. O diuron foi aplicado aos cinco dias antes do plantio das mudas, em todos os tratamentos com herbicida, variando apenas os herbicidas em pós-emergência; para cada um dos herbicidas das misturas avaliadas, foram feitas três aplicações, aos 45, 96 e 159 dias. O diuron em pré-emergência provocou sintomas de clorose nas folhas entre 20 e 26 dias após o plantio (DAP, sendo mais evidente no maracujazeiro cultivado com adubação química. Os tratamentos com diuron (pré e glyphosate (pós apresentaram melhor controle das plantas daninhas. Os tratamentos com adubação química + orgânica associados aos manejos com capina, diuron (pré + glyphosate (pós e diuron (pré + (diuron + paraquat (pós foram os que proporcionaram maior produtividade de frutos. No cultivo com adubação orgânica, o tratamento capinado foi o que proporcionou maior produtividade. No cultivo com adubação química, a produtividade foi maior no tratamento com diuron (pré + glyphosate (pós.The objective of this work was to evaluate different types of weed management in passion fruit culture under chemical and organic fertilization. The experimental design was in randomized blocks with 15 treatments, arranged in a splip-splot design, with four repetitions containing 10 plants each. The treatments consisted of three types of fertilization

  16. Disponibilidade de fósforo em solos cultivados com arroz irrigado por alagamento no Rio Grande do Sul Phosphorus availability in soils with flooded rice in Rio Grande do Sul, Brazil

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    Gustavo Krüger Gonçalves

    2008-12-01

    Full Text Available Nos solos cultivados com arroz irrigado por alagamento no Estado do Rio Grande do Sul, a maior fração do P inorgânico está ligada a óxidos de Fe. Espera-se que um extrator que tenha a capacidade de extrair o P adsorvido a estes óxidos possa ser mais eficiente para avaliar a disponibilidade de P para as plantas de arroz. Considerando o exposto, realizou-se um experimento, em casa de vegetação, com amostras de cinco solos do Rio Grande do Sul com o objetivo de avaliar a disponibilidade de P no solo para o arroz. Foram testados os seguintes métodos: Mehlich-1, Mehlich-3, resina de troca aniônica em lâminas, Olsen e P-oxalato a pH 6. Os solos foram previamente incubados com três doses de P na forma de superfosfato triplo e, posteriormente, cultivados com arroz, em condições reduzidas, durante 38 dias. Os coeficientes de determinação obtidos entre o P acumulado pelas plantas de arroz e o P extraído dos solos foram: 0,83* para o Mehlich-1, 0,81* para o Mehlich-3, 0,88* para a resina de troca, 0,85* para o Olsen e 0,59* para o P-oxalato. A separação dos solos em dois grupos segundo o material de origem e os teores de óxidos de Fe de baixa cristalinidade, extraídos com oxalato a pH 6, resultou em melhor eficiência dos métodos testados para avaliar a disponibilidade do P para o arroz.In the paddy rice soils in the of Rio Grande do Sul State, Brazil, most inorganic P is bound to Fe oxides. It is expected that an extractant that has the capacity to extract P adsorbed to these oxides would be more efficient to evaluate the availabil-ity to rice plants. A study was carried out in a greenhouse, with five soils samples from the State of Rio Grande do Sul, to evaluate P availability to rice, extracted by the following methods: Mehlich-1, Mehlich-3, anion exchange resin, Olsen and P-oxalate. The soils were first incubated with three doses of triple superphosphate and then planted with rice, in under anaerobic conditions, during 38 days

  17. Biological Activity in a Degraded Alfisol Amended with Sewage Sludge and Cropped with Yellow Serradela (Ornithopus compressus L. Actividad Biológica en un Alfisol Degradado Enmendado con Lodos Urbanos y Cultivado con Serradela Amarilla (Ornithopus compressus L.

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    José Celis H

    2011-03-01

    Full Text Available There are few studies about the impact of sewage sludge on the biological properties in Alfisols of the Chilean Coastal Range drylands. Hence, the objective of this study was to evaluate its effect on the microbial respiration and enzymatic activities of a degraded Alfisol located in the Bío Bío Region (Chile that was cropped with yellow serradela (Ornithopus compressus L.. Sludge was added to the soil at rates of 15, 30, and 60 t ha-1; he following treatments were defined: L15-P = 15 t ha-1 sludge + O. compressus; L30-P = 30 t ha-1 sludge + O. compressus; L60-P = 60 t ha-1 sludge + O. compressus; L15 = 15 t ha-1 sludge; L30 = 30 t ha-1 sludge; L60 = 60 t ha-1 sludge; CP = non-amended soil, cropped; and C = non-amended soil, no crop. Soil microorganism activity was evaluated by respirometry. Hydrolytic enzyme activity representative of soil C, N, and P cycles was determined. Crop phytomass development was also evaluated. The amount of C-CO2 produced by soil microorganisms was directly proportional to the dose of amended sludge (p ≤ 0.05. Similarly, greater β-glucosidase, urease, and acid phosphatase were more active at 60 t sludge ha-1. However, both respiratory and enzymatic activities were greater (p ≤ 0.05 in treatments with sludge-amended soil cropped with O. compressus. This greater activity was notorious when the legumes achieved greater phytomass development, thus highlighting the root’s stimulating effect on soil biological activity.El impacto de los lodos urbanos sobre las propiedades biológicas en suelos Alfisoles del secano interior de la Cordillera de la Costa de Chile ha sido poco estudiado. El objetivo de este estudio fue evaluar el efecto de la aplicación de lodo urbano sobre las propiedades biológicas de un suelo Alfisol degradado de la Región del Bío Bío, Chile, cultivado con serradela amarilla (Ornithopus compressus L.. Se adicionó lodo al suelo a razón de 15, 30 y 60 t ha-1, a partir de lo cual se definieron

  18. Rendimentos do processamento e composição química de filés de surubim cultivado em tanques-rede Processing yield and chemical composition of fillets of surubim reared in net cages

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    Denilson Burkert

    2008-07-01

    Full Text Available Neste trabalho foi avaliado o efeito da utilização de três rações comerciais indicadas para alimentação de peixes carnívoros sobre os rendimentos do processamento e a composição de filés de surubim (Pseudoplatystoma sp cultivados em tanques-rede. Os surubins foram cultivados em tanques-rede durante um ano, período em que foram alimentados com três rações contendo 43,5; 42,6 e 42,1% de proteína bruta; 6,3; 8,7 e 4,5% de extrato etéreo e 5.078; 4.931 e 4.994 kcal de energia bruta, respectivamente, em um delineamento inteiramente casualizado, com três tratamentos e três repetições. Em cada tanque, foram selecionados cinco peixes com pesos entre 1.280 e 1.340 g, que foram insensibilizados e sacrificados para determinação dos rendimentos de carcaça com e sem pele, cabeça, filé total, lateral e abdominal, fígado, pele e esqueleto. Amostras de filés laterais e abdominais foram tomadas para análises bromatológicas. Foram avaliados 22 fêmeas e 23 machos, no entanto, não foi observada diferença entre os sexos quanto aos principais rendimentos de processamento. Os rendimentos de filé abdominal e de resíduos com e sem pele diferiram entre as rações. A composição bromatológica dos filés (lateral e abdominal não foi influenciada pelas rações e não diferiu entre os cortes. A utilização de rações comerciais no cultivo não acarretou mudanças na quantidade e na qualidade dos principais cortes do surubim.The objective of this work was to evaluate the effect of three commercial feeds recommended for carnivorous fish on processing yield and fillet composition of surubim (Pseudoplatystoma sp raised in net cages. The surubim fishes were raised in net cages during one year, when were fed three diets with 43.5, 42.6, and 42.1% crude protein; 6.3, 8.7, and 4.5% ether extract and 5,078, 4,931, and 4,994 kcal of gross energy, respectively. Fishes were allotted to a completely randomized design, with three treatments and

  19. Tratamento de efluentes de sala de ordena de bovinocultura: lagoas de estabilização seguidas de leito cultivado Tretment of milking parlor effluent: stablization pounds followed by constructed wetland

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    Edu M. da Silva

    2010-02-01

    Full Text Available No Brasil, o destino dos efluentes dos confinamentos de animais foi e continua sendo os cursos de água, usando o ultrapassado método da diluição para eliminar os resíduos das instalações, o que pode resultar na eutrofização de rios, riachos, lagos e lagoas. As lavagens diárias da sala de ordenha, da Unidade Educativa de Produção (UEP de Bovinocultura de Leite da Escola Agrotécnica Federal de Inconfidentes -MG (EAFI/MG, gerou 4,7 vezes mais efluentes poluentes do que a produção de leite, entre os meses de junho de 2006 e maio de 2007. Uma unidade-piloto composta por lagoa anaeróbia, lagoa facultativa e leito cultivado (“constructed wetland” foi projetada para testar a eficiência no tratamento do resíduo líquido gerado pela sala de ordenha. Após o tratamento do efluente bruto no sistema proposto, ficou constatado que a retenção média de fósforo foi de 83%; a redução de nitrato de 88%; a Demanda Química de Oxigênio (DQO ficou reduzida, em média, 89%; os sólidos totais em 67% e a redução da turbidez, analisada somente no leito cultivado ficou, em média, em 60%. O pH médio das amostras foi de 6,2. Em se tratando de efluentes oriundos de confinamento de animais, pode-se afirmar que o resultado foi positivo, demonstrando que essa opção de sistema de tratamento tem grande potencial de aplicação.One of the major concerns in dairy cattle lodging management is the great amount of manure produced daily in a reduced area that can be an excellent fertilizer option or an enormous pollutant potential, depending on the disposal procedures. In Brazil, the destination of raw effluent of lodged dairy cattle was in the past and continues nowadays being the water courses using the conventional and condemned method of the dilution, as the only form to eliminate the residues of the installations which is one of the reasons for eutrophication of rivers, streams, lakes and ponds. A pilot plant was installed to treat 10% of the

  20. Moléstias em tomateiro cultivado em estufas plásticas em quatro municípios da região central do Rio Grande do Sul, Brasil

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    Blume Elena

    2004-01-01

    Full Text Available Moléstias podem atacar severamente hortaliças cultivadas em cultivos protegidos e, para o manejo integrado dessas moléstias, o conhecimento das condições climáticas que favorecem sua incidência nesses cultivos é fundamental. O trabalho teve o objetivo de identificar as moléstias em tomateiro cultivado em estufas plásticas em quatro municípios na região central do Rio Grande do Sul e as condições de temperatura e umidade relativa (UR do ar nas quais elas ocorrem. O estudo foi realizado nos municípios de São Pedro do Sul, São Sepé, Ivorá e Santa Maria (RS, no período de março a outubro de 1998. A temperatura e umidade relativa do ar foram medidas diariamente com um psicrômetro. As moléstias observadas e sua incidência máxima foram: requeima (Phytophthora infestans: 100,0%, pinta-preta (Alternaria solani: 98,1%, mofo cinzento (Botrytis cinerea: 55,4%, cladosporiose (Cladosporuim fulvum: 48,9%, septoriose (Septoria lycopersici: 37,5%, talo-oco (Erwinia spp.: 33,0%, murcha de fusarium (Fusarium oxysporum f. sp. lycopersici: 8,4% e podridão de esclerotínia (Sclerotinia sclerotiorum: 1,3%. Valores de UR superiores a 80%, de maneira geral, aumentaram a incidência das moléstias, em sua maioria de origem fúngica. A incidência de moléstias varia entre municípios de uma mesma região climática de acordo com os fatores meteorológicos e práticas de manejo da cultura.

  1. Acid Fostatase Activity in soils croping with potato and pastures from the Catambuco, Pasto, Colombia Actividad de fosfatasa ácida en suelos cultivados con papa y praderas del corregimiento de Catambuco, Pasto-Colombia

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    Burbano Hernán

    2007-03-01

    Full Text Available To estimated the acid phosphatase activity (APA in soil covered with potato and prairie in Catambuco, place Pasto, Colombia; located to 2820 msnm and with average temperature of 12.4oC. The acid phosphatase activity obtained the biggest values in soil covered with prairie in winter time, in addition to that, there were high correlations between the APA and the organic matter off the soil. In the factors sampling times and use of the soil, there were significance statistical differences, with the most significance in soil covered with prairie and with recent use in potato cultivation. The APA obtained the biggest percentage in soil covered with prairie, in front of the soil cultivated with potato for the two evaluated times. Key words: Acid phosphatase activity, use of land, Solanum tuberosumCon el objetivo de estimar y comparar la actividad de la fostatasa ácida (AFA en suelos sembrados con papa y con pastos, se realizó la presente investigación en suelos del corregimiento de Catambuco, municipio de Pasto, Colombia (2.820 msnm, 12.4oC. La mayor actividad de la fosfatasa ácida ocurrió en pradera en época de invierno; además se encontraron altas correlaciones entre AFA y el contenido de materia orgánica. Para los factores épocas de muestreo y uso del suelo hubo diferencias estadísticas altamente significativas y para suelos cubiertos con pradera y con uso reciente en el cultivo de papa. La AFA alcanzó el mayor porcentaje en suelos cubiertos con pradera, frente a los suelos cultivados con papa, para las dos épocas evaluadas. Palabras claves: Actividad fosfatasa ácida, uso del terreno, Solanum tuberosum

  2. Características químicas de solo submetido ao tratamento com esterco líquido de suínos e cultivado com gramíneas forrageiras

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    Queiroz Flávia Martins de

    2004-01-01

    Full Text Available Avaliou-se, neste trabalho, o efeito da aplicação intensiva de esterco líquido de suínos (ELS, pelo método do escoamento superficial, nas características químicas de um solo Podzólico Vermelho-Amarelo cultivado com quatro espécies forrageiras: quicuio da Amazônia (Brachiaria humidicola (Rendle Schweick, braquiária (Brachiaria decumbens Stapf, coastcross (Cynodon dactylon (L. Pers. e tifton 85 (Cynodon spp.. O ELS foi aplicado em parcelas de 4m² e com 5% de declividade, durante 4 meses, na taxa média equivalente a 800kg ha-1d-1 de demanda bioquímica de oxigênio (DBO5. Para caracterização química, amostras de solo foram coletadas à profundidade de 0-0,20m, antes de iniciar o experimento e após o término dele. A aplicação de ELS proporcionou acúmulo de P, K, Na e Zn no solo, enquanto as concentrações de Mg e Cu diminuíram e a de Ca se manteve inalterada. Houve aumento na acidez, na soma de bases, na CTC e redução na saturação por bases. Devido ao acúmulo de nutrientes, recomenda-se monitoramento das características químicas do solo, ao longo de seu perfil e das águas subterrâneas para que se avaliem riscos de contaminação ambiental.

  3. Características químicas de solo cultivado com soja e irrigado com água residuária da suinocultura Chemical characteristics of the soil cultivated with soybean and irrigated with swine wastewater

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    Franciele A. Caovilla

    2010-07-01

    Full Text Available Neste trabalho se avaliou a distribuição "in situ" de fósforo (P, matéria orgânica (MO, potássio (K, cálcio (Ca, magnésio (Mg, capacidade de troca catiônica (T, alumínio (Al, soma de bases (S, saturação por bases (V e do pH, em um solo cultivado com soja irrigada com água residuária proveniente da suinocultura (ARS, com níveis de concentração de 0, 25, 50 e 75%. Constituiu-se um esquema fatorial a partir dos quatros níveis de concentração da ARS, das profundidades de 20, 40 e 60 cm com cinco repetições. Os resultados encontrados demonstraram diferenças significativas apenas para P, K e T no perfil do solo. Para todas as características na profundidade de 60 cm, os respectivos níveis de concentração estiveram bastante próximos aos níveis iniciais, ou seja, antes da aplicação dos tratamentos.In this work the distribution was evaluated "in situ" of phosphorus (P, organic matter (MO, potassium (K, calcium (Ca, magnesium (Mg, cation exchange capacity (CEC, aluminum (Al, sum of bases (S, base saturation (V and pH of a soil cultivated with soybean and irrigated with swine wastewater in the 0, 25, 50 and 75% levels. The factorial scheme was constituted by the 20, 40 and 60 cm soil depths and four wastewater levels with five repetitions. The results showed that significant difference occurred only for P, K and CEC in the soil profile. However, in all parameters, the 60 cm soil depth showed that the concentrations levels are similar to before the aplication of treatments.

  4. Aplicação de nitrogênio e inoculação com rizóbio em feijoeiro cultivado após milho consorciado com braquiária

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    Emerson de Freitas Cordova de Souza

    2011-04-01

    Full Text Available O objetivo deste trabalho foi avaliar o efeito de doses de nitrogênio (N e de inoculação de Rhizobium tropici em feijoeiro cultivado no sistema plantio direto, em sucessão ao milho safrinha consorciado com Urochloa brizantha (Syn. Brachiaria bryzantha ou Urochloa ruziziensis (Syn. Brachiaria ruziziensis. Dois experimentos foram conduzidos, durante dois anos agrícolas, em Latossolo Vermelho distroférrico. Utilizou-se o delineamento de blocos ao acaso, em parcelas subdivididas, com quatro repetições. As parcelas foram constituídas pela inoculação ou não de R. tropici nas sementes, e as subparcelas por quatro doses de N (0, 35, 70 e 140 kg ha-1. Foram feitas avaliações quanto ao número de nódulos por planta, matéria seca de nódulos, teor de N na folha, matéria seca da parte aérea, N acumulado na parte aérea, número de vagens por planta e produtividade de grãos. As variáveis avaliadas, em geral, não foram influenciadas pela inoculação de R. tropici. O acréscimo das doses de N diminuiu a nodulação e aumentou a produção de matéria seca, o teor e o acúmulo de N da parte aérea do feijoeiro. A produtividade de grãos do feijoeiro foi pouco influenciada pela adubação nitrogenada.

  5. Características fisiológicas e de crescimento de cafeeiro sombreado com guandu e cultivado a pleno sol Physiological characteristics and growth of coffee plants grown under shade of pigeonpea and unshaded

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    Heverly Morais

    2003-10-01

    Full Text Available O conhecimento dos efeitos do sombreamento sobre a fisiologia de cafeeiros é importante para se determinar níveis ótimos de radiação e temperatura, bem como para subsidiar estudos sobre o crescimento de plantas sombreadas, a fim de determinar a arquitetura ideal do cafeeiro que maximize a captura da radiação solar disponível em ambientes sombreados. O objetivo deste trabalho foi avaliar características fisiológicas e de crescimento de cafeeiros (Coffea arabica L. cultivados sob sombreamento denso com guandu (Cajanus cajan (L. Millsp. e a pleno sol. O baixo nível de radiação incidente sobre os cafeeiros sombreados com guandu resultou em decréscimos na taxa fotossintética e na transpiração, maior altura de planta, folhas maiores e com menor quantidade de matéria seca. Esses resultados indicam que o excesso de sombra afeta drasticamente a fisiologia e morfologia de C. arabica.The characterization of shade effects on the physiology of coffee is important to determine optimum levels of radiation and temperature, as well as to subsidize studies on growth of shaded plants aiming at determining the ideal coffee plant architecture that maximizes the capture of the available solar radiation in shaded environments. The objective of this work was to evaluate physiological and growth characteristics of coffee (Coffea arabica L. shaded with pigeonpea (Cajanus cajan (L. Millsp. and under full sun. The low level of incident radiation on the coffee shaded with pigeonpea caused decreases in the photosynthetic rate and transpiration, increased plant height and leaf size, but diminished leaf dry matter. These results indicate that the excess of shade drastically affects the physiology and morphology of C. arabica.

  6. Artemisia arborescens L essential oil loaded beads: Preparation and characterization

    OpenAIRE

    Lai, Francesco; Loy, Giuseppe; Manconi, Maria; Manca, Maria Letizia; Fadda, Anna Maria

    2007-01-01

    The purpose of this work was to prepare sodium alginate beads as a device for the controlled release of essential oil for oral administration as an antiviral agent. Different formulations were prepared with sodium alginate as a natural polymer and calcium chloride or glutaraldehyde as a cross-linking agent. Loading capacities of between 86% and 100% were obtained in freshly prepared beads by changing exposure time to the cross-linking agent. Drying of the calcium alginate beads caused only a ...

  7. Chemical Composition and Acaricidal Effects of Essential Oils of Foeniculum vulgare Mill. (Apiales: Apiaceae and Lavandula angustifolia Miller (Lamiales: Lamiaceae against Tetranychus urticae Koch (Acari: Tetranychidae

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    Asgar Ebadollahi

    2014-01-01

    Full Text Available Utilization of synthetic acaricides causes negative side-effects on nontarget organisms and environment and most of the mite species such as two spotted spider mite, Tetranychus urticae Koch, are becoming resistant to these chemicals. In the present study, essential oils of fennel, Foeniculum vulgare Mill., and lavender, Lavandula angustifolia Miller, were hydrodistilled using Clevenger apparatus and chemical composition of these oils was analyzed by GC-MS. Anethole (46.73%, limonene (13.65%, and α-fenchone (8.27% in the fennel essential oil and linalool (28.63%, 1,8-cineole (18.65%, and 1-borneol (15.94% in the lavender essential oil were found as main components. Contact and fumigant toxicity of essential oils was assessed against adult females of T. urticae after 24 h exposure time. The essential oils revealed strong toxicity in both contact and fumigant bioassays and the activity dependeds on essential oil concentrations. Lethal concentration 50% for the population of mite (LC50 was found as 0.557% (0.445–0.716 and 0.792% (0.598–1.091 in the contact toxicity and 1.876 μL/L air (1.786–1.982 and 1.971 μL/L air (1.628–2.478 in the fumigant toxicity for fennel and lavender oils, respectively. Results indicated that F. vulgare and L. angustifolia essential oils might be useful for managing of two spotted spider mite, T. urticae.

  8. UMTRA water sampling technical (peer) review. Responses to observations, comments, and recommendations submitted by C. Warren Ankerberg (Geraghty ampersand Miller, Inc.)

    International Nuclear Information System (INIS)

    At the request of the Office of Independent Technical Review for the U.S. Department of Energy (DOE), Uranium Mill Tailings Remedial Action (UMTRA) Project, an independent technical review (peer review) was conducted during the period of September 15-17, 1992. The review was conducted by C. Warren Ankerberg (Geraghty ampersand Miller, Inc., Tampa, Florida) and Don Messinger (Roy F. Weston, Inc., West Chester, Pennsylvania). The peer review included a review of written documentation [water sampling standard operating procedures (SOP)], an inspection of technical reports and other deliverables, a review of staff qualifications and training, and a field visit to evaluate the compliance of field procedures with SOPs. The approach of the peer reviewers was to verify that the program meets the following criteria: Reported results are traceable to and consistent with recorded data. The basic assumptions and acceptance criteria are valid. Data are traceable to their origin and to reported analytical results. The procedures employed are consistent both internally and externally with written SOPs and regulatory guidelines. Inferences and conclusions are soundly based. The procedures and/or reports generated present work that satisfies the local, state and/or Federal regulatory requirements as applicable. The approach is consistent with industry standards and/or state-of-the-art technology, as practical. The data generated by activities are legally defensible and technically sound. UMTRA staff are adequately trained and qualified for the work. This document is a response to the observations, comments, and recommendations submitted by C. Warren Ankerberg following his review. The format of this document is to present the findings and recommendations verbatim from Mr. Ankerberg's report, followed by responses from the UMTRA Project staff. Included in the responses from the UMTRA Project staff are recommended changes in SOPs and strategies for implementing the changes

  9. Quince (Cydonia oblonga Miller) peel polyphenols modulate LPS-induced inflammation in human THP-1-derived macrophages through NF-κB, p38MAPK and Akt inhibition

    International Nuclear Information System (INIS)

    Highlights: ► Quince peel polyphenols inhibit LPS-induced secretion of TNF-α and IL-8. ► Quince peel polyphenols augment LPS-induced secretion of IL-10 and IL-6. ► Quince peel polyphenols-mediated inhibition of LPS-induced secretion of TNF-α is partially mediated by IL-6. ► The anti-inflammatory effects of quince polyphenols pass through NF-κB, p38MAPK and Akt inhibition. -- Abstract: Chronic inflammation is a hallmark of several pathologies, such as rheumatoid arthritis, gastritis, inflammatory bowel disease, atherosclerosis and cancer. A wide range of anti-inflammatory chemicals have been used to treat such diseases while presenting high toxicity and numerous side effects. Here, we report the anti-inflammatory effect of a non-toxic, cost-effective natural agent, polyphenolic extract from the Tunisian quince Cydonia oblonga Miller. Lipopolysaccharide (LPS) treatment of human THP-1-derived macrophages induced the secretion of high levels of the pro-inflammatory cytokine TNF-α and the chemokine IL-8, which was inhibited by quince peel polyphenolic extract in a dose-dependent manner. Concomitantly, quince polyphenols enhanced the level of the anti-inflammatory cytokine IL-10 secreted by LPS-treated macrophages. We further demonstrated that the unexpected increase in IL-6 secretion that occurred when quince polyphenols were associated with LPS treatment was partially responsible for the polyphenols-mediated inhibition of TNF-α secretion. Biochemical analysis showed that quince polyphenols extract inhibited the LPS-mediated activation of three major cellular pro-inflammatory effectors, nuclear factor-kappa B (NF-κB), p38MAPK and Akt. Overall, our data indicate that quince peel polyphenolic extract induces a potent anti-inflammatory effect that may prove useful for the treatment of inflammatory diseases and that a quince-rich regimen may help to prevent and improve the treatment of such diseases.

  10. Hydrogeochemical modelling of fluid–rock interactions triggered by seawater injection into oil reservoirs: Case study Miller field (UK North Sea)

    International Nuclear Information System (INIS)

    A hydrogeochemical model is presented and applied to quantitatively elucidate interdependent reactions among minerals and formation water–seawater mixtures at elevated levels of CO2 partial pressure. These hydrogeochemical reactions (including scale formation) occur within reservoir aquifers and wells and are driven by seawater injection. The model relies on chemical equilibrium thermodynamics and reproduces the compositional development of the produced water (formation water–seawater mixtures) of the Miller field, UK North Sea. This composition of the produced water deviates from its calculated composition, which could result solely from mixing of both the end members (formation water and seawater). This indicates the effect of hydrogeochemical reactions leading to the formation and/or the dissolution of mineral phases. A fairly good match between the modelled and measured chemical composition of produced water indicates that hydrogeochemical interactions achieve near-equilibrium conditions within the residence time of formation water–seawater mixtures at reservoir conditions. Hence the model enables identification of minerals (including scale minerals), to quantitatively reproduce and to predict their dissolution and/or formation. The modelling results indicate that admixing of seawater into formation water triggers the precipitation of Sr–Barite solid solution, CaSO4 phases and dolomite. In contrast, calcite and microcrystalline quartz are dissolved along the seawater flow path from the injection well towards the production well. Depending on the fraction of seawater admixed, interdependent reactions induce profound modifications to the aquifer mineral phase assemblage. At low levels of seawater admixture, Ba–Sr sulfate solid solution is precipitated and coupled to concurrent dissolution of calcite and microcrystalline quartz. Massive dissolution of calcite and the formation of CaSO4 phases and dolomite are triggered by intense seawater admixture

  11. The Miller cycle effects on improvement of fuel economy in a highly boosted, high compression ratio, direct-injection gasoline engine: EIVC vs. LIVC

    International Nuclear Information System (INIS)

    Highlights: • At high load, LIVC is superior over EIVC in improving fuel economy. • The improvement with LIVC is due to advanced combustion phasing and increased pumping work. • At low load, EIVC is better than LIVC in improving fuel economy. • Pumping loss with EIVC is smaller than with LIVC at low load. • But heat release rate with EIVC is slower than with LIVC. - Abstract: A combination of downsizing, highly boosting and direct injection (DI) is an effective way to improve fuel economy of gasoline engines without the penalties of reduced torque or power output. At high loads, however, knock problem becomes severer when increasing the intake boosting. As a compromise, geometric compression ratio (CR) is usually reduced to mitigate knock, and the improvement of fuel economy is discounted. Application of Miller cycle, which can be realized by either early or late intake valve closing (EIVC or LIVC), has the potential to reduce the effective CR and suppress knock. In this paper, the effects of EIVC and LIVC on the fuel economy of a boosted DI gasoline production engine reformed with a geometric CR of 12.0 are experimentally compared at low and high loads. Compared to the original production engine with CR 9.3, at the high load operation, the brake specific fuel consumption (BSFC) is improved by 4.7% with CR12.0 and LIVC, while the effect of EIVC on improving BSFC is negligibly small. At the low load operation, combined with CR12.0, LIVC and EIVC improve the fuel economy by 6.8% and 7.4%, respectively, compared to the production engine. The mechanism behind the effects of LIVC and EIVC on improving the fuel economy is discussed. These results will be a valuable reference for engine designers and researchers

  12. A Call for Literary Studies: An Interview with J. Hillis Miller%对文学研究的呼唤:J.希利斯·米勒访谈录

    Institute of Scientific and Technical Information of China (English)

    生安锋

    2006-01-01

    J.希利斯·米勒是加州大学厄湾分校英文与比较文学系杰出教授、国际文学理论学会主席、美国艺术与科学院院士、美国解构批评"耶鲁学派"主要成员、当代著名文学批评家、清华大学外语系荣誉教授.米勒先生将毕生的精力投入到文学研究中,并为推动中美文学理论界和比较文学界的互动与交流、为世界文学研究的发展作出了卓越的贡献.在中国深圳大学召开的中国比较文学学会第八届年会暨国际学术讨论会期间,米勒先生接受了本刊特约记者、清华大学副教授生安锋的采访.米勒指出,人们对解构批评存在着很多误读和误解,解构批评家如德里达等其实大都能够自觉地承担起作为社会良心的道德责任并各自以不同的方式对现实进行了有力的干预.米勒还指出了中外比较文学界目前所面临的问题与比较文学学科的发展前景,描绘了理想的大学体制,表现了对学术自由的憧憬.%J. Hillis Miller is Distinguished Research Professor of English and Comparative Literature at the University of California (Irvine) , Chairman of the International Literary Theory Association, academician of the American Academy of Art and Science, member of the "Yale School" of deconstruction, and honorary professor of Tsinghua University. Professor Miller loves literature and has been devoting his life to literary studies. During the past several decades, Miller has frequently participated in various academic activities in China to promote communication in the literary theory circle and comparative literature circle between the United States and China, contributing extraordinarily to the progress in world literary studies. At the 8th Triennial Congress of CCLA and the International Conference in Shenzhen, 2005, he was interviewed by Sheng Anfeng, guest journalist of Foreign Literature Studies and associate professor of English at Tsinghua University. Miller pointed

  13. Japan is far... / Peeter Miller

    Index Scriptorium Estoniae

    Miller, Peeter

    2007-01-01

    Eesti suursaadik Jaapanis Eesti ja Jaapani suhete ajaloost, Jaapani keisri Akihito ja keisrinna Michiko ametlikust visiidist Eestisse 2007. a. mais. Juuresolevatel fotodel president Toomas Hendrik Ilves ja proua Evelin Ilves kõrgeid külalisi vastu võtmas

  14. Miller cycle analysis using EGM

    OpenAIRE

    Ribeiro, Bernardo Sousa; Martins, Jorge

    2005-01-01

    The Entropy Generation Minimization (EGM) method is based on the analysis by three sciences (thermodynamics, fluid flow and heat transfer) of the different processes that may occur in a system or in an equipment. Herein the EGM method is applied to internal combustion engines to determine the entropy generation caused by different processes. A model incorporating entropy generation calculations is used to assess various engines configurations. Otto cycle was tested and...

  15. Quince (Cydonia oblonga Miller) peel polyphenols modulate LPS-induced inflammation in human THP-1-derived macrophages through NF-{kappa}B, p38MAPK and Akt inhibition

    Energy Technology Data Exchange (ETDEWEB)

    Essafi-Benkhadir, Khadija [Laboratoire d' epidemiologie Moleculaire et Pathologie Experimentale Appliquee Aux Maladies Infectieuses, Institut Pasteur de Tunis (Tunisia); Refai, Amira [Laboratoire de Recherche sur la Transmission, le Controle et l' immunobiologie des Infections, Institut Pasteur de Tunis (Tunisia); Riahi, Ichrak [Laboratoire d' epidemiologie Moleculaire et Pathologie Experimentale Appliquee Aux Maladies Infectieuses, Institut Pasteur de Tunis (Tunisia); Fattouch, Sami [Laboratory LIP-MB National Institute of Applied Sciences and Technology, Tunis (Tunisia); Karoui, Habib [Laboratoire d' epidemiologie Moleculaire et Pathologie Experimentale Appliquee Aux Maladies Infectieuses, Institut Pasteur de Tunis (Tunisia); Essafi, Makram, E-mail: makram.essafi@pasteur.rns.tn [Laboratoire de Recherche sur la Transmission, le Controle et l' immunobiologie des Infections, Institut Pasteur de Tunis (Tunisia)

    2012-02-03

    Highlights: Black-Right-Pointing-Pointer Quince peel polyphenols inhibit LPS-induced secretion of TNF-{alpha} and IL-8. Black-Right-Pointing-Pointer Quince peel polyphenols augment LPS-induced secretion of IL-10 and IL-6. Black-Right-Pointing-Pointer Quince peel polyphenols-mediated inhibition of LPS-induced secretion of TNF-{alpha} is partially mediated by IL-6. Black-Right-Pointing-Pointer The anti-inflammatory effects of quince polyphenols pass through NF-{kappa}B, p38MAPK and Akt inhibition. -- Abstract: Chronic inflammation is a hallmark of several pathologies, such as rheumatoid arthritis, gastritis, inflammatory bowel disease, atherosclerosis and cancer. A wide range of anti-inflammatory chemicals have been used to treat such diseases while presenting high toxicity and numerous side effects. Here, we report the anti-inflammatory effect of a non-toxic, cost-effective natural agent, polyphenolic extract from the Tunisian quince Cydonia oblonga Miller. Lipopolysaccharide (LPS) treatment of human THP-1-derived macrophages induced the secretion of high levels of the pro-inflammatory cytokine TNF-{alpha} and the chemokine IL-8, which was inhibited by quince peel polyphenolic extract in a dose-dependent manner. Concomitantly, quince polyphenols enhanced the level of the anti-inflammatory cytokine IL-10 secreted by LPS-treated macrophages. We further demonstrated that the unexpected increase in IL-6 secretion that occurred when quince polyphenols were associated with LPS treatment was partially responsible for the polyphenols-mediated inhibition of TNF-{alpha} secretion. Biochemical analysis showed that quince polyphenols extract inhibited the LPS-mediated activation of three major cellular pro-inflammatory effectors, nuclear factor-kappa B (NF-{kappa}B), p38MAPK and Akt. Overall, our data indicate that quince peel polyphenolic extract induces a potent anti-inflammatory effect that may prove useful for the treatment of inflammatory diseases and that a quince

  16. Desarrollo vegetativo de patrones cítricos cultivados en condiciones de invernadero bajo dos sistemas de riego Vegetative development of citrus seedlings cultivated at greenhouse conditions and submitted to two irrigations systems

    Directory of Open Access Journals (Sweden)

    Gilmar Schäfer

    2006-08-01

    Full Text Available En el presente estudio se evaluó el desarrollo vegetativo de patrones cítricos cultivados en invernadero bajo dos sistemas de riego. El experimento se realizó en la Estação Experimental Agronômica de la Universidade Federal do Rio Grande do Sul, ubicada en Eldorado do Sul, Rio Grande do Sul, Brasil, entre los meses de septiembre de 2003 y abril de 2004, totalizando 225 días de experimentación. El diseño experimental fue de parcelas subdivididas, en factorial 2 x 3, con 4 repeticiones de 22 contenedores cada. En las parcelas principales se evaluaron los sistemas de riego (microaspersión y capilaridad y en las subparcelas los patrones cítricos Poncirus trifoliata (L. Raf., citrangero 'C37' [P. trifoliata x Citrus sinensis (L. Osb. cv. Pêra] y lima 'Rangpur' (C. limonia Osb.. En condiciones de invernadero los patrones cítricos presentan un desarrollo vegetativo más rápido bajo riego por capilaridad respecto a la microaspersión. Los patrones cítricos evaluados presentan desarrollos vegetativos distintos, donde el citrangero 'C37' supera a los demás.The aim of the present work was to evaluate the vegetative development of citrus rootstock seedlings cultivated under greenhouse conditions with two irrigation systems. The experiment was conducted at the Estação Experimental Agronômica , Universidade Federal do Rio Grande do Sul, located in Eldorado do Sul, Rio Grande do Sul, Brazil, from September 2003 to April 2004, totalizing 225 days of experimentation. The experimental design was a split-plot, in a 2x3 factorial, with 4 replications of 22 pots each. In the main plot the irrigation systems was evaluated (micro sprinkler and capillarity and in the split-plot the citrus rootstocks [Trifoliate orange - Poncirus trifoliata (L. Raf., 'C37' citrange - P. trifoliata x Citrus sinensis (L. Osb. cv. Pêra and 'Rangpur' lime - C. limonia Osb.] were evaluated. The main result showed in conditions of greenhouse citrus rootstock seedlings

  17. Influência da taxa de carga orgânica no desempenho de sistemas alagados construídos cultivados com forrageiras Influence of organic loading rate on the performance of constructed wetlands cultivated with grass

    Directory of Open Access Journals (Sweden)

    Antonio Teixeira de Matos

    2010-03-01

    Full Text Available Estudou-se a influência da taxa de carga orgânica (TCO no desempenho de sistemas alagados construídos (SACs de escoamento subsuperficial. Cada SAC foi constituído por um tanque de 0,40 x 0,73 x 3,00 m. A água residuária de laticínios (ARL foi aplicada com vazão de 60 L.d-1. O tratamento testemunha foi constituído por um SAC sem vegetação, ao qual foi aplicada uma TCO de 130 kg.ha-1 d-1 de DBO. Nos SACs cultivados com capim-elefante e com capim-tifton 85, foram aplicadas TCOs de 66, 130, 190, 320 e 570 kg.ha-1 d-1 de DBO. Os SACs se mostraram eficientes na remoção de DBO, DQO, SST, ST e nitrogênio. TCOs entre 250 e 400 kg.ha-1 d-1 de DBO proporcionaram maiores eficiências na remoção da carga orgânica e acima de 400 kg.ha-1 d-1 na de sólidos da água residuária. A presença de plantas nos SACs mostrou-se importante na remoção de N, K e Na da ARL.The present paper was carried out to study the influence of organic loading rate (OLR on the performance of subsurface flow constructed wetlands systems (CWs. Each CW was composed of a sealed tank of 0.40 x 0.73 x 3.00 m. The dairy industry wastewater was applied with flow rate of 60 L.d-1. In the control system, consisting of CW without vegetation, 130 kg.ha-1 d-1 of BOD was applied. In vegetated CWs (cultivated with elephant grass and tifton 85 bermudagrass, OLRs of 66, 130, 190, 320 and 570 kg.ha-1 d-1 of BOD were applied . The CW systems were efficient in the removal of BOD, COD, TSS, TS and nitrogen. OLRs between 250 and 400 kg.ha-1 d-1 BOD provide greater efficiencies in organic loading removal and above 400 kg.ha-1 d-1 in the solids removal from wastewater. The presence of the plants in the CWs showed to be important in the removal of N, K and Na of wastewater.

  18. Desempenho de genótipos de milho cultivados com diferentes quantidades de palha de aveia-preta e doses de nitrogênio Corn genotype performance under black oat crop residues and nitrogen fertilization

    Directory of Open Access Journals (Sweden)

    Ademir de Oliveira Ferreira

    2009-02-01

    Full Text Available O objetivo deste trabalho foi avaliar a resposta de genótipos de milho (Zea mays L., cultivado em sistema de plantio direto, a diferentes quantidades de palha de aveia-preta (Avena strigosa Schreb. e doses de nitrogênio. O experimento foi conduzido em um Latossolo Vermelho eutrófico, em delineamento experimental de blocos ao acaso em parcelas subsubdivididas, com três repetições. As parcelas principais foram representadas pelas quantidades de palha na superfície do solo (sem palha, 5,16 e 10,32 mg ha-1. As subparcelas foram representadas por três genótipos de milho e as subsubparcelas constituíram-se das doses 0, 60, 120, 180 e 240kg ha-1 de nitrogênio. O aumento da dose de nitrogênio reduziu a requeima das folhas e promoveu o suprimento adequado de nitrogênio das plantas de milho em todos os tratamentos com palha de aveia-preta. Os genótipos de milho diferenciaram-se quanto à produtividade de grãos, ao aproveitamento do nitrogênio mineralizado da palha e ao comprimento do sistema radicular, quando submetidos a diferentes quantidades de palha de aveia-preta e de nitrogênio.The objective of this work was to assess the performance of corn (Zea maysL. genotypes as affected by inputs of black oat (Avena strigosa Schreb. residues applied on the soil surface and nitrogen fertilization under no-tillage system in a Typical Haplustox. The experiment was carried out in a complete randomized block design, arranged in split-split plots with three replicates. The main plots consisted of the amount of crop residues on the soil surface (no crop residue, 5.16 and 10.32 mg ha-1. The split plots were three corn genotypes, and the split-split plots were five nitrogen rates: 0, 60, 120, 180, and 240kg ha-1. An increase in the nitrogen rates decreased nitrogen deficiency and provided an adequate nitrogen supply for corn, under all the amounts of black oat residues. The corn genotypes grown with different amounts of black oat residues and nitrogen

  19. Experimental infection with different bacterial strains in larvae and juvenile Litopenaeus vannamei reared in Santa Catarina State, Brazil = Infecção experimental em larvas e juvenis de Litopaenaeus vannamei cultivados no Estado de Santa Catarina, Brasil

    Directory of Open Access Journals (Sweden)

    Celso Carlos Buglione

    2010-07-01

    com V. alginolyticus, representado por redução significativa no número total de hemócitos circulantes e aumento na atividade da fenoloxidase e do título aglutinante do soro (p < 0,05. Os resultados deste ensaio demonstraram que a cepa de V. alginolyticus isolada apresentou alto poder de virulência para larvas e juvenis de camarão marinho cultivado.

  20. Rendimento e conservabilidade pós-colheita de genótipos de cebola cultivados em solo de várzea Yield and postharvest storability of onion genotypes grown in lowland

    Directory of Open Access Journals (Sweden)

    Jorge Nadir Trevisan

    1999-09-01

    Full Text Available Para determinar o rendimento de bulbos curados de seis genótipos de cebola cultivados em solo de várzea, e a conservabilidade pós-colheita destes, em ambiente natural, foram conduzidos dois experimentos na Universidade Federal de Santa Maria, em 1995 e 1996. Todos os genótipos apresentaram rendimento comercial acima de 20t/ha. Os genótipos ‘Crioula’ apresentaram os melhores rendimentos quanti-qualitativos. Houve diferença significativa para rendimento comercial e não comercial, peso médio de bulbos e rendimento de bulbos classes 2 e 3. Até 100 dias de armazenamento, os bulbos de todos os genótipos sofreram perda de peso de cerca de 15%. Não houve interação significativa entre genótipos e número de dias de armazenamento. Houve correlação entre perdas de peso e número de bulbos e duração do período de armazenamento. Houve correlação negativa entre o número e o peso dos bulbos e as percentagens de perda de peso e de número de bulbos.To determine yield of six onion genotypes grown in lowland, and postharvest room storability of cured bulbs, two experiments were performed at the Federal University of Santa Maria in 1995 and 1996. Yields of marketable bulbs were over 20t/ha for all genotypes under study. Yields of ‘Crioula’ genotypes were the highest, quantitatively and qualitatively. Marketable bulb yields, culls, average bulb weight and yields of bulb grades 2 and 3 were significantly different. Up to 100 days under storage, bulb weight loss was approximately 15% for all genotypes. No significant interaction between genotypes and storage period was found. Losses in bulb weight and bulb number correlated with storage period. Bulb number and bulb weight correlated negatively with percentages of bulb weight loss and bulb number loss.

  1. Uniformidade de sementes de genótipos de feijão-caupi cultivados em dois ambientes no Estado de Roraima. = Seeds uniformity from cowpea genotypes cultivated in two environments of the State of Roraima.

    Directory of Open Access Journals (Sweden)

    Katherine Rodrigues Arruda

    2009-06-01

    Full Text Available - Objetivou-se com o presente trabalho avaliar a uniformidade de sementes de 19 genótipos de feijão-caupi cultivados em dois ambientes no Estado de Roraima. Foram utilizadas sementes produzidas nos Campos Experimentais Serra da Prata (CESP e do Monte Cristo (CEMC pertencentes a Embrapa Roraima, produzidas durante o ano de 2008. Amostras de 400 g de sementes de feijão-caupi foram separadas e pesadas. Após a pesagem, cada amostra foi classifi cada por cinco peneiras de crivos redondos e oblongos de diferentes dimensões. As sementes retidas em cada peneira foram pesadas separadamente. Sementes da maior porção foram avaliadas quanto a massa de mil sementes e germinação. Na análise dos resultados de uniformidade verificou-se que 89,5% das sementes produzidas no CEMC são maiores que 4,5 x 22 mm e no CESP 90,0%. Quanto a massa média de mil sementes não se verifica diferenças entre os dois ambientes, e entre os materiais variação de 127,5 a 219,6 g. As sementes do CESP apresentam qualidade fisiológica superior as do CEMC. = The objective of this study was to evaluated the uniformity of seeds from 19 cowpea genotypes in two environment of Roraima State. The seeds utilized were produced in the experimental fields of Serra da Prata (CESP and Monte Cristo (CEMC, belonging to Embrapa Roraima. Samples of 400 g of cowpea seeds were separated and weighed and classified by five sieves with round and oblong holes of different dimensions, being weighed separately. Seeds retained in each sieve were weighed separately. Seeds withheld in 4.5 x 22 mm sieve were assessed according to mass of a thousand seeds and germination. Results showed that 89.5 % of seeds produced in CEMC are bigger than 4.5 x 22 mm and in CESP 9 0.0%. Concerning to average mass of a thousand seeds, no differences were verified between the two environments, while materials ranged from 127.5 to 219.6 g. Seeds of CESP showed physiological quality superior than CEMC.

  2. Análise do óleo essencial de folhas de três quimiotipos de Lippia alba (Mill. N. E. Br. (Verbenaceae cultivados em condições semelhantes

    Directory of Open Access Journals (Sweden)

    E.S. Tavares

    2005-03-01

    Full Text Available A composição do óleo essencial de Lippia alba apresenta variação quantitativa e qualitativa, levando à separação em quimiotipos. O trabalho tem como objetivo analisar o óleo essencial de folhas de três quimiotipos de Lippia alba, provenientes de diferentes regiões do Brasil, cultivados em condições semelhantes, a fim de verificar se as diferenças na composição do óleo devem-se a fatores ambientais ou a variação genética infraespecífica e se a floração influencia o rendimento e a composição do óleo. Os quimiotipos produtores de citral, carvona e linalol, foram denominados Lippia alba 1, 2 e 3, respectivamente. Os óleos essenciais foram extraídos por hidrodestilação de folhas e analisados por cromatografia com fase gasosa e cromatografia com fase gasosa acoplada ao espectrômetro de massas. O melhor rendimento foi obtido das plantas no estágio vegetativo. A composição do óleo essencial manteve-se inalterada para os três quimiotipos após cultivo em condições semelhantes e também não variou qualitativamente durante o crescimento vegetativo e floração. Os dados obtidos reforçam a idéia que as diferenças na composição do óleo essencial dos quimiotipos refletem variações genotípicas entre as plantas e que a extração de óleo essencial de L. alba deve ser efetuada na fase de crescimento vegetativo, quando é maior o rendimento do óleo e a porcentagem dos componentes majoritários.

  3. Síndrome de Miller Fisher: apresentação de quatro casos e revisão da posição nosológica

    OpenAIRE

    Solange G. Camargo; Regina M. Papais-Alvarenga

    1989-01-01

    Neste trabalho são descritos quatro casos típicos, recentes, da síndrome de Miller Fisher, acrescidos de revisão da literatura sobre sua posição nosológica. Na falta de maiores esclarecimentos anatomopatológicos, não foi possível responder com certeza à questão da origem da Síndrome. Tanto pela literatura quanto nos casos ora descritos, parece ocorrer envolvimento combinado do sistema nervoso central e do sistema nervoso periférico.

  4. Reforming the teaching of physical examination based on the Miller Pyramid for Assessing Clinical Competence%根据Miller学习原理改革体格检查教学的实践

    Institute of Scientific and Technical Information of China (English)

    王进进; 张宏; 吕红玲; 张彦

    2011-01-01

    Based on the Miller Pyramid for assessing clinical competence, this article analyzed the existing problems in the practice of teaching physical examination and provided suggestions for possible reforms.%根据Miller金字塔医学生能力进阶的学习原理,对目前医学生体格检查教学实践中存在的问题作了分析,并采取了相应的改革对策。

  5. Evaluación de la actividad anti-candida y anti-aspergillus de aceites esenciales de lippia alba (miller) n.e brown quimiotipo carvonalimoneno y su asociación con sus componentes mayoritarios

    OpenAIRE

    Jehidys Montiel; Ana Cecilia Mesa Arango; Camilo Durán; Juan Gabriel Bueno; Liliana Betancur Galvis; Elena Stashenko

    2007-01-01

    Las plantas son fuentes de metabolitos secundarios bioactivos y los aceites esenciales de Lippia alba están mostrando en los últimos años actividad antimicótica. En este estudio la actividad antifúngica de cinco aceites de Lippia Alba (Miller) N.E Brown quimiotipo carvona- limoneno provenientes de diferentes partes del país fueron evaluados mediante la determinación de la concentración mínima inhibitoria (CMI). Para tal fin se utilizaron las técnicas de microdilución en cald...

  6. Comparative study on the content of polysaccharide in Aloe barbadensis Miller and Aloe ;vera L. Var. Chinensis (Haw.) Berger%库拉索芦荟与斑纹芦荟的多糖含量比较研究

    Institute of Scientific and Technical Information of China (English)

    唐建红; 刘川玉; 何洁

    2016-01-01

    Objective To determine the content of polysaccharide in Aloe barbadensis Miller and Aloe vera L. Var. Chinensis(Haw.)Berger. Methods Carubinose was used as reference substance, measured and compared polysaccharide content with the method of UV spectrophotometry at 610 nm absorbance of growth years for 1, 2, 3, 4 and 5 years of Aloe barbadensis Miller and Aloe vera L. Var. Chinensis(Haw.)Berger. Results The mannose and the absorbance was linear (r=0.998 5) in the range of 0.05 - 0.60 g/L, and the content of Aloe barbadensis Miller polysaccharide in the measured growth period was respectively 1.201, 1.485, 1.665, 2.355 and 5.040 mg/g. The content of polysaccharide in Aloe vera L. Var. Chinensis(Haw.)Berger was 0.780, 0.900, 1.035, 1.650 and 2.355 mg/g. Conclusions The content of polysaccharide in Aloe barbadensis Miller and Aloe vera L. Var. Chinensis(Haw.)Berger differed in growth years, which increased with aging and polysaccharide content in the same age of Aloe barbadensis Miller was significantly higher than that of the Aloe vera L. Var. Chinensis(Haw.)Berger.%目的:测定不同年限的库拉索芦荟与斑纹芦荟的多糖含量。方法以D-甘露糖为对照品,采用紫外分光光度法,测定生长年限为1、2、3、4及5年的库拉索芦荟和斑纹芦荟的多糖含量,并对其进行比较分析。结果甘露糖在0.05~0.60 g/L范围内与吸光度呈良好的线性关系(r=0.9985),测得生长年限为1、2、3、4及5年的库拉索芦荟多糖含量分别为1.201、1.485、1.665、2.355、5.040 mg/g;斑纹芦荟的多糖含量分别为0.780、0.900、1.035、1.650、2.355 mg/g。结论不同生长年限的库拉索芦荟和斑纹芦荟的多糖含量有差别,其含量随年限增长而增加,相同年限库拉索芦荟的多糖含量明显高于斑纹芦荟。

  7. Estoque e qualidade da matéria orgânica de um solo cultivado com cana-de-açúcar por longo tempo Stocks and quality of organic matter in an inceptisol under long-term sugarcane cultivation

    OpenAIRE

    Luciano Pasqualotto Canellas; Marihus Altoé Baldotto; Jader Galba Busato; Claúdio Roberto Marciano; Sonia Cabral Menezes; Naira Machado da Silva; Victor Marcos Rumjanek; Ary Carlos Xavier Velloso; Marcelo Luiz Simões; Ladislau Martin-Neto

    2007-01-01

    O objetivo deste trabalho foi avaliar o estoque e a qualidade da matéria orgânica (MOS) por meio de análises de ressonância magnética nuclear (RMN) de 13C no estado sólido de amostras intactas de solo e de ressonância paramagnética eletrônica (RPE) e fluorescência dos ácidos húmicos (AH) isolados de um Cambissolo cultivado com cana-de-açúcar por longo tempo. Numa situação, a cana-de-açúcar foi cultivada por 55 anos sem a queima por ocasião da colheita. A outra situação envolveu uma área culti...

  8. Época de aplicação de nitrogênio no milho cultivado em sucessão à aveia preta no sistema plantio direto Time of nitrogen application in no-tillage corn crop planted over black oats

    OpenAIRE

    Volnei Pauletti; Luiz Carlos Costa

    2000-01-01

    Este trabalho teve como objetivo avaliar o efeito de épocas de aplicação de N sobre parâmetros de rendimento de milho, cultivado em sucessão à aveia preta em plantio direto. Os experimentos foram conduzidos no ano agrícola de 1996/97 em três campos demonstrativos e experimentais pertencentes à Fundação ABC, nos Campos Gerais do Paraná. O delineamento experimental foi de blocos ao acaso com parcelas subdivididas, sendo nas parcelas a adubação na aveia (O e 30kg há-1 de N na semeadura) e nas su...

  9. Alteração química de solo cultivado com capim Tifton 85 (Cynodon spp.) e fertirrigado com percolado de resíduo sólido urbano - doi: 10.4025/actascitechnol.v33i3.6124

    OpenAIRE

    Denise Freitas Silva; Antonio Teixeira de Matos; Odilon Gomes Pereira; Paulo Roberto Cecon; Rafael de Oliveira Batista; Débora Astoni Moreira

    2011-01-01

    Avaliaram-se as características químicas de um solo cultivado com capim Tifton 85 (Cynodon spp.) após aplicação de diferentes taxas de percolado de resíduo sólido urbano (RSU). Empregou-se um reservatório de PVC, com capacidade de 5.000 L, preenchido com RSU novo, para produzir o percolado utilizado na pesquisa. O percolado foi aplicado a taxas de 0, 250, 500, 750, 1000 kg ha-1 dia-1 de DBO. Mediram-se o pH, o conteúdo de matéria orgânica (MO), N-total, NO3-, NH4+, P disponível e as concentra...

  10. Partial pressure (or fugacity) of carbon dioxide, salinity and other variables collected from Surface underway observations using Carbon dioxide (CO2) gas analyzer, Shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement and other instruments from the MILLER FREEMAN in the Bering Sea, Coastal Waters of SE Alaska and others from 2009-05-16 to 2010-10-08 (NODC Accession 0117502)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0117502 includes Surface underway, chemical, meteorological and physical data collected from MILLER FREEMAN in the Bering Sea, Coastal Waters of SE...

  11. Nitrogen and age on the quality of elephant grass for agroenergy purpose grown in OxisolNitrogênio e idade de corte na qualidade da biomassa de capimelefante para fins agroenergéticos cultivado em Latossolo

    Directory of Open Access Journals (Sweden)

    Rilner Alves Flores

    2013-03-01

    Full Text Available Nowadays one of the major challenge for research is the production of alternative agrifuels energy material derived from plant biomass. Allied to this, the proper management of nitrogen, becomes fundamental for productivity gains and improvement in quality of elephant grass biomass. Thus, the objective was to evaluate the effect of nitrogen fertilization and plant age effect on the quality of elephant grass biomass for energy purposes. The experiment was performed with genotype Paraíso, grown in a dystrophic Oxisol in the southern state of Tocantins. The design was randomized blocks with subdivided plots, situating plots as nitrogen rates (0, 50, 100 and 150 kg ha-1 and the subplots cutting age (120, 150 and 180 days after planting four replicates. We evaluated the relationship carbon/nitrogen (C:N and leaf/stem (L:S, levels of neutral detergent fiber (NDF and ash contents in dry biomass produced. The application of nitrogen increased by 12% to C:N ratio of the plant. The advanced age of cut forage was increased 9% in the C:N plant, however, decreased by 12 and 14% levels of ash produced in the stem and leaves, respectively. The production of elephant grass for agrifuels is feasible with management system proposed, quality characteristics desirable, such as high C:N ratio, above 40% and higt fiber content, above 50%. Atualmente um dos grandes desafios para a pesquisa de agroenergia é a produção de material energético alternativo derivado da biomassa vegetal. Aliado a isso, o manejo adequado do nitrogênio, torna-se fundamental para obter ganhos de produtividade e melhoria na qualidade da biomassa de capim-elefante. Desse modo, objetivou-se avaliar o efeito da adubação nitrogenada e da idade de corte do capimelefante (Pennisetum purpureum na qualidade da biomassa da forrageira para fins agroenergéticos. O experimento foi realizado com o genótipo Paraíso, cultivado em um Latossolo Vermelho Amarelo distrófico no sul do Estado de

  12. GENE FLOW BETWEEN RED RICE AND CULTIVATED RICE ESTIMATED BY MICROSATELLITE MARKERS FLUXO GÊNICO ENTRE ARROZ VERMELHO E ARROZ CULTIVADO ESTIMADO POR MEIO DE MARCADORES MICROSSATÉLITES

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    Francisco , Moura Neto

    2007-09-01

    Full Text Available

    The study aimed to evaluate the capacity of SSR markers to detect the gene flow between the red rice (RR and the cultivated rice (CR. SSR is currently used in plant genomic analysis due to the high information content, to be co-dominant, and based on the PCR reaction. The field experiment was organized in ten concentric circles, 5 m to 50 m apart from a central red rice plant, assumed as the pollen donor. One hundred twenty rice CR plants, cv. BR-Irga 409, were planted in the intersections of the concentric circles and the twelve radii. From 51 SSR markers, four were selected due to their capacity to detect the polymorphism between RR and CR, aiming to identify RR alleles in seeds produced by BR-Irga 409 plants. The maximum distance found for gene flow between RR and CR plants was 10 m from the RR plant. In theory, at 0.1% cross pollination rate, this distance can generate 4,710 hybrids between RR and CR. In the next generation, about 3,532 plants would produce exclusively rice grains with red color. The SSR markers were able to identify the gene flow between RR and CR; therefore, they can be useful to increase the precision of cross pollination rate estimates in rice, mainly if used with other methodologies (e.g., herbicide tolerant plants.

    KEY WORDS: Cross pollination; microsatellite markers; Oryza sativa.

    Este trabalho objetivou avaliar a capacidade de marcadores SSR em detectar a ocorrência de fluxo gênico entre o arroz vermelho (AV e o arroz cultivado (AC. Marcadores SSR são utilizados em análise genômica de plantas devido ao alto conteúdo informativo, serem co-dominantes e baseados na reação de PCR. O ensaio de campo foi realizado em dez círculos concêntricos de 5 m a 50 m de distância, a partir de uma planta AV central, que foi a fonte

  13. Absorção de nutrientes pelo tomateiro cultivado sob condições de campo e de ambiente protegido Nutrient absorption by tomato plants grown under field and protected conditions

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    Jamil Abdalla Fayad

    2002-03-01

    Full Text Available Foram realizados dois experimentos, na Universidade Federal de Viçosa, objetivando caracterizar a absorção de nutrientes pelo tomateiro cultivado sob condições de campo e de ambiente protegido. O primeiro, com a cultivar Santa Clara, cultivada a campo, no sistema de cerca cruzada e sete cachos. O segundo, em estufa plástica, com o híbrido EF-50, conduzidas verticalmente, mantendo-se oito cachos em cada uma. Ambos experimentos foram delineados em blocos ao acaso, com quatro repetições. O primeiro constituído por oito e o segundo por nove tratamentos. Em ambos experimentos, o padrão de absorção de nutrientes seguiu o acúmulo de matéria seca pelas plantas. No experimento de campo, a ordem decrescente de acúmulo de nutrientes na parte aérea foi: K, N, Ca, S, P, Mg, Cu, Mn, Fe e Zn, alcançando os valores máximos de 360; 206; 202; 49; 32; 29 kg.ha-1; 3.415; 2.173; 1.967 e 500 g.ha-1, respectivamente. Em ambiente protegido, o acúmulo de nutrientes na parte aérea do tomateiro decresceu na seguinte ordem: K, N, Ca, S, Mg, P, Mn, Fe; Cu e Zn, alcançando os valores de 264; 211; 195; 49; 40; 30 kg.ha-1; 3.200; 2.100; 1.600 e 700 g.ha-1, respectivamente. As taxas de absorção diária dos nutrientes são apresentadas bem como as porcentagens de absorção do N e de K em determinados períodos do crescimento do tomateiro, visando auxiliar na programação das épocas de aplicação destes nutrientes em cobertura.Two experiments were conducted at Universidade Federal de Viçosa to evaluate nutrient absortion by tomato plants grown under field and protected conditions. In the first experiment, tomato cv. Santa Clara was grown in the field with seven clusters/plant. In the second one tomato hybrid EF-50 was grown in plastic greenhouse and pruned to eight clusters. Both experiments were designed as randomized blocks, with four replicates. The first and second experiments were performed with eight and nine treatments, respectively. In both

  14. Crescimento e absorção de nutrientes pelo Aster ericoides cultivado em solo sob estufa Growth and nutrients absorption by Aster ericoides cultivated in soil at greenhouse conditions

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    Mônica S. de Camargo

    2005-06-01

    Full Text Available O Aster ericoides é flor de corte recente no Brasil com grande potencial de produção e aceitação pelo mercado consumidor, mas são escassas as informações sobre sua nutrição e adubação. O objetivo foi avaliar o crescimento, produção de matéria seca e a absorção de nutrientes pelo Aster ericodes (cv. White Master cultivado em estufa comercial. Plântulas dessa espécie foram transplantadas para canteiros após 30 dias da semeadura, em outubro de 1999. As avaliações do material vegetal foram feitas aos 15; 30; 45; 60; 75; 90 e 96 dias após o transplantio. O crescimento inicial foi lento, mas aos 60 dias as plantas já haviam atingido 69% do crescimento em altura e, respectivamente, 27 e 50% do peso final da matéria seca da parte aérea e das raízes. O aparecimento dos botões florais ocorreu no período de 75 a 90 dias. No final do ciclo, as plantas atingiram 137 cm e 24,21 g de matéria seca. A absorção de macronutrientes (kg ha-1 pela parte aérea aos 96 dias foi de: 316,32 de K > 230,52 de N > 35,30 de P > 18,54 de S > 16,14 de Mg > 8,58 de Ca e de micronutrientes (g ha-1 3464,89 de Mn > 1603,23 de Fe > 1104,12 de Zn > 308,40 de B > 61,02 de Cu.Aster ericoides is a cut flower crop with great market and production potential that was only recently introduced into Brazil. Thus, little information is available regarding fertilization and nutrition under tropical conditions. The growth, dry matter production and nutrient absorption of Aster ericoides (cv. White Master cultivated in an UDOX soil under greenhouse conditions was evaluated. Seedlings were transplanted 30 days after sowing date, in October 99. Plant samples were taken at 15; 30; 45; 60; 75; 90 and 96 days after transplanting. Plant growth and dry matter production were slow in the beginning but at 60 days (before flowering 69% of the height, 27% of the top and 50% of the roots dry matter was reached. Plants reached 137 cm in height and 24.21 g of dry weight at the

  15. La nutrición potásica afecta el crecimiento y fotosíntesis en Lilium cultivado en turba ácida The potassium nutrition affects the growth and photosynthesis of Lilium cultivated in acidic peat

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    Enoc Barrera-Aguilar

    Full Text Available Lilium (Lilium sp. es una de las especies ornamentales de mayor valor y se le cultiva para producir flores de corte o plantas en maceta. La incorporación de la floricultura a la tecnología de cultivos sin suelo demanda precisar los niveles óptimos de nutrición de cada uno de los elementos requeridos. En el presente estudio se evaluó el efecto de la concentración de K en la solución nutritiva para definir la concentración que permita una producción de flores de Lilium cultivado en turba ácida. Las soluciones en estudio consistieron en cuatro concentraciones de K: 0, 5, 10 y 20 mM. La mayoría de las variables respuesta evaluadas permitió definir una concentración óptima de K entre los 5 y 10 mM, intervalo que sería el equivalente a los niveles de suficiencia nutrimental. Lo anterior fue observado en parámetros como el diámetro de la flor, altura de planta y peso seco total de planta. En contraste, niveles excesivos (20 mM o de deficiencia (0 mM de K causaron una reducción en la altura y en el peso seco total. El aumento de la concentración de K en la solución nutritiva estuvo relacionado con un incremento en la concentración de K en todos los órganos, pero principalmente en la raíz. La mayor fotosíntesis neta registrada en las hojas jóvenes se presentó con el suplemento de 0 ó 20 mM de K, lo cual puede deberse a una regulación del proceso por falta de carbohidratos como sugiere la menor biomasa acumulada.Lilium (Lilium sp. is one ofthe ornamental species with the highest value and is cultivated to produce fresh cut flowers or potted plants. The incorporation of floriculture to crop technology of crops without soil requires the determination of optimum levels ofnutrition for each ofthe required elements. In the present study, the effect of the K concentration in the nutritive solution was evaluated in order to define the concentration that permits the production of Lilium flowers to be cultivated in acidic peat. The

  16. Efeito da adubação orgânica sobre as frações de carbono de solos cultivados com alfacen americana Organic fertilizer effects upon carbon fractions from soils cultivated with iceberg lettuce

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    Edilene Carvalho Santos Marchi

    2008-12-01

    Full Text Available Avaliou-se, neste estudo, o efeito da aplicação de adubos orgânicos, minerais e calagem, nas frações húmica, fúlvica e nos teores de carbono orgânico de um Latossolo Vermelho e de um Cambissolo, cultivados com alface (americana. O experimento, realizado no Departamento de Ciência do Solo da Universidade Federal de Lavras, foi constituído de cinco doses de material húmico (0, 20, 40, 100 e 200 L ha-1, três tipos de adubação (composto orgânico, esterco de aves e mineral e calagem (com e sem uso de calcário, em cinco repetições. No Cambissolo, a calagem contribuiu para a diminuição do teor de C orgânico nas áreas adubadas com fertilizante mineral e composto, e aumentou o armazenamento de C no solo adubado com esterco de aves. Em relação à adubação mineral, o uso de adubo orgânico aumentou os teores de C-fração ácido húmico e a relação C-húmico/fúlvico. No Latossolo, independente do tipo de adubação, o uso da calagem propiciou o armazenamento no solo de mais C do que o observado na área sem correção da acidez. Os efeitos da calagem e das fontes de nutrientes variaram em função da fração orgânica analisada ou das relações entre seus teores de carbono.This study evaluated the effects of organic and mineral fertilizers and liming, on humic, fulvic, and organic carbon fractions of an Inceptisol and an Oxisol grown with lettuce. The experiment was carried out at the Soil Science Department of Federal University of Lavras, Minas Gerais state, Brazil. It was performed with 5 levels of soil conditioner (0, 20, 40, 100, 200 L ha-1, 3 fertilizers (organic compost, chicken manure and mineral, and liming (present or absent using five replications. In the Inceptisol essay, the liming contributed to a decrease in the organic-C content in the mineral and compost fertilized plots, and increased C-accumulation in the treatments under chicken manure. The organic fertilizer increased the content of C-humic acid and the

  17. Growth and nutrient absorption by Raisa tomato cultivar grown in hydroponic system/ Crescimento e marcha de absorção de nutrientes em tomateiro cultivar Raísa cultivado em sistema hidropônico

    Directory of Open Access Journals (Sweden)

    Arthur Bernardes Cecílio Filho

    2011-03-01

    Full Text Available The production and quality of tomatoes has increased with the emergence of new genotypes and cropping systems such as hydroponics, however, there are few studies on the nutrition of plants. The objective was to evaluate the growth and motion of absorption of nutrients by Raisa tomato cultivar, grown in hydroponic system. The experimental design was randomized blocks with eight treatments consisting of the times of sampling: 15, 25, 35, 45, 55, 65, 75 and 85 days after transplanting (DAT and five replications. The tomato seedlings were transplanted to pots of 8 dm3 (on 31-03-2008, filled with the base substrate of coconut fiber, constantly irrigated with Hoagland and Arnon nutrient solution. During the experimental period and focuses on the development of plants and dry leaves, stems, fruits and roots. The dry matter accumulation of leaves and roots of tomato cultivar Raisa was relatively faster than the national stem and fruit, over cultivation, with predominance of dry fruits (45% on the leaves (27%, the stem (24% and roots (3% at the end of the cycle. The accumulation of nutrients and micronutrients by the tomato cultivar Raisa was fit with linear increase throughout the cultivation, except for Mn which was quadratic. Most of the tomato nutritional requirement for nutrients was K, N and Ca and micronutrients was Fe, Zn and Mn.A produção e a qualidade do tomate têm aumentado com o surgimento de novos genótipos e sistemas de cultivo como o hidropônico, entretanto, são poucas as pesquisas sobre a nutrição das plantas. Assim, a presente pesquisa teve o objetivo de avaliar o crescimento e a marcha de absorção de nutrientes pelo tomateiro cultivar Raísa, cultivado em sistema hidropônico. O delineamento experimental adotado foi em blocos casualizados com oito tratamentos constituídos pelas épocas de amostragem: 15; 25; 35; 45; 55; 65; 75 e 85 dias após o transplante (DAT e cinco repetições. As mudas de tomateiro foram transplantas

  18. Structural quality of soils cultivated with coffee and pasture in an environmental protection area Qualidade estrutural de solos cultivados com café e pastagem em área de proteção ambiental

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    Vico Mendes Pereira Lima

    2010-06-01

    Full Text Available Studies of soils in Environmental Protection Areas (EPAs are of great importance, because they are an essential component of ecosystems, directly interfering in environmental sustainability. The objective of this study was to evaluate the structural quality of soil cultivated with coffee and used as pasture in the Capituva's River microbasin, which is located in the Environmental Protection Area in Coqueiral, south of the state of Minas Gerais. Uniaxial compression test (preconsolidation test and soil resistance to penetration were used. Undisturbed samples were taken from the surface layer (0-5 cm of the soils in the area: a typic dystrophic Red Latosol (LVd - Oxisol, a typic eutrophic Red Argisol (PVe - Ultisol, and a typic dystrophic Haplic Cambisol (CXbd - Inceptisol. A significant linear positive correlation was observed between the results of the preconsolidation test and soil resistance to penetration. Load bearing capacity of soil could be estimated accordingly by means of penetration resistance for LVd, PVe, and CXbd. Cambisol - CXbd showed lower loading support capacity and resistance to penetration than LVd and PVe, due to the better crop management in this soil that resulted in higher physical quality which accounts for higher production and environmental sustainability.O estudo do solo em áreas de proteção ambiental (APAs é de grande importância, pelo fato deste ser componente essencial dos ecossistemas, interferindo diretamente na sustentabilidade do ambiente. Objetivou-se, com este trabalho, avaliar a qualidade estrutural de solos cultivados com café e pastagem na microbacia do Ribeirão Capituvas, inserido na APA Coqueiral, tendo por base uma caracterização pedológica e utilizando-se os ensaios de compressão uniaxial e resistência do solo à penetração. Coletaram-se amostras indeformadas na camada superficial (0-5 cm do Latossolo Vermelho distrófico típico (LVd, do Argissolo Vermelho eutrófico típico (PVe e do

  19. Evolução e variabilidade espacial da salinidade em Neossolo Flúvico cultivado com cenoura sob irrigação Evolution and spatial variability of salinity in a Fluvic Neossol cropped with irrigated carrot

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    Edivan R. de Souza

    2008-12-01

    Full Text Available Desenvolveu-se um experimento de campo com o intuito de verificar o efeito da irrigação por microaspersão, utilizando-se água de condutividade elétrica média de 1,42 dS m-1, sob as propriedades químicas de um Neossolo Flúvico cultivado com cenoura cv. Brasília. A área foi dividida em dois setores (S1 e S2, com 900 m² cada um (30 x 30 m e texturas contrastantes; no S2 adicionou-se cobertura morta aos 23 dias após a semeadura (DAS e se adotou uma fração de lixiviação de 0,20 para os dois setores. Realizaram-se duas amostragens de solo, antes da semeadura e a 96 DAS, nas camadas de 0-20 e 20-40 cm, em 49 pontos no S1 e 52 pontos no S2, segundo uma malha de 5 x 5 m. No extrato da pasta saturada foram medidos o pH e a condutividade elétrica (CEes, e determinadas as bases solúveis; determinou-se, ainda, as bases trocáveis, calculando-se a relação de adsorção de sódio e a percentagem de sódio trocável. Os dados foram analisados por estatística descritiva e geoestatística. Considerando-se a camada de 0-40 cm, a área salina no S1, inicialmente de 7,98%, aumentou para 15,09% ao final do ciclo cultural. Para o S2, a área salina passou de 5,97 para 5,52%; verificou-se, assim, a influência decisiva da textura e da cobertura morta no controle da salinidade do solo.A field experiment was carried out aiming to verify the effect of micro sprinkler irrigation, using water with an average electrical conductivity of 1.42 dS m-1, on the chemical properties of a Fluvic Neossol cropped with carrot, variety Brasília. The area was divided into two sectors (S1 and S2, each one with 900 m² (30 x 30 m and contrasting textures; at S2 mulch was added at day 23 after sowing (DAS. A leaching fraction of 0.20 was adopted for both sectors. Two soil sampling schemes were carried out, before sowing and at 96 DAS, in the 0-20 and 20-40 cm layers, at 49 points in S1 and 52 points in S2, according to a regular 5 x 5 m mesh. In the extract of saturated

  20. Produção e qualidade de frutos de tomateiro cultivado em substrato com zeólita Yield and fruit quality of tomato grown in substrate with zeolite

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    Alberto C. de Campos Bernardi

    2007-06-01

    Full Text Available Avaliou-se a produção e a qualidade dos frutos de tomateiro cv. Finestra, cultivado em substrato com zeólita enriquecida com N, P e K. Os tratamentos utilizados foram quatro doses (20; 40; 80 e 160 g por vaso de zeólitas enriquecidas com H3PO4/apatita, KNO3 e KH2PO4, além de uma testemunha cultivada em solução nutritiva. Foram avaliados a produção de frutos por vaso, firmeza, sólidos totais, pH, acidez titulável e ácido ascórbico dos frutos, dos 80 aos 90 dias de cultivo. O fornecimento de nutrientes através do mineral zeólita enriquecido com N, P e K comprovou ser uma alternativa para o aumento da produção. As maiores produções foram obtidas nos tratamentos com adição de P e K e nas maiores doses de zeólita (160 e 80 g por vaso. A produção de frutos foi 11 a 17% maior em relação à testemunha cultivada com solução nutritiva. Houve efeitos positivos das zeólitas enriquecidas com fontes de fósforo sobre a firmeza e efeito negativo sobre o pH. A firmeza dos frutos variou 104% entre tratamentos, de 7,06 N (ZNK 160 a 14,38 (ZPK 40. O aumento da disponibilidade de potássio contribuiu para o aumento do teor de ácido ascórbico dos frutos.We evaluated yield and quality of tomato fruits, cv. Finestra, grown in a zeolite substrate enriched with N, P and K. Treatments comprised four levels (20; 40; 80 and 160 g per pot of zeolite enriched with H3PO4/apatite, KNO3 and KH2PO4, and a control grown in a nutrient solution. Fruit production, firmness, total soluble solids, pH, titratable acidity and ascorbic acid were evaluated from 80 to 90 days of plant cultivation. Nutrients supplied through the mineral zeolite enriched with N, P and K was an adequate alternative to increase the production. Higher fruit production was obtained with addition of P and K and higher zeolite dosis (160 and 80 g per pot. Fruit production was 11% and 17% higher when compared to the plants grown in nutritive solution (check treatment. Positive effects

  1. QUALIDADE BACTERIOLÓGICA DE CAMARÕES GIGANTES DA MALÁSIA (Macrobrachium rosembergii CULTIVADOS COM DEJETOS DE AVES BACTERIOLOGICAL QUALITY OF MALASIAN GIANT SHRIMPS (Macrobrachium rosembergii RAISED WITH CHICKEN MANURE

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    Patrícia Lorena da Silva Neves Guimarães

    2007-09-01

    Full Text Available

    No presente experimento verificou-se a qualidade bacteriológica de camarões gigantes da Malásia (Macrobrachium rosembergii cultivados em cativeiro, em consórcio com dejetos de avicultura, na Estação de Piscicultura da Escola de Veterinária da Universidade Federal de Goiás, obtendo-se os seguintes resultados: pesquisa de Salmonella ausência em 25g em todas as amostras; contagem de Staphylococcus aureus - variou de < 1,0 x 10¹ a 2,0 x 10¹ UFC/g contagem de microrganismos aeróbios ou facultativos mesófilos viáveis - < 1,0 x 10¹ a 1,0 x l0³ UFC/g ; psicrotróficos - < 1,0 x 10¹ a 1,0 x 10³ UFC/g; NMP de Coliformes totais - 3 a 15/g; NMP de Coliformes fecais - 3 a 7/g. Os valores acima estão em acordo com o padrão nacional.

    PALAVRAS-CHAVE: Camarão, Macrobrachium rosembergii; dejetos de aves.

    The bacteriological quality of Malaysian giant shrimps (Macrobrachium rosnnbergii raised under captivity condition and fed with aviculture residue was studied in the Station of Pisciculture of the Veterinary School, Federal University of Goiás. The following results were observed: research of Salmonella free in 25g, in all samples; Staphylococcus aureus counts ranged from < 1,0 x 10¹ to 2,0 x 10¹ CFU/g; aerobic or aerobic facultative mesophiles counts ranged from < 1,0 x 10¹ to 1,0³ CFU/g; psicrotrophiles count was < 1,0 x

  2. INFLUENCIA DE LA FERTILIZACIÓN NITROGENADA SOBRE LA MICROFLORA EDÁFICA Y ALGUNOS INDICADORES DEL CRECIMIENTO Y EL RENDIMIENTO DE Coffea canephora Pierre CULTIVADO EN SUELO PARDO ÓCRICO SIN CARBONATOS

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    A. Pérez

    2005-01-01

    Full Text Available Se estudió el efecto de la fertilización nitrogenada sobre la actividad microbiana y algunos indicadores del crecimiento y la producción de Coffea canephora Pierre, cultivado a 3x1.5 m, en un suelo Pardo ócrico sin carbonatos durante 1996- 2000. En un diseño de bloque al azar con cuatro réplicas se evaluaron cinco sistemas de fertilización nitrogenada: N0 (testigo, N1 (30, 45 y 50 kg.ha-1.año-1, N2 (60, 90 y 100 kg.ha-1.año-1, N3 (90, 135 y 150 kg.ha-1.año-1 y N4 (120,180 y 200 kg.ha-1.año-1. Se aplicaron anualmente 40 kg de P2O5 y 50, 100 y 160 kg de K2O.ha-1 para el primer, segundo y tercer años, respectivamente. La zona rizosférica de las plantas consideradas como de cálculo de los sistemas de mayor aplicación de nitrógeno (N3 y N4, al igual que el testigo (N0, se analizaron en cuanto al comportamiento de las bacterias, los hongos, actinomicetos, la respiración basal (Rb, respiración inducida con carbono (RIC y la respiración inducida con carbono + nitrógeno (RICN. En marzo de 1997 y mayo de 1999, se evaluaron la altura (cm y el diámetro de la copa (cm. En el período de 1999-2000, se cosechó el experimento y los resultados se expresaron en toneladas de café oro.ha-1. La respuesta al nitrógeno dependió de la edad de la plantación: para el primer año la dosis de 90 kg de N.ha-1 garantizó un adecuado crecimiento, a partir de este momento se incrementaron los requerimientos de N hasta 135 kg de N.ha-1. En el primer año de cosecha los requerimientos de N aumentaron y fue necesaria la aplicación de 150 kg de N.ha-1 para alcanzar una producción de 1.17 ton de café oro.ha-1. El sistema de fertilización propuesto (N3 no provocó disminución en las poblaciones microbianas ni en sus actividades en el suelo.

  3. Ajuste osmótico em milho cultivado em diferentes sistemas de manejo de solo e disponibilidade hídrica Osmotic adjustment in maize cultivated in different soil tillage systems and water availability

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    Cleusa Adriane Menegassi Bianchi

    2005-07-01

    Full Text Available A cultura do milho é sensível ao déficit hídrico, e esta é uma causa freqüente de redução na produção de grãos. O objetivo deste trabalho foi verificar a ocorrência de ajuste osmótico em milho, cultivado em dois sistemas de manejo do solo, com diferentes disponibilidades hídricas. Os tratamentos consistiram do cultivo do milho em semeadura direta (SD e convencional (SC, com irrigação de forma a manter a umidade do solo próxima à capacidade de campo, e sem irrigação. O ajuste osmótico foi obtido pela diferença do potencial osmótico hidratado entre as plantas irrigadas e sem irrigação. Os maiores valores de potencial mínimo de água na folha ocorreram em plantas cultivadas sob SD, em razão do maior potencial matricial da água no solo nesse sistema. O potencial de pressão e o osmótico hidratado diminuíram em conseqüência do déficit hídrico, o que determinou a ocorrência de ajuste osmótico em ambos os sistemas, que foi mais intenso em manejo convencional. Portanto, o potencial mínimo de água na folha demonstra ser um indicador adequado da condição hídrica das plantas de milho. A cultura apresenta tolerância ao déficit hídrico por meio do mecanismo de ajuste osmótico.Maize is a very sensible crop to water deficit, which is a frequent cause of reduction in its grain yield. The objective of this work was to verify the occurrence of osmotic adjustment in maize cultivated in different soil management systems and water availability. The maize was cropped in no-tillage (NT and conventional tillage (CT, with irrigation and no-irrigation. For measurements of minimum leaf water potential, a pressure chamber was utilized. Osmotic adjustment was calculated as the difference between osmotic potentials at full turgor, in irrigated and non-irrigated plants. Highest values of minimum leaf water potential were found in plants cropped in NT, as a response to the highest soil potential on this cropping system. Pressure

  4. Bradyrhizobium inoculation and nitrogen fertilization on cowpea grown in different soils = Inoculação com Bradyrhizobium e adubação nitrogenada em feijão-caupi cultivado em diferentes solos

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    Kelter Carvalho dos Santos

    2014-12-01

    Full Text Available Biological nitrogen fixation (BNF can be limited by the high availability of nitrogen (N. The soil clay fraction and organic matter content control the availability of N, and it is possible that these attributes affect the symbiotic fixation in soils fertilized with N. Based in that assumption, the objective with this study was to evaluate the effect of N fertilization on biological fixation in cowpea grown in five soils, with wide variation in their physical, chemical and and mineralogical attributes, representative of the growing areas of savannah of Roraima. The experiment was carried out in polyethylene pots in randomized blocks design with factorial arrangement 5x5, 5 soils (LAdx; LVd; PAdx; PVAd; RYve, 4 doses of nitrogen (0, 20,40, 80 kg ha-1 in inoculated plants and a control (without inoculation and nitrogen fertilization, with 4 replications. The seeds of BRS Guariba were inoculated with Bradyrhizobium strain BR 3262. The variables studied were: number, size and mass of the pod, root dry mass, nodule number and dry weight of nodules. The BNF provided an increase in the variables studied in all soils. N levels in inoculated plants provided significant increases varying between soil classes, 3–18% for yield components and 8-70% for the other variables. Nitrogen fertilization affects nodulation in cowpea, being restrictive in some soils. = A fixação biológica do nitrogênio (FBN pode ser limitada pela alta disponibilidade de nitrogênio (N. A fração argila e o teor de matéria orgânica do solo controlam a disponibilidade do N, sendo possível que esses atributos venham a interferir na fixação simbiótica em solos adubados com N. Com base nesse pressuposto, objetivou-se com o presente trabalho avaliar o efeito da adubação nitrogenada na fixação biológica do N em feijão-caupi cultivado em cinco solos, com ampla variação nos seus atributos físicos, químicos e mineralógicos, representativos das áreas de cultivo da Savana

  5. Balanço de energia em um solo cultivado com feijão caupi no brejo paraibano Energy balance in a soil cultivated with cowpeas in a mountaineous area in Paraiba, Brazil

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    José R. de S. Lima

    2005-12-01

    Full Text Available Os componentes do balanço de energia num solo cultivado com feijão caupi nas condições do Brejo Paraibano, foram determinados numa área de 4 ha do Centro de Ciências Agrárias, da UFPB, localizada no município de Areia, PB (6o 58' S, 35o 41' W e 620 m. Para tal, instalou-se uma torre no centro da área, contendo um pluviógrafo, um piranômetro, um saldo radiômetro e sensores para medida da temperatura e da umidade relativa do ar, em dois níveis acima do dossel da cultura; além disso, dois locais no solo foram instrumentados, cada um com duas sondas térmicas instaladas horizontalmente, nas profundidades de z1 = 2,0 cm e z2 = 8,0 cm, além de uma placa destinada à medida do fluxo de calor no solo, a 5,0 cm. Essas medidas foram armazenadas a cada 30 min, num sistema de aquisição de dados. Verificou-se que o valor médio do saldo de radiação (Rn foi de 78%, sendo a Rn utilizada, em média, como 71% no fluxo de calor latente (LE, 19% como fluxo de calor sensível (H e 10% como fluxo de calor no solo (G. A fração do saldo de radiação utilizada como fluxo de calor latente aumentou com a evolução da cobertura do solo pela cultura, enquanto a fração utilizada como fluxo de calor sensível e de calor no solo, diminuiu.The energy balance components in a cowpea crop growing in the mountain region of Paraiba, Brazil ("Brejo Paraibano" was determined in a 4 ha area in the Centro de Ciências Agrárias, UFPB, in the municipality of Areia, PB (6o 58' S, 35o 41' W e 620 m. Measurements of rainfall, net and global radiation were made. Sensors at two levels above the canopy were also mounted, allowing the measurements of air temperature and relative humidity. Below the soil surface, two different sites were provided with two thermal probes, horizontally installed at depths of 2.0 and 8.0 cm, besides a heat flux plate 5.0 cm deep for soil heat flux measurements. All data were stored in a datalogger each 30 min. The average value of the net

  6. Atividade microbiana em solo cultivado com cana-de-açúcar após aplicação de herbicidas Microbial activity in soil cultivated with sugarcane after herbicide application

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    M.R. Reis

    2008-06-01

    Full Text Available Objetivou-se neste trabalho avaliar os efeitos dos herbicidas na atividade respiratória da microbiota, na biomassa microbiana e no quociente metabólico em solo cultivado com plantas de cana-de-açúcar. Utilizou-se o delineamento inteiramente casualizado, no esquema de parcelas subdivididas, com quatro repetições. Nas parcelas, avaliou-se o efeito dos herbicidas e, nas subparcelas, o efeito do tempo após a aplicação destes. Os herbicidas utilizados foram: 2,4-D (1,30 kg ha-1, ametryn (1,00 kg ha-1, trifloxysulfuron-sodium (0,0225 kg ha-1 e a mistura ametryn+trifloxysulfuron-sodium (1,463+0,0375 kg ha-1, respectivamente. Realizou-se a aspersão dos herbicidas aos 60 dias após a brotação das gemas do material propagativo. Aos 15, 30, 45 e 60 dias após a aplicação dos herbicidas, amostras de solos rizosférico e não-rizosférico foram coletadas e analisadas quanto às seguintes características: taxa respiratória (TR, carbono da biomassa microbiana (CBM, quociente metabólico (qCO2 e acúmulo total de C-CO2 evoluído do solo (ATC. O ametryn aplicado isolado ou em mistura com trifloxysulfuron-sodium propiciou maiores TRs, ao passo que o 2,4-D apresentou pouca influência nessa variável. Maiores acúmulos de C-CO2 aos 60 dias após a aplicação dos herbicidas foram verificados nos tratamentos com trifloxysulfuron-sodium, ametryn e na mistura de ambos os produtos. A BM do solo foi reduzida na presença do ametryn isolado ou em mistura. Esses tratamentos resultaram em maiores valores de qCO2 aos 45 e 60 dias da aplicação.The objective of this work was to evaluate the impact of the herbicides ametryn and trifloxysulfuron-sodium, singly or combined, and 2,4-D, on respiratory rate, microbial biomass, and metabolic quotient on sugar cane-cultivated soil. A completely randomized design was adopted in a split-plot scheme with four replications. The effect of the herbicides was evaluated in the plots and the effect of time after herbicide

  7. Propriedades redox de ácidos húmicos isolados de um solo cultivado com cana-de-açúcar por longo tempo Redox properties of humic acids isolated from a soil Under long-term sugarcane cultivation

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    Marihus Altoé Baldotto

    2008-06-01

    Full Text Available A matéria orgânica do solo é o maior reservatório de C nos sistemas naturais. Em tais sistemas a qualidade e a estabilidade do C podem ser estimadas pelo aumento da concentração das frações humificadas que, dentre outros fatores, está condicionada ao balanço entre as perdas e os ganhos que envolvem as reações de oxidação e de redução da matéria orgânica do solo. O objetivo deste estudo foi avaliar a eletroquímica, usando titulações redox iodimétricas, de ácidos húmicos isolados de solos cultivados continuamente com cana-de-açúcar submetida ou não à queima da palha para a colheita ou à adição anual de vinhaça. Os ácidos húmicos apresentaram valores do potencial formal padrão do eletrodo entre 0,760 e 0,779 V a 25 ºC. A capacidade de oxidação dos ácidos húmicos variou de 1,01 a 3,44 mol c kg-1 a pH 5,0 e de 1,64 a 6,44 molc kg-1 a pH 7,0. Observou-se correlação positiva e significativa entre a capacidade de oxidação dos ácidos húmicos e suas concentrações de grupos funcionais fenólicos, quinonas e semiquinonas.Soil organic matter is the largest carbon reservoir in natural systems. In such systems the carbon quality and stability can be estimated based on the increase of humified fractions which, among other factors, is related to the balance between losses and accumulations involving oxidation and reduction reactions of the soil organic matter. The objective of this study was to evaluate the electrochemistry of humic acids isolated from soils cultivated continually with sugar-cane, with or without pre-harvest burning and annual vinasse application using iodimetric redox titrations. The formal electrode potentials of the humic acids had a similar pattern, with values between 0.760 and 0.779 V, at 25 ºC. The oxidation capacity of humic acids varied from 1.01 to 3.44 mol c kg-1 at pH 5.0 and from 1.64 to 6.44 mol c kg-1 at pH 7.0. Positive and significant correlations were observed between the

  8. Concentração salina e fases de exposição à salinidade do meloeiro cultivado em substrato de fibra de coco Salt concentration and phases of exposure tosalinity of melon grown in coconut fiber substrate

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    Nildo da Silva Dias

    2011-09-01

    Full Text Available No semiárido, a escassez de água de boa qualidade faz com que os produtores utilizem água salobra para preparar a solução nutritiva. Com o objetivo de investigar a utilização de água salobra na irrigação de meloeiro (Cucumis melo L., cv. AF 015 cultivado em substrato de fibra de coco em casa de vegetação, plantas foram nutridas com soluções salinas de condutividades elétricas (CEs 1,1 (testemunha; 2,5; 4,0 e 5,5 dS m-1 aplicadas durante as fases: crescimento vegetativo (10-30 dias após o transplantio-DAT; florescimento (31-50 DAT e frutificação e maturação (51-70 DAT. O delineamento experimental foi o inteiramente casualizado, com 12 tratamentos arranjados em um esquema fatorial 4x3 (níveis de salinidade x tempo de exposição dos sais, com três repetições. Houve correlação na perda relativa por incremento de CEs das variáveis de crescimento e de produção do meloeiro em função da salinidade da solução nutritiva para cada fase de exposição. As soluções nutritivas preparadas com água salobra podem ser utilizadas no cultivo do meloeiro em substrato de fibra de coco com o mínimo de perdas relativas de massa média de frutos por incremento de CEs, quando aplicadas na fase de florescimento.Scarcity of good water quality in semiarid region causes producers to use brackish water to prepare the nutrient solution. In order to investigate the use of brackish water in irrigation of greenhouse-melon (Cucumis melo L., cv. AF 015 grown in coconut fiber substrate, plants were irrigated with saltine nutrient solutions of electrical conductivities (ECs of 1.1 (control, 2.5, 4.0 and 5.5 dS m-1, applied during the phases of vegetative growth (10-30 days after transplanting, DAT, flowering (31-50 DAT and fruiting and ripening (51-70 DAT. The design was completely randomized, with 12 treatments arranged in a 4x3 factorial design (salinity levels x exposure time of the salts, with three replications. There was a correlation in

  9. Carbono da biomassa microbiana em solo cultivado com soja sob diferentes sistemas de manejo nos Cerrados Microbial biomass carbon in soil cultivated with soybean, under different management systems in Cerrado

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    Kátia Sueli Sivek Perez

    2004-06-01

    Full Text Available O objetivo deste trabalho foi quantificar o carbono da biomassa microbina de solo, cultivado com soja em diferentes sistemas de manejo. Os sistemas de manejo foram semeadura direta, uma gradagem, subsolagem e duas gradagens, realizadas num Latossolo Vermelho-Amarelo argiloso. As amostras de solo foram coletadas em cinco profundidades (0-5, 5-10, 10-20, 20-30 e 30-40 cm e em quatro épocas (antes do preparo do solo, 30 dias após a germinação, floração e após a colheita da soja. Foram coletadas, também, amostras de solo na mesma profundidade e na mesma época, em uma área de vegetação nativa (Cerrado sensu strictu, adjacente ao experimento. A subsolagem apresentou os maiores valores de carbono aos 30 dias após a germinação (865,7 mg kg-1 de solo. Este valor foi reduzido para 80,3 mg kg-1 de solo na floração. Os valores de carbono na semeadura direta mantiveram-se mais estáveis, principalmente na camada de 0-20 cm. As camadas de 0-5 e 5-10 cm apresentaram diferença na maioria das épocas estudadas e das demais camadas. A subsolagem mostrou o menor valor do carbono orgânico do solo, após a colheita da soja. Não houve correlação entre a relação carbono da biomassa microbiana/carbono orgânico e os nutrientes do solo na subsolagemThe aim of this study was to quantify soil microbial biomass carbon in a soybean crop under different soil management systems no-tillage, single harrowing, subsoiling and two harrowing, on a clay Red-Yellow Latossol in the Cerrado region. Soils were studied at five depths 0-5, 5-10, 10-20, 20-30 and 30-40 cm. Four periods were observed before soil preparation; 30 days after germination; flowering stage and after harvesting soybean plants. The same measurements were taken under the same conditions in an area of native cerrado vegetation, adjacent to the experiment (Cerrado sensu strictu. Subsoiling showed highest carbon values 30 days after germination (865.7 mg kg-1 of soil. This was reduced to less

  10. Crescimento e produtividade do inhame cultivado entre faixas de guandu em sistema orgânico Growth and productivity of the taro intercropped with pigeon pea hedgerows in organic system

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    Fábio Luiz de Oliveira

    2006-03-01

    Full Text Available Foi conduzido um experimento no município de Bom Jardim, Região Serrana do estado do Rio de Janeiro, visando a avaliar o crescimento e produtividade do inhame cultivado entre faixas de guandu, no sistema orgânico de produção. O delineamento experimental utilizado foi de blocos ao acaso, com quatro repetições e três tratamentos, que consistiram em cultivo entre faixas sem realização de poda; cultivo entre faixas com poda, com a biomassa mantida em cobertura do solo; e cultivo entre faixas com poda, com a biomassa removida da área. O sistema de cultivo entre faixas de guandu não podadas revelou-se promissor por promover proteção das plantas de inhame contra queimaduras foliares pela radiação solar, mantendo a mesma produtividade do sistema com faixas podadas. Além disso, revelou-se um método eficaz e de baixo custo para controle alternativo de plantas invasoras, prescindindo-se das capinas que oneram a produção orgânica do inhame, na qual o emprego de herbicidas não é admitido. A poda da faixa de guandu contribui para a melhoria da fertilidade do solo, pelo aporte de 6,58 t ha-1 de biomassa seca e 159 kg ha-1 de N e ainda a ciclagem de 20 kg ha-1 de P, 136 kg ha-1 de K, 64 kg ha-1 de Ca e 16 kg ha-1 de Mg.Growth and productivity of taro intercropped with pigeon pea hedgerows in organic system under different management was tested in Bom Jardim, upland region of Rio de Janeiro State, Brazil. A completely randomized block design was used with four replicates. The treatments consisted of unpruned hedgerows; hedgerows pruned with the biomass maintained on the soil surface; and hedgerows pruned with the biomass removed from the experimental area. The unpruned hedgerows system was shown to be advantageous by protecting taro leaves against sun burning and keeping the same productivity of the hedgerows pruned system. In addition, it represented an effective way to control weeds, reducing manual labor and costs of organic taro

  11. Formas preferenciais de acumulação de fósforo em solos cultivados com cana- de-açúcar na região nordeste

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    M. S. B. Araújo

    1997-12-01

    Full Text Available Neste trabalho, foram quantificadas as principais formas de acumulação do P proveniente do fertilizante, em solos com diferentes propriedades físicas e químicas, cultivados com cana-de-açúcar em Pernambuco. Solos de 11 cultivos comerciais foram amostrados, logo após a colheita da cana-planta (jan. 1994, a qual tinha sido fertilizada no sulco de plantio 18 meses antes. Para obter amostras com P derivado daquela fertilização, cavou-se uma trincheira perpendicular à linha de cana e retiraram-se 28 amostras de solo da região do sulco, usando como guia uma grade metálica de 70 cm de largura por 40 cm de altura e com malha de 10 x 10 cm. A grade foi fixada, a partir da profundidade de 10 cm, e centrada nos resíduos ainda remanescentes dos rebolos do plantio da cana. Todas as amostras foram extraídas com NaOH 0,1 mol L-1. Nos 11 solos, os maiores teores de P corresponderam às amostras da camada de 10-20 cm, da qual foram, então, escolhidas as amostras que apresentaram o menor e o maior valor de P extraível com NaOH 0,1 mol L-1, de cada solo. O fósforo, nessas duas amostras, foi extraído, seqüencialmente, com resina (P-res, NaHCO3 (P-bic, inorgânico e orgânico, NaOH (P-hid, inorgânico e orgânico e H2SO4 (P-ac, seguido por uma digestão com H2SO4 / H2 O2 (P-rdu. A maior parte das diferenças entre as amostras com alto e baixo conteúdo de P (DP, atribuídas à fertilização feita dezoito meses antes, foi encontrada nas frações inorgânicas (P-res, Pi-bic, Pi-hid e P-ac. Nos cinco solos que continham granulometria mais fina e alto teor de Fe e Al extraível com ditionito, mais de 50% de DP foi encontrado como Pi-hid. Nos demais, o P ficou semelhantemente distribuído entre P-res + Pi-bic e Pi-hid ou, no caso dos solos mais arenosos, concentrou-se nas formas extraíveis por resina e bicarbonato. A presença de quantidade elevada de P em formas lábeis, P-res e Pi-bic, mesmo após 18 meses de contato solo-fertilizante, indica a

  12. Fertirrigação com água salina e seus efeitos na produção do pepino enxertado cultivado em ambiente protegido Fertigation with saline water and its effects on yield of greenhouse grafted cucumber

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    Flávio F. Blanco

    2002-09-01

    Full Text Available A aplicação de fertilizantes via água de irrigação nos cultivos protegidos, bem como a utilização de água subterrânea com alta concentração salina, tem resultado no aumento da salinidade do solo, ocasionando perdas de produtividade. Este trabalho teve o objetivo de avaliar a produção da cultura do pepino enxertado, cultivado em ambiente protegido, quando irrigado com águas de diferentes condutividades elétricas (S1=1,54; S2=3,10 e S3=5,20 dS.m-1 e duas lâminas de irrigação associadas às suas freqüências de aplicação (L0=1,00.ETc; L1F1=1,25.ETc em todas as irrigações e L1F2=1,25.ETc quando a lâmina de água de irrigação acumulada em L0 atingia 100 mm, sendo ETc a evapotranspiração da cultura. O ensaio foi conduzido em blocos casualizados com três repetições e os fatores foram arranjados no esquema fatorial 3x3. O número de frutos comerciais por planta reduziu linearmente com o aumento da salinidade, enquanto a produção total e comercial, bem como o número total de frutos por planta e a produção de matéria seca de frutos não foram afetados significativamente pela salinidade, embora todas as características tenham apresentado tendência de redução com o aumento da salinidade da água de irrigação. As diferentes lâminas de irrigação não foram suficientes para reduzir os efeitos do estresse salino, independente das suas freqüências de aplicação.Fertiliser application through irrigation water in greenhouse crops, as well as the use of groundwater with high salt concentration, has been the cause of increasing soil salinity, leading to an expressive yield reduction. The yield of grafted cucumber in greenhouse when irrigated with waters of different electrical conductivity was evaluated (S1=1.54; S2=3.10 and S3=5.20 dS.m-1 and two irrigation water depths associated to their application frequencies (L0=1.00.ETc; L1F1=1.25.ETc in all irrigation and L1F2=1.25.ETc when the irrigation water depth of L0

  13. Processamento da carne do pacu (Piaractus mesopotamicus cultivado em tanques-rede no reservatório de Itaipu = Processing of pacu (Piaractus mesopotamicus meat from net cage farming in the Itaipu reservoir

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    Robie Allan Bombardelli

    2007-10-01

    Full Text Available O trabalho objetivou avaliar as características morfométricas, bromatológicas e o rendimento de cortes da carne do pacu (Piaractus mesopotamicus, cultivados em tanquesrede. Utilizaram-se 45 animais, distribuídos em três tratamentos e 15 repetições cada uma.Os tratamentos constituíram-se de animais alimentados com ração extrusada comercial (REC, resíduos de vegetal cozido (RPV e resíduos cozidos de produção pesqueira (RPP. Realizaram-se as medidas individuais dos animais de comprimento-padrão (CP,comprimento total (CT, comprimento da cabeça (CC, altura da cabeça (AC, largura do tronco (LT, comprimento do tronco (CTR, altura do tronco (AT e, a partir delas, avaliaram-se as relações morfométricas de CC/CP, CC/AC, CP/CT, LT/CTR, LT/AT e AT/CTR. Avaliaram-se os rendimentos: carcaça (RCARC, tronco limpo (TL, musculaturadorsal (MD, filé (FL, costelas (COST, nadadeiras (NAD, gordura visceral (GVISC, pele com escamas (PELE, e os teores de umidade (UM, matéria mineral (MM, proteína bruta (PB e extrato etéreo (EE dos diferentes cortes. Observaram-se maiores resultados (pThis work was carried out to evalue the morphometric and chemical characteristics, as well as the meat cut yields from pacu (Piaractusmesopotamicus reared in net cages. Forty-five specimens were used, distributed in three treatments and 15 replications. The treatments consisted of animals fed with commercial extruded ration (CER, vegetal by-products (VBP and fishery by-products (FBP. Individual morphometric characteristics were measures in terms of standard length (SL, total length (TL, head length (HL head height (HH, body width (BW, body lenght (BL, body height (BH, to evaluate the morphometric ratio of HL/SL, HL/HH, SL/TL, BW/BL, BW/BH and BH/BL. Next, the carcass (CARC, clean body (CB, dorsal muscle (DM, fillet (FL, ribs (RIB, fin (FIN, visceral fat (VISCF, skin with scales (SKIN, as well as the levels of moisture (M, ash (ASH, crude protein (CPB and fat (FAT

  14. Mineral and organomineral fertirrigation in relation to quality of greenhouse cultivated melon Fertirrigação mineral e organomineral na qualidade do melão cultivado em estufa

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    André Luís Teixeira Fernandes

    2003-02-01

    Full Text Available Fertirrigation of melon still presents problems in relation to the type of the fertilizer used, mainly the biofertilizers. This experiment, installed in Uberaba, MG, Brazil, in a plastic module greenhouse of 768 m², tested treatments consisting of the conventional mineral fertirrigation and the organic fertirrigation, using two frequencies: daily and weekly. The best yields were obtained with daily fertilizer application, with superiority in relation to biofertilizers, with yield of 45.5 t ha-1 of fruit. This value was higher as compared to chemical products, that lead to a yield of 42.4 t ha-1. The weekly fertigation had lower productivities, and in this case, the biofertilizers also overcame the mineral, on the average 2.0 t ha-1. The best melon soluble solids values were obtained for the daily application of fertilizers, and the best treatment (P A fertilização do melão ainda apresenta incertezas em relação ao tipo de fertilizante utilizado, principalmente quando se utilizam os biofertilizantes. Com o objetivo de monitorar a fertirrigação com fertilizante organomineral comparando-a com a fertirrigação convencional, este experimento avaliou a qualidade final do melão variedade "Orange Flesh", cultivado em estufa plástica. O experimento foi instalado em Uberaba, MG, em condições de ambiente protegido, num módulo de 768 m², onde foram aplicados os seguintes tratamentos: fertirrigação convencional mineral e fertirrigação com biofertilizante, em duas freqüências: semanal e diária. As melhores produtividades foram obtidas com a aplicação diária de fertilizantes, com superioridade para os produtos organominerais, com produção total de 45,5 t ha-1 de frutos, superior às 42,4 t ha-1 obtidas com os produtos químicos. A fertirrigação semanal resultou em produtividades inferiores às decorrentes das aplicações diárias, sendo que os produtos organominerais superaram os químicos nesse tipo de aplicação em 2 t ha-1, em

  15. Harvest season influences on the quality of tomato grown in alternative systems / Influência das épocas de colheita na qualidade de tomate cultivado em sistemas alternativos

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    Regina Marta Evangelista

    2009-03-01

    Full Text Available On tomato production in Brazil, around two/thirties is designated to consume “in nature”. Thus, the skin aspect and its quality became an important factor on buying decision. Tomato presents high mass of water, and its quality depends on temperature and humidity variation. Water loss brings weight and fruit aspect loss, affecting the quality. This work aimed to verify the influence of harvest season on the fruit quality grown in alternative, organic and biodynamic systems. It was evaluated tomato quality characteristics, including mass loss, texture, pH, titratable acidity, soluble solids. The cycle stage of the tomato plant interferes on fruit quality. The third, fourth and fifth harvests were those which showed the highest values to quality parameters, with more fresh mass fruit. The sixth harvest showed fruits with high total soluble solids and sugar contents. On the evaluation of mass loss on the three harvest seasons, it was observed that on the first harvest there was a smaller loss. The period of harvest cycle interferes on the time of storage, and fruitd harvested on the first have more conservation time in relation to the other onesNa produção de tomate no Brasil, aproximadamente dois terços são destinados ao consumo “in natura”. Assim, o aspecto externo e a sua qualidade tornam-se um fator importante na decisão de compra. O tomate apresenta elevado conteúdo de água, estando sujeito às variações de temperatura e umidade relativa do ambiente onde se encontra. A perda de água ocasiona perda de peso e aparência do fruto, afetando a qualidade. O objetivo deste trabalho foi verificar a influência das épocas de colheita na qualidade de frutos de tomateiro cultivados em sistemas alternativos, orgânico e biodinâmico. Foram avaliadas características de qualidade dos frutos de tomate, que incluíram perda de massa, textura, pH, sólidos solúveis, acidez titulável e açúcares redutores. O estádio do ciclo do tomateiro

  16. Pós-colheita de mamão híbrido UENF/CALIMAN 01 cultivado no Rio Grande do Norte Postharvest shelf life of papaya UENF/CALIMAN 01 produced in Rio Grande do Norte

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    Patrícia Lígia Dantas de Morais

    2007-01-01

    Full Text Available No Brasil, foi desenvolvido um novo híbrido de mamão obtido através de melhoramento do cruzamento entre um progenitor do Grupo Formosa e um progenitor do Grupo Solo. Recentemente, os produtores de mamões do Rio Grande do Norte introduziram o cultivo desse híbrido em seus pomares: no entanto, os estudos acerca do potencial de conservação desses frutos restringem-se aos testes realizados nas próprias empresas. O presente trabalho propôs-se a avaliar a vida útil pós-colheita do mamão híbrido UENF/Caliman 01 cultivado no Estado do Rio Grande do Norte. Os frutos foram provenientes de um plantio comercial, localizado no município de Ceará-Mirim-RN. Os mamões foram colhidos no estádio de maturação I (menos de 15% da superfície da casca amarela. No galpão de embalagem, os frutos passaram por lavagem, seleção, tratamentos hidrotérmico, imersão em fungicida e cera. No laboratório da Universidade Federal Rural do Semi-Árido (Mossoró-RN, os frutos foram armazenados à temperatura de 25º C ± 2º C e umidade relativa de 55% ± 5%. Aos 0; 2; 4; 6; 8 e 10 dias de armazenamento, realizaram-se avaliações sobre as seguintes variáveis: aparência externa e interna, coloração da casca, perda de massa, firmeza, sólidos solúveis, acidez titulável, pH e açúcares. Esse híbrido apresenta características fenotípicas do Grupo Formosa, com frutos alongados, massa média de 1,28 kg, polpa com espessura de 2,74 cm, coloração vermelha e conteúdo elevado de sólidos solúveis (13,65% e açúcares (10,53%. As variáveis de qualidade analisadas limitaram a vida útil pós-colheita do híbrido UENF/Caliman 01 em oito dias.A new papaya hybrid was developed in Brazil obtained by breeding with the crossing of progenitors from Solo x Formosa groups. Recently, in the state of Rio Grande do Norte, Brazil, this hybrid was introduced by the farmers in their orchards. However, the studies concerning to the conservation potential of these fruits

  17. Avaliação de farinhas de trigos cultivados no Rio Grande do Sul na produção de biscoitos Evaluation of wheat flour cultivated in the Rio Grande do Sul to production of biscuits

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    Luiz Carlos Gutkoski

    2003-12-01

    Full Text Available Na indústria de biscoitos é fundamental a definição de parâmetros para selecionar o uso do trigo em estudo. Existe uma série de testes químicos, físicos, enzimáticos e funcionais que podem caracterizar a qualidade tecnológica da farinha. Com o presente trabalho objetivou-se estudar diferentes cultivares de trigo cultivados no estado do Rio Grande do Sul para a produção de biscoitos tipo semi-duros através de análises físicas, químicas, reológicas e funcionais. Grãos de trigo de amostras dos cultivares BR 23, BRS 120, BRS 49, BRS 177, BRS 119, BRS 176, PF 940097 e Embrapa 40 foram condicionados para 15% de umidade, moídos em moinho piloto Chopin e analisados. As determinações realizadas foram peso de mil grãos, dureza do grão, peso do hectolitro, moagem experimental, composição química, número de queda e alveografia. Os biscoitos foram elaborados de acordo com método da AACC e avaliado volume específico, diâmetro, espessura, fator de expansão e cor. A metodologia utilizada no laboratório para a elaboração de biscoitos tipo semi-duros é adequada para a avaliação de uso final de farinhas de trigo. Com base nas propriedades funcionais, as farinhas de trigo dos cultivares BR 23, BRS 120 e BRS 176 foram as mais recomendadas para a produção de biscoitos.In the biscuit industry the definition of parameters to select the use of the wheat in study is basic. A series of chemical, physical, enzymatic and functional tests exists which can characterize the technological quality of the flour. The purpose of this research was to study cultivates of wheat cultivated in the state of the Rio Grande do Sul in the production of biscuits through physical, chemical, rheological and functional analysis. Samples of wheat cultivates BR 23, BRS 120, BRS 49, BRS 177, BRS 119, BRS 176, 940097 PF and Embrapa 40 were conditioned for 15% of moisture content and milling in mill pilot Chopin. With the milling samples it was determined the

  18. Phosphorus fractions in sandy soils of vineyards in southern Brazil Frações de fósforo em solos arenosos cultivados com videira na região sul do Brasil

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    Djalma Eugênio Schmitt

    2013-04-01

    Full Text Available Phosphorus (P applications to vineyards can cause P accumulation in the soil and maximize pollution risks. This study was carried out to quantify the accumulation of P fractions in sandy soils of vineyards in southern Brazil. Soil samples (layers 0-5, 6-10 and 11-20 cm were collected from a native grassland area and two vineyards, after 14 years (vineyard 1 and 30 years (vineyard 2 of cultivation, in Santana do Livramento, southern Brazil, and subjected to chemical fractionation of P. Phosphorus application, especially to the 30-year-old vineyard 2, increased the inorganic P content down to a depth of 20 cm, mainly in the labile fractions extracted by anion-exchange resin and NaHCO3, in the moderately labile fraction extracted by 0.1 and 0.5 mol L-1 NaOH, and in the non-labile fraction extracted by 1 mol L-1 HCl, indicating the possibility of water eutrophication. Phosphorus application and grapevine cultivation time increased the P content in the organic fraction extracted by NaHCO3 from the 0-5 cm layer, and especially in the moderately labile fraction extracted by 0.1 mol L-1 NaOH, down to a depth of 20 cm.As aplicações de fósforo (P em vinhedos podem causar o acúmulo desse nutriente no solo e maximizar seu potencial poluente. Este trabalho objetivou quantificar as frações de acumulação de P em solos arenosos cultivados com videiras na região Sul do Brasil. Para isso, amostras de solo foram coletadas nas camadas de 0-5, 6-10 e 11-20 cm em uma área de campo nativo e em dois vinhedos: um com 14 anos de cultivo (vinhedo 1 e outro com 30 anos (vinhedo 2, localizados no município de Santana do Livramento, Rio Grande do Sul (RS, Brasil. As amostras foram secas, moídas e submetidas ao fracionamento químico de P. Os resultados evidenciaram que os teores de P inorgânico aumentaram até 20 cm de profundidade, principalmente no vinhedo 2, em especial nas frações lábeis extraídas por resina de troca aniônica e por NaHCO3, na fra

  19. Influência do cloreto de cálcio no crescimento de explantes de Gypsophila paniculata L. (Caryophyllaceae, cultivados in vitro Influence of calcium chloride on the growth of Gypsophila paniculata L. (Caryophyllaceae explants, cultivated in vitro

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    R. Jun Takane

    1994-08-01

    Full Text Available Este trabalho teve por finalidade verificar a influência do Cloreto de Cálcio (CaCl12 no crescimento de explantes de Gypsophila paniculata L., cultivados em meio de cultura a fim de fornecer subsídios para a micropropagação desta cultura. Foram utilizados como explantes somente as gemas apicais das plantas em fase de crescimento vegetativo. Os explantes foram inoculados em meio de cultura MS (Murashigue & Skoog modificado com diferentes concentrações de CaCl2: a 440; b 880; c 1.760; d 2.640 e e 3.520 mg/1. Os explantes foram deixados em câmara de crescimento sob uma temperatura constante de 25°C ± 2°C sob fotoperíodo de 16 horas. Os explantes do meio de cultura MS com 1.760 mg/1 de CaCl2 foram os de melhor resultado, com crescimento vigoroso e presença de coloração verde intensa nas folhas. Os explantes do meio de cultura MS com 440 mg/1 de CaCl2 não apresentaram um crescimento satisfatório, com estiolamento e coloração verde pouco intensa nas folhas; os explantes do meio de cultura MS com 3.520 mg/1 de CaCl2, também não apresentaram um crescimento satisfatório, pois com 10 dias de inoculação já se percebia uma menor indução no crescimento, podendo tal efeito ser conseqüência de dois fatores: excesso de cálcio no meio de cultura ou a toxidez ocasionada pelo cloro.Shoot tips from plants still in the vegetative growth phase were used as explants. They were sterilised with tetraciclin 1% for four minutes, sodium hypochloridre (commercial sanitary water with 5% of active cloride 20% (v/v for 15 minutes and alcohol 70 GL for 2 minutes. The explants were inoculated in a growth medium MS (Murashigue & Skoog, with different concentrations of CaCl2: a 440; b 880; c 1,760; d 2,640 and e 3,520 mg/1. Explants were kept in a growth chamber at constant temperature (25°C ± 2°C with a photo period of 16 hours. The explants in the medium modified with 1,760 mg/1 of CaCl2, presented the best results, with a vigorous growth and

  20. Risco cultivado no consumo de novas drogas

    OpenAIRE

    Henriques, Susana

    2002-01-01

    Os jovens europeus do terceiro milénio são os herdeiros de uma sociedade definida em termos de consumo e opulência. São jovens nascidos na sociedade do bem-estar, onde o lazer e o entretenimento assumem um valor hegemónico nos critérios da estrutura das sociedades contemporâneas. Mas o lazer também é assimilado pelo mercado e é definido por critérios de consumo que deram origem a uma activa indústria do lazer bem estabelecida e em expansão, com papel activo na criação dos critérios de estilos...

  1. The use of Gamma radiation of Cobalt-60 to control avocado moth Stenoma catenifer Walsingham, 1912 (Lepidoptera: Elachistidae) and its effects on the quality of the fruit of Persea americana (Miller) (Lauraceae).; Uso da radiacao gama do Cobalto-60, para controlar a broca-do-abacate Stenoma catenifer Walsingham, 1912 (Lepidoptera: Elachistidae) e seus efeitos na qualidade do fruto de Persea americana (Miller) (Lauraceae)

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Lilian Karla Figueira da

    2004-07-01

    This work aimed to evaluate the influence of Gamma radiation of Cobalt-60, in the avocado moth Stenoma catenifer Walsingham, 1912 (Lepidoptera: Elachistidae) and its effects on the quality of the fruit Persea americana (Miller) (Lauraceae). For this research, insects were irradiated in ali phases of their life cycle with doses varying from O to 600 Gy and they were maintained at the temperature of 25 +- 2 deg C, humidity of 70 +- 10% and photo phase of 14 h. The species was raised on natural diet, avocado seeds. The cultivar fruits Geada were irradiated with doses that varied from 0 to 150 Gy, maintained for 15 days at room temperature (20 a 35 deg C and humidity of 70 - 80 %) and 30 days at a temperature of 10 deg C, humidity of 40 - 60 %. The chemical-physics and sensorial analyses were carried out. According to the obtained results, it was verified that the lethal dose of gamma radiation to S. catenifer eggs, was of 75 Gy; for caterpillars and pupas was of 300 Gy. The sterile-dose for upcoming adults from irradiated S. catenifer eggs was of 25 Gy; for upcoming adults from irradiated caterpillars, it was of 100 Gy; for adults coming from irradiated pupas was of 150 Gy and for irradiated adults was of 200 Gy. The irradiation in the avocado fruit, maintained at room temperature for 7 days of storage, caused change in the coloration of the fruit (dark spots and yellowish coloration) and more firmness. The sensorial characteristics were kept and the irradiated fruit was the chosen one as favorite for tasting. The irradiated fruits that were kept at 10 deg C, obtained an increase in the storage period, without changing their chemical physics characteristics. The coloration of the fruits was kept, more firmness and a subtle acidity taste increase, being effective in the conservation of the fruits and in the maintenance of their sensorial characteristics. The use of the gamma radiation as treatment quarantine of S. catenifer it was efficient, should be treated them with

  2. 3 February 2011 - British Members of the Science and Technology Committee (Commons)led by A. Miller MP signing the guest book with CERN Director for Accelerators and Technology S. Myers; in the ATLAS experimental cavern at LHC Point 1 with Spokesperson F. Gianotti and Deputy D. Charlton.

    CERN Multimedia

    Maximilien Brice

    2011-01-01

    3 February 2011 - British Members of the Science and Technology Committee (Commons)led by A. Miller MP signing the guest book with CERN Director for Accelerators and Technology S. Myers; in the ATLAS experimental cavern at LHC Point 1 with Spokesperson F. Gianotti and Deputy D. Charlton.

  3. Resposta e níveis críticos de potássio para o arroz cultivado em solos de várzea inundados Response and critical levels of potassium for rice cultivated in lowland waterlogged soils

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    Andrei Rodrigo Cabbau

    2004-02-01

    Full Text Available O presente trabalho foi conduzido em casa-de-vegetação do Departamento de Ciência do Solo da Universidade Federal de Lavras, no período de fevereiro a junho de 2002, com os objetivos de avaliar para o arroz (Oriza sativa L. cv. Jequitibá, cultivado em solos de várzea inundados, a resposta à adubação potássica e a contribuição das formas de K na nutrição, e estimar os níveis críticos do nutriente nos solos e na planta. O delineamento experimental utilizado foi o inteiramente casualizado, em esquema fatorial 4x5, com quatro repetições, sendo quatro solos de várzea [Neossolo Flúvico (RU, Gleissolo Háplico (GX, Gleissolo Melânico (GM e Organossolo Mésico (OY] e cinco níveis de saturação por K da CTC potencial (natural, 4, 6, 8 e 10%. As saturações naturais foram de 1,49, 1,65, 1,30 e 1,55% para os solos RU, GX, GM e OY, respectivamente. Inicialmente, amostras suficientes de 4 dm³ dos solos receberam correção com calcário para elevar a V a 50% e incubados por 30 dias. Em seguida, amostras de 3 dm³ dos solos receberam os tratamentos com potássio e uma adubação básica com macro e micronutrientes e foram incubados por mais 30 dias em vasos com capacidade para 5 dm³. No final desse período, os solos foram inundados onde se cultivaram duas plantas de arroz por vaso, nas quais avaliaram-se os teores foliares de K no florescimento e a produção de grãos no final do ciclo. Em subamostras obtidas dos solos dos vasos antes e após o cultivo, analisaram-se as formas de potássio: K total (Ktot, K não-trocável (Knt, K trocável (Ktr, K em solução (Ksol e K disponível pelo extrator Mehlich 1 (K M1. Pelos resultados, verificou-se que o arroz respondeu em produção de grãos à adubação potássica em todos os solos estudados. Houve aproveitamento do Knt pela cultura, embora o Ktr tenha sido a forma que mais contribuiu no suprimento do nutriente. As saturações críticas por K para 90% da produção máxima foram 4

  4. Fósforo num Cambissolo cultivado com cana-de-açúcar por longo tempo: I - fracionamento seqüencial Phosphorus in an Inceptsoil under long-term sugarcane: I - sequential fractionation

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    Jader Galba Busato

    2005-12-01

    Full Text Available A caracterização dos diversos compartimentos de P, além de avaliar frações não monitoradas regularmente pelos métodos de diagnose da fertilidade do solo, pode favorecer o entendimento do ciclo desse nutriente. O objetivo deste trabalho foi avaliar as alterações nos compartimentos de P de um Cambissolo Háplico Ta eutrófico vértico, cultivado com cana-de-açúcar por longo tempo. Em uma das áreas de estudo, não foi realizada a despalha da cana utilizando fogo por ocasião da colheita durante 55 anos. Em outra área, realizou-se a queima do canavial, mas, durante 35 anos, foram aplicados, via irrigação por aspersão, 120 m³ ha-1 ano-1 de vinhaça. Em duas áreas adjacentes a ambos os locais, foram coletadas amostras para efeito de comparação. As amostras foram coletadas em duas camadas (0-0,20 e 0,20-0,40 m e analisadas por meio de um procedimento de extração seqüencial de P. Foram determinados também os teores de P total, P disponível, P orgânico, P inorgânico e P nas substâncias húmicas. Os resultados deste trabalho indicam que o manejo da cana crua possibilitou maior conteúdo de P em todos os compartimentos analisados. A manutenção da palha e a adição de vinhaça alteraram a distribuição das frações de P no solo, com diminuição da participação das formas não-lábeis e conseqüente aumento das formas lábeis. Em todos os manejos observados, o teor de P no ácido húmico foi maior que no ácido fúlvico. O menor teor de P orgânico na cana crua evidenciou a participação desse componente na disponibilidade de P por meio de sua mineralização.The characterization of several soil phosphorus (P pools allowed the evaluation of P components not usually monitored in fertilizer soil tests and can help to understand this nutrient's cycle. The aim of this study was to evaluate the changes in P pools of a Fluventic Eutrochrepts fine clay which had been under long-time sugarcane plantation. In one situation the

  5. Estabilidade temporal da distribuição espacial da armazenagem de água em um solo cultivado com citros Temporal stability of the spatial distribution of water storage in a soil under citrus cultivation

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    Genelício Crusoé Rocha

    2005-02-01

    Full Text Available O presente trabalho objetivou quantificar e caracterizar a variabilidade espaço-temporal e a estabilidade temporal da armazenagem da água em um Latossolo Amarelo argissólico cultivado com citros. A parcela experimental foi montada em um solo sob uma cultura de citros com 10 anos de idade, consistindo de 40 pontos de observação ao longo de duas transeções, com espaçamento de 4 x 7 m, isto é, duas transeções 1 e 2 (coincidentes com duas linhas de plantas paralelas e distantes entre si de 7 m e cada uma delas com 20 pontos, separados um do outro de 4 m, delimitando uma área de terreno de dimensões 80 x 14 m (40 plantas. Cada ponto localizava-se no centro da distância entre duas plantas (2 m do tronco na linha de plantas. Os pontos de observação da transecão 1 foram enumerados de 1 a 20 e os da transecão 2 de 21 a 40 no sentido aposto. Em cada ponto de observação, foi instalado um tubo de acesso à sonda de nêutrons até a profundidade de 1,20 m. As medições foram feitas ao longo de dois anos, em períodos compreendidos entre novembro e julho do ano seguinte, semanalmente. Em cada ponto de observação, foram retiradas amostras de solo com estrutura deformada para a quantificação das frações granulométricas ao longo do perfil. A estabilidade temporal foi observada pelo comportamento dos valores nos 40 pontos ao longo do tempo, os quais mantiveram a sua característica, independentemente do tempo de amostragem, o que pôde ser comprovado por meio do coeficiente de correlação de Pearson utilizado entre datas de observação. Por meio da técnica da diferença relativa, foi possível identificar os pontos que, independentemente de tempo, estimaram a média real do campo, os mais secos e os mais úmidos. O ponto 28 foi escolhido, em decorrência do valor da diferença relativa, como o ponto representativo da média, e identificou-se o ponto 15 como o mais seco e o 05 como o mais úmido.The objective of this work was to

  6. Compensatory growth of Malaysian prawns reared at high densities during the nursery phase Crescimento compensatório em camarões-da-malásia cultivados sob altas densidades durante a fase de berçário

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    H.L.A. Marques

    2011-04-01

    Full Text Available The objective of this work was to verify the occurrence of compensatory growth in Malaysian prawn (Macrobrachium rosenbergii reared in pens, after being stocked in cages under high densities during nursery phase. The experiment was carried out in 0.5 m² cages and 2-m² pens set in natural bottom pond with 2,400 m². Prawn post-larvae (PL with an average weight of 0.026 ± 0.012 g (nursery phase were initially stocked in 16 cages at the densities of 50, 400, 800 and 1,200 PL m-2. Sixty days later, prawns were transferred to 16 growing pens, at the density of 12 prawns m-2. Initial average weight of the prawn in this phase was the final average weight registered in the nursery phase, as follows: 50 PL m-2 = 2.3 ± 0.3 g; 400 PL m-2 = 0.5 ± 0.03 g; 800 PL m-2 = 0.3 ± 0.05 g and 1,200 PL m-2 = 0.1 ± 0.01 g. Commercial rations for prawns (35% crude protein were given once a day, in the afternoon. After 244 days, survival, average weight and biomass did not differ significantly among prawns with different initial average weight. Relative growth rate was significantly greater in prawns previously stocked at 1,200 PL m-2 and feed conversion efficiency was significantly better for those previously stocked at 400 and 1,200 PL m-2. These results suggest the existence of partial compensatory growth in M. rosenbergii, what can successfully carry on stocking of prawns of this species at high densities in the nursery phase.Este trabalho foi realizado com o objetivo de verificar a ocorrência de crescimento compensatório em camarões-da-malásia (Macrobrachium rosenbergii cultivados em cercados, após serem estocados em gaiolas sob altas densidades durante a fase de berçário. O experimento foi conduzido em gaiolas com 0,5 m² e cercados com 2 m² instalados em um viveiro de fundo natural com 2.400 m². Pós-larvas (PL de camarões com peso médio de 0,026 ± 0,012 g (fase de berçário foram inicialmente estocadas em 16 gaiolas, nas densidades de 50, 400

  7. EFFECTS OF ROW SPACING ON AGRONOMIC CHARACTERS OF THREE DOUBLE CROPPED SUNFLOWER HYBRIDS EFEITOS DO ESPAÇAMENTO ENTRE LINHAS NOS CARACTERES AGRONÔMICOS DE TRÊS HÍBRIDOS DE GIRASSOL CULTIVADOS NA SAFRINHA

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    Ana Cláudia Barneche de Oliveira

    2009-03-01

    ="color: #1d1b11;">; plant arrangement; yield components; double cropping.

    Com o objetivo de avaliar o efeito do espaçamento entre linhas, nas características agronômicas de três híbridos de girassol, foi conduzido um ensaio em Rio Verde (GO. Utilizaram-se os híbridos Agrobel 960, BRHS 5 e Hélio 251, cultivados nos espaçamentos de 40 cm, 50 cm, 70 cm e 80 cm entre linhas, com população estável de 45.000 plantas ha-1, após cultivo de feijão na safra de verão. A semeadura foi realizada em 12 de março e a colheita em 5 de julho de 2005. Avaliaram-se a produtividade e o peso de 1.000 aquênios, o diâmetro do capítulo, o número de aquênios por capítulo e a altura de plantas. Os resultados obtidos permitiram concluir que o híbrido de girassol Agrobel 960 apresentou maior produtividade, mesmo sendo o de menor porte. Tal produtividade foi atribuída ao maior número de aquênios por capítulo. Os híbridos de girassol não diferiram, quanto ao peso de 1.000 aquênios e diâmetro do capítulo. O espaçamento de 40 cm entre linhas apresentou a maior produtividade e número de aquênios por capítulo, não influenciando o peso de 1.000 aquênios, o diâmetro do capítulo e a altura de plantas de girassol.

     

    Absorção de nutrientes em alho vernalizado proveniente de cultura de meristemas cultivado sob doses de nitrogênio Absorption march of nutrients in vernalized garlic originated from tissue culture cultivated under nitrogen doses

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    Rovilson José de Souza

    2011-12-01

    Full Text Available Nos últimos anos, verificou-se significativa elevação na produtividade e qualidade do alho cultivado no Brasil. Dentre os fatores que proporcionaram este resultado pode-se citar o uso de cultivares nobres, da vernalização e da utilização de alho-semente livres de vírus. Entretanto, poucos são os estudos realizados visando avaliar o crescimento e a absorção de nutrientes em cultivares de alho nobre vernalizadas, provenientes de cultura de meristemas, altamente produtivas em relação às cultivares de alho comum. O objetivo deste trabalho foi determinar a marcha de absorção de nutrientes em alho vernalizado proveniente de cultura de meristemas em função de diferentes doses de N aplicadas em cobertura. Os tratamentos consistiram de cinco doses de N aplicadas em adubação de cobertura (60, 90, 120, 150 e 180 kg ha-1 e seis épocas de avaliação (30, 50, 70, 90, 110 e 130 dias após o plantio. Adotou-se o delineamento experimental de blocos casualizados, com parcelas subdivididas no tempo, com quatro repetições. Os bulbos-semente da cultivar Roxo Pérola de Caçador provenientes de cultura de meristemas (4ª multiplicação em campo foram submetidos à vernalização por 50 dias a 4ºC. Foram coletados dados de crescimento e desenvolvimento de plantas aos 30, 50, 70, 90, 110 e 130 dias após o plantio. Além disso, foram coletadas plantas para a determinação da massa seca e quantificação dos nutrientes. Não verificou-se diferenças significativas no crescimento, no acúmulo de massa seca e no desenvolvimento de bulbos para as doses de N aplicadas. A extração de macronutrientes em todas as doses de N avaliadas obedeceu a seguinte sequência: N>K>Ca>S>P>Mg, enquanto que a sequência de extração de micronutrientes observada foi Fe>B>Zn>Cu>Mn. Diante dos resultados obtidos, constatou-se a seguinte extração média de nutrientes por plantas de alho vernalizado (kg/ha: N= 179,25, P= 19,95, K= 103,54, Ca= 46,84, Mg= 6,98, S= 31

  8. Nuevos datos de las familias Aloaceae y Agavaceae en la costa mediterránea de la Península Ibérica

    OpenAIRE

    Guillot Ortiz, Daniel; Meer, Piet van der

    2005-01-01

    En este artículo se citan un grupo de taxones de las familias Agavaceae y Aloaceae cultivados y naturalizados en las provincias de Tarragona, Castellón, Valencia y Alicante, donde no eran conocidos: Agave lechuguilla Torr., A. salmiana Otto. ex Salm., Aloe arborescens var. ucriae Berger, A. pluridens Haw., .A. x delaetii Radl., A. variegata L., A. brevifolia Mill. También se amplia el área de distribución de otros taxones correspondientes a estas familias , ya conocidos en la zona, como Agave...

  9. Atividade residual de herbicidas pré-emergentes aplicados na cultura da soja sobre o milheto cultivado em sucessão Effect of the residual activity of pre-emergent herbicides applied in soybean on pearl millet cultivated in succession

    Directory of Open Access Journals (Sweden)

    H.A. Dan

    2011-06-01

    Full Text Available O objetivo deste estudo foi avaliar a atividade residual de herbicidas utilizados no manejo de plantas daninhas em pré-emergência da cultura da soja, bem como verificar seus efeitos sobre o milheto cultivado em sucessão. Utilizaram-se parcelas de 80 m², em delineamento de blocos casualizados, com quatro repetições, em esquema de parcelas subdivididas 5 x 4, correspondendo à aplicação dos herbicidas imazaquin (0,160 kg ha-1, diclosulam (0,035 kg ha-1, sulfentrazone (0,600 kg ha-1 e flumioxazin (0,050 kg ha-1 e uma testemunha, aplicados logo após a semeadura do cultivar de soja Msoy-6101. Nas subparcelas, realizou-se a semeadura do milheto, cultivar ADR-7010, em quatro períodos, correspondendo a 0, 40, 80 e 120 dias após a aplicação dos herbicidas (DAA. Durante a condução do ensaio, foram determinados os níveis de intoxicação, estande, altura e massa seca da parte aérea das plantas de milheto. No final do ciclo foi avaliado o rendimento de grãos da cultura. O híbrido de milheto ADR-7010 apresentou elevada sensibilidade com relação à atividade residual dos herbicidas sulfentrazone, diclosulam e imazaquin quando cultivado logo após a aplicação destes. A bioatividade dos herbicidas imazaquin, diclosulam e flumioxazin não foi suficiente para alterar o rendimento de grãos do milheto cultivado em sucessão à soja (120 DAA, mostrando que esse intervalo de tempo é suficiente para dissipação desses herbicidas. Dos herbicidas pré-emergentes avaliados, o sulfentrazone apresentou maior atividade residual, influenciado negativamente o rendimento da cultura durante o intervalo de tempo estudado.The objective of this study was to evaluate the persistence of herbicides applied in pre-emergence in soybean crop and the effects of these herbicides on pearl millet grown in succession. The herbicides imazaquin (0.160 kg ha-1, diclosulam (0.035 kg ha-1, sulfentrazone (0.600 kg ha-1, and fumioxazin (0.050 kg ha-1 were used immediately

  10. Utilização de modelos estatísticos para avaliar dados de produção do camarão Litopenaeus vannamei cultivados em águas oligohalina e salgada = Use of statistical models to evaluate production data of Litopenaeus vannamei, reared in oligohaline and salty waters

    Directory of Open Access Journals (Sweden)

    Diogo Bessa Neves Spanghero

    2008-10-01

    Full Text Available O camarão marinho Litopenaeus vannamei pode ser cultivado em águas comampla faixa de salinidade (0,5-60 g L-1. Desta forma, objetivou-se comparar dados de produção desse crustáceo quando cultivado em águas oligohalina (0,5-5,0 g L-1 ou salgada (25,0-40,0 g L-1, utilizando-se modelos matemáticos. Para relacionar as variáveis de manejo com as de produção, os modelos foram formulados com base em um banco de dados com 278 cultivos comerciais da região Nordeste do Brasil. Para estimar os parâmetros dos modelos, utilizou-se a técnica dos mínimos quadrados. A seleção das variáveis foi realizada com o processo de Stepwise associado à transformação de Box e Cox. A adequação das equações e os pressupostos de normalidade, para os erros, foram analisados com base na análise de variância, na estatística de Durbin-Watson, na análise de resíduo e no teste denormalidade. Em todas as equações formuladas, a variável cultivo em água salgada (CAS foi selecionada, evidenciando diferença significativa (p The marine shrimp Litopenaeus vannamei may be reared in a wide range of salinity (0.5-60.0 g L-1. In this study, the production data of shrimp reared either in oligohaline (0.5-5.0 g L-1 or salty waters (25.0- 40.0 g L-1 were compared using mathematical models. The models considered variables related to management and production, and were formulated using a database with 278 culture cycles from different shrimp farms in Northeastern Brazil. The least-squarestechnique was applied to estimate the model’s parameters. The selection of variables used the Stepwise process associated to Box and Cox’s transformation. The adequacy of the equations and the normality estimated for the errors were analyzed on the basis of theanalysis of variance in the Durbin-Watson statistics, on the residue analysis and the normality test. For all the formulated equations, the variable ‘culture in salty water’ was selected, evidencing significant

  11. Francisella philomiragia, bacteria asociada con altas mortalidades en salmones del Atlántico (Salmo salar cultivados en balsas-jaulas en el lago Llanquihue Francisella philomiragia, a bacteria associated with high mortalities in Atlantic salmon (Salmo salar cage-farmed in Llanquihue lake

    Directory of Open Access Journals (Sweden)

    H Bohle

    2009-01-01

    Full Text Available Francisella philomiragia fue aislada de salmón del Atlántico cultivado en balsas-jaulas en el lago Llanquihue con brotes de una enfermedad granulomatosa con altas tasas de morbilidad y mortalidad acumuladas entre 5% a 20%. Los aislados bacterianos tienen 100% similitud con F. philomiragia ssp noatunensis o F. piscicida aislado de bacalao en Noruega, 99% de similitud con Francisella sp. detectado en tilapia en Asia y Centroamérica y 99% de similitud con la especie tipo F. philomiragia por análisis filogenético del gen 16s rDNA.Francisella philomiragia was isolated from Atlantic salmon cage-farmed in the Llanquihue lake with outbreaks of a granulomatous disease, with high rates of morbidity and an accumulated mortalities between 5% to 20%. The isolates had 100% similarity with F. philomiragia ssp noatunensis or F. piscicida isolated in Atlantic cod, 99% similarity with Francisella sp. detected in tilapia from Asia and Central America and 99% of similarity with the reference strain F. philomiragia through 16s rDNA phylogenetic analysis.

  12. Comparação econômica da produção de grãos secos e silagem de grãos úmidos de milho cultivado em sistema de plantio direto Economical comparison of dried corn production and high moisture corn silage cultivated in no-till system

    Directory of Open Access Journals (Sweden)

    Samir Paulo Jasper

    2009-10-01

    Full Text Available No presente trabalho que foi realizado na Fazenda Experimental Lageado, da Universidade Estadual Paulista em Botucatu, SP, objetivou-se avaliar os custos envolvidos na produção de silagem de grãos úmidos de milho, tendo como referência o processamento seco deste cereal, ambos cultivados em sistema de plantio direto. Para a avaliação foram determinados os custos envolvidos nas operações de máquinas agrícolas, insumos e na etapa de pós-colheita. Os resultados observados permitiram concluir que o custo por hectare para produção de silagem de grãos úmidos foi de R$1.398,06, sendo 8,8% menor do que os custos para produção de milho seco (R$ 1.533,78.This work was carried out at FCA-Botucatu/UNESP - São Paulo State University, with the aim to evaluate the costs involved in high moisture corn silage production, using the corn drying process as witness, both cultivated in no-tillage system. The costs involved in the operations of agricultural machines, inputs and post harvest phase were obtained for evaluation. The results allowed concluding that the cost per hectare for high moisture corn silage (US$ 607.85 was 8.8% smaller than the costs for dried corn (US$ 666.86.

  13. SIMS Pb/Pb dating of Zr-rich minerals in lunar meteorites Miller Range 05035 and LaPaz Icefield 02224:Implications for the petrogenesis of mare basalt

    Institute of Scientific and Technical Information of China (English)

    HSU; WeiBiao

    2010-01-01

    Miller Range (MIL) 05035 and LaPaz Icefield (LAP) 02224 are unbrecciated lunar basalt meteorites. In this report, we studied their petrography and mineralogy and made in situ uranogenic Pb/Pb dating of Zr-rich minerals. Petrography and mineralogy of these two lunar meteorites are consistent with previous investigations. The zirconolite Pb/Pb age of MIL 05035 is 3851±8 Ma (2σ), in excellent agreement with previous reports. This age suggests that MIL 05035 could be paired with Asuka 881757, a low-Ti mare basalt meteorite. The magmatic event related to MIL 05035 was probably due to the late heavy impact bom- bardment on the moon around 3.9 Ga. One baddeleyite grain in LAP 02224 shows a large variation of Pb/Pb age, from 3109±29 to 3547±21 Ma (2σ), much older than the whole-rock age of the same meteorite (~3.02±0.03 Ga). The other baddeleyite grain in LAP 02224 has an age of 3005±17 Ma (2σ). The result indicates that the minimum crystallization age of LAP 02224 is ~3.55 Ga and the younger ages could reflect late thermal disturbance on U-Pb system.

  14. Atividade da rubisco e das enzimas de síntese de hidrólise de sacarose, associada à produtividade de látex , em clones de seringueira [ Havea brasiliensis (Willd ex. Adr. de Juss.) Muell.-Arg] cultivados em Lavras, MG Activity of rubisco and enzymes of sucrose synthesis and hydrolysis associated to latex productivity, in rubber tree clones [Hevea brasiliensis (Willd ex. Adr. de Juss.) Muell.-Arg] cultivated in Lavras, MG

    OpenAIRE

    Paulo Araquém Ramos Cairo; Luiz Edson Mota de Oliveira; Alessandro Carlos Mesquita

    2009-01-01

    Estudos já realizados sobre clones de seringueira cultivados no estado de Minas Gerais têm fornecido indícios que permitem supor a existência de uma possível associação entre a variabilidade fotossintética e a produção de látex. Contudo, ainda é escasso o conhecimento acerca da assimilação de CO2 e o transporte de carbono das folhas até a casca, onde a biossíntese de látex ocorre de forma mais intensa. Em todas as etapas desses metabolismos, as reações são reguladas por algumas enzimas-chave....

  15. Pré-filtração em pedregulho e filtração lenta com areia, manta não tecida e carvão ativado para polimento de efluentes domésticos tratados em leitos cultivados Pré-filtration in boulder and slow sand filtration with non-woven synthetic layers and granulated vegetal coal to improve quality in wastewater treated by constructed wetlands

    OpenAIRE

    José E. S. Paterniani; Marcelo J. M. da Silva; Tulio A. P. Ribeiro; Melina Barbosa

    2011-01-01

    O presente trabalho teve como objetivo comparar sistemas de filtragem, composto de pré-filtro de pedregulho seguido de filtro lento com o meio filtrante areia e no topo manta sintética não tecida e pré-filtro de pedregulho seguido de filtro lento com meio filtrante areia e carvão ativado granular e no topo manta sintética não tecida, para polimento de efluentes domésticos tratados em leitos cultivados, visando à aplicação na fertirrigação. Na comparação dos sistemas de filtragem, avaliou-se a...

  16. Use of hematological parameters to assess the efficiency of quince (Cydonia oblonga Miller) leaf extract in alleviation of the effect of ultraviolet--A radiation on African catfish Clarias gariepinus (Burchell, 1822).

    Science.gov (United States)

    Osman, Alaa G M; Koutb, Mostafa; Sayed, Alaa El-Din H

    2010-04-01

    The present study aimed to elucidate the negative impacts of UVA on some biochemical and hematological variables of the economically important African catfish, Clarias gariepinus and investigates the putative role of quince (Cydonia oblonga Miller) leaf extract in protection and/or alleviation of such negative impacts. Changes in the hematological and blood biochemical values often reflect alteration of physiological state. Blood parameters can be useful for the measurement of physiological disturbances in stressed fish and thus provide information about the level of damage in the fish. We found a significant (P<0.05) decrease in the red blood cell counts, hemoglobin and hematocrit in the groups exposed to UVA compared to the control groups. Exposure to UVA induced marked red cell shrinkage (increased mean cell hemoglobin concentration) and showed an elevation in mean cell volume and mean cell hemoglobin in the blood of the exposed fish compared to the control. A significant (P<0.05) reduction in the total white blood cells was recorded in the exposed fish compared to the control. The biochemical parameters (blood glucose, total plasma protein, blood cholesterol, plasma creatinine, aspartic amino transferase and alanine amino transferase) exhibited a significant increase in the blood of fish exposed to UVA. Methanolic extract of quince leaf before ripening of the fruits was analyzed by GC/MS. To investigate the biological impact of this extract and its biologically active components, this extract was tested for its putative role in alleviation of UVA effect on catfish. Quince leaf extract had the ability to prevent hematotoxic stress induced by UVA and resulted in enhancement of the immune system of catfish represented by significant (P<0.05) increase in the number of white blood cells and lymphocytes of the catfish. Quince extract also protected the red blood cells from UVA damage. To our knowledge this is the first report of the effect of quince leaf extract on

  17. Fósforo na produtividade e qualidade de sementes de feijão Carioca Precoce cultivado no período das águas Phosphorus on the productivity and seed quality of bean Carioca Precoce cultivated during the rainy season

    Directory of Open Access Journals (Sweden)

    Claudemir Zucareli

    2011-03-01

    Full Text Available O fósforo é o nutriente que mais limita a produtividade do feijoeiro em solos brasileiros, podendo influenciar na qualidade fisiológica de sementes. Objetivou-se com o trabalho avaliar a produtividade e a qualidade de sementes de feijão (Phaseolus vulgaris L. do cultivar Carioca Precoce cultivado no período das águas em resposta à adubação fosfatada. Foram avaliadas seis doses de P (0; 30; 60; 90; 120 e 150 kg de P2O5 ha-1, aplicados no sulco da semeadura na forma de superfosfato triplo, com cinco repetições. A produtividade de sementes foi determinada com base na massa das sementes produzidas na área útil da parcela experimental. A qualidade das sementes foi avaliada por meio das seguintes determinações: massa de 100 sementes, teor de água, germinação, primeira contagem, teor de água após o envelhecimento acelerado, germinação após o envelhecimento acelerado, condutividade elétrica, emergência de plântulas no campo e massa de matéria seca de plântulas. A produtividade de sementes do feijão Carioca Precoce, cultivado no período das águas, aumentou linearmente em função do suprimento de P. A massa de 100 sementes e a qualidade fisiológica das sementes não foram alteradas pelo incremento das doses de P.Common bean is an important crop in Brazilian agriculture and phosphorus (P deficiency is one of the most yield limiting factors for this crop, thus plant P-deficiency can hamper the seed physiological quality. The objective of this study was to evaluate the productivity and quality of common bean seeds cv. Carioca Precoce cultivated during the rainy season in response to phosphate fertilizer. Six levels of P (0; 30; 60; 90; 120 and 150 kg of P2O5 ha-1, with five replications, were applied in the groove of sowing as triple superphosphate. The seeds yield, at the experimental plot, was determined by the dry weight. Seed quality was evaluated through the following determinations: 100-seed mass, seed moisture content

  18. Fauna parasitária de tambaqui Colossoma macropomum (Characidae cultivado em tanque-rede no estado do Amapá, Amazônia oriental Parasitic fauna of tambaqui Colossoma macropomum(Characidae farmed in cages in the State of Amapá, eastern Amazon

    Directory of Open Access Journals (Sweden)

    Evandro Freitas Santos

    2013-03-01

    Full Text Available O objetivo principal deste trabalho foi estudar a parasitofauna e a relação hospedeiro- parasito em tambaqui Colossoma macropomum cultivados em tanques-rede no Rio Matapi, município de Santana, estado do Amapá, região da Amazônia oriental, Brasil. Foram examinados 60 tambaquis, dos quais 96,7% estavam parasitados por protozoários Ichthyophthirius multifiliis (Ciliophora e Piscinoodinium pillulare (Dinoflagellida, monogenoideas Mymarotheciun boegeri e Anacanthorus spathulatus (Dactylogyridae e sanguessugas Glossiiphonidae gen. sp. (Hirudinea. Os maiores níveis de parasitismo foram causados por protozoários I. multifiliis e P. pillulare e os menores por sanguessugas Glossiiphonidae gen. sp. Porém, os índices de infestação não tiveram efeitos na saúde dos peixes hospedeiros, uma vez que o fator de condição relativo (Kn não foi estatisticamente (pThe purpose of this paper was to evaluate the parasitic fauna and the host-parasite relationship in Colossoma macropomum farmed in cages of Matapi River, municipally of Santana, State of Amapá, in eastern Amazon, Brazil. Of 60 specimens of tambaqui examined, 96.7% were parasitized by protozoans Ichthyophthirius multifiliis (Ciliophora and Piscinoodinium pillulare (Dinoflagellida, monogenoideans Mymarotheciun boegeri and Anacanthorus spathulatus (Dactylogyridae, and leeches Glossiphoniidae gen. sp. (Hirudinea. The higher infestation levels were caused by protozoans I. multifiliis and P. pillulare, while the lower infestation levels were caused by leeches. No effects of parasitic infestation rates on fish health were observed. The relative condition factor (Kn was not correlated with the intensity of parasites found. This was the first record of I. multifiliis and P. pillulare in C. macropomum farmed in cages in the Brazilian Amazon.

  19. Comparative evaluation of the susceptibility of cultivated fishes to the natural infection with myxosporean parasites and tissue changes in the host Avaliação comparativa da susceptibilidade de peixes cultivados à infecção natural com parasitos mixosporídeos e alterações teciduais no hospedeiro

    Directory of Open Access Journals (Sweden)

    M. L. MARTINS

    1999-05-01

    Full Text Available The purpose of the study was to evaluate the susceptibility of 4 important cultivated fishes to sporozoan parasites. Fishes were collected bimonthly from a pond for a period of 1 year. Myxobolus colossomatis and Henneguya piaractus were found in the internal organs and gills, respectively. The combined incidence of parasitism by both myxozoa was 97.3% in pacu (Piaractus mesopotamicus, 33.3% in hybrid tambacu (Piaractus mesopotamicus x Colossoma macropomum, 5.6% in tambaqui (Colossoma macropomum and 0% in carp (Cyprinus carpio. Pacu was the most susceptible fish and was parasitized 79.2% in the gills, 66.7% in the kidney and 50% in the spleen. Histopathological evaluation of the gills showed hemorrhages, inflammatory reaction with mononuclear cells and fibroblasts and hyperplasia of basal and goblet cells.O objetivo deste estudo foi avaliar a susceptibilidade de 4 importantes peixes cultivados a parasitos esporozoários. Os peixes foram coletados bimestralmente de um tanque de cultivo, durante 1 ano. Myxobolus colossomatis e Henneguya piaractus foram encontrados nos órgãos internos e brânquias, respectivamente. A incidência de ambos os parasitos foi de 97,3% em pacu (Piaractus mesopotamicus, 33,3% no híbrido tambacu (Piaractus mesopotamicus x Colossoma macropomum, 5,6% em tambaqui (Colossoma macropomum e 0% em carpa (Cyprinus carpio. Pacu foi o peixe mais susceptível, encontrando-se parasitado 79,2% nas brânquias, 66,7% nos rins e 50% no baço. A análise histopatológica das brânquias mostrou hemorragias, reação inflamatória com células mononucleares, fibroblastos e hiperplasia das células basais e mucosas.

  1. Alteração química de solo cultivado com capim Tifton 85 (Cynodon spp. e fertirrigado com percolado de resíduo sólido urbano - doi: 10.4025/actascitechnol.v33i3.6124

    Directory of Open Access Journals (Sweden)

    Denise de Freitas Silva

    2011-07-01

    Full Text Available Avaliaram-se as características químicas de um solo cultivado com capim Tifton 85 (Cynodon spp. após aplicação de diferentes taxas de percolado de resíduo sólido urbano (RSU. Empregou-se um reservatório de PVC, com capacidade de 5.000 L, preenchido com RSU novo, para produzir o percolado utilizado na pesquisa. O percolado foi aplicado a taxas de 0, 250, 500, 750, 1000 kg ha-1 dia-1 de DBO. Mediram-se o pH, o conteúdo de matéria orgânica (MO, N-total, NO3-, NH4+, P disponível e as concentrações trocáveis de K, Ca, Mg, Mn. Determinou-se por cálculo a capacidade de troca catiônica (CTC do solo. Verificou-se que a aplicação do percolado de RSU proporcionou aumento na concentração de N-total, K, P, NO3- e Mn do solo. A utilização de percolado de RSU a taxas inferiores a 750 kg ha-1 dia-1 de DBO não causou elevação das concentrações dos contaminantes a níveis críticos, durante o período experimental e, portanto, podem ser utilizadas. Entretanto, é recomendável um monitoramento de longo prazo das características químicas do solo, bem como das águas subterrâneas para que se avaliem os riscos de contaminação ambiental se a disposição for feita em área externa ao aterro sanitário.

  2. Analysis of the essential oils from Calendula officinalis growing in Brazil using three different extraction procedures Análise por CG-EM do óleo essencial de Calendula officinalis cultivado no Brasil utilizando-se três diferentes processos de extração

    Directory of Open Access Journals (Sweden)

    Zilda Cristina Gazim

    2008-09-01

    Full Text Available Terpenes and aroma volatiles from flowers of Calendula officinalis cultivated in southeastern Brazil were obtained by steam distillation (SD, headspace-cold finger (HS-CF extraction and headspace solid-phase microextraction (HS-SPME coupled with gas chromatography and mass spectrometric analysis. The dried flowers contained 0.1% oil. Kovats indices and mass spectra were used to identify 27 individual components in the various volatile fractions. The main components present in the volatile fractions of the C. officinalis flowers, obtained by SD, HS-SPME, and HS-CF, were δ-cadinene (22.5, 22.1, and 18.4 % and γ-cadinene (8.9, 25.4, and 24.9 % while 20.4 % of α-cadinol was seen only after SD extraction.Terpenos e aromas voláteis das flores de Calendula officinalis cultivados no sudoeste do Brasil foram isolados por arraste a vapor (SD, dedo frio (HS-CF e micro extração em fase sólida (HS-SPME acoplada à espectrometria de massas. As flores secas da C. officinalis contêm 0,1% de óleo essencial e foram identificadas 27 substâncias químicas através do cálculo do índice de Kováts e interpretação dos espectros de massas. As substâncias majoritárias presentes no óleo essencial das flores de C. officinalis, obtido por SD, HS-SPME e HS-CF foram δ-cadinene (22,5; 22,1 e 18,4 % γ-cadinene (8,9, 25,4 e 24,9 % e 20.4 % de α-cadinol foi observado apenas na extração por arraste a vapor.

  3. David Miller on Immigration Policy and Nationality

    DEFF Research Database (Denmark)

    Lægaard, Sune

    2007-01-01

    determinative of the scope of distributive justice and as giving rise to national collective responsibility. Three interpretations of his main positive reason for restricting immigration, which concerns the importance of a shared public culture, are then discussed: culture as having valuable social functions...... insignificant in relation to immigration policy....

  4. Terry Miller : Eesti on majandusvabaduse maailmas kangelane

    Index Scriptorium Estoniae

    2008-01-01

    Majanduskonverentsil Restart esinenud pikaajalise kogemusega karjääridiplomaadi Terry Milleri hinnang Eesti majandusvabadusele. Eesti on maailma majandusvabaduse indeksi 12. kohal, kuid tööturu vabaduse osas on Eesti viimaste hulgas. Lisa: Majandusvabadus suurendab rahvuslikku rikkust

  5. Comparative genomic analysis of Campylobacter jejuni associated with Guillain-Barré and Miller Fisher syndromes: neuropathogenic and enteritis-associated isolates can share high levels of genomic similarity

    Directory of Open Access Journals (Sweden)

    Endtz Hubert P

    2007-10-01

    Full Text Available Abstract Background Campylobacter jejuni infection represents the most frequent antecedent infection triggering the onset of the neuropathic disorders Guillain-Barré syndrome (GBS and Miller Fisher syndrome (MFS. Although sialylated ganglioside-mimicking lipo-oligosaccharide (LOS structures are the strongest neuropathogenic determinants in C. jejuni, they do not appear to be the only requirement for a neuropathic outcome since strains capable of their production have been isolated from patients with uncomplicated cases of enteritis. Consequently, other pathogen and/or host-related factors contribute to the onset of neurological complications. We have used comparative genomic hybridization to perform a detailed genomic comparison of strains isolated from GBS/MFS and enteritis-only patients. Our dataset, in which the gene conservation profile for 1712 genes was assayed in 102 strains, including 56 neuropathogenic isolates, represents the largest systematic search for C. jejuni factors associated with GBS/MFS to date and has allowed us to analyze the genetic background of neuropathogenic C. jejuni strains with an unprecedented level of resolution. Results The majority of GBS/MFS strains can be assigned to one of six major lineages, suggesting that several genetic backgrounds can result in a neuropathogenic phenotype. A statistical analysis of gene conservation rates revealed that although genes involved in the sialylation of LOS structures were significantly associated with neuropathogenic strains, still many enteritis-control strains both bear these genes and share remarkable levels of genomic similarity with their neuropathogenic counterparts. Two capsule biosynthesis genes (Cj1421c and Cj1428c showed higher conservation rates among neuropathogenic strains compared to enteritis-control strains. Any potential involvement of these genes in neuropathogenesis must be assessed. A single gene (HS:3 Cj1135 had a higher conservation rate among enteritis

  6. The use of Gamma radiation of Cobalt-60 to control avocado moth Stenoma catenifer Walsingham, 1912 (Lepidoptera: Elachistidae) and its effects on the quality of the fruit of Persea americana (Miller) (Lauraceae)

    International Nuclear Information System (INIS)

    This work aimed to evaluate the influence of Gamma radiation of Cobalt-60, in the avocado moth Stenoma catenifer Walsingham, 1912 (Lepidoptera: Elachistidae) and its effects on the quality of the fruit Persea americana (Miller) (Lauraceae). For this research, insects were irradiated in ali phases of their life cycle with doses varying from O to 600 Gy and they were maintained at the temperature of 25 +- 2 deg C, humidity of 70 +- 10% and photo phase of 14 h. The species was raised on natural diet, avocado seeds. The cultivar fruits Geada were irradiated with doses that varied from 0 to 150 Gy, maintained for 15 days at room temperature (20 a 35 deg C and humidity of 70 - 80 %) and 30 days at a temperature of 10 deg C, humidity of 40 - 60 %. The chemical-physics and sensorial analyses were carried out. According to the obtained results, it was verified that the lethal dose of gamma radiation to S. catenifer eggs, was of 75 Gy; for caterpillars and pupas was of 300 Gy. The sterile-dose for upcoming adults from irradiated S. catenifer eggs was of 25 Gy; for upcoming adults from irradiated caterpillars, it was of 100 Gy; for adults coming from irradiated pupas was of 150 Gy and for irradiated adults was of 200 Gy. The irradiation in the avocado fruit, maintained at room temperature for 7 days of storage, caused change in the coloration of the fruit (dark spots and yellowish coloration) and more firmness. The sensorial characteristics were kept and the irradiated fruit was the chosen one as favorite for tasting. The irradiated fruits that were kept at 10 deg C, obtained an increase in the storage period, without changing their chemical physics characteristics. The coloration of the fruits was kept, more firmness and a subtle acidity taste increase, being effective in the conservation of the fruits and in the maintenance of their sensorial characteristics. The use of the gamma radiation as treatment quarantine of S. catenifer it was efficient, should be treated them with

  7. Feeding preference of Diabrotica speciosa (Ger. (Coleoptera: Chrysomelidae by broccoli leaves from natural, organic and conventional farming systems/ Preferência alimentar de Diabrotica speciosa (Ger. (Coleoptera: Chrysomelidae por folhas de brócolos cultivado em sistema natural, orgânico e convencional

    Directory of Open Access Journals (Sweden)

    Pedro Manuel O. J. Neves

    2006-06-01

    Full Text Available Multiple-choice laboratory tests were achieved to compare feeding preference of Diabrotica speciosa (Ger. to leaves of broccoli (Brassica oleraceae L. var. italica from natural, conventional and organic farming systems. Natural farming systems included incorporation of the elephant grass Pennisetum purpureum Schumacher cv. Napier (50 ton/ha, Bokashi compost (1.5 ton/ha and spray of EM 4 (Natural 1, or the incorporation of the Bokashi compost (1.5 ton /ha and spray of EM 4 (Natural 2, and in the conventional, NPK + borax were incorporated in the planting + dressing N and organic compost (1 kg/ plant was incorporated in the organic system. Organic compost was prepared using crop residues of corn (Zea mays L., soybean [Glycine max (L. Mer.], and cattle manure. Leaf discs were collected and placed in cages in multiple-choice tests. Beetles preferred mostly broccoli leaves from conventional farming system than leaves from Natural (1 and 2 and Organic farming systems. Feeding on leaves from Natural 1, Natural 2 and Organic farming system were 68, 67 and 57% of the feeding on leaves from Conventional farming system.Testes de múltipla escola foram realizados para comparar a preferência alimentar de Diabrotica speciosa (Ger. por folhas de brócolos (Brassica oleraceae L. var. italica cultivado em sistema natural, convencional e orgânico. No sistema natural de cultivo houve a incorporação de capim elefante Pennisetum purpureum Schumacher cv. Napier (50 ton/ha, composto Bokashi (1,5 ton/ha e pulverização de EM 4 (Natural 1, ou a incorporação do composto Bokashi (1,5 ton/ha e pulverização do EM 4 (Natural 2, no sistema convencional houve a incorporação do NPK + borax + N em cobertura, e no sistema orgânico incorporouse composto orgânico (1 kg/planta. O composto orgânico foi preparado utilizando-se resíduos de milho (Zea mays L. e soja [Glycine max (L. Mer.] e esterco de gado. Folhas foram retiradas das plantas das quais foram separados

  8. Micorriza arbuscular em cupuaçu e pupunha cultivados em sistema agroflorestal e em monocultivo na Amazônia Central Arbuscular mycorrhiza in cupuaçu and peach palm cultivated in agroforestry and monoculture systems in the Central Amazon region

    Directory of Open Access Journals (Sweden)

    José Pereira da Silva Junior

    2006-05-01

    Full Text Available O objetivo deste trabalho foi avaliar a colonização micorrízica arbuscular em pupunha (Bactris gasipaes Kunth e cupuaçu (Theobroma grandiflorum (Willd ex Spring K. Schum cultivados em sistema agroflorestal e em monocultivo na Amazônia Central, em duas épocas do ano, e também identificar características anatômicas da formação dessa simbiose nessas espécies. Foram realizadas coletas de solo e raízes em duas estações, seca e chuvosa. A colonização micorrízica arbuscular no cupuaçu e na pupunha é alterada pelo sistema de manejo adotado, com taxas maiores de colonização no monocultivo. A densidade total dos esporos de fungos micorrízicos arbusculares sob o cupuaçu não é alterada pelo sistema de manejo ou pela época do ano, ao contrário do que ocorre sob a pupunha. Nessa cultura, a densidade de esporos foi maior sob sistema agroflorestal no período seco. A colonização micorrízica na pupunha apresenta dois padrões anatômicos, Paris e Arum, enquanto no cupuaçu ocorre o padrão Arum.The objective of this work was to evaluate the arbuscular mycorrhizal colonization in peach palm (Bactris gasipaes Kunth and cupuaçu (Theobroma grandiflorum (Willd ex Spring K. Schum, in agroforestry systems and monoculture in the Central Amazon region, and to identify anatomic characteristics of mycorrhizal colonization in these species. Soil and root samples were collected in the field, in the dry and rainy season. Mycorrhizal root colonization of cupuaçu and peach palm is affected by the management systems, with higher colonization rates in the monoculture system. Total spore density of the arbuscular mycorrhizal fungi under cupuaçu is not affected by management systems or season, but under peach palm this variation is season dependent. Mycorrhizal colonization of Arum and Paris types occur in peach palm, and only Arum type occurs in cupuaçu.

  9. Phytochemical Evaluation of Wild and Cultivated Pepper (Capsicum annuum L. and C. pubescens Ruiz & Pav. from Oaxaca, Mexico Evaluación Fitoquímica en Chile (Capsicum annuum L. and C. pubescens Ruiz & Pav. Silvestre y Cultivado en Oaxaca, México

    Directory of Open Access Journals (Sweden)

    Araceli Minerva Vera-Guzmán

    2011-12-01

    Full Text Available Reports of the last decade show that some types of food and spices included in the human diet, such as pepper (Capsicum annuum L. can have a positive effect on human health. The Mexican pepper germplasm is poorly documented with regard to variety and the amount of phytochemical compounds that it contains. In the present study, the variation of phytochemical compounds was evaluated in nine fruit variants (morphotypes of wild and cultivated pepper grown in Oaxaca. ANOVA detected significant differences among pepper morphotypes and ripeness stages of fruits; vitamin C, total phenols, flavonoids, P-carotene, coordinated chromatic of color, and capsaicinoids. The highest values of vitamin C were found in 'Tabaquero', 'Guero' and 'Costeño' morphotypes (151.6 to 183.2 mg 100 g-1. With regard to total phenols and flavonoids, 'Piquín' and 'Solterito' had the highest levels. Coordinates of color a* and b*, and chroma presented a positive correlation with phenol and flavonoid contents. The evaluated morphotypes differed in capsaicin and dihydrocapsaicin; C. annuum had higher capsaicin content (4.9 to 142 /En la última década, se reportó que el consumo de ciertos alimentos y especias, como el chile (Capsicum annuum L., pueden tener un efecto positivo en la salud. Particularmente, los acervos genéticos mexicanos de chile están poco documentados en relación a la diversidad desde la perspectiva fitoquímica. En este trabajo se evaluó la variación de compuestos fitoquímicos en nueve morfotipos de chile silvestres y cultivados de Oaxaca. El ANDEVA detectó diferencias significativas entre morfotipos y estados de madurez en vitamina C, fenoles, flavonoides, P-caroteno, color, y capsaicinoides. Los valores más altos de vitamina C se determinaron en 'Tabaquero', 'Guero' y 'Costeño' (151.6 a 183.2 mg 100 g-1. En fenoles y flavonoides sobresalieron los tipos 'Piquin' y 'Solterito'. Las coordenadas cromáticas a* y b*, y los tonos (C* se correlacionaron

  10. Toxigenic fungi in beans (Phaseolus vulgaris L. classes black and color cultivated in the State of Santa Catarina, Brazil Fungos toxigênicos em feijão (Phaseolus vulgaris L. classes preto e cores cultivado no Estado de Santa Catarina, Brasil

    Directory of Open Access Journals (Sweden)

    Léa Luzia Freitas Costa

    2002-06-01

    Full Text Available Toxigenic fungi were studied in beans (Phaseolus vulgaris L. of Classes black and color, cultivated in different regions of the State of Santa Catarina, south region of Brazil. The mean counts of filamentous fungi were 2.8 x 103 and 6.7 x 103 CFU/g for beans Classes black and color, respectively. Penicillium spp., Aspergillus spp. and Phoma spp. were the most frequent genera isolated, followed by Ryzopus spp., Alternaria spp., Helminthosporium spp., Cladosporium spp., Botrytis spp., Fusarium spp., Trichoderma spp., Curvularia spp. and Dreschelera spp. Among beans Class black, 24.6% of the Aspergillus strains produced mycotoxins: 13.1% produced aflatoxins (AFs; 11.5% produced ochratoxin A (OTA and 28.9% of Penicillium produced citrinin (CTR. On the other hand, 22.1% of Aspergillus strains isolated from beans Class color produced mycotoxins (16.7% produced AFs and 5.4% produced OTA, while Penicillium genera had 35.4% of CTR producing strains. The toxigenic species were A. flavus, A. parasiticus, A. ochraceus and P. citrinum Thom.Foram estudados fungos toxigênicos em feijão (Phaseolus vulgaris L., classes preto e cores, cultivados em diferentes regiões do Estado de Santa Catarina, região Sul do Brasil. A média total de fungos filamentosos foi de 2,8x10³ e 6,7x10³ UFC/g para feijão classe preto e cores, respectivamente. Penicillium spp., Aspergillus spp. e Phoma spp. foram os gêneros mais frequentes isolados, seguidos por Ryzopus spp., Alternaria spp., Helminthosporium spp., Cladosporium spp., Botrytis spp., Fusarium spp., Trichoderma spp., Curvularia spp. e Dreschelera spp. No feijão classe preto, 24,6% das cepas de Aspergillus isolados eram toxigenicas: 13.1% eram produtoras de aflatoxinas (AFs e 11,5% de ocratoxina A (OTA; e 28,9% de Penicillium produziram citrinina (CTR. Por outro lado, 22,1% de cepas de Aspergillus isolados do feijão classe cores, produziram micotoxinas (16,7% produziram AF e 5,4% produziram OTA, já do g

  11. Época de aplicação de nitrogênio no milho cultivado em sucessão à aveia preta no sistema plantio direto Time of nitrogen application in no-tillage corn crop planted over black oats

    Directory of Open Access Journals (Sweden)

    Volnei Pauletti

    2000-08-01

    Full Text Available Este trabalho teve como objetivo avaliar o efeito de épocas de aplicação de N sobre parâmetros de rendimento de milho, cultivado em sucessão à aveia preta em plantio direto. Os experimentos foram conduzidos no ano agrícola de 1996/97 em três campos demonstrativos e experimentais pertencentes à Fundação ABC, nos Campos Gerais do Paraná. O delineamento experimental foi de blocos ao acaso com parcelas subdivididas, sendo nas parcelas a adubação na aveia (O e 30kg há-1 de N na semeadura e nas subparcelas, as épocas de aplicação do N no milho (sem N: 30kg há-1 na semeadura + 90kg há-1 em cobertura na 6° folha: 90kg há-1 no manejo da aveia + 30kg há-1 na semeadura e; J20kg há-1 no manejo da aveia + 30kg há-1 na semeadura. Verificou-se que a adubação da aveia não influenciou o rendimento do milho. O rendimento de grãos de milho não foi afetado pela aplicação antecipada do N, normalmente utilizado em cobertura no milho.This paper has as main goal the evaluation of lhe effect of nitrogen application on the yield of no tillage com crop, planted over black oats. Experiments were conducted m the agricultural year of 1996/97 in three experimental units of the ABC Foundation located in the Campos Gerais Region of the state of Paraná. The experimental design was a split-plot randomized block, being the plot treatments the two doses of N applied to the oats crop (O and 30kg há-1 in the planting time as the main plots and as the time of application of N in the com crop (no nitrogen; 30kg há-1 in the planting plus 90kg há-1 broadcasting in the 6a leaf time; 90kg há-1 during the oats crop management plus 30kg há-1 in the com planting; and 120kg há-1 during the oats crop management plus 30kg há-1 in the com planting as split plot treatments. It was verified the oats crop fertilization dia not influenced com yield. The com yield was not affected by anticipated N application usually used in corn's broadcasting.

  12. Análise espacial de atributos físicos e carbono orgânico em argissolo vermelho-amarelo cultivado com cana-de-açúcar Spatial analysis of physical attributes and organic carbon from yellow-red alfissol with sugarcane crop

    Directory of Open Access Journals (Sweden)

    Joedna Silva Cruz

    2010-04-01

    Full Text Available A agricultura convencional utiliza o solo intensivamente, modificando os seus atributos. Neste estudo, objetivou-se avaliar a variabilidade espacial de alguns atributos físicos e carbono orgânico do solo em um Argissolo Vermelho-Amarelo cultivado com cana-de-açúcar, usando geoestatística. O trabalho foi realizado em Maracanaú - CE, em uma área de produção de cana-de-açúcar, manejado mediante preparo conservacionista sobre uma cobertura de palhada de cana-de-açúcar. As amostras de solo foram retiradas de uma profundidade de 0,00 - 0,20 m, em uma malha, com intervalo regular de 10 m, totalizando 100 pontos. Em cada amostra, foi analisado densidade de partículas, densidade do solo, carbono orgânico, porosidade total, macroposidade e microposidade. O coeficiente de variação indicou variabilidade baixa para densidade de partículas, densidade do solo e porosidade total e média para as variáveis macroporosidade, microporosidade e carbono orgânico. As variáveis analisadas mostraram dependência espacial, a qual foi observada nos mapas de krigagem. A distribuição de poros por tamanho e a porosidade total indicam condições físicas razoavelmente boas, embora com valores de densidade do solo ligeiramente acima do nível considerado adequado para a classe textural do solo.Conventional farming uses the soil intensively, modifying its attributes. The goal of this study is to evaluate the spatial variability of some physical attributes and soil organic carbon in red-yellow Anfissol cultivated with sugar cane, using geostatistics. The work was carried out at Maracanaú - CE, in area with sugar cane production, managed by conservation tillage practices five years ago, which remained covered with sugarcane straw mulch. Soil samples were taken from 0.00 to 0.20 m de pth, in a mesh, with a regular interval of 10 m, totaling 100 points. For each sample, soil particle density, bulk density, organic carbon, porosity, macro pores, and micro

  13. Climate variations in greenhouse cultivated with gerbera and relationship with external conditions Variações meteorológicas em ambiente protegido cultivado com gérberas e suas relações com as condições externas

    Directory of Open Access Journals (Sweden)

    Aderson S. de Andrade Júnior

    2011-10-01

    Full Text Available Black meshes used in greenhouses provide shade to plants, affecting photosynthesis and presenting certain properties that change the microclimatic conditions in these environments. The objective of this study was to evaluate the variation in climate elements in greenhouse cultivated with gerbera (Gerbera jamesonii, Vr. Rambo in relation to external conditions and the reference evapotranspiration (ETo at Teresina, State of Piauí, Brazil. The measurements were obtained from July to October 2007 by an automatic data acquisition system installed inside and outside the greenhouse. The global solar radiation, evapotranspiration, precipitation, temperature, relative humidity, and wind speed were estimated. The results showed that major effect of the shading occurred on the mean air temperature during the 120 days, making it higher than the external environment. Inside the greenhouse, mean values of relative air humidity, reference evapotranspiração, global solar radiation and wind speed were lower compared to those outside the greenhouse.Os ambientes protegidos cobertos com malha negra fornecem sombreamento às plantas, têm forte influência no processo da fotossíntese e possuem propriedades particulares que interferem nas condições micrometeorológicas desses ambientes. Objetivou-se, neste trabalho, avaliar os elementos meteorológicos no interior do ambiente protegido cultivado com gérbera (Gerbera jamesonii, Vr. Rambo em relação ao ambiente externo e na evapotranspiração de referência (ETo, a qual foi correlacionada às variáveis ambientais em Teresina-PI. No período de julho a outubro de 2007, os elementos meteorológicos foram obtidos por um sistema de aquisição de dados automático instalado no interior do ambiente protegido e externamente. Estimaram-se a radiação solar global, temperatura, umidade relativa do ar, evapotranspiração de referência, precipitação e velocidade do ar. Os resultados mostraram que o maior efeito

  14. Ovacık Dağı yöresinde (Antalya) Türk Kekiği (Origanum onites L.) ve Büyük Çiçekli Adaçayı (Salvia tomentosa Miller) türlerinin ekolojik özellikleri

    OpenAIRE

    Serkan Özdemir; Kürşad Özkan

    2016-01-01

    Ovacık Dağı yöresinde (Antalya) Türk Kekiği (Origanum onites L.) ve Büyük Çiçekli Adaçayı (Salvia tomentosa Miller) türlerinin ekolojik özellikleriÖzet: Bu çalışma Ovacık Dağı Yöresi ‘nde Origanum onites L. (Türk kekiği) ve Salvia tomentosa Miller (Büyük çiçekli adaçayı) türlerinin potansiyel dağılımında etkili olan faktörleri belirlemek amacıyla yapılmıştır. Çalışmada 92 ana örnek alan, her bir alanda da 9 alt örnek alan olmak üzere 828 örnek alandan veriler toplanmıştır. Türlerin potansiyel...

  15. Lixiviação e volatilização de nitrogênio em um Argissolo cultivado com videira submetida à adubação nitrogenada Lixiviation and volatilization of nitrogen in Sandy Typic Hapludalf soil cultivated with grapevine submitted to the nitrogen fertilization

    Directory of Open Access Journals (Sweden)

    Felipe Lorensini

    2012-07-01

    Full Text Available O nitrogênio (N aplicado na superfície do solo em vinhedos pode ser perdido por volatilização ou lixiviação, sendo uma das possíveis explicações para o baixo aproveitamento de N pelas videiras. O trabalho objetivou avaliar as perdas de N por volatilização e lixiviação do N mineral em solo cultivado com videira submetida à adubação nitrogenada. Foram instalados dois experimentos em um vinhedo de Cabernet Sauvignon, em Rosário do Sul (RS, Brasil. No experimento 1, foram instalados lisímetros no solo que recebeu a aplicação de 0, 40, 80 e 120kg de N ha-1 ano-1 na forma de ureia e, durante o período de agosto a dezembro de 2009, foi coletada a solução do solo para a análise de N mineral. No experimento 2, foram instaladas câmaras coletoras no solo que recebeu, em agosto de 2010, a aplicação de 0, 20, 40, e 80kg de N ha-1 ano-1 na forma de ureia, 40kg de N ha-1 ano-1 de composto orgânico e 40kg de N ha-1 ano-1 de ureia revestida com polímeros, para avaliar a volatilização de N-NH3 do momento da aplicação até 80 horas depois da aplicação. As maiores concentrações de nitrogênio mineral na solução lixiviada foram encontradas nas doses mais elevadas de fertilizante mineral aplicado e ao longo da brotação e florescimento das videiras, o que pode diminuir o aproveitamento do nutriente pelas plantas. Os maiores fluxos e perdas de amônia do solo cultivado com videira para a atmosfera aconteceram nas doses mais elevadas de nitrogênio mineral aplicado, especialmente, depois de 44 horas da sua aplicação sobre a superfície do solo. A aplicação de ureia revestida com polímeros e composto orgânico promoveram as menores perdas de amônia por volatilização, o que pode estimular o aproveitamento de nitrogênio pelas videiras.Nitrogen (N applied in vineyards may be lost through volatilization or lixiviation. Two experiments were carried out to evaluate the N losses through volatilization or lixiviation in vineyard

  16. New flavonoids from bioactive extract of Algerian medicinal plant Launeae arborescens

    Institute of Scientific and Technical Information of China (English)

    Khaled Sekkoum; Nasser Belboukhari; Abdelkrim Cheriti

    2014-01-01

    Objective: To investigate the butanol fraction of the water/acetone extract and isolate of the new flavonoids from Launeae arboescens. Methods:The compounds were isolated by liquid chromatographic methods and their structures were identified by using spectroscopic analysis. Results:The isolated compounds were identified as: 7-O-[α-rhamnopyranosyl 4',5,6-Trihydroxy flavone 1,4’,5’-Di-Methoxy 7-(5’’-Me Hexan)1-oyl flavanone 2, 3”-isopropyl pyrano [1”:7,4”:6] 3’,4’,5’,5-Tetrahydroxy flavanone 3,5,4’,5’-Tri-Hydroxy 7-(3’’-Me butan) -yl flavanone 4, 5,7-Dihydroxy-2',4',5' –trimethoxy-isoflavanone 5,5,6,7,4'-tetrahydroxy flavonol 6,7-O-[α-rhamnopyranosyl-(1->6)-β-glucopyranosyl]- 4',5,7-tri-hydroxy-flavanone 7,7-O-[α-rhamnopyranosyl-(1->6)-β-glucopyranosyl] 3',5-Dihydroxy 4’-Methoxy flavanone 8. Conclusions:The presence of different types of bioactive flavonoids in Launeae arboescens extract can explain the large ethnopharmacological uses and the potential activity of this medicinal plant.

  17. Physiological effects of a novel aromatic cytokinin analogue in micropropagated Aloe arborescens and Harpagophytum procumbens

    Czech Academy of Sciences Publication Activity Database

    Amoo, S.O.; Aremu, A.O.; Moyo, M.; Szüčová, Lucie; Doležal, Karel; van Staden, J.

    2014-01-01

    Roč. 116, č. 1 (2014), s. 17-26. ISSN 0167-6857 R&D Projects: GA MŠk(CZ) LO1204 Grant ostatní: GA MŠk(CZ) ED0007/01/01 Institutional support: RVO:61389030 Keywords : Antioxidant * Chlorophyll * Medicinal plants Subject RIV: EB - Genetics ; Molecular Biology Impact factor: 2.125, year: 2014

  18. Determination of the polysaccharides contents in three aloe of Fujian province%闽产三种芦荟叶汁中多糖含量测定

    Institute of Scientific and Technical Information of China (English)

    包国荣; 陈建斌; 陈玉枝

    2001-01-01

    本文采用硫酸-酚比色法,于490nm波长测定斑芦荟(AIoe vera L.Var.chinensis (Haw)Berg)、库拉索芦荟(Aloe barbadensis miller)、以及木立芦荟(Aloe arborescens mill)叶汁中的多糖含量,结果表明:库拉索芦荟中的多糖含量较高,斑纹芦荟次之,木立芦荟最低.

  19. Alex Miller, Knesseti liige : Iisrael mõtleb oma kodanikele / Alex Miller ; interv. Ivar Soopan

    Index Scriptorium Estoniae

    Miller, Alex

    2007-01-01

    Iisraeli parlamendiliikme sõnul ei ole läbirääkimised Palestiinaga vastuvõetavad, kui valitsuses on Hamas. Iisraeli-Palestiina konflikt ei ole tema sõnul mitte territoriaalprobleem, vaid tsivilisatsioonidevaheline konflikt. Parlamendiliige vastab küsimustele, mis puudutavad Palestiinale kuuluva 600 miljoni dollari maksuraha kinnihoidmist ning 40 Palestiina parlamendiliikme vangistamist, samuti Liibanoni ründamist eelmisel aastal

  20. Atributos físicos e teor de matéria orgânica na camada superficial de um argissolo vermelho cultivado com mandioca sob diferentes manejos Physical properties and organic matter content of an ultisol cultivated with cassava under different managements

    Directory of Open Access Journals (Sweden)

    Rogério Ferreira da Silva

    2008-12-01

    Full Text Available A manutenção e a melhoria da qualidade do solo são determinantes para a estabilidade, sustentabilidade e produtividade de ecossistemas naturais e de agroecossistemas. A compreensão e a quantificação do impacto dos sistemas de preparo do solo na sua qualidade física são fundamentais no desenvolvimento de sistemas agrícolas sustentáveis. O objetivo deste trabalho foi avaliar os efeitos do sistema convencional de preparo do solo e do sistema plantio direto, associado ao uso de diferentes plantas de cobertura, nas propriedades físicas e no teor de matéria orgânica de um solo cultivado com mandioca. O estudo foi realizado no município de Glória de Dourados, MS, num Argissolo Vermelho textura arenosa. Foram estudados o sistema convencional de preparo do solo (SC, o plantio direto sobre resíduos culturais de mucuna (PDMu, sorgo (PDSo e milheto (PDMi e a vegetação nativa (VN como área-referência. As avaliações foram realizadas em maio de 2003 (após o plantio da mandioca e agosto de 2004. Os teores de matéria orgânica foram semelhantes entre os diferentes sistemas de manejo. Os efeitos dos sistemas nas propriedades físicas do solo foram verificados apenas na fase inicial do estabelecimento da cultura. A maior estabilidade dos agregados ocorreu em sistemas de cultivo que utilizaram gramíneas como plantas de cobertura. O sistema convencional apresentou menor densidade e maior porosidade total do solo, especialmente na macroposidade, quando comparado aos valores verificados nos sistemas plantio direto com uso de plantas de cobertura.The maintenance and improvement of soil quality are crucial to the stability, sustainability and productivity of natural ecosystems and agroecosystems. The understanding and quantification of the impact of tillage systems in their physical quality are fundamental in the development of sustainable agricultural systems. This study was carried out to evaluate the effects of management practices on