Sample records for tertiary t-r transitions

  1. Spontaneous quaternary and tertiary T-R transitions of human hemoglobin in molecular dynamics simulation.

    Directory of Open Access Journals (Sweden)

    Jochen S Hub


    Full Text Available We present molecular dynamics simulations of unliganded human hemoglobin (Hb A under physiological conditions, starting from the R, R2, and T state. The simulations were carried out with protonated and deprotonated HC3 histidines His(beta146, and they sum up to a total length of 5.6 micros. We observe spontaneous and reproducible T-->R quaternary transitions of the Hb tetramer and tertiary transitions of the alpha and beta subunits, as detected from principal component projections, from an RMSD measure, and from rigid body rotation analysis. The simulations reveal a marked asymmetry between the alpha and beta subunits. Using the mutual information as correlation measure, we find that the beta subunits are substantially more strongly linked to the quaternary transition than the alpha subunits. In addition, the tertiary populations of the alpha and beta subunits differ substantially, with the beta subunits showing a tendency towards R, and the alpha subunits showing a tendency towards T. Based on the simulation results, we present a transition pathway for coupled quaternary and tertiary transitions between the R and T conformations of Hb.

  2. T R Venkatesan

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Earth System Science. T R Venkatesan. Articles written in Journal of Earth System Science. Volume 109 Issue 1 March 2000 pp 39-47. Emplacement of Amba Dongar Carbonatite-alkaline Complex at Cretaceous/Tertiary Boundary: Evidence from 40Ar-39Ar Chronology · Jyotiranjan S Ray ...

  3. T R Shankar Raman

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education. T R Shankar Raman. Articles written in Resonance – Journal of Science Education. Volume 1 Issue 7 July 1996 pp 52-61 Feature Article. Nature Watch - A Horde of Indian Deer · T R Shankar Raman · More Details Fulltext PDF. Volume 1 Issue 9 September 1996 ...

  4. T R Seshadri

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education. T R Seshadri. Articles written in Resonance – Journal of Science Education. Volume 7 Issue 2 February 2002 pp 6-19 General Article. Fractals and the Large-Scale Structure in the Universe - Introduction and Basic Concepts · A K Mittal T R Seshadri.

  5. t r gulati

    Indian Academy of Sciences (India)

    Home; Journals; Sadhana. T R GULATI. Articles written in Sadhana. Volume 41 Issue 5 May 2016 pp 531-539. Uncertain multi-objective multi-product solid transportation problems · DEEPIKA RANI T R GULATI · More Details Abstract Fulltext PDF. The solid transportation problem is an important generalization of the ...

  6. T R Madanmohan

    Indian Academy of Sciences (India)

    Home; Journals; Sadhana. T R Madanmohan. Articles written in Sadhana. Volume 30 Issue 2-3 April-June 2005 pp 431-444. Successful e-marketplaces: An institutional perspective · T R Madanmohan · More Details Abstract Fulltext PDF. Since their inception, e-marketplaces have witnessed a major shakeout and have ...

  7. T R Gulati

    Indian Academy of Sciences (India)

    Home; Journals; Sadhana. T R Gulati. Articles written in Sadhana. Volume 39 Issue 3 June 2014 pp 573-581. A method for unbalanced transportation problems in fuzzy environment · Deepika Rani T R Gulati Amit Kumar · More Details Abstract Fulltext PDF. In this paper, we consider the fully fuzzy unbalanced transportation ...

  8. Transition and Tertiary Education: A Case Study of Mzuzu University, Malawi (United States)

    Zozie, Paxton Andrew; Kayira, Peter Benwell


    This article reviews the role of guidance and counselling in Malawi in reducing dropout and easing the transition of students to tertiary education, as well as in helping them during their time in tertiary education. It begins by identifying key success factors in guidance and counselling services for learners in both developed and developing…

  9. The Secondary-Tertiary Transition Viewed as a Change in Mathematical Cultures: An Exploration Concerning Symbolism and Its Use (United States)

    Corriveau, Claudia; Bednarz, Nadine


    Secondary-tertiary transition issues are explored from the perspective of ways of doing mathematics that are constituted in the implicit aspects of teachers' action. Theories of culture (Hall, 1959) and ethnomethodology (Garfinkel, 1967) provide us with a basis for describing and explicating the ways of doing mathematics specific to each teaching…

  10. Tertiary-amine-containing thermo- and pH-sensitive hydrophilic ABA triblock copolymers: effect of different tertiary amines on thermally induced sol-gel transitions. (United States)

    Henn, Daniel M; Wright, Roger A E; Woodcock, Jeremiah W; Hu, Bin; Zhao, Bin


    This Article reports on the synthesis of a series of well-defined, tertiary-amine-containing ABA triblock copolymers, composed of a poly(ethylene oxide) (PEO) central block and thermo- and pH-sensitive outer blocks, and the study of the effect of different tertiary amines on thermally induced sol-gel transition temperatures (T(sol-gel)) of their 10 wt % aqueous solutions. The doubly responsive ABA triblock copolymers were prepared from a difunctional PEO macroinitiator by atom transfer radical polymerization of methoxydi(ethylene glycol) methacrylate and ethoxydi(ethylene glycol) methacrylate at a feed molar ratio of 30:70 with ∼5 mol % of either N,N-diethylaminoethyl methacrylate (DEAEMA), N,N-diisopropylaminoethyl methacrylate, or N,N-di(n-butyl)aminoethyl methacrylate. The chain lengths of thermosensitive outer blocks and the molar contents of tertiary amines were very similar for all copolymers. Using rheological measurements, we determined the pH dependences of T(sol-gel) of 10 wt % aqueous solutions of these copolymers in a phosphate buffer. The T(sol-gel) versus pH curves of all polymers exhibited a sigmoidal shape. The T(sol-gel) increased with decreasing pH; the changes were small on both high and low pH sides. At a specific pH, the T(sol-gel) decreased with increasing the hydrophobicity of the tertiary amine, and upon decreasing pH the onset pH value for the T(sol-gel) to begin to increase noticeably was lower for the more hydrophobic tertiary amine-containing copolymer. In addition, we studied the effect of different tertiary amines on the release behavior of FITC-dextran from 10 wt % micellar gels in an acidic medium at 37 and 27 °C. The release profiles for three studied hydrogels at 37 °C were essentially the same, suggesting that the release was dominated by the diffusion of FITC-dextran. At 27 °C, the release was significantly faster for the DEAEMA-containing copolymer, indicating that both diffusion and gel dissolution contributed to the

  11. Improving mental health service users' with medical co-morbidity transition between tertiary medical hospital and primary care services: a qualitative study. (United States)

    Cranwell, Kate; Polacsek, Meg; McCann, Terence V


    Mental health service users have high rates of medical co-morbidity but frequently experience problems accessing and transitioning between tertiary medical and primary care services. The aim of this study was to identify ways to improve service users' with medical co-morbidity care and experience during their transition between tertiary medical hospitals and primary care services. Experience-based co-design (EBCD) qualitative study incorporating a focus group discussion. The study took place in a large tertiary medical service, incorporating three medical hospitals, and primary care services, in Melbourne, Australia. A purposive sample of service users and their caregivers and tertiary medical and primary care clinicians participated in the focus group discussion, in August 2014. A semi-structured interview guide was used to inform data collection. A thematic analysis of the data was undertaken. Thirteen participants took part in the focus group interview, comprising 5 service users, 2 caregivers and 6 clinicians. Five themes were abstracted from the data, illustrating participants' perspectives about factors that facilitated (clinicians' expertise, engagement and accessibility enhancing transition) and presented as barriers (improving access pathways; enhancing communication and continuity of care; improving clinicians' attitudes; and increasing caregiver participation) to service users' progress through tertiary medical and primary care services. A sixth theme, enhancing service users' transition, incorporated three strategies to enhance their transition through tertiary medical and primary care services. EBCD is a useful approach to collaboratively develop strategies to improve service users' with medical co-morbidity and their caregivers' transition between tertiary medical and primary care services. A whole-of-service approach, incorporating policy development and implementation, change of practice philosophy, professional development education and support for

  12. Indigenous Tutorial Assistance Scheme. Tertiary Tuition and Beyond: Transitioning with Strengths and Promoting Opportunities (United States)

    Wilks, Judith; Fleeton, Ellen Radnidge; Wilson, Katie


    The Indigenous Tutorial Assistance Scheme-Tertiary Tuition (ITAS-TT) has provided Australian government funding for one-to-one and group tutorial study support for Aboriginal and Torres Strait Islander students attending Australian universities since 1989. It has been a central plank supporting Indigenous university students in their studies.…

  13. CaLD nurses transition to Australian tertiary hospital practice: Exposing the reality--A mixed methods study. (United States)

    Holmes, Tina; Grech, Carol


    To investigate CaLD nurses' transition into the Australian workforce over the first 3 months of employment in tertiary hospitals. Descriptive mixed method design, informed by the critical paradigm. Survey questionnaire and a focus group were used for data collection. The existence of a specific hospital orientation program was identified as a crucial factor in participants' successful transition. Without a hospital based orientation program participants were more likely to experience failure to 'fit in'. This led to maladaptive behaviors where they did not actively seek, support or question practice through fear of drawing increased attention to themselves. WORKPLACE IMPLICATIONS: Results from the study raise serious implications for workplace safety of both the CaLD nurses and the patients they nurse. Government and health administrators need to invest in providing specific hospital orientation programs that support CaLD nurses' transition. The development of such hospital orientation programs need to be developed as to the specific learning requirements of these nurses or risk exposing them to maladaptive behaviors and potential adverse events as a result of this learned behavior.

  14. L and P Band MMIC T/R Module Project (United States)

    National Aeronautics and Space Administration — This proposal is specifically written to address the need for improved L and P band T/R modules for use in active microwave surveillance of earth surface and...

  15. Ka-Band MMIC T/R Module Project (United States)

    National Aeronautics and Space Administration — This Phase II proposal is presented as the follow on to the Phase I SBIR contract number NNC06CB21C entitled "Ka-band MMIC T/R Module" For active microwave...

  16. L and P Band MMIC T/R Module Project (United States)

    National Aeronautics and Space Administration — This proposal is specifically written to address the need for improved L and P band T/R modules. The solicitation calls for investigation and development of core...

  17. Ka-Band MMIC T/R Module Project (United States)

    National Aeronautics and Space Administration — This proposal is specifically written to address the need for improved Ka-band T/R modules. The solicitation calls for investigation and development of core...

  18. Geochemistry of the Cretaceous-Tertiary transition boundary at Blake Nose (N.W. Atlantic: Cosmogenic Ni

    Directory of Open Access Journals (Sweden)



    Full Text Available The Cretaceous-Tertiary (KT boundary transition at the Blake Nose Plateau recovered by ODP Leg 171B (site 1049, hole A, core 17X, section 2 contains an ejecta bed (thickness ca. 17 cm marking a late Cretaceous asteroid impact. The nature and geochemical composition of this bed imply that it originated mainly from the target rocks of the Chicxulub impact site (Yucatan Peninsula, Mexico, the site of the presumed asteroid impact. The ejecta bed of hole 1049A contains relatively high concentrations of Ni (up to 165 ppm within the carbonate fraction. It is reasoned that this enhancement represents a sudden and rapid airfall of high cosmogenic Ni into he Blake Nose Basin. The source of the metal was the Chicxulub impacting (carbonaceous chondrite. It is suggested that many calcareous planktons in the KT ocean surface water of the Blake Nose Plateau were probably vulnerable to the high influx of superacid rainfall and associated toxic metals (e.g., Ni created by the impact.

  19. Integrated L-Band T/R Module Project (United States)

    National Aeronautics and Space Administration — The goal of this Phase II project is to deliver an integrated L-band transmit/receive (T/R) module which will be fabricated from a GaAs-based combined HBT/PHEMT...

  20. 150 K. Visweswara Rao and T. R. Seshadri

    Indian Academy of Sciences (India)

    150 K. Visweswara Rao and T. R. Seshadri was then effected under ordinary pressure up to a temperature of 240°. It was connected again to the pump and the distillation carried out at a pressure of 40 mm. Three fractions were collected: (1) below 160", (2) 160—70“ and (3) 17045". The last fraction corresponded to ...

  1. T R Seshadri's Contributions to the Chemistry of Natural Products

    Indian Academy of Sciences (India)

    Seshadri developed many reagents and synthetic proce- dures which he used for elucidation and synthesis of natural products, in particular flavonoids. Introduction. It is by no means easy to bring under the confines of an article the research output of someone like T R Seshadri whose scien- tific studies spanned nearly half ...

  2. Page 1 358 K. Neelakantam and T. R. Seshadri Herbacetin ...

    Indian Academy of Sciences (India)

    358 K. Neelakantam and T. R. Seshadri. Herbacetin Quercetin. 1. Melting point a 4 a 8 O 280-33 30-2. 2. Melting point of acetyl derivative . . 192-93 97-98. 3. ... o CO. This was confirmed by the oxidation of the glucoside by air in aqueous alkaline solution whereby p-hydroxy-benzoic acid was produced and isolated after.

  3. [A serial killer as exemplified by T. R. Bundy]. (United States)

    Gałeska-Sliwka, Anita


    The question of serial homicides and their perpetrators poses a considerable problem of both a definitional and practical nature. T R. Bundy is the first perpetrator who was officially termed a "serial killer". Since that time, this concept has been commonly used and sometimes even overused, e.g. in reference to mass murderers. However, the definitions established for Bundy's case have been preserved and continue to be used in practice.

  4. The Concept of Learning Japanese: Explaining Why Successful Students of Japanese Discontinue Japanese Studies at the Transition to Tertiary Education (United States)

    Oshima, Ryoko; Harvey, Sharon


    Student attrition and falling tertiary education enrolments afflict languages education across the "inner circle" English speaking world. In the southern hemisphere, in New Zealand and Australia, Japanese has become one of the most successful languages of education. However, numbers of students are now declining. This paper examines why…

  5. Improving care planning and coordination for service users with medical co-morbidity transitioning between tertiary medical and primary care services. (United States)

    Cranwell, K; Polacsek, M; McCann, T V


    WHAT IS KNOWN ON THE SUBJECT?: Mental health service users with medical co-morbidity frequently experience difficulties accessing and receiving appropriate treatment in emergency departments. Service users frequently experience fragmented care planning and coordinating between tertiary medical and primary care services. Little is known about mental health nurses' perspectives about how to address these problems. WHAT THIS PAPER ADDS TO EXISTING KNOWLEDGE?: Emergency department clinicians' poor communication and negative attitudes have adverse effects on service users and the quality of care they receive. The findings contribute to the international evidence about mental health nurses' perspectives of service users feeling confused and frustrated in this situation, and improving coordination and continuity of care, facilitating transitions and increasing family and caregiver participation. Intervention studies are needed to evaluate if adoption of these measures leads to sustainable improvements in care planning and coordination, and how service users with medical co-morbidity are treated in emergency departments in particular. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: Effective planning and coordination of care are essential to enable smooth transitions between tertiary medical (emergency departments in particular) and primary care services for service users with medical co-morbidity. Ongoing professional development education and support is needed for emergency department clinicians. There is also a need to develop an organized and systemic approach to improving service users' experience in emergency departments. Introduction Mental health service users with medical co-morbidity frequently experience difficulties accessing appropriate treatment in medical hospitals, and often there is poor collaboration within and between services. Little is known about mental health nurses' perspectives on how to address these problems. Aim To explore mental health nurses

  6. Synthesis of P1'-functionalized macrocyclic transition-state mimicking HIV-1 protease inhibitors encompassing a tertiary alcohol. (United States)

    De Rosa, Maria; Unge, Johan; Motwani, Hitesh V; Rosenquist, Åsa; Vrang, Lotta; Wallberg, Hans; Larhed, Mats


    Seven novel tertiary alcohol containing linear HIV-1 protease inhibitors (PIs), decorated at the para position of the benzyl group in the P1' side with (hetero)aromatic moieties, were synthesized and biologically evaluated. To study the inhibition and antiviral activity effect of P1-P3 macrocyclization, 14- and 15-membered macrocyclic PIs were prepared by ring-closing metathesis of the corresponding linear PIs. The macrocycles were more active than the linear precursors and compound 10f, with a 2-thiazolyl group in the P1' position, was the most potent PI of this new series (Ki 2.2 nM, EC50 0.2 μM). Co-crystallized complexes of both linear and macrocyclic PIs with the HIV-1 protease enzyme were prepared and analyzed.

  7. InGaP DHBT for High Efficiency L-band T/R Module Project (United States)

    National Aeronautics and Space Administration — A fully monolithically integrated L-band T/R module using InGaP/GaAs-based HBTs (heterojunction bipolar transistors) for both the transmit and receive functions is...

  8. Flexible T/R Modules for Large-Aperture, Space-Based SAR Project (United States)

    National Aeronautics and Space Administration — SI2 Technologies, Inc (SI2) proposes to develop membrane compatible transmit/receive (T/R) modules for flexible, space-deployable synthetic aperture radar (SAR)...

  9. High-efficiency L-band T/R Module: Development Results (United States)

    Edelstein, Wendy N.; Andricos, Constantine; Wang, Feiyu; Rutled, David B.


    Future interferometric synthetic aperture radar (InSAR) systems require electronically scanned phased-array antennas, where the transmit/receive (T/R) module is a key component. The T/R module efficiency is a critical figure of merit and has direct implications on the power dissipation and power generation requirements of the system. Significant improvements in the efficiency of the T/R module will make SAR missions more feasible and affordable. The results of two high-efficiency T/R modules are presented, each based on different power amplifier technologies. One module uses a 30W GaAs Class-AlB power amplifier and the second module uses a 70W LD-MOS Class-ElF power amplifier, where both modules use a common low power section. Each module operates over an 80MHz bandwidth at L-band (1.2GHz) with an overall module efficiency greater than 58%. We will present the results of these two T/R modules that have been designed, built and tested.

  10. Sugar-based tertiary amino gemini surfactants with a vesicle-to-micelle transition in the endosomal pH range mediate efficient transfection in vitro

    NARCIS (Netherlands)

    Fielden, Matthew; Perrin, C.; Kremer, Andreas; Bergsma, M.; Stuart, M.C.A.; Camilleri, P.; Engberts, J.B.F.N.


    Novel reduced sugar gemini amphiphiles linked through their tertiary amino head groups via alkyl spacers of 4 or 6 carbons, and with varying (unsaturated) alkyl tail lengths of 12-18, have been synthesized and tested for transfection in vitro in an adherent Chinese hamster ovary cell line (CHO-K1).

  11. Tertiary lymphoid tissue (United States)

    Di Caro, Giuseppe; Marchesi, Federica


    Tumor-infiltrating lymphocytes influence colorectal cancer progression. We have recently documented that tertiary lymphoid tissue in the colorectal cancer microenvironment orchestrates lymphocyte infiltration and that tertiary lymphoid tissue and lymphocytes cooperate in a coordinated antitumor immune response to improve patient outcome. Thus, tertiary lymphoid tissue represents a potential target in the design of tailored immune-based therapeutic approaches. PMID:25083321

  12. T/R Multi-Chip MMIC Modules for 150 GHz (United States)

    Samoska, Lorene A.; Pukala, David M.; Soria, Mary M.; Sadowy, Gregory A.


    Modules containing multiple monolithic microwave integrated-circuit (MMIC) chips have been built as prototypes of transmitting/receiving (T/R) modules for millimeter-wavelength radar systems, including phased-array radar systems to be used for diverse purposes that could include guidance and avoidance of hazards for landing spacecraft, imaging systems for detecting hidden weapons, and hazard-avoidance systems for automobiles. Whereas prior landing radar systems have operated at frequencies around 35 GHz, the integrated circuits in this module operate in a frequency band centered at about 150 GHz. The higher frequency (and, hence, shorter wavelength), is expected to make it possible to obtain finer spatial resolution while also using smaller antennas and thereby reducing the sizes and masses of the affected systems.

  13. Research on Fault Rate Prediction Method of T/R Component (United States)

    Hou, Xiaodong; Yang, Jiangping; Bi, Zengjun; Zhang, Yu


    T/R component is an important part of the large phased array radar antenna array, because of its large numbers, high fault rate, it has important significance for fault prediction. Aiming at the problems of traditional grey model GM(1,1) in practical operation, the discrete grey model is established based on the original model in this paper, and the optimization factor is introduced to optimize the background value, and the linear form of the prediction model is added, the improved discrete grey model of linear regression is proposed, finally, an example is simulated and compared with other models. The results show that the method proposed in this paper has higher accuracy and the solution is simple and the application scope is more extensive.


    Energy Technology Data Exchange (ETDEWEB)

    Ernest A. Mancini


    The principal research effort for Year 1 of the project has been T-R cycle characterization and modeling. The research focus for the first nine (9) months of Year 1 was on outcrop study, well log analysis, seismic interpretation and data integration and for the remainder of the year the emphasis has been on T-R cycle model development. Information regarding the characteristics of T-R cycles has been assembled from the study of outcrops, from well log analyses, and from seismic reflection interpretation. From these studies, stratal boundaries separating T-R cycles have been found to be useful for the recognition and delineation of these cycles. The key stratal surfaces include subaerial unconformities, shoreface ravinement surfaces, transgressive surfaces, surfaces of maximum regression, and surfaces of maximum transgression. These surfaces can be identified and mapped in surface exposures and can be recognized in well log signatures and seismic reflection profiles as discontinuities. The findings from the study of outcrop, well log, and seismic reflection data are being integrated into a database for use in constructing a model for T-R cycle development.

  15. T-R Cycle Characterization and Imaging: Advanced Diagnostic Methodology for Petroleum Reservoir and Trap Detection and Delineation

    Energy Technology Data Exchange (ETDEWEB)

    Ernest A. Mancini


    Characterization of stratigraphic sequences (T-R cycles or sequences) included outcrop studies, well log analysis and seismic reflection interpretation. These studies were performed by researchers at the University of Alabama, Wichita State University and McGill University. The outcrop, well log and seismic characterization studies were used to develop a depositional sequence model, a T-R cycle (sequence) model, and a sequence stratigraphy predictive model. The sequence stratigraphy predictive model developed in this study is based primarily on the modified T-R cycle (sequence) model. The T-R cycle (sequence) model using transgressive and regressive systems tracts and aggrading, backstepping, and infilling intervals or sections was found to be the most appropriate sequence stratigraphy model for the strata in the onshore interior salt basins of the Gulf of Mexico to improve petroleum stratigraphic trap and specific reservoir facies imaging, detection and delineation. The known petroleum reservoirs of the Mississippi Interior and North Louisiana Salt Basins were classified using T-R cycle (sequence) terminology. The transgressive backstepping reservoirs have been the most productive of oil, and the transgressive backstepping and regressive infilling reservoirs have been the most productive of gas. Exploration strategies were formulated using the sequence stratigraphy predictive model and the classification of the known petroleum reservoirs utilizing T-R cycle (sequence) terminology. The well log signatures and seismic reflector patterns were determined to be distinctive for the aggrading, backstepping and infilling sections of the T-R cycle (sequence) and as such, well log and seismic data are useful for recognizing and defining potential reservoir facies. The use of the sequence stratigraphy predictive model, in combination with the knowledge of how the distinctive characteristics of the T-R system tracts and their subdivisions are expressed in well log patterns

  16. Secondary and tertiary hyperparathyroidism. (United States)

    Jamal, Sophie A; Miller, Paul D


    We reviewed the etiology and management of secondary and tertiary hyperparathyroidism. Secondary hyperparathyroidism is characterized by an increase in parathyroid hormone (PTH) that is appropriate and in response to a stimulus, most commonly low serum calcium. In secondary hyperparathyroidism, the serum calcium is normal and the PTH level is elevated. Tertiary hyperparathyroidism is characterized by excessive secretion of PTH after longstanding secondary hyperparathyroidism, in which hypercalcemia has ensued. Tertiary hyperparathyroidism typically occurs in men and women with chronic kidney disease usually after kidney transplant. The etiology and treatment of secondary hyperparathyroidism is relatively straightforward whereas data on the management of tertiary hyperparathyroidism is limited to a few small trials with short follow-up. Copyright © 2013 The International Society for Clinical Densitometry. Published by Elsevier Inc. All rights reserved.

  17. 2. Tertiary Foraminifera

    NARCIS (Netherlands)

    Umbgrove, J.H.F.


    In his review of the palaeozoology of Java, K. Martin could in 1919, record 49 foraminifera from tertiary strata of Java, on the strength of a critical study of the existant literature, and especially on the strength of his own studies and knowledge of the above mentioned fossils (Bibl. 49). In

  18. T-R Cycle Characterization and Imaging: Advanced Diagnostic Methodology for Petroleum Reservoir and Trap Detection and Delineation

    Energy Technology Data Exchange (ETDEWEB)

    Ernest A. Mancini; William C. Parcell; Bruce S. Hart


    The principal research effort for Year 2 of the project is on stratigraphic model assessment and development. The research focus for the first six (6) months of Year 2 is on T-R cycle model development. The emphasis for the remainder of the year is on assessing the depositional model and developing and testing a sequence stratigraphy model. The development and testing of the sequence stratigraphy model has been accomplished through integrated outcrop, well log and seismic studies of Mesozoic strata in the Gulf of Mexico, North Atlantic and Rocky Mountain areas.

  19. Visibility of natural tertiary rainbows. (United States)

    Lee, Raymond L; Laven, Philip


    Naturally occurring tertiary rainbows are extraordinarily rare and only a handful of reliable sightings and photographs have been published. Indeed, tertiaries are sometimes assumed to be inherently invisible because of sun glare and strong forward scattering by raindrops. To analyze the natural tertiary's visibility, we use Lorenz-Mie theory, the Debye series, and a modified geometrical optics model (including both interference and nonspherical drops) to calculate the tertiary's (1) chromaticity gamuts, (2) luminance contrasts, and (3) color contrasts as seen against dark cloud backgrounds. Results from each model show that natural tertiaries are just visible for some unusual combinations of lighting conditions and raindrop size distributions.

  20. Benzoyl peroxide (BPO)-promoted oxidative trifluoromethylation of tertiary amines with trimethyl(trifluoromethyl)silane. (United States)

    Chu, Lingling; Qing, Feng-Ling


    The benzoyl peroxide (BPO)-promoted oxidative functionalization of tertiary amines under transition-metal-free reaction conditions was developed. Various 1-trifluoromethylated tetrahydroisoquinoline derivatives were prepared by employing this method. It constitutes the first example of direct trifluoromethylation of tertiary amines.

  1. X-band T/R switch with body-floating multi-gate PDSOI NMOS transistors (United States)

    Park, Mingyo; Min, Byung-Wook


    This paper presents an X-band transmit/receive switch using multi-gate NMOS transistors in a silicon-on-insulator CMOS process. For low loss and high power handling capability, floating body multi-gate NMOS transistors are adopted instead of conventional stacked NMOS transistors, resulting in 53% reduction of transistor area. Comparing to the stacked NMOS transistors, the multi gate transistor shares the source and drain region between stacked transistors, resulting in reduced chip area and parasitics. The impedance between bodies of gates in multi-gate NMOS transistors is assumed to be very large during design and confirmed after measurement. The measured input 1 dB compression point is 34 dBm. The measured insertion losses of TX and RX modes are respectively 1.7 dB and 2.0 dB at 11 GHz, and the measured isolations of TX and RX modes are >27 dB and >20 dB in X-band, respectively. The chip size is 0.086 mm2 without pads, which is 25% smaller than the T/R switch with stacked transistors.

  2. f(R,T,R{sub μν}T{sup μν}) gravity phenomenology and ΛCDM universe

    Energy Technology Data Exchange (ETDEWEB)

    Odintsov, Sergei D., E-mail: [Instituciò Catalana de Recerca i Estudis Avançats (ICREA), Barcelona (Spain); Institut de Ciències de l' Espai ICE (CSIC-IEEC), Campus UAB Facultat de Ciències, Torre C5-Parell-2a pl, E-08193 Bellaterra (Barcelona) (Spain); Sáez-Gómez, Diego, E-mail: [Astrophysics, Cosmology and Gravity Centre (ACGC) and Department of Mathematics and Applied Mathematics, University of Cape Town, Rondebosch 7701, Cape Town (South Africa); Fisika Teorikoaren eta Zientziaren Historia Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea, 644 Posta Kutxatila, 48080 Bilbao (Spain)


    We propose general f(R,T,R{sub μν}T{sup μν}) theory as generalization of covariant Hořava-like gravity with dynamical Lorentz symmetry breaking. FRLW cosmological dynamics for several versions of such theory is considered. The reconstruction of the above action is explicitly done, including the numerical reconstruction for the occurrence of ΛCDM universe. De Sitter universe solutions in the presence of non-constant fluid are also presented. The problem of matter instability in f(R,T,R{sub μν}T{sup μν}) gravity is discussed.

  3. Inclusion of Students with Disabilities in Tertiary Education and Employment. Education and Training Policy (United States)

    OECD Publishing (NJ3), 2011


    This book examines the transition of young adults with disabilities from school to tertiary education and work. It analyses the policy experiences of several OECD [Organisation for Economic Cooperation and Development] countries and identifies recent trends in access to education and employment as well as best transition policies and practices.…

  4. Engineering of Droplet Manipulation in Tertiary Junction Microfluidic Channels (United States)


    AFRL-AFOSR-JP-TR-2017-0055 Engineering of Droplet Manipulation in Tertiary Junction Microfluidic Channels Shalini Gupta INDIAN INSTITUTE OF...2017 2. REPORT TYPE Final 3. DATES COVERED (From - To) 14 May 2015 to 13 Nov 2016 4. TITLE AND SUBTITLE Engineering of Droplet Manipulation in...dispersed phase was increased, the critical droplet size for transition also decreased. This multivariate approach can in future be used to engineer

  5. Determining factors of youth unemployment in Greece with emphasis on tertiary education graduates


    Theodore Mitrakos; Panos Tsakloglou; Ioannis Cholezas


    Unemployment rates for young individuals are particularly high in Greece and an important fraction of the young unemployed are tertiary education graduates. The results of this study imply that the problem is the transition from education to the labour market, irrespective of the individual’s age and educational qualifications. By and large, unemployment rates for tertiary education graduates tend to diminish a few years after graduation, while they fall slower and remain higher for persons w...

  6. A Facile One-Pot Process for the Formation of Hindered Tertiary Amines

    Directory of Open Access Journals (Sweden)

    Jian Sun


    Full Text Available A simple and convenient method was developed for the preparation of hindered tertiary amines via direct reductive amination of ketones with secondary aryl amines, using trichlorosilane as reducing agent and tetramethylethylenediamine (TMEDA as organic Lewis base activator. A broad range of ketones were reacted with N-methylaniline to afford the corresponding tertiary amine products in high yield. An open transition model was proposed for the reductive step.

  7. Role of f(R,T,R{sub μν}T{sup μν}) model on the stability of cylindrical stellar model

    Energy Technology Data Exchange (ETDEWEB)

    Yousaf, Z.; Bhatti, M.Z.; Farwa, Ume [University of the Punjab, Department of Mathematics, Lahore (Pakistan)


    The aim of this paper is to investigate the stable/unstable regimes of the non-static anisotropic filamentary stellar models in the framework of f(R,T,R{sub μν}T{sup μν}) gravity. We construct the field equations and conservation laws in the perspective of this model of gravity. The perturbation scheme is applied to the analysis of the behavior of a particular f(R,T,R{sub μν}T{sup μν}) cosmological model on the evolution of cylindrical system. The role of the adiabatic index is also checked in the formulations of the instability regions. We have explored the instability constraints in the Newtonian and post-Newtonian limits. Our results reinforce the significance of the adiabatic index and dark source terms in the stability analysis of celestial objects in modified gravity. (orig.)

  8. Fundamentals of tertiary oil recovery. Pt. 1. Why tertiary recovery

    Energy Technology Data Exchange (ETDEWEB)

    Herbeck, E.F.; Heintz, R.C.; Hastings, J.R.


    Secondary recovery projects initiated annually by Atlantic Richfield Co. in the U.S. show a general trend somewhat characteristic of all U.S. producers. Why did the number of project starts decline. Simply because there was a lack of prospects for Atlantic Richfield to apply waterflooding economically. This raises the question of what is the next step to maintain U.S. oil producing rates. One answer is to recover a third crop of oil from those fields which have already undergone secondary recovery. It is becoming evident that tertiary recovery must be undertaken while the existing wells and surface equipment are still intact and usable. Very few prospects are expected to be so profitable that economics will permit redrilling of wells and replacement of surface equipment, but tertiary recovery will be applicable to many of the existing oil fields. Engineers and production personnel at all organizational levels must make an effort to recognize those fields under their supervision which are candidates for tertiary recovery applications.

  9. Parathyroid carcinoma in tertiary hyperparathyroidism. (United States)

    Kim, Byung Seup; Ryu, Han Suk; Kang, Kyung Ho; Park, Sung Jun


    Parathyroid carcinoma is a rare disease of unknown etiology. This study presents a case of parathyroid carcinoma in a patient with tertiary hyperparathyroidism. Despite a successful kidney transplantation, the intact parathyroid hormone (iPTH) level of the patient was elevated consistently and could not be controlled by medical therapy. Due to the development of tertiary hyperparathyroidism with bone pain and osteoporosis, subtotal parathyroidectomy was performed 4 months after the kidney transplantation. Histological evaluation revealed that one of four parathyroid lesions was a parathyroid carcinoma, while the others were diffuse hyperplasia. Postoperative laboratory studies indicated a decreased level of iPTH. A positron emission tomography-computed tomography performed 6 months after the operation revealed no evidence of local recurrence or distant metastasis. Copyright © 2013. Published by Elsevier Taiwan.

  10. 3 Tesla MRI of patients with a vagus nerve stimulator: initial experience using a T/R head coil under controlled conditions. (United States)

    Gorny, Krzysztof R; Bernstein, Matt A; Watson, Robert E


    To assess safety of clinical MRI of the head in patients with implanted model 100, 102, and 103 vagus nerve stimulation (VNS) Therapy Systems (Cyberonics, Inc., Houston, TX) in 3.0 Tesla MRI (GE Healthcare, Milwaukee, WI). The distributions of the radiofrequency B(1) (+)-field produced by the clinically used transmit/receive (T/R) head coil (Advanced Imaging Research Incorporated, Cleveland, OH) and body coil were measured in a head and shoulders phantom. These measurements were supplemented by temperature measurements on the lead tips and the implantable pulse generator (IPG) of the VNS devices in a head and torso phantom with the same two coils. Clinical 3T MRI head scans were then acquired under highly controlled conditions in a series of 17 patients implanted with VNS. Phantom studies showed only weak B(1) (+) fields at the location of the VNS IPG and leads for MRI scans using the T/R head coil. The MRI-related heating on a VNS scanned in vitro at 3T was also found to be minimal (0.4-0.8 degrees C at the leads, negligible at the IPG). The patient MRI examinations were completed successfully without any adverse incidents. No patient reported any heating, discomfort, or any other unusual sensation. Safe clinical MRI head scanning of patients with implanted VNS is shown to be feasible on a GE Signa Excite 3T MRI system using one specific T/R head coil. These results apply to this particular MRI system configuration. Extrapolation or generalization of these results to more general or less controlled imaging situations without supporting data of safety is highly discouraged.

  11. Secondary-to-Tertiary Comparison through the Lens of Ways of Doing Mathematics in Relation to Functions: A Study in Collaboration with Teachers (United States)

    Corriveau, Claudia


    This article addresses the issue of transition from secondary to post-secondary education through collaborative research with teachers from both levels. It takes into account implicit elements in this transition. Research on the transition in mathematics education tends to focus more on the tertiary level, studying difficulties encountered by…

  12. Tertiary Education in Colombia: Paving the Way for Reform. A World Bank Country Study. (United States)

    World Bank, Washington, DC.

    A great challenge facing Colombia is how to become an active member of the new global information and knowledge society. The changes required for this transition mean that the role of tertiary education must also shift to add to the traditional tasks of the transmission of knowledge and providing basic research the roles of training adaptable…

  13. A Comparison of Mathematics Teachers' and Professors' Views on Secondary Preparation for Tertiary Calculus (United States)

    Wade, Carol; Sonnert, Gerhard; Sadler, Philip M.; Hazari, Zahra; Watson, Charity


    This article compares the views of teachers and professors about the transition from secondary mathematics to tertiary calculus. Quantitative analysis revealed five categories where teachers and professors differed significantly in the relative frequency of addressing them. Using the rite of passage theory, the separation and incorporation phases…

  14. Salt Contribution to RNA Tertiary Structure Folding Stability (United States)

    Tan, Zhi-Jie; Chen, Shi-Jie


    Accurate quantification of the ionic contribution to RNA folding stability could greatly enhance our ability to understand and predict RNA functions. Recently, motivated by the potential importance of ion correlation and fluctuation in RNA folding, we developed the tightly bound ion (TBI) model. Extensive experimental tests showed that the TBI model can lead to better treatment of multivalent ions than the Poisson-Boltzmann equation. In this study, we use the model to quantify the contribution of salt (Na+ and Mg2+) to the RNA tertiary structure folding free energy. Folding of the RNA tertiary structure often involves intermediates. We focus on the folding transition from an intermediate state to the native state, and compute the electrostatic folding free energy of the RNA. Based on systematic calculations for a variety of RNA molecules, we derive a set of formulas for the electrostatic free energy for tertiary structural folding as a function of the sequence length and compactness of the RNA and the Na+ and Mg2+ concentrations. Extensive comparisons with experimental data suggest that our model and the extracted empirical formulas are quite reliable. PMID:21723828

  15. Tertiary hypothyroidism in a dog

    Directory of Open Access Journals (Sweden)

    Shiel Robert E


    Full Text Available A nine-year-old male entire Labrador was diagnosed with pituitary dependent hyperadrenocorticism. Following seven months of successful mitotane therapy, the dog presented with marked weight gain, seborrhoea and alopecia. Routine clinicopathological analyses revealed marked hypercholesterolaemia. Serum total and free thyroxine (T4 concentrations were below their respective reference ranges. Serum thyroid stimulating hormone (cTSH concentration was within reference range. TSH and thyrotropin releasing hormone (TRH response tests revealed adequate stimulation of total T4 in both, and cTSH in the latter test. Magnetic resonance imaging revealed a mass arising from the pituitary fossa, with suprasellar extension. A diagnosis of tertiary hypothyroidism was made. Following four weeks of levothyroxine therapy, circulating cholesterol concentration had declined, weight loss had ensued and dermatological abnormalities had improved. Euthanasia was performed four months later due to the development of neurological signs. A highly infiltrative pituitary adenoma, with effacement of the overlying hypothalamus was identified on post mortem examination. Tertiary hypothyroidism has not been previously reported in dogs.

  16. TU-AB-201-01: A Comprehensive Planning Comparison Study Between a Novel Direction Modulated Brachytherapy Tandem Applicator and Conventional T&R Applicator for Image Guided Cervical Cancer Brachytherapy

    Energy Technology Data Exchange (ETDEWEB)

    Han, D; Liu, Z [University of California, San Diego, La Jolla, CA (United States); University of California, San Diego, La Jolla, CA (United States); Tanderup, K [Aarhus University (Denmark); University of California, San Diego, La Jolla, CA (United States); Safigholi, H; Soliman, A; Song, W [Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Ontario (Canada); University of California, San Diego, La Jolla, CA (United States); Scanderbeg, D [University of California, San Diego, La Jolla, CA (United States); UCSD Medical Center, La Jolla, CA (United States); University of California, San Diego, La Jolla, CA (United States)


    Purpose: To demonstrate that utilization of a novel, intensity modulation capable, direction modulated brachytherapy (DMBT) tandem applicator can improve plan quality compared with conventional T&R applicator during an image guided cervical cancer brachytherapy. Methods: 45 cervical cancer patients treated with PDR brachytherapy were reviewed. Of them, a) 27 were treated using T&R only, b) 9 were treated using T&R with needles attached to the ring, and c) the remaining 9 were treated using T&R with needles attached to the ring (AN) as well as additional free-hand-loaded needles (FN). The DMBT tandem design has 6 peripheral holes of 1.3-mm diameter, grooved along a nonmagnetic tungsten alloy rod, enclosed in a plastic sheath with total 6.0-mm diameter. An in-house-coded inverse planning system was used for planning DMBT and T&R cases. All typical clinical constraints including OAR dose limits, dwell times, and loading patterns were respected. For the DMBT and T&R applicators, the plans were optimized with the same conventional ring in place, but repeatedly planned with and without AN/FN needles. All generated plans were normalized to the same D90 of the clinically treated plans. Results: For the plans in category a), DMBT generally outperformed T&R with average reduction in D2cc of −2.39%, −5.21%, and −2.69% for bladder, rectum, and sigmoid, respectively. For the plans in category b) and c), DMBT generally outperformed T&R if the same needles in AN/FN were utilized in both cases with average reduction in D2cc of −1.82%, −3.40%, and −6.04%, respectively. For the cases where the needles were not utilized for both applicators, an average D2cc reduction of −7.45%, −7.61%, and 17.47% were observed, respectively. Conclusions: Under the same clinical conditions, with/without needles, the DMBT applicator tends to generate more favorable plans compared with the conventional T&R applicator, and hence, is a promising technology.

  17. misconception of emergency contraception among tertiary school ...

    African Journals Online (AJOL)

    formation of reproductive health clubs in our tertiary institutions and training of peer group educators in all our communities ... social issue in.the developing worldl. In Nigeria .... and alcohol (illicit gin and stout-6. 1%). .... They are cheap, readily.

  18. Tertiary oil recovery: potential application and constraints

    Energy Technology Data Exchange (ETDEWEB)

    Geffen, C. A.


    The technology of tertiary oil recovery methods is described and potential economic and environmental constraints to future commercial application are identified. Oil recoverable by tertiary techniques represents a domestic resource of between 11- and 42-billion barrels. Estimates of additional oil supplies from tertiary methods by the year 2000 range from 1 to 8 million barrels per day, depending on the price of oil and the rate of technological development. The principal constraints to large-scale application of tertiary methods at the present time include environmental, economic and technological concerns. Regulatory action associated with the Clean Air Act Amendments of 1977 currently delay the expansion of thermal recovery operations in California and may discourage future projects. The high production costs of tertiary projects also hamper process implementation. Further testing and research is necessary to develop the technology of tertiary recovery methods and prove these techniques successful on a field-wide scale. To enable tertiary oil recovery to play a significant role in augmenting domestic energy supplies, further research and development is necessary. More accurate methods of determining reservoir structure and residual oil saturations are required, as well as means for assuring the technical feasibility and success of a tertiary method in different reservoir types. Technical process limitations must also be resolved. The severity of potential environmental impacts and constraints identified in this report should be determined. These concerns include the air pollutant emissions from steam generation in thermal processes; acceptable methods of brine disposal; damage due to runoff or accidental discharge of oil-rich chemicals into surface waters; the impacts of fluid injection on deep aquifers and the prevailing geological structure; and an adequate supply of high quality fresh water.

  19. Functional dyspepsia, upper gastrointestinal symptoms, and transit in children

    NARCIS (Netherlands)

    Chitkara, Denesh K.; Delgado-Aros, Silvia; Bredenoord, Albert J.; Cremonini, Filippo; El-Youssef, Mounif; Freese, Deborah; Camilleri, Michael


    To assess the prevalence of abnormal gastric emptying and small bowel transit in children with functional dyspepsia at a tertiary care center, and the relationship between abnormal gastric and small bowel transit and symptoms in pediatric patients with functional gastrointestinal disorders. Patients

  20. Radioguided parathyroidectomy for tertiary hyperparathyroidism. (United States)

    Somnay, Yash R; Weinlander, Eric; Alfhefdi, Amal; Schneider, David; Sippel, Rebecca S; Chen, Herbert


    Tertiary hyperparathyroidism (3HPT) is defined as the persistent hyperproduction of parathyroid hormone and resulting hypercalcemia after renal transplantation. Here, we examine the utility of radioguided parathyroidectomy (RGP) in patients with 3HPT. We reviewed a prospective surgery database containing 80 3HPT patients who underwent RGP from January 2001-July 2014 at our institution. We evaluated patient demographics, operative management, radioguided neoprobe utilization, and operative outcomes. Data are reported as mean ± standard error of the mean. The mean age of the patients was 52 ± 1 y, and 46% were male. A total of 69 patients had hyperplasia and received subtotal parathyroidectomy, whereas 5 patients had double adenomas and 6 patients had single adenomas. The average calcium level among 3HPT patients was 10.8 ± 0.1 mg/dL preoperatively and 8.7 ± 0.1 mg/dL postoperatively. In vivo radioguided counts normalized to background counts averaged 145 ± 4%, whereas ex vivo counts normalized to background counts averaged 69 ± 5%. All but one ex vivo count was >20%. Ectopically located glands were successfully localized in 38 patients using the gamma probe. Ex vivo percentage did not correlate with parathyroid gland weight, preoperative parathyroid hormone, or preoperative calcium. Our radioguided approach achieved normocalcemia in 96% of 3HPT patients undergoing RGP; two patients developed recurrent disease. In this series, all enlarged parathyroid glands were localized and resected using the gamma probe. Thus, RGP reliably localizes adenomatous, hyperplastic, and ectopically located glands in patients with 3HPT, resulting in high cure rate after resection. Copyright © 2015 Elsevier Inc. All rights reserved.

  1. Tertiary Logistics in the Focus of All Logistics


    Ratko Zelenika; Mirjana Grèiæ; Helga Pavliæ Skender


    Trade logistics, traffic logistics, transport logistics and warehouse logistics are just some of the tertiary logistics which enables production processes of all economic sector products and services. Tertiary logistics representing the tertiary economic sector is the most sofisticated and the most important logistics due to the characteristics of the tertiary sector as a service sector that promotes business conditions in all economic sectors. Accordingly, tertiary logistics has a crucial ro...

  2. A Novel Missense Mutation 224G>T (R75M in SRY Coding Region Interferes with Nuclear Import and Results in 46, XY Complete Gonadal Dysgenesis.

