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Sample records for single port discharges

  1. Single port Billroth I gastrectomy

    Directory of Open Access Journals (Sweden)

    Jeremy R Huddy

    2013-01-01

    Full Text Available Introduction: Experience has allowed increasingly complex procedures to be undertaken by single port surgery. We describe a technique for single port Billroth I gastrectomy with a hand-sewn intracorporeal anastomosis in the resection of a benign tumour diagnosed incidentally on a background of cholelithiasis. Materials and Methods: Single port Billroth I gastrectomy and cholecystectomy was performed using a transumbilical quadport. Flexible tipped camera and straight conventional instruments were used throughout the procedure. The stomach was mobilised including a limited lymph node dissection and resection margins in the proximal antrum and duodenum were divided with a flexible tipped laparoscopic stapler. The lesser curve was reconstructed and an intracorporal hand sewn two layer end-to-end anastomosis was performed using unidirectional barbed sutures. Intraoperative endoscopy confirmed the anastomosis to be patent without leak. Results: Enteral feed was started on the day of surgery, increasing to a full diet by day 6. Analgesic requirements were a patient-controlled analgesia morphine pump for 4 postoperative days and paracetamol for 6 days. There were no postoperative complications and the patient was discharged on the eighth day. Histology confirmed gastric submucosal lipoma. Discussion: As technology improves more complex procedures are possible by single port laparoscopic surgery. In this case, flexible tipped cameras and unidirectional barbed sutures have facilitated an intracorporal hand-sewn two layer end-to-end anastomosis. Experience will allow such techniques to become mainstream.

  2. Single port laparoscopic surgery

    DEFF Research Database (Denmark)

    Springborg, Henrik; Istre, Olav

    2012-01-01

    potential benefits. Theoretically, cosmetic outcomes, postoperative pain and complication rates could be improved with use of single site surgery. This study describes introduction of the method in a private hospital in Denmark, in which 40 patients have been treated for benign gynecologic conditions......LESS, or laparo-endoscopic single site surgery, is a promising new method in minimally invasive surgery. An increasing number of surgical procedures are being performed using this technique, however, its large-scale adoption awaits results of prospective randomized controlled studies confirming...

  3. Toxicity evaluation of ballast water discharged at The Onne Port ...

    African Journals Online (AJOL)

    The discharge of these ballast water poses a major environmental threat to the water quality and Port infrastructures at the Onne Port complex as contaminants may find their way into the food chain/food web and bioaccumulate in the tissues of indigenous biota (microorganisms, crabs, mangrove oysters and fin-fishes).

  4. FIRST SINGLE-PORT LAPAROSCOPIC PANCREATECTOMY IN BRAZIL

    Directory of Open Access Journals (Sweden)

    Marcel Autran Cesar MACHADO

    2013-12-01

    Full Text Available Context Pancreatic surgery is an extremely challenging field, and the management of pancreatic diseases continues to evolve. In the past decade, minimal access surgery is moving towards minimizing the surgical trauma by reducing numbers and size of the port. In the last few years, a novel technique with a single-incision laparoscopic approach has been described for several laparoscopic procedures. Objectives We present a single-port laparoscopic spleen-preserving distal pancreatectomy. To our knowledge, this is the first single-port pancreatic resection in Brazil and Latin America. Methods A 33-year-old woman with neuroendocrine tumor underwent spleen-preserving distal pancreatectomy via single-port approach. A single-incision advanced access platform with gelatin cap, self-retaining sleeve and wound protector was used. Results Operative time was 174 minutes. Blood loss was minimal, and the patient did not receive a transfusion. The recovery was uneventful, and the patient was discharged on postoperative day 4. Conclusions Single-port laparoscopic spleen-preserving distal pancreatectomy is feasible and can be safely performed in specialized centers by skilled laparoscopic surgeons.

  5. Bacteriology of chronic discharging ears in Port Harcourt, Nigeria ...

    African Journals Online (AJOL)

    Methods: Ear swabs of discharging ears aseptically collected from 102 patients of various age groups attending Ear, Nose, and Throat out-patient clinic at University of Port Harcourt Teaching Hospital were cultured for bacterial agents using blood agar, chocolate agar and MacConkey agar. Culture plates were incubated ...

  6. Robotic single-port transumbilical total hysterectomy: a pilot study

    OpenAIRE

    Nam, Eun Ji; Kim, Sang Wun; Lee, Maria; Yim, Ga Won; Paek, Ji Heum; Lee, San Hui; Kim, Sunghoon; Kim, Jae Hoon; Kim, Jae Wook; Kim, Young Tae

    2011-01-01

    Objective To evaluate the feasibility of robotic single-port transumbilical total hysterectomy using a home-made surgical glove port system. Methods We retrospectively reviewed the medical records of patients who underwent robotic single-port transumbilical total hysterectomy between January 2010 and July 2010. All surgical procedures were performed through a single 3-4-cm umbilical incision, with a multi-channel system consisting of a wound retractor, a surgical glove, and two 10/12-mm and t...

  7. Intracorporeal hybrid single port vs conventional laparoscopic appendectomy in children

    Directory of Open Access Journals (Sweden)

    Paul Anthony Karam

    2016-12-01

    Full Text Available Transumbilical laparoscopic assisted appendectomy combines laparoscopic single port dissection with open appendectomy after exteriorization of the appendix through the port site. Compared to the conventional three-port approach, this technique provides an alternative with excellent cosmetic outcome. We developed a safe and effective technique to perform an intracorporeal single port appendectomy, using the same laparoscope employed in the extracorporeal procedure. Retrospective review of 71 consecutively performed intracorporeal single port appendectomies and 30 conventional three-port appendectomies in children 6 to 17 years of age. A straight 10-mm Storz telescope with inbuilt 6 mm working channel is used to dissect the appendix, combined with one port-less 2.3 mm percutaneous grasper. Polymer WECK® hem-o-lock® clips are applied to seal the base of the appendix and the appendiceal vessels. No intraoperative complications were reported with the hybrid intracorporeal single port appendectomy or three-port appendectomy. There were two post-operative complications in the group treated with the single port hybrid technique: one intra-abdominal abscess and one surgical site infection. Groups did not differ in age, weight, and types of appendicitis. Operative times were shorter for the hybrid technique (70 vs 79 minutes but did not differ significantly (P=0.19. This modified technique to a previously described single port extracorporeal appendectomy is easy to master and implement. It provides exposure similar to a three-port laparoscopic appendectomy, while maintaining virtually scarless results and potentially reduces the risk for surgical site infections compared to the extracorporeal technique.

  8. Single port laparoscopic ileocaecal resection for Crohn's disease: a multicentre comparison with multi-port laparoscopy

    NARCIS (Netherlands)

    Carvello, M.; de Groof, E. J.; de Buck van Overstraeten, A.; Sacchi, M.; Wolthuis, A. M.; Buskens, C. J.; D'Hoore, A.; Bemelman, W. A.; Spinelli, A.

    2018-01-01

    AimSingle port (SP) ileocaecal resection (ICR) is an established technique but there are no large studies comparing SP and multi-port (MP) laparoscopic surgery in Crohn's disease (CD). The aim of this study was to compare postoperative pain scores and analgesia requirements after SP and MP

  9. [Clinical retrospective control study of single-port laparoendoscopic and multi-port laparoscopic ovarian cystectomy].

    Science.gov (United States)

    Liu, X; Wen, M K; Liu, H Y; Sun, D W; Lang, J H; Fan, Q B; Shi, H H

    2017-10-25

    Objective: To investigate clinical outcomes of laparoendoscopic single-site ovarian cystectomy compared with traditional multi-port laparoscopic ovarian cystectomy. Methods: Data of 81 patients with ovarian cystectomy from January 2016 to May 2017, the single-site group ( n= 40) and the multi-port group ( n= 41) in Peking Union Medical College Hospital were retrospectively collected. The outcomes of single-site and multi-port groups were analyzed and compared, including: postoperative fever, operation time, blood loss, hemoglobin change, surgical complications, postoperative pain score, postoperative analgesic requirements, body image scale and cosmetic score, length of hospital stay, postoperative total cost. Results: No complication was found in two groups. No difference was found in postoperative fever, blood loss, hemoglobin change, postoperative pain score, length of hospital stay, and total cost between the two groups (all P> 0.05). Operation time was (50±20) minutes in single-site group, and (40±15) minutes in multi-port group; postoperative analgesic requirements was 28%(11/40) in single-site group, and 7%(4/41) in multi-port group; cosmetic score was 22.6±2.6 in single-site group, and 17.3±2.6 in multi-port group; body image scale was 5.7±1.2 in single-site group, and 6.2±1.2 in multi-port group; these four clinical parameters were statistical differences (all P< 0.05). Conculsion: Laparoendoscopic single-site ovarian cystectomy is feasible and safe, although it could't relieve the postoperative pian, it do offer a higher cosmetic satisfaction.

  10. The feasibility of single port laparoscopic cholecystectomy: a pilot study of 20 cases

    OpenAIRE

    Rao, Prashanth P.; Bhagwat, Sonali M.; Rane, Abhay; Rao, Pradeep P.

    2008-01-01

    Introduction. Laparoscopic cholecystectomy has become the gold standard for symptomatic cholelithiasis 1. Traditionally done through four ports, three and two port surgeries have been described. We present a novel technique of single port cholecystectomy using the R-PortR (Advanced Surgical Concepts). Materials and methods. The R-PortR is a Tri-port that allows the ingress of three 5 mm instruments through a single port. Twenty patients with symptomatic cholelithiasis were subjected to single...

  11. Single-port retroperitoneal renal biopsy using standard urological instruments

    Directory of Open Access Journals (Sweden)

    Rodrigo Guerra

    2015-02-01

    Full Text Available Objective To describe the surgical technique and initial experience with a single-port retroperitoneal renal biopsy (SPRRB. Materials and Methods Between January and April 2013, five children underwent SPRRB in our hospital. A single 1.5 cm incision was performed under the 12th rib at mid-axillary line, and an 11 mm trocar was inserted. A nephroscope was used to identify the kidney and dissect the perirenal fat. After lower pole exposure, a laparoscopic biopsy forceps was introduced through the nephroscope working channel to collect a renal tissue sample. Results SPRRB was successfully performed in five children. The mean operative time was 32 minutes, and mean estimated blood loss was less than 10 mL. The hospital stay of all patients was two days because they were discharged in the second postoperative day, after remaining at strict bed rest for 24 hours after the procedure. The average number of glomeruli present in the specimen was 31. Conclusion SPRRB is a simple, safe and reliable alternative to open and videolaparoscopic approaches to surgical renal biopsy.

  12. Single-port Robotic Pelvic Bulky Lymph Node Resection: A Case Report.

    Science.gov (United States)

    Gungor, Mete; Takmaz, Ozguc; Afsar, Selim; Ozbasli, Esra; Gundogan, Savas

    resection 5-mm bipolar fenestrated forceps and a monopolar hook were used. After resection, the bulky lymph nodes were taken out with an endoscopic bag through the assistant port lumen. Additionally, it is important to remember that single-site procedures are not approved by the Food and Drug Administration for lymphadenectomy. A 46-year-old patient diagnosed with advanced-stage cervical cancer (Fédération Internationale de Gynécologie et d'Obstétrique stage IIIB) presented with bilateral pelvic lymph node metastasis revealed by pelvic magnetic resonance imaging. The patient had no history of prior surgery or comorbidity. We decided to perform resection of the pelvic lymph nodes with a robotic-assisted single-site laparoscopic procedure before chemoradiation threapy. Excision of pelvic bulky lymph nodes using robotic-assisted single-port laparoscopy. The total operating time was 170 minutes (from docking to the end of the extubation), the estimated blood loss was 30 mL, and no complications occurred. The patient was discharged the day after surgery. The histopathologic examination revealed squamous cell carcinoma metastasis. Robotic-assisted single-port surgery seems to be an applicable and alternative technique to perform the resection of bulky pelvic lymph nodes in patients with advanced cervical cancer before chemoradiation therapy. Copyright © 2016 AAGL. Published by Elsevier Inc. All rights reserved.

  13. Initial experience with single-port robotic hysterectomy.

    Science.gov (United States)

    Gomes, Mariano Tamura Vieira; Machado, Andréa Maria Novaes; Podgaec, Sérgio; Barison, Gustavo Anderman Silva

    2017-01-01

    This article presents the first series of robotic single-port hysterectomy cases performed at a hospital in Brazil. From November 2014 to October 2016, 11 patients were indicated to undergo, and nine of them were submitted to single-port hysterectomy using da Vinci Single-Site® platform. However, in two patients, due to multiple previous abdominal surgeries, large uterine volume, and/or a uterus with no mobility, a pneumoperitoneum was performed with a Verres needle, and the pelvic cavity was assessed using a 5mm optics endoscope. In these cases, single-port surgery was not recommended; therefore, multiportal robotic access was chosen, and no intercurrent events were reported. Nine single-port cases were operated on by the same surgeon at Hospital Israelita Albert Einstein. Patient data analyzed included age, body mass index, previous surgeries, and clinical diagnosis. Surgical data included operative time, skin incision, report of intraoperative complications, need for conversion to laparotomy, need for transfer to intensive care unit, need for blood transfusion, inadvertent injury to other organs, length of hospital stay, and death. All cases were completed with da Vinci Single-Site® system, with no intercurrent events. Four patients presented with adenomyosis as the surgical indication, two had uterine myoma, one endometrial cancer, one endometrial polyp, and one desquamative inflammatory vaginitis. The mean age of patients was 44 years (range, 40 to 54 years), and body mass index varied between 23.4 and 33.2kg/m2 (mean 26.4). No complications occurred in any of the cases, such as intestinal or bladder injury, bleeding, or the need for a second surgery. All nine procedures were completed with the robotic single-port access, and no patient required a blood transfusion. Although this study merely presented an initial series of patients submitted to robotic single-port surgery, it demonstrated that the method is feasible and safe, suggesting the possible use of

  14. Quantifying the efficiency of a mono-port diffuser in the dispersion of brine discharges

    OpenAIRE

    Loya-Fernández, Angel; Ferrero-Vicente, Luis Miguel; Marco-Méndez, Candela; Martinez-Garcia, Elena; Zubcoff, Jose; Sánchez-Lizaso, José Luis

    2018-01-01

    Reverse-osmosis seawater desalination processes produce a hypersaline effluent waste (brine) which is usually discharged back into the sea via an underwater outfall. Brine discharges can cause environmental problems due to their high salt concentration, but the effects can be minimised by installing a diffuser structure at the end of the pipeline. In May 2010, a mono-port diffuser was installed at the Nuevo Canal de Cartagena desalination plant pipeline (located in Murcia, Spain) in order to ...

  15. Single-port laparoscopic rectal surgery - a systematic review

    DEFF Research Database (Denmark)

    Lolle, Ida; Rosenstock, Steffen; Bulut, Orhan

    2014-01-01

    INTRODUCTION: Single-port laparoscopic surgery (SPLS) for colonic disease has been widely described, whereas data for SPLS rectal resection are sparse. This review aimed to evaluate the feasibility, safety and complication profile of SPLS for rectal diseases. METHODS: A systematic literature search...

  16. Comparison of single-port and conventional laparoscopic abdominoperineal resection

    DEFF Research Database (Denmark)

    Nerup, Nikolaj; Rosenstock, Steffen; Bulut, Orhan

    2018-01-01

    BACKGROUND: Within the last two decades, surgical treatment of colorectal cancer has changed dramatically from large abdominal incisions to minimal access surgery. In the recent years, single port (SP) surgery has spawned from conventional laparoscopic surgery. The purpose of this study was to co......BACKGROUND: Within the last two decades, surgical treatment of colorectal cancer has changed dramatically from large abdominal incisions to minimal access surgery. In the recent years, single port (SP) surgery has spawned from conventional laparoscopic surgery. The purpose of this study...... was to compare conventional with SP laparoscopic abdominoperineal resection (LAPR) for rectal cancer. PATIENTS AND METHODS: This was a single-center non-randomised retrospective comparative study of prospectively collected data on 53 patients who underwent abdominoperineal resection for low rectal cancer; 41...

  17. A novel robotic platform for single-port abdominal surgery

    Science.gov (United States)

    Singh, Satwinder; Cheung, Jo L. K.; Sreedhar, Biji; Hoa, Xuyen Dai; Ng, Hoi Pang; Yeung, Chung Kwong

    2018-03-01

    In this paper, a novel robot-assisted platform for single-port minimally invasive surgery is presented. A miniaturized seven degrees of freedom (dof) fully internalized in-vivo actuated robotic arm is designed. Due to in-vivo actuation, the system has a smaller footprint and can generate 20 N of gripping force. The complete work envelop of the robotic arms is 252 mm × 192 mm × 322 m. With the assistance of the cannula-swivel system, the robotic arms can also be re-positioned and have multi-quadrant reachability without any additional incision. Surgical tasks, such as lifting, gripping suturing and knot tying that are commonly used in a standard surgical procedure, were performed to verify the dexterity of the robotic arms. A single-port trans-abdominal cholecystectomy in a porcine model was successfully performed to further validate its functionality.

  18. Single-port laparoscopic extraperitoneal para-aortic lymphadenectomy.

    Science.gov (United States)

    Iacoponi, Sara; De Santiago, Javier; Diestro, Maria D; Hernandez, Alicia; Zapardiel, Ignacio

    2013-11-01

    The aim of this study was to evaluate the feasibility and the safety of single-port extraperitoneal laparoscopic para-aortic lymphadenectomy for patients with gynecologic cancer. From July 2012 to January 2013, a total of 7 patients with gynecologic cancer underwent a laparoscopic pelvic and para-aortic lymphadenectomy with a single-port device. An extraperitoneal approach was performed for para-aortic lymphadenectomy using only one 2.5-cm incision on the left side. In 6 patients, additionally, hysterectomy and pelvic lymphadenectomy with conventional laparoscopy were performed to complete the treatment. Aortic dissection was complete in all cases without complications. The median age of the patients was 63 years (range, 48-78 years), and the median patient body mass index was 31 kg/m(2) (range, 19-38 kg/m(2)). The median number of para-aortic nodes was 17 (range, 10-25); the median operative time was 204 minutes (range, 120-300 minutes). The median hospital stay was 4 days (range, 3-6 days). No patient encountered postoperative complications. This study demonstrates the feasibility of single-port laparoscopic extraperitoneal para-aortic lymphadenectomy.

  19. Single port intra-gastric full thickness resection: Using "Rotation and Revolution Single Instrument Tie (RRSIT)".

    Science.gov (United States)

    Kim, Ho Goon; Ryu, Seong Yeob; Kim, Dong Yi

    2014-09-01

    Recently, minimize incisions has led to a reduction in the number of ports, and has led to transumbilical single-port surgery. We evaluated the treatment result of single-port, intragastric, full thickness resections for gastric SMTs. In addition, we introduce a novel intracorporeal knot tying method. From August 2010 to March 2011, five patients underwent single-port intragastric, full thickness gastric wedge resections. After performing a gastrostomy, a single port was inserted into the stomach. After full thickness resection, the defect in the gastric wall was sutured by full thickness interrupted suture and a new knot tying technique. The mean operative time was 129 ± 21.0 min and the mean mass size was 3.0±0.6 cm. There were two very low-risk GISTs, 2 leiomyomas, and 1 carcinoid. The post-operative course was uneventful in all patients. The mean hospital stay was 7.2±1.2 days. Single-port intra-gastric full thickness resection with novel intracorporeal knot tying method is feasible and safe. novel intracorporeal knot tying method is a very useful knot tying method. We expect the application of novel intracorporeal knot tying method to be diverse and broad.

  20. From tankers to tissues : tracking the degradation and fate of oil discharges in Port Valdez, Alaska

    International Nuclear Information System (INIS)

    Payne, J.R.; Braddock, J.F.; Bailey, J.; Ka'aihue, L.; Kuckertz, T.H.; Short, J.W.; Driskell, W.B.

    2005-01-01

    An average of 9 million gallons per day of oil-contaminated ballast water off loaded from tankers are treated at the Alyeska Pipeline Service Company Ballast Water Treatment Facility at the terminus of the Trans-Alaska Pipeline in Port Valdez, Alaska. This paper focuses on the results of 2 Prince William Sound Regional Citizens' Advisory Council monitoring programs which detail changes in the chemical composition of treated ballast water as it moves from tankers through the facility and subsequently traces the effluent hydrocarbons into the receiving environment of Port Valdez. The treatment facility involves gravity separation tanks, dissolved air flotation cells and biological treatment tanks. Effluent containing traces of volatile aromatics, including benzene, toluene, ethylbenzene and xylenes, low levels of oil, saturated hydrocarbons and polycyclic aromatic hydrocarbons is being continuously discharged to Port Valdez. Because of the extremely large average flow rate, low concentrations in the effluent can add up to a significant mass discharge. Samples from the facility were collected on 3 occasions. In March 2004, a limited pilot series of composite samples were collected from the effluent and the effluent to Port Valdez from a sampling port in the Fan/Meter Building. Second-round samples were collected from a wider suite of locations. A BIORATE assay study was completed during September 2004 and January 2005 field programs to measure degradation rates. The largest hydrocarbon pollution sources detected in samples from Port Valdez stations are correlated with an oil spill mishap at the terminal in 1994 and a sheen event in 1997. Apart from these events, concentrations from petrogenic sources are usually near or below the detection limits of the analytic methods used. However, on a routine basis, oil signals attributed to the facility effluent are detectable in mussel tissues at both Alyeska Marine Terminal and Gold Creek stations, and in sediments at Alyeska

  1. Single-Incision Versus Three-Port Laparoscopic Appendectomy: Short- and Long-Term Outcomes.

    Science.gov (United States)

    Vellei, Samatha; Borri, Alessandro

    2017-08-01

    To compare the outcome of patients who had undergone single-incision laparoscopic appendectomy (SILA) with others who had undergone three-port laparoscopic appendectomy (3-PORT). Data from all adults with uncomplicated appendicitis treated by laparoscopic appendectomy between June 2012 and December 2015 were prospectively collected. Patients with chronic pain, appendix malignancy, at least two previous laparotomies, and those undergoing concomitant surgery for different condition were excluded from analysis. Postoperative pain was assessed by a visual analog scale (VAS). Patients were reviewed postoperatively at 7 days and 1 month in the outpatient clinic. Late complications were assessed with a telephonic interview. A total of 91 patients were included (46 SILA; 45 3-PORT). There were 16 males and 30 females in the SILA group (mean age = 26.76 ± 10.58 years) and 18 males and 27 females in the 3-PORT group (mean age = 26.84 ± 10.79 years). The mean operative time for SILA was 48.54 ± 12.80 min, for the 3-PORT group the mean operative time was 46.33 ± 15.54 min (P = 0.46). No case required conversion. Mean postoperative hospital length of stay was 1.87 ± 0.69 days for SILA and 2.38 ± 1.11 days for 3-PORT (P = 0.01). VAS value of 3.91 ± 1.96 and mean ketorolac usage of 0.38 ± 0.65 in 3-PORT group and SILA patients reported 3.70 ± 1.58 and 0.39 ± 0.58, respectively (P = 0.91). Our mean follow-up in SILA group was 25.75 ± 10.82 months, for 3-PORT group the mean follow-up was 26.9 ± 11.8 months. Eleven patients missed long-term follow-up. No incisional hernia was found. There is a statistically significant difference in cosmetic evaluation in favor of SILA (P PORT laparoscopic appendectomy, but after SILA procedure discharge was quicker and long-term cosmetic satisfaction was superior.

  2. Identification of ballast water discharge profiles of a port to enable effective ballast water management and environmental studies

    Science.gov (United States)

    David, Matej; Gollasch, Stephan; Penko, Ludvik

    2018-03-01

    Information about the profile of ballast water discharges in a port is one of the basic elements of the decision making process in ballast water risk assessment and management, and supports the evaluation of dimensions and processes of aquatic species invasions with vessels ballast water. In the lack of ballast water reporting, ballast water discharge assessments need to be conducted. In this study we have assessed and compared ballast water discharge profiles of two ports with different maritime traffic and cargo profiles, the Port of Hamburg (Germany) and the Muuga Harbour, Port of Tallinn (Estonia). This study shows methods and approaches which can be used to assess volumes and donor ports of ballast water discharges for a port at the level of each vessel call. These methods and approaches can be applied to any port to support the implementation of feasible and efficient ballast water management measures and to enable environmental studies including long-term accumulation risks of disinfection by-products from ballast water management systems making use of active substances, as well as for discharges of other chemical compounds.

  3. Robotic single port cholecystectomy: current data and future perspectives.

    Science.gov (United States)

    Angelou, Anastasios; Skarmoutsos, Athanasios; Margonis, Georgios A; Moris, Demetrios; Tsigris, Christos; Pikoulis, Emmanouil

    2017-04-01

    Minimally invasive techniques are used more and more frequently. Since conventional laparoscopic approach has been the gold standard, surgeons in their effort to further reduce the invasiveness of conventional laparoscopic cholecystectomy have adopted Single Incision approach. The widespread adoption of robotics has led to the inevitable hybridization of robotic technology with laparoendoscopic single-site surgery (LESS). As a result, employment of the da Vinci surgical system may allow greater surgical maneuverability, improving ergonomics. A review of the English literature was conducted to evaluate all robotic single port cholecystectomy performed till today. Demographic data, operative parameters, postoperative outcomes and materials used for the operation were collected and assessed. A total of 12 studies, including 501 patients were analyzed. Demographics and clinical characteristics of the patients was heterogeneous, but in most studies a mean BMI port cholecystectomy is a safe and feasible alternative to conventional multiport laparoscopic or manual robotic approach. However, current data do not suggest a superiority of robotic SILC over other established methods.

  4. Ramifications of single-port laparoscopic surgery: measuring differences in task performance using simulation.

    Science.gov (United States)

    Conway, Nathan E; Romanelli, John R; Bush, Ron W; Seymour, Neal E

    2014-02-01

    Single-port laparoscopic surgery imposes unique psychomotor challenges. We used surgical simulation to define performance differences between surgeons with and without single-port clinical experience and examined whether a short course of training resulted in improved performance. Study participants were assigned to 3 groups: resident group (RES), experienced laparoscopic surgeons with (SP) and without (LAP) prior single-port laparoscopic experience. Participants performed the Fundamentals of Laparoscopic Surgery precision cutting task on a ProMIS trainer through conventional ports or with articulating instruments via a SILS Port (Covidien, Inc). Two iterations of each method were performed. Then, 6 residents performed 10 successive single-port iterations to assess the effect of practice on task performance. The SP group had faster task times for both laparoscopic (P = .0486) and single-port (P = .0238) methods. The LAP group had longer path lengths for the single-port task than for the laparoscopic task (P = .03). The RES group was slower (P = .0019), with longer path length (P = .0010) but with greater smoothness (P = .0186) on the single-port task than the conventional laparoscopic task. Resident performance task time (P = .005) and smoothness (P = .045) improved with successive iterations. Our data show that surgeons with clinical single-port surgery experience perform a simulated single-port surgical task better than inexperienced single-port surgeons. Furthermore, this performance is comparable to that achieved with conventional laparoscopic techniques. Performance of residents declined dramatically when confronted with the challenges of the single-port task but improved with practice. These results suggest a role for lab-based single-port training.

  5. Robot-assisted single port radical nephrectomy and cholecystectomy: description and technical aspects.

    Science.gov (United States)

    Mota Filho, Francisco Hidelbrando Alves; Sávio, Luis Felipe; Sakata, Rafael Eiji; Ivanovic, Renato Fidelis; da Silva, Marco Antonio Nunes; Maia, Ronaldo; Passerotti, Carlo

    2018-01-01

    Robot-Assisted Single Site Radical Nephrectomy (RASS-RN) has been reported by surgeons in Europe and United States (1-3). To our best knowledge this video presents the first RASS-RN with concomitant cholecystectomy performed in Latin America. A 66 year-old renal transplant male due to chronic renal failure presented with an incidental 1.3cm nodule in the upper pole of the right kidney. In addition, symptomatic gallbladder stones were detected. Patient was placed in modified flank position. Multichannel single port device was placed using Hassan's technique through a 3cm supra-umbilical incision. Standard radical nephrectomy and cholecystectomy were made using na 8.5mm camera, two 5mm robotic arms and an assistant 5mm access. Surgery time and estimated blood loss were 208 minutes and 100mL, respectively. Patient did well and was discharged within less than 48 hours, without complications. Pathology report showed benign renomedullary tumor of interstitial cells and chronic cholecystitis. Robotic technology improves ergonomics, gives better precision and enhances ability to approach complex surgeries. Robot-assisted Single Port aims to reduce the morbidity of multiple trocar placements while maintaining the advantages of robotic surgery (2). Limitations include the use of semi-rigid instruments providing less degree of motion and limited space leading to crash between instruments. On the other hand, it is possible to perform complex and concomitant surgeries with just one incision. RASS-RN seems to be safe and feasible option for selected cases. Studies should be performed to better understand the results using single port technique in Urology. Copyright® by the International Brazilian Journal of Urology.

  6. Robot-assisted single port radical nephrectomy and cholecystectomy: description and technical aspects

    Directory of Open Access Journals (Sweden)

    Francisco Hidelbrando Alves Mota Filho

    Full Text Available ABSTRACT Introduction Robot-Assisted Single Site Radical Nephrectomy (RASS-RN has been reported by surgeons in Europe and United States (1–3. To our best knowledge this video presents the first RASS-RN with concomitant cholecystectomy performed in Latin America. Case A 66 year-old renal transplant male due to chronic renal failure presented with an incidental 1.3cm nodule in the upper pole of the right kidney. In addition, symptomatic gallbladder stones were detected. Results Patient was placed in modified flank position. Multichannel single port device was placed using Hassan's technique through a 3 cm supra-umbilical incision. Standard radical nephrectomy and cholecystectomy were made using an 8.5mm camera, two 5mm robotic arms and an assistant 5mm access. Surgery time and estimated blood loss were 208 minutes and 100mL, respectively. Patient did well and was discharged within less than 48 hours, without complications. Pathology report showed benign renomedullary tumor of interstitial cells and chronic cholecystitis. Discussion Robotic technology improves ergonomics, gives better precision and enhances ability to approach complex surgeries. Robot-assisted Single Port aims to reduce the morbidity of multiple trocar placements while maintaining the advantages of robotic surgery (2. Limitations include the use of semi-rigid instruments providing less degree of motion and limited space leading to crash between instruments. On the other hand, it is possible to perform complex and concomitant surgeries with just one incision. Conclusion RASS-RN seems to be safe and feasible option for selected cases. Studies should be performed to better understand the results using single port technique in Urology.

  7. ECSPECT prospective multicentre registry for single-port laparoscopic colorectal procedures

    DEFF Research Database (Denmark)

    Weiss, Helmut; Zorron, R; Vestweber, K-H

    2017-01-01

    patients undergoing single-port colorectal surgery were enrolled from 11 European centres between March 2010 and March 2014. Data were analysed to assess patient-, technique- and procedure-dependent parameters. A validated sex-adjusted risk chart was developed for prediction of single-port colorectal......BACKGROUND: The international multicentre registry ECSPECT (European Consensus of Single Port Expertise in Colorectal Treatment) was established to evaluate the general feasibility and safety of single-port colorectal surgery with regard to preoperative risk assessment. METHODS: Consecutive...

  8. Single Port Management: Critical Link in the Reception, Staging, Onward Movement, and Integration Process

    National Research Council Canada - National Science Library

    Bush, Ralph

    1998-01-01

    .... The doctrine on single port management is still evolving and not entirely written. With clearly defined responsibilities and accepted doctrine, our ability to support geographic commanders greatly improves...

  9. The voice of Holland: Dutch public and patient′s opinion favours single-port laparoscopy

    Directory of Open Access Journals (Sweden)

    Sofie AF Fransen

    2014-01-01

    Full Text Available Introduction: Single-port laparoscopy is prospected as the future of minimal invasive surgery. It is hypothesised to cause less post operative pain, with a shorter hospitalisation period and improved cosmetic results. Population- and patient-based opinion is important for the adaptation of new techniques. This study aimed to assess the opinion and perception of a healthy population and a patient population on single-port laparoscopy compared with conventional laparoscopy. Materials And Methods: An anonymous 33-item questionnaire, describing conventional and single-port laparoscopy, was given to 101 patients and 104 healthy volunteers. The survey participants (median age 44 years; range 17-82 years were asked questions about their personal situation and their expectations and perceptions of the two different surgical techniques; conventional multi-port laparoscopy and single-port laparoscopy. Results: A total of 72% of the participants had never heard of single-port laparoscopy before. The most important concern in both groups was the risk of surgical complications. When complication risks remain similar, 80% prefers single-port laparoscopy to conventional laparoscopy. When the risk of complications increases from 1% to 10%, 43% of all participants prefer single-port laparoscopy. A total of 70% of the participants are prepared to receive treatment in another hospital if single-port surgery is not performed in their hometown hospital. The preference for single-port approach was higher in the female population. Conclusion: Although cure and safety remain the main concerns, the population and patients group have a favourable perception of single-port surgery. The impact of public opinion and patient perception towards innovative techniques is undeniable. If the safety of the two different procedures is similar, this study shows a positive attitude of both participant groups in favour of single-port laparoscopy. However, solid scientific proof for

  10. The voice of Holland: Dutch public and patient's opinion favours single-port laparoscopy.

    Science.gov (United States)

    Fransen, Sofie Af; Broeders, Epm; Stassen, Lps; Bouvy, Nd

    2014-07-01

    Single-port laparoscopy is prospected as the future of minimal invasive surgery. It is hypothesised to cause less post operative pain, with a shorter hospitalisation period and improved cosmetic results. Population- and patient-based opinion is important for the adaptation of new techniques. This study aimed to assess the opinion and perception of a healthy population and a patient population on single-port laparoscopy compared with conventional laparoscopy. An anonymous 33-item questionnaire, describing conventional and single-port laparoscopy, was given to 101 patients and 104 healthy volunteers. The survey participants (median age 44 years; range 17-82 years) were asked questions about their personal situation and their expectations and perceptions of the two different surgical techniques; conventional multi-port laparoscopy and single-port laparoscopy. A total of 72% of the participants had never heard of single-port laparoscopy before. The most important concern in both groups was the risk of surgical complications. When complication risks remain similar, 80% prefers single-port laparoscopy to conventional laparoscopy. When the risk of complications increases from 1% to 10%, 43% of all participants prefer single-port laparoscopy. A total of 70% of the participants are prepared to receive treatment in another hospital if single-port surgery is not performed in their hometown hospital. The preference for single-port approach was higher in the female population. Although cure and safety remain the main concerns, the population and patients group have a favourable perception of single-port surgery. The impact of public opinion and patient perception towards innovative techniques is undeniable. If the safety of the two different procedures is similar, this study shows a positive attitude of both participant groups in favour of single-port laparoscopy. However, solid scientific proof for the safety and feasibility of this new surgical technique needs to be obtained

  11. Transumbilical laparoendoscopic single-site donor nephrectomy: Without the use of a single port access device

    Directory of Open Access Journals (Sweden)

    Deepak Dubey

    2011-01-01

    Conclusions : Transumbilical LESS-DN can be cost-effectively performed using conventional laparoscopy instruments and without the need for a single port access device. Warm ischemia times with this technique are comparable with that during conventional multiport laparoscopic donor nephrectomy.

  12. Single-port laparoscopic rectal surgery - a systematic review

    DEFF Research Database (Denmark)

    Lolle, Ida; Rosenstock, Steffen; Bulut, Orhan

    2014-01-01

    INTRODUCTION: Single-port laparoscopic surgery (SPLS) for colonic disease has been widely described, whereas data for SPLS rectal resection are sparse. This review aimed to evaluate the feasibility, safety and complication profile of SPLS for rectal diseases. METHODS: A systematic literature search.......5%. Length of hospital stay was 1-16 days. No 30-day mortality was reported. CONCLUSION: Short-term results suggest that SPLS for rectal disease is feasible and safe with an acceptable complication rate when performed by experienced surgeons in selected patients. Oncological safety and the possible benefits......-term oncological outcome and early complication profile. RESULTS: No randomised studies or controlled clinical studies were identified. All studies were case series or case reports. Only five studies included more than ten patients operated with SPLS, comprising a total of 120 patients. These studies formed...

  13. Single-port laparoscopic rectal surgery - a systematic review

    DEFF Research Database (Denmark)

    Lolle, Ida; Rosenstock, Steffen; Bulut, Orhan

    2014-01-01

    .5%. Length of hospital stay was 1-16 days. No 30-day mortality was reported. CONCLUSION: Short-term results suggest that SPLS for rectal disease is feasible and safe with an acceptable complication rate when performed by experienced surgeons in selected patients. Oncological safety and the possible benefits......INTRODUCTION: Single-port laparoscopic surgery (SPLS) for colonic disease has been widely described, whereas data for SPLS rectal resection are sparse. This review aimed to evaluate the feasibility, safety and complication profile of SPLS for rectal diseases. METHODS: A systematic literature search...... of PubMed and Embase was performed in September 2013 according to the PRISMA guidelines. Original reports on the use of SPLS in high and low anterior resection, Hartmann's operation and abdominoperineal resection were included. Outcome measures were intra-operative details and complications, short...

  14. Technique and Short-Term Outcomes of Single-Port Surgery for Rectal Cancer

    DEFF Research Database (Denmark)

    Bulut, O; Aslak, K K; Rosenstock, S

    2013-01-01

    Although conventional laparoscopic surgery is less traumatic than open surgery, it does cause tissue trauma and multiple scar formation. The size and number of ports determine the extent of the trauma. Single-port laparoscopic surgery is assumed to minimize and perhaps eliminate the potential adv...... adverse effects of conventional laparoscopy. The aim of this study was to examine short-term outcomes of single-port laparoscopic surgery for rectal cancer....

  15. Bizarre repetitive discharges recorded with single fibre EMG.

    OpenAIRE

    Trontelj, J; Stålberg, E

    1983-01-01

    Single fibre EMG was used to record bizarre repetitive discharges in patients with chronic denervation or muscle disorders. The low variability of intervals between individual spike components on successive discharges suggests that the bizarre repetitive discharges are based on ephaptic impulse transmission from the muscle fibre starting the discharge (principal pacemaker) to the adjacent muscle fibres. The low variability of the interdischarge intervals is explained by ephaptic reactivation ...

  16. Comparison of the minimally invasive surgical methods of the cholelithiasis treatment: single-port and four-port laparoscopic cholecystectomy

    Directory of Open Access Journals (Sweden)

    V. N Klymenko

    2015-08-01

    Full Text Available Aim and methods. In this paper, a comparative analysis of the results obtained in the performance of single-port laparoscopic surgery (SILS and the traditional four-port laparoscopic cholecystectomy was presented. Average duration of surgery, intra and postoperative complications, duration of pain, hyperthermia, a cosmetic effect were assessed and compared. Results. SILS technique reduces the duration and intensity of post-operative discomfort associated with pain in the wound; achieve early almost complete physical and social adaptation, and return to the normal rhythm of life; get the best cosmetic result.

  17. Subtotal Hysterectomy with Single Port Access Laparoscopy: Gadget or Progress?

    Science.gov (United States)

    Abo, Carole; Roman, Horace

    2016-01-01

    The strengths of surgical laparoscopy compared to laparotomy include shorter hospitalization, reduction in post-operative pain and adhesions, and better cosmetic outcomes. Since 2008, Single Port Access Laparoscopy (SPAL) has been used in order to offer additional cosmetic benefits and to further reduce post-operative morbidity. The aim of this study was to assess the feasibility of a subtotal hysterectomy using SPAL technique, as well as the benefits and the limitations of this technique. Retrospective series of 15 women managed between September 2010 and February 2013 at our university tertiary referral center by subtotal hysterectomy using SPAL technique for benign pathologies. Twelve of the 15 procedures were performed by SPAL alone. Three conversions to classic laparoscopy were required for a large uterus (1 case) or major pelvic adhesions (2 cases). Postoperative complications were a bladder injury, a subumbilical hematoma and transcervical fragmentation of a uterus with a low-grade sarcoma. Mean operative time was 85.4 minutes (50-170). Postoperative hospitalization was of 2 days in average. The rate of patient satisfaction at 16-month follow-up was 9.2/10. Subtotal hysterectomy using SPAL technique is safe and feasible. Successful procedure requires accurate selection of patients taking into account main limitations, such as uterus weight, patient's BMI and abdominal surgical history. Notwithstanding, SPAL technique can be seen as technical progress. Celsius.

  18. Single-Port Total Laparoscopic Hysterectomy in a Patient With Deep Infiltrating Endometriosis.

    Science.gov (United States)

    Şendağ, Fatih; Peker, Nuri; Aydeniz, Elif Ganime; Akdemir, Ali; Gündoğan, Savaş

    2017-02-01

    Foley catheter were placed. Abdominal access was performed following an open Hasson technique with a 2.0- to 2.5-cm vertical umbilical incision and a 4-channel (with two 10-mm and two 5-mm channels) access port was placed into the peritoneal cavity. On pelvic examination, a 6 × 6-cm right ovarian endometrioma adherent to the pelvic sidewall was detected, along with severe adhesions on the left side between the left adnex and the pelvic sidewall. The uterus was normal. The adhesion on the left side was released using a Harmonic scalpel (Ethicon Endosurgery, Cinncinnati, OH). The pelvic sidewall peritoneum was opened, and the ureters were identified and isolated at the pelvic brim and followed toward the true pelvis. The internal iliac artery, uterine and obliterated umbilical artery, and infundibulopelvic ligament were dissected and identified. The paravesical, pararectal, and rectouterine spaces were opened. Deep infiltrating endometriosis implants on the right side located in the uterosacral ligment and pararectal space were dissected and excised. After restoration of pelvic anatomy, hysterectomy and bilateral salpingo-oophorectomy were performed. The vaginal cuff was closed with intracorporeal knots. The patient was discharged on postoperative day 1, and reported no problems at follow-up. Single-port laparoscopic hysterectomy appears to be a safe and feasible option in patients with deep infiltrating endometriosis, especially when performed by well-experienced surgeons. Copyright © 2016 AAGL. Published by Elsevier Inc. All rights reserved.

  19. Single-port laparoscopy in gynecologic oncology: seven years of experience at a single institution.

    Science.gov (United States)

    Moulton, Laura; Jernigan, Amelia M; Carr, Caitlin; Freeman, Lindsey; Escobar, Pedro F; Michener, Chad M

    2017-11-01

    Single-port laparoscopy has gained popularity within minimally invasive gynecologic surgery for its feasibility, cosmetic outcomes, and safety. However, within gynecologic oncology, there are limited data regarding short-term adverse outcomes and long-term hernia risk in patients undergoing single-port laparoscopic surgery. The objective of the study was to describe short-term outcomes and hernia rates in patients after single-port laparoscopy in a gynecologic oncology practice. A retrospective, single-institution study was performed for patients who underwent single-port laparoscopy from 2009 to 2015. A univariate analysis was performed with χ 2 tests and Student t tests; Kaplan-Meier and Cox proportional hazards determined time to hernia development. A total of 898 patients underwent 908 surgeries with a median follow-up of 37.2 months. The mean age and body mass index were 55.7 years and 29.6 kg/m 2 , respectively. The majority were white (87.9%) and American Society of Anesthesiologists class II/III (95.5%). The majority of patients underwent surgery for adnexal masses (36.9%) and endometrial hyperplasia/cancer (37.3%). Most women underwent hysterectomy (62.7%) and removal of 1 or both fallopian tubes and/or ovaries (86%). Rate of adverse outcomes within 30 days, including reoperation (0.1%), intraoperative injury (1.4%), intensive care unit admission (0.4%), venous thromboembolism (0.3%), and blood transfusion, were low (0.8%). The rate of urinary tract infection was 2.8%; higher body mass index (P = .02), longer operative time (P = .02), smoking (P = .01), hysterectomy (P = .01), and cystoscopy (P = .02) increased the risk. The rate of incisional cellulitis was 3.5%. Increased estimated blood loss (P = .03) and endometrial cancer (P = .02) were independent predictors of incisional cellulitis. The rate for surgical readmissions was 3.4%; higher estimated blood loss (P = .03), longer operative time (P = .02), chemotherapy alone (P = .03), and

  20. Technical innovation: Intragastric Single Port Sleeve Gastrectomy (IGSG). A feasibility survival study on porcine model.

    Science.gov (United States)

    Estupinam, Oscar; Oliveira, André Lacerda de Abreu; Antunes, Fernanda; Galvão, Manoel; Phillips, Henrique; Scheffer, Jussara Peters; Rios, Marcelo; Zorron, Ricardo

    2018-01-01

    To perform technically the laparoscopic sleeve gastrectomy (LSG) using a unique Intragastric Single Port (IGSG) in animal swine model, evidencing an effective and safe procedure, optimizing the conventional technique. IGSG was performed in 4 minipigs, using a percutaneous intragastric single port located in the pre-pyloric region. The gastric stapling of the greater curvature started from the pre-pyloric region towards the angle of His by Endo GIA™ system and the specimen was removed through the single port. In the postoperative day 30, the animals were sacrificed and submitted to autopsy. All procedures were performed without conversion, and all survived 30 days. The mean operative time was 42 min. During the perioperative period no complications were observed during invagination and stapling. No postoperative complications occurred. Post-mortem examination showed no leaks or infectious complications. Intragastric Single Port is a feasible procedure that may be a suitable alternative technique of sleeve gastrectomy for the treatment of morbid obesity.

  1. A randomized pilot study on single-port versus conventional laparoscopic rectal surgery

    DEFF Research Database (Denmark)

    Bulut, O; Aslak, K K; Levic, K

    2015-01-01

    BACKGROUND: Potential benefits of single-port laparoscopic surgery may include improved cosmetic results, less postoperative pain, surgical trauma and faster recovery. Results of randomized prospective studies with a focus on single-port rectal surgery have not yet been presented. The aim...... of the present study was to compare single-port and conventional laparoscopic surgery for rectal cancer in terms of short-term outcomes including postoperative pain and trauma-induced changes in certain bioactive substances. METHODS: Patients with non-metastasized rectal cancer were prospectively randomized...... to single-port (n = 20) or conventional laparoscopic rectal surgery (n = 20). Postoperative pain was assessed at rest, at coughing and during mobilization, with a numeric pain ranking score and was recorded at 6 h after the operation and subsequently every morning daily for 4 days. Levels of C...

  2. Single-port access laparoscopic surgery for rectal cancer: initial experience with 10 cases

    DEFF Research Database (Denmark)

    Bulut, Orhan; Nielsen, Claus B; Jespersen, Niels

    2011-01-01

    Single-port access laparoscopic surgery is emerging as a method to improve the morbidity and cosmetic benefits of conventional laparoscopic surgery and minimize the surgical trauma. However, the feasibility of this procedure in rectal surgery has not yet been determined.......Single-port access laparoscopic surgery is emerging as a method to improve the morbidity and cosmetic benefits of conventional laparoscopic surgery and minimize the surgical trauma. However, the feasibility of this procedure in rectal surgery has not yet been determined....

  3. Single-port laparoscopic approach of the left liver: initial experience.

    Science.gov (United States)

    Camps Lasa, Judith; Cugat Andorrà, Esteban; Herrero Fonollosa, Eric; García Domingo, María Isabel; Sánchez Martínez, Raquel; Vargas Pierola, Harold; Rodríguez Campos, Aurora

    2014-11-01

    New technological advances have enabled the development of single-port laparoscopic surgery. This approach began with cholecystectomy and subsequently with other abdominal surgeries. However, few publications on laparoscopic liver surgery have described the use of complete single-port access. We present our initial experience of a single-port laparoscopic hepatectomy. Between May 2012 and December 2013, 5 single-port laparoscopic hepatectomies were performed: one for benign disease and four for colorectal liver metastases. The lesions were approached through a 3-5 cm right supraumbilical incision using a single-port access device. All the lesions were located in hepatic segments II or III. Four left lateral sectorectomies and one left hepatectomy were performed. Median operative time was 135 min. No cases were converted to conventional laparoscopic or open surgery. The oral intake began at 18 h. There were no postoperative complications and no patients required blood transfusion. The median hospital stay was 3 days. The degree of satisfaction was very good in 4 cases and good in one. Patients resumed their normal daily activities at 8 days. Single-port laparoscopic hepatectomy is safe and feasible in selected cases and may reduce surgical aggression and offer better cosmetic results. Comparative studies are needed to determine the real advantages of this approach. Copyright © 2014 AEC. Published by Elsevier Espana. All rights reserved.

  4. Step-wise integration of single-port laparoscopic surgery into routine colorectal surgical practice by use of a surgical glove port.

    Science.gov (United States)

    Hompes, R; Lindsey, I; Jones, O M; Guy, R; Cunningham, C; Mortensen, N J; Cahill, R A

    2011-06-01

    The cost associated with single-port laparoscopic access devices may limit utilisation of single-port laparoscopic surgery by colorectal surgeons. This paper describes a simple and cheap access modality that has facilitated the widespread adoption of single-port technology in our practice both as a stand-alone procedure and as a useful adjunct to traditional multiport techniques. A surgical glove port is constructed by applying a standard glove onto the rim of the wound protector/retractor used during laparoscopic resectional colorectal surgery. To illustrate its usefulness, we present our total experience to date and highlight a selection of patients presenting for a range of elective colorectal surgery procedures. The surgical glove port allowed successful completion of 25 single-port laparoscopic procedures (including laparoscopic adhesiolysis, ileo-rectal anastomosis, right hemicolectomy, total colectomy and low anterior resection) and has been used as an adjunct in over 80 additional multiport procedures (including refashioning of a colorectal anastomosis made after specimen extraction during a standard multiport laparoscopic anterior resection). This simple, efficient device can allow use of single-port laparoscopy in a broader spectrum of patients either in isolation or in combination with multiport surgery than may be otherwise possible for economic reasons. By separating issues of cost from utility, the usefulness of the technical advance inherent within single-port laparoscopy for colorectal surgery can be better appreciated. We endorse the creative innovation inherent in this approach as surgical practice continues to evolve for ever greater patient benefit.

  5. Ergon-trial: ergonomic evaluation of single-port access versus three-port access video-assisted thoracic surgery.

    Science.gov (United States)

    Bertolaccini, Luca; Viti, Andrea; Terzi, Alberto

    2015-10-01

    Single-port access video-assisted thoracic surgery (VATS), a technique progressively developed from the standard three-port approach in minimally invasive surgery, offers ergonomic advantages but also new challenges for the surgeon. We compared the ergonomics of three-port versus single-port VATS. Posture analysis of surgeons was evaluated during 100 consecutive VATS wedge resections (50 triportal vs. 50 uniportal). Technically demanding procedures (major lung resection) were excluded. Operating table height, monitor height, distance and inclination were adjusted according to operator preference. Body posture was assessed by measuring head-trunk axial rotation and head flexion. Perceived physical strain was self-evaluated on the Borg Category Ratio (CR-10) scale. Mental workload was assessed with the National Aeronautics Space Administration-Task Load indeX (NASA-TLX), a multidimensional tool that rates workloads on six scales (mental, physical and temporal demand; effort; performance; frustration). All procedures were completed without complications. Head-trunk axial rotation was significantly reduced and neck flexion significantly improved in uniportal VATS. Viewing direction significantly declined (p = 0.01), body posture as measured on the Borg CR-10 scale was perceived as more stressful and the NASA-TLX score for overall workload was higher (p = 0.04) during triportal VATS. The NASA-TLX score for frustration was higher with uniportal VATS (p = 0.02), but the score for physical demand was higher in triportal VATS (p = 0.006). The surgeon can maintain a more neutral body posture during uniportal VATS by standing straight and facing the monitor with only minimal neck extension/rotation; however, frustration is greater than with triportal VATS.

  6. Bilateral single-port thoracoscopic extended thymectomy for management of thymoma and myasthenia gravis: case report.

    Science.gov (United States)

    Caronia, Francesco Paolo; Fiorelli, Alfonso; Arrigo, Ettore; Trovato, Sebastiano; Santini, Mario; Monte, Attilio Ignazio Lo

    2016-11-22

    Video-assisted thoracoscopy is become a widely accepted approach for the resection of anterior mediastinal masses, including thymoma. The current trend is to reduce the number of ports and minimize the length of incisions to further decrease postoperative pain, chest wall paresthesia, and length of hospitalization. Herein, we reported an extended resection of thymoma in a patient with myasthenia gravis through an uniportal bilateral thoracoscopic approach. A 74 years old woman with myasthenia gravis was referred to our attention for management of a 3.5 cm, well capsulate, thymoma. All laboratory and cardio-pulmonary tests were within normal; thus, she was scheduled for thymoma resection through an uniportal bilateral thoracoscopic approach. Under general anaesthesia and selective intubation, the patient was placed in a 60° right lateral decubitus. A 3 cm skin incision was performed in the fourth right intercostal space and, through that a 30° video-camera and working instruments were inserted without rib spreading. After complete dissection of the thymus and mediastinal fat, the contralateral pleura was opened, and, through that the specimen was pushed into the left pleural cavity. Then, the patient was placed in the left lateral decubitus. Similarly to the right side procedure, a 3-cm incision was performed in the fourth left intercostal space to complete thymic dissection and retrieve the specimen. No intraoperative and post-operative complications were found. The patient was discharged four days later. Pathological examination revealed a type A thymoma (Masaoka stage I). No recurrence was found at 18 months of follow-up CONCLUSIONS: Bilateral single-port thoracoscopy is an available procedure for management of thymoma associated with myasthenia gravis. The less post-operative pain, the reduction of hospital stay and the better esthetic results are all potential advantages of this approach over traditional technique. Obviously, our impression should be

  7. Perioperative and short-term oncological outcomes of single-port surgery for transverse colon cancer.

    Science.gov (United States)

    Tei, Mitsuyoshi; Suzuki, Yozo; Wakasugi, Masaki; Akamatsu, Hiroki

    2017-06-01

    To compare the perioperative and short-term oncological outcomes of patients who underwent single-port surgery (SPS) with those of patients who underwent multi-port surgery (MPS) for transverse colon cancer. The records of consecutive patients who underwent SPS (n = 75) or MPS (n = 41) for transverse colon cancer in our department between January, 2008 and December, 2015 were analyzed retrospectively. Operative times were significantly shorter in the SPS group than in the MPS group (185 vs. 195 min, respectively; P = 0.043). There were no significant differences in operative procedures, blood loss, or extent of lymph node dissection. The rate of postoperative complications was similar in both groups, but the length of hospital stay was significantly shorter in the single-port group than in the multi-port group (8 vs. 11 days, respectively; P transverse colon cancer.

  8. [Use of percutaneous needles in the feasability of single-port laparoscopic cholecystectomy].

    Science.gov (United States)

    Dávila, Fausto; Tsin, Daniel; González, Gloria; Dávila, M Ruth; Lemus, José; Dávila, Ulises

    2014-04-01

    The usefulness of percutaneous needles (PN) to replace traditional assistance ports in mini-invasive techniques with a single port is analyzed and their feasibility for conducting a single port laparoscopic cholecystectomy (SPLC) is demonstrated. A retrospective, linear and descriptive study covering 2,431 patients with a diagnosis of acute and non-acute gallbladder disease has been conducted. The patients underwent a single port laparoscopic cholecystectomy using some type of PNs, replacing the assisting ports used in traditional laparoscopic cholecystechtomy (TLC). Based on the progressive use of PNs-reins (R), hooked needles (HN) and passing suture needles (PSN)-to carry out the SPLC technique, 3 groups have been established: A, B and C. The results were compared using a Student T test, odds ratio and CI and were analyzed by means of the SPSS software v. 13.0. The use of PNs showed an increased feasibility for the laparoscopic procedure, as they were included in the surgical technique. The R were useful when carrying out the SPLC in 78% of the cases and when the HK were added, the results increased to 88%. When using the 3 types (R, HN and PSN), the results increased by 96%. Statistical significance was obtained with these values: chi 2=67.13 and P<.001; odds ratio and 95% CI became significant when comparing the B/C, A/C, and A-B/C groups. The PNs, replacing the assisting ports in laparoscopy, make it possible to attain a feasibility of the process in 96% of the cases. This percentage was similar to what is achieved with the TLC, which places the one port laparoscopy surgery technique as an advantageous and economic alternative. This application of the PNs could be made extensive to other single-port techniques, with a multi-valve platform and natural orifice surgery. Copyright © 2012 AEC. Published by Elsevier Espana. All rights reserved.

  9. Efficient multi-mode to single-mode conversion in a 61 port photonic lantern

    DEFF Research Database (Denmark)

    Noordegraaf, Danny; Skovgaard, Peter M. W.; Dybendahl Maack, Martin

    2010-01-01

    We demonstrate the fabrication of a multi-mode (MM) to 61 port single-mode (SM) splitter or "Photonic Lantern". Low port count Photonic Lanterns were first described by Leon-Saval et al. (2005). These are based on a photonic crystal fiber type design, with air-holes defining the multi-mode fiber ...... of astrophotonics for coupling MM star-light to an ensemble of SM fibers in order to perform fiber Bragg grating based spectral filtering....

  10. Design of a box trainer for objective assessment of technical skills in single-port surgery

    NARCIS (Netherlands)

    Horeman, Tim; Sun, Siyu; Tuijthof, Gabrielle J. M.; Jansen, Frank William; Meijerink, Jeroen W. J. H. J.; Dankelman, Jenny

    2015-01-01

    Laparoscopic single-port (SP) surgery uses only a single entry point for all instruments. The approach of SP has been applied in multiple laparoscopic disciplines owing to its improved cosmetic result. However, in SP surgery, instrument movements are further restricted, resulting in increased

  11. Single-port, single-operator-light endoscopic robot-assisted laparoscopic urology: pilot study in a pig model.

    Science.gov (United States)

    Crouzet, Sebastien; Haber, Georges-Pascal; White, Wesley M; Kamoi, Kazumi; Goel, Raj K; Kaouk, Jihad H

    2010-03-01

    To present our initial operative experience in which single-port-light endoscopic robot-assisted reconstructive and extirpative urological surgery was performed by one surgeon, using a pig model. This pilot study was conducted in male farm pigs to determine the feasibility and safety of single-port, single-surgeon urological surgery. All pigs had a general anaesthetic and were placed in the flank position. A 2-cm umbilical incision was made, through which a single port was placed and pneumoperitoneum obtained. An operative laparoscope was introduced and securely held using a novel low-profile robot under foot and/or voice control. Using articulating instruments, each pig had bilateral reconstructive and extirpative renal surgery. Salient intraoperative and postmortem data were recorded. Results were analysed statistically to determine if outcomes improved with surgeon experience. Five male farm pigs underwent bilateral partial nephrectomy and bilateral pyeloplasty before a completion bilateral radical nephrectomy. There were no intraoperative complications and there was no need for additional ports to be placed. The mean (range) operative duration for partial nephrectomy, pyeloplasty, and nephrectomy were 120 (100-150), 110 (95-130) and 20 (15-30) min, respectively. The mean (range) estimated blood loss for all procedures was 240 (200-280) mL. The preparation time decreased with increasing number of cases (P = 0.002). The combination of a single-port, a robotic endoscope holder and articulated instruments operated by one surgeon is feasible. With a single-port access, the robot allows more room to the surgeon than an assistant.

  12. Multi-port versus single-port cholecystectomy: results of a multi-centre, randomised controlled trial (MUSIC trial).

    Science.gov (United States)

    Arezzo, Alberto; Passera, Roberto; Bullano, Alberto; Mintz, Yoav; Kedar, Asaf; Boni, Luigi; Cassinotti, Elisa; Rosati, Riccardo; Fumagalli Romario, Uberto; Sorrentino, Mario; Brizzolari, Marco; Di Lorenzo, Nicola; Gaspari, Achille Lucio; Andreone, Dario; De Stefani, Elena; Navarra, Giuseppe; Lazzara, Salvatore; Degiuli, Maurizio; Shishin, Kirill; Khatkov, Igor; Kazakov, Ivan; Schrittwieser, Rudolf; Carus, Thomas; Corradi, Alessio; Sitzman, Guenther; Lacy, Antonio; Uranues, Selman; Szold, Amir; Morino, Mario

    2017-07-01

    Single-port laparoscopic surgery as an alternative to conventional laparoscopic cholecystectomy for benign disease has not yet been accepted as a standard procedure. The aim of the multi-port versus single-port cholecystectomy trial was to compare morbidity rates after single-access (SPC) and standard laparoscopy (MPC). This non-inferiority phase 3 trial was conducted at 20 hospital surgical departments in six countries. At each centre, patients were randomly assigned to undergo either SPC or MPC. The primary outcome was overall morbidity within 60 days after surgery. Analysis was by intention to treat. The study was registered with ClinicalTrials.gov (NCT01104727). The study was conducted between April 2011 and May 2015. A total of 600 patients were randomly assigned to receive either SPC (n = 297) or MPC (n = 303) and were eligible for data analysis. Postsurgical complications within 60 days were recorded in 13 patients (4.7 %) in the SPC group and in 16 (6.1 %) in the MPC group (P = 0.468); however, single-access procedures took longer [70 min (range 25-265) vs. 55 min (range 22-185); P < 0.001]. There were no significant differences in hospital length of stay or pain VAS scores between the two groups. An incisional hernia developed within 1 year in six patients in the SPC group and in three in the MPC group (P = 0.331). Patients were more satisfied with aesthetic results after SPC, whereas surgeons rated the aesthetic results higher after MPC. No difference in quality of life scores, as measured by the gastrointestinal quality of life index at 60 days after surgery, was observed between the two groups. In selected patients undergoing cholecystectomy for benign gallbladder disease, SPC is non-inferior to MPC in terms of safety but it entails a longer operative time. Possible concerns about a higher risk of incisional hernia following SPC do not appear to be justified. Patient satisfaction with aesthetic results was greater after SPC than after

  13. A retrospective wound review of standard four-port laparoscopic cholecystectomy: is there need for single-port laparoscopic surgery?

    Science.gov (United States)

    Monkhouse, S J W; Court, E L; Beard, L A; Bunni, J; Burgess, P

    2012-01-01

    This study was designed to assess the satisfaction or otherwise of a proportion of the U.K. population who have undergone standard four-port laparoscopic cholecystectomy within the past 18 months. The results should indicate whether there is potential demand for a new, improved approach to surgery. Patients who underwent laparoscopic cholecystectomy between October 2008 and October 2009 in two geographically separated general hospitals were identified from hospital databases. Notes were reviewed to confirm the technique and lack of conversion to an open procedure. Those who had immediate complications were excluded. A telephone questionnaire was conducted to answer questions related to long-term cosmetic and general satisfaction of the current procedure. Of the patients surveyed, 93% were happy or extremely happy with the current procedure, 48% experienced some wound-related issues (pain, infection), and 65% of those were at the umbilicus (a possible reflection of location and retrieval site for gallbladder). Cosmesis was rated less important than hospital cleanliness and experience of the surgeon. Overall satisfaction was high with the existing technique. The high rate of umbilical wound problems is an issue that will not be eradicated by introduction of single-port laparoscopic surgery.

  14. Novel and safer endoscopic cholecystectomy using only a flexible endoscope via single port.

    Science.gov (United States)

    Mori, Hirohito; Kobayashi, Nobuya; Kobara, Hideki; Nishiyama, Noriko; Fujihara, Shintaro; Chiyo, Taiga; Ayaki, Maki; Nagase, Takashi; Masaki, Tsutomu

    2016-04-07

    To apply the laparoscopic and endoscopic cooperative surgery concept, we investigated whether endoscopic cholecystectomy could be performed more safely and rapidly via only 1 port or not. Two dogs (11 and 13-mo-old female Beagle) were used in this study. Only 1 blunt port was created, and a flexible endoscope with a tip attachment was inserted between the fundus of gallbladder and liver. After local injection of saline to the gallbladder bed, resection of the gallbladder bed from the liver was performed. After complete resection of the gallbladder bed, the gallbladder was pulled up to resect its neck using the Ring-shaped thread technique. The neck of the gallbladder was cut using scissor forceps. Resected gallbladder was retrieved using endoscopic net forceps via a port. The operation times from general anesthetizing with sevoflurane to finishing the closure of the blunt port site were about 50 min and 60 min respectively. The resection times of gallbladder bed were about 15 min and 13 min respectively without liver injury and bleeding at all. Feed were given just after next day of operation, and they had a good appetite. Two dogs are in good health now and no complications for 1 mo after endoscopic cholecystectomy using only a flexible endoscope via one port. We are sure of great feasibility of endoscopic cholecystectomy via single port for human.

  15. Bilateral single-port thoracoscopic extended thymectomy for management of thymoma and myasthenia gravis: case report

    Directory of Open Access Journals (Sweden)

    Francesco Paolo Caronia

    2016-11-01

    Full Text Available Abstract Background Video-assisted thoracoscopy is become a widely accepted approach for the resection of anterior mediastinal masses, including thymoma. The current trend is to reduce the number of ports and minimize the length of incisions to further decrease postoperative pain, chest wall paresthesia, and length of hospitalization. Herein, we reported an extended resection of thymoma in a patient with myasthenia gravis through an uniportal bilateral thoracoscopic approach. Case presentation A 74 years old woman with myasthenia gravis was referred to our attention for management of a 3.5 cm, well capsulate, thymoma. All laboratory and cardio-pulmonary tests were within normal; thus, she was scheduled for thymoma resection through an uniportal bilateral thoracoscopic approach. Under general anaesthesia and selective intubation, the patient was placed in a 60° right lateral decubitus. A 3 cm skin incision was performed in the fourth right intercostal space and, through that a 30° video-camera and working instruments were inserted without rib spreading. After complete dissection of the thymus and mediastinal fat, the contralateral pleura was opened, and, through that the specimen was pushed into the left pleural cavity. Then, the patient was placed in the left lateral decubitus. Similarly to the right side procedure, a 3-cm incision was performed in the fourth left intercostal space to complete thymic dissection and retrieve the specimen. No intraoperative and post-operative complications were found. The patient was discharged four days later. Pathological examination revealed a type A thymoma (Masaoka stage I. No recurrence was found at 18 months of follow-up Conclusions Bilateral single-port thoracoscopy is an available procedure for management of thymoma associated with myasthenia gravis. The less post-operative pain, the reduction of hospital stay and the better esthetic results are all potential advantages of this approach over

  16. Single-port access laparoscopic abdominoperineal resection through the colostomy site: a case report

    DEFF Research Database (Denmark)

    Lauritsen, Morten; Bulut, O

    2012-01-01

    Single-port access (SPA) laparoscopic surgery is emerging as an alternative to conventional laparoscopic and open surgery, although its benefits still have to be determined. We present the case of a 87-year-old woman who underwent abdominoperineal resection (APR) with SPA. The abdominal part...

  17. The short-term outcomes of conventional and single-port laparoscopic surgery for rectal cancer

    DEFF Research Database (Denmark)

    Levic, Katarina; Bulut, Orhan

    2014-01-01

    BACKGROUND: Single-port laparoscopic surgery (SPLS) has evolved as an alternative method to conventional laparoscopic surgery (CLS). The aim of this study is to evaluate the results of SPLS compared to CLS in the treatment of rectal cancer. MATERIAL AND METHODS: Prospectively collected data...

  18. Solo-Surgeon Single-Port Laparoscopic Anterior Resection for Sigmoid Colon Cancer: Comparative Study.

    Science.gov (United States)

    Choi, Byung Jo; Jeong, Won Jun; Kim, Say-June; Lee, Sang Chul

    2018-03-01

    To report our experience with solo-surgeon, single-port laparoscopic anterior resection (solo SPAR) for sigmoid colon cancer. Data from sigmoid colon cancer patients who underwent anterior resections (ARs) using the single-port, solo surgery technique (n = 31) or the conventional single-port laparoscopic technique (n = 45), between January 2011 and July 2016, were retrospectively analyzed. In the solo surgeries, making the transumbilical incision into the peritoneal cavity was facilitated through the use of a self-retaining retractor system. After establishing a single port through the umbilicus, an adjustable mechanical camera holder replaced the human scope assistant. Patient and tumor characteristics and operative, pathologic, and postoperative outcomes were compared. The operative times and estimated blood losses were similar for the patients in both treatment groups. In addition, most of the postoperative variables were comparable between the two groups, including postoperative complications and hospital stays. In the solo SPAR group, comparable lymph nodes were attained, and sufficient proximal and distal cut margins were obtained. The difference in the proximal cut margin significantly favored the solo SPAR, compared with the conventional AR group (P = .000). This study shows that solo SPAR, using a passive camera system, is safe and feasible for use in sigmoid colon cancer surgery, if performed by an experienced laparoscopic surgeon. In addition to reducing the need for a surgical assistant, the oncologic requirements, including adequate margins and sufficient lymph node harvesting, could be fulfilled. Further evaluations, including prospective randomized studies, are warranted.

  19. Single-incision laparoscopic distal gastrectomy for early gastric cancer through a homemade single port access device.

    Science.gov (United States)

    Jiang, Zhi-Wei; Zhang, Shu; Wang, Gang; Zhao, Kun; Liu, Jiang; Ning, Li; Li, Jieshou

    2015-01-01

    We presented a series of single-incision laparoscopic distal gastrectomies for early gastric cancer patients through a type of homemade single port access device and some other conventional laparoscopic instruments. A single-incision laparoscopic distal gastrectomy with D1 + α lymph node dissection was performed on a 46 years old male patient who had an early gastric cancer. This single port access device has facilitated the conventional laparoscopic instruments to accomplish the surgery and we made in only 6 minutes. Total operating time for this surgery was 240 minutes. During the operation, there were about 100 milliliters of blood loss, and 17 lymph-nodes were retrieved. This homemade single port access device shows its superiority in economy and convenience for complex single-incision surgeries. Single-incision laparoscopic distal gastrectomy for early gastric cancer can be conducted by experienced laparoscopic surgeons. Fully take advantage of both SILS and fast track surgery plan can bring to successful surgeries with minimal postoperative pain, quicker mobilization, early recovery of intestinal function, and better cosmesis effect for the patients.

  20. Skin closure methods after single port laparoscopic surgery: a randomized clinical trial.

    Science.gov (United States)

    Park, Sue Yeon; Kim, Kye Hyun; Yuk, Jin-Sung; Ji, Hyun Young; Lee, Jung Hun

    2015-06-01

    To compare postoperative cosmetic outcomes according to different umbilical closure methods after single port laparoscopic surgery (SP-LS). A total of 138 women who were scheduled to receive elective SP-LS were randomized to undergo closure of the umbilical incision with either a subcutaneous suture only without subcuticular skin suture (case group, n=68) or both a subcutaneous suture and subcuticular skin suture (control group, n=70) after fascial closure. At postoperative months 1 and 3, the umbilical scar was evaluated using the Vancouver scar scale (VSS), the patient and observer scar assessment scale, and a visual analog scale (VAS). Overall satisfaction with scar cosmesis and surgery was assessed with the VAS. There was no significant difference in the clinical characteristics and operative data between the groups. The objective and subjective scar assessments and the overall satisfaction with scar cosmesis were not different between the groups. In the control group, four (5.7%) women experienced wound discharge and were treated with conservative treatments and delayed closure. In women who completed the first and second assessments, the changes in the scar assessment and overall satisfaction with the scar according to time after surgery were not different in either group, but the patient scar assessment scale in both groups and the VSS in the case group improved. After SP-LS, the approximation of the fascia and subcutaneous layer seems to be enough for the closure of an umbilical incision. Skin closure with subcuticular sutures did not improve the postoperative cosmetic outcomes and might lead to impaired wound healing. However, large randomized trials with various closure techniques and materials are needed to confirm this finding. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  1. [A Comparative Study of Acute and Chronic Pain between Single Port and Triple Port Video-assisted Thoracic Surgery for Lung Cancer].

    Science.gov (United States)

    Li, Caiwei; Xu, Meiqing; Xu, Guangwen; Xiong, Ran; Wu, Hanran; Xie, Mingran

    2018-04-20

    Through the comparative analysis of the acute and chronic pain postoperative between the single port and triple port video-assisted thoracic surgery to seek the better method which can reduce the incidence of acute and chronic pain in patients with lung cancer. Data of 232 patients who underwent single port -VATS (n=131) or triple port VATS (n=101) for non-small cell lung cancer (NSCLC) on January 1, 2016 to June 30, 2017 in our hospital were analyzed. The clinical and operative data were assessed, numeric rating scale (NRS) was used to evaluate the mean pain score on the 1th, 2th, 3th, 7th, 14th days, 3th months and 6th months postoperative. Both groups were similar in clinical characteristics, there were no perioperative death in two groups. In the 1th, 2th, 7th, 14th days and 3th, 6th months postoperative, the NRS score of the single port group was superior, and the difference was significant compared with the triple port (P0.05). Univariate and multivariate analysis of the occurrence on the chronic pain showed that the operation time, surgical procedure and the 14th NRS score were risk factors for chronic pain (Pport thoracoscopic surgery has an advantage in the incidence of acute and chronic pain in patients with non-small cell lung cancer. Shorter operative time can reduce the occurrence of chronic pain. The 14th day NRS score is a risk factor for chronic pain postoperative.

  2. [Single and reduced port laparoscopic surgery for colorectal cancer: current status and future perspectives].

    Science.gov (United States)

    Li, G X; Li, J M; Wang, Y N; Deng, H J; Mou, T Y

    2017-07-01

    For further maximizing the minimally invasive benefits for colorectal cancer patients, laparoscopic surgeons have been dedicating to improve the surgery through single-port (SILES) or natural orifice transluminal endoscopic surgery (NOTES), which is supported by amount of single-port devices and flexible laparoscopic instruments.Many small sample studies of single institution have suggested that SILES for colorectal cancer has similar oncological outcomes with conventional laparoscopic surgery (CLS), could improve the cosmetic results, and is more minimally invasive than CLS. However, evidences of advantages for SILES are limited, because of there has been only 4 published studies of prospective randomized clinical trial so far. Due to the technical difficulties and long learning curves, SILES and NOTES are relatively hard to be widely promoted. Thus, a balance between minimally invasive pursuit and laparoscopic technical challenge should be sought. In this way, modified SILES and reduced-port laparoscopic surgery have emerged in recent years, which might be minimally invasive solutions with lower technical demanding for laparoscopic colorectal cancer surgeries. Adding a port as the surgeon's dominant operation channel improved the collisions or overlapping of instruments with movement to reduce the technical difficulties. SILS+ 1 is safe and feasible, would be supported by more and more evidences.

  3. INTRODUCING ELECTRONIC MARITIME SINGLE WINDOW BY PORT COMMUNITIES IN THE ADRIATIC REGION

    Directory of Open Access Journals (Sweden)

    Bojan BEŠKOVNIK

    2015-12-01

    Full Text Available The article analysis specific fields of procedures for ship arrival and acceptance in the port, that are predefined by the Directive 2010/65/EU. The directive poses the framework for the Maritime Single Window (MSW development in EU. The article brings original and scientific contribution, as it presents the model for Slovenian MSW (SI MSW. The model covers the need of different groups of stakeholder from the local port community. The proposed MSW architecture unifies communication channels and reduces interfaces in business to port (B2P and business to administration (B2A operational processes for ship formalities. Consequently, the business to customer (B2C relationship benefits from lean operation procedures. The focus is also on information exchange standardization. The paper presents principal benefits of the model implementation in the Slovenian port community. The SI MSW model might be adopted also in other port communities in the Adriatic region or to be used as the main platform for further local improvement.

  4. Single-port unilateral transaxillary totally endoscopic thyroidectomy: A survival animal and cadaver feasibility study

    Directory of Open Access Journals (Sweden)

    Henrique Neubarth Phillips

    2016-01-01

    Full Text Available Background: Single-port unilateral axillary thyroidectomy has great potential to become a valid alternative technique for thyroid surgery. We tested the technique in a study on live animals and cadavers to evaluate the feasibility and reproducibility of the procedure. Materials and Methods: Institutional review board (IRB approval was obtained in our university by the Council of Ethics for the study in surviving animals and cadavers. Subtotal thyroidectomy using unilateral axillary single port was performed in five dogs and five cadavers. Performing incision in the axillary fossa, a disposable single port was inserted. The dissection progressed for creating a subcutaneous tunnel to the subplatysmal region; after opening the platysma muscle and separation of the strap muscles, the thyroid gland was identified. After key anatomical landmarks were identified, the dissection was started at the upper pole towards the bottom, and to the isthmus. Specimens were extracted intact through the tunnel. Clinical and laboratorial observations of the experimental study in a 15-day follow-up and intraoperative data were documented. Results: All surgeries were performed in five animals which survived 15 days without postoperative complications. In the surgeries successfully performed in five cadavers, anatomical landmarks were recognised and intraoperative dissection of recurrent nerves and parathyroid glands was performed. Mean operative time was 64 min (46-85 min in animals and 123 min (110-140 min in cadavers, with a good cosmetic outcome since the incision was situated in the axillary fold. Conclusion: The technique of single-port axillary unilateral thyroidectomy was feasible and reproducible in the cadavers and animal survival study, suggesting the procedure as an alternative to minimally invasive surgery of the neck.

  5. Modified single-port minilaparoscopic extraperitoneal repair for pediatric hydrocele: a single-center experience with 279 surgeries.

    Science.gov (United States)

    Wang, Zhifeng; Xu, Le; Chen, Zhi; Yao, Cong; Su, Zexuan

    2014-12-01

    The purpose of the study is to introduce our experience of a modified single-port minilaparoscopic technique for the treatment of pediatric hydrocele. Between June 2008 and May 2012, 279 boys (115 communicating hydrocele and 164 "non-communicating" hydrocele, diagnosis based on preoperative physical examination and scrotal ultrasound) underwent the modified single-port minilaparoscopic repair in our institution. During surgery, a 3-mm laparoscope was inserted into the abdomen through a mini-umbilical incision. The hydrocele sac orifice was closed by an extraperitoneal purse-string suture placed around the internal ring with an ordinary taper needle and an endoclose needle. Of all the 279 patients, 16 (5.7 %) were found to have a potential patent processus vaginalis (PPV) on the contralateral side. Of the 164 boys diagnosed with "non-communicating" hydrocele preoperatively, 5 (3.0 %) had no PPV identified in laparoscope and the other 159 (97.0 %) had PPV actually. A total of 274 single-port minilaparoscopic procedures were performed, and all cases were successful without serious complications. The mean operative time was 19.5 and 24.8 min for unilateral and bilateral operations, respectively. Postoperative complications were noted in 4 cases, 2 (0.7 %) patients with scrotal edema, 1 (0.4 %) patient experienced an umbilical hernia, and 1 (0.4 %) patient with suture site abscess. During a median follow-up period of 9 months (range 6-24 months), postoperative hydrocele recurrence was seen in 2 patients (0.7 %). This modified single-port minilaparoscopic technique is a safe, effective, and reliable procedure for pediatric hydroceles.

  6. Endoscopic single-port "components separation technique" for postoperative abdominal reconstruction

    Directory of Open Access Journals (Sweden)

    Francesco Rulli

    2012-01-01

    Full Text Available Background: In 1990, Ramirez introduced a new procedure to close abdominal wall hernia (AWH, called "components separation technique (CST". Thanks to endoscopy, surgical repair possibilities have risen, reducing the operative trauma and preserving vascular and neuronal anatomical structures. This report aims to describe a single port endoscopic approach for CST to repair the abdominal wall of a patient undergoing surgery for abdominal aneurysm and already subject to placement of a mesh for AWH. Methods: We performed endoscopic-assisted CST, using a single-port access with a gasless technique. Conclusion: CST is a useful procedure to close large abdominal wall incisional hernia avoiding the use of mesh, notably under contamination, when prosthetic material use is contraindicated. The endoscopic-assisted CST produces same results than the conventional open separation technique and also minimised tissue trauma that ensures blood supply and prevents postoperative wounds complications. The described single port method was found to be safe and effective to close large midline abdominal hernias when a primary open or laparoscopic closure is not feasible or when patients have been previously treated with abdominal meshes.

  7. [Transumbilical single-port laparoscopy combined with improved double hernia needles for pediatric hydrocele].

    Science.gov (United States)

    Qi, Jin-Chun; Xue, Wen-Yong; Li, Suo-Lin; Lu, Bao