    Directory of Open Access Journals (Sweden)

    Wufang Fan

    Full Text Available SRY-mutation-caused sex reversal is a rare disease and mostly associated with a de novo mutation since the patients with defective SRY is infertile. There are many reports about SRY-mutation associated 46, XY ovarian disorder of sex development (DSD, but few described their molecular mechanism. Here we report a de novo mutation 224G>T (R75M in SRY associated with a phenotypic female, 46, XY karyotype and dysgerminoma. The wild and mutated SRY were cloned into recombinant plasmid and expressed in cells in vitro, the result showed the mutated SRY is greatly accumulated in cytoplasm while the wild type SRY is mostly localized in nucleus. To make sure no other genes were involved, we performed the trio-based whole exome sequencing using the DNA samples from the proband and the parents, and no mutations were identified especially in DHH, NR0B1, NR5A1, SOX9 and MAP3K1, indicating the de novo mutation in SRY is the single defect responsible for the female sex reversal. We also used bioinformatics simulation analysis to predict impact of the mutation on SRY function, and find the R75 in wild type SRY can form a hydrogen bond with serine at 91 (S91 that make the SRY protein well fit into the minor groove of target DNA, while the M75 in the mutated SRY can't. Finally, we reviewed SRY mutations based on the available references and analyzed the mutation distribution patterns according to density and continuity, which may be useful for further study of the SRY structure, function, and its relatedness with DSD.

  3. A Novel Missense Mutation 224G>T (R75M) in SRY Coding Region Interferes with Nuclear Import and Results in 46, XY Complete Gonadal Dysgenesis. (United States)

    Fan, Wufang; Wang, Bei; He, Shanshan; Zhang, Tengfei; Yin, Chenxing; Chen, Yunping; Zheng, Shuqi; Zhang, Jixia; Li, Lin


    SRY-mutation-caused sex reversal is a rare disease and mostly associated with a de novo mutation since the patients with defective SRY is infertile. There are many reports about SRY-mutation associated 46, XY ovarian disorder of sex development (DSD), but few described their molecular mechanism. Here we report a de novo mutation 224G>T (R75M) in SRY associated with a phenotypic female, 46, XY karyotype and dysgerminoma. The wild and mutated SRY were cloned into recombinant plasmid and expressed in cells in vitro, the result showed the mutated SRY is greatly accumulated in cytoplasm while the wild type SRY is mostly localized in nucleus. To make sure no other genes were involved, we performed the trio-based whole exome sequencing using the DNA samples from the proband and the parents, and no mutations were identified especially in DHH, NR0B1, NR5A1, SOX9 and MAP3K1, indicating the de novo mutation in SRY is the single defect responsible for the female sex reversal. We also used bioinformatics simulation analysis to predict impact of the mutation on SRY function, and find the R75 in wild type SRY can form a hydrogen bond with serine at 91 (S91) that make the SRY protein well fit into the minor groove of target DNA, while the M75 in the mutated SRY can't. Finally, we reviewed SRY mutations based on the available references and analyzed the mutation distribution patterns according to density and continuity, which may be useful for further study of the SRY structure, function, and its relatedness with DSD.

  4. Overpressure and hydrocarbon accumulations in Tertiary strata, Gulf Coast of Louisiana (United States)

    Nelson, Philip H.


    Many oil and gas reservoirs in Tertiary strata of southern Louisiana are located close to the interface between a sand-rich, normally pressured sequence and an underlying sand-poor, overpressured sequence. This association, recognized for many years by Gulf Coast explorationists, is revisited here because of its relevance to an assessment of undiscovered oil and gas potential in the Gulf Coast of Louisiana. The transition from normally pressured to highly overpressured sediments is documented by converting mud weights to pressure, plotting all pressure data from an individual field as a function of depth, and selecting a top and base of the pressure transition zone. Vertical extents of pressure transition zones in 34 fields across southern onshore Louisiana range from 300 to 9000 ft and are greatest in younger strata and in the larger fields. Display of pressure transition zones on geologic cross sections illustrates the relative independence of the depth of the pressure transition zone and geologic age. Comparison of the depth distribution of pressure transition zones with production intervals confirms previous findings that production intervals generally overlap the pressure transition zone in depth and that the median production depth lies above the base of the pressure transition zone in most fields. However, in 11 of 55 fields with deep drilling, substantial amounts of oil and gas have been produced from depths deeper than 2000 ft below the base of the pressure transition zone. Mud-weight data in 7 fields show that "local" pressure gradients range from 0.91 to 1.26 psi/ft below the base of the pressure transition zone. Pressure gradients are higher and computed effective stress gradients are negative in younger strata in coastal areas, indicating that a greater potential for fluid and sediment movement exists there than in older Tertiary strata.

  5. An isotope trace element study of the East Greenland Tertiary dyke swarm

    DEFF Research Database (Denmark)

    Hanghøj, Karen; Storey, Michael; Stecher, Ole


    Dykes of the East Greenland Tertiary dyke swarm can be divided into pre- and syn-break-up tholeiitic dykes, and post-break-up transitional dykes. Of the pre- and syn-break-up dykes, the most abundant group (Tholeiitic Series; TS) has major element compositions similar to the main part of the East......Nd. The post-break-up Transitional Series (TRANS) dykes are isotopically distinct from Iceland and MORB, and are interpreted as the products of contamination of Iceland plume melts with continental crust. Comparison of the Nd–Sr–Pb isotopic and trace element compositions of dykes from different segments...

  6. Transitional Justice

    DEFF Research Database (Denmark)

    Gissel, Line Engbo

    This presentation builds on an earlier published article, 'Contemporary Transitional Justice: Normalising a Politics of Exception'. It argues that the field of transitional justice has undergone a shift in conceptualisation and hence practice. Transitional justice is presently understood to be th...

  7. Smart Utilization of Tertiary Instructional Modes (United States)

    Hamilton, John; Tee, Singwhat


    This empirical research surveys first year tertiary business students across different campuses regarding their perceived views concerning traditional, blended and flexible instructional approaches. A structural equation modeling approach shows traditional instructional modes deliver lower levels of student-perceived learning quality, learning…

  8. Modelling the harmonized tertiary Institutions Salary Structure ...

    African Journals Online (AJOL)

    This paper analyses the Harmonized Tertiary Institution Salary Structure (HATISS IV) used in Nigeria. The irregularities in the structure are highlighted. A model that assumes a polynomial trend for the zero step salary, and exponential trend for the incremental rates, is suggested for the regularization of the structure.

  9. Adapting Cooperative Learning in Tertiary ELT (United States)

    Ning, Huiping


    An updated guideline for tertiary ELT in China has shifted the emphasis to the development of learners' ability to communicate in English. Using group work and getting learners actively involved in the actual use of English are highlighted more than before. This article focuses on adapting cooperative learning methods for ELT with tertiary…

  10. Tertiary Aminourea-Catalyzed Enantioselective Iodolactonization (United States)

    Veitch, Gemma E.


    Binding the anion: A highly enantioselective iodolactonization of 5-hexenoic acids has been achieved using a tertiary aminourea-catalyst. The use of catalytic iodine in this process is critical to enhancing both the reactivity and enantioselectivity of the stoichiometric I+source.The mechanism is proposed to involve binding of an iodonium imidate intermediate by the H-bond donor catalyst. PMID:20803601

  11. Tertiary Education and Training in Australia, 2009 (United States)

    National Centre for Vocational Education Research (NCVER), 2011


    Sourcing data from the National VET Provider Collection and the Higher Education Statistics Collection, this publication provides a summary of participation in tertiary education and training in Australia. It covers participation in Australian Qualifications Framework certificate I qualifications through to doctorates by research, as well as…

  12. Simple tertiary phosphines to hexaphosphane ligands: Syntheses ...

    Indian Academy of Sciences (India)

    Abstract. Designing efficient phosphorus-based ligands to make catalysts for homogeneous catalysis has been a great challenge for chemists. Despite a plethora of phosphorus ligands ranging from simple tertiary phosphines to polyphosphines are known, the enthusiasm to generate new ones is mainly due to the demand.

  13. Recruitment Of International Students Into Cameroon Tertiary ...

    African Journals Online (AJOL)

    This paper highlights the importance of Cameroon\\'s tertiary institutions\\' cooperation links with other African Universities given the rebirth of Organisation of African Unity as African Union, and the New Partnership for Africa Development (NEPAD). The present system of recruiting international students is haphazardly been ...

  14. Misconception of emergency contraception among tertiary school ...

    African Journals Online (AJOL)

    Community enlightenment about emergency contraception using specifically designed programmes, the formation of reproductive health clubs in our tertiary institutions and training of peer group educators in all our communities are advocated. Patent medicine dealers in our communities should have basic training in ...

  15. Sexual promiscuity among female undergraduates in tertiary ...

    African Journals Online (AJOL)

    The study focused on sexual promiscuity among female undergraduates and the attendant health implications. It was carried out in the tertiary institutions in Imo State using 415 final year degree students drawn from four institutions in the State. Three research questions were formulated to guide the study. The design was a ...

  16. HIV test counselling at a tertiary hospital

    African Journals Online (AJOL)

    AIDS training course presented either by the medical school or an AIDS training centre. In view of the perceived lack of training in general counselling, this would perhaps be most effective as part of a formal general counselling programme for all undergraduates. In a tertiary hospital one has the added benefit of a large.

  17. Observation of long-range tertiary interactions during ligand binding by the TPP riboswitch aptamer. (United States)

    Duesterberg, Van K; Fischer-Hwang, Irena T; Perez, Christian F; Hogan, Daniel W; Block, Steven M


    The thiamine pyrophosphate (TPP) riboswitch is a cis-regulatory element in mRNA that modifies gene expression in response to TPP concentration. Its specificity is dependent upon conformational changes that take place within its aptamer domain. Here, the role of tertiary interactions in ligand binding was studied at the single-molecule level by combined force spectroscopy and Förster resonance energy transfer (smFRET), using an optical trap equipped for simultaneous smFRET. The 'Force-FRET' approach directly probes secondary and tertiary structural changes during folding, including events associated with binding. Concurrent transitions observed in smFRET signals and RNA extension revealed differences in helix-arm orientation between two previously-identified ligand-binding states that had been undetectable by spectroscopy alone. Our results show that the weaker binding state is able to bind to TPP, but is unable to form a tertiary docking interaction that completes the binding process. Long-range tertiary interactions stabilize global riboswitch structure and confer increased ligand specificity.

  18. Economics of Tertiary Education - Challenges and dynamics of the public tertiary education in Albania

    Directory of Open Access Journals (Sweden)

    Gledian Llatja


    Full Text Available The tertiary education is a critic mechanism for the socio-economic progress, for individuals who aspire a brighter future and it is also considered an important catalyzer of the economic mobility (Department of Treasury and Department of Education, 2012, 2. Based on the positive role and impact that the tertiary education has on the sustainable development, President Obama once stated that it is of damage to treat education as a luxurious public service. In line with the general considerations about the tertiary education in the U.S. the parallel comparison with Albania comes as a direct interpretation of utopia in the education policy-making. As policies are usually drafted based on data and findings, in the case of Albania there is a lack of data on expenses on tertiary education as share of GDP. This stands also for the main limitation of the paper.

  19. Constructing Knowledge Societies : New Challenges for Tertiary Education


    World Bank


    This report describes how tertiary education contributes to building up a country's capacity for participation in an increasingly knowledge-based world economy and investigates policy options for tertiary education that have the potential to enhance economic growth and reduce poverty. It examines the following questions: What is the importance of tertiary education for economic and social ...

  20. Tertiary fatty amides as diesel fuel substitutes

    Energy Technology Data Exchange (ETDEWEB)

    Serdari, Aikaterini; Lois, Euripides; Stournas, Stamoulis [National Technical Univ. of Athens, Dept. of Chemical Engineering, Athens (Greece)


    This paper presents experimental results regarding the impact of adding different tertiary amides of fatty acids to mineral diesel fuel; an assessment of the behaviour of these compounds as possible diesel fuel extenders is also included. Measurements of cetane number, cold flow properties (cloud point, pour point and CFPP), density, kinematic viscosity, flash point and distillation temperatures are reported, while initial experiments concerning the effects on particulate emissions are also described. Most of the examined tertiary fatty amides esters have very good performance and they can be easily prepared from fatty acids (biomass). Such compounds or their blends could be used as mineral diesel fuel or even fatty acid methylesters (FAME, biodiesel) substitutes or extenders. (Author)

  1. Missed injury and the tertiary trauma survey. (United States)

    Thomson, Charles B; Greaves, Ian


    Missed injury in the context of major trauma remains a persistent problem, both from a clinical and medico-legal point-of-view. Estimates of the incidence vary widely, dependent on the precise parameters of the studied population, the definition of missed injury and the extent of follow-up, but may be as high as 38%. The tertiary survey, in which formal repeated examination of the patient is undertaken after initial resuscitation and treatment have taken place, has been suggested as a way of identifying injuries not found at presentation. This paper appraises the concept of the tertiary survey, and also reviews the literature on missed injury in order to identify the risk factors, the types of injury and the reasons for error.

  2. Tertiary Treatment Process of Preserved Wastewater

    Directory of Open Access Journals (Sweden)

    Wang Qingyu


    Full Text Available The effects of the composite coagulants on coagulation sedimentation for the preserved wastewater was investigated by changing the composite coagulant dosages, and the coagulant was composed of polymeric ferric sulfate (PFS, polyaluminium chloride (PAC, and polyaluminum ferric silicate (PAFSC, while the effect of the tertiary treatment process on the preserved wastewater was tested, which was exceeded the standard seriously. The results showed that 400 mg/L was the optimum composite coagulant dosage. The removal rates of salt and sugar were as high as 99.1% and 99.5% respectively, and the removal rates of CODCr and SS were 99.3% and 96.0%, respectively after the preserved wastewater was treated by the tertiary treatment technology, which both reached the primary standard of “The Integrated Wastewater Discharge Standard” (GB8978-1996.

  3. Exploring Tertiary Students' Understanding of Covalent Bonding (United States)

    Coll, Richard K.; Treagust, David F.


    There has been little research into learners' mental models of chemical bonding at any level, let alone the tertiary level. Undergraduate and graduate students encounter a plethora of sophisticated and highly abstract mental models for chemical bonding, and this study sought to investigate if there are preferred mental models for the concept of covalent bonding for secondary, undergraduate, and graduate chemistry learners. In particular, it was of interest to see whether exposure to increasingly sophisticated mental models at different points in a chemistry education showed up in patterns of preference and use of models in interpreting common physical properties and phenomena. The study revealed that, despite evidencing expertise in a number of highly complex and mathematically sophisticated mental models, tertiary students, including graduates (MSc and PhD), show a strong preference for simple realistic mental models. Furthermore, the students struggled to use their mental models to explain the physical properties of covalently bonded substances.

  4. Regional tertiary cross sections: Texas Gulf Coast

    Energy Technology Data Exchange (ETDEWEB)

    Debout, D.G.; Luttrell, P.E.; Seo, J.H.


    Regional studies of the Frio Formation along the Texas Gulf Coast were conducted to evaluate potential geothermal energy from deep, geopressured sandstone reservoirs. Published regional cross sections, unpublished cross sections provided by several major oil companies, and extensive micropaleontological and electrical-log files at the Bureau of Economic Geology served as basic data. These sections are meant to show gross regional distribution of sand and shale facies both laterally and vertically throughout the entire Tertiary section along the Texas Gulf Coast.

  5. Alcohol consumption in tertiary education students

    Directory of Open Access Journals (Sweden)

    Reavley Nicola J


    Full Text Available Abstract Background Heavy alcohol consumption among adolescents and young adults is an issue of significant public concern. With approximately 50% of young people aged 18-24 attending tertiary education, there is an opportunity within these settings to implement programs that target risky drinking. The aim of the current study was to survey students and staff within a tertiary education institution to investigate patterns of alcohol use, alcohol-related problems, knowledge of current National Health and Medical Research Council (NHMRC guidelines for alcohol consumption and intentions to seek help for alcohol problems. Methods Students of an Australian metropolitan university (with staff as a comparison group participated in a telephone interview. Questions related to knowledge of NHMRC guidelines, drinking behaviour, alcohol-related problems and help-seeking intentions for alcohol problems. Level of psychological distress was also assessed. Results Of the completed interviews, 774 (65% were students and 422 (35% were staff. While staff were more likely to drink regularly, students were more likely to drink heavily. Alcohol consumption was significantly higher in students, in males and in those with a history of earlier onset drinking. In most cases, alcohol-related problems were more likely to occur in students. The majority of students and staff had accurate knowledge of the current NHMRC guidelines, but this was not associated with lower levels of risky drinking. Psychological distress was associated with patterns of risky drinking in students. Conclusions Our findings are consistent with previous studies of tertiary student populations, and highlight the disconnect between knowledge of relevant guidelines and actual behaviour. There is a clear need for interventions within tertiary education institutions that promote more effective means of coping with psychological distress and improve help-seeking for alcohol problems, particularly among


    Directory of Open Access Journals (Sweden)

    Wawa Puja Prabawa


    Full Text Available Speaking is considered to be difficult thing, moreover English as a foreign language. Students' performance depends on their personalities. Students who have low participation in speaking activity in the classroom lose their opportunity to practice their speaking skill which may cause poor speaking skill and achievement. However, some of students are active in speaking activity in the classroom that leads them to have good skill and achievement in speaking. This study attempts to reveal: (1 speaking strategies used by Indonesian tertiary students in terms of speaking English and strategies to improve their speaking ability, and (2 to identify speaking strategies mostly used by the students when they speak English and improve their speaking ability. This study is a descriptive research since its purpose is to describe the Indonesian tertiary students’ learning strategies in learning speaking English. The data from 15 tertiary students, who have good performance and achievement in speaking, from one of schools of higher education in Cimahi were collected using a 21 items questionnaire of a modified version of Strategy Inventory Language Learning (SILL and 5 items interview questions. The result of the study revealed that some speaking strategies are used in terms of speaking English and improve speaking ability, namely cognitive, metacognitive and compensation strategy. In the type of speaking strategy that mostly used by the student in terms of speaking English is compensation strategy, while cognitive strategy was indicated as the mostly speaking strategies used by the Indonesian tertiary students in improving their speaking ability. Considering to the study conducted, it is recommended to students that they should know what strategies that appropriate and can help them in learning speaking English. The students should be able to choose strategies they need in learning and analyze which strategies that give better effect on their own learning.

  7. Transitional Care (United States)

    Naylor, Mary; Keating, Stacen A.


    Transitional care encompasses a broad range of services and environments designed to promote the safe and timely passage of patients between levels of health care and across care settings. High-quality transitional care is especially important for older adults with multiple chronic conditions and complex therapeutic regimens, as well as for their…

  8. Student Perspectives on Equation: The Transition from School to University (United States)

    Godfrey, David; Thomas, Michael O. J.


    It has been recognised that many student perspectives on equations and their use of the equals sign have not mirrored those that mathematicians would like to see in tertiary students. This paper tracks transition of understanding of the equals sign by comparing secondary school students' thinking with that of first year university students. We…

  9. A study of the transition pathways of school level scholarship ...

    African Journals Online (AJOL)

    ... of the school-level intervention. The benefits reported included a sound preparation for life and academic studies, and other benefits that the researchers categorised as developing resilience and grit. Keywords: grit; resilience; secondary-tertiary interface; socioeconomic status (SES); transitional paths; university success ...

  10. Structural transition in alcohol-water binary mixtures: A ...

    Indian Academy of Sciences (India)

    The strengthening of the hydrogen bonding (H-bond) network as well as transition from the tetrahedral-like water network to the zigzag chain structure of alcohol upon increasing the alcohol concentration in ethanol-water and tertiary butanol (TBA) - water mixtures have been studied by using both steady state and time ...

  11. Transitional determinacies. (United States)

    Luelsdorff, P A


    In classic generative grammar a distinction is drawn between linguistic 'competence' and linguistic 'performance', the former referring to linguistic knowledge, the latter to how linguistic knowledge is used. However, this controversial differentiation obscures the additional dichotomy between linguistic knowledge for production and linguistic knowledge for recognition. In this article it is shown that production and recognition differ, that recognition is not simply the inverse of production, and that the derivation of production from recognition and recognition from production require a small set of generalizable 'transitional determinacies'. Secondly, it is shown that transitional determinacies explain the difference between 'overt' and 'covert' recognition recently observed in prosopagnosics, patients unable to recognize familiar faces. Prosopagnosics and normals are found to differ in their transitional determinacies, such that prosopagnosics require more binders (precisors) for covert recognition than normals. In general, it is concluded that transitional determinacies are as necessary to the theory of grammar as determinacies themselves.

  12. Stereoinversion of tertiary alcohols to tertiary-alkyl isonitriles and amines. (United States)

    Pronin, Sergey V; Reiher, Christopher A; Shenvi, Ryan A


    The SN2 reaction (bimolecular nucleophilic substitution) is a well-known chemical transformation that can be used to join two smaller molecules together into a larger molecule or to exchange one functional group for another. The SN2 reaction proceeds in a very predictable manner: substitution occurs with inversion of stereochemistry, resulting from the 'backside attack' of the electrophilic carbon by the nucleophile. A significant limitation of the SN2 reaction is its intolerance for tertiary carbon atoms: whereas primary and secondary alcohols are viable precursor substrates, tertiary alcohols and their derivatives usually either fail to react or produce stereochemical mixtures of products. Here we report the stereochemical inversion of chiral tertiary alcohols with a nitrogenous nucleophile facilitated by a Lewis-acid-catalysed solvolysis. The method is chemoselective against secondary and primary alcohols, thereby complementing the selectivity of the SN2 reaction. Furthermore, this method for carbon-nitrogen bond formation mimics a putative biosynthetic step in the synthesis of marine terpenoids and enables their preparation from the corresponding terrestrial terpenes. We expect that the general attributes of the methodology will allow chiral tertiary alcohols to be considered viable substrates for stereoinversion reactions.

  13. Chapman-Jouguet deflagrations and their transition to detonation

    CERN Document Server

    Saif, Mohamed; Pekalski, Andrzej; Levin, Marc; Radulescu, Matei I


    We study experimentally fast flames and their transition to detonation in mixtures of methane, ethane, ethylene, acetylene, and propane mixtures with oxygen. Following the interaction of a detonation wave with a column of cylinders of varying blockage ratio, the experiments demonstrate that the fast flames established are Chapman-Jouguet deflagrations, in excellent agreement with the self-similar model of Radulescu et al. (2015). The experiments indicate that these Chapman-Jouguet deflagrations dynamically restructure and amplify into fewer stronger modes until the eventual transition to detonation. The transition length to a self-sustained detonation was found to correlate very well with the mixtures' sensitivity to temperature fluctuations, reflected by the $\\chi$ parameter introduced by Radulescu, which is the product of the non-dimensional activation energy $E_a/RT$ and the ratio of chemical induction to reaction time $t_i/t_r$. Correlation of the measured DDT lengths determined that the relevant characte...

  14. Thermodynamics and kinetics of RNA tertiary structure formation in the junctionless hairpin ribozyme. (United States)

    White, Neil A; Hoogstraten, Charles G


    The hairpin ribozyme consists of two RNA internal loops that interact to form the catalytically active structure. This docking transition is a rare example of intermolecular formation of RNA tertiary structure without coupling to helix annealing. We have used temperature-dependent surface plasmon resonance (SPR) to characterize the thermodynamics and kinetics of RNA tertiary structure formation for the junctionless form of the ribozyme, in which loops A and B reside on separate molecules. We find docking to be strongly enthalpy-driven and to be accompanied by substantial activation barriers for association and dissociation, consistent with the structural reorganization of both internal loops upon complex formation. Comparisons with the parallel analysis of a ribozyme variant carrying a 2'-O-methyl modification at the self-cleavage site and with published data in other systems reveal a surprising diversity of thermodynamic signatures, emphasizing the delicate balance of contributions to the free energy of formation of RNA tertiary structure. Copyright © 2017 Elsevier B.V. All rights reserved.

  15. Evaluation of the Special Tertiary Admissions Test (STAT) (United States)

    Coates, Hamish; Friedman, Tim


    This paper reports findings from the first national Australian study of the predictive validity of the Special Tertiary Admissions Test (STAT). Background on tertiary admissions procedures in Australia is presented, followed by information on STAT and the research methods. The results affirm that STAT, through the provision of baseline and…

  16. Endourology in a Nigerian Tertiary Hospital – current level of ...

    African Journals Online (AJOL)

    Background: Endourology is rapidly advancing in developed countries. However, the level of practice in public tertiary hospitals in developing countries is abysmally low. Objective: To review the current practice of endourology in a Nigerian public tertiary hospital and discuss the challenges faced during the study period.

  17. Academic mentoring and the future of tertiary education in Nigeria ...

    African Journals Online (AJOL)

    Tertiary education is a major outlet for the provision of high manpower for national development. This paper therefore highlighted the challenges of tertiary education in Nigeria, early perspectives of mentoring undergraduates, the rationale for academic mentoring, the role of a mentor, and the role of library as catalyst in the ...

  18. Opinions of Nigerian students in tertiary institutions on family size ...

    African Journals Online (AJOL)

    The study examined the opinions of Nigerian students in tertiary institutions on their ideal family size. It was conducted among students in four tertiary institutions in Edo State of Nigeria. A sample size of 454 final year students was randomly drawn from the halls of residence in the institutions using the stratified sampling ...

  19. Cost-minimization analysis of antimicrobial therapy in a tertiary ...

    African Journals Online (AJOL)

    Cost Minimization Analysis of antimicrobial therapy in a tertiary health care institution in a developing economy country was carried out. The most applicable tool for generic equivalent drugs was used in Ahmadu Bello University Teaching Hospital, a tertiary healthcare Institution in Nigeria, between 2005 and 2007. Relevant ...

  20. Conceptualising English as a lingua franca (ELF) as a tertiary ...

    African Journals Online (AJOL)

    This contribution draws on the notion of English as a lingua franca, especially as discussed in James (2006) and Smit (2010), to conceptualise English-medium tertiary education in settings where English functions as additional language and where tertiary education has a history of being undertaken in other, usually ...

  1. Solvent effects on the magnetic shielding of tertiary butyl alcohol ...

    African Journals Online (AJOL)

    The magnetic shielding and its polarizabilities, have been calculated for tertiary butyl alcohol and tertiary butyl amine. These have been used to rationalise the solvent shifts of the proton spectra of the interesting cosolvent systems with water recently measured by Kipkemboi, et al. Continuum solvation calculations and ...

  2. Crime and Crime Management in Nigeria Tertiary Institutions (United States)

    Adebanjo, Margaret Adewunmi


    This paper examines crime and its management in Nigerian tertiary institutions. Tertiary institutions today have become arenas for crime activities such as rape, cultism, murder, theft, internet fraud, drug abuse, and examination malpractices. This paper delves into what crime is, and its causes; and the positions of the law on crime management.…

  3. Pursuing Discipline and Ethical Issues in Tertiary Institutions in Nigeria

    African Journals Online (AJOL)

    Discipline and ethics are twin issues that tend to undermine the provision of quality education in tertiary institutions in Nigeria. This is because the overall goals of tertiary institutions as enunciated in the National Policy of. Education can hardly be achieved by all the stakeholders without strict conformity and adherence to the ...

  4. 10 CFR 212.78 - Tertiary incentive crude oil. (United States)


    ... 10 Energy 3 2010-01-01 2010-01-01 false Tertiary incentive crude oil. 212.78 Section 212.78 Energy DEPARTMENT OF ENERGY OIL MANDATORY PETROLEUM PRICE REGULATIONS Producers of Crude Oil § 212.78 Tertiary incentive crude oil. Annual prepaid expenses report. By January 31 of each year after 1980, the project...

  5. Seepage characteristics of the second tertiary combined model

    Directory of Open Access Journals (Sweden)

    Huan ZHAO


    Full Text Available The second tertiary combined model experiment zone has been developed in Block B, Field L. The percolation feature of the second tertiary combined develop model shows great importance to rational and efficient development of the reservoir. In order to clearly illuminate its percolation feature, the typical reservoir numerical model is built by Eclipse, which is a reservoir numerical simulation software. The percolation features of original and added perforation interval under the second tertiary combined model are studied, and the variation features of general water-cut, recovery percentage, wellbore pressure, reservoir pressure and water saturation on condition of higher injection rate under the second tertiary combined model are analyzed. The research indicates that the second tertiary combined enhances the recovery of remaining oil on top of thick reservoir by developing and enhancing original perforation interval under water drive, then improves development results by polymer flooding, and gains higher recovery rate by synthetic action of water driver and polymer flooding.

  6. Navigating the global space of tertiary education:

    DEFF Research Database (Denmark)

    Wilken, Lisanne

    to the Bologna model in order to ease mobility (at least within Europe). This paper which is based on some very preliminary findings from an ongoing research project exploring internationalization of university education in Denmark, discusses educational strategies of students attending internationalized English......Over the past ten years the number of students who go abroad to pursue tertiary education has more than doubled, from 1, 9 million in 2000 to 4.1 million in 2010 (OECD 2012). This growing number of students studying abroad contributes to the overall flow of individuals and ideas across borders...... at lesser known universities in smaller European countries such as Sweden, Norway, Denmark and the Netherlands where the national language is not one of the major world languages but where courses and educations are increasingly offered in English and where the educational structures are adapted...

  7. Grignard Synthesis of Various Tertiary Alcohols (United States)

    Everett, T. Stephen


    A general Grignard procedure is presented for the synthesis of aliphatic, tertiary alcohols containing six to nine carbons. Without revealing the specific starting materials, students are challenged to identify their unknown products from physical (boiling points, refractive indices) and spectral (infrared O-H, C-H and fingerprint regions) data. Once a product is identified retro-synthetic considerations point to which alkyl halide and ketone were required as starting materials. This laboratory exercise in organic synthesis incorporates anhydrous techniques, distillation, and infrared analysis. RX + Mg ---> [RMgX] + R'R"C=O ---> [RR'R"COMgX] ---> RR'R"COH Criteria RX = C2-C5 1' alkyl bromide (unbranched) R'R"C=O = C3-C5 ketone RR'R"COH = C6-C9 3' alcohol

  8. Three-Dimensional Isotropic Fat-Suppressed Proton Density-Weighted MRI at 3 Tesla Using a T/R-Coil Can Replace Multiple Plane Two-Dimensional Sequences in Knee Imaging. (United States)

    Homsi, R; Gieseke, J; Luetkens, J A; Kupczyk, P; Maedler, B; Kukuk, G M; Träber, F; Agha, B; Rauch, M; Rajakaruna, N; Willinek, W; Schild, H H; Hadizadeh, D R


    To evaluate whether a 3 D proton density-weighted fat-suppressed sequence (PDwFS) of the knee is able to replace multiplanar 2D-PDwFS. 52 patients (26 men, mean age: 41.9 ± 14.5years) underwent magnetic resonance imaging (MRI) of the knee at 3.0 Tesla using a T/R-coil. The imaging protocol included 3 planes of 2D-PDwFS (acquisition time (AT): 6:40 min; voxel sizes: 0.40 - 0.63 × 0.44 - 0.89 × 3mm³) and a 3D-PDwFS (AT: 6:31 min; voxel size: 0.63 × 0.68 × 0.63mm³). Homogeneity of fat suppression (HFS), artifacts, and image sharpness (IS) were evaluated on a 5-point scale (5[excellent] - 1[non-diagnostic]). The sum served as a measure for the overall image quality (OIQ). Contrast ratios (CR) compared to popliteal muscle were calculated for the meniscus (MEN), anterior (ACL) and posterior cruciate ligaments (PCL). In 13 patients who underwent arthroscopic knee surgery, two radiologists evaluated the presence of meniscal, ligamental and cartilage lesions to estimate the sensitivity and specificity of lesion detection. The CR was higher in the ACL, PCL and MEN in 3D- PDwFS compared to 2D-PDwFS (p Tesla Using a T/R-Coil Can Replace Multiple Plane Two-Dimensional Sequences in Knee Imaging. Fortschr Röntgenstr 2016; 188: 949 - 956. © Georg Thieme Verlag KG Stuttgart · New York.

  9. The flux of matter in suspension and cesium{sup 137} in the Rhone river at Arles during the exceptional flood of december 2003. contribution to the E.X.T.R.E.M.E. project; Les flux de matieres en suspension et de {sup 137}Cs dans le Rhone a Arles durant la crue exceptionnelle de decembre 2003. Contribution au projet extreme

    Energy Technology Data Exchange (ETDEWEB)

    Antonelli, C.; Eyrolle, F


    The E.X.T.R.E.M.E project is interested in the events of strong amplitude susceptible to involve important masses of material between different media and to generate activities superior to the average levels. In December, 2003, a flood of exceptional level affected the whole Rhone downstream, provoking breaks of dikes and the flood of a part of the plains of Arles and the Gard Camargue. This study concerns the streams of materials in suspension and particulate {sup 137}cesium which passed in transit in the Rhone in Arles during this episode of floods. The results show that the transfers of material in suspension and {sup 137}Cs mobilized during this event are important (5.4 x 10{sup 6} tons of materials in suspension and 77 GBq of {sup 137}Cs) and that they contribute to the increase of a factor 50 - 100 of the activity in {sup 137}Cs in waters of the Rhone with regard to a situation of low-water mark. The calculation of streams and exports of {sup 137}Cs associated with the various granulometry fractions shows on one hand the ascendancy of the streams of silt in the global assessment, on the other hand that the not consideration of sands in the global estimation of radionuclides having an affinity for the particulate phase could lead to one under significant estimation of the calculated activities. These assessments, compared with those of previous events, allow to show the coherence of the streams of materials in suspension. These results show that it is today possible to propose an order of height of the theoretical flux of {sup 137}Cs associated with an episode of floods according to the flow, to the duration of the event and the exported flux of suspension materials. (N.C.)

  10. Remote Sensing Tertiary Education Meets High Intensity Interval Training (United States)

    Joyce, K. E.; White, B.


    Enduring a traditional lecture is the tertiary education equivalent of a long, slow, jog. There are certainly some educational benefits if the student is able to maintain concentration, but they are just as likely to get caught napping and fall off the back end of the treadmill. Alternatively, a pre-choreographed interactive workshop style class requires students to continually engage with the materials. Appropriately timed breaks or intervals allow students to recover briefly before being increasingly challenged throughout the class. Using an introductory remote sensing class at Charles Darwin University, this case study presents a transition from the traditional stand and deliver style lecture to an active student-led learning experience. The class is taught at undergraduate and postgraduate levels, with both on-campus as well as online distance learning students. Based on the concept that active engagement in learning materials promotes 'stickiness' of subject matter, the remote sensing class was re-designed to encourage an active style of learning. Critically, class content was reviewed to identify the key learning outcomes for the students. This resulted in a necessary sacrifice of topic range for depth of understanding. Graduates of the class reported high levels of enthusiasm for the materials, and the style in which the class was taught. This paper details a number of techniques that were used to engage students in active and problem based learning throughout the semester. It suggests a number of freely available tools that academics in remote sensing and related fields can readily incorporate into their teaching portfolios. Moreover, it shows how simple it can be to provide a far more enjoyable and effective learning experience for students than the one dimensional lecture.

  11. Presidential Transitions (United States)


    done to facilitate the transition.52 CRS-12 53 David T. Stanley, Changing Administrations (Washington: Brookings Institution, 1965), p. 6. 54 “Pre...Conference of Mayors; Sharleen Hirsch, an educational administrator; and Jule Sugarman , a public administrator. Staff members were assigned to task forces...Issues,” Washington Post, Nov. 13, 1980, p. Al. 77 David Hoffman, “Bush Names Baker Secretary of State,” Washington Post, Nov. 10, 1988, pp. Al and

  12. Governing the transition to natural gas in Mediteranean Metropolis: The case of Cairo, Istanbul and Sfax (Tunisia)


    Verdeil, Éric; Arik, Elvan; Bolzon, Hugo; Markoum, Jimmy


    International audience; Considers the governance of natural gas networks in emerging cities. Adopts a geographical approach looking at interactions between natural gas infrastructure and urban space. Switch to natural gas linked to financial purpose (subsidy cuts) more than concern for climate change. Switch to natural gas shaped by policies governing other urban energy forms. Urban politics and issues of affordability impact the governance of natural gas transition. a b s t r a c t Recent sc...

  13. The effects of deformation of isovector electromagnetic and weak transition strengths (United States)

    Zamick, L.; Auerbach, N.


    The summed strength for transitions from the ground state of 12C via the operators st, ℓ t, rY1t, r[ Y1s] λt and r[ Y1ℓ] λt are calculated using the ΔN = 0 rotational model. If we choose the z-component of the isospin operator tz, the above operators are relevant to electromagnetic transitions; if we choose t+, they are relevant to weak transitions such as neutrino capture. In going from the spherical limit to the asymptotic (oblate) limit the strength for the operator st decreases steadily to zero; the strength for the operator ℓ t (scissors mode) increases by a factor of three. For the last three operators, isovector dipole, spin dipole and orbital dipole (including the twist mode), it is shown that the summed strength is independent of deformation. The main difference in the behavior is that for the first two operators we have in-shell transitions whereas for the last three operators the transitions are out of shell.

  14. Assessing uncertainty in outsourcing clinical services at tertiary health centers. (United States)

    Billi, John E; Pai, Chih-Wen; Spahlinger, David A


    When tertiary health centers face capacity constraint, one feasible strategy to meet service demand is outsourcing clinical services to qualified community providers. Clinical outsourcing enables tertiary health centers to meet the expectations of service timeliness and provides good opportunities to collaborate with other health care providers. However, outsourcing may result in dependence and loss of control for the tertiary health centers. Other parties involved in clinical outsourcing such as local partners, patients, and payers may also encounter potential risks as well as enjoy benefits in an outsourcing arrangement. Recommendations on selecting potential outsourcing partners are given to minimize the risks associated with an outsourcing contract. Copyright (c) 2006 John Wiley & Sons, Ltd.

  15. Simple tertiary phosphines to hexaphosphane ligands: Syntheses ...

    Indian Academy of Sciences (India)

    In this context, we have developed new synthetic methodologies for making unusual inorganic ring systems containing trivalent phosphorus centres, novel phosphorus-based multidentate and hybrid ligands and explored their rich transition metal chemistry and catalytic applications. We have also fine tuned a few existing ...

  16. China commemorates T.R. Malthus. (United States)

    Zhu, H


    In May 1998, the Population Research Institution of the People's University of China and the Adult Education College of Shenzhen University sponsored a National Symposium on Western Population Theory to commemorate the 200th anniversary of the publication of the "Essay on the Principle of Population" by Thomas Robert Malthus. Participants expressed the view that Malthus was the founder of modern demography and that his advocacy of measures to check population growth were in accord with the objectives of family planning efforts throughout the world. Participants also noted that Malthus's views, along with those of Chinese demographer Ma Yinchu, had been distorted in an anti-rightist campaign in 1957. The result of this mistaken criticism is that people still incorrectly think that Malthus advocated war to ease population pressure. In order to increase understanding of what Malthus actually said, the symposium proposed that more of his work and commentary upon his work be translated into Chinese. The symposium participants also suggested that a research group be created by the China Population Association to boost the publication of books on Western population theory.

  17. Potential impact of tertiary oil recovery

    Energy Technology Data Exchange (ETDEWEB)

    Kastrop, J.E.


    Tertiary oil recovery is America's energy ace-in-the-hole and the technology developed here over the past decade could well offer the rest of the world a big incremental boost in its future oil supplies. While U.S. producers are carefully engineering fields that have finished secondary phases of oil production, international operators are commencing pressure maintenance projects by water and gas injection, the first stage of improved oil recovery. Oil recovery authorities who have dealt with the problem for decades estimate that from 25 to 50 billion bbl could be recovered by relatively new sophisticated processes initially developed in the research laboratory and tested in the field. There are 4 basic processes that indicate promise of commercial applications. These are (1) hydrocarbon miscible which includes high-pressure gas drive, rich gas or LPG driven by gas; (2) carbon dioxide miscible with CO/sub 2/ driven by gas or water; (3) chemical flooding, such as surfactant, micellar slugs driven by an aqueous polymer solution; and (4) thermal processes.

  18. The Tertiary tectonics of the southeast Asia

    Energy Technology Data Exchange (ETDEWEB)

    Honza, Eiichi (Geological Survey of Japan, Tsukuba (Japan))


    Most of the terranes in eastern Asia appear to be relics of arcs, oceanic islands, and subduction complexes. They have collided and accreted from the inner (northwestern) side in China since the Silurian. They are characterized by three stages of Pacific and Tethys evolution. The first collision is related to the Pacific domain in the Permian in which these movements are not clearly reconstructed. The second collision is related to the closure of the Paleo-Tethys in the Late Triassic to Early Jurassic. The third is related to closure of the Neo-Tethys and the subsequent collision of India in the Tertiary. Southeast Asia is in one of the most enigmatic plate boundaries in the world, forming many small plates, collisions, and consumptions. This complication is also suggested to be a result of the northward movement of Australia since its break-up from Gondwanaland in the Cretaceous. During their evolution, most of them have associated with arcs. These arcs also have formed superimpositions on the older exotic blocks of terranes. They are reconstructed on the base of the regular duration on the formation of arcs and backarc basins, which can be seen in the Western Pacific Arc Chain.

  19. Rapid transitions

    Energy Technology Data Exchange (ETDEWEB)

    Hamrin, J.G.


    Solar energy programs are entering a critical transitional period as we move from the initial marketing of solar technologies into a phase of widespread commercialization. We face the dual challenge of trying to get enough solar systems in place fast enough to prove solar is a viable alternative, while trying to ensure the systems are designed and installed properly, proving the energy savings as promised. This is a period of both great opportunity and high risk as the field becomes crowded with new solar cheerleaders and supporters but seldom enough competent players. The status of existing and proposed programs for the accelerated commercialization of solar energy in California is described.

  20. Transit space

    DEFF Research Database (Denmark)

    Raahauge, Kirsten Marie


    This article deals with representations of one specific city, Århus, Denmark, especially its central district. The analysis is based on anthropological fieldwork conducted in Skåde Bakker and Fedet, two well-off neighborhoods. The overall purpose of the project is to study perceptions of space...... and the interaction of cultural, social, and spatial organizations, as seen from the point of view of people living in Skåde Bakker and Fedet. The focus is on the city dwellers’ representations of the central district of Århus with specific reference to the concept of transit space. When applied to various Århusian...

  1. Instrumental vaginal delivery - an assessment of use in a tertiary ...

    African Journals Online (AJOL)


    Instrumental vaginal delivery - an assessment of use in a tertiary care centre. Constance E SHEHU. Joel C OMEMBELEDE. Dept of Obstetrics &. Gynaecology, Usmanu. Danfodiyo, University. Teaching Hospital Sokoto. NIGERIA. Author for Correspondence. Constance E SHEHU. Dept of Obstetrics &. Gynaecology, Usmanu.

  2. Aquatic Life Criteria - Methyl Tertiary-Butyl Ether (MTBE) (United States)

    Information pertaining to the 1999 Acute and Chronic Ambient Aquatic Life Water Quality Criteria for Methyl Tertiary-Butyl Ether (MTBE) for freshwater and salt water. Information includes the safe levels of MTBE that should protect the majority of species.

  3. Language and Literature in Tertiary Education: The Case for Stylistics. (United States)

    Buckledee, Steve


    Advocates the use of stylistics for teaching English-as-a-Foreign-Language at the tertiary level. Describes stylistics, discusses discourse conventions and grammatical structure, and examines stylistic analysis of a Shakespearian sonnet and a poem. (Author/VWL)


    A direct synthesis of tertiary amines is presented that proceeds expeditiously via N-alkylation of amines using alkyl halides in alkaline aqueous medium. This environmentally benign reaction is accelerated upon exposure to microwave irradiation resulting in shortened reaction tim...

  5. Pregnancy outcome in unbooked mothers at a tertiary health ...

    African Journals Online (AJOL)

    demographical characteristics and feto-maternal outcome in unbooked mothers who delivered at a tertiary referral ... Data obtained from the theatre records, delivery registers and case notes were analysed using the statistical package SPSS 20.

  6. Positive and negative impact of increased tertiary attainment

    Directory of Open Access Journals (Sweden)

    Alena Bušíková


    Full Text Available The theory of human capital clearly states that the investments into the education bring many benefits and are worth the cost. The OECD Education at a Glance analysis provides support for both public and private investing in tertiary education as the net present value is positive for all observed countries. Considering the benefits of education, a growth in tertiary education should be viewed very positively. In this context, the European Strategy Europe 2020 set up one of its main goals for EU27 countries as follows: to increase the educated population so that it reaches 40% (tertiary educated people aged 30-34. This article, on an example of Slovakia, provides an analysis of both positive and negative impact of increased tertiary attainment.

  7. Social Activities and Manifest Anxiety among Freshmen in Tertiary ...

    African Journals Online (AJOL)

    ) in tertiary institutions in Lagos state of Nigeria were analysed to determine the relationship between social activities and manifest anxiety. Social activities in the study were measured in terms of freshmen adjustment to religious activities and ...

  8. Primary Index Term Secondary Index Term Tertiary Index term ...

    Indian Academy of Sciences (India)


    Tertiary Index term. Geosciences. Solid earth. Tectonics. Structural Geology. Geodynamics. Seismology. Exploration geophysics. Seismic hazards. Geomagnetism. Mineralogy. Petrology. Metamorphic. Igneous. Sedimentary. Fossil fuels. Petroleum and coal. Isotope geology. Geochronology. Isotope geology. Landform and.

  9. Challenges with Tertiary-Level Mechatronic Fluid Power

    DEFF Research Database (Denmark)

    Dransfield, Peter; Conrad, Finn


    As authors we take the view that mechatronics, as it relates to fluid power, has three levels which we designate as primary, secondary and tertiary. A brief review of the current status of fluid power, hydraulic and pneumatic, and of electronic control of it is presented and discussed. The focus...... is then on tertiary-level mechatronic fluid power and the challenges to it being applied successfully....

  10. Positive and negative impact of increased tertiary attainment


    Alena Bušíková


    The theory of human capital clearly states that the investments into the education bring many benefits and are worth the cost. The OECD Education at a Glance analysis provides support for both public and private investing in tertiary education as the net present value is positive for all observed countries. Considering the benefits of education, a growth in tertiary education should be viewed very positively. In this context, the European Strategy Europe 2020 set up one of its main goals for ...

  11. Changes in Humoral and Cellular Immunity in Tertiary Peritonitis


    Matviychuk, Oleh


    The objective of the research was to give a comparative characteristic of parameters of humoral and cellular immunity in the development of secondary and tertiary peritonitis.Materials and methods. The research enrolled 109 patients with secondary peritonitis, 20 of whom developed tertiary peritonitis. Changes in humoral and cellular immunity were evaluated by serial blood tests for the determination of leukocyte count, the relative number of lymphocytes, Ig A, M, and G levels, as well as by ...


    Directory of Open Access Journals (Sweden)

    Suresh Chincholi


    Full Text Available BACKGROUND Hyponatraemia is defined as a serum sodium level less than 135 mEq/L. High mortality among the patients of hyponatraemia is secondary to the underlying medical condition. Frequency is high in elderly patients. MATERIALS AND METHODS The study was conducted at a tertiary care centre (Basaveshwar Teaching and General Hospital, Gulbarga, from the period September 2014 to August 2016. These patients were evaluated for the underlying cause of hyponatraemia, which included detailed history and physical examination followed by appropriate laboratory investigations. Patients were followed up till the hyponatraemia was treated or patients were discharged from the hospital. RESULTS 100 patients of hyponatraemia were included in the study. 46% of the patients were asymptomatic. 33% patients had lethargy, 28% patients had postural dizziness and 19% had abnormal behaviour. Overall incidence of hyponatraemia was 4.58% in the hospitalised population, whereas its incidence in ICU patients was 22.4%. Twelve patients of symptomatic severe hyponatraemia were treated with hypertonic saline infusion, 25% patients were given loop diuretics with oral supplementation of sodium chloride for free water excretion in SIADH cases and in patients with hypervolaemia, hyponatraemia, fluid restriction was advised to 44 patients, oral supplementation of sodium chloride was given in 36 patients and 64 patients received normal saline. 9 patients included in the study died, 5 of which had advanced cirrhosis of liver as underlying cause. One patient developed Osmotic Demyelination Syndrome (ODS. CONCLUSION The possible cause of hyponatraemia should always be sought as outcome in severe hyponatraemia is governed by aetiology, and not by the serum sodium level. Treatment of severe symptomatic hyponatraemia with hypertonic saline is safe if recommendation for the rate of correction of hyponatraemia is strictly followed.

  13. A note on Maxwell's equal area law for black hole phase transition

    Energy Technology Data Exchange (ETDEWEB)

    Lan, Shan-Quan; Mo, Jie-Xiong; Liu, Wen-Biao [Beijing Normal University, Department of Physics, Institute of Theoretical Physics, Beijing (China)


    The state equation of the charged AdS black hole is reviewed in the T-r{sub +} plane. With a view on the the phase transition, the T-S, P-V, P-ν graphs are plotted and then the equal area law is used in the three cases to get the phase transition point (P, T). The analytical phase transition point relations for P-T of a charged AdS black hole has been obtained successfully. By comparing the three results, we find that the equal area law possibly cannot be used directly for the P-ν plane. According to the T-S, P-V results, we plot the P-T-Q graph and find that for a highly charged black hole a very low temperature condition is required for the phase transition. (orig.)

  14. Nonplanar tertiary amides in rigid chiral tricyclic dilactams. Peptide group distortions and vibrational optical activity. (United States)

    Pazderková, Markéta; Profant, Václav; Hodačová, Jana; Sebestík, Jaroslav; Pazderka, Tomáš; Novotná, Pavlína; Urbanová, Marie; Safařík, Martin; Buděšínský, Miloš; Tichý, Miloš; Bednárová, Lucie; Baumruk, Vladimír; Maloň, Petr


    We investigate amide nonplanarity in vibrational optical activity (VOA) spectra of tricyclic spirodilactams 5,8-diazatricyclo[6,3,0,0(1,5)]undecan-4,9-dione (I) and its 6,6',7,7'-tetradeuterio derivative (II). These rigid molecules constrain amide groups to nonplanar geometries with twisted pyramidal arrangements of bonds to amide nitrogen atoms. We have collected a full range vibrational circular dichroism (VCD) and Raman optical activity (ROA) spectra including signals of C-H and C-D stretching vibrations. We report normal-mode analysis and a comparison of calculated to experimental VCD and ROA. The data provide band-to-band assignment and offer a possibility to evaluate roles of constrained nonplanar tertiary amide groups and rigid chiral skeletons. Nonplanarity shows as single-signed VCD and ROA amide I signals, prevailing the couplets expected to arise from the amide-amide interaction. Amide-amide coupling dominates amide II (mainly C'-N stretching, modified in tertiary amides by the absence of a N-H bond) transitions (strong couplet in VCD, no significant ROA) probably due to the close proximity of amide nitrogen atoms. At lower wavenumbers, ROA spectra exhibit another likely manifestation of amide nonplanarity, showing signals of amide V (δ(oop)(N-C) at ~570 cm(-1)) and amide VI (δ(oop)(C'═O) at ~700 cm(-1) and ~650 cm(-1)) vibrations.

  15. Current demand of paediatric otolaryngology input for children with Down's syndrome in a tertiary referral centre. (United States)

    Khalid-Raja, M; Tzifa, K


    This study aimed to evaluate the activity of paediatric otolaryngology services required for children with Down's syndrome in a tertiary referral centre. A review of the paediatric otolaryngology input for children with Down's syndrome was performed; data were obtained from the coding department for a two-year period and compared with other surgical specialties. Between June 2011 and May 2013, 106 otolaryngology procedures were performed on children with Down's syndrome. This compared to 87 cardiac and 81 general paediatrics cases. The most common pathologies in children with Down's syndrome were obstructive sleep apnoea, otitis media, hearing loss and cardiac disease. The most common otolaryngology procedures performed were adenoidectomy, tonsillectomy, grommet insertion and bone-anchored hearing aid implant surgery. ENT manifestations of Down's syndrome are common. Greater provisions need to be made to streamline the otolaryngology services for children and improve transition of care to adult services.

  16. The equity imperative in tertiary education: Promoting fairness and efficiency (United States)

    Salmi, Jamil; Bassett, Roberta Malee


    While the share of the tertiary education age cohort (19-25) which is being given the opportunity to study has increased worldwide over the past two decades, this does not in fact translate into reduced inequality. For many young people, especially in the developing world, major obstacles such as disparities in terms of gender, minority population membership or disabilities as well as academic and financial barriers are still standing in their way. The authors of this article propose a conceptual framework to analyse equity issues in tertiary education and document the scope, significance and consequences of disparities in tertiary education opportunities. They throw some light on the main determinants of these inequalities and offer suggestions about effective equity promotion policies directed towards widening participation and improving the chances of success of underprivileged youths in order to create societies which uphold humanistic values.

  17. Usability of cerebrospinal fluid biomarkers in a tertiary memory clinic

    DEFF Research Database (Denmark)

    Brandt, C.; Bahl, J.C.; Heegaard, N.H.


    AIM: Assays for cerebrospinal fluid (CSF) levels of total tau, phospho-tau protein and beta-amyloid 1-42 have been available for some years. The aim of the study was to assess the usability of these biomarkers in a mixed population of tertiary dementia referral patients in a university-based memory......, the sensitivity of a single abnormal value was between 33 and 66%. The specificity was high except when discriminating AD from amnestic mild cognitive impairment. Two or more abnormal markers further increased the specificity and decreased the sensitivity. CONCLUSION: In a tertiary setting, abnormal CSF biomarker...

  18. Exports of Tertiary Education Services and the Queensland Economy


    Duhs, Ted; Duhs, Alan


    Exports of tertiary education services have become a growth industry for the Queensland economy. Since a policy change in 1987 from an aid to a trade approach to overseas students, fee paying overseas students have risen from a mere 5.9 per cent of all overseas students in 1987, to 89.6 per cent in 1995. Exports of tertiary education services from the Queensland economy now rival wool and wheat in importance. A number of marketing and policy issues arise in the context of further change in th...

  19. Sexual harassment in tertiary institutions: A comparative perspective

    Directory of Open Access Journals (Sweden)

    Joseph Janice


    Full Text Available Sexual harassment is not a new phenomenon in tertiary institutions. It has been receiving considerable attention in research and the media and public awareness has increased dramatically. However, the term sexual harassment is not used uniformly across the globe because countries have defined it differently. Consequently, prevalence of sexual harassment in education varies across cultures. This paper examines sexual harassment from a comparative perspective. It specifically focuses on the definition of sexual harassment, incidence of sexual harassment of students in tertiary institutions, effects of sexual harassment on victims; and victims’ responses to sexual harassment. It also offers suggestions for curtailing sexual harassment in these institutions.

  20. Transitions: A Personal Perspective. (United States)

    Wood, Ann Stace


    Distinguishes between unchosen transitions (children maturing and leaving, parents aging, companies downsizing) and chosen ones (moving, divorce, marriage, career changes). Describes the steps one goes through: uneasiness, renewed energy, complaining, exploration, partial transition, and the completed transition. (JOW)

  1. Students' Perception of Ceramics Education in Nigeria Tertiary ...

    African Journals Online (AJOL)


    Abstract. An investigation was conducted into the problems militating against students' enrolment in ceramics education at tertiary institutions in. Nigeria. The design of the study was a descriptive survey. The target population of the study was 8234 (eight thousand, two hundred and thirty four) students of four faculties in ...

  2. Maternal mortality audit in a tertiary health institution in Nigeria ...

    African Journals Online (AJOL)

    Maternal mortality audit in a tertiary health institution in Nigeria: Lessons from direct causes and its drivers. ... Materials and Methods: It was a prospective audit of all consecutive maternal deaths in the hospital over a three-year period. ... Possible strategies to improve health financing and referral system are proffered.

  3. Cultism and violent behaviours in tertiary institutions in Nigeria ...

    African Journals Online (AJOL)

    Nigeria, with over one hundred and fifty tertiary institutions, has witnessed unprecedented violent behaviours occasioned by students' involvement in campus cultism. Peace on campus has been shattered due to this development of violent behaviour. Blood-letting arising from either murder or manslaughter has become ...

  4. Childhood Conduct Problem and Alcohol Use of Students in Tertiary ...

    African Journals Online (AJOL)

    Early behavioural problems in children may place them at risk of alcohol abuse in later life. The study investigated the association between childhood conduct problem and alcohol abuse of students in tertiary institutions in Nigeria. The data for this cross sectional study was collected from a randomly selected sample of ...

  5. Pursuing Discipline and Ethical Issues in Tertiary Institutions in Nigeria

    African Journals Online (AJOL)

    Nekky Umera

    Kayode Ajayi – Department of Educational Management & Business. Education, Olabisi Onabanjo University, ... way, it is said to be negative in perspective. Similarly, when discipline is viewed as a way of ... of this group. In the process of conforming. Pursuing Discipline and Ethical Issues in Tertiary Institutions in Nigeria ...

  6. Determinants of the Employability of Tertiary Institution Graduates in ...

    African Journals Online (AJOL)

    We found that (i) proportionately different labour market performance engagements existed among tertiary institution graduates; (ii) more graduates were engaged in government than private sector and self sector employments and (iii) retrogressively common entrepreneurial practices, introvert personality trait, cognitive ...

  7. Bryozoa from the Tertiary sediments of Western Kachchh, Gujarat ...

    Indian Academy of Sciences (India)

    succession of Jabal Hafit, Al Ain, United Arab Emi- rates and Arabian Peninsula; Bullettino della Societ`a. Palaeontologica Italiana 42(3) 242–265. Canu F and Bassler R S 1920 North American early Tertiary. Bryozoa; United States National Museum Bulletin 106. 1–879. Canu F and Bassler R S 1929 Contribution to the ...

  8. Postoperative nausea and vomiting at a tertiary care hospital in ...

    African Journals Online (AJOL)

    Background: Postoperative nausea and vomiting is one of the most distressing morbidities associated with surgery. This descriptive prospective study was conducted to determine the incidence, predictors and management of postoperative nausea and vomiting among patients attending a tertiary hospital in north-western ...

  9. Hand Washing Practices amongst Doctors in A Tertiary Hospital in ...

    African Journals Online (AJOL)

    Washing hand with soap and water is said to be the single most important intervention against hospital acquired infections. This study aimed to explore perceptions, attitudes and hand washing practices amongst doctors in a tertiary institution in Port Harcourt, Nigeria. This was a descriptive cross sectional survey carried out ...

  10. Patterns and Outcomes of Diabetic Admissions in a Tertiary Hospital ...

    African Journals Online (AJOL)

    The prevalence of diabetes mellitus is increasing globally. It also constitutes one of the common indications for admission into the medical wards of most hospitals. This study is aimed at examining diabetes –related admission and outcomes in a tertiary hospital located in a semi –urban community in Delta state, ...

  11. Strength and Deformation Properties of Tertiary Clay at Moesgaard Museum

    DEFF Research Database (Denmark)

    Kaufmann, Kristine Lee; Nielsen, Benjaminn Nordahl; Augustesen, Anders Hust

    The tertiary clay at Moesgaard Museum near Aarhus in the eastern part of Jutland in Denmark is a highly plastic, glacially disturbed nappe of Viborg Clay. The clay is characterised as a swelling soil, which could lead to damaging of the building due to additional heave of the soil. To take...

  12. Measuring Student Satisfaction in Higher and Tertiary Education: A ...

    African Journals Online (AJOL)

    The research set out to establish the views of students about service provision in higher and tertiary education institutions. A case study approach was used. Important parameters such as tangibles, reliability, responsiveness, assurance and empathy were used to obtain students' views about quality of service provision in ...

  13. Oesophageal squamous cell cancer in a South African tertiary hospital

    African Journals Online (AJOL)

    Oesophageal squamous cell cancer in a South African tertiary hospital: a risk factor and presentation analysis. ... Methodology: Information on patients managed at Inkosi Albert Luthuli Central Hospital (IALCH), Durban, South Africa, between 1 October 2013 and 31 December 2014 was retrieved from a prospective ...

  14. Septic Abortion Managed in a Tertiary Hospital in West Bengal ...

    African Journals Online (AJOL)

    Background: Septic abortion is still a challenging problem and a major cause of maternal mortality and morbidity in developing countries. Aim: The present study was conducted to estimate incidence, causes, risk factors, associated microorganisms, and treatment modalities of cases of septic abortion managed in a tertiary ...

  15. Sexism and Sexual Harassment in Tertiary Institutions | Akpotor ...

    African Journals Online (AJOL)

    Sexual harassment is a recurring decimal in tertiary institutions. The paper therefore investigates the effects of sexual harassment on the academic performance of female students, using Delta State University, Abraka, as case study. The participants were randomly selected 200level – 500level students from various ...

  16. Pattern of liver disease admissions in a Nigerian tertiary hospital ...

    African Journals Online (AJOL)

    Objective: Liver disease is an important cause of morbidity and mortality globally. Its pattern varies in different geographical locations. This study aimed to determine the pattern and risk factors of liver disease in a Nigerian tertiary hospital. Study Design: Retrospective Study Site: University of Nigeria teaching hospital ...

  17. User education in tertiary institution in Nigeria | Osagie | Lagos ...

    African Journals Online (AJOL)

    ... User Education Programme. There were 300 respondents, 100 from each of three academic institutions. The criticisms, problems highlighted by the respondents and suggestions for improvement are discussed. Keywords: education, institution, nigeria, tertiary, user. Lagos Journal of Library and Information Science Vol.

  18. Building Social Justice among Academic Staffs of Tertiary ...

    African Journals Online (AJOL)

    The study investigated the influence of acculturation, networking and school management support on social justice building among university academic staffs of tertiary institutions. A descriptive survey research design was adopted for the study. The sample for the study was three hundred (300) randomly selected academic ...

  19. Breast Fine Needle Aspiration Cytology in a Nigerian Tertiary Hospital

    African Journals Online (AJOL)

    Breast Fine Needle Aspiration Cytology in a Nigerian Tertiary Hospital. ... The sociodemographic data; cytology result, final histology result and the clinical staging for breast cancer were analyzed. Results: Eight hundred and ... false negative. Also, multi-disciplinary audits of difficult case should be part of the work routine.

  20. Obstetric intensive care admissions at a tertiary hospital in Limpopo ...

    African Journals Online (AJOL)

    Objective. To determine the characteristics of obstetric patients admitted to the intensive care unit (ICU) at a tertiary hospital in the Limpopo Province, South Africa. Methods. Hospital files of all obstetric patients admitted to the Pietersburg provincial referral hospital ICU from 1 January 2008 to 31 December 2012 were ...

  1. Motivation in vocational education: a reform issue in tertiary ...

    African Journals Online (AJOL)

    Working in a non-motivating environment is a nagging issue in various tertiary institutions in Cross River State .This dampens staff morale a great deal. However, the provision of motivation in work places will be a great boost to staff morale especially in Vocational Education. This paper discusses the meaning of motivation, ...

  2. Managing tertiary institutions for the promotion of lifelong learning in ...

    African Journals Online (AJOL)

    The study investigated ways of managing tertiary institutions for the promotion of lifelong learning in Cross River State, Nigeria. One research question was raised and one hypothesis formulated to guide the study. Multistage sampling procedure was adopted for the study. Stratified random sampling technique and simple ...

  3. State of physical facilities in Nigerian tertiary educational institutions ...

    African Journals Online (AJOL)

    This paper examined the state of physical facilities in Nigerian tertiary institutions in comparison with cost of facilities management in the institutions. This was achieved by determining the availability of physical facilities in the institution, assessment of the various facilities managers in the institution, and determining if the ...

  4. Obesity and associated factors in young adults attending tertiary ...

    African Journals Online (AJOL)

    Obesity and associated factors in young adults attending tertiary institutions in south-eastern Nigeria. Patricia Ogechi Ukegbu, Ada Charity Uwaegbute, Chinyere Akudo Echendu, Chukwunonso Ejike, Julie Uche Anyika-Elekeh, Victoria Uzoamaka Asumugha, Solomon Abasiekong Kuyik, Shola Omodamiro, Blessing Nwofia, ...

  5. Utilization of Antihypertensive Drugs: A Comparison of Tertiary and ...

    African Journals Online (AJOL)

    To compare the quality of antihypertensive prescriptions at 2 different health care levels in a hypertensive Nigerian population.We carried out a retrospective comparative analysis of the quality and pattern of antihypertensive and low-dose aspirin prescription in a tertiary and two secondary health care institutions providing ...

  6. Competency Discourses: An Analysis of Secondary and Tertiary Assessments (United States)

    McNaughton, Susan M.


    Analysis of a sample of assessment tasks used in New Zealand first-year clinical and final-year secondary school Biology and Chemistry National Certificate of Educational Achievement summative assessments was conducted to assess whether similarities and differences existed in secondary and tertiary competency discourses. Findings suggested…

  7. Geological and geochemical variations in Mid-Tertiary Ethiopian ...

    African Journals Online (AJOL)

    The paper presents the results of a comprehensive major element, trace element, and Sr-Nd-Pb-Hf isotopic study of Mid-Tertiary volcanic sequences from the northwestern flood basalt province in Ethiopia. The volcanic rocks studied range in composition from basanites, alkaline basalts, and ankaramites, which form the 1st ...

  8. Influencing factors on lecture attendance at a tertiary institution ...

    African Journals Online (AJOL)

    The tendency towards decreasing class attendance by students is a concern for many tertiary institutions. Various factors contribute to the motivation of students, which in turn directly or indirectly influence them to attend lectures. The aim of the study is mainly to investigate which factors are related to the problem of low ...

  9. Dealing with difference and dissensus within the tertiary environment

    African Journals Online (AJOL)

    Dealing with difference and dissensus within the tertiary environment. Mollie Painter-Morland. Abstract. An important challenge that many South African organisations face, is to find a way of dealing with difference that allows for unity amidst diversity. To make this possible, institutional frameworks should function as guiding ...

  10. Effect of health education on knowledge and attitude of tertiary ...

    African Journals Online (AJOL)

    Background: In order to make good decisions about their sexual and reproductive health, young people need reliable information. This study assessed the effect of health education on the knowledge and attitude of tertiary school students towards sexually transmitted infections. Methods: The study employed a ...

  11. Hand hygiene amongst dental professionals in a tertiary dental clinic ...

    African Journals Online (AJOL)

    Objective: To evaluate hand washing attitude and practices among Dentists and Dental Students treating patients in a Nigerian Tertiary Dental Clinic. Materials and Methods: A cross-sectional survey of Dentists and Dental Students treating patients in University of Benin Teaching Hospital was conducted between February ...

  12. Tertiary Education and Gender Disparities in a Dollarised Economy ...

    African Journals Online (AJOL)

    Tertiary Education and Gender Disparities in a Dollarised Economy: A Case Study of the Faculty of Social Studies at the University of Zimbabwe. ... devastating impacts on the female students. This is being caused by the 'second class citizen' treatment given to the girl child by most families as caused by gender stereotypes.

  13. Breast Self Examination Practice among Female Students of Tertiary Institutions (United States)

    Agbonifoh, Julia Adesua


    Against the background of the dangers posed by breast cancer world-wide, and the importance of its early detection and therefore breast self examination (BSE), this study investigated the practice of BSE among female students in tertiary institutions in Edo state. A sample of 723 participants selected through a combination of multi-stage,…

  14. Ensuring Effective Mentoring in Tertiary Institutions in Anambra State ...

    African Journals Online (AJOL)

    One research question guided the study while one null hypothesis was tested at 0.05 level of significance using t-test statistics. A structured questionnaire ... Identified strategies should be adopted by the institutions to ensure the effectiveness of mentoring in public and private tertiary institutions in Anambra State. Key words: ...

  15. Asset Distribution and Tertiary Education Expenditure in Developing Countries (United States)

    Hwang, J.


    This paper examines whether initial asset distribution affects the composition of government expenditure on education. Using a cross-section of developing countries, it is found that a country's initial asset inequality is positively and significantly associated with the ratio of tertiary education expenditure to government education expenditure,…

  16. Spectrum of Glaucoma Presentation in a Nigerian Tertiary Hospital

    African Journals Online (AJOL)


    of African descent to be four times greater than in. Spectrum of Glaucoma Presentation in a. Nigerian Tertiary Hospital. Olusola Olawoye1,2, Sarimiye Tarella1. 1Department of Ophthalmology, University College Hospital, Ibadan, 2Department of Ophthalmology, College of Medicine,. University of Ibadan, Ibadan, Nigeria.

  17. Counselling for Sustainable Peace in Tertiary Institutions in Nigeria (United States)

    Nduka-Ozo, Stella Ngozi


    This study reviewed the nature of peace in Tertiary Institutions in Nigeria using Ebonyi State University as a case study. The purpose of the study was to review the various factors responsible for lack of peace. The sample was drawn from the three hundred level students of the Faculty of Education. Thirty students were selected from each of the…

  18. Disease pattern of hospitalized patients in two tertiary healthcare ...

    African Journals Online (AJOL)

    Background: The burden of communicable diseases is high, now the burden of non-communicable disease is also growing hence it important that the distributions of different disease in Tertiary Hospital is known. Unprecedented changes have occurred in the structure of the society that have impacted on health and ...

  19. Predictors of Attrition and Achievement in a Tertiary Bridging Program (United States)

    Whannell, Robert


    This study examines the attrition and achievement of a sample of 295 students in an on-campus tertiary bridging program at a regional university. A logistic regression analysis using enrolment status, age and the number of absences from scheduled classes at week three of the semester as predictor variables correctly predicted 92.8 percent of…

  20. Candiduria among HIV- Infected Patients Attending a Tertiary ...

    African Journals Online (AJOL)

    susceptibility to fluconazole and voriconazole in a tertiary hospital. Methods: A total of 300 subjects comprising of 200 HIV patients and 100 non-HIV individuals were used for this study. Clean catch midstream were collected from each individual and processed using standard microbiological techniques. Emergent Candida ...

  1. Tertiary Institutions, Entrepreneurship Education and Youth Empowerment in Nigeria (United States)

    Olasunkanmi, Abari Ayodeji; Olufunke, Oyetola Idowu; Adetayo, Okunuga Adedapo


    Entrepreneurship Education has recently become a global phenomenon in the development of world youths for self employment and self-reliance. The Nigerian nation cannot afford to be left out and left behind in this new trend in education both at the secondary and tertiary levels. However, while the Universal Basic Education (UBE) curriculum has…

  2. Anti Diabetic Drug Utilization by Elderly Patients in a Tertiary ...

    African Journals Online (AJOL)

    This study is intended to determine the pattern and rational use of drugs in the elderly diabetic patients in a tertiary health care facility in Western Nigeria. This was a retrospective study involving 173 case files of elderly diabetic patients treated in the Endocrinology Clinic of Olabisi Onabanjo University Teaching Hospital ...

  3. Depression in pregnancy and the puerperium in a tertiary health ...

    African Journals Online (AJOL)

    BACKGROUND: Depression is common in pregnancy in high-income-countries but rarely spoken about in Nigerian Tertiary Obstetric Centres. OBJECTIVES: This study was conducted to ascertain the prevalence and risk factors for major depression in pregnancy and puerperium at the University of Port Harcourt Teaching ...

  4. Drug Production in Tertiary Health Institutions – Needs, Constraints ...

    African Journals Online (AJOL)

    This study was carried out to investigation the needs, problem and prospects of drug production in tertiary health institutions using Lagos University Teaching Hospital as a case study and to recommend solutions to the problems so identified. The use of questionnaires was employed in the study covering all pharmacists in ...

  5. A Conceptual Approach for Blended Leadership for Tertiary Education Institutions (United States)

    Jones, Sandra; Harvey, Marina; Lefoe, Geraldine


    Over the last 20 years, the tertiary education sector has adopted new administrative management approaches, with the aim of improving accountable and strategic focus. Over the same period, the question of how to build leadership capacity to improve learning and teaching and research outcomes has led to discussion on what constitutes academic…

  6. Stroke at a tertiary medical institution in Northern Nigeria: Patients ...

    African Journals Online (AJOL)

    Background: Little is known about the burden of stroke in the northern part of Nigeria as most studies in the country have been in the southern part. The objective of this study was to study the profile of stroke patients and predictors of outcome in a tertiary health centre in Katsina, North-Western Nigeria.. Patients and Method: ...

  7. Secondary and Tertiary Hyperparathyroidism, State of the Art Surgical Management (United States)

    Pitt, Susan C.; Sippel, Rebecca S.


    Synopsis This article reviews the current surgical management of patients with secondary and tertiary hyperparathyroidism. The focus is on innovative surgical strategies that have improved the care of these patients over the past 10 to 15 years. Modalities such as intraoperative parathyroid hormone monitoring and radioguided probe utilization are discussed. PMID:19836494

  8. Metastatic breast cancer in a Nigerian tertiary hospital | Adisa ...

    African Journals Online (AJOL)

    Metastatic breast cancer in a Nigerian tertiary hospital. ... Background: Late presentation of breast carcinoma is common in resource-limited countries with attendant poor outcome. Objective: To describe the pattern of clinical ... resource limitations. Improved awareness of the disease is advocated to reduce late presentation.

  9. The Impact of Cooperative Learning on Tertiary EFL Learners' Motivation (United States)

    Ning, Huiping; Hornby, Garry


    This study was aimed at investigating the impact of cooperative learning on the motivation of tertiary English learners. Participants were from two randomly assigned classes at a university in the north of China. A pre-test-post-test control group design was employed to compare the impact of the cooperative learning approach with that of…

  10. Dating Violence in South-Western Nigeria Tertiary Institutions ...

    African Journals Online (AJOL)

    This paper examined peace education as a means of curbing gap in knowledge and dating violence in South-western Nigeria tertiary institutions. Economic, social and psychological problems exert enormous pressures on students making them violent or docile in the face of challenges. These factors combine to make ...

  11. An audit of colorectal cancer histopathology reports in a Tertiary ...

    African Journals Online (AJOL)

    Objective: To audit the completeness of histopathologic reports of Colorectal Cancer for prognostic information in a tertiary care hospital in the light of the minimum reporting standards for colorectal cancer resections recently proposed for use in Nigeria. Material and Methods: Twenty–five histopathology reports of colorectal ...

  12. Trauma admissions among victims of domestic violence at a tertiary ...

    African Journals Online (AJOL)

    Trauma admissions among victims of domestic violence at a tertiary care hospital in north-western Tanzania: an urgent call to action. ... Suspecting sexual partner being unfaithful was the most common reason given by victims for domestic violence in 63.4% of cases. Blunt and sharp objects (56.8%) were the most common ...

  13. An Audit of Otorhinolaryngological Practice in a Tertiary Institution in ...

    African Journals Online (AJOL)

    Background: The Niger Delta University Teaching Hospital (NDUTH) is a young tertiary hospital with recently established department in various specialties. In spite of this it caters for the health needs of a lot of the patients in Bayelsa state and its environs. The aim of this study therefore is to audit the otorhinolaryngological ...

  14. Management of necrotizing enterocolitis: experience at a tertiary ...

    African Journals Online (AJOL)

    The aim of this study was to determine the incidence of NEC and identify the factors predicting the surgical management and also to determine the mortality due to NEC at our tertiary care neonatal unit in Oman. Materials and methods The parameters studied included sex-based differences, gestational age at birth, birth ...

  15. An Innovation Systems Perspectives on Tertiary-Level Agricultural ...

    African Journals Online (AJOL)

    An Innovation Systems Perspectives on Tertiary-Level Agricultural Education in Sub-Saharan Africa: (Evidence From Ethiopia) ... it should also play a role in building the capacity of organizations and individuals to explore new products and processes that depend on the transmission and adaptation of existing information.

  16. Auditing surgical service provision at a South African tertiary institution

    African Journals Online (AJOL)

    Conclusion: The HEMR system enabled the Pietermaritzburg Metropolitan Department of Surgery to quantify the burden of surgical disease and map district referral patterns. Thirty percent of operative procedures performed were assessed as district-level operations. Potentially correctable deficits identified within the tertiary ...

  17. Tertiary Educational Institutions for Teaching, Research and Development (United States)

    Amoo, Sikiru A.


    This paper examines the quality of teaching and research in developing human resources to facilitate the development of tertiary education in the nation. It discusses the challenges and the roles of research in higher education. The author argues that the combination of content and pedagogical knowledge could help to develop human resources for…

  18. Infection control in anaesthesia in regional, tertiary and central ...

    African Journals Online (AJOL)

    Background: Anaesthetic equipment is a potential vector for the transmission of disease. This study was undertaken to observe current infection control practices among anaesthetic nurses regarding the decontamination of anaesthetic equipment in regional, tertiary and central hospitals in KwaZulu-Natal. Method: All ...

  19. The Equity Imperative in Tertiary Education: Promoting Fairness and Efficiency (United States)

    Salmi, Jamil; Bassett, Roberta Malee


    While the share of the tertiary education age cohort (19-25) which is being given the opportunity to study has increased worldwide over the past two decades, this does not in fact translate into reduced inequality. For many young people, especially in the developing world, major obstacles such as disparities in terms of gender, minority population…

  20. Blood donation trend in a tertiary hospital in Nigeria | Olawumi ...

    African Journals Online (AJOL)

    Background: Voluntary donors who ought to be the main source of donor blood are relatively few in Nigeria. There is therefore a need to study current patterns of blood donation and design strategies for improvement. Objectives: To determine the types , age and sex distribution of blood donors in a tertiary Hospital in ...

  1. Tertiary syphilis in the lumbar spine: a case report. (United States)

    Bai, Yang; Niu, Feng; Liu, Lidi; Sha, Hui; Wang, Yimei; Zhao, Song


    The incidence of tertiary syphilis involvement in the spinal column with destructive bone lesions is very rare. It is difficult to establish the correct diagnosis from radiographs and histological examination alone. Limited data are available on surgical treatment to tertiary syphilitic spinal lesions. In this article, we report a case of tertiary syphilis in the lumbar spine with osteolytic lesions causing cauda equina compression. A 44-year-old man who suffered with low back pain for 6 months and progressive radiating pain at lower extremity for 1 week. Radiologic findings showed osteolytic lesion and new bone formation in the parts of the bodies of L4 and L5. Serum treponema pallidum hemagglutination (TPHA) test was positive. A surgery of posterior debridement, interbody and posterolateral allograft bone fusion with instrumentation from L3 to S1 was performed. The low back pain and numbness abated after operation. But the follow-up radiographs showed absorption of the bone grafts and failure of instrumentation. A Charcot's arthropathy was formed between L4 and L5. It is challenging to diagnose the tertiary syphilis in the spine. Surgery is a reasonable auxiliary method to antibiotic therapy for patients who suffered with neuropathy. Charcot's arthropathy should be considered as an operative complication.

  2. Characteristics of Inflammatory Bowel Disease in Three Tertiary ...

    African Journals Online (AJOL)

    BACKGROUND: Inflammatory bowel disease (IBD) refers to two chronic inflammatory disorders of the gastrointestinal tract which is generally believed to be rare in most African countries. The objectives of the current study were to present the experience of three tertiary gastroenterology centers in southern part of Nigeria on ...

  3. Management challenges of pelvic abscess in a tertiary health ...

    African Journals Online (AJOL)

    Background: This study was carried out to review the incidence, demographic variables and challenges in managing pelvic abscess in a tertiary health institution, the University of Benin Teaching Hospital, Benin City, Nigeria. Methods: This was a retrospective study. Gynaecological patients known to have had pelvic ...

  4. Microstructural Characterization of Alloy 617 Crept into the Tertiary Regime

    Energy Technology Data Exchange (ETDEWEB)

    Lillo, Thomas Martin [Idaho National Laboratory; Wright, Richard Neil [Idaho National Laboratory


    The microstructure of Alloy 617 was characterized following creep tests interrupted at total creep strains ranging from 2-20%. A range of creep temperatures (750-1000oC) and initial creep stresses (10-145 MPa) produced creep test durations ranging from 1 to 5800 hours. Image analysis of optical photomicrographs on longitudinal sections of the gage length was used to document the fraction of creep porosity as a function of creep parameters. Creep porosity was negligible below tertiary creep strains of 10% and increased with tertiary creep strain, thereafter. For a given temperature and total creep strain, creep porosity increased with decreasing creep stress. Creep porosity increased linearly with duration of the creep experiment. TEM performed on the gage sections did not reveal significant creep cavity formation on grain boundaries at the sub-micron level. It was concluded that the onset of tertiary creep did not result from creep cavitation and more likely arose due to the formation of low energy dislocation substructures with increasing tertiary strain.

  5. Sexual Harassment in Tertiary Science: Implications for Gender Equity

    African Journals Online (AJOL)

    The paper focuses on the incidence of sexual harassment in tertiary science education and its attendant effects on students and academics. Data from a survey of six higher institutions comprising two universities, two colleges of education and two polytechnics was used. Results indicate high rate of sexual harassment of ...

  6. Food Insecurity: Is It an Issue among Tertiary Students? (United States)

    Gallegos, Danielle; Ramsey, Rebecca; Ong, Kai Wen


    Insufficient access to food is known to compromise tertiary studies. Students often belong to groups known to have poor food security such as those renting or relying on government payments. The present study administered a cross-sectional survey incorporating the USDA food security survey module (FSSM) to 810 students at a metropolitan university…

  7. Ectopic pregnancy experience in a tertiary health facility in South ...

    African Journals Online (AJOL)

    Background: Ectopic pregnancy is a life-threatening gynecological emergency, and a significant cause of maternal morbidity and mortality in Nigeria. Objective: To determine the incidence, clinical presentation, risk factors and management outcomes of ectopic pregnancies in a tertiary health facility. Methods: A retrospective ...

  8. Contributory Factors to Clients' Satisfaction in a Tertiary Antenatal ...

    African Journals Online (AJOL)

    This study aimed at identifying factors that contribute to clients' satisfaction in a tertiary antenatal clinic in Plateau State. Methods: This was a facility-based, cross sectional study where 100 clients of reproductive age (15-45 years) were selected using systematic sampling technique. Data was collected using a structured, ...

  9. Cretaceous–Tertiary Mass Extinction Meteoritic Versus Volcanic ...

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 3; Issue 3. Cretaceous – Tertiary Mass Extinction Meteoritic Versus Volcanic Causes. P V Sukumaran. General Article Volume 3 Issue 3 March 1998 pp 8-17. Fulltext. Click here to view fulltext PDF. Permanent link:

  10. Patient satisfaction in neurological second opinions and tertiary referrals

    NARCIS (Netherlands)

    Wijers, D.; Wieske, L.; Vergouwen, M.D.I; Richard, E.; Stam, J.; Smets, E.M.A.


    Although the number of neurological second opinions (SOs) and tertiary referrals (TRs) is increasing, only little is known about expectations and patient satisfaction in this group of patients. Therefore, the purpose of this study was to explore expectations of patients who get a neurological SO or

  11. Self care activities among patients with diabetes attending a tertiary ...

    African Journals Online (AJOL)

    Self care activities among patients with diabetes attending a tertiary care hospital in Mangalore Karnataka, India. ... Conclusions: Self‑care practices were found to be unsatisfactory in almost all aspects except for blood sugar monitoring and treatment adherence. As these practices are essential for prevention of ...

  12. Learning Assessment in Tertiary Business Education with Revised Taxonomy (United States)

    Hossain, Md. Shajjad


    The goal of this study was to evaluate the assessment criteria of learning in tertiary education of Bangladesh. The study was aimed at identifying percentage of questions during learning assessment of business graduates following cognitive levels of Bloom's in revised Taxonomy and to test whether there was any significant difference in the…

  13. Management of necrotizing enterocolitis: experience at a tertiary ...

    African Journals Online (AJOL)

    Introduction Necrotizing enterocolitis (NEC) is the most common surgical emergency in the neonatal intensive care unit. The aim of this study was to determine the incidence of NEC and identify the factors predicting the surgical management and also to determine the mortality due to. NEC at our tertiary care neonatal unit in ...

  14. Automated Stock Control System for Bookshops in Tertiary Institutions

    African Journals Online (AJOL)

    The recent need for automated stock control system for bookshops in tertiary institutions was generated by unequal availability of books and stiff scarcity of books in some areas while in other areas books are being wasted or unsold. This research has made use of distributed database systems in developing stock control ...

  15. Sexual behaviour among students in tertiary institutions in Kano ...

    African Journals Online (AJOL)

    Conclusion: In the light of the high level of sexual activity detected, it is recommended that family life or sexuality education, starting early, through primary, secondary and tertiary education be institutionalised. This is to equip our youths with correct information to enable them make informed choices about responsible sexual ...

  16. Factors affecting utilization of University health services in a tertiary ...

    African Journals Online (AJOL)


    Jan 16, 2013 ... Objective: To determine students' perception of health care services provided in a tertiary institution and assess students' attitude towards ... distance of health facilities, waiting time and quality of. Factors affecting utilization of ... satisfaction has received little research attention, and it is unclear whether the ...

  17. Patterns of Eye Diseases in Children Visiting a Tertiary Teaching ...

    African Journals Online (AJOL)

    Background: About 19 million children worldwide live with visual impairments resulting from different ocular morbidities. This study aimed to identify the different causes of eye diseases in children visiting a tertiary eye centre at Jimma University Hospital. Methods: We conducted a retrospective review of charts of patients of ...

  18. Improving listening skills of tertiary level students for effective ...

    African Journals Online (AJOL)

    Listening is essential to the leaming process. Students in tertiary institutions of learning need to acquire effective listening and note-taking skiils in order to benefit from lectures. This paper focused on factors militating against effective listening during lectures such as poor rate of presentation, poor communication skills, ...

  19. Pattern of childhood malignant tumours in two tertiary teaching ...

    African Journals Online (AJOL)

    Background: Cancer is a public health problem worldwide affecting all categories of persons. It is the second common cause of death in developed countries and among the three leading causes of death in developing countries. Objective: To compare the patterns of malignant childhood tumours in two tertiary hospitals in ...

  20. Tertiary classes–after Chern-Simons theory

    Indian Academy of Sciences (India)

    J.N. Iyer Institute of Mathematical Sciences Chennai, India


    Nov 8, 2013 ... Euler characteristic class. In early twentieth century, the notion of local product structure, i.e. fiber spaces and their generalizations appeared, in the study of topological spaces (with additional structures). J.N. Iyer. IMSc, Chennai. Tertiary classes–after Chern-Simons theory ...

  1. Assessment of user satisfaction with library services in tertiary ...

    African Journals Online (AJOL)

    The main objective of this study was to determine the relationship between library services and user satisfaction in tertiary institution libraries in Akwa Ibom State, Nigeria. Survey research design was considered appropriate and adopted for the study To achieve the purpose of the study, two hypotheses were formulated to ...

  2. Sexual behaviours of undergraduates of tertiary institutions in Kwara ...

    African Journals Online (AJOL)

    Sexuality among youths has become a source of great concern due to its attendant effects. Thus, the objective of this study was to investigate the sexual behaviours of undergraduates of tertiary institutions in Kwara State. The study also examined whether or not variables of gender and school type had significant influence ...

  3. Nurses' communication and patient satisfaction in a tertiary hospital ...

    African Journals Online (AJOL)

    Nurses' communication of nursing care provision in tertiary health facilities and patient satisfaction are closely related. This has remained a yardstick for measuring success of the services provided in many health facilities. This study investigated the influence of nurses' communication of nursing care on patient satisfaction ...

  4. Genesis of some tertiary Indian coals from the chemical composition ...

    Indian Academy of Sciences (India)

    In the present investigation, 37 numbers of high sulphur tertiary coal samples from Meghalaya, India have been studied on the basis of proximate and ash analysis. Various statistical tools like Bivariant Analysis, Principal Component Analysis (PCA) and Hierarchical Clustering Analysis (HCA), and also the geochemical ...

  5. Learning to teach mathematical modelling in secondary and tertiary education (United States)

    Ferri, Rita Borromeo


    Since 2003 mathematical modelling in Germany is not only a topic for scientific disciplines in university mathematics courses, but also in school starting with primary school. This paper shows what mathematical modelling means in school and how it can be taught as a basis for complex modeling problems in tertiary education.

  6. Impact assessment of electronic mass communication in a tertiary ...

    African Journals Online (AJOL)

    The proliferation of computer networks and Internet access opened new communication channels such as blogs, websites, e-mail, social media and mobile apps. In view of the current economic recession in Nigeria, tertiary institutions are turning to information technology for educational and communications solutions to ...

  7. Indications for and outcomes of tertiary referrals in refractive surgery

    NARCIS (Netherlands)

    Patryn, Eliza K.; Vrijman, Violette; Nieuwendaal, Carla P.; van der Meulen, Ivanka J. E.; Mourits, Maarten P.; Lapid-Gortzak, Ruth


    To review the spectrum of disease, symptomatology, and management offered to patients referred for a second opinion after refractive surgery. A prospective cohort study was done on all patients referred from October 1, 2006, to September 30, 2011, to a tertiary eye clinic after refractive surgery of

  8. Equity in Tertiary Education in Central America : An Overview


    Bashir, Sajitha; Luque, Javier


    This paper analyzes the evolution in socio-economic and ethnic disparities in tertiary education attainment, participation, and completion and labor market outcomes in the six countries of Central America. There is evidence of differential progress, with Costa Rica, a middle-income country, and Nicaragua, a low-income country, having improved participation of low-income students in tertiar...

  9. Education and training in recreation management at tertiary ...

    African Journals Online (AJOL)

    Tertiary institutions should realise the gaps and opportunities that could be filled in recreation management training. The current article reviews literature focussing on the importance of recreation participation, the benefits of participation and the impact it has on society in order to lead a quality life. International and national ...

  10. Perception of patients attending a tertiary hospital in Nigeria about ...

    African Journals Online (AJOL)


    Jan 2, 2013 ... Background: Criteria for a good dental practice as expressed by patients have influence on their behavior in terms of compliance with clinical advice, less pain and anxiety and more utilization of dental care. Objective: To assess the opinion of patients attending the dental clinic of a tertiary hospital ...

  11. Cost analysis of tuberculosis treatment in two tertiary hospitals in ...

    African Journals Online (AJOL)

    Cost analysis of tuberculosis treatment in two tertiary hospitals in South-East Nigeria. ... Abia State University Medical Students' Association Journal ... How free is it? Several governmental and non-governmental agencies support tuberculosis treatment to make the services accessible and affordable to patients.

  12. managing tertiary institutions for the promotion of lifelong learning in ...

    African Journals Online (AJOL)

    Global Journal

    schools considering that each day gives birth to new challenges, problems and discoveries in the field of science and technology which have invariably altered the way in which certain tasks are carried out. Students of tertiary institutions therefore need to be provided with opportunities to upgrade and expand existing skills, ...

  13. Colonoscopy in a Tertiary Hospital in Nigeria | Ismaila | Journal of ...

    African Journals Online (AJOL)

    Methodology: Results of colonoscopies performed by surgeons in the endoscopic unit of the Jos University Teaching Hospital, a tertiary medical centre in Plateau State, Nigeria were retrospectively analysed for a period of 6 months. The diagnostic yield and findings were analyzed. Results: A total of 43 colonoscopies were ...

  14. Incidence, Pattern and Management of Ovarian Cancer at a Tertiary ...

    African Journals Online (AJOL)

    Background: The incidence of ovarian cancer is thought to be increasing in developing countries and little is known about the pattern and incidence of this disease in South‑East Nigeria. Aims: The objectives of the study were to determine the incidence, describe the pattern and management of ovarian cancer at a tertiary ...

  15. Patterns of antimicrobial prescribing in a tertiary care hospital in Oman

    National Research Council Canada - National Science Library

    Al-Yamani, Abdulrahman; Khamis, Faryal; Al-Zakwani, Ibrahim; Al-Noomani, Hamed; Al-Noomani, Jaleela; Al-Abri, Seif


    ... in a tertiary care hospital in Oman. Methods: We conducted a retrospective audit of the appropriateness of antimicrobial prescribing in patients admitted to acute care settings in a tertiary care hospital in Oman over a fourweek period...

  16. Three-dimensional isotropic fat-suppressed proton density-weighted MRI at 3 tesla using a T/R-coil can replace multiple plane two-dimensional sequences in knee imaging

    Energy Technology Data Exchange (ETDEWEB)

    Homsi, R.; Luetkens, J.A. [Bonn Univ. (Germany). Dept. of Radiology; Gieseke, J. [Philips Healthcare, Hamburg (Germany); and others


    To evaluate whether a 3D proton density-weighted fat-suppressed sequence (PDwFS) of the knee is able to replace multiplanar 2D-PDwFS. 52 patients (26 men, mean age: 41.9±14.5 years) underwent magnetic resonance imaging (MRI) of the knee at 3.0 Tesla using a T/R-coil. The imaging protocol included 3 planes of 2D-PDwFS (acquisition time (AT): 6:40 min; voxel sizes: 0.40-0.63 x 0.44-0.89 x 3 mm{sup 3}) and a 3D-PDwFS (AT: 6:31 min; voxel size: 0.63 x 0.68 x 0.63 mm{sup 3}). Homogeneity of fat suppression (HFS), artifacts, and image sharpness (IS) were evaluated on a 5-point scale (5[excellent] - 1[non-diagnostic]). The sum served as a measure for the overall image quality (OIQ). Contrast ratios (CR) compared to popliteal muscle were calculated for the meniscus (MEN), anterior (ACL) and posterior cruciate ligaments (PCL). In 13 patients who underwent arthroscopic knee surgery, two radiologists evaluated the presence of meniscal, ligamental and cartilage lesions to estimate the sensitivity and specificity of lesion detection. The CR was higher in the ACL, PCL and MEN in 3D- PDwFS compared to 2D-PDwFS (p<0.01 for ACL and PCL; p=0.07 for MEN). Compared to 2D images, the OIQ was rated higher in 3D-PDwFS images (p<0.01) due to fewer artifacts and HFS despite the lower IS (p<0.01). The sensitivity and specificity of lesion detection in 3D- and 2D-PDwFS were similar. Compared to standard multiplanar 2D-PDwFS knee imaging, isotropic high spatial resolution 3D-PDwFS of the knee at 3.0T can be acquired with high image quality in a reasonable scan time. Multiplanar reformations in arbitrary planes may serve as an additional benefit of 3D-PDwFS.

  17. Favorability for uranium in tertiary sedimentary rocks, southwestern Montana

    Energy Technology Data Exchange (ETDEWEB)

    Wopat, M A; Curry, W E; Robins, J W; Marjaniemi, D K


    Tertiary sedimentary rocks in the basins of southwestern Montana were studied to determine their favorability for potential uranium resources. Uranium in the Tertiary sedimentary rocks was probably derived from the Boulder batholith and from silicic volcanic material. The batholith contains numerous uranium occurrences and is the most favorable plutonic source for uranium in the study area. Subjective favorability categories of good, moderate, and poor, based on the number and type of favorable criteria present, were used to classify the rock sequences studied. Rocks judged to have good favorability for uranium deposits are (1) Eocene and Oligocene strata and undifferentiated Tertiary rocks in the western Three Forks basin and (2) Oligocene rocks in the Helena basin. Rocks having moderate favorability consist of (1) Eocene and Oligocene strata in the Jefferson River, Beaverhead River, and lower Ruby River basins, (2) Oligocene rocks in the Townsend and Clarkston basins, (3) Miocene and Pliocene rocks in the Upper Ruby River basin, and (4) all Tertiary sedimentary formations in the eastern Three Forks basin, and in the Grasshopper Creek, Horse Prairie, Medicine Lodge Creek, Big Sheep Creek, Deer Lodge, Big Hole River, and Bull Creek basins. The following have poor favorability: (1) the Beaverhead Conglomerate in the Red Rock and Centennial basins, (2) Eocene and Oligocene rocks in the Upper Ruby River basin, (3) Miocene and Pliocene rocks in the Townsend, Clarkston, Smith River, and Divide Creek basins, (4) Miocene through Pleistocene rocks in the Jefferson River, Beaverhead River, and Lower Ruby River basins, and (5) all Tertiary sedimentary rocks in the Boulder River, Sage Creek, Muddy Creek, Madison River, Flint Creek, Gold Creek, and Bitterroot basins.

  18. Seawater Chemistry Across Cretaceous-Tertiary Boundary (United States)

    Misra, S.; Turchyn, A. V.


    Continental weathering is recognized as one of the primary mechanisms moderating the concentration of CO2 in the atmosphere. Past carbon cycle perturbations, often associated with mass extinction events, recovered on a timescale of hundreds of thousands of years, broadly consistent with enhanced chemical weathering being the key moderating process. Since chemical weathering of continental rocks controls the delivery of cations to the oceans, records of seawater cation chemistry provide a powerful archive of this interplay and feedback between climate and weathering.The Cretaceous-Paleogene (K-Pg) boundary at 65.6 Ma is the last major mass extinction event. The two accepted drivers of K-Pg events were the geologically coeval eruption of Deccan Trap continental flood basalts and the meteorite impact at Chicxulub. The Chicxulub impact happened during a second pulse of Deccan traps volcanism. Thus, teasing apart the timing and dominant driver of the mass extinction and the recovery remains enigmatic. A key feature of the K-Pg event is the transient acidification of the global surface ocean that drove the collapse of the oceanic ecosystem. This surface ocean acidification was caused by `geologically instantaneous' influx of large quantities of acidic gases (viz. CO2, SO2) to the ocean-atmosphere system. We will present high-resolution records of Li, B, Mg, and Ca isotope (δ7Li, δ11B, δ26Mg, and δ44Ca, respectively) measured in single species foraminifera across the K-Pg boundary to assess the perturbation and the subsequent continental weathering feedback. The unique aspect of the proposed research is in the first direct reconstruction of seawater isotopic composition of elements intimately linked to the continental weathering cycle (Li, Mg, and Ca), and the carbon budget of the ocean-atmosphere system (Boron) across an event of rapid climate transition and recovery. Moreover, this will allow to fingerprint the timing of the acidic gas input to the atmosphere and to

  19. Policy Innovation and Tertiary Education Graduation Rates: A Cross-Country Analysis (United States)

    Delaney, Jennifer A.; Yu, Patricia


    This study extends Trow's theory of higher education development to examine changes in national-level tertiary education graduation rates. Applying Trow's framework we arrive at three stages: (1) elite systems with gross tertiary graduation rates less than 15%, (2) massified systems with gross tertiary graduation rates between 15% and 50%, and (3)…

  20. The Policy Determinants of Investment in Tertiary Education. OECD Economics Department Working Papers, No. 576 (United States)

    Martins, Joaquim Oliveira; Boarini, Romina; Strauss, Hubert; de la Maisonneuve, Christine; Saadi, Clarice


    This paper assesses how policies and institutions affect private returns to invest in tertiary human capital, the ability of individuals to finance this investment and the institutional characteristics of tertiary education systems. Focusing on core tertiary education services, the paper presents new measures of private returns to tertiary…

  1. Analysis of Management Practices in Lagos State Tertiary Institutions through Total Quality Management Structural Framework (United States)

    AbdulAzeez, Abbas Tunde


    This research investigated total quality management practices and quality teacher education in public tertiary institutions in Lagos State. The study was therefore designed to analyse management practices in Lagos state tertiary institutions through total quality management structural framework. The selected public tertiary institutions in Lagos…

  2. Army Leader Transitions Handbook (United States)

    2008-01-01 LEADER TRANSITION MODEL Leader Transitions Handbook 1 The Army Leader Transitions Handbook is designed to help leaders plan and...D-1) Managing transitions is a leadership responsibility. Leader transitions within the Army are significant events for any organization due to...current. Administrative skills - Brush up on personnel management , especially leader development. Know UCMJ, promotions, administrative discharge

  3. Addressing indigenous health workforce inequities: a literature review exploring 'best' practice for recruitment into tertiary health programmes. (United States)

    Curtis, Elana; Wikaire, Erena; Stokes, Kanewa; Reid, Papaarangi


    Addressing the underrepresentation of indigenous health professionals is recognised internationally as being integral to overcoming indigenous health inequities. This literature review aims to identify 'best practice' for recruitment of indigenous secondary school students into tertiary health programmes with particular relevance to recruitment of Māori within a New Zealand context. METHODOLOGY/METHODS: A Kaupapa Māori Research (KMR) methodological approach was utilised to review literature and categorise content via: country; population group; health profession focus; research methods; evidence of effectiveness; and discussion of barriers. Recruitment activities are described within five broad contexts associated with the recruitment pipeline: Early Exposure, Transitioning, Retention/Completion, Professional Workforce Development, and Across the total pipeline. A total of 70 articles were included. There is a lack of published literature specific to Māori recruitment and a limited, but growing, body of literature focused on other indigenous and underrepresented minority populations.The literature is primarily descriptive in nature with few articles providing evidence of effectiveness. However, the literature clearly frames recruitment activity as occurring across a pipeline that extends from secondary through to tertiary education contexts and in some instances vocational (post-graduate) training. Early exposure activities encourage students to achieve success in appropriate school subjects, address deficiencies in careers advice and offer tertiary enrichment opportunities. Support for students to transition into and within health professional programmes is required including bridging/foundation programmes, admission policies/quotas and institutional mission statements demonstrating a commitment to achieving equity. Retention/completion support includes academic and pastoral interventions and institutional changes to ensure safer environments for indigenous

  4. Gas turbine combustor transition (United States)

    Coslow, Billy Joe; Whidden, Graydon Lane


    A method of converting a steam cooled transition to an air cooled transition in a gas turbine having a compressor in fluid communication with a combustor, a turbine section in fluid communication with the combustor, the transition disposed in a combustor shell and having a cooling circuit connecting a steam outlet and a steam inlet and wherein hot gas flows from the combustor through the transition and to the turbine section, includes forming an air outlet in the transition in fluid communication with the cooling circuit and providing for an air inlet in the transition in fluid communication with the cooling circuit.

  5. Is the sword moss (Bryoxiphium) a preglacial Tertiary relict? (United States)

    Patiño, Jairo; Goffinet, Bernard; Sim-Sim, Manuela; Vanderpoorten, Alain


    The disjunction of floras between East Asia, Southeast North America, West North America, and Southwest Eurasia has been interpreted in terms of the fragmentation of a once continuous mixed mesophytic forest that occurred throughout the Northern Hemisphere due to the climatic and geological changes during the late Tertiary. The sword moss, Bryoxiphium, exhibits a distribution that strikingly resembles that of the mesophytic forest elements such as Liriodendron and is considered as the only living member of an early Tertiary flora in Iceland. These hypotheses are tested here using molecular dating analyses and ancestral area estimations. The results suggest that the extant range of Bryoxiphium results from the fragmentation of a formerly wider range encompassing North America and Southeast Asia about 10 million years ago. The split of continental ancestral populations is too recent to match with a continental drift scenario but is spatially and temporally remarkably congruent with that observed in Tertiary angiosperm relict species. The timing of the colonization of Iceland from Macaronesian ancestors, about two million years ago, is, however, incompatible with the hypothesis that Bryoxiphium is the only living member of an early Tertiary flora of the island. Alaska was recurrently colonized from East Asia. The ability of Bryoxiphium to overcome large oceanic barriers is further evidenced by its occurrence on remote oceanic archipelagos. In particular, Madeira was colonized twice independently from American and East Asian ancestors, respectively. The striking range disjunction of Bryoxiphium is interpreted in terms of its mating system, as the taxon exhibits a very singular pattern of spatial segregation of the sexes. Copyright © 2015 Elsevier Inc. All rights reserved.



    Stephen; Sahajanand; Rangalakshmi; Kasim


    AIMS : The aim of this retrospective study was to analyze the rate and chara cteristics of acute poisoning cases admitted to adult intensive care unit ( ICU ) in a tertiary care medical college hospital. We report clinical features , demographic data , laboratory results , mortality rate , and the results of our treatment in cases who ca me with the history of poisoning. METHODS: The study was done in patients admitted with his...

  7. Cryptosporidium and Giardia removal by secondary and tertiary wastewater treatment. (United States)

    Taran-Benshoshan, Marina; Ofer, Naomi; Dalit, Vaizel-Ohayon; Aharoni, Avi; Revhun, Menahem; Nitzan, Yeshayahu; Nasser, Abidelfatah M


    Wastewater disposal may be a source of environmental contamination by Cryptosporidium and Giardia. This study was conducted to evaluate the prevalence of Cryptosporidium oocysts and Giardia cysts in raw and treated wastewater effluents. A prevalence of 100% was demonstrated for Giardia cysts in raw wastewater, at a concentration range of 10 to 12,225 cysts L(-1), whereas the concentration of Cryptosporidium oocysts in raw wastewater was 4 to 125 oocysts L(-1). The removal of Giardia cysts by secondary and tertiary treatment processes was greater than those observed for Cryptosporidium oocysts and turbidity. Cryptosporidium and Giardia were present in 68.5% and 76% of the tertiary effluent samples, respectively, at an average concentration of 0.93 cysts L(-1) and 9.94 oocysts L(-1). A higher detection limit of Cryptosporidium oocysts in wastewater was observed for nested PCR as compared to immune fluorescent assay (IFA). C. hominis was found to be the dominant genotype in wastewater effluents followed by C. parvum and C. andersoni or C. muris. Giardia was more prevalent than Cryptosporidium in the studied community and treatment processes were more efficient for the removal of Giardia than Cryptosporidium. Zoonotic genotypes of Cryptosporidium were also present in the human community. To assess the public health significance of Cryptosporidium oocysts present in tertiary effluent, viability (infectivity) needs to be assessed.

  8. Mudflow utilization for construction materials of tertiary irrigation canal lining (United States)

    Azis, Subandiyah; Kustamar


    Mudflow in Siring Village, Sidoarjo Regency, Indonesia, has been in eruption since May 29, 2006. It still shows irregular large bursts which loaded in a sludge reservoir with capacity of 59 million m3. From 2007 until 2015, there were more than 20 studies which concluded that the mudflow could be used as a mixture of building materials. However, the studies were not detailed and needed further research. This research aims to investigate the use of mudflow as tertiary irrigation canal lining material. This research comes with several laboratory tests to obtain a mixture that is solid and water-resistant. The methods that were used are descriptive methods as follows: 1). Sampling of mudflow, to be analyzed in Material Testing Laboratory. 2). Sampling of soil at research site, to be analyzed in Soil Mechanics Laboratory 3). Mixing of materials which are consist of mudflow and other materials and doing strength test in the laboratory. 4). Installation of tertiary irrigation canal lining using materials that have been tested. 5). Observation of lining's strength inactive soil pressure-bearing and its impermeability. It is expected that the results of this research will be applied extensively throughout the tertiary irrigation canals, so mudflow can be utilized as raw materials that are environmentally friendly, which are able to help preserving the environment, also to reduce the removal of sand / rock in the river, which has been used for lining materials, that benefits in preventing damage to the river ecosystem.

  9. Tertiary Normal Faulting in the Canyon Range, Eastern Sevier Desert. (United States)

    Wills; Anders


    The contact between pre-Mesozoic and Tertiary rocks in the western Canyon Range, west-central Utah, has been interpreted as a large, low-angle normal fault that marks the breakaway zone of the hypothesized, basin-forming Sevier Desert detachment. Recent fieldwork suggests that the contact may in fact be depositional along much or all of its length. Deformational fabric in the supposed footwall likely traces to the Mesozoic Sevier orogeny rather than to Tertiary detachment faulting. Kinematic indicators at the range front are not generally consistent with low-angle normal-fault motion; instead, well-exposed high-angle faults are the dominant range-bounding structures. The Tertiary conglomerates of the western Canyon Range foothills, previously viewed as an evolving syntectonic deposit related to detachment faulting, are here reinterpreted as three distinct units that reflect different periods and tectonic settings. The pattern in these conglomerates, and in fault-offset gravity-slide deposits that mantle the western foothills, is consistent with block faulting and rotation along several generations of high-angle structures. Local seismic-reflection data lend qualitative support to this interpretation, and underscore the need to consider alternative working hypotheses for evolution of the Sevier Desert basin.

  10. Conceptualizing Transitions to Adulthood (United States)

    Wyn, Johanna


    This chapter provides an overview of theories of the transition to young adulthood. It sets out the argument for conceptual renewal and discusses some implications of new patterns of transition for adult education.

  11. Public Transit Stations (United States)

    Department of Homeland Security — fixed rail transit stations within the Continental United States, Alaska, Hawaii, the District of Columbia, and Puerto Rico. The modes of transit that are serviced...

  12. Biodiesel Mass Transit Demonstration (United States)


    The Biodiesel Mass Transit Demonstration report is intended for mass transit decision makers and fleet managers considering biodiesel use. This is the final report for the demonstration project implemented by the National Biodiesel Board under a gran...

  13. Cosmological phase transitions

    Energy Technology Data Exchange (ETDEWEB)

    Kolb, E.W. [Fermi National Accelerator Lab., Batavia, IL (United States)]|[Chicago Univ., IL (United States)


    If modern ideas about the role of spontaneous symmetry breaking in fundamental physics are correct, then the Universe should have undergone a series of phase transitions early in its history. The study of cosmological phase transitions has become an important aspect of early-Universe cosmology. In this lecture I review some very recent work on three aspects of phase transitions: the electroweak transition, texture, and axions.

  14. Quantum phase transitions

    Energy Technology Data Exchange (ETDEWEB)

    Sachdev, S. [Yale University, New Haven, CT (United States)


    Phase transitions are normally associated with changes of temperature but a new type of transition - caused by quantum fluctuations near absolute zero - is possible, and can tell us more about the properties of a wide range of systems in condensed-matter physics. Nature abounds with phase transitions. The boiling and freezing of water are everyday examples of phase transitions, as are more exotic processes such as superconductivity and superfluidity. The universe itself is thought to have passed through several phase transitions as the high-temperature plasma formed by the big bang cooled to form the world as we know it today. Phase transitions are traditionally classified as first or second order. In first-order transitions the two phases co-exist at the transition temperature - e.g. ice and water at 0 deg., or water and steam at 100 deg. In second-order transitions the two phases do not co-exist. In the last decade, attention has focused on phase transitions that are qualitatively different from the examples noted above: these are quantum phase transitions and they occur only at the absolute zero of temperature. The transition takes place atthe ''quantum critical'' value of some other parameter such as pressure, composition or magnetic field strength. A quantum phase transition takes place when co-operative ordering of the system disappears, but this loss of order is driven solely by the quantum fluctuations demanded by Heisenberg's uncertainty principle. The physical properties of these quantum fluctuations are quite distinct from those of the thermal fluctuations responsible for traditional, finite-temperature phase transitions. In particular, the quantum system is described by a complex-valued wavefunction, and the dynamics of its phase near the quantum critical point requires novel theories that have no analogue in the traditional framework of phase transitions. In this article the author describes the history of quantum phase


    Recently, two papers reported the use of solid-phase microextraction (SPME) with polydimethylsiloxane(PDMS)/Carboxen fibers to determine trace levels of methyl tertiary butyl ether (MTBE) and tertiary butyl alcohol (tBA) in water. Attempts were made to apply this technique to th...

  16. Modeling for transition management

    NARCIS (Netherlands)

    Chappin, E.J.L.; Dijkema, G.P.J.


    A framework for the modeling and simulation of transitions is presented. A transition, “substantial change in the state of a socio-technical system”, typically unfolds over a long timespan. We therefore suggest to use simulation to inform transition managers on the effect of their decisions.

  17. Origins of evolutionary transitions. (United States)

    Clarke, Ellen


    An 'evolutionary transition in individuality' or 'major transition' is a transformation in the hierarchical level at which natural selection operates on a population. In this article I give an abstract (i.e. level-neutral and substrate-neutral) articulation of the transition process in order to precisely understand how such processes can happen, especially how they can get started.

  18. Modeling for Transition Management

    NARCIS (Netherlands)

    Chappin, Emile J L; Dijkema, Gerard P.J.


    A framework for the modeling and simulation of transitions is presented. A transition, “substantial change in the state of a socio-technical system”, typically unfolds over a long timespan. We therefore suggest to use simulation to inform transition managers on the effect of their decisions.

  19. Transition to Adulthood (United States)

    ... a lot of ground to cover! But it’s essential ground, if the student’s transition to the adult ... of transition planning? Here’s a closer look at writing transition-related IEP goals. Students Get Involved ! Very ...

  20. Origins of evolutionary transitions

    Indian Academy of Sciences (India)

    An `evolutionary transition in individuality' or `major transition' is a transformation in the hierarchical level at which natural selection operates on a population. In this article I give an abstract (i.e. level-neutral and substrate-neutral) articulation of the transition process in order to precisely understand how such processes can ...

  1. Topological constraints are major determinants of tRNA tertiary structure and dynamics and provide basis for tertiary folding cooperativity. (United States)

    Mustoe, Anthony M; Brooks, Charles L; Al-Hashimi, Hashim M


    Recent studies have shown that basic steric and connectivity constraints encoded at the secondary structure level are key determinants of 3D structure and dynamics in simple two-way RNA junctions. However, the role of these topological constraints in higher order RNA junctions remains poorly understood. Here, we use a specialized coarse-grained molecular dynamics model to directly probe the thermodynamic contributions of topological constraints in defining the 3D architecture and dynamics of transfer RNA (tRNA). Topological constraints alone restrict tRNA's allowed conformational space by over an order of magnitude and strongly discriminate against formation of non-native tertiary contacts, providing a sequence independent source of folding specificity. Topological constraints also give rise to long-range correlations between the relative orientation of tRNA's helices, which in turn provides a mechanism for encoding thermodynamic cooperativity between distinct tertiary interactions. These aspects of topological constraints make it such that only several tertiary interactions are needed to confine tRNA to its native global structure and specify functionally important 3D dynamics. We further show that topological constraints are conserved across tRNA's different naturally occurring secondary structures. Taken together, our results emphasize the central role of secondary-structure-encoded topological constraints in defining RNA 3D structure, dynamics and folding. © The Author(s) 2014. Published by Oxford University Press on behalf of Nucleic Acids Research.

  2. Transition Theory – Sustainable Transition of Socio-Technical Systems

    DEFF Research Database (Denmark)

    Søndergård, Bent; Holm, Jesper; Stauning, Inger


    Theories of transition management, transition studies and social practise theory Applied to studies of hosuing and construction......Theories of transition management, transition studies and social practise theory Applied to studies of hosuing and construction...

  3. Transition path time distributions (United States)

    Laleman, M.; Carlon, E.; Orland, H.


    Biomolecular folding, at least in simple systems, can be described as a two state transition in a free energy landscape with two deep wells separated by a high barrier. Transition paths are the short part of the trajectories that cross the barrier. Average transition path times and, recently, their full probability distribution have been measured for several biomolecular systems, e.g., in the folding of nucleic acids or proteins. Motivated by these experiments, we have calculated the full transition path time distribution for a single stochastic particle crossing a parabolic barrier, including inertial terms which were neglected in previous studies. These terms influence the short time scale dynamics of a stochastic system and can be of experimental relevance in view of the short duration of transition paths. We derive the full transition path time distribution as well as the average transition path times and discuss the similarities and differences with the high friction limit.

  4. Adolescents with sickle cell anaemia: Experience in a private tertiary hospital serving a tertiary institution. (United States)

    John-Olabode, Sarah; Awodele, Ibironke; Oni, Omolade


    Many adolescents with sickle cell disease (SCD) have adjustment difficulties in the transition period from paediatric care to the adult system because they find themselves in unfamiliar waters where they have to learn to manage themselves. The aim of this study is to evaluate the prevalent crises and morbidities associated with SCD in adolescents in Babcock University Teaching Hospital (BUTH), to also assess the level of knowledge of these adolescents about SCD and to determine their emotional response to the disease. This was a retrospective review of case notes of adolescents with sickle cell anaemia that were seen in BUTH, from May 2013 to April 2014. Data extracted from the case notes was entered into a Microsoft (MS) Excel and analysed using descriptive statistics. Results were presented in tables. A total of 50 subjects were seen in the department during this study period. Vaso-occlusive crises in the form of bone pains (93.1%) were the commonest crises encountered. Associated morbidities were malaria 34 (85%), tonsilitis 1 (2.5%), pneumonia 1 (2.5%), leg ulcer 1 (2.5%), azotaemia 1 (2.5%) and subarachnoid haemorrhage 2 (5%). Majority (88%) had adequate knowledge about general health maintenance while knowledge on nutrition and appropriate analgesia use is still inadequate. Eleven (22%) had symptoms of depression, four (8%) had suicidal ideation while one (2%) had a history of attempted suicide. This study emphasizes the importance of psychosocial intervention as part of a comprehensive health management for people with SCD.

  5. Initiation of a medical toxicology consult service at a tertiary care children's hospital. (United States)

    Wang, George Sam; Monte, Andrew; Hatten, Benjamin; Brent, Jeffrey; Buchanan, Jennie; Heard, Kennon J


    Currently, only 10% of board-certified medical toxicologists are pediatricians. Yet over half of poison center calls involve children toxicology consultation is not common at children's hospitals. In collaboration with executive staff from Department of Pediatrics and Emergency Medicine, regional poison center, and our toxicology fellowship, we established a toxicology consulting service at our tertiary-care children's hospital. There were 139 consultations, and the service generated 13 consultations in the first month; median of 11 consultations per month thereafter (range 8-16). The service increased pediatric cases seen by the fellowship program from 30 to 94. The transition to a consult service required a culture change. Historically, call center advice was the mainstay of consulting practice and the medical staff was not accustomed to the availability of bedside medical toxicology consultations. However, after promotion of the service and full attending and fellowship coverage, consultations increased. In collaboration with toxicologists from different departments, a consultation service can be rapidly established. The service filled a clinical need that was disproportionately utilized for high acuity patients, immediately utilized by the medical staff and provided a robust pediatric population for the toxicology fellowship.

  6. Late Tertiary Petrified Wood from Nevada, USA: Evidence of Multiple Silicification Pathways

    Directory of Open Access Journals (Sweden)

    George E. Mustoe


    Full Text Available Late Tertiary fossil woods from the state of Nevada provide an opportunity for observing the mineralization sequences that cause buried wood to become permineralized. Oligocene and Miocene caldera basins contain abundant petrified wood that ranges in composition from incipient silicification to complete permineralization. Examination of specimens from 21 localities reveals that the petrifaction sequence can follow multiple pathways. Fossil wood specimens from a single stratum may have different mineralization; silicification may vary even within a single specimen. Despite these variations, several trends are evident. Features in Nevada specimens suggest that two fundamental processes are involved: early mineralization of cell walls, and later silica deposition in lumina, vessels, and rot pockets from groundwater that permeated these open spaces. The process of open-space filling may be analogous to the genesis of geodes and veins, where multiple episodes of hydrothermal precipitation may produce opal, chalcedony, and quartz as deposits within a single cavity. Silica polymorphs may coexist as primary precipitates, or they may originate from solid-state transformation of a single parent material. Relic lepisphere textures observed in some chalcedony wood specimens are evidence of opal→chalcedony transition. In Nevada, specimens that contain crystalline quartz, this mineral appears to have been formed by direct precipitation in open spaces, not from recrystallization of chalcedony. Opal-A has seldom been reported in fossil wood, but this amorphous material is fairly common in Nevada specimens.

  7. Bahrain’s tertiary education reform : a step towards sustainable economic development

    Directory of Open Access Journals (Sweden)

    Magdalena Karolak


    Full Text Available Bahrain has been experiencing along with other Gulf Council Cooperation countries a rapid development of its tertiary sector of education. The 2000's were marked by a boom in education with the opening of twelve private universities in this country of roughly 1 million inhabitants. Some institutions were locally based, while others worked in affiliation with foreign based universities. It is in sharp contrast with the 1990's, when only three public universities served as centers of higher education. The reasons behind this large-scale expansion of higher education include the growth of local and expatriate population, the planned transition from oil industry to a knowledge-based economy as well as the growing role of women in the workforce. All of these factors need to be addressed in order to assure a stable social and economic development, and education is the backbone of both. This paper examines the recent initiatives undertaken in Bahrain to monitor and ensure the quality of education of cross-border educational institutions as well as that of local education providers.

  8. An Investigation of Verticality in Tertiary Students’ Academic Writing Texts: A Systemic Functional Perspective

    Directory of Open Access Journals (Sweden)

    Vasemaca T. Ledua Alifereti


    Full Text Available This study, identifies, discusses and recommends specific linguistic features that can be explored by Non-Native English (NNE students studying at the University of the South Pacific (USP in Fiji to improve their academic writing texts. Firstly, the status of academic writing in relation to NNE speakers both globally and in Fiji is discussed. Secondly, two concepts ‘abstract and metaphorical’ mentioned to be lacking in USP student texts are described followed by an explanation of how the two concepts are acquired if viewed from three different perspectives. Thirdly, previous studies conducted that had explored the importance of building verticality in writing are presented. Although a number of studies have explored verticality, there are no records to show how it is represented in circumstantial elements. Next the Transitivity system which is the theoretical framework adopted by the study is discussed with a particular emphasis on Relational processes. It is claimed that abstract and metaphorical relations are made in Relational processes. Moreover, certain linguistic features closely associated with verticality are identified to elicit data. Additionally results are presented and discussed according to research questions asked. Findings prove that indeed circumstances are mostly incongruently realized in Relational clauses. In order to build verticality in tertiary students’ academic writing texts, one has to be able to understand abstract and metaphorical concepts and how they are linguistically realized in writing texts.

  9. Tertiary siRNAs mediate paramutation in C. elegans. (United States)

    Sapetschnig, Alexandra; Sarkies, Peter; Lehrbach, Nicolas J; Miska, Eric A


    In the nematode Caenorhabditis elegans, different small RNA-dependent gene silencing mechanisms act in the germline to initiate transgenerational gene silencing. Piwi-interacting RNAs (piRNAs) can initiate transposon and gene silencing by acting upstream of endogenous short interfering RNAs (siRNAs), which engage a nuclear RNA interference (RNAi) pathway to trigger transcriptional gene silencing. Once gene silencing has been established, it can be stably maintained over multiple generations without the requirement of the initial trigger and is also referred to as RNAe or paramutation. This heritable silencing depends on the integrity of the nuclear RNAi pathway. However, the exact mechanism by which silencing is maintained across generations is not understood. Here we demonstrate that silencing of piRNA targets involves the production of two distinct classes of small RNAs with different genetic requirements. The first class, secondary siRNAs, are localized close to the direct target site for piRNAs. Nuclear import of the secondary siRNAs by the Argonaute HRDE-1 leads to the production of a distinct class of small RNAs that map throughout the transcript, which we term tertiary siRNAs. Both classes of small RNAs are necessary for full repression of the target gene and can be maintained independently of the initial piRNA trigger. Consistently, we observed a form of paramutation associated with tertiary siRNAs. Once paramutated, a tertiary siRNA generating allele confers dominant silencing in the progeny regardless of its own transmission, suggesting germline-transmitted siRNAs are sufficient for multigenerational silencing. This work uncovers a multi-step siRNA amplification pathway that promotes germline integrity via epigenetic silencing of endogenous and invading genetic elements. In addition, the same pathway can be engaged in environmentally induced heritable gene silencing and could therefore promote the inheritance of acquired traits.

  10. From Ramachandran Maps to Tertiary Structures of Proteins. (United States)

    DasGupta, Debarati; Kaushik, Rahul; Jayaram, B


    Sequence to structure of proteins is an unsolved problem. A possible coarse grained resolution to this entails specification of all the torsional (Φ, Ψ) angles along the backbone of the polypeptide chain. The Ramachandran map quite elegantly depicts the allowed conformational (Φ, Ψ) space of proteins which is still very large for the purposes of accurate structure generation. We have divided the allowed (Φ, Ψ) space in Ramachandran maps into 27 distinct conformations sufficient to regenerate a structure to within 5 Å from the native, at least for small proteins, thus reducing the structure prediction problem to a specification of an alphanumeric string, i.e., the amino acid sequence together with one of the 27 conformations preferred by each amino acid residue. This still theoretically results in 27(n) conformations for a protein comprising "n" amino acids. We then investigated the spatial correlations at the two-residue (dipeptide) and three-residue (tripeptide) levels in what may be described as higher order Ramachandran maps, with the premise that the allowed conformational space starts to shrink as we introduce neighborhood effects. We found, for instance, for a tripeptide which potentially can exist in any of the 27(3) "allowed" conformations, three-fourths of these conformations are redundant to the 95% confidence level, suggesting sequence context dependent preferred conformations. We then created a look-up table of preferred conformations at the tripeptide level and correlated them with energetically favorable conformations. We found in particular that Boltzmann probabilities calculated from van der Waals energies for each conformation of tripeptides correlate well with the observed populations in the structural database (the average correlation coefficient is ∼0.8). An alpha-numeric string and hence the tertiary structure can be generated for any sequence from the look-up table within minutes on a single processor and to a higher level of accuracy

  11. Dioxin distribution in a tertiary sedimentary clay profile (Germany)

    Energy Technology Data Exchange (ETDEWEB)

    Schmitz, M.; Bernau, S.; Germann, K. [Technische Univ. Berlin (Germany). Inst. fuer angewandte Geowissenschaften, Abt. Oekonomische Geologie; Pernak, P. [Dr. Fechter GmbH, Umweltlabor und Ingenieurbuero, Berlin (Germany); Rotard, W. [Technische Univ. Berlin (Germany). Inst. fuer Technischen Umweltschutz, Abt. Klimachemie


    Since 1999 dioxin of possibly natural origin has repeatedly been found in kaolinitic clays of different countries. Until today it is not generally agreed how the dioxin was generated. The aim of this study is to determine the relationship between the dioxin content and the mineralogical composition of clays as well as the distribution of dioxin in different grain size fractions and its behaviour within a profile of Tertiary kaolinitic clays from Germany. The study may provide a hypothesis of dioxin formation, based on the genesis of the clays.

  12. Loop Entropy Assists Tertiary Order: Loopy Stabilization of Stacking Motifs

    Directory of Open Access Journals (Sweden)

    Daniel P. Aalberts


    Full Text Available The free energy of an RNA fold is a combination of favorable base pairing and stacking interactions competing with entropic costs of forming loops. Here we show how loop entropy, surprisingly, can promote tertiary order. A general formula for the free energy of forming multibranch and other RNA loops is derived with a polymer-physics based theory. We also derive a formula for the free energy of coaxial stacking in the context of a loop. Simulations support the analytic formulas. The effects of stacking of unpaired bases are also studied with simulations.

  13. Pediatric Mortality in a Rural Tertiary Care Center in Liberia


    Carmelle Tsai; Camila B. Walters; John Sampson; Francis Kateh; Chang, Mary P.


    Liberia is a low‐income country in West Africa that has faced significant challenges, including a civil war and the recent Ebola epidemic. Little data exists on the more current post‐war and pre‐Ebola trends of child health in Liberia in the rural setting. This study is a retrospective chart review of pediatric mortality in 2013 at a rural tertiary care center in Liberia, 10 years post‐war. From January 2013 to December 2013, there were 50 pediatric deaths, or 5.4% of the 920 total pediatric ...

  14. Transformation of Tertiary Benzyl Alcohols into the Vicinal Halo-Substituted Derivatives Using N-Halosuccinimides

    Directory of Open Access Journals (Sweden)

    Njomza Ajvazi


    Full Text Available The efficiency of direct conversion of tertiary alcohols bearing a β-hydrogen atom to vicinal halohydrins—chlorohydrins and bromohydrins—under green reaction conditions was tested preliminarily on model tertiary benzyl alcohols. Tertiary alcohols were successfully directly halogenated to vicinal halohydrins with N-halosuccinimide in aqueous media. The efficiency of the reaction in water was significantly improved in the presence of sodium dodecyl sulphate as the surfactant.

  15. Sustainable development of low income countries through investment in tertiary education


    Kundu, Nobinkhor; Banu, Asma


    To counterbalance the challenges of globalization, raising the superiority of our tertiary education to global standard is very significant. Tertiary education is the essential enabler of the human capital of the twenty-first century that demands a set of new competencies. It draws lessons for developing countries where policy makers have set out procedure to build a tertiary education in which higher priorities and future strategies would form the center of the sustainable development strate...

  16. Major structural controls on the distribution of pre-Tertiary rocks, Nevada Test Site vicinity, southern Nevada

    Energy Technology Data Exchange (ETDEWEB)

    Cole, J.C.


    The lateral and vertical distributions of Proterozoic and Paleozoic sedimentary rocks in southern Nevada are the combined products of original stratigraphic relationships and post-depositional faults and folds. This map compilation shows the distribution of the pre-Tertiary rocks in the region including and surrounding the Nevada Test Site. It is based on considerable new evidence from detailed geologic mapping, biostratigraphic control, sedimentological analysis, and a review of regional map relationships. Proterozoic and Paleozoic rocks of the region record paleogeographic transitions between continental shelf depositional environments on the east and deeper-water slope-facies depositional environments on the west. Middle Devonian and Mississippian sequences, in particular, show strong lateral facies variations caused by contemporaneous changes in the western margin of North America during the Antler orogeny. Sections of rock that were originally deposited in widely separated facies localities presently lie in close proximity. These spatial relationships chiefly result from major east- and southeast-directed thrusts that deformed the region in Permian or later time. Somewhat younger contractional structures are identified within two irregular zones that traverse the region. These folds and thrusts typically verge toward the west and northwest and overprint the relatively simple pattern of the older contractional terranes. Local structural complications are significant near these younger structures due to the opposing vergence and due to irregularities in the previously folded and faulted crustal section. Structural and stratigraphic discontinuities are identified on opposing sides of two north-trending fault zones in the central part of the compilation region north of Yucca Flat. The origin and significance of these zones are enigmatic because they are largely covered b Tertiary and younger deposits. These faults most likely results from significant lateral

  17. Economic Transition and Growth


    Phillips, Peter C.B.; Donggyu Sul


    Some extensions of neoclassical growth models are discussed that allow for cross section heterogeneity among economies and evolution in rates of technological progress over time. The models offer a spectrum of transitional behavior among economies that includes convergence to a common steady state path as well as various forms of transitional divergence and convergence. Mechanisms for modeling such transitions and measuring them econometrically are developed in the paper. A new regression tes...

  18. Transitions in Mathematics Education

    National Research Council Canada - National Science Library

    Verschaffel, Ghislaine GueudetMarianna BoschAndrea A. diSessaOh Nam KwonLieven


    .... The book focuses on research in the area of mathematics education, and starts out with a literature review, describing the epistemological, cognitive, institutional and sociocultural perspectives on transition...

  19. Transit Benefit Program Data - (United States)

    Department of Transportation — This data set contains information about any US government agency participating in the transit benefits program, funding agreements, individual participating Federal...

  20. Halitosis amongst students in tertiary institutions in Lagos state. (United States)

    Arinola, J E; Olukoju, O O


    Halitosis is defined as a noticeable unpleasant odor from the mouth. It is a medico-social problem that affects a significant number of people around the world. Research reveals that nearly 50% of the adult population has halitosis. To determine level of awareness of halitosis and prevalence of the condition amongst students in tertiary institutions as a baseline survey. For this project, 100 students from three tertiary institutions in Lagos state were chosen: University of Lagos, Lagos State University, Ojo campus and Yaba College of Technology. A semi-structured questionnaire and practical testing/diagnostic tool were utilized. Data collected was collated and analyzed using Microsoft Excel 2007 and SPSS statistical software. Most of the respondents were single and Christian. Level of awareness of halitosis was high. Results showed that 15%, 2% and 22% from UNILAG, LASU and YCT respectively said they had halitosis. Using the diagnostic tool, 6%, 8% and 2% respectively were positive for halitosis. There is high level of awareness of halitosis among the respondents. The prevalence of the disorder is low, however, it is recommended that enlightenment campaigns be mounted in schools to improve level of awareness and treatment seeking.

  1. Accuracy of prenatal diagnosis in a tertiary fetal medicine unit. (United States)

    Kyle, Pippa M; Coghlan, Peter; Matthews, Jeannie; de Ryke, Rex; Reid, Rosemary


    To establish the accuracy of prenatal diagnosis in a tertiary referral fetal medicine unit by comparing those diagnoses made prenatally with diagnoses made at birth until discharge, and with postmortem information from cases that resulted in termination, intrauterine, or neonatal death. All cases seen in the Fetal Medicine Unit between 1 June 2004 and 30 November 2005 were collected prospectively and sorted according to diagnosis. Relevant outcome data for these pregnancies were collected including postmortem information. 681 cases seen which accounted for 1219 visits. 198 were classified prenatally as a major abnormality, 46 cases minor, 56 with raised nuchal translucency, and 381 no abnormality. Outcome details were not available for analysis in two cases. Therefore 679 (99.7%) cases were available (711 out of 713 fetuses). Of the liveborns, 93.6% of the prenatal diagnoses were confirmed, 5.1% were resolved (predominantly soft markers), and 1.3% resulted in an additional major abnormality that had a significant clinical effect. Postmortem examinations were performed on 52% fetal or neonatal deaths with a normal or unknown karyotype. There was one new finding at postmortem that changed the fetal medicine diagnosis significantly. Accuracy of prenatal diagnosis in a tertiary fetal medicine unit is high. Parents and staff need to be aware that not all abnormalities will be detected prenatally, but inaccurate diagnosis is uncommon. Clinical indicators for benchmarking need to be developed.

  2. Tertiary Intratumor Lymphoid Tissue in Colo-Rectal Cancer

    Energy Technology Data Exchange (ETDEWEB)

    Bergomas, Francesca [Department of Immunology and Inflammation, IRCCS Humanitas Clinical Institute, Via Manzoni 56, 20089 Rozzano, Milan (Italy); Grizzi, Fabio [Laboratory of Molecular Gastroenterology, IRCCS Humanitas Clinical Institute, Via Manzoni 56, 20089 Rozzano, Milan (Italy); Doni, Andrea; Pesce, Samantha [Department of Immunology and Inflammation, IRCCS Humanitas Clinical Institute, Via Manzoni 56, 20089 Rozzano, Milan (Italy); Laghi, Luigi [Laboratory of Molecular Gastroenterology, IRCCS Humanitas Clinical Institute, Via Manzoni 56, 20089 Rozzano, Milan (Italy); Department of Gastroenterology, IRCCS Humanitas Clinical Institute, Via Manzoni 56, 20089 Rozzano, Milan (Italy); Allavena, Paola [Department of Immunology and Inflammation, IRCCS Humanitas Clinical Institute, Via Manzoni 56, 20089 Rozzano, Milan (Italy); Mantovani, Alberto [Department of Immunology and Inflammation, IRCCS Humanitas Clinical Institute, Via Manzoni 56, 20089 Rozzano, Milan (Italy); Department of Translational Medicine, University of Milan, Milan 20089 (Italy); Marchesi, Federica, E-mail: [Department of Immunology and Inflammation, IRCCS Humanitas Clinical Institute, Via Manzoni 56, 20089 Rozzano, Milan (Italy)


    Ectopic (or tertiary) lymphoid tissue develops at sites of inflammation or infection in non lymphoid organs and is associated with chronic inflammation. In colon mucosa, small lymphoid aggregates are already present in homeostatic conditions, as part of the gut-associated lymphoid tissue and play an essential role in the immune response to perturbations of the mucosal microenvironment. Despite the recognized role of inflammation in tumor progression, the presence and biological function of lymphoid tissue in cancer has been poorly investigated. We identified aggregates of lymphocytes resembling tertiary lymphoid tissue in human colorectal cancer specimens; intratumor accumulations of lymphocytes display a high degree of compartmentalization, with B and T cells, mature dendritic cells and a network of CD21{sup +} follicular dendritic cells (FDC). We analyzed the adaptation of colon lymphoid tissue in a murine model of colitis-associated cancer (AOM/DSS). B cell follicle formation increases in the context of the chronic inflammation associated to intestinal neoplasia, in this model. A network of lymphatic and haematic vessels surrounding B cell follicles is present and includes high endothelial venules (HEV). Future task is to determine whether lymphoid tissue contributes to the persistence of the tumor-associated inflammatory reaction, rather than represent a functional immune compartment, potentially participating to the anti tumor response.

  3. Tertiary Intratumor Lymphoid Tissue in Colo-Rectal Cancer

    Directory of Open Access Journals (Sweden)

    Federica Marchesi


    Full Text Available Ectopic (or tertiary lymphoid tissue develops at sites of inflammation or infection in non lymphoid organs and is associated with chronic inflammation. In colon mucosa, small lymphoid aggregates are already present in homeostatic conditions, as part of the gut-associated lymphoid tissue and play an essential role in the immune response to perturbations of the mucosal microenvironment. Despite the recognized role of inflammation in tumor progression, the presence and biological function of lymphoid tissue in cancer has been poorly investigated. We identified aggregates of lymphocytes resembling tertiary lymphoid tissue in human colorectal cancer specimens; intratumor accumulations of lymphocytes display a high degree of compartmentalization, with B and T cells, mature dendritic cells and a network of CD21+ follicular dendritic cells (FDC. We analyzed the adaptation of colon lymphoid tissue in a murine model of colitis-associated cancer (AOM/DSS. B cell follicle formation increases in the context of the chronic inflammation associated to intestinal neoplasia, in this model. A network of lymphatic and haematic vessels surrounding B cell follicles is present and includes high endothelial venules (HEV. Future task is to determine whether lymphoid tissue contributes to the persistence of the tumor-associated inflammatory reaction, rather than represent a functional immune compartment, potentially participating to the anti tumor response.


    Directory of Open Access Journals (Sweden)

    Aunurrahman Aunurrahman


    Full Text Available For tertiary English as a Foreign Language (EFL students, academic writing is not an easy task. It requires knowledge of the academic writing genres with their particular linguistic features. Moreover, academic writing demands good critical thinking. This research aims to explore the students' academic writing competencies that also focus on critical thinking. The research involved thirty-six first-year tertiary EFL students from a regular class of a private university in Pontianak, West Kalimantan, Indonesia. The source for data collection was the students’ texts. Three texts were selected and the students were categorized into low, medium, and high levels of writing achievement. The text analysis utilized functional grammar rooted in systemic functional linguistics (Emilia, 2014. The analysis shows that the students, regardless of their levels of writing achievement, have little control over the schematic structure and linguistic features of an argumentative writing. The text analysis also shows that the students’ texts have some limitations as regards their critical thinking capacity. Still, a few examples of academic language were detected in the texts. The findings suggest that the lecturer should incorporate explicit teaching and cooperative learning activities to alleviate the students' difficulties and develop their academic writing and critical thinking capacity.

  5. Tertiary Intratumor Lymphoid Tissue in Colo-Rectal Cancer (United States)

    Bergomas, Francesca; Grizzi, Fabio; Doni, Andrea; Pesce, Samantha; Laghi, Luigi; Allavena, Paola; Mantovani, Alberto; Marchesi, Federica


    Ectopic (or tertiary) lymphoid tissue develops at sites of inflammation or infection in non lymphoid organs and is associated with chronic inflammation. In colon mucosa, small lymphoid aggregates are already present in homeostatic conditions, as part of the gut-associated lymphoid tissue and play an essential role in the immune response to perturbations of the mucosal microenvironment. Despite the recognized role of inflammation in tumor progression, the presence and biological function of lymphoid tissue in cancer has been poorly investigated. We identified aggregates of lymphocytes resembling tertiary lymphoid tissue in human colorectal cancer specimens; intratumor accumulations of lymphocytes display a high degree of compartmentalization, with B and T cells, mature dendritic cells and a network of CD21+ follicular dendritic cells (FDC). We analyzed the adaptation of colon lymphoid tissue in a murine model of colitis-associated cancer (AOM/DSS). B cell follicle formation increases in the context of the chronic inflammation associated to intestinal neoplasia, in this model. A network of lymphatic and haematic vessels surrounding B cell follicles is present and includes high endothelial venules (HEV). Future task is to determine whether lymphoid tissue contributes to the persistence of the tumor-associated inflammatory reaction, rather than represent a functional immune compartment, potentially participating to the anti tumor response. PMID:24213222

  6. Cervical pap smear- A prospective study in a tertiary hospital

    Directory of Open Access Journals (Sweden)

    S Pudasaini


    Full Text Available Background: Cervical cancer is a leading cause of mortality and morbidity among women worldwide and most common gynaecological cancer in developing countries. Papanicolaou smear is a simple and cost effective screening test for cervical cancer. The aim of this study is to evaluate and interpret the cervical pap smear cytology in a tertiary hospital. The interpretation and reporting of the pap smear is based on 2001Bethesda system.Materials and methods: This is a prospective study conducted in a tertiary hospital, Nepal Medical College over a period of two and a half years (January 2013 to June 2015. All cervical pap smears received in the department of Pathology in the study period were included.Results: A total of 4160 cervical pap smears were reported in the study period. Majority of the cases were Negative for Intraepithelial lesion or malignancy (87.9%. Bacterial vaginosis, atrophy and reactive cellular changes associated with inflammation were seen in 5.3%, 2.4% and 1.5% cases respectively.   Epithelial cell abnormalities (0.5% include Atypical squamous cells of undetermined significance, Low grade squamous intraepithelial lesion and High grade intraepithelial lesion. 88% of Low grade squamous intraepithelial lesion was seen in reproductive age group (20-45 years.Conclusion: Cervical cancer is the most common gynaecological cancer in the developing countries. Pap smear is the simple and cost effective screening tool to detect pre invasive cervical epithelial lesions.

  7. Pedagogical Study into Tertiary Learning Styles in Vietnam

    Directory of Open Access Journals (Sweden)

    Barry Ramsay


    Full Text Available Pedagogical studies for tertiary students in Vietnam are limited and no comparative benchmarking studies with other Asian tertiary students found. As a means to fill this gap and provide a better understanding the following study using Biggs (1987c Study Process Questionnaire (SPQ, a 42-item self-report survey consisting of ratings on a 5-point scale to questions relating to respondents' study motivations and their usual study patterns was conducted with 355 respondents. Findings were consistent with Hong Kong students and supports studies carried out in other countries by Kemper et al. (1989, Kemper and Gow (1991, Niles (1995, Volet and Renshaw (1996, Ramburuth (2001 and Hua, Williams and Hoi (2007. Despite learning in a “rote” manner during their formative years, students have adapted to deeper learning approaches although there is a still a slight but insignificant bias to surface learning. They desire to achieve and get good marks although strategy is limiting their progress. According to Biggs, this is commonly caused by a language problem.

  8. The Effects of Deformation on Isovector Electromagnetic and Weak Transition Strengths (United States)

    Zamick, Larry; Auerbach, Naftali


    The summed strength for transitions from the ground state of ^12C via the operators st, lt, rY^1t, r[Y^1s]^λt are calculated using the ΔN=0 rotational model. If we choose the z component of the isospin operator t_z, the above operators are relevant to electromagnetic transitions; if we choose t+ they are relevant to weak transitions such as neutrino capture. In going from the spherical limit to the asymptotic (oblate) limit the strength for the operator s τ decreases steaddily to zero; the strength for the operator l τ (scissors mode) increases by a factor of three. For the last three operators - isovector dipole, spin dipole and orbital dipole (including the twist mode) it is shown that the summed strength is independent of deformation . The main difference in the behaviour is that for the first two operators we have in-shell transitions whereas for the last three operators the transitions are out of shell. For the last three operators the results are more general - summed strength is independent of whatever configuration is chosen with the constraint that the valence particles are in the 0p shell and the mean square radii for p_3/2 and p_1/2 are the same.


    Directory of Open Access Journals (Sweden)

    Chintha Sujatha


    Full Text Available BACKGROUND Needlestick Injury (NSI is a major occupational health and safety issue among Healthcare Workers (HCWs. In India, incidence of NSI is high, but surveillance is poor with scarce authentic data. The aim of the study is to determine the occurrence of NSI, its associated factors and assessment of knowledge and practice of preventive measures and post exposure prophylaxis among HCWs in a tertiary care hospital in Kerala. MATERIALS AND METHODS A cross-sectional study was conducted among 515 HCWs who included doctors, house surgeons, final year medical students, nurses, student nurses and lab technicians of a government sector tertiary care hospital in Kerala. All HCWs of the institution present during the study time were included and only those unwilling to participate excluded. Ethical clearance and administrative permission was obtained along with informed consent from subjects after ensuring confidentiality. Content validated, structured questionnaire consisting of questions regarding demographic data, incidence and prevalence of needlestick injury, circumstances leading to it, response of subjects to NSI and knowledge of study subjects on post exposure prophylaxis was administered to the study subjects. The technique of data collection was self-reporting by the study subjects. Data collected was analysed using statistical software Epi Info 7. RESULTS Overall, 55.7% HCWs had sustained at least one NSI in this hospital, while 35% of them had a NSI during the current year. NSIs were sustained during blood withdrawal (34%, injections (20.5%, suturing (20.2% and cannula insertion (12%. Recapping the needle (26% was the most frequent cause followed by collision with others (24%, manipulation of needle in patient (23% and during/in transit to disposal (10%. Majority (84% did not report the incident, 8.4% underwent post exposure follow up, 82% of the HCWs were fully hepatitis B vaccinated, 44% had received training, 62% used gloves, 49

  10. Good Transitions = Great Starts! (United States)

    Our Children: The National PTA Magazine, 2012


    The smooth transition of outgoing and incoming board members and officers is of vital importance and can determine the PTA's success for years to come. The transition process is the responsibility of both incoming and outgoing officers and board members. It gives closure to those leaving their positions and allows those coming in to be properly…

  11. Successive Transitions in Ecodesign

    DEFF Research Database (Denmark)

    Boks, Casper; McAloone, Tim C.


    , into acknowledged scientific research regarding technology transfer and commercialisation. This paper proposes that this maturing process took place through a number of transitions; this is illustrated by discussing characteristic aspects of each transition, together providing a historic account of how academic...

  12. Transitive probabilistic CLIR models.

    NARCIS (Netherlands)

    Kraaij, W.; de Jong, Franciska M.G.


    Transitive translation could be a useful technique to enlarge the number of supported language pairs for a cross-language information retrieval (CLIR) system in a cost-effective manner. The paper describes several setups for transitive translation based on probabilistic translation models. The

  13. Urban renewal in transition

    NARCIS (Netherlands)

    Stouten, P.


    Urban renewal in transition consists revised and enlarged version of two papers. The first paper 'urban renewal and restructuring: between economie and social renewal' had been presented at the conference 'Labour on the move and transitions in the building process', organlzed by the Bartlett School

  14. Generalizing smooth transition autoregressions

    DEFF Research Database (Denmark)

    Chini, Emilio Zanetti

    We introduce a variant of the smooth transition autoregression - the GSTAR model - capable to parametrize the asymmetry in the tails of the transition equation by using a particular generalization of the logistic function. A General-to-Specific modelling strategy is discussed in detail...

  15. Spectrum of intracranial tumours in a tertiary health carefacility: Our ...

    African Journals Online (AJOL)

    Medulloblastoma accounted for 18%.(10).Of the cases of Gliomas, majority(52%) fell under WHO grade II. (38%)of the Meningioma were of the mixed type while 25% had transitional type. Conclusion: astrocytomas was the commonest brain tumour.

  16. Ethical considerations in transition. (United States)

    Kaufman, Hannah; Horricks, Laurie; Kaufman, Miriam


    The objective of this paper is to explore ethical issues in the provision of transitional care. Using five case studies a number of ethical issues in transition and transition care are discussed. These issues include: 1) preserving, promoting and ensuring dignity and respect for patients; 2) fostering and supporting the trusting relationships that young people and their parents have for pediatric providers to their new adult providers by using a graduated system of transfer; 3) recognizing graduated capacity; 4) promoting autonomy and self-management; 5) duties of beneficence and non-maleficence; 6) truthtelling; 7) duty to provide developmentally appropriate care; and 8) duty of pediatric providers to advocate for transitioning patients in the adult system. Attention to the ethical issues surrounding these complex cases has the potential to positively influence a successful transition to adult-oriented health care.

  17. Contemporary Transitional Justice

    DEFF Research Database (Denmark)

    Gissel, Line Engbo


    This article studies the contemporary expression of transitional justice, a field of practice through which global governance is exercised. It argues that transitional justice is being normalised, given the normative and empirical de-legitimisation of its premise of exceptionalism. The article...... theorises exceptionalism and normalcy in transitional justice and identifies three macro-level causes of normalisation: the legalisation, internationalisation, and professionalization of the field. This argument is illustrated by a study of Uganda’s trajectory of transitional justice since 1986. Across five...... phases of transitional justice, processes of legalisation, internationalisation, and professionalization have contributed to the gradual dismantling of the country’s exceptional justice. The case demonstrates, further, that normalization is a contested and incomplete process....

  18. The Performance in Context Model: A 21st Century Tertiary Dance Teaching Pedagogy (United States)

    Stevens, Kym; Huddy, Avril


    Despite tertiary institutions acknowledging that reflective practice is an essential component of undergraduate dance teacher training, there is often a disparity between the tertiary students' reflective skills and the more sophisticated reflective ability needed to navigate the twenty-first-century workforce. This paper charts the evolution of a…

  19. Framework of Assessment for the Evaluation of Thinking Skills of Tertiary Level Students (United States)

    Heng, Chan Swee; Ziguang, Yan


    In the 21st century, students are required to master thinking skills in order to deal with many situations that arise in the tertiary environment which later would translate into the workplace. Nowadays, thinking skills play a vital role in tertiary education. To provide an approach for teachers, this paper identifies a 4-step model that can be…

  20. Blended Learning and Team Teaching: Adapting Pedagogy in Response to the Changing Digital Tertiary Environment (United States)

    Crawford, Renée; Jenkins, Louise


    Increased accessibility of advanced technology, the targeted use of online learning platforms, student flexible learning expectations and the pressures of faculty budget constraints and priorities have called into question the effectiveness of traditional tertiary teaching and learning models. The tertiary education context must evolve at a pace…

  1. Widening Access to Tertiary Education for Women in Ghana through Distance Education (United States)

    Kwapong, Olivia Adwoa Tiwaah Frimpong


    Distance education (DE) is seen as a tool for widening access to education at all levels. It is an educational tool that breaks most of the divides in education--age, gender, race, income, space, time etc. For the past decades, irrespective of the extensive expansion of tertiary institutions in the country, provision of tertiary education in Ghana…

  2. Who Has to Pay for Their Education? Evidence from European Tertiary Education (United States)

    Lim, Gieyoung; Kim, Chong-Uk


    In this article, we investigate a positive tertiary education externality in 18 European countries. Using a simple Cobb-Douglas-type production function with constant returns to scale, we find that there are positive spillover effects from tertiary education in European countries. According to our model prediction, on average, 72,000 new employed…

  3. Emotional Intelligence and the Conflict Resolution Repertoire of Couples in Tertiary Institutions in Imo State (United States)

    Nnodum, B. I.; Ugwuegbulam, C. N.; Agbaenyi, I. G.


    This study is a descriptive survey that investigated the relationship between emotional intelligence and conflict resolution repertoire of couples in tertiary institutions. A sample of 250 married people were drawn from the population of couples in tertiary institutions in Imo State. Two researcher made and validated instruments were used in…

  4. Willing and Enabled: The Academic Outcomes of a Tertiary Enabling Program in Regional Australia (United States)

    Andrewartha, Lisa; Harvey, Andrew


    This paper examines the achievement levels of students undertaking the Tertiary Enabling Program (TEP) at La Trobe University. The TEP is an alternative pathway program that traverses multiple institutions, campuses, and disciplinary areas, and is designed to prepare a diverse student cohort for tertiary study. The Program integrates several…

  5. Inside the Collaborative Inter-Arts Improvisatory Process: Tertiary Music Students' Perspectives (United States)

    Blom, Diana


    While research has explored aspects of inter-arts collaboration at professional and primary level, there is little on inter-arts collaboration in the tertiary environment. This article explores aspects of the learning of tertiary music students undertaking a short-term collaborative inter-arts improvisation project with dance and theater peers,…

  6. The Teaching of English in Tasmania: Building Links between Senior Secondary and Tertiary Teachers (United States)

    Fletcher, Lisa; Clarke, Robert; Crane, Ralph; Gaby, Rosemary; Milthorpe, Naomi; Stark, Hannah


    This article tells the story of two projects initiated by the University of Tasmania's English program, which were designed to investigate and improve the pathway from pre-tertiary to tertiary English studies in the state: the First Year English Survey (2012-2014) and the Teaching of English in Tasmania Community of Practice (TETCoP). The authors…

  7. Tertiary Educators' Voices in Australia and South Africa: Experiencing and Engaging in African Music and Culture (United States)

    Joseph, Dawn


    Music tertiary educators can foster positive experiences that promote diversity, enhance intercultural and cross-cultural understanding through our teaching. Through findings of interview data of tertiary music educators' understandings of multicultural music practice at two South African universities and at an Australia university, I used…

  8. Knowing, Performing and Holding Queerness: LGBTIQ+ Student Experiences in Australian Tertiary Education (United States)

    Waling, Andrea; Roffee, James A.


    This paper explores LGBTIQ+ students' experiences of knowing, performing and holding queerness in a tertiary educational environment. Through interviews conducted with LGBTIQ+ students at a large Australian metropolitan university, we examine the students' engagement with other LGBTIQ+ students in the tertiary educational space. Although…

  9. On Progress of Mass Tertiary Education: Case of Lebanon, Kenya and Oman (United States)

    Liu, Zhimin; Mutinda, Gladys


    Mass higher education is a huge force to be reckoned with and its existence, already in the expansion of tertiary institutions is undeniable. This study will focus on three countries: Lebanon, Kenya and Oman. The purpose of this study is to evaluate mass tertiary education progress in these countries. It will synthesize data results of gross…

  10. Evaluation of a tertiary teledermatology service between peripheral and academic dermatologists in the Netherlands

    NARCIS (Netherlands)

    van der Heijden, Job P.; de Keizer, Nicolette F.; Witkamp, Leonard; Spuls, Phyllis I.


    Tertiary teledermatology (TTD)-secondary-care to tertiary-care teleconsultation-is applied rarely compared with the frequently applied secondary teledermatology (primary to secondary care). The objective of this study was to determine the effect of TTD on referrals from peripheral dermatologists to

  11. Benchmarking Australian and New Zealand University Meta-Policy in an Increasingly Regulated Tertiary Environment (United States)

    Freeman, Brigid


    The agencies responsible for tertiary education quality assurance in Australia and New Zealand have established regulatory regimes that increasingly intersect with tertiary institution policy management. An examination of university meta-policies identified good practices guiding university policy and policy management. Most Australian and half of…

  12. The Missing Link in Australian Tertiary Education: Short-Cycle Higher Education (United States)

    Moodie, Gavin


    The blurring of the boundary between Australian vocational education and training and higher education is leading to a reconsideration of the current structure of Australian tertiary education. This paper starts with the main overlap of the Australian tertiary education sectors, diplomas and advanced diplomas. The ambiguous treatment of these…

  13. Why Do Tertiary Education Graduates Regret Their Study Program? A Comparison between Spain and the Netherlands (United States)

    Kucel, Aleksander; Vilalta-Bufi, Montserrat


    In this paper we investigate the determinants of regret of study program for tertiary education graduates in Spain and the Netherlands. These two countries differ in their educational system in terms of the tracking structure in their secondary education and the strength of their education-labor market linkages in tertiary education. Therefore, by…

  14. Student Expectations of Tertiary Institutions: A Case Study of the Fiji National University (FNU) (United States)

    Khan, Shana Nigar


    Education is a human right and Fiji's tertiary education board recently declared that all tertiary institutions in Fiji must abide by the framework in order to meet student-customers' needs. The Fiji National University's (FNU's) destiny to be Fiji's leading higher education provider could be a reality if students and staff's expectations are…

  15. Assessment of Social Media Utilization and Study Habit of Students of Tertiary Institutions in Katsina State (United States)

    Olutola, Adekunle Thomas; Olatoye, Olufunke Omotoke; Olatoye, Rafiu Ademola


    This study investigated assessment of social media utilization and study habits of students of tertiary institutions in Katsina State. The descriptive survey design was adopted for this study. Three hundred and eighty-one (381) students' of tertiary institutions in Katsina State were randomly selected for the study. Researchers'-designed…

  16. A study on adverse drug reactions in a tertiary care hospital of ...

    African Journals Online (AJOL)

    Objective: Purpose of this study was to monitor adverse drug reactions reported from various departments of a tertiary care hospital in Northeast India. Reported adverse drug reactions were analysed for causality and severity assessment. Methods: This cross sectional study was conducted in a tertiary care hospital at ...

  17. A retrospective review of snake bite victims admitted in a tertiary ...

    African Journals Online (AJOL)

    Objective: Snake bite remains major public health problem worldwide. We present our experience with cases of snake bites managed in our tertiary care teaching center of South India. Materials and Methods:The details of all patients with snake bite admitted to a tertiary teaching care hospital from. 2010 to 2012 were ...

  18. A retrospective review of snake bite victims admitted in a tertiary ...

    African Journals Online (AJOL)

    Objective: Snake bite remains major public health problem worldwide. We present our experience with cases of snake bites managed in our tertiary care teaching center of South India. Materials and Methods: The details of all patients with snake bite admitted to a tertiary teaching care hospital from 2010 to 2012 were ...

  19. Tertiary period in Galicia. The significance and chronostratigraphic position of the lignite deposits

    Energy Technology Data Exchange (ETDEWEB)

    Martin Serrano, A. (Ibergesa, dep. geol., Madrid (Spain))


    The paper points out the most significant features of the Tertiary in Galicia; analyses the role played by climate and tectonics and also the significance and position of the lignite deposits in the suggested model; and establishes a diagram of the dynamic development of the Galician block during the Tertiary period.

  20. Entrepreneurship Education in Delta State Tertiary Institution as a Means of Achieving National Growth and Development (United States)

    Osakwe, Regina N.


    This study examined entrepreneurship education in Delta Sate tertiary institutions as a means of national growth and development. Two research questions were asked to guide the study. The population comprised all the 1,898 academic staff in eight tertiary institutions in the state. A sample of 800 lecturers was drawn through the multi stage and…

  1. The Petasis Reaction: Microscale Synthesis of a Tertiary Amine Antifungal Analog (United States)

    Koroluk, Katherine J.; Jackson, Derek A.; Dicks, Andrew P.


    Students prepare a tertiary amine antifungal analog in an upper-level undergraduate organic laboratory. A microscale Petasis reaction is performed to generate a liquid compound readily characterized via IR and proton NMR spectroscopy. The biological relevance of the product is highlighted, with the tertiary amine scaffold being an important…

  2. A TLC visualisation reagent for dimethylamphetamine and other abused tertiary amines. (United States)

    Kato, N; Ogamo, A


    Application of citric acid/acetic anhydride reagent (CAR), a colour reagent selective for tertiary amines in solution, improves detection of abused tertiary amino drugs on the TLC plate. The plate is pretreated by a brief immersion in phosphoric acid/acetone solution to suppress colouration. After suppressing, the plate is sprayed with CAR and heated at 100 degrees C, causing tertiary amines to turn red purple within 3 minutes. The sensitivity of this new CAR method is 2.5 to 15-times greater than that of conventional detection with Dragendorff reagent for some of the tertiary amines dimethylamphetamine, methylephedrine, levomepromazine, chlorpromazine, caffeine, theophylline, theobromine and nicotine. This present method provides rapid TLC detection of abused tertiary amino drugs such as phenethylamine, phenothiazine, xanthine derivative, nicotine and narcotics.

  3. Entrepreneurship Education at Tertiary Education Level: Implication to Historical Studies

    Directory of Open Access Journals (Sweden)

    Salahu Mohammed Lawal


    Full Text Available Nigeria is richly endowed with both human and material resources that when well utilized can make her one of the richest and developed nation in the world.  But poor utilization of the resources, corruption and dwindling fortune in her education system made her among the first twenty five poorest nations in the world.  Similarly, report shows that 26% of the employable population remained unemployed.  This called for the need for entrepreneurship education most especially at tertiary level where high level manpower is supposed to be trained.  It is on this premise that the paper attempts to examine entrepreneurship education and its implication to history students and graduates.

  4. Aliphatic and aromatic triterpenoid hydrocarbons in a Tertiary angiospermous lignite

    Energy Technology Data Exchange (ETDEWEB)

    Stout, S.A. (Unocal Science and Technology Division, Brea, CA (USA))


    The hydrocarbon biomarker assemblage of a liptinite-rich, early Tertiary angiospermous lignite has been characterized. The biomarker distribution for the lignite confirms the low maturity and previous paleobotanic interpretations. The aliphatic hydrocarbon fraction consists predominantly of n-alkanes showing a strong odd-carbon predominance, and numerous de-A-triterpenoids and triterpenoids derived from higher plants. Bacterially-derived triterpenoids were represented primarily by homohopanes and hopenes. The aromatic hydrocarbon fraction contains a series of mono-, di-, and triaromatic de-A-triterpenoids and mono-, tri- and tetraaromatic triterpenoids derived from higher plants. The concentration and abundance of monoaromatic triterpenoids containing one to three additional degrees of unsaturation have not been previously observed in a single deposit. As such, a diagenetic scheme for angiosperm-derived triterpenoids is presented which confirms and extends previous hypotheses. 45 refs., 10 figs., 2 tabs.

  5. Cooperative activity and its potential for learning in tertiary education

    Directory of Open Access Journals (Sweden)

    Cirila Peklaj


    Full Text Available A learning situation can be structured in different ways, as an individual, competitive, or cooperative activity. Each of these structures can be used for different purposes and can lead to different learning outcomes. This paper focuses on cooperative activity and its potential for learning in tertiary education. After defining cooperative activity (or, in a broader sense, learning in interaction and introducing the CAMS theoretical framework to analyse cooperative activity, the main discussion focuses on the theoretical reasons for the usefulness of group learning and on the research of effects of cooperative learning on cognitive (metacognitive, affective-motivational and social processes in university students. The key elements that should be established for successful cooperation are also discussed. At the end, a new direction in using cooperative activity in learning—computer supported collaborative learning (CSCL, which emerged with rapid technology development in the last two decades—is presented and discussed.

  6. Medical treatment of primary, secondary, and tertiary hyperparathyroidism

    DEFF Research Database (Denmark)

    Thomsen, Súsanna v.; Vestergaard, Peter


    Hyperparathyroidism is a condition with elevated parathyroid hormone (PTH). The increase may be due to a) primary hyperparathyroidism which is caused by adenoma of one or more parathyroid glands or hyperplasia of all four glands, b) secondary hyperparathyroidism, which may be caused by deficiency...... in vitamin D or uremia, and 3) tertiary hyperparathyroidism, which most often is the result of a long-standing, severe secondary hyperparathyroidism, which has turned autonomous once the cause of the secondary hyperparathyroidism has been removed. Many new treatment options have been introduced in recent...... years. Cinacalcet is calcium sensing receptor agonist, which by stimulating the receptor decreases PTH and calcium levels. It may be used in primary hyperparathyroidism, secondary hyperparathyroidism caused by uremia, which may not be controlled with calcium and activated vitamin D. It may also be used...

  7. Updated Simulation Studies of Damage Limit of LHC Tertiary Collimators

    CERN Document Server

    AUTHOR|(CDS)2085459; Bertarelli, Alessandro; Bruce, Roderik; Carra, Federico; Cerutti, Francesco; Gradassi, Paolo; Lechner, Anton; Redaelli, Stefano; Skordis, Eleftherios


    The tertiary collimators (TCTs) in the LHC, installed in front of the experiments, in standard operation intercept fractions of 10−3 halo particles. However, they risk to be hit by high-intensity primary beams in case of asynchronous beam dump. TCT damage thresholds were initially inferred from results of destructive tests on a TCT jaw, supported by numerical simulations, assuming simplified impact scenarios with one single bunch hitting the jaw with a given impact parameter. In this paper, more realistic failure conditions, including a train of bunches and taking into account the full collimation hierarchy, are used to derive updated damage limits. The results are used to update the margins in the collimation hierarchy and could thus potentially have an influence on the LHC performance.

  8. Tertiary alphabet for the observable protein structural universe. (United States)

    Mackenzie, Craig O; Zhou, Jianfu; Grigoryan, Gevorg


    Here, we systematically decompose the known protein structural universe into its basic elements, which we dub tertiary structural motifs (TERMs). A TERM is a compact backbone fragment that captures the secondary, tertiary, and quaternary environments around a given residue, comprising one or more disjoint segments (three on average). We seek the set of universal TERMs that capture all structure in the Protein Data Bank (PDB), finding remarkable degeneracy. Only ∼600 TERMs are sufficient to describe 50% of the PDB at sub-Angstrom resolution. However, more rare geometries also exist, and the overall structural coverage grows logarithmically with the number of TERMs. We go on to show that universal TERMs provide an effective mapping between sequence and structure. We demonstrate that TERM-based statistics alone are sufficient to recapitulate close-to-native sequences given either NMR or X-ray backbones. Furthermore, sequence variability predicted from TERM data agrees closely with evolutionary variation. Finally, locations of TERMs in protein chains can be predicted from sequence alone based on sequence signatures emergent from TERM instances in the PDB. For multisegment motifs, this method identifies spatially adjacent fragments that are not contiguous in sequence-a major bottleneck in structure prediction. Although all TERMs recur in diverse proteins, some appear specialized for certain functions, such as interface formation, metal coordination, or even water binding. Structural biology has benefited greatly from previously observed degeneracies in structure. The decomposition of the known structural universe into a finite set of compact TERMs offers exciting opportunities toward better understanding, design, and prediction of protein structure.

  9. Hospital mortality in cirrhotic patients at a tertiary care center. (United States)

    Zubieta-Rodríguez, R; Gómez-Correa, J; Rodríguez-Amaya, R; Ariza-Mejia, K A; Toloza-Cuta, N A

    Cirrhosis of the liver is known for its high risk of mortality associated with episodes of acute decompensation. There is an even greater risk in patients that present with acute-on-chronic liver failure. The identification of patients at higher risk for adverse outcomes can aid in making the clinical decisions that will improve the prognosis for these patients. To determine in-hospital mortality and evaluate the epidemiologic and clinical characteristics of patients with cirrhosis of the liver seen at a tertiary referral hospital. A descriptive, observational, cohort study was conducted on adult patients with cirrhosis of the liver, admitted to a tertiary care center in Bucaramanga, Colombia, within the time frame of March 1, 2015 and February 29, 2016. Eighty-one patients with a mean age of 62 years were included in the study. The main etiology of the cirrhosis was alcoholic (59.3%). In-hospital mortality was 23.5% and the most frequent cause of death was septic shock (68.4%), followed by hypovolemic shock (10.5%). A MELD score≥18, a leukocyte count>12,000/ul, and albumin levels below<2.5g/dl were independent factors related to hospital mortality. In-hospital mortality in cirrhotic patients is high. Sepsis and bleeding are the 2 events leading to acute-on-chronic liver failure and death. A high MELD score, elevated leukocyte count, and low level of albumin are related to poor outcome during hospitalization. Adjusted prevention-centered public health measures and early and opportune diagnosis of this disease are needed to prevent the development of complications and to improve outcome in cirrhotic patients. Copyright © 2017 Asociación Mexicana de Gastroenterología. Publicado por Masson Doyma México S.A. All rights reserved.

  10. PROSE for irregular corneas at a tertiary eye care center. (United States)

    Arumugam, Amudha Oli; Rajan, Rajni; Subramanian, Madhumathi; Mahadevan, Rajeswari


    The aim of this study was to report and discuss the clinical experience with PROSE (Prosthetic Replacement of Ocular Surface Ecosystem) practice at a tertiary eye care hospital. Retrospective data of patients who were prescribed PROSE during April 2011 to March 2012 in a tertiary eye care center in south India were analyzed. Data collected include patient demographics, indications of scleral lens fitting, previous correction modality, PROSE parameters, best-corrected visual acuity (BCVA) with spectacles, and BCVA with PROSE at initial assessment and few hours of wear. The BCVA before (with glasses) and after PROSE fitting was recorded in logMAR units. The age of the patients ranged between 13 and 68 years (male:female 60:25) with a mean age of 32.44±13.45 years. Mean BCVA improved by 0.3 logMAR units (3 lines) after fitting with PROSE. There was a statistically significant difference between pre- and post-PROSE BCVA (P=0.0001). Failure of rigid gas-permeable lens fitting or intolerance was the common indication for PROSE in corneas with irregular astigmatism (refractive conditions). The other reasons for which PROSE was prescribed were pain, photophobia, comfort, ghosting of images, and frequent loss of smaller lenses. Toric scleral haptic was indicated in 62 eyes. The diameter, vault, and haptic measurements of PROSE in ocular surface disorders were much less and flatter than that of refractive conditions. PROSE device is a very useful alternative for irregular corneas to improve visual acuity, to improve comfort, and for symptomatic relief.

  11. Survey of visual impairment in an Indian tertiary eye hospital

    Directory of Open Access Journals (Sweden)

    Herse Peter


    Full Text Available A retrospective survey of 4, 122 consecutive patient records was performed in a tertiary care eye hospital in Hyderabad, India. Data collected included age, gender, visual acuity after completion of treatment and diagnosis. 62.8% of the patients were male. After completion of treatment, 10.8% had low vision (best corrected visual acuity <6/18 to 3/60 in the better eye and 2.6% were blind (best correct visual acuity <3/60 in the better eye. Most cases of low vision were found in the 50 to 70 year age group (42.9%. The most common visual acuity range after treatment amongst patients with vision loss was <6/18 to 6/60 (71%. The 4 main causes of low vision were cataract (21.4% of low vision group, glaucoma (14.0%, diabetic retinopathy (13.0%, and retinitis pigmentosa (10.7%. The 4 main causes of blindness were glaucoma (16.3% of blind group, diabetic retinopathy (13.2%, corneal opacities (11.6% and retinitis pigmentosa (11.6%. It is suggested that patients with low vision at the conclusion of treatment be referred to a vision rehabilitation centre. Referral should be made in cases with a best corrected visual acuity <6/18 to 3/60 or with visual field loss to within 15° of fixation. Patients aged under 50 years of age are expected to achieve maximal rehabilitation success. Motivation and vocational requirements should be assessed in older or more complex cases before referral. The data of this study show that about 10% of patients seen at a tertiary care eye hospital in India could benefit from low vision rehabilitation.

  12. Gestational Trophoblastic Disease - Clinicopathological Study at Tertiary Care Hospital. (United States)

    Jagtap, Sunil Vitthalrao; Aher, Vidhya; Gadhiya, Suchi; Jagtap, Swati Sunil


    Gestational Trophoblastic Disease (GTD) is a term used for a group of pregnancy-related tumours. These consist of various tumours and tumour like lesions characterized by proliferation of trophoblastic tissue. Amongst GTD, hydatidiform moles are the most common form. These lesions sometimes may develop into invasive moles, or, in rare cases, into choriocarcinoma. To study the clinicopathologic characteristics and prevalence of different forms of gestational trophoblastic disease in a tertiary care hospital. The present study was descriptive, observational, analytical type done in Department of Pathology at tertiary care hospital from May 2012 to April 2016. All cases clinically suspected of GTD were included and confirmation was done by histopathological study on H&E stained slides. The cases of GTD were classified according to WHO classification. Detailed histomorphological features and beta human Chorionic Gonadotropin (hCG) levels were correlated. During study period, 18345 deliveries were reported; out of which 77 cases were diagnosed as GTD. Almost 97.40% cases were of hydatidiform moles, 1.30% cases of choriocarcinoma and 1.30% cases of Placental Site Trophoblastic Tumour (PSTT). Among the cases of hydatidiform mole 57.34% were complete mole and 41.33% cases were of partial mole. The common clinical presentation was per vaginal bleeding and amenorrhea. The blood group A was most commonly observed in patient (49.35%). In majority of cases beta hCG levels were between 50,000 to 100000 mIU/ml. The correlation between beta hCG level and GTD were done. Pregnant females clinically presenting with abnormal vaginal bleeding must be evaluated for GTD. Histopathological examination is helpful for confirmatory diagnosis. Follow up of such patients is essential for early detection of malignant trophoblastic tumours.

  13. Description, measurement and evaluation of tertiary-education food environments. (United States)

    Roy, R; Hebden, L; Kelly, B; De Gois, T; Ferrone, E M; Samrout, M; Vermont, S; Allman-Farinelli, M


    Obesity in young adults is an increasing health problem in Australia and many other countries. Evidence-based information is needed to guide interventions that reduce the obesity-promoting elements in tertiary-education environments. In a food environmental audit survey, 252 outlets were audited across seven institutions: three universities and four technical and further education institutions campuses. A scoring instrument called the food environment-quality index was developed and used to assess all food outlets on these campuses. Information was collated on the availability, accessibility and promotion of foods and beverages and a composite score (maximum score=148; higher score indicates healthier outlets) was calculated. Each outlet and the overall campus were ranked into tertiles based on their 'healthiness'. Differences in median scores for each outcome measure were compared between institutions and outlet types using one-way ANOVA with post hoc Scheffe's testing, χ 2 tests, Kruskal-Wallis H test and the Mann-Whitney U test. Binomial logistic regressions were used to compare the proportion of healthy v. unhealthy food categories across different types of outlets. Overall, the most frequently available items were sugar-sweetened beverages (20 % of all food/drink items) followed by chocolates (12 %), high-energy (>600 kJ/serve) foods (10 %), chips (10 %) and confectionery (10 %). Healthy food and beverages were observed to be less available, accessible and promoted than unhealthy options. The median score across all outlets was 72 (interquartile range=7). Tertiary-education food environments are dominated by high-energy, nutrient-poor foods and beverages. Interventions to decrease availability, accessibility and promotion of unhealthy foods are needed.

  14. Impact of tertiary Gleason pattern 5 on prostate cancer aggressiveness: Lessons from a contemporary single institution radical prostatectomy series

    Directory of Open Access Journals (Sweden)

    Zachary B. Koloff


    Conclusion: Our results emphasize the importance of TP5 and suggest that criteria for tertiary pattern reporting in prostate cancer should be standardized. Further studies are needed to evaluate the role of tertiary patterns in prognostic models.

  15. Predictability of critical transitions (United States)

    Zhang, Xiaozhu; Kuehn, Christian; Hallerberg, Sarah


    Critical transitions in multistable systems have been discussed as models for a variety of phenomena ranging from the extinctions of species to socioeconomic changes and climate transitions between ice ages and warm ages. From bifurcation theory we can expect certain critical transitions to be preceded by a decreased recovery from external perturbations. The consequences of this critical slowing down have been observed as an increase in variance and autocorrelation prior to the transition. However, especially in the presence of noise, it is not clear whether these changes in observation variables are statistically relevant such that they could be used as indicators for critical transitions. In this contribution we investigate the predictability of critical transitions in conceptual models. We study the quadratic integrate-and-fire model and the van der Pol model under the influence of external noise. We focus especially on the statistical analysis of the success of predictions and the overall predictability of the system. The performance of different indicator variables turns out to be dependent on the specific model under study and the conditions of accessing it. Furthermore, we study the influence of the magnitude of transitions on the predictive performance.

  16. Variational Transition State Theory

    Energy Technology Data Exchange (ETDEWEB)

    Truhlar, Donald G. [Univ. of Minnesota, Minneapolis, MN (United States)


    This is the final report on a project involving the development and applications of variational transition state theory. This project involved the development of variational transition state theory for gas-phase reactions, including optimized multidimensional tunneling contributions and the application of this theory to gas-phase reactions with a special emphasis on developing reaction rate theory in directions that are important for applications to combustion. The development of variational transition state theory with optimized multidimensional tunneling as a useful computational tool for combustion kinetics involved eight objectives.

  17. Martensitic phase transitions

    Energy Technology Data Exchange (ETDEWEB)

    Petry, W.; Neuhaus, J. [Techn. Universitaet Muenchen, Physik Department E13, Munich (Germany)


    Many elements transform from a high temperature bcc phase to a more dense packed temperature phase. The great majority of these transitions are of 1st order, displacive and reconstructive. The lattice potentials which govern these martensitic transitions can be probed by inelastic neutron scattering, thereby answering fundamental questions like : Will the transition be announced by dynamical or static fluctuations? What are the trajectories for the displacements needed for the transformation? Does the vibrational entropy stabilize the high temperature phase? Are the unusual transport properties in these materials related to their ability to transform? (author) 17 figs., 1 tab., 46 refs.

  18. Rural transit emergency planning guidance. (United States)


    Providing safe, reliable transportation has long been a priority at all levels of the transit industry including the Federal Transit Administration (FTA), California Department of Transportation (Caltrans) and individual transit providers. Over the l...

  19. Phase transitions modern applications

    CERN Document Server

    Gitterman, Moshe


    This book provides a comprehensive review of the theory of phase transitions and its modern applications, based on the five pillars of the modern theory of phase transitions i.e. the Ising model, mean field, scaling, renormalization group and universality. This expanded second edition includes, along with a description of vortices and high temperature superconductivity, a discussion of phase transitions in chemical reaction and moving systems. The book covers a close connection between phase transitions and small world phenomena as well as scale-free systems such as the stock market and the Internet. Readership: Scientists working in different fields of physics, chemistry, biology and economics as well as teaching material for undergraduate and graduate courses.

  20. Oligocyclopentadienyl transition metal complexes

    Energy Technology Data Exchange (ETDEWEB)

    de Azevedo, Cristina G.; Vollhardt, K. Peter C.


    Synthesis, characterization, and reactivity studies of oligocyclopentadienyl transition metal complexes, namely those of fulvalene, tercyclopentadienyl, quatercyclopentadienyl, and pentacyclopentadienyl(cyclopentadienyl) are the subject of this account. Thermal-, photo-, and redox chemistries of homo- and heteropolynuclear complexes are described.

  1. Pinocchio: Geppetto's transitional object

    National Research Council Canada - National Science Library

    Gabriele Zeloni


    .... From this perspective, the author puts forward the following hypothesis: Pinocchio is a puppet who comes to life and is therefore, from a child's perception, a transitional object according to Winnicott...

  2. Transit management certificate program. (United States)


    TTI worked closely with the Landscape Architecture and Urban Planning Department : (LAUP) of Texas A&M University (TAMU) to develop a transit management certificate : focus for the current Graduate Certificate in Transportation Planning (CTP) housed ...

  3. Citizens in sustainable transitions

    DEFF Research Database (Denmark)

    Hoffmann, Birgitte; Agger, Annika


    and thereby facilitating new actor configurations in urban social-technical systems. This perspective may contribute to the study of transition processes that so far have not studied citizens' roles in depth. Based on discussions of theories on transition and institutional capacity building, the article...... the intermediary actors facilitate citizens' participatory processes in sustainable urban transitions, and the paper explores the concept of institutional capacity building as a way to develop learning processes and new practises? The aim is to analyse approaches of creating platforms for involving citizens...... discusses the mobilisation of citizens through social learning processes and how the develop-ment of new platforms plays a part in societal transitions. Empirically, the article is based on case studies from Denmark of local environmental centres, green guides etc. that have per-formed innovative forms...

  4. Geomagnetic polarity transitions (United States)

    Merrill, Ronald T.; McFadden, Phillip L.


    The top of Earth's liquid outer core is nearly 2900 km beneath Earth's surface, so we will never be able to observe it directly. This hot, dense, molten iron-rich body is continuously in motion and is the source of Earth's magnetic field. One of the most dynamic manifestations at Earth's surface of this fluid body is, perhaps, a reversal of the geomagnetic field. Unfortunately, the most recent polarity transition occurred at about 780 ka, so we have never observed a transition directly. It seems that a polarity transition spans many human lifetimes, so no human will ever witness the phenomenon in its entirety. Thus we are left with the tantalizing prospect that paleomagnetic records of polarity transitions may betray some of the secrets of the deep Earth. Certainly, if there are systematics in the reversal process and they can be documented, then this will reveal substantial information about the nature of the lowermost mantle and of the outer core. Despite their slowness on a human timescale, polarity transitions occur almost instantaneously on a geological timescale. This rapidity, together with limitations in the paleomagnetic recording process, prohibits a comprehensive description of any reversal transition both now and into the foreseeable future, which limits the questions that may at this stage be sensibly asked. The natural model for the geomagnetic field is a set of spherical harmonic components, and we are not able to obtain a reliable model for even the first few harmonic terms during a transition. Nevertheless, it is possible, in principle, to make statements about the harmonic character of a geomagnetic polarity transition without having a rigorous spherical harmonic description of one. For example, harmonic descriptions of recent geomagnetic polarity transitions that are purely zonal can be ruled out (a zonal harmonic does not change along a line of latitude). Gleaning information about transitions has proven to be difficult, but it does seem

  5. Transitional Justice in Spain

    Directory of Open Access Journals (Sweden)

    Lucía Payero López


    Full Text Available The aim of this article is to evaluate Spanish transitional justice policy. The aspects of transitional justice put forward by L. Joinet –truth, justice and reparation– will frame this analysis. Firstly, the main deficiencies of this policy will be pointed out. Secondly, some measures to be adopted in Spain will be suggested. Their implementation would mean that international standards on the protection of human rights, as agreed within the specialized literature, would be met.

  6. The WFCAM Transit Survey

    Directory of Open Access Journals (Sweden)

    Hodgkin S.


    Full Text Available The WFCAM Transit Survey (WTS has been obtaining data on the United Kingdom Infrared Telescope since 2007. The WTS targets about 8,000 M dwarfs over several square degrees of sky, and aims to find low-mass eclipsing binaries and planets, down to the size of the Earth, transiting M dwarf stars with periods up to a few days.

  7. Clinico-radiological aspects of neurocysticercosis in pediatric population in a tertiary hospital. (United States)

    Shrestha, Bandana; Mainali, Prabha; Sayami, Sujan; Shrestha, Om Kumar


    Neurocysticercosisis common in developing countries including Nepal. Clinicalpresentations vary depending on the CT scan findings of head. Adequate information of neurocysticercosis in children from Western Nepal is lacking. This study was conducted with an objective of evaluating the most common clinical and radiological picture in children suffering from NCC at a tertiary care teaching hospital in Western Nepal. Hospital records of all pediatric inpatients, admitted from 16th June 2010 to 15th December 2012, consistent with the diagnosis of Neurocysticercosis were reviewed. Forty nine cases of neurocysticercosis were enrolled. Their age varied 2.6 years to 14 years with the mean age of 10.6 years and the peak age was at 12 years with slight male predominance, ratio being male:female 1.2:1. The commonest presentation was seizures (n=38; 77.5 %); partial seizures being most common. Most of the lesions were single (n=44; 89.8%), predominantly in the parietal region (n=20; 40.8%) and most were in transitional stage (61.22%) in Computed tomography (CT).However, number of lesions from CT scan of head showed no significance in association with seizure types (p=0.84). In addition, perilesional edema and scolex within the lesion were noted in 67.34% and 18.36% of the cases respectively. Any child presenting with acute onset of afebrile seizure should be screened for neurocysticercosis provided other common infective and metabolic causes are ruled out. CT scan is the valuable diagnostic tool to support our diagnosis.

  8. Electroweak phase transitions

    Energy Technology Data Exchange (ETDEWEB)

    Anderson, Gregory W. [Univ. of California, Berkeley, CA (United States)


    An analytic treatment of the one Higgs doublet, electroweak phase transition is given. The phase transition is first order, occurs by the nucleation of thin walled bubbles and completes at a temperature where the order parameter, <Φ>T is significantly smaller than it is when the origin becomes absolutely unstable. The rate of anomalous baryon number violation is an exponentially function of <Φ>T. In very minimal extensions of the standard model it is quite easy to increase <Φ>T so that anomalous baryon number violation is suppressed after completion of the phase transition. Hence baryogenesis at the electroweak phase transition is tenable in minimal of the standard model. In some cases additional phase transitions are possible. For a light Higgs boson, when the top quark mass is sufficiently large, the state where the Higgs field has a vacuum expectation value <Φ> = 246 GeV is not the true minimum of the Higgs potential. When this is the case, and when the top quark mass exceeds some critical value, thermal fluctuations in the early universe would have rendered the state <Φ> = 246 GeV unstable. The requirement that the state <Φ> = 246 GeV is sufficiently long lived constrains the masses of the Higgs boson and the top quark. Finally, we consider whether local phase transitions can be induced by heavy particles which act as seeds for deformations in the scalar field.

  9. Effects of Primary, Secondary and Tertiary Education on Conflict Intensity in Africa

    Directory of Open Access Journals (Sweden)

    Julius A. Agbor


    Full Text Available This study investigates the impact of different schooling dimensions (primary, secondary and tertiary on the intensity of intra-state conflicts in 25 African states during the period 1989–2008. It uses fixed-effects and Generalized Methods of Moments (GMM estimators in an annualized panel data framework. Parameter estimates suggest the following (1 primary schooling broadly mitigates conflicts in Africa. However, in environments with high natural resource rents, it could ignite conflicts; (2 there is evidence, although not overwhelming, that secondary schooling potentially drives conflicts in Africa. There is also evidence that urbanization potentially drives conflicts in Africa. However, although secondary schooling and urbanization potentially drives conflicts, in environments where secondary schooling (urbanization is high, urbanization (secondary schooling mitigates conflicts; (3 there is no evidence of a strong direct positive impact of tertiary education on conflicts and conditioning on tertiary schooling, income inequality potentially drives conflicts in African states. However, in contexts where income inequality (tertiary schooling is high, tertiary schooling (inequality mitigates conflict. Two important policy implications follow from this study. First, in contexts where income inequality is high (for instance, in South Africa, governments should strive to foster tertiary education in order to reduce conflict. Second, where urbanization rates are high, they should foster both secondary and tertiary education. This study contributes to existing knowledge by clearly demonstrating the utility of distinguishing between different educational dimensions and the contexts wherein they matter for conflict mitigation in Africa.

  10. Formation Mechanism of NDMA from Ranitidine, Trimethylamine, and Other Tertiary Amines during Chloramination: A Computational Study (United States)


    Chloramination of drinking waters has been associated with N-nitrosodimethylamine (NDMA) formation as a disinfection byproduct. NDMA is classified as a probable carcinogen and thus its formation during chloramination has recently become the focus of considerable research interest. In this study, the formation mechanisms of NDMA from ranitidine and trimethylamine (TMA), as models of tertiary amines, during chloramination were investigated by using density functional theory (DFT). A new four-step formation pathway of NDMA was proposed involving nucleophilic substitution by chloramine, oxidation, and dehydration followed by nitrosation. The results suggested that nitrosation reaction is the rate-limiting step and determines the NDMA yield for tertiary amines. When 45 other tertiary amines were examined, the proposed mechanism was found to be more applicable to aromatic tertiary amines, and there may be still some additional factors or pathways that need to be considered for aliphatic tertiary amines. The heterolytic ONN(Me)2–R+ bond dissociation energy to release NDMA and carbocation R+ was found to be a criterion for evaluating the reactivity of aromatic tertiary amines. A structure–activity study indicates that tertiary amines with benzyl, aromatic heterocyclic ring, and diene-substituted methenyl adjacent to the DMA moiety are potentially significant NDMA precursors. The findings of this study are helpful for understanding NDMA formation mechanism and predicting NDMA yield of a precursor. PMID:24968236

  11. West Hackberry Tertiary Project. Annual report, September 3, 1995--September 2, 1996

    Energy Technology Data Exchange (ETDEWEB)

    Gillham, T.; Cerveny, B.; Turek, E.


    The West Hackberry Tertiary Project is a field test of the concept that air injection can be combined with the Double Displacement Process to produce a tertiary recovery process that is both low cost and economic at current oil prices. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil by gravity drainage. In reservoirs with pronounced bed dip such as those found in West Hackberry and other Gulf Coast salt dome fields, reservoir performance has shown that gravity drainage recoveries average 80% to 90% of the original oil in place while waterdrive recoveries average 50% to 60% of the original oil in place. The target for tertiary oil recovery in the Double Displacement Process is the incremental oil between the 50% to 60% waterdrive recoveries and the 80% to 90% gravity drainage recoveries. In previous field tests, the Double Displacement Process has proven successful in generating tertiary oil recovery. The use of air injection in this process combines the benefits of air`s low cost and universal accessibility with the potential for accelerated oil recovery from the combustion process. If successful, this project will demonstrate that utilizing air injection in the Double Displacement Process will result in an economically viable tertiary process in reservoirs (such as Gulf Coast salt dome reservoirs) where any other tertiary process is presently uneconomic.

  12. Tertiary Technical Education and Youth Integration in Brazil, Colombia and Mexico

    Directory of Open Access Journals (Sweden)

    Claudia Jacinto


    Full Text Available Vocational training versus a traditional university education. This chapter seeks to answer the question of whether ‘tertiary technical education’ has contributed to increasing economic and social opportunity for young people in Latin America, using three case studies from Brazil, Colombia and Mexico. It examines the extent to which tertiary technical education has contributed towards democratising access to education through institutional diversification, expanded enrolment and, at least theoretically, improved access to quality employment. The analysis shows that tertiary technical education has contributed to widening of opportunities by offering an alternative form of education to new generations of young people. Tertiary technical education is more accessible, shorter in duration, has a vocational orientation, and tends to be cheaper than a university education. However, the case studies also reveal that while a tertiary technical education diploma is an asset for young people seeking employment, it nonetheless does not have the same perceived value as a traditional university education. Available data appear to indicate that graduates of tertiary technical education earn less on average than university graduates and face several challenges in the labour market. Furthermore, the studies reveal that despite the presence of highly regarded tertiary technical education institutions in all three countries, these carry less prestige and status than universities.

  13. Scaffolding academic literacy using the Reading to Learn intervention: An evaluative study of a tertiary education context in South Africa

    Directory of Open Access Journals (Sweden)

    Millin, Tracey Jane


    Full Text Available This article reports on the use of the Reading to Learn (RtL intervention at the University of KwaZulu-Natal (UKZN to accelerate the development of academic literacy skills of ill-prepared students transitioning from school to university. This paper makes an original contribution to the literature on academic literacy development in three ways: firstly, this study pre-dates another published paper on the topic; secondly, it was the first study of RtL in a tertiary education context in South Africa and, thirdly, it applies a novel statistical method for data analysis purposes. The RtL pedagogy draws on the theoretical assumptions of Vygotsky, Halliday and Bernstein, and assists in the development of literacy (reading and writing skills necessary to succeed at university. The context of education and poor literacy levels amongst primary, secondary and tertiary students in South Africa is briefly outlined, followed by a brief overview of RtL. The paper continues by adopting a small-scale quantitative approach to testing the efficacy of RtL. In addition to various descriptive statistics, the analysis of literacy scores, scores which were generated throughout an academic writing module at UKZN, is undertaken using a nonparametric testing procedure. A noteworthy finding of the study concerns the weakest cohort of students, in that, these students made the greatest improvements throughout the RtL intervention. Hence, RtL may be a useful mechanism to ‘democratise’ literacy classrooms by narrowing the abilities gap between students with weaker and stronger literacy skills in South Africa.

  14. Missed Injuries in Polytrauma Patients after Trauma Tertiary Survey in Trauma Intensive Care Unit. (United States)

    Tammelin, E; Handolin, L; Söderlund, T


    Injuries are often missed during the primary and secondary surveys in trauma patients. Studies have suggested that a formal tertiary survey protocol lowers the number of missed injuries. Our aim was to determine the number, severity, and consequences of injuries missed by a non-formalized trauma tertiary survey, but detected within 3 months from the date of injury in trauma patients admitted to a trauma intensive care unit. We conducted a cohort study of trauma patients admitted to a trauma intensive care unit between 1 January and 17 October 2013. We reviewed the electronic medical records of patients admitted to the trauma intensive care unit in order to register any missed injuries, their delay, and possible consequences. We classified injuries into four types: Type 0, injury detected prior to trauma tertiary survey; Type I, injury detected by trauma tertiary survey; Type II, injury missed by trauma tertiary survey but detected prior to discharge; and Type III, injury missed by trauma tertiary survey and detected after discharge. During the study period, we identified a total of 841 injuries in 115 patients. Of these injuries, 93% were Type 0 injuries, 3.9% were Type I injuries, 2.6% were Type II injuries, and 0,1% were Type III injuries. Although most of the missed injuries in trauma tertiary survey (Type II) were fractures (50%), only 2 of the 22 Type II injuries required surgical intervention. Type II injuries presumably did not cause extended length of stay in the intensive care unit or in hospital and/or morbidity. In conclusion, the missed injury rate in trauma patients admitted to trauma intensive care unit after trauma tertiary survey was very low in our system without formal trauma tertiary survey protocol. These missed injuries did not lead to prolonged hospital or trauma intensive care unit stay and did not contribute to mortality. Most of the missed injuries received non-surgical treatment. © The Finnish Surgical Society 2016.

  15. Aiming to be NEAT: safely improving and sustaining access to emergency care in a tertiary referral hospital. (United States)

    Sullivan, Clair M; Staib, Andrew; Flores, Judy; Aggarwal, Leena; Scanlon, Alan; Martin, Jennifer H; Scott, Ian A


    To implement and evaluate strategies for improving access to emergency department (ED) care in a tertiary hospital. A retrospective pre-post intervention study using routinely collected data involving all patients presenting acutely to the ED of a major tertiary hospital over a 2-year period. Main outcome measures were changes in: the percentage of patients exiting the ED (all patients, patients discharged directly from the ED, patients admitted to inpatient wards); mean patient transit times in the ED; inpatient mortality rates; rates of ED 'did not wait' and re-presentations within 48 h of ED discharge; and selected safety indicators. Qualitative data on staff perceptions of interventions were also gathered. Working groups focused on ED internal processes, ED-inpatient unit interface, hospital-wide discharge processes and performance monitoring and feedback. Twenty-five different reforms were enacted over a 9-month period from April to December 2012. Comparing the baseline period (January-March 2012) with the post-reform period (January-March 2013), the percentage of patients exiting the ED within 4 h rose for all patients presenting to the ED (from 32% to 62%), for patients discharged directly from the ED (from 41% to 75%) and for admitted patients (from 12% to 32%; PNEAT), which stipulate at least 70% of patients in the ED must exit the department within 4h, have spurred hospitals into implementing a wide range of reforms with varying levels of success in achieving such targets. WHAT DOES THIS PAPER ADD?: This study demonstrates how multiple reforms implemented in a poor performing tertiary hospital caused the proportion of patients exiting the ED within 4h to double within 9 months to reach levels comparable with best performing peer hospitals. This was associated with a 26% reduction in in-hospital mortality for admitted patients and no clinically significant adverse effects. It demonstrates the importance of robust governance structures, executive


    Directory of Open Access Journals (Sweden)

    Ather Akhtar


    Full Text Available BACKGROUND Anaemia causes a reduction in the oxygen carrying capacity of the blood resulting in tissue hypoxia. Cardiac output at rest is not usually increased in most chronic anaemia until haemoglobin levels fall below 7 g/dL, but abnormal rise in output with exercise may occur with levels as high as 10 g/dL. The increase in cardiac output has been observed to correlate well with the degree of anaemia. Other compensatory mechanisms to chronic anaemia available to the body include decreased circulation time and increased tissue oxygen uptake. The latter is facilitated by a shift to the right of the oxygen haemoglobin dissociation curve. Cardiomegaly may also be as a result of the increased workload on the heart from the increased viscosity of blood in anaemia patients. Anaemia in the elderly is an extremely common problem that is associated with increased mortality and poorer health-related quality of life, regardless of the underlying cause of the low haemoglobin. A study of anaemia in elderly patients found a wide variation in prevalence, ranging from 2.9% to 61% in men and 3.3% to 41% in women. Higher rates were found in hospitalised patients than in community dwellers. It is easy to overlook anaemia in the elderly, since such symptoms as fatigue, weakness, or shortness of breath may be attributed to the ageing process itself. Our objective is to show the prevalence of anaemia even in a tertiary health care centre. METHODS One hundred patients were identified who were admitted in the Department of Medicine, Deccan College of Medical Sciences. Among the 100 patients, 38 were male and 62 were female. The study was conducted from Jan 2014 To Jan 2015. Patients having haemoglobin less than 10 g% in the medical wards were enrolled in the study. RESULTS Among the 100 patients, 38 were male and 62 were female. The average haemoglobin was 6.4 g%, the lowest being 2.8 g%. Peripheral blood smear showed hypochromic picture in 58, macrocytic picture in

  17. The impact of pharmacist-led medication reconciliation during admission at tertiary care hospital. (United States)

    Abdulghani, Khulood H; Aseeri, Mohammed A; Mahmoud, Ahmed; Abulezz, Rayf


    Background Medication errors represent the most common type of error that compromises patient safety, with approximately 20% believed to result in harm. Over 40% of these errors are believed to result from inadequate medication reconciliation during admission, transfer, and discharge of patients and many of these errors could be prevented if adequate medication reconciliation processes were in place. In an effort to minimize adverse events caused during these care transitions, the Joint Commission has stated medication reconciliation as one of its National Patient Safety Goals and health care providers and organizations are encouraged to perform the process at various patient care transitions. Objective Identify the types of medication discrepancy that occurred during medication reconciliation performed by a pharmacist gathering the best possible medication history (BPMH). Estimate the potential for harm with each medication discrepancy using the severity rating methods developed by Cornish et al. (Arch Intern Med 165(4):424-429, 2005). Setting Tertiary care hospital in Jeddah, Saudi Arabia. Method Prospective 3-month study on 286 adult patients, admitted for at least 24 h and regularly taking at least four chronic prescription medications. Medication histories taken by physicians and by a pharmacist gathering the BPMH were compared. Identified discrepancies were reviewed by a panel of clinical pharmacists to assess the potential to cause patient harm with these errors. Main Outcome measure Number and types of medication discrepancies recorded by the pharmacist. Results Total number of medications recorded by physicians was 2548, versus 3085 by the pharmacist. 48.3% of patients had at least one unintended medication discrepancy by physicians. 537 medication discrepancies were reported (17.4% of number of medication discrepancies recorded by pharmacist). Types of medication discrepancies included, omissions (77% of discrepancies), commissions (13%), dosing errors

  18. Quaternion representation of RNA sequences and tertiary structures. (United States)

    Magarshak, Y


    A quaternion representation of nucleotides is proposed, with representation of RNA sequences by vectors whose elements are quaternions. Structure and transition matrices in quaternion representation are defined. Correspondence between diagrammatic technique in complex-number and quaternion representation of nucleotides is delineated.

  19. The tertiary origin of the allosteric activation of E. coli glucosamine-6-phosphate deaminase studied by sol-gel nanoencapsulation of its T conformer.

    Directory of Open Access Journals (Sweden)

    Sergio Zonszein

    Full Text Available The role of tertiary conformational changes associated to ligand binding was explored using the allosteric enzyme glucosamine-6-phosphate (GlcN6P deaminase from Escherichia coli (EcGNPDA as an experimental model. This is an enzyme of amino sugar catabolism that deaminates GlcN6P, giving fructose 6-phosphate and ammonia, and is allosterically activated by N-acetylglucosamine 6-phosphate (GlcNAc6P. We resorted to the nanoencapsulation of this enzyme in wet silica sol-gels for studying the role of intrasubunit local mobility in its allosteric activation under the suppression of quaternary transition. The gel-trapped enzyme lost its characteristic homotropic cooperativity while keeping its catalytic properties and the allosteric activation by GlcNAc6P. The nanoencapsulation keeps the enzyme in the T quaternary conformation, making possible the study of its allosteric activation under a condition that is not possible to attain in a soluble phase. The involved local transition was slowed down by nanoencapsulation, thus easing the fluorometric analysis of its relaxation kinetics, which revealed an induced-fit mechanism. The absence of cooperativity produced allosterically activated transitory states displaying velocity against substrate concentration curves with apparent negative cooperativity, due to the simultaneous presence of subunits with different substrate affinities. Reaction kinetics experiments performed at different tertiary conformational relaxation times also reveal the sequential nature of the allosteric activation. We assumed as a minimal model the existence of two tertiary states, t and r, of low and high affinity, respectively, for the substrate and the activator. By fitting the velocity-substrate curves as a linear combination of two hyperbolic functions with Kt and Kr as KM values, we obtained comparable values to those reported for the quaternary conformers in solution fitted to MWC model. These results are discussed in the

  20. High Energy Exoplanet Transits (United States)

    Llama, Joe; Shkolnik, Evgenya L.


    X-ray and ultraviolet transits of exoplanets allow us to probe the atmospheres of these worlds. High energy transits have been shown to be deeper but also more variable than in the optical. By simulating exoplanet transits using high-energy observations of the Sun, we can test the limits of our ability to accurately measure the properties of these planets in the presence of stellar activity. We use both disk-resolved images of the Solar disk spanning soft X-rays, the ultraviolet, and the optical and also disk-integrated Sun-as-a-star observations of the Lyα irradiance to simulate transits over a wide wavelength range. We find that for stars with activity levels similar to the Sun, the planet-to-star radius ratio can be overestimated by up to 50% if the planet occults an active region at high energies. We also compare our simulations to high energy transits of WASP-12b, HD 189733, 55 Cnc b, and GJ 436b.

  1. Examining hydrogen transitions.

    Energy Technology Data Exchange (ETDEWEB)

    Plotkin, S. E.; Energy Systems


    This report describes the results of an effort to identify key analytic issues associated with modeling a transition to hydrogen as a fuel for light duty vehicles, and using insights gained from this effort to suggest ways to improve ongoing modeling efforts. The study reported on here examined multiple hydrogen scenarios reported in the literature, identified modeling issues associated with those scenario analyses, and examined three DOE-sponsored hydrogen transition models in the context of those modeling issues. The three hydrogen transition models are HyTrans (contractor: Oak Ridge National Laboratory), MARKAL/DOE* (Brookhaven National Laboratory), and NEMS-H2 (OnLocation, Inc). The goals of these models are (1) to help DOE improve its R&D effort by identifying key technology and other roadblocks to a transition and testing its technical program goals to determine whether they are likely to lead to the market success of hydrogen technologies, (2) to evaluate alternative policies to promote a transition, and (3) to estimate the costs and benefits of alternative pathways to hydrogen development.

  2. New interpretation of development of San Luis basin, south-central Colorado, based on petrology of Tertiary strata

    Energy Technology Data Exchange (ETDEWEB)

    Brister, B.S. (New Mexico Institute of Mining and Technology, Socorro (USA))


    A problem exists in determining which parts of the San Luis basin were depositional sites during three Tertiary tectonic events: early Tertiary (Laramide) transpression/compression, mid-Tertiary volcanism, and late Tertiary (Rio Grande rift) extension. Earlier studies have been hampered by incomplete knowledge of regional characteristics of poorly exposed early Tertiary rocks and by reliance upon inconclusive pollen age determinations. For simple petrologic analysis of well cuttings from boreholes across the basin, the authors must reinterpret the timing and mode of basin development. Applying general petrologic characteristics in well log correlations, it is apparent that the western part (Monte Vista graben) of the San Luis basin was an active depositional basin during all three of the Tertiary tectonic events, whereas the eastern part (Baca graben) is primarily a result of the late Tertiary rift episode.

  3. Submarine pyroclastic deposits in Tertiary basins, NE Slovenia

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    Polona Kralj


    Full Text Available In Tertiary basins of NE Slovenia, Upper Oligocene volcanic activity occurred in a submarine environment that experienced contemporaneous clastic sedimentation. Pyroclastic deposits are essentially related to gas- and watersupported eruption-fed density currents. At Trobni Dol, the Lako Basin, an over 100 m thick deposit formed by a sigle sustained volcanic explosion that fed gas-supported pyroclastic flow. Diagnostic features are large matrixshard content, normal grading of pumice lapilli, collapsed pumice lapilli and the presence of charcoal. In the Smrekovec Volcanic Complex, several but only up to 5 m thick deposits related to eruption-fed gassupported pyroclastic flows occur. Deposits settled from water-supported eruption-fed density currents form fining- and thinning-upward sedimentary units which resemble the units of volcaniclastic turbidites. Pyroclastic deposits related to gas- and water-supported density currents occur in an up to 1000 m thick succession composed of coherent volcanics, autoclastic, pyroclastic, reworked volcaniclastic and mixed volcaniclastic-siliciclastic deposits that indicate a complex explosive and depositional history of the Smrekovec Volcanic Complex.

  4. Recognising and Managing Refractory Coeliac Disease: A Tertiary Centre Experience

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    Ikram Nasr


    Full Text Available Refractory coeliac disease (RCD is a rare complication of coeliac disease (CD and involves malabsorption and villous atrophy despite adherence to a strict gluten-free diet (GFD for at least 12 months in the absence of another cause. RCD is classified based on the T-cells in the intra-epithelial lymphocyte (IEL morphology into type 1 with normal IEL and type 2 with aberrant IEL (clonal by PCR (polymerase chain reaction for T cell receptors (TCR at the β/γ loci. RCD type 1 is managed with strict nutritional and pharmacological management. RCD type 2 can be complicated by ulcerative jejunitis or enteropathy associated lymphoma (EATL, the latter having a five-year mortality of 50%. Management options for RCD type 2 and response to treatment differs across centres and there have been debates over the best treatment option. Treatment options that have been used include azathioprine and steroids, methotrexate, cyclosporine, campath (an anti CD-52 monoclonal antibody, and cladribine or fluadribine with or without autologous stem cell transplantation. We present a tertiary centre’s experience in the treatment of RCD type 2 where treatment with prednisolone and azathioprine was used, and our results show good response with histological recovery in 56.6% of treated individuals.

  5. Staff happiness and work satisfaction in a tertiary psychiatric centre. (United States)

    Baruch, Y; Swartz, M; Sirkis, S; Mirecki, I; Barak, Y


    Mental health professionals are at a high risk of burnout. Positive psychology outcomes of staff in acute in-patient psychiatric wards are poorly researched and unclear. To quantify the satisfaction with life and work-life satisfaction of mental health staff at a large university-affiliated tertiary psychiatric centre. We utilized the Satisfaction with Life Scale (SWLS) and the Work-Life Satisfaction Questionnaire (WLSQ). Two hundred and nine out of 450 staff members (46%) participated; mean age 48.2 + 9.9 years; 63% were male. On average the participants had been practising their speciality for 21.1 + 9.8 years (range: 2-48). The mean total SWLS scores differed significantly between professions (P happiness were reported by psychologists and social workers, followed by the administrative staff, the psychiatrists and finally the nursing staff. Staff scored the highest for work as a 'calling' followed by work as a 'career' and the lowest rating for work as a 'job'. The mean total WLSQ score differed between professions, (P happiness may contribute to increase in moral and counter burnout.

  6. Factors Hindering the Integration of CALL in a Tertiary Institution

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    Izaham Shah Ismail


    Full Text Available The field of Computer Assisted Language Learning (CALL is a field that is constantly evolving as it is very much dependent on the advancement of computer technologies. With new technologies being invented almost every day, experts in the field are looking for ways to apply these new technologies in the language classroom. Despite that, teachers are said to be slow at adopting technology in their classrooms and language teachers, whether at schools or tertiary institutions, are no exception. This study attempts to investigate the factors that hinder ESL instructors at an institution of higher learning from integrating CALL in their lessons. Interviews were conducted with five ESL instructors and results revealed that factors which hinder them from integrating CALL in their teaching are universal factors such as knowledge in technology and pedagogy, computer facilities and resources, absence of exemplary integration of CALL, personal beliefs on language teaching, views on the role of a computers as teacher, and evaluation of learning outcomes.

  7. [Minimally Invasive Surgery in Pediatric Oncology. Tertiary center experience]. (United States)

    Gómez-Chacón Villalba, J; Rodríguez Caraballo, L; Marco Macián, A; Segarra Llido, V; Vila Carbó, J J


    To describe our experience using Minimally Invasive Surgery (MIS) techniques in tertiary center with specific oncological pediatric surgery unit. Retrospective review of patients undergoing MIS techniques in pediatric oncology surgery unit between January 2011 and December 2014. MIS procedures were considered made by both techniques such as laparoscopy and thoracoscopy with both diagnostic and therapeutic intent. 4 procedures were diagnostic and the rest were therapeutic: During the study, 56 procedures were performed by MIS. By type of technique, 13 were thoracoscopic (7 metastasectomies, 6 thoracic masses) and 43 laparoscopic (3 hepatic masses, 3 pancreatic masses 7 abdominal masses, 2 ovarian masses, 2 typhlitis 1 splenic mass and 25 oophorectomy for ovarian cryopreservation). In 5 cases (2 thoracic masses 1 pancreatic mass abdominal masses) conversion to open surgery to complete the procedure (2 for caution in the absence of vascular control bleeding 1 and 2 for lack of space) was necessary. In all cases safety principles of oncological surgery were respected. Providing an adecuate selection of patiens, MIS techniques are safe, reproducible and fulfill the objectives of quality of cancer surgery.

  8. Wildfires and animal extinctions at the Cretaceous/Tertiary boundary (United States)

    Adair, Robert K.


    Persuasive models of the ejection of material at high velocities from the Chicxulub asteroid impact marking the Cretaceous/Tertiary boundary have led to the conclusion that upon return, that material, heated in passage through the upper atmosphere, generated a high level of infrared energy density over the Earth's surface. That radiant energy has been considered to be a direct source of universal wildfires, which were presumed to be a major cause of plant and animal species extinctions. The extinction of many animal species, especially the dinosaurs, has also been attributed to the immediate lethal effects of the radiation. I find that the absorption of the radiation by the atmosphere, by cloud formations, and by ejecta drifting in the lower atmosphere reduced the radiation at the surface to a level that cannot be expected to have generated universal fires. Although the reduced radiation will have likely caused severe injuries to many animals, such insults alone seem unlikely to have generated the overall species extinctions that have been deduced.

  9. Job satisfaction among anesthesiologists at a tertiary hospital in Nigeria

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    Ambrose Rukewe


    Full Text Available Background : We assessed job satisfaction among anesthesiologists at a tertiary hospital in Nigeria and identified elements of job stress and dissatisfaction. Methods : A cross-sectional study design was employed; a structured self-administered questionnaire was distributed, which focused on sociodemographic data, rating of job satisfaction, identification of stressors, and work relationships. Results : Out of 55 questionnaires distributed, 46 (83.6% completed questionnaires were returned. Overall, 27 (58.7% of the anesthesiologists were satisfied with their job. While 8.7% were very satisfied (grade 5, 6.5% were very dissatisfied (grade 1 with their job. The stressors identified by the respondents were time pressures, long working hours with complaints of insufficient sleep, and employment status. Among the respondents, the medical officers were the most discontented (9 out of 12, 75%, followed by senior registrars (5 out of 9, 56%. A high percentage of participants (54.1% declared that the one change if implemented that would enhance their job satisfaction was having a definite closing time. Conclusion : Our results showed that despite the demanding nature of anesthesiology as a specialty, many anesthesiologists were contented with their job.

  10. Predictors of Patient Satisfaction with Tertiary Hospitals in Korea

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    Hye-Sook Ham


    Full Text Available This study examined the general and system-related predictors of outpatient satisfaction with tertiary health care institutions in Korea. A cross-sectional descriptive study design was employed. The subjects were 1,194 outpatients recruited from 29 outpatient clinics of a university medical center in Korea. Measurements included 5 outpatient service domains (i.e., doctor service, nurse service, technician service, convenience, and physical environment of facility and patient satisfaction. Of the five domains, nurse service was the domain with the highest mean score M=4.21 and convenience was the domain with the lowest mean score M=3.77. The most significant predictor of patient satisfaction was the constructs of convenience β=0.21. The results of this study suggest that the concept of patient satisfaction with health care institutions in modern hospitals reflects an integrative process that includes not only the concerned health care personnel but also improved convenience such as user-friendly reservation system and comfortable waiting areas.

  11. Needle stick injuries in a tertiary care hospital

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    Jayanth S


    Full Text Available Background: Accidental needle stick injuries (NSIs are an occupational hazard for healthcare workers (HCWs. A recent increase in NSIs in a tertiary care hospital lead to a 1-year review of the pattern of injuries, with a view to determine risk factors for injury and potential interventions for prevention. Methods: We reviewed 1-year (July 2006-June 2007 of ongoing surveillance of NSIs. Results: The 296 HCWs reporting NSIs were 84 (28.4% nurses, 27 (9.1% nursing interns, 45 (21.6% cleaning staff, 64 (21.6% doctors, 47 (15.9% medical interns and 24 (8.1% technicians. Among the staff who had NSIs, 147 (49.7% had a work experience of less than 1 year ( P < 0.001. The devices responsible for NSIs were mainly hollow bore needles ( n = 230, 77.7%. In 73 (24.6% of the NSIs, the patient source was unknown. Recapping of needles caused 25 (8.5% and other improper disposal of the sharps resulted in 55 (18.6% of the NSIs. Immediate post-exposure prophylaxis for HCWs who reported injuries was provided. Subsequent 6-month follow-up for human immunodeficiency virus showed zero seroconversion. Conclusion: Improved education, prevention and reporting strategies and emphasis on appropriate disposal are needed to increase occupational safety for HCWs.

  12. Mucormycosis at a tertiary care centre in Gujarat, India. (United States)

    Patel, Atul K; Patel, Ketan K; Patel, Kamlesh; Gohel, Swati; Chakrabarti, Arunaloke


    The prevalence of mucormycosis is reportedly high in India, although the studies are mainly from north and south India only. We analysed the mucormycosis cases at tertiary care centres of West India. We retrieved the clinical details of all the patients with probable and proven mucormycosis diagnosed at Sterling Hospital and ID clinic at Ahmedabad, Gujarat over the period from 1 January 2013 through 30 April 2015. The data were analysed to determine demography, risk factors, underlying diseases, site of infection and outcome of these patients. A total of 27 patients with the median age of 50 (16-65) years were diagnosed with mucormycosis during the period. Rhino-orbital-cerebral mucormycosis was the most common (51.9%) presentation. Majority (55.6%) of the patients had uncontrolled diabetes with or without ketoacidosis; 25.9% patients had no underlying disease and most of them (85.7%) had cutaneous mucormycosis. In this group, the mortality was 25.9% and an equal percentage of patients were lost to follow up; 14 (51.9%) patients could complete 6 weeks of amphotericin B therapy. All patients who completed antifungal therapy survived except one. Like other parts of India, uncontrolled diabetes was the predominant risk factor for mucormycosis in our group. Patients completing 6 weeks of amphotericin B treatment were likely to survive. © 2017 Blackwell Verlag GmbH.

  13. Perceived nursing service quality in a tertiary care hospital, Maldives. (United States)

    Nashrath, Mariyam; Akkadechanunt, Thitinut; Chontawan, Ratanawadee


    The present study explored nurses' and patients' expectations of nursing service quality, their perception of performance of nursing service quality performed by nurses, and compared nursing service quality, as perceived by nurses and patients. The sample consisted of 162 nurses and 383 patients from 11 inpatient wards/units in a tertiary care hospital in the Maldives. Data were collected using the Service Quality scale, and analyzed using descriptive statistics and the Mann-Whitney U-test. The results indicated that the highest expected dimension and perceived dimension for nursing service quality was Reliability. The Responsiveness dimension was the least expected dimension and the lowest performing dimension for nursing service quality as perceived by nurses and patients. There was a statistically significant difference between nursing service quality perceived by nurses and patients. The study results could be used by nurse administrators to develop strategies for improving nursing service quality so that nursing service delivery process can be formulated in such a way as to reduce differences of perception between nurses and patients regarding nursing service quality. © 2011 Blackwell Publishing Asia Pty Ltd.

  14. Terpenoid composition and class of Tertiary resins from India

    Energy Technology Data Exchange (ETDEWEB)

    Dutta, Suryendu; Mallick, Monalisa; Mathews, Runcie Paul [Department of Earth Sciences, Indian Institute of Technology Bombay, Powai, Mumbai-400076 (India); Bertram, Norbert [LTA-Labor fuer Toxikologie und Analytik, Friedrichshoeher Str. 28, D-53639 Koenigswinter (Germany); Greenwood, Paul F. [John De Laeter Mass Spectrometry and WA Biogeochemitry Centres (M090), The University of Western Australia, 35 Stirling Hwy, Crawley, WA, 6009 (Australia); WA - Organic and Isotope Geochemistry Centre, Curtin University of Technology, Kent St., Bentley 6102 (Australia)


    The terpenoid composition and class of Tertiary resins preserved within lignites of Cambay, Kutch and Cauvery Basins of India have been characterized using Pyrolysis-Gas Chromatography-Mass Spectrometry (Py-GC-MS) and Fourier Transform Infrared (FTIR) Spectroscopy. Major pyrolysis products include cadalene-based C{sub 15}-bicyclic sesquiterpenoids with some C{sub 30} and C{sub 31} bicadinanes and bicadinenes typical of Class II or dammar resin. The occurrence of these terpenoids in Early Eocene sediments may extend the first appearance of Dipterocarpaceae angiosperms, the predominant source of this resin class, back to the Early Eocene epoch in India. The same terpenoid biomarkers have been detected in many SE Asian oils reflecting a close source relationship with these resins. Strong CH{sub 3} (1377 cm{sup -} {sup 1}) and other CH{sub x} (3000-2800 and 1460-1450 cm{sup -} {sup 1}) aliphatic absorptions of much larger intensity than the aromatic C = C (1560-1650 cm{sup -} {sup 1}) absorption were detected in the Indian resins by FTIR Spectroscopy, confirming the quantitative significance of the terpenoid pyrolysates. (author)

  15. Septic arthritis in adults in a tertiary care center. (United States)

    Ornelas-Aguirre, José Manuel


    To describe the history, clinical features and microorganisms involved in a group of adult subjects with and without septic arthritis (SA) at a tertiary care in Mexico. A cross-sectional descriptive study was conducted on 96 adults with clinical suspicion of AS in one or more joints. In all cases synovial fluid arthrocentesis and culture was performed. The comparison group subjects were culture negative. A descriptive statistical analysis and binary logistic regression model was performed between the variables associated with the development of AS. A value of P≤.05 was significant. A total of 49 out of 96 subjects had a positive culture, mostly of the monoarticular type (96%; P=.02). The knee was the most common site (61%; P=.06) and pain was the main clinical manifestation (59%; P=.001). Staphylococcus was the most common etiological agent (65%; P<.001). The risk factors revealed in the final regression model were SA the history of joint disease (OR=25; P=.03) and volume increase (OR=13.16; P=.06). Functional limitation (OR=8.54; P=.04) showed a significant risk among borderline for SA. Our results are consistent with previous studies, and can be generalized to geographical areas with similar clinical features to those observed in this study. Copyright © 2014 Elsevier España, S.L.U. and Sociedad Española de Reumatología y Colegio Mexicano de Reumatología. All rights reserved.

  16. Mastalgia: Prevalence at a Sub-Saharan African Tertiary Hospital

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    T. Makumbi


    Full Text Available Introduction. Mastalgia is a common breast condition among women referred to breast clinics worldwide. Whereas the prevalence is known in the Western world and Asia, the prevalence of the disease is unknown in many African countries. The aim of this study therefore was to determine the prevalence and describe factors associated with mastalgia among women attending a tertiary hospital in sub-Saharan Africa. Methods. A cross-sectional study was done in Kampala, Uganda. Mastalgia was defined as self-reported breast pain (unilateral or bilateral for a period not less than two months. A pretested questionnaire was used to collect the data and statistical analysis was performed using SPSS version 11. Ethical approval was obtained. Results. Out of the 1048 women who presented to the breast clinic during the study period, 168 (16% were diagnosed with mastalgia in the absence of breast cancer. Noncyclical and cyclical mastalgia were 22/168 (13% and 5/168 (3%, respectively. The onset of noncyclical category as compared to the cyclical type of mastalgia was observed to manifest before 24 years of age (P=0.006. Conclusion. Mastalgia was a common condition among women in this sub-Saharan African setting as is elsewhere. The early onset mastalgia in this sub-Saharan African study requires further exploration for determination of its risk factors.

  17. Epidemiologic study of ankle fractures in a tertiary hospital. (United States)

    Sakaki, Marcos Hideyo; Matsumura, Bruno Akio Rodrigues; Dotta, Thiago De Angelis Guerra; Pontin, Pedro Augusto; Dos Santos, Alexandre Leme Godoy; Fernandes, Tulio Diniz


    To evaluate the epidemiology of ankle fractures surgically treated at the Instituto de Ortopedia e Traumatologia do Hospital das Clínicas da Universidade de São Paulo. Medical records of patients admitted with foot and ankle fractures between 2006 and 2011 were revised. Seventy three ankle fractures that underwent surgical treatment were identified. The parameters analyzed included age, gender, injured side, AO and Gustilo & Anderson classification, associated injuries, exposure, need to urgent treatment, time to definitive treatment and early post-operative complications. retrospective epidemiological study. Male gender was predominant among subjects and the mean age was 27.5 years old. Thirty nine fractures resulted from traffic accidents and type B fracture according to AO classification was the most common. Twenty one were open fractures and 22 patients had associated injuries. The average time to definitive treatment was 6.5 days. Early post-operative complications were found in 21.3% of patients. Ankle fractures treated in a tertiary hospital of a large city in Brazil affect young people victims of high-energy accidents and present significant rates of associated injuries and post-operative complications. Level of Evidence IV, Cases Series.

  18. Ocular trauma: A tertiary hospital experience from Oman. (United States)

    Al-Mahrouqi, Haitham H; Al-Harthi, Naila; Al-Wahaibi, Maryam; Hanumantharayappa, Kishore


    To describe the epidemiology of ocular trauma in a tertiary hospital setting in Muscat, Oman. Medical records of all cases of ocular trauma which presented to the Emergency Department at Al-Nahdha Hospital and were seen by the ophthalmology service from January 1, 2013 to June 30, 2013 (6 months) were reviewed to collect data on ocular trauma according to the World Eye Injury Registry initial reporting form which uses the Birmingham Eye Trauma Terminology System. There were 27,951 patients seen at the Emergency Department and 611 of which were ocular trauma cases (cumulative incidence 2.2% [confidence interval 2.0-2.4]). The mean age of the patients was 23 years and males comprised the majority of the cases (72%). Thirty-two patients had bilateral injury giving a total of 643 eyes injured. More than half of all injuries were caused by either blunt or large sharp objects. The cornea was the most frequently injured tissue (49%), but most injuries were minor in nature. More than three quarters (77%) of all eyes had a visual acuity of 0.3 (LogMAR) or better on presentation. There were 35 eyes (6%) with open globe injuries (OGI) and three-quarters of them occurring in the manual laborers. Ocular trauma is a common presentation at Al-Nahdha Hospital. Although the majority of trauma cases were minor without any visual disability sequelae, OGI could have been prevented with better ocular protection in the workplace.

  19. Experience of intravitreal injections in a tertiary Hospital in Oman. (United States)

    Al-Hinai, Ahmed S


    To find out statistical data regarding intravitreal injections in an outpatient department setup at a tertiary center in Oman. Retrospective chart review. Data collection of patients who underwent intravitreal injections from November 2009 to May 2013 at Sultan Qaboos University Hospital. Throughout a period of 42 months, a total of 711 intravitreal injections were performed. That included 214 patients (275 eyes). Around one-third of the eyes received two injections or more. The injected agents were bevacizumab (59.8%), ranibizumab (32.3%), triamcinolone (7.5%), and very few patients with endophthalmitis received intravitreal antibiotics and antifungal agents. The three most common indications for the injection therapy were diabetic macular edema (50.9%), choroidal neovascularization (24.3%), and retinal vein occlusive diseases (11.5%). Serious adverse events were rare, and they occurred as ocular (0.9% per patient) and systemic (3.3% per patient). There were 42 eyes received intravitreal triamcinolone, and 24% of them developed intraocular hypertension that required only medical treatment. Different intravitreal agents are currently used to treat many ocular diseases. Currently, therapy with intravitreal agents is very popular, and it carries a promising outcome with more efficiency and safety.

  20. Students’ Perceptions on a Good Tertiary Foreign Language Teacher

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    Siti Tarwiyah


    Full Text Available This paper investigates students’ perception of tertiary teachers’ attitude, method of teaching and classroom management in the teaching and learning of (professional, pedagogic, social and personality competence English and Arabic Language at IAIN Walisongo Semarang. This study is designed quantitavely and qualitatively using closed and open-ended questionnaire for collecting data. The subject of this research is the second semester students of the two faculties at IAIN Walisongo who, in that semester, take Arabic or English language course. The subject is chosen because based on 2012 course distribution, English and Arabic are distributed in the first and the second semester. The findings revealed that it is clearly seen that KPI (Islamic Communication & Broadcasting department students have better perception to their English language teachers. Meanwhile, students who have better perception to their Arabic Language Teachers are those from Islamic Counseling Departments (BPI of Dakwah faculty. Data of Tarbiyah Faculty shows Arabic language teachers are dominating. Arabic language teachers win 0.5 over English language teachers in almost all characteristics. This implies that expected performance of students in English Language is based on the teachers’ attitude, method of teaching the subject and classroom management. Based on the above-findings, recommendations were made.

  1. Tertiary Lymphoid Organs in Central Nervous System Autoimmunity

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    Meike Mitsdoerffer


    Full Text Available Multiple sclerosis (MS is an autoimmune disease characterized by chronic inflammation in the central nervous system (CNS, which results in permanent neuronal damage and substantial disability in patients. Autoreactive T cells are important drivers of the disease, however, the efficacy of B cell depleting therapies uncovered an essential role for B cells in disease pathogenesis. They can contribute to inflammatory processes via presentation of autoantigen, secretion of pro-inflammatory cytokines and production of pathogenic antibodies. Recently, B cell aggregates reminiscent of tertiary lymphoid organs (TLOs were discovered in the meninges of MS patients, leading to the hypothesis that differentiation and maturation of autopathogenic B and T cells may partly occur inside the CNS. Since these structures were associated with a more severe disease course, it is extremely important to gain insight into the mechanism of induction, their precise function and clinical significance. Mechanistic studies in patiens are limited. However, a few studies in the MS animal model experimental autoimmune encephalomyelitis (EAE recapitulate TLO formation in the CNS and provide new insight into CNS TLO features, formation and function. This review summarizes what we know so far about CNS TLOs in MS and what we have learned about them from EAE models. It also highlights the areas that are in need of further experimental work, as we are just beginning to understand and evaluate the phenomenon of CNS TLOs.


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    Subhra Ghosh


    Full Text Available BACKGROUND Birth defects are responsible for increased perinatal mortality and long-term morbidities. To reduce its incidence, which is the need of the hour we should know more about them and possible risk factors, which can be prevented. The aim of the study is to study the overall frequency of birth defects in a tertiary hospital and search for association with certain risk factors. MATERIALS AND METHODS All newborns/stillborns with birth defects during one year were enrolled for the study. Similar number of newborns without birth defect during this period was taken as control. Relevant information was documented in both the groups and analysed. RESULTS Out of 11,008 births, congenital anomaly was found in 130 cases. The prevalence of birth defects was 1.18 percent. Association of occurrence of birth defects with increased paternal age, consanguinity, fever and drug intake in first trimester was found. 57.6% of the newborns with birth defects were stillborn, born at an earlier gestational age (33.6 week v/s. 37.5 weeks. Commonest system to be affected was CNS (49.2%. CONCLUSION Screening for aneuploidy and birth defects should be universal. Routine folic acid supplementation and pregnancy termination of malformed babies will reduce the incidences.

  3. After-hour physiotherapy services in a tertiary general hospital. (United States)

    Lim, Edwin C W; Liu, Jinyu; Yeung, Meredith T L; Wong, Wai Pong


    The aims of the present study were to describe the after-hour physiotherapy services in a tertiary general hospital, the patients and their demographics, and to determine which independent variables would predict physiotherapists' referrals to after-hour physiotherapy. A retrospective record review from April 1, 2004, to April 30, 2005, identified 992 patients (mean age 63.8 years; 95% confidence interval [CI] 62.6-65.0 years) who were either referred by daytime physiotherapists (68%) or referred by medical practitioners for urgent attendance after hours (32%). Pneumonia was formally diagnosed medically in 20% (n=197) of the patients. Of all the patients who had surgery, upper abdominal or thoracic incisions formed the majority (61%; n=236). Whether patients had upper abdominal/thoracic surgery (estimated odds ratio 3.4; 95% CI 2.3-4.9) and the presence of pneumonia (2.8; 95% CI 1.9-4.2) were two independent factors identified from a logistic regression model predicting daytime physiotherapists' referral of patients to after-hour service. This model correctly predicted 65.5% of the cases. Most patients were seen for mucociliary clearance. Referral behaviour by physiotherapists reflects the basis of their clinical decision making and has implications for practice, training, and further research.

  4. Reduction of secondary and tertiary phosphine oxides to phosphines. (United States)

    Hérault, Damien; Nguyen, Duc Hanh; Nuel, Didier; Buono, Gérard


    Achiral or chiral phosphines are widely used in two main domains: ligands in organometallic catalysis and organocatalysis. For this reason, the obtention of optically pure phosphine has always been challenging in the development of asymmetric catalysis. The simplest method to obtain phosphines is the reduction of phosphine oxides. The essential difficulty is the strength of the P=O bond which involves new procedures to maintain a high chemio- and stereoselectivity. The reduction can occur with retention or inversion of the stereogenic phosphorus atom depending on the nature of the reducing agent and the presence of additives. In fact, the reactivity of the phosphine oxides and the mechanism of the reduction are not always well understood. Since the first work in the 1950's, numerous studies have been realised in order to develop methodologies with different reagents or to understand the mechanism of the reaction. In the last decade, efficient stereospecific methodologies have been developed to obtain optically pure tertiary phosphines from P-stereogenic phosphine oxides. In this review, we intend to provide a comprehensive and critical overview of these methodologies.

  5. Evidence from lava flows for complex polarity transitions: The new composite Steens Mountain reversal record (United States)

    Jarboe, Nicholas A.; Coe, Robert S.; Glen, Jonathan M. G.


    Geomagnetic polarity transitions may be significantly more complex than are currently depicted in many sedimentary and lava-flow records. By splicing together paleomagnetic results from earlier studies at Steens Mountain with those from three newly studied sections of Oregon Plateau flood basalts at Catlow Peak and Poker Jim Ridge 70–90 km to the southeast and west, respectively, we provide support for this interpretation with the most detailed account of a magnetic field reversal yet observed in volcanic rocks. Forty-five new distinguishable transitional (T) directions together with 30 earlier ones reveal a much more complex and detailed record of the 16.7 Ma reversed (R)-to-normal (N) polarity transition that marks the end of Chron C5Cr. Compared to the earlier R-T-N-T-N reversal record, the new record can be described as R-T-N-T-N-T-R-T-N. The composite record confirms earlier features, adds new west and up directions and an entire large N-T-R-T segment to the path, and fills in directions on the path between earlier directional jumps. Persistent virtual geomagnetic pole (VGP) clusters and separate VGPs have a preference for previously described longitudinal bands from transition study compilations, which suggests the presence of features at the core–mantle boundary that influence the flow of core fluid and distribution of magnetic flux. Overall the record is consistent with the generalization that VGP paths vary greatly from reversal to reversal and depend on the location of the observer. Rates of secular variation confirm that the flows comprising these sections were erupted rapidly, with maximum rates estimated to be 85–120 m ka−1 at Catlow and 130–195 m ka−1 at Poker Jim South. Paleomagnetic poles from other studies are combined with 32 non-transitional poles found here to give a clockwise rotation of the Oregon Plateau of 11.4°± 5.6° with respect to the younger Columbia River Basalt Group flows to the north and 14.5°± 4.6° with respect

  6. Transition to the Cloud

    DEFF Research Database (Denmark)

    Hedman, Jonas; Xiao, Xiao


    The rising of cloud computing has dramatically changed the way software companies provide and distribute their IT product and related services over the last decades. Today, most software is bought offthe-shelf and distributed over the Internet. This transition is greatly influencing how software...... companies operate. In this paper, we present a case study of an ERP vendor for SMB (small and mediumsize business) in making a transition towards a cloud-based business model. Through the theoretical lens of ecosystem, we are able to analyze the evolution of the vendor and its business network as a whole......, and find that the relationship between vendor and Value-added-Reseller (VAR) is greatly affected. We conclude by presenting critical issues and challenges for managing such cloud transition....

  7. Phase transition in nanomagnetite (United States)

    Dézsi, I.; Fetzer, Cs.; Gombkötő, Á.; Szűcs, I.; Gubicza, J.; Ungár, T.


    Recently, the application of nanosized magnetite particles became an area of growing interest for their potential practical applications. Nanosized magnetite samples of 36 and 9nm sizes were synthesized. Special care was taken on the right stoichiometry of the magnetite particles. Mössbauer spectroscopy measurements were made in 4.2-300K temperature range. The temperature dependence of the intensities of the spectral components indicated size dependent transition taking place in a broad temperature range. For nanosized samples, the hyperfine interaction values and their relative intensities changed above the Verwey transition temperature value of bulk megnetite. The continuous transition indicated the formation of dendritelike granular assemblies formed during the preparation of the samples.

  8. Transition feeding of sows

    DEFF Research Database (Denmark)

    Theil, Peter Kappel


    The transition period from late gestation to early lactation is rather short, but it is nonetheless of major importance for the productivity of high-prolific sows. The transition period, here defined as the last 10 d of gestation and the first 10 d of lactation, encompasses substantial changes...... for the sow. More specifically, fetal growth, mammary growth, colostrum production and sow maintenance require substantial amounts of nutrients during late gestation. After parturition, nutrients are mainly required for milk synthesis and sow maintenance, but the regressing uterus supplies considerable...... amounts of amino acids to the blood. The physiology of the sow ensures that nutrient transfer to the offspring is not being compromised and that nutrients are preferentially being allocated to uterine tissues before parturition and to the udder after parturition. During the transition period, the sow...

  9. Transitions of Creatives?

    DEFF Research Database (Denmark)

    Fjællegaard, Cecilie Bryld

    The degree of transferability of skills and knowledge from an creative occupation in the creative industries to the wider economy is a great point of discussion within research in the arts and cultural and creative industries. By applying human capital theory on the labor market for creatives......, this paper investigates the relationship between creative occupation and industry human capital and hourly wage after transitioning to a non-creative occupation and/ or industry. Further, it is investigated how the distance of the transition mediates the relationship between creative occupation and industry...... specific human capital and hourly wage. By making use of a matched employer-employee dataset from the Denmark from 1994 to 2007, wage equation are estimated. The results suggest that a transition from a creative occupation to a non-creative occupation results in an increase in the hourly wage...

  10. Electroweak phase transitions

    Energy Technology Data Exchange (ETDEWEB)

    Anderson, G.W.


    An analytic treatment of the one Higgs doublet, electroweak phase transition is given. The phase transition is first order, occurs by the nucleation of thin walled bubbles and completes at a temperature where the order parameter, {l angle}{phi}{r angle}{sub T} is significantly smaller than it is when the origin becomes absolutely unstable. The rate of anomalous baryon number violation is an exponentially function of {l angle}{phi}{r angle}{sub T}. In very minimal extensions of the standard model it is quite easy to increase {l angle}{phi}{r angle}{sub T} so that anomalous baryon number violation is suppressed after completion of the phase transition. Hence baryogenesis at the electroweak phase transition is tenable in minimal of the standard model. In some cases additional phase transitions are possible. For a light Higgs boson, when the top quark mass is sufficiently large, the state where the Higgs field has a vacuum expectation value {l angle}{phi}{r angle} = 246 GeV is not the true minimum of the Higgs potential. When this is the case, and when the top quark mass exceeds some critical value, thermal fluctuations in the early universe would have rendered the state {l angle}{phi}{r angle} = 246 GeV unstable. The requirement that the state {l angle}{phi}{r angle} = 246 GeV is sufficiently long lived constrains the masses of the Higgs boson and the top quark. Finally, we consider whether local phase transitions can be induced by heavy particles which act as seeds for deformations in the scalar field.

  11. Tertiary instability of zonal flows within the Wigner-Moyal formulation of drift turbulence (United States)

    Zhu, Hongxuan; Ruiz, D. E.; Dodin, I. Y.


    The stability of zonal flows (ZFs) is analyzed within the generalized-Hasegawa-Mima model. The necessary and sufficient condition for a ZF instability, which is also known as the tertiary instability, is identified. The qualitative physics behind the tertiary instability is explained using the recently developed Wigner-Moyal formulation and the corresponding wave kinetic equation (WKE) in the geometrical-optics (GO) limit. By analyzing the drifton phase space trajectories, we find that the corrections proposed in Ref. to the WKE are critical for capturing the spatial scales characteristic for the tertiary instability. That said, we also find that this instability itself cannot be adequately described within a GO formulation in principle. Using the Wigner-Moyal equations, which capture diffraction, we analytically derive the tertiary-instability growth rate and compare it with numerical simulations. The research was sponsored by the U.S. Department of Energy.

  12. Provision of an emergency theatre in tertiary hospitals is cost-effective

    African Journals Online (AJOL)

    Provision of an emergency theatre in tertiary hospitals is cost-effective: Audit and cost of cancelled planned elective general surgical operations at Pietersburg Hospital, Limpopo Province, South Africa.

  13. Tensions in Learner Support and Tutor Support in Tertiary Web-based English Education in China

    National Research Council Canada - National Science Library

    Tong Wang


      Based on the findings of a national survey conducted in 2004 designed to examine the support systems for both learners and tutors engaged in tertiary-level Web-based English education in mainland...

  14. Self-Concept as a Correlate of Career Choice of Students in Tertiary ...

    African Journals Online (AJOL)

    concept and career choice of students in Post-Secondary Institutions in Sokoto State. The sample consisted of 300 students (140 males and 160 females) deliberately selected from the population of three tertiary institutions in Sokoto State.

  15. Analysis of HIV-related mortality data in a tertiary South African ...

    African Journals Online (AJOL)

    Analysis of HIV-related mortality data in a tertiary South African neurology unit, 2006 ... At the Steve Biko Academic Hospital, Pretoria, the Neurology Department has seen a steady increase in HIV-related neurology patients. ... Article Metrics.

  16. A review of stroke admissions at a tertiary hospital in rural ...

    African Journals Online (AJOL)

    A review of stroke admissions at a tertiary hospital in rural Southwestern ... Background: Stroke is a common neurological disorder and is the third leading cause of ... Hypertension (85.2%), diabetes mellitus (23.8%), and tobacco smoking ...

  17. Electronic phase transitions

    CERN Document Server

    Kopaev, YuV


    Electronic Phase Transitions deals with topics, which are presently at the forefront of scientific research in modern solid-state theory. Anderson localization, which has fundamental implications in many areas of solid-state physics as well as spin glasses, with its influence on quite different research activities such as neural networks, are two examples that are reviewed in this book. The ab initio statistical mechanics of structural phase transitions is another prime example, where the interplay and connection of two unrelated disciplines of solid-state theory - first principle ele

  18. Pinocchio: Geppetto's transitional object

    Directory of Open Access Journals (Sweden)

    Gabriele Zeloni


    Full Text Available The literature has been considered by Freud and others after him, a form of unaware exploration of mind that can leads to discoveries similar to psychoanalysis’s discoveries. From this perspective, the author puts forward the following hypothesis: Pinocchio is a puppet who comes to life and is therefore, from a child's perception, a transitional object according to Winnicott. Consequently Geppetto is nothing more than the involuntary representation of any child interacting with the transitional object. The author explains the results of the analysis of the text in support of the hypothesis and reflects on the impact of The adventure of Pinocchio on the reader.



    KWAPONG, Olivia Adwoa Tiwaah Frimpong


    Distance education (DE) is seen as a tool for widening access to education at all levels. It is an educational tool that breaks most of the divides in education – age, gender, race, income, space, time etc. For the past decades, irrespective of the extensive expansion of tertiary institutions in the country, provision of tertiary education in Ghana has not been adequate enough to absorb all qualified applicants. This situation has peculiar effect on women who for socio-cultural factors drop ...

  20. Tertiary Oximes on Brain Acetylcholinesterase and Central Excitatory Effects of Nerve Agents (United States)


    3. DATES COVERED (From - To) 4. TITLE AND SUBTITLE Tertiary Oximes on Brain Acetylcholinesterase and Central Excitatory Effects of Nerve 5a...pralidoxime (2-PAM) to reactivate inhibited AChE. The quaternary structure of this oxime does not allow it to cross the blood brain barrier (BBB) to...propan-1-aminium chloride (DHAP), two tertiary oximes that can penetrate the BBB, could prevent or reverse the central toxic effects of three nerve

  1. Changes in private returns to education caused by the tertiary education expansion in Slovakia


    Miroslav Stefanik


    This article brings evidence on tertiary education expansion in Slovakia and explores possible effects of this expansion on private returns to education. It focuses particularly on intergenerational differences in private returns to education. The question is whether tertiary education expansion has decreased private returns to education and whether there are differences in the value of education acquired by different generations. European Union Community Statistics on Income and Living Condi...

  2. The use of tribromoisocyanuric acid to distinguish among primary, secondary and tertiary alcohols

    Directory of Open Access Journals (Sweden)

    Lívia T. C. Crespo


    Full Text Available Primary, secondary and tertiary alcohols can be easily distinguished due to their reactivity towards tribromoisocyanuric acid (TBCA. The test is performed by adding TBCA to the alcohol in a test tube heated in a boiling water bath. Orange color develops in the tube containing the primary alcohol, light yellow is observed in the tube containing the secondary alcohol while the tertiary alcohol results in a colorless mixture.

  3. West Hackberry Tertiary Project. Annual report, September 3, 1997--September 2, 1998

    Energy Technology Data Exchange (ETDEWEB)

    Gillham, T.H.


    The following report is the Project Management Plan for the fifth year of the West Hackberry Tertiary Project. The West Hackberry Tertiary Project is one of four mid-term projects selected by the United States Department of Energy (DOE) as part of the DOE`s Class 1 Program for the development of advance recovery technologies in fluvial dominated deltaic reservoirs. The West Hackberry Tertiary Project is a field test of the idea that air injection can be combined with the Double Displacement Process to produce a low cost tertiary recovery process which is economic at current oil prices. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil by gravity drainage. The Double Displacement Process is based upon the concept that in fields such as West Hackberry waterdrive recoveries are typically 50%-60% of the original oil in place while gravity drainage recoveries average 80%-90% of the original oil in place. Therefore, by injecting a gas into a watered out reservoir, a gas cap will form an additional oil can be recovered due to gravity drainage. Although the Double Displacement Process has been shown to be successful in recovering tertiary oil in other fields, this project will be the first to utilize air injection in the Double Displacement Process. The use of air injection in this process combines the benefits of air`s low cost and universal accessibility with the potential for accelerated oil recovery due to the combustion process. If successful, this project will demonstrate that the use of air injection in the Double Displacement Process will result in an economically viable tertiary process in reservoirs where tertiary oil recovery is presently uneconomical.

  4. The use of tribromoisocyanuric acid to distinguish among primary, secondary and tertiary alcohols

    Energy Technology Data Exchange (ETDEWEB)

    Crespo, Livia T.C., E-mail: [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Instituto de Quimica. Departamento de Quimica Organica; Instituto Federal de Educacao, Ciencia e Tecnologia do Rio de Janeiro (IF-RJ), Duque de Caxias, RJ (Brazil); Mattos, Marcio C.S. de; Esteves, Pierre M. [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Instituto de Quimica. Departamento de Quimica Organica


    Primary, secondary and tertiary alcohols can be easily distinguished due to their reactivity towards tribromoisocyanuric acid (TBCA). The test is performed by adding TBCA to the alcohol in a test tube heated in a boiling water bath. Orange color develops in the tube containing the primary alcohol, light yellow is observed in the tube containing the secondary alcohol while the tertiary alcohol results in a colorless mixture. (author)

  5. Positive effects of tertiary centres for amyotrophic lateral sclerosis on outcome and use of hospital facilities. (United States)

    Chiò, A; Bottacchi, E; Buffa, C; Mutani, R; Mora, G


    To evaluate the effects of tertiary centres for amyotrophic lateral sclerosis (ALS) on ALS outcome and the use of hospital facilities. The study was based on the data of an epidemiological, prospective, population-based register on ALS (Piemonte and Valle d'Aosta Register for amyotrophic lateral sclerosis, PARALS). The 221 patients recruited between 1995 and 1996 were prospectively followed up for outcome and use of hospital-based services. In all, 97 patients were followed up by tertiary ALS centres and 124 by general neurological clinics. Patients followed up by tertiary ALS centres were found to be 4 years younger and underwent percutaneous endoscopic gastronomy and non-invasive positive-pressure ventilation more often. Patients followed up by tertiary ALS centres were found to have a considerably longer median survival time (1080 v 775 days), even when stratifying by age, site of onset and respiratory function at diagnosis. In Cox multivariate analysis, attending a tertiary ALS centre was observed to be an independent positive prognostic factor. Moreover, patients attending a tertiary ALS centre were admitted to hospital less often (1.2 v 3.3) and were more frequently admitted for planned interventions. Conversely, patients followed up by general neurological clinics were more frequently admitted for acute events. Also, the hospital stay was considerably shorter for patients attending tertiary ALS centres (5.8 v 12.4 days). Improved survival was seen in patients with ALS attending tertiary ALS centres, independently from all other known prognostic factors, possibly through a better implementation of supportive treatments. Moreover, because of these centres, the hospitalisation rate was markedly reduced, thus offering a cost-effective service to patients with ALS and to the community as a whole.

  6. Tertiary thiols from allylic thiocarbamates by tandem enantioselective [3,3]-sigmatropic rearrangement and stereospecific arylation. (United States)

    Mingat, Gaëlle; MacLellan, Paul; Laars, Marju; Clayden, Jonathan


    The synthesis of tertiary thiols in enantiomerically enriched form is accomplished by lithiation of enantiomerically enriched N-aryl allylic thiocarbamates. Formation of an allyllithium derivative promotes intramolecular N to C aryl migration to the position α to sulfur, generally with good stereospecificity. The substrates may themselves be obtained by Pd-catalyzed enantioselective [3,3]-sigmatropic rearrangement of N-aryl O-allyl thiocarbamates. Solvolysis of the product thiocarbamates yields tertiary thiols, which may be converted to sulfide derivatives.

  7. Learner anxiety and EFL learning: A study of tertiary students' and teachers' perceptions in Taiwan


    Chuang, Chieh-Hsiang


    This study investigated Taiwanese university students’ and teachers’ perceptions of foreign language anxiety in the English as a foreign language (EFL) classroom. The main aims were: (a) to identify the situations, sources, effects of, and coping tactics for the anxiety of Taiwanese tertiary students and (b) to examine tertiary English teachers’ perceptions of their students’ anxiety and how they deal with it. An anxiety scale, the ELCAS, was first administered to English major and non-Englis...

  8. West Hackberry tertiary project. Annual report, September 3, 1994--September 2, 1995

    Energy Technology Data Exchange (ETDEWEB)

    Gillham, T.; Cerveny, B.; Turek, E.


    The West Hackberry Tertiary Project is a field test of the idea that air injection can be combined with the Double Displacement Process to produce a low cost tertiary recovery process which is economic at current oil prices. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering tertiary oil by gravity drainage. The Double Displacement Process is based upon the concept that in fields such as West Hackberry waterdrive recoveries are typically 50%-60% of the original oil in place while gravity drainage recoveries average 80%-90% of the original oil in place. Therefore, by injecting a gas into a watered out reservoir, a gas cap will form and additional oil can be recovered due to gravity drainage. Although the Double Displacement Process has been shown to be successful in recovering tertiary oil in other fields, this project will be the first to utilize air injection in the Double Displacement Process. The use of air injection in this process combines the benefits of air`s low cost and universal accessibility with the potential for accelerated oil recovery due to the combustion process. If successful, this project will demonstrate that the use of air injection in the Double Displacement Process will result in an economically viable tertiary process in reservoirs where tertiary oil recovery is presently uneconomical.

  9. Trauma in Transition. (United States)

    Wilson, Peggy


    An ethnographic study examined the experiences of 23 Canadian Sioux students during their transition from a reservation elementary school to an urban public high school. Students encountered racial bias, low teacher expectations, isolation, frustration, and a lack of understanding by school personnel of cultural conflicts. Eighteen dropped out.…

  10. Military Lives: Coaching Transitions (United States)

    Beech, Nick; Gold, Jeff; Beech, Susan


    Purpose: The purpose of this paper is to first consider how veterans use talk to shape interpretations of personal and social identity. Second, this paper seeks to gain an understanding of how veterans see themselves in a civilian world, their ability to re-conceptualise and realign their perspective on life to support their transition in to a…

  11. Origins of evolutionary transitions

    Indian Academy of Sciences (India)


    Mar 15, 2014 ... I define an evolutionary transition as a shift in the hierarchical level at which heritable fitness variance ... life, for example in eusocial insects, around 150 million years ago. None of these transformations was ...... affecting and heritable trait, and to introduce a mechanism which inhibits them from subsequent ...

  12. Singing Smoothes Classroom Transitions (United States)

    Mathews, Sarah E.


    Just as humming a merry tune helped Snow White and her furry animal friends to quickly clean a filthy cottage in the movie "Snow White and the Seven Dwarfs" (Disney & Cottrell, 1937), singing can be an effective way to help keep young children fully engaged during classroom transitions. The purposes of this article are to: (1) consider why…

  13. Gas contracts in transition

    Energy Technology Data Exchange (ETDEWEB)

    Wright, A.J. [Delhi Gas Pipeline Corp., Dallas, TX (United States)


    The transition of gas marketing by producers from a regulated and structured market to an open competitive and commodity market has created new challenges for attorneys drafting gas sales contracts. This article examines the following related topics: Interruptible contracts; pricing provisions; transport imbalances.

  14. What is Transit?

    Indian Academy of Sciences (India)

    He set out to Pondicherry with the idea of observing the transit of Venus. Rough seas and the ongoing Anglo-French war delayed his journey and he had to be content watching it from the sea. Determined to see the next one slated after 8 years, he wandered between Madagaskar and Manila studying nature. Unfortunately.


    International Development Research Centre (IDRC) Digital Library (Canada)

    Cathy Egan

    from war to peace. The goal was to better understand how IDRC gathers and shares pertinent information to inform programming and decision- making. How was the Centre alerted to impending transition? How did it ... visited Burma for a first-hand look. Aiming mostly to learn more about Burma's research organizations ...


    International Development Research Centre (IDRC) Digital Library (Canada)

    Cathy Egan

    Twenty years of IDRC participation in Palestinian research have demonstrated the value of exploiting even the smallest progress when transition is otherwise failing. ... and the West Bank) served as a catalyst for a new round of intelligence gathering and analysis at IDRC. The Accords generated new hope for Palestinian ...


    International Development Research Centre (IDRC) Digital Library (Canada)

    Cathy Egan

    the early stages, capacity building might necessarily precede actual research. Above all, the particular features of any real or impending transition place a high value on strategic intelligence about local conditions. That means knowing the country, its politics, and its potential research partners even before research starts.

  18. Parametric modal transition systems

    DEFF Research Database (Denmark)

    Beneš, Nikola; Křetínský, Jan; Larsen, Kim Guldstrand


    in the refinement process like exclusive, conditional and persistent choices. We introduce a new model called parametric modal transition systems (PMTS) together with a general modal refinement notion that overcome many of the limitations and we investigate the computational complexity of modal refinement checking....

  19. Outplacement as Transition Counseling. (United States)

    Mirabile, Richard J.


    Describes outplacement counseling as a process that enables management to deal with the problem of the employee who must be released or the staff that must be reduced. Discusses the process of outplacement counseling, the stages of transition counseling, and techniques to be implemented. (BH)

  20. Lost in Transit

    DEFF Research Database (Denmark)

    Lange, Ida Sofie Gøtzsche; Laursen, Lea Louise Holst; Lassen, Claus

    Thinking of Transit Places, the first sites that comes to mind will probably be airports, train stations and motorways. Such places are overall mono-functional with the embedded rationales of people's desires to move (themselves or goods) from one place to another. Often different service functions...

  1. Logic of transition systems

    NARCIS (Netherlands)

    Benthem, Johan van; Bergstra, J.A.


    Labeled transition systems are key structures for modeling computation. In this paper, we show how they lend themselves to ordinary logical analysis (without any special new formalisms), by introducing their standard first-order theory. This perspective enables us to raise several

  2. Photoinduced phase transitions

    CERN Document Server

    Nasu, K


    A new class of insulating solids was recently discovered. Whenirradiated by a few visible photons, these solids give rise to amacroscopic excited domain that has new structural and electronicorders quite different from the starting ground state. This occurrenceis called "photoinduced phase transition", and this multi-authoredbook reviews recent theoretical and experimental studies of this newphenomenon.

  3. Variational transition state theory

    Energy Technology Data Exchange (ETDEWEB)

    Truhlar, D.G. [Univ. of Minnesota, Minneapolis (United States)


    This research program involves the development of variational transition state theory (VTST) and semiclassical tunneling methods for the calculation of gas-phase reaction rates and selected applications. The applications are selected for their fundamental interest and/or their relevance to combustion.

  4. Families in Transition . (United States)

    Bundy, Michael L., Ed.; Gumaer, James, Ed.


    Focuses on disrupted families and the role of the school counselor in helping children adjust. Describes characteristics of healthy families, and discusses the transition to the blended family, effects of divorce groups on children's classroom behavior, counseling children in stepfamilies, single-parent families, and parenting strengths of single…

  5. Transitions as Speech Acts. (United States)

    Fesmire, Alice Ann


    Reviews speech act theory to explain the function of writing transitions in terms of the illocutionary and perlocutionary effect of explicit performatives. Identifies explicit performatives in samples of professional writing in technical and academic areas. Suggest ways to revise textbooks to include the findings from speech act theory. (SR)

  6. Modeling Electromagnetic Effects in MMICs for T/R Modules (United States)


    547-550, 1986. 64 Rizzoli, Vittorio, Cecchetti, Claudio, and Lipparini , Alessandro, .Frequency Conversion in General Nonlinear Multiport Devices," IEEE...Supplementary Report, " Stanford Electronics Laboratory, Tech. Rep. 1985. Rizzoli, V., Cecchetti, C., Lipparini , A., and Mastri, F., "General-Purpose...December 1987. Rizzoli, Vittorio, Lipparini , Allenandro, and Marazzi, Ernesto, "A General-Purpose Program for Nonlinear Microwave Circuit Design," IEEE

  7. T.R. – Journal of Organizational Change Management

    NARCIS (Netherlands)

    D Pick (David); S.T.T. Teo (Stephen); L.G. Tummers (Lars); C. Newton (Cameron)


    textabstractNew public management (NPM) refers to an ideology that underpinned public sector reform of the 1980s and 1990s (Dieffenbach, 2009; Hood, 1991; Pollitt & Bouckaert, 2004; 2011). At its core was a problematisation of existing public sector institutional forms and operations for which the

  8. Page 1 18 P Ramachandrarao, S Ranganathan and T R ...

    Indian Academy of Sciences (India)

    The original gun technique devised by Duwez and Willens (1963) offers many advantages for exploratory investigations. In this method a small quantity of melt, weighing 100-500 mg, is ejected by means of a shock wave, created by rup- turing a mylar diaphragm with high pressure argon gas. The globule travels at a speed ...

  9. Biometric Secured Result Processing Software For Nigerian Tertiary Institutions

    Directory of Open Access Journals (Sweden)

    Oladipo Oluwasegun


    Full Text Available Abstract One of the challenges facing result processing in Nigerian tertiary institutions is the problem of insecurity. Untraceable changes are made to students result and this result to various disasters such as innocent people losing their jobs since their innocence cannot be proven. Biometric based systems operate on behavioral and physiological biometric data to identify a person and grant required access to a user. Physiological characteristics such as fingerprint remains unchanged throughout an individuals life time and thus it can serve as a viable means of identifying and authenticating users who are to access a system. In this study fingerprint biometric based result processing software is developed to ensure that users are well authenticated and are made to see only what they are pre-configured to see and work with. The fingerprint authentication system was developed using visual Staff fingerprints were enrolled into the system to form a biometric template which the system validates against at every login attempt on the result processing software. The digital personal one touch ID sdk and other libraries were used in developing the authentication system. The result processing software also ensures that all write transactions to the database are confirmed and identified by forcing another biometric authentication at the point of making a write request to the web server and associated database. This ensures that the exact person initiating the transaction was the same user who logged in to the application. The users identified at login and various confirmation milestones set for write transactions are logged into a table for future reference and audit trail. Conclusively the developed system has helped to eradicate the problem of user impersonation by ensuring only authorized users are made to access the software and in-turn participate in result processing activities.

  10. Indications for and outcomes of tertiary referrals in refractive surgery. (United States)

    Patryn, Eliza K; Vrijman, Violette; Nieuwendaal, Carla P; van der Meulen, Ivanka J E; Mourits, Maarten P; Lapid-Gortzak, Ruth


    To review the spectrum of disease, symptomatology, and management offered to patients referred for a second opinion after refractive surgery. A prospective cohort study was done on all patients referred from October 1, 2006, to September 30, 2011, to a tertiary eye clinic after refractive surgery of any kind (ie, corneal laser surgery, conductive keratoplasty, radial keratotomy, phakic implants, refractive lens exchanges, or any combination thereof). Data analysis was performed on all demographic and clinical aspects of this cohort, including the initial complaint, type of referral, number of complaints, procedure previously performed, diagnosis at our center, type of advice given, and rate and type of surgical intervention. One hundred thirty-one eyes (69 patients) were included. Corneal refractive surgery was performed in 82% (108 eyes), and 11% (14 eyes) were seen after phakic intraocular lens (PIOL) implantation and 7% (9 eyes) after refractive lens exchange. The most common diagnoses were tear film dysfunction (30 eyes, 23%), residual refractive error (25 eyes, 19%), and cataract (20 eyes, 15%). Most patients (42 patients, 61%) were treated conservatively. In 27 patients (39%), 36 eyes (28%) were managed surgically. Severe visual loss was seen in 1 eye. No major problems were found in most second opinions after refractive surgery referral. Dry eyes, small residual refractive error, or higher-order aberrations were the most common complaints. Surgical intervention was needed in 36 eyes (28%), almost half of which were cataract extractions. Severe visual loss was seen in 1 eye with a PIOL. There was no incidence of severe visual loss in keratorefractive and refractive lens exchange procedures. Copyright 2014, SLACK Incorporated.

  11. Survival following orbital exenteration at a tertiary brazilian hospital

    Directory of Open Access Journals (Sweden)

    Juliana Mika Kato

    Full Text Available Objective: to analyze the epidemiology, clinical features and survival rate of patients undergoing orbital exenteration (OE in a tertiary referral hospital. Methods : we conducted a retrospective study of all patients undergoing OE at the Hospital das Clínicas, FMUSP between January 2007 and December 2012. We collected data records related to gender, age, origin, length of stay, duration of the disease, other treatments related to the disease, number of procedures outside of the face related to the disease, follow-up and histological diagnosis. Results : we treated 37 patients in the study period. The average survival in one year was 70%, in two years, 66.1%, and 58.3% in three years. There was no significant difference in the one-year survival related to histological diagnosis (p=0.15, days of hospitalization (p=0.17, gender (p=0.43, origin (p=0.78, disease duration (p=0.27 or the number of operations for the tumor (p=0.31. Mortality was higher in elderly patients (p=0.02. The average years of life lost was 33.9 in patients under 60 years, 14.7 in patients in the 61-80 years range and 11.3 in patients over 80 years. Conclusion : the present series of cases is significant in terms of prevalence of orbital exenteration; on the other hand, it shows one of the lowest survival rates in the literature. This suggests an urgent need for improved health care conditions to prevent deforming, radical resections.

  12. Meconium aspiration syndrome - the experience of a tertiary center. (United States)

    Espinheira, M C; Grilo, M; Rocha, G; Guedes, B; Guimarães, H


    Approximately 5 % of infants born with a meconium-stained amniotic fluid (MSAF) develop meconium aspiration syndrome (MAS). The aims of this study were to analyse demographic data, morbidity and mortality associated with MAS and to identify possible risk factors. Retrospective chart review of newborns with MAS delivered at a tertiary centre from January 1st, 1997 to December 31st, 2008. MAS was responsible for 1.4 % of all Neonatal Intensive Care Unit (NICU) admissions, with a trend towards a decreasing incidence during the study duration, especially in the cases of thin meconium. Seventy two newborns were analysed during the study period: 55.6 % (n = 40) were of the female gender, 62.5 % were delivered by caesarean section, 93 % had > 36 weeks of gestational age and 91.2 % had a birth weight over 2500g. Sixty-nine percent had an Apgar score bradicardia was present in 26.4 % of the newborns and tachycardia in 1.4 %. The presence of meconium was associated with severe asphyxia and carried a bad prognosis with an increased risk of developing hypoxia (58.3 %), need of mechanical ventilatory support (43.1 %), respiratory and/or metabolic acidosis (30.6 %), pulmonary hypertension (11.1 %) and hypoxic ischemic encephalopathy (29.2 %). The mortality rate was 2.8 %. Thick meconium was associated with higher morbidity and mortality rates. The number of admissions for MAS has been decreasing mostly because of a lower admission rate due to thin meconium; the number of cases with thick meconium has remained constant throughout the years. An Apgar score < 7 at 1 minute and signs of foetal distress during labour were associated with MAS. The MAS related morbidity remains significant.

  13. Mainstreaming of Climate Change into the Ghanaian Tertiary Educational System (United States)

    Nyarko, B. K.


    The impact of Climate Change has a far-reaching implication for economies and people living in the fragile Regions of Africa analysts project that by 2020, between 75 million and 250 million people will be exposed various forms of Climate Change Stresses. Education as a key strategy identified under Agenda 21 has been incorporated into the efforts of various educational institutions as a means of mitigating climate change and enhancing sustainability. Climate Change education offers many opportunities and benefits for educators, researchers, learners, and for wider society, but there are also many challenges, which can hinder the successful mainstreaming of climate change education. The study aims at understanding barriers for Climate Change Education in selected tertiary institutions in Ghana. The study was conducted among Geoscience Departments of the 7 main public universities of Ghana. The transcript analysis identified issues that hinders the mainstreaming of Climate Change, these includes existing levels of knowledge and understanding of the concept of climate change, appreciating the threshold concepts, ineffective teaching of Climate Change and some Departments are slow in embracing Climate Change as a discipline. Hence to develop strategies to mainstream climate change education it is important to recognise that increasing the efficiency and delivery of Climate Change education requires greater attention and coordination of activities and updating the educators knowledge and skill's. Various Ministries should be challenged to develop and integrate climate change into education policies. In the design of curriculum, there is a need to integrate Climate Change Education into curricula without compromising already overstretched programmes of study. There is a need to encourage and enhance innovative teaching approaches such as Problem-based learning (PBL) is an approach that challenges students to learn through engagement in a real problem. Institutions and

  14. Mothers’ experiences of labour in a tertiary care hospital

    Directory of Open Access Journals (Sweden)

    M S Maputle


    Full Text Available The purpose of the study was to explore and describe experiences of mothers during childbirth in a tertiary hospital in the Limpopo Province. This was achieved through a qualitative research study which was exploratory, descriptive, contextual and inductive in nature. A sample of 24 mothers participated in this study. Data obtained from unstructured in-depth interviews were analysed according to the protocol by Tesch (1990, cited in Cresswell, 1994:155. Five themes were identified, namely mutual participation and responsibility sharing, dependency and decision-making; information sharing and empowering autonomy and informed choices; open communication and listening; accommodative/non-accommodative midwifery actions; and maximising human and material infrastructure. The themes indicated experiences that foster or promote dependency on midwifery care. Guidelines on how to transform this dependency into a mother-centered care approach during childbirth are provided. Opsomming Die doel van die studie was om moeders se belewenis van kindergeboorte in ’n tersiêre hospitaal in die Limpopo Provinsie te verken en te beskryf. Dit is gedoen deur middel van kwalitatiewe navorsing wat verkennend, beskrywend, en kontekstueel was. ‘n Steekproef van 24 moeders het aan die studie deelgeneem. Inligting is verkry deur middel van ongestruktureerde in-diepte onderhoude. Hierdie inligting is geanaliseer aan die hand van Tesch (1990: aangehaal in Creswell, 1994:155 se protokol. Die volgende kategorieë is geïdentifiseer, wedersydse deelname en gedeelde verantwoordelik- hede, afhanklikheid en besluitneming, deel van inligting, bemagtiging tot outonomie en ingeligte keuse, oop kommunikasie en luister, akkommoderende/nie-akkommoderende vroedvrou-aksies en bevordering van menslike en materiële infrastrukture. Die resultate van die onderhoude het belewenisse blootgelê wat dui op die bevordering van afhanklikheid in vroedvrouversorging. Riglyne om hierdie

  15. Near total parathyroidectomy is effective therapy for tertiary hyperparathyroidism. (United States)

    Dewberry, Lindel Krige; Weber, Collin; Sharma, Jyotirmay


    Tertiary hyperparathyroidism (3°HPT) is defined as persistent hyperparathyroidism with hypercalcemia after renal transplantation. Near total parathyroidectomy (NTPTX) is the current standard for surgical intervention. The purpose of this study was to identify outcomes of NTPTX. A retrospective review was conducted of surgeries performed between 1994 and 2013. NTPTX resulted in resolution of 96.9 per cent of patients' hypercalcemia at a median follow-up of three years (interquartile range [IQR], 1 to 8). However, 3.1 per cent of patients remained hypercalcemic with a mean calcium of 10.5 ± 0.2 mg/dL. A total of 78.4 per cent of patients had parathyroid hormone (PTH) levels below 250 pg/mL at a median follow-up of two years (IQR, 2 to 8). The remaining 21.6 per cent had a median PTH of 535 (IQR, 345 to 857). PTH levels dropped from a median of 745 (IQR, 285.75 to 1594.25) pg/mL to 97 (IQR, 60 to 285) pg/mL one month post-NTPTX (P < 0.01). The most frequent complication was transient hypocalcemia in 27.1 per cent of patients, but no patients became permanently hypocalcemic. In the 1-month postoperative period, only one patient had a cardiac complication, and there was 0 per cent all-cause mortality. Glomerular filtration rate fell from 57.9 ± 28.3 mL/min pre-NTPTX to 53.2 ± 27.5 mL/min at 1-year post-NTPTX (P < 0.01). NTPTX effectively treats hypercalcemia in 3°HPT. However, PTH remains elevated (greater than 250) in 21.6 per cent of patients.

  16. [Eosinophilic esophagitis--the experience in a tertiary pediatric center]. (United States)

    Guz-Mark, Anat; Zevit, Noam; Rosenbach, Yoram; Morgenstern, Sara; Reznik, Dana; Davidson, Keren; Shamir, Raanan; Livni, Gilat


    Eosinophilic esophagitis (EoE) is an inflammatory disorder with increasing prevalence. It typically presents with swallowing difficulties, heartburn or dyspepsia, and in toddlers, failure to thrive. EoE is characterized by eosinophilic infiltrates of the esophageal mucosa, and endoscopies with tissue diagnosis are mandatory. Hypersensitivity has been implicated in the pathogenesis, therefore, most treatment options include steroids and allergen avoidance. To summarize a tertiary pediatric clinic's experience with EoE in children and adolescents, describe the spectrum of clinical presentations and treatment options, and raise awareness of this disorder among medical personnel. A retrospective, descriptive study of patients diagnosed with EoE at our institute over the past 5 years. Demographic details, presenting symptoms, laboratory studies, endoscopic and pathologic findings were analyzed. Information regarding medical and nutritional therapies and response to treatment were summarized. Fifteen cases of EoE in children and adolescents are described. Average age at diagnosis was 9 years (range 0.7-161. The most common complaint was dysphagia (60%e. The majority demonstrated food allergies 19/121. Most of the patients were treated with topical ingested steroids, while others had either elemental formula or allergen elimination. Favorable responses were seen in most patients treated with steroids (8/11). Long-term results of nutritional therapy are insufficient to draw conclusions on its efficacy. EoE causes major eating difficulties and affects quality of life in children, sometimes accompanied by failure to thrive. There is a clear association with food allergies, and positive responses to steroids are common. A high index of suspicion and referral to a gastroenterologist for definite diagnosis are required. Combining medical with nutritional treatment seems promising but further studies regarding the long-term outcome are needed.

  17. Multiphoton ionization-fragmentation patterns of tertiary amines (United States)

    Parker, D. H.; Bernstein, R. B.; Lichtin, D. A.


    Multiphoton ionization (MPI)-fragmentation patterns are reported for a series of normal and caged tertiary amines. Ionization is enhanced by two-photon resonance with the 3s and 3p Rydberg states of trimethylamine, triethylamine, and the caged amines quinuclidine and triethylenediamine. Over the wavelength region λ = 400-530 nm, N(CH3)3 ionizes to the parent ion (P) and fragments only by the loss of a H atom to yield the P-H daughter ion; N(C2H5)3 ionizes to its parent ion and fragments by the loss of a methyl to form the P-CH3 ion. The branching ratio of daughter to parent ions is found to be essentially independent of laser intensity but strongly dependent on laser wavelength. The caged amines quinuclidine [N(C2H4)3CH, or ABCO] and triethylenediamine [N(C2H4)3N, or DABCO] fragment extensively over this λ range in a manner dependent on both laser wavelength and intensity. The extent of daughter ion formation in N(CH3)3 and N(C2H5)3 can be understood by consideration of the wavelength regions in which the total available energy from the initial three- or four-photon ionization event exceeds the appearance potential of the given daughter ion. For the caged amines direct observation of this mechanism is masked by fragmentation due to sequential absorption of photons (during the ˜5 ns pulse duration) by the parent and/or daughter ions. The present results show that even for molecules with broad, unstructured UV absorption and MPI spectra such as N(CH3)3 and N(C2H5)3, considerable information on photon-molecule and photon-ion interactions can still be gained by the MPI mass spectrometry technique.

  18. Spectrum of vaginal discharge in a tertiary care setting (United States)

    Sivaranjini, R; Jaisankar, TJ; Thappa, Devinder Mohan; Kumari, Rashmi; Chandrasekhar, Laxmisha; Malathi, M; Parija, SC; Habeebullah, S


    Introduction: Vaginal discharge is one of the common reasons for gynecological consultation. Many of the causes of vaginitis have a disturbed vaginal microbial ecosystem associated with them. Effective treatment of vaginal discharge requires that the etiologic diagnosis be established and identifying the same offers a precious input to syndromic management and provides an additional strategy for human immunodeficiency virus prevention. The present study was thus carried out to determine the various causes of vaginal discharge in a tertiary care setting. Materials and Methods: A total of 400 women presenting with vaginal discharge of age between 20 and 50 years, irrespective of marital status were included in this study and women who had used antibiotics or vaginal medication in the previous 14 days and pregnant women were excluded. Results: Of the 400 women with vaginal discharge studied, a diagnosis was established in 303 women. Infectious causes of vaginal discharge were observed in 207 (51.75%) women. Among them, bacterial vaginosis was the most common cause seen in 105 (26.25%) women. The other infections observed were candidiasis alone (61, 15.25%), trichomoniasis alone (12, 3%), mixed infections (22, 5.5%) and mucopurulent cervicitis (7 of the 130 cases looked for, 8.46%). Among the non-infectious causes, 72 (18%) women had physiological vaginal discharge and 13 (3.3%) women had cervical in situ cancers/carcinoma cervix. Conclusion: The pattern of infectious causes of vaginal discharge observed in our study was comparable with the other studies in India. Our study emphasizes the need for including Papanicolaou smear in the algorithm for evaluation of vaginal discharge, as it helps establish the etiology of vaginal discharge reliably and provides a valuable opportunity to screen for cervical malignancies. PMID:24470998

  19. Primary salivary gland tumors in eastern Nepal tertiary care hospital. (United States)

    Nepal, A; Chettri, S T; Joshi, R R; Bhattarai, M; Ghimire, A; Karki, S


    The knowledge of the distribution and pattern of salivary gland tumors in the tertiary care center can provide overview of the disease pattern in the region. It also helps in planning the strategies to treat the disease and launch the awareness program in the community to this largely curable disease. A retrospective observational study of all the salivary gland tumors treated in the department of Otolaryngology, B. P. Koirala Institute of Health Sciences during April 2004 to March 2009 was done. Age, sex, presenting features, radiological findings, histopathological type of the tumor and type of surgery were recorded and descriptive analysis was done to calculate frequencies, percentage and their relations. Out of total 51 cases, 81% (n=41) were benign and 19% (n=10) malignant tumors. Male to female ratio was 1:2.1. Mean age for benign and malignant tumors were 32.3 and 46.5 years respectively. Parotid tumor outnumbered all other sites comprising 69%, followed by submandiibular 18% and minor glands 13%. Pleomorphic adenoma was the commonest tumor (76%) of all primary salivary gland tumors. Benign to malignant tumor ratio of parotid, submandibular and minor glands were 6:1, 3.5:1 and 1.3:1 respectively. Adenoid cystic carcinoma (40%) and mucoepidermoid carcinoma (30%) were commonest malignant tumors. The principal site for salivary gland tumors in eastern Nepal population was the parotid and the pleomorphic adenoma outnumbered all other tumors. Most of the cases in both benign and malignant group presented with painless lump often misleading the gravity of disease.

  20. Malaysian Instructors’ Assessment Beliefs in Tertiary ESL Classrooms

    Directory of Open Access Journals (Sweden)

    Niveen R. M. Elshawa


    Full Text Available Language assessment can be a valuable tool for providing information regarding language teaching. Given the importance of assessment that has undergone much change, there are important issues that warrant investigation, particularly those related to language instructors. Understanding the assessment beliefs of ESL instructors, especially at the tertiary level, is important since it can help improve the quality of assessment practices as well. Therefore, this study investigated English language instructors’ assessment beliefs in the Malaysian context. This study adopted a cross-sectional research design. The survey method was utilized to collect data from six Malaysian universities using a purposive sampling strategy. English language instructors (n=83 were selected via purposive sampling for the study. Findings of the study revealed that English language instructors believed that the purpose of assessment was to improve teaching and learning. Regarding the assessment beliefs that are related to the assessment purposes, analyses of data showed that the items that received the highest percentage of agreement were diagnosing strength and weaknesses in students, providing information about students’ progress and providing feedback to students as they learn, respectively. Although they reported using both formal and informal assessment of their students’ work, English language instructors relied heavily on paper and pencil assessment while giving more weightage on formative assessment. The majority of English language instructors reported employing marking schemes for the courses they taught, carrying out sample marking and providing feedback. Finally, English language instructors reported using different types of assessments for every language skill taught in their language unit/center. The findings highlight the fact that English instructors should be more empowered in their role as the assessors of students. Their knowledge about what, how

  1. Fetal dextrocardia: diagnosis and outcome in two tertiary centres (United States)

    Bernasconi, A; Azancot, A; Simpson, J M; Jones, A; Sharland, G K


    Objective: To evaluate the incidence of fetal dextrocardia, associated cardiac and extracardiac malformations, and outcome. Design: Retrospective echocardiographic study. Setting: Two tertiary centres for fetal cardiology. Patients: 81 consecutive fetuses with a fetal dextrocardia presenting at Guy’s Hospital, London, between 1983 and 2003 and at Hôpital Robert Debré, Paris, between 1988 and 2003. Fetal dextrocardia was defined as a condition in which the major axis of the heart points to the right. Results: The incidence was 0.22%. There were 38 fetuses (47%) with situs solitus (SS), 24 (30%) with situs ambiguus (SA), and 19 (23%) with situs inversus (SI). Structural cardiac malformations were found in 25 cases (66%) of SS, 23 cases (96%) of SA, and 12 cases (63%) of SI. Extracardiac malformations were identified in 12 cases (31%) of SS, in five cases (21%) of SA, and in two cases (10%) of SI. Of the 81 cases of fetal dextrocardia, there were 27 interrupted pregnancies (15 of 24 SA, 10 of 38 SS, and 2 of 19 SI), six intrauterine deaths (3 of 38 SS, 2 of 24 SA, and 1 of 19 SI), and five neonatal deaths (3 of 24 SA, 1 of 19 SI, and 1 of 38 SS). There were 43 survivors (24 of 38 SS, 15 of 19 SI, and 4 of 24 SA). Conclusion: The majority of fetuses with dextrocardia referred for fetal echocardiography have associated congenital heart disease. There is a broad spectrum of cardiac malformation and the incidence varies according to the atrial situs. Fetal echocardiography enables detection of complex congenital heart disease so that parents can be appropriately counselled. PMID:16287744

  2. Transition pedagogies and the neoliberal episteme: What do academics think?

    Directory of Open Access Journals (Sweden)

    Kate Hughes


    Full Text Available There has been much discussion of the massification of higher education and its impact on contemporary universities in terms of increased demands on academic staff in the context of neoliberal managerialism, and the power regimes which govern the sector. Less is written about the pedagogies used under neoliberalism. Many academics view tertiary education as both an individually and socially transformative process, and there is a sense that the current discursive environment engenders an inertia wherein this commitment is lost. This paper focusses on a small qualitative study of staff working in two universities at the bottom of the league tables. Their perceptions of pedagogical work and their views of their transformative potential under neoliberalism is discussed. The argument is made that there is the potential for building a space for critical education in contemporary universities. This article explores these issues, arguing that the use of transition pedagogies can create a transformative education.

  3. Colonic transit in children and adolescents with chronic constipation. (United States)

    Carmo, Rafael L M L; Oliveira, Raquel P M; Ribeiro, Antonio E A; Lima, Mariana C L; Amorim, Bárbara J; Ribeiro, Antonio Fernando; Ramos, Celso D; Bustorff-Silva, Joaquim M; Lomazi, Elizete A


    The aim of this study was to assess clinical features and colonic transit patterns in Brazilian children with refractory constipation. From 2010 to 2013, 79 constipated patients received follow-up care in a tertiary hospital. Of these patients, 28 (aged 8-14 years) were refractory to conventional therapy and underwent a simplified visual method of nuclear colonic transit study, by ingestion of a liquid meal containing 9.25 MBq/kg of (99m)Tc-phytate. Abdominal static images were taken immediately and at two, six, 24, 30, and 48h after ingestion for qualitative analysis of the radio marker progression through the colon. Two patterns of colonic transit were found: slow colonic transit (SCT, n=14), when images at 48h showed a larger part of the tracer remained in proximal and transverse colon, and distal retention (DR, n=14), when after 30h, the radio isotope passed the transverse colon and was retained in the rectosigmoid up to 48h. The SCT and DR group included, respectively, nine and ten males; median ages in the nuclear study of 11 and 10 years, p=0.207; median duration of constipation of seven and six years, p=0.599. Constipation appearing during first year age (p=0.04) and report of soft stools (p=0.02) were more common in SCT patients. Palpable abdominal fecal impaction was found only in DR group. Appendicostomy for antegrade continence enema was successful in 4/12 (30%) of SCT patients (median follow-up: 2.4 years). Nuclear transit study distinguished two colonic dysmotility patterns and was useful for guiding refractory patients to specific therapies. Copyright © 2015 Sociedade Brasileira de Pediatria. Published by Elsevier Editora Ltda. All rights reserved.

  4. Caltrans : transit funding manual : managing the delivery of transit projects (United States)


    This manual attempts to provide a step by step transit funding process. Included in this manual : is an overview of Caltrans Division of Mass Transportation, roles and responsibilities in : assisting local agencies to deliver transit projects. Transi...

  5. The Mongolia experience: transitioning within transition. (United States)

    MacKenzie, Richard G


    Although Mongolia has a long and distinguished history, as a new and emerging democracy it is experiencing the pains of transition-one that is moving the country from its pastoral and nomadic past into the 21st century. Confounded by its previous dependence on socialist Soviet Russia, the concept of a market economy seems opportunistic for some, while for those living within the traditional lifestyle of the herdsman in the countryside it is confusing and threatening to family structure and values. Adolescents and young adults are caught at the interface-not only of their own development, but by the disparities between tradition and Western values, new technology, and freedoms granted by the emerging democracy, and by the civic practice of democracy itself. Conceptually the new belongs to the young, and yet limited health and educational resources are available to modulate and focus both threats and opportunities. Using the analogy of the spirit banner of the warrior, it is the young as the warriors of the 21st century who have the energy and investment in the future that will be needed to shepherd this change. Both personal and public health, within the context of development, the psychobiological model, and the political and social ecology will be strong determinants of success. It is a parallel investment in both youth and the ideals they represent that will ensure success for the new Mongolia.

  6. Jamming transitions in cancer (United States)

    Oswald, Linda; Grosser, Steffen; Smith, David M.; Käs, Josef A.


    The traditional picture of tissues, where they are treated as liquids defined by properties such as surface tension or viscosity has been redefined during the last few decades by the more fundamental question: under which conditions do tissues display liquid-like or solid-like behaviour? As a result, basic concepts arising from the treatment of tissues as solid matter, such as cellular jamming and glassy tissues, have shifted into the current focus of biophysical research. Here, we review recent works examining the phase states of tissue with an emphasis on jamming transitions in cancer. When metastasis occurs, cells gain the ability to leave the primary tumour and infiltrate other parts of the body. Recent studies have shown that a linkage between an unjamming transition and tumour progression indeed exists, which could be of importance when designing surgery and treatment approaches for cancer patients.

  7. Map Projection Transitions

    Directory of Open Access Journals (Sweden)

    Nedjeljko Frančula


    Full Text Available Map Projection Transitions is a very successful web application about map projections. The web page ( pre­sents a world map with graticule and country borders in the oblique Aitoff projection, with the South Pole. The map is not static, but animated. The South Pole moves toward the bottom and Earth rotates around its poles. The animation lasts five seconds, after which the projection changes and movement continues for five seconds, after which the projection changes again. Names of projections appear in a separate window. There are a total of 56 projections. The South Pole eventually becomes invisible and the North Pole appears at the top. Various parts of Earth appear in the center of the map by rotating around the poles.

  8. Global transition i sundhed

    DEFF Research Database (Denmark)

    Bygbjerg, Ib Christian; Meyrowitsch, Dan W


    Global epidemiological transition reflected in changed patterns of death and diseases was first described by Omran; decreasing death and disease rates from infectious diseases, particularly in children and the young, are followed by decreased fertility rate and increased longevity, and by degener......Global epidemiological transition reflected in changed patterns of death and diseases was first described by Omran; decreasing death and disease rates from infectious diseases, particularly in children and the young, are followed by decreased fertility rate and increased longevity......, and by degenerative, and man-made diseases in ageing populations. Omran could not foresee the HIV/AIDS pandemic or the dramatic fall in longevity and fertility in, for example, Russia. But his model remains of value for health planners and politicians. We advocate for research in the interplay between diseases...

  9. Transition Radiation Detectors

    CERN Document Server

    Andronic, A


    We review the basic features of transition radiation and how they are used for the design of modern Transition Radiation Detectors (TRD). The discussion will include the various realizations of radiators as well as a discussion of the detection media and aspects of detector construction. With regard to particle identification we assess the different methods for efficient discrimination of different particles and outline the methods for the quantification of this property. Since a number of comprehensive reviews already exist, we predominantly focus on the detectors currently operated at the LHC. To a lesser extent we also cover some other TRDs, which are planned or are currently being operated in balloon or space-borne astro-particle physics experiments.

  10. Global transition in health

    DEFF Research Database (Denmark)

    Bygbjerg, Ib Christian; Meyrowitsch, Dan W


    "Tempora mutantur et nos in illis" King Lothar I remarked by year 900 AD. What exactly changed in us over time, i.e. how patterns of the epidemiological transition in populations locally and globally might appear, was described by Omran in 1971 [1]. The effect of transition on health and diseases...... in populations was demonstrated by Frenkl et al in 1991 [2]. And which major public health problems following each other, and why, was underscored by LaPorte in 1995 [3]. In 2000, leaders of the world society decided to identify a range of common goals, the Millennium Development Goals (MDG), to be reached...... by year 2015. Many of the MDG are directly or indirectly related with the major health problems, particularly those hitting the poorest: lack of clean drinking water, unhealthy environment, high maternal mortality due to lack of care for the pregnant, and lack of control of major communicable, often fatal...

  11. NPS national transit inventory, 2013 (United States)


    This document summarizes key highlights from the National Park Service (NPS) 2013 National Transit Inventory, and presents data for NPS transit systems system-wide. The document discusses statistics related to ridership, business models, fleet charac...

  12. Nav Status & Daily Transit Report - (United States)

    Department of Transportation — Displays a breakdown of vessel transit through Eisenhower lock in Massena, NY by different types of vessels and comparing current year transits to the year previous....

  13. 2008 Enterprise Transition Plan (ETP)

    National Research Council Canada - National Science Library

    England, Gordon


    The Enterprise Transition Plan (ETP) is the Department of Defense's integrated business transformation plan, which incorporates the transition plans of the Military Services, Components and the DoD Enterprise...

  14. Philosophical explorations on energy transition

    NARCIS (Netherlands)

    Geerts, Robert-Jan


    This dissertation explores energy transition from a philosophical perspective. It puts forward the thesis that energy production and consumption are so intimately intertwined with society that the transition towards a sustainable alternative will involve more than simply implementing novel

  15. ATLAS Transitional Radiation Tracker

    CERN Multimedia

    ATLAS Outreach


    This colorful 3D animation is an excerpt from the film "ATLAS-Episode II, The Particles Strike Back." Shot with a bug's eye view of the inside of the detector. The viewer is taken on a tour of the inner workings of the transitional radiation tracker within the ATLAS detector. Subjects covered include what the tracker is used to measure, its structure, what happens when particles pass through the tracker, how it distinguishes between different types of particles within it.

  16. Entrepreneurship and Economic Transition


    Ruta Aidis


    Identification of the entrepreneur's economic function has engaged economistsfor more than 200 years. In this paper we address the issue of entrepreneurship intwo distinct ways: a) as it has historically developed within the field of economicsand b) as it develops in the transitional context. In contrast to advanced westerneconomies, productive entrepreneurship cannot be taken for granted in transitioncountries. Therefore we propose a working definition and model for productiveentrepreneurshi...

  17. Empowering Students in Transition


    Ann-Catherine Sullivan


    The purpose of this study was to (a) identify potential benefits for students with disabilities taking part in a physical activity program with same-age typical peers on a Midwest university campus and (b) to determine if the program impacted the students with disabilities empowerment. Empowerment theory was used to determine how transition students’ attitudes change over the course of the semester while participating in a workout buddy program with same-age college peers. The program was str...

  18. Eccentricity from transit photometry

    DEFF Research Database (Denmark)

    Van Eylen, Vincent; Albrecht, Simon


    and can be described by a Rayleigh distribution with $\\sigma$ = 0.049 $\\pm$ 0.013. This is in full agreement with solar system eccentricities, but in contrast to the eccentricity distributions previously derived for exoplanets from radial velocity studies. Our findings are helpful in identifying which...... (TTVs), and we present some previously unreported TTVs. Finally transit durations help distinguish between false positives and true planets and we use our measurements to confirm six new exoplanets....

  19. The Need for Transition (United States)


    Many wonder if the transition that occurred, or failed to occur in Iraq in the spring and summer of 2003, was a byproduct of poor planning or was believed that Phases I-III would take up to as much as 135 days, while General Tommy Franks, CENTCOM Commander, explained to President Bush on...The Royal United Services Institute 2003. Franks, Tommy , with Malcolm McConnell, American Soldier, New York: Reagan Books, 2004. Gordon

  20. Empowerment translated to transition


    Chatterjee, Susmita


    This is well noted that women have been subjugated by the throes of patriarchy. They have been bounded by certain gendered social and cultural norms.In this study, we have found that being empowered by joining the self help gropus and with change in lifestyle factors along with sense of self esteem women influence the child birth decision which is leading to demographic transition irrespectiv of their settlement places.

  1. Stimulated coherent transition radiation

    Energy Technology Data Exchange (ETDEWEB)

    Hung-chi Lihn


    Coherent radiation emitted from a relativistic electron bunch consists of wavelengths longer than or comparable to the bunch length. The intensity of this radiation out-numbers that of its incoherent counterpart, which extends to wavelengths shorter than the bunch length, by a factor equal to the number of electrons in the bunch. In typical accelerators, this factor is about 8 to 11 orders of magnitude. The spectrum of the coherent radiation is determined by the Fourier transform of the electron bunch distribution and, therefore, contains information of the bunch distribution. Coherent transition radiation emitted from subpicosecond electron bunches at the Stanford SUNSHINE facility is observed in the far-infrared regime through a room-temperature pyroelectric bolometer and characterized through the electron bunch-length study. To measure the bunch length, a new frequency-resolved subpicosecond bunch-length measuring system is developed. This system uses a far-infrared Michelson interferometer to measure the spectrum of coherent transition radiation through optical autocorrelation with resolution far better than existing time-resolved methods. Hence, the radiation spectrum and the bunch length are deduced from the autocorrelation measurement. To study the stimulation of coherent transition radiation, a special cavity named BRAICER is invented. Far-infrared light pulses of coherent transition radiation emitted from electron bunches are delayed and circulated in the cavity to coincide with subsequent incoming electron bunches. This coincidence of light pulses with electron bunches enables the light to do work on electrons, and thus stimulates more radiated energy. The possibilities of extending the bunch-length measuring system to measure the three-dimensional bunch distribution and making the BRAICER cavity a broadband, high-intensity, coherent, far-infrared light source are also discussed.

  2. Site-selective and stereoselective functionalization of non-activated tertiary C–H bonds (United States)

    Liao, Kuangbiao; Pickel, Thomas C.; Boyarskikh, Vyacheslav; Bacsa, John; Musaev, Djamaladdin G.; Davies, Huw M. L.


    The synthesis of complex organic compounds usually relies on controlling the reactions of the functional groups. In recent years, it has become possible to carry out reactions directly on the C–H bonds, previously considered to be unreactive. One of the major challenges is to control the site-selectivity because most organic compounds have many similar C–H bonds. The most well developed procedures so far rely on the use of substrate control, in which the substrate has one inherently more reactive C–H bond or contains a directing group or the reaction is conducted intramolecularly so that a specific C–H bond is favoured. A more versatile but more challenging approach is to use catalysts to control which site in the substrate is functionalized. p450 enzymes exhibit C–H oxidation site-selectivity, in which the enzyme scaffold causes a specific C–H bond to be functionalized by placing it close to the iron–oxo haem complex. Several studies have aimed to emulate this enzymatic site-selectivity with designed transition-metal catalysts but it is difficult to achieve exceptionally high levels of site-selectivity. Recently, we reported a dirhodium catalyst for the site-selective functionalization of the most accessible non-activated (that is, not next to a functional group) secondary C–H bonds by means of rhodium-carbene-induced C–H insertion. Here we describe another dirhodium catalyst that has a very different reactivity profile. Instead of the secondary C–H bond, the new catalyst is capable of precise site-selectivity at the most accessible tertiary C–H bonds. Using this catalyst, we modify several natural products, including steroids and a vitamin E derivative, indicating the applicability of this method of synthesis to the late-stage functionalization of complex molecules. These studies show it is possible to achieve site-selectivity at different positions within a substrate simply by selecting the appropriate catalyst. We hope that this work will

  3. Controlled crystal dehydration triggers a space-group switch and shapes the tertiary structure of cytomegalovirus immediate-early 1 (IE1) protein. (United States)

    Klingl, Stefan; Scherer, Myriam; Stamminger, Thomas; Muller, Yves A


    Cytomegalovirus immediate-early 1 (IE1) protein is a key viral effector protein that reprograms host cells. Controlled dehydration experiments with IE1 crystals not only extended their diffraction limit from 2.85 to 2.3 Å resolution but also triggered a monoclinic to tetragonal space-group transition with only minor alterations in the unit-cell parameters. An analysis of the pre-dehydration and post-dehydration crystal structures shows how dehydration rearranges the packing of IE1 molecules to meet the unit-cell constraints of the higher lattice symmetry. The transition from P21 to P43 reduces the number of copies in the asymmetric unit from four to two, and molecules previously related by noncrystallographic symmetry merge into identical crystallographic copies in the tetragonal space group. At the same time, dehydration considerably alters the tertiary structure of one of the two remaining IE1 chains in the asymmetric unit. It appears that this conformational switch is required to compensate for a transition that is assumed to be unfavourable, namely from a highly preferred to a rarely observed space group. At the same time, the dehydration-triggered molecular reshaping could reveal an inherent molecular flexibility that possibly informs on the biological function of IE1, namely on its binding to target proteins from the host cell.

  4. Glaucoma Blindness at a Tertiary Eye Care Center. (United States)

    Stone, Jordan S; Muir, Kelly W; Stinnett, Sandra S; Rosdahl, Jullia A


    Glaucoma is an important cause of irreversible blindness. This study describes the characteristics of a large, diverse group of glaucoma patients and evaluates associations between demographic and clinical characteristics and blindness. Data were gathered via retrospective chart review of patients (N = 1,454) who were seen between July 2007 and July 2010 by glaucoma service providers at Duke Eye Center. Visual acuity and visual field criteria were used to determine whether patients met the criteria for legal blindness. Descriptive and comparative statistical analyses were performed on the glaucoma patients who were not blind (n = 1,258) and those who were blind (n = 196). A subgroup analysis of only those patients with primary open-angle glaucoma was also performed. In this tertiary care population, 13% (n = 196) of glaucoma patients met criteria for legal blindness, nearly one-half of whom (n = 94) were blind from glaucoma, and another one-third of whom (n = 69) had glaucoma-related blindness. The most common glaucoma diagnosis at all levels of vision was primary open-angle glaucoma. A larger proportion of black patients compared with white patients demonstrated vision loss; the odds ratio (OR) for blindness was 2.25 (95% CI, 1.6-3.2) for black patients compared with white patients. The use of systemic antihypertensive medications was higher among patients who were blind compared with patients who were not blind (OR = 2.1; 95% CI, 1.4-3.1). A subgroup analysis including only patients with primary open-angle glaucoma showed similar results for both black race and use of systemic antihypertensive medications. The relationship between use of systemic antihypertensive medications and blindness was not different between black patients and white patients (interaction P = .268). Data were based on chart review, and associations may be confounded by unmeasured factors. Treated systemic hypertension may be correlated with blindness, and the cause cannot be explained solely

  5. Economic Growth Models Transition

    Directory of Open Access Journals (Sweden)

    Coralia Angelescu


    Full Text Available The transitional recession in countries of Eastern Europe has been much longer than expected. The legacy and recent policy mistakes have both contributed to the slow progress. As structural reforms and gradual institution building have taken hold, the post-socialist economics have started to recover, with some leading countries building momentum toward faster growth. There is a possibility that in wider context of globalization several of these emerging market economies will be able to catch up with the more advanced industrial economies in a matter of one or two generations. Over the past few years, most candidate countries have made progress in the transition to a competitive market economy, macroeconomic stabilization and structural reform. However their income levels have remained far below those in the Member States. Measured by per capita income in purchasing power standards, there has been a very limited amount of catching up over the past fourteen years. Prior, the distinctions between Solow-Swan model and endogenous growth model. The interdependence between transition and integration are stated in this study. Finally, some measures of macroeconomic policy for sustainable growth are proposed in correlation with real macroeconomic situation of the Romanian economy. Our study would be considered the real convergence for the Romanian economy and the recommendations for the adequate policies to achieve a fast real convergence and sustainable growth.

  6. [Peruvian demographic transition]. (United States)

    Carbajal Chirinos, C


    The demographic transition is conceptualized as the historic change from high to low fertility and mortality rates in a population. Peru's population was reduced by an estimated 80% as a result of new diseases, destruction of the economy, and the brutal regime of colonial exploitation after the Spanish conquest. From colonial times to the least the 1940s, Peru's principal population problem was the scarcity of manpower. The population grew at an annual rate of about .03% between 1650 and 1800, increasing to about 1.3% between 1876 and 1940. High fertility throughout the 19th century and a stabilization of mortality due to reduced incidence and deadliness of epidemics contributed to the increased growth rate. In the 1940s the process of demographic transition was initiated by abrupt declines in mortality. The crude death rate declined from 27/1000 in 1940 to 16/1000 in 1961 and 9/1000 in 1988, with the rate still declining. Fertility remained high and possibly increased slightly. The crude birth rate was estimated at 45/1000 in 1940 and 45.4/1000 in 1961. Improvements in infant and general mortality rates in developing countries like Peru result from diffusion of technological advances in prevention and control of diseases and improvement in health services rather than from changes in the economic and social structure. The 3rd phase of the demographic transition began with declines in fertility from 45.4/1000 in 1961 to 42.0/1000 in 1972 and 36.0/1000 in 1981. Despite declines, mortality and fertility continue to be elevated in Peru. The theory of demographic transition views the reduction of infant mortality, improvements in health and educational conditions and the condition of women, and more equitable income distribution as essential for a true decline in birth rates. In Peru, however, fertility has declined in a context of deteriorating living conditions and in the absence of effective family planning programs. The process of demographic transition must be

  7. Assessing the energy and environmental performance of algae-mediated tertiary treatment of estrogenic compounds. (United States)

    Colosi, Lisa M; Resurreccion, Eleazer P; Zhang, Yongli


    This study uses a systems-level modeling approach to illustrate a novel synergy between municipal wastewater treatment and large-scale algaculture for production of bio-energy, whereby algae-mediated tertiary treatment provides efficient removal of unregulated, strongly estrogenic steroid hormones from the secondary effluent. Laboratory results from previously published studies suggested that algae-mediated treatment could deliver roughly 75-85% removal of a model estrogen (17β-estradiol) within typical algae pond residence times. As such, experimental results are integrated into a comprehensive life cycle assessment (LCA) framework, to assess the environmental performance of an algae-based tertiary treatment system relative to three conventional tertiary treatments: ozonation, UV irradiation, and adsorption onto granular activated carbon. Results indicate that the algae-mediated tertiary treatment is superior to the selected benchmarks on the basis of raw energy return on investment (EROI) and normalized energy use per mass of estrogenic toxicity removed. It is the only tertiary treatment system that creates more energy than it consumes, and it delivers acceptable effluent quality for nutrient and coliform concentrations while rendering a significant reduction in estrogenic toxicity. These results highlight the dual water and energy sustainability benefits that accrue from the integration of municipal wastewater treatment and large-scale algae farming.

  8. Detailed analysis of electricity consumption in tertiary buildings as a basis for energy efficiency policies

    Energy Technology Data Exchange (ETDEWEB)

    Gruber, Edelgard [Fraunhofer Inst. for Systems and Innovation Research (Fraunhofer ISI) (Germany); Sofronis, Ilias [Centre for Renewable Energy Sources (CRES) (Greece); Dusee, Rinto [Weerdenburg Huisvesting Consultants (WHC) (Netherlands); Plesser, Stefan [Inst. for Building and Solar Technology (IGS), Technical Univ. Braunschweig (Germany)


    Electricity consumption in the tertiary sector is still increasing - by 3 % per year between 1995 and 2005 in the EU-25 countries - and a further increase is expected of more than 2 % per year over the next 15 years. The tertiary sector includes companies and institutions of public and private services with very heterogeneous economic and energy-related characteristics. A study of the current state of data in the tertiary sector in European countries revealed that the availability of disaggregated data on electricity consumption and its use by purpose (lighting, office equipment, ventilation, air conditioning, etc.) is poor. Building managers and decision-makers are not well enough informed about the electricity consumption structure and electricity-saving potentials. EL-TERTIARY develops a harmonised methodology for monitoring electricity consumption and applies it in more than 100 cases in 12 EU countries. Implications for dissemination and energy efficiency policies will be derived. It is regarded as important to have an exchange of experiences on these issues within the scientific community and with actors and decision-makers in order to develop efficient instruments for practical use. EL-TERTIARY is an EU Intelligent Energy project under Key Action 4 'Energy efficient equipment and products'.

  9. Modification of the inlet to the tertiary air duct in the cement kiln installation

    Directory of Open Access Journals (Sweden)

    Borsuk Grzegorz


    Full Text Available Rotary kiln installation forms a very complex system, as it consists of various components which affect cement production. However, some problems with particle settling are encountered during operation of tertiary air installation. This paper reports on the results of a study into gas-particle flow in a tertiary air duct installation. This flow was calculated using Euler method for air motion and Lagrange method for particle motion. The results in this paper demonstrate that study focus on the tertiary air installation is a practical measure without the analysis of other processes in the rotary kiln. A solution to this problem offers several alternatives of modifying the inlet to the tertiary air duct. As a result of numerical calculations, we demonstrate the influence of geometry of a rotary kiln modification on the number of large particles transported in the tertiary air duct. The results indicate that in order to reduce large particles, rotary kiln head geometry needs to be modified, and a particle settler should be installed at its outlet.

  10. Comparison of biomechanical and anthropometrical data of Nigeria tertiary institution students with some selected countries

    Directory of Open Access Journals (Sweden)

    S.O. Ismaila


    Full Text Available The anthropometric data of student in selected tertiary institutions in Abeokuta, Ogun State, Nigeria was investigated and this was compared with some selected foreign countries. The study was to determine whether design improvement and further study is required in order to improve the conditions in Nigeria tertiary institutions. The anthropometrics measurements data were collected from 720 students of selected institutions. The data indicate a substantial degree of variability between the Nigerian tertiary students’ body and the foreign counterparts. Since most of the furniture in use in our tertiary institutions in Abeokuta, Nigeria were designed and constructed using the anthropometric data of students in foreign countries, there is need for anthropometric data of Nigerian students in the tertiary institution for the design and construction of furniture to suit them. The result is of great concern which could affect students in other institutions throughout Nigeria and could also pose a great risk of having back problem among students in Nigeria. Statement of Relevancy: The chair and table used in Nigeria were designed with reference to the measurement of other countries. The database of the Nigerian students will be very useful parameter in guiding principle for the designing of future equipment to be used in classrooms, laboratories and lecture theaters of the institutions.

  11. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Preliminary Evaluation Results

    Energy Technology Data Exchange (ETDEWEB)

    Chandler, K.; Eudy, L.


    This report provides an evaluation of three prototype fuel cell-powered transit buses operating at AC Transit in Oakland, California, and six baseline diesel buses similar in design to the fuel cell buses.

  12. Tertiary dendritic instability in late stage solidification of Ni-based superalloys (United States)

    Franke, M. M.; Singer, R. F.; Steinbach, I.


    Derivatives of the commercial alloy CMSX-4 were directionally solidified and characterized with respect to their final dendrite microstructure. The results indicate that Ni-based superalloys with high segregation levels show significant instability in secondary dendrite arms and an increased tendency for tertiary arm formation, respectively. Phase-field simulations were used to explore the impact of chemical composition on morphological instability and tertiary arm formation during the directional solidification of Ni-based superalloys. It is found that an increase in specific alloying elements in the overall alloy composition leads to pronounced segregation at the end of solidification. This causes strong growth restriction of the secondary arms and triggers tertiary arm formation. The proposed mechanism explains experimental microstructures found in modifications of the base alloy CMSX-4.

  13. Structure-Function Study of Tertiary Amines as Switchable Polarity Solvents

    Energy Technology Data Exchange (ETDEWEB)

    Aaron D. Wilson; Frederick F. Stewart


    A series of tertiary amines have been screened for their function as switchable polarity solvents (SPS). The relative ratios of tertiary amine and carbonate species as well as maximum possible concentration were determined through quantitative 1H and 13C NMR spectroscopy. The viscosities of the polar SPS solutions were measured and ranged from near water in dilute systems through to gel formation at high concentrations. The van't Hoff indices for SPS solutions were measured through freezing point depression studies as a proxy for osmotic pressures. A new form of SPS with an amine : carbonate ratio significantly greater than unity has been identified. Tertiary amines that function as SPS at ambient pressures appear to be limited to molecules with fewer than 12 carbons. The N,N-dimethyl-n-alkylamine structure has been identified as important to the function of an SPS.

  14. Forecasting Tidal Disruption Events for Binary Black Holes with an Outer Tertiary. (United States)

    Seto, Naoki; Kyutoku, Koutarou


    We discuss the gravitational wave (GW) emission and the orbital evolution of a hierarchical triple system composed of an inner binary black hole (BBH) and an outer tertiary. Depending on the kick velocity at the merger, the merged BBH could tidally disrupt the tertiary. Even though the fraction of BBH mergers accompanied by such disruptions is expected to be much smaller than unity, the existence of a tertiary and its basic parameters (e.g., semimajor axis, projected mass) can be examined for more than 10^{3} BBHs with the follow-on missions to the space GW detector LISA. This allows us to efficiently prescreen the targets for the follow-up searches for the tidal disruption events (TDEs). The TDE probability would be significantly higher for triple systems with aligned orbital- and spin-angular momenta, compared with random configurations.

  15. Accessibility of tertiary hospitals in Finland: A comparison of administrative and normative catchment areas. (United States)

    Huotari, Tiina; Antikainen, Harri; Keistinen, Timo; Rusanen, Jarmo


    The determination of an appropriate catchment area for a hospital providing highly specialized (i.e. tertiary) health care is typically a trade-off between ensuring adequate client volumes and maintaining reasonable accessibility for all potential clients. This may pose considerable challenges, especially in sparsely inhabited regions. In Finland, tertiary health care is concentrated in five university hospitals, which provide services in their dedicated catchment areas. This study utilizes Geographic Information Systems (GIS), together with grid-based population data and travel-time estimates, to assess the spatial accessibility of these hospitals. The current geographical configuration of the hospitals is compared to a normative assignment, with and without capacity constraints. The aim is to define optimal catchment areas for tertiary hospitals so that their spatial accessibility is as equal as possible. The results indicate that relatively modest improvements can be achieved in accessibility by using normative assignment to determine catchment areas. Copyright © 2017 Elsevier Ltd. All rights reserved.

  16. Understanding quantum phase transitions

    CERN Document Server

    Carr, Lincoln


    Quantum phase transitions (QPTs) offer wonderful examples of the radical macroscopic effects inherent in quantum physics: phase changes between different forms of matter driven by quantum rather than thermal fluctuations, typically at very low temperatures. QPTs provide new insight into outstanding problems such as high-temperature superconductivity and display fundamental aspects of quantum theory, such as strong correlations and entanglement. Over the last two decades, our understanding of QPTs has increased tremendously due to a plethora of experimental examples, powerful new numerical meth

  17. Sexuality in transit

    DEFF Research Database (Denmark)

    Heinskou, Marie Bruvik


    Through an investigation of a reported rape, this article suggests that we conceive sexuality as a transitional object that changes and transforms depending on space and temporality. This makes sexuality difficult to grasp within specific and stable frames of gender and power analysis. Applying...... such an approach, the complexities of sexual assault, changing power relations and unstable narratives of gender and sexuality are illuminated. The analysis shows that the traditional divide between public and private has dissolved and that public spaces of pop culture are drawn into spaces of intimacy and thereby...

  18. ALICE Transition Radiation Detector

    CERN Multimedia

    Pachmayer, Y


    The Transition Radiation Detector (TRD) is the main electron detector in ALICE. In conduction with the TPC and the ITS, it provides the necessary electron identification capability to study: - Production of light and heavy vector mesons as well as the continuum in the di-electron channel, - Semi leptonic decays of hadrons with open charm and open beauty via the single-electron channel using the displaced vertex information provided by the ITS, - Correlated DD and BB pairs via coincidences of electrons in the central barrel and muons in the forward muon arm, - Jets with high Pτ tracks in one single TRD stack.

  19. Online Community Transition Detection

    DEFF Research Database (Denmark)

    Tan, Biying; Zhu, Feida; Qu, Qiang


    Mining user behavior patterns in social networks is of great importance in user behavior analysis, targeted marketing, churn prediction and other applications. However, less effort has been made to study the evolution of user behavior in social communities. In particular, users join and leave...... communities over time. How to automatically detect the online community transitions of individual users is a research problem of immense practical value yet with great technical challenges. In this paper, we propose an algorithm based on the Minimum Description Length (MDL) principle to trace the evolution...

  20. Semiconducting transition metal oxides (United States)

    Lany, Stephan


    Open shell transition metal oxides are usually described as Mott or charge transfer insulators, which are often viewed as being disparate from semiconductors. Based on the premise that the presence of a correlated gap and semiconductivity are not mutually exclusive, this work reviews electronic structure calculations on the binary 3d oxides, so to distill trends and design principles for semiconducting transition metal oxides. This class of materials possesses the potential for discovery, design, and development of novel functional semiconducting compounds, e.g. for energy applications. In order to place the 3d orbitals and the sp bands into an integrated picture, band structure calculations should treat both contributions on the same footing and, at the same time, account fully for electron correlation in the 3d shell. Fundamentally, this is a rather daunting task for electronic structure calculations, but quasi-particle energy calculations in GW approximation offer a viable approach for band structure predictions in these materials. Compared to conventional semiconductors, the inherent multivalent nature of transition metal cations is more likely to cause undesirable localization of electron or hole carriers. Therefore, a quantitative prediction of the carrier self-trapping energy is essential for the assessing the semiconducting properties and to determine whether the transport mechanism is a band-like large-polaron conduction or a small-polaron hopping conduction. An overview is given for the binary 3d oxides on how the hybridization between the 3d crystal field symmetries with the O-p orbitals of the ligands affects the effective masses and the likelihood of electron and hole self-trapping, identifying those situations where small masses and band-like conduction are more likely to be expected. The review concludes with an illustration of the implications of the increased electronic complexity of transition metal cations on the defect physics and doping, using

  1. Geologic signature of early Tertiary ridge subduction in Alaska (United States)

    Bradley, Dwight C.; Kusky, Timothy M.; Haeussler, Peter J.; Goldfarb, Richard J.; Miller, Marti L.; Dumoulin, Julie A.; Nelson, Steven W.; Karl, Susan M.


    ridge subduction, and changes in the strength of the prism as it was heated and then cooled. In this model, events in the Alaskan interior would have taken place above more distal, deeper parts of the slab window. Extensional (or transtensional) basin subsidence was driven by the two subducting plates that each exerted different tractions on the upper plate. The magmatic lull along the arc presumably marks a time when hydrated lithosphere was not being subducted beneath the arc axis. The absence of a subducting slab also may explain uplift of the Brooks Range and North Slope: Geodynamic models predict that longwavelength uplift of this magnitude will take place far inboard from Andean-type margins when a subducting slab is absent. Precise correlations between events in the accretionary prism and the Alaskan interior are hampered, however, by palinspastic problems. During and since the early Tertiary, margin-parallel strike-slip faulting has offset the near-trench plutonic belt - i.e., the very basis for locating the triple junction and slab window - from its backstop, by an amount that remains controversial.Near-trench magmatism began at 61 Ma at Sanak Island in the west but not until 51 Ma at Baranof Island, 2200 km to the east. A west-to-east age progression suggests migration of a trench-ridge-trench triple junction, which we term the Sanak-Baranof triple junction. Most workers have held that the subducted ridge separated the Kula and Farallon plates. As a possible alternative, we suggest that the ridge may have separated the Kula plate from another oceanic plate to the east, which we have termed the Resurrection plate.

  2. 76 FR 77302 - Federal Transit Administration (United States)


    ... Federal Transit Administration FY 2011 Discretionary Sustainability Funding Opportunity; Transit... Discretionary Bus and Bus Facilities Program AGENCY: Federal Transit Administration (FTA), DOT. ACTION: FTA...'s (DOT) Federal Transit Administration (FTA) announces the selection of Fiscal Year (FY) 2011...

  3. Using aqueous ammonia in hydroaminomethylation reactions: ruthenium-catalyzed synthesis of tertiary amines. (United States)

    Wu, Lipeng; Fleischer, Ivana; Zhang, Min; Liu, Qiang; Franke, Robert; Jackstell, Ralf; Beller, Matthias


    The direct synthesis of tertiary amines from ammonia and olefins is presented. Using a combination of Ru3 (CO)12 and 2-phosphino-substituted imidazole ligand as catalyst system allows for hydroaminomethylation reactions of bulk aliphatic and functionalized olefins. Tertiary amines are obtained in an atom-efficient domino process in moderate to good isolated yields (45-76%) with excellent regioselectivities (n/iso up to 99:1). © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  4. 309 Building transition plan

    Energy Technology Data Exchange (ETDEWEB)

    Graves, C.E.


    The preparation for decontamination and decommissioning (transition) of the 309 Building is projected to be completed by the end of the fiscal year (FY) 1998. The major stabilization and decontamination efforts include the Plutonium Recycle Test Reactor (PRTR), fuel storage and transfer pits, Transfer Waste (TW) tanks and the Ion Exchange Vaults. In addition to stabilizing contaminated areas, equipment, components, records, waste products, etc., will be dispositioned. All nonessential systems, i.e., heating, ventilation, and air conditioning (HVAC), electrical, monitoring, fluids, etc., will be shut down and drained/de-energized. This will allow securing of the process, laboratory, and office areas of the facility. After that, the facility will be operated at a level commensurate with its surveillance needs while awaiting D&D. The implementation costs for FY 1995 through FY 1998 for the transition activities are estimated to be $1,070K, $2,115K, $2,939K, and $4,762K, respectively. Costs include an assumed company overhead of 20% and a 30% out year contingency.

  5. Physical education in transition

    Directory of Open Access Journals (Sweden)

    Đokić Zoran


    Full Text Available The consequences of physical inactivity and insufficient education about its importance are affecting not only the length and the quality of life, but also the economic aspects, such as health care costs caused by the reduction in labour productivity of the Serbian population. Based on previous experiences of countries in transition and those that have well-arranged systems of education, in terms of teaching of physical education programmes, there are possibilities for the necessary reform of the curriculum, adapted to our abilities and needs. These are primarily related to the objectives of education - proper development and creation of positive habits regarding physical activity and health. So far, the reforms of physical education in Serbia have not produced results. The reform should be the transition from education focused on the program to education focused on the ultimate goals (knowledge, skills, and attitudes towards physical activity, i.e. the lifelong values. The objectives and outcomes of teaching physical education should be individualized according to the psychosomatic status and specific dimensions of that status. Therefore, the role and responsibility of teachers change and it is necessary to reform their education. Of course, government is very involved in all of this, at all levels - throughout strategies and campaigns to raise awareness of the nation and its knowledge about the importance of physical activity through all forms of education.

  6. Tiber Personal Rapid Transit

    Directory of Open Access Journals (Sweden)

    Diego Carlo D'agostino


    Full Text Available The project “Tiber Personal Rapid Transit” have been presented by the author at the Rome City Vision Competition1 2010, an ideas competition, which challenges architects, engineers, designers, students and creatives individuals to develop visionary urban proposals with the intention of stimulating and supporting the contemporary city, in this case Rome. The Tiber PRT proposal tries to answer the competition questions with the definition of a provocative idea: a Personal Rapid transit System on the Tiber river banks. The project is located in the central section of the Tiber river and aims at the renewal of the river banks with the insertion of a Personal Rapid Transit infrastructure. The project area include the riverbank of Tiber from Rome Transtevere RFI station to Piazza del Popolo, an area where main touristic and leisure attractions are located. The intervention area is actually no used by the city users and residents and constitute itself a strong barrier in the heart of the historic city.

  7. The Spread of Higher Education around the Globe: A Cross- Country Analysis of Gross Tertiary Education Enrollment, 1999-2005 (United States)

    Yu, Patricia; Delaney, Jennifer A.


    Many nation-states have realized the importance of tertiary education and the world has seen a corollary increase in tertiary education enrollments. Using Berry and Berry's event history model as a framework, this study tests both the internal features of each country and the influence that nation-states have on each other with regard to setting…

  8. Tertiary Students' ICT Self-Efficacy Beliefs and the Factors Affecting Their ICT-Use (United States)

    Turel, Vehbi; Calik, Sinan; Doganer, Adem


    This study looked at tertiary (i.e. undergraduate /a four-year degree) students' information and communication technology (ICT) self-efficacy beliefs and their level in use of certain common programmes at a newly established (i.e. 2007) university in Turkey in the spring of 2012. The study examined the tertiary students' (a) demographic…

  9. Exploring the Relationship between Goal Orientations for Teaching of Tertiary Teachers and Their Teaching Approaches in China (United States)

    Han, Jiying; Yin, Hongbiao; Wang, Wenlan


    This study addresses a paucity of research into teacher motivation in higher education by exploring the relationship between tertiary teachers' goal orientations for teaching and their approaches to teaching in China. A questionnaire gathered responses from 262 Chinese tertiary teachers, and the results showed these teachers reporting higher…

  10. [Tertiary obstetric care: the aims of the planning decree on perinatal care of 2001 have not yet been achieved

    NARCIS (Netherlands)

    Eyck, J. van; Bloemenkamp, K.W.; Bolte, A.C.; Duvekot, J.J.; Heringa, M.P.; Lotgering, F.K.; Oei, S.G.; Offermans, J.P.L.G.; Schaap, A.H.; Sollie-Szarynska, K.M.


    OBJECTIVE: To compare the actual situation in tertiary perinatal care in the Netherlands with the objectives laid down in the 2001 decree on perinatal care by the Dutch Ministry of Health, Welfare and Sport. DESIGN: Descriptive, retrospective. METHOD: Data on tertiary perinatal care, the transfer or

  11. Assessing Strategies for Reducing HIV/AIDS Scourge among Fitness and Recreation Student Clientele of EDO State Tertiary Institutions (United States)

    Okunbor, A. O.; Agwubike, E. O.


    The study assessed strategies for reducing the HIV/AIDS scourge among fitness and recreation student clientele in Edo State tertiary institutions. A total of 192 males and 88 females participated in the study. The participants were drawn from five tertiary institutions and a self-structured questionnaire was used in collecting data for the study.…

  12. Assessing Readiness for Integration of Electronic Learning into Business Education Programmes in Tertiary Institutions in Ebonyi State (United States)

    Nwagwu, Lazarus; Azih, Nonye


    The study was conducted to assess readiness for integration of electronic learning into business education programmes in tertiary institutions in Ebonyi State. Two research questions and two hypotheses guided the study. The population was 37 business education lecturers and 748 Business Education Students in tertiary institutions that offer…

  13. Tertiary centres have improved survival compared to other hospitals in the Copenhagen area after out-of-hospital cardiac arrest

    DEFF Research Database (Denmark)

    Søholm, Helle; Wachtell, Kristian; Nielsen, Søren Loumann


    -term mortality after OHCA at tertiary heart centres and non-tertiary university hospitals. METHODS AND RESULTS: Data from the Copenhagen OHCA registry from June 2002 through December 2010 included a total of 1218 consecutive patients treated by the same mobile emergency care unit (MECU) with either return...

  14. Subsequence Automata with Default Transitions

    DEFF Research Database (Denmark)

    Bille, Philip; Gørtz, Inge Li; Skjoldjensen, Frederik Rye


    of states and transitions) of the subsequence automaton is O(nσ) and that this bound is asymptotically optimal. In this paper, we consider subsequence automata with default transitions, that is, special transitions to be taken only if none of the regular transitions match the current character, and which do...... not consume the current character. We show that with default transitions, much smaller subsequence automata are possible, and provide a full trade-off between the size of the automaton and the delay, i.e., the maximum number of consecutive default transitions followed before consuming a character......(nσ) and delay O(1), thus matching the bound for the standard subsequence automaton construction. The key component of our result is a novel hierarchical automata construction of independent interest....

  15. Subsequence automata with default transitions

    DEFF Research Database (Denmark)

    Bille, Philip; Gørtz, Inge Li; Skjoldjensen, Frederik Rye


    of states and transitions) of the subsequence automaton is O(nσ) and that this bound is asymptotically optimal. In this paper, we consider subsequence automata with default transitions, that is, special transitions to be taken only if none of the regular transitions match the current character, and which do...... not consume the current character. We show that with default transitions, much smaller subsequence automata are possible, and provide a full trade-off between the size of the automaton and the delay, i.e., the maximum number of consecutive default transitions followed before consuming a character......(1), thus matching the bound for the standard subsequence automaton construction. Finally, we generalize the result to multiple strings. The key component of our result is a novel hierarchical automata construction of independent interest....

  16. Transit spectroscopy with GTC

    Directory of Open Access Journals (Sweden)

    Osorio M.R. Zapatero


    Full Text Available Thanks to different ground-based surveys and space missions, nowadays we have a fairly large sample of discovered extra-solar planets to study and, without a doubt, this number will increase in the future. One of the most succesful techniques that allows us to prove the physical properties and atmospheric composition of these exoplanets is transmission spectroscopy. The level of precision that is require to measure these effects provides a technical challenge that is solved by using big telescopes and stable instruments to reach low noise levels. In this article, we will discuss the use of the 10m class telescope GTC to observed planetary transits in spectroscopic mode and some of the results that we are currently obtaining.

  17. Steered transition path sampling. (United States)

    Guttenberg, Nicholas; Dinner, Aaron R; Weare, Jonathan


    We introduce a path sampling method for obtaining statistical properties of an arbitrary stochastic dynamics. The method works by decomposing a trajectory in time, estimating the probability of satisfying a progress constraint, modifying the dynamics based on that probability, and then reweighting to calculate averages. Because the progress constraint can be formulated in terms of occurrences of events within time intervals, the method is particularly well suited for controlling the sampling of currents of dynamic events. We demonstrate the method for calculating transition probabilities in barrier crossing problems and survival probabilities in strongly diffusive systems with absorbing states, which are difficult to treat by shooting. We discuss the relation of the algorithm to other methods.

  18. Strategic planning in transition

    DEFF Research Database (Denmark)

    Olesen, Kristian; Richardson, Tim


    In this paper, we analyse how contested transitions in planning rationalities and spatial logics have shaped the processes and outputs of recent episodes of Danish ‘strategic spatial planning’. The practice of ‘strategic spatial planning’ in Denmark has undergone a concerted reorientation...... style of ‘strategic spatial planning’ with its associated spatial logics is continuously challenged by a persistent regulatory, top-down rationality of ‘strategic spatial planning’, rooted in spatial Keynesianism, which has long characterised the Danish approach. The findings reveal the emergence...... of a particularly Danish approach, retaining strong regulatory aspects. However this approach does not sit easily within the current neoliberal political climate, raising concerns of an emerging crisis of ‘strategic spatial planning’....

  19. Transitions in Secondary Education

    DEFF Research Database (Denmark)

    Larsen, Britt Østergaard; Jensen, Leif; Pilegaard Jensen, Torben


    The purpose of this article is to investigate educational choices and attainment of children who experience social problems during their upbringing. The study explores the extent to which social problems can help explain the gaps in entry and dropout rates in upper secondary education in Denmark...... statistical model of educational progression. By using this method, we parcel educational attainment into a series of transitions and the model is able to control for educational selection and unobserved heterogeneity. We apply counterfactual analyses to allow a formal decomposition of the effects of social...... problems. The results show that social problems during upbringing have a large and significant effect on children's educational outcome and that the indicators of social problems explain about 20–30 per cent of the class differences in the students’ educational outcomes....

  20. Managing a Leader Transition Process (United States)


    GENERAL DOUGLAS MACARTHUR MILITARY LEADERSHIP WRITING COMPETITION SUBMISSION Managing a Leader Transition Process Major Michael B. Siegl 23...DATE 23 FEB 2007 2. REPORT TYPE 3. DATES COVERED 00-00-2007 to 00-00-2007 4. TITLE AND SUBTITLE Managing a Leader Transition Process 5a...1 Managing a Leader Transition Process …one should bear in mind that there is nothing more difficult to execute, nor more dubious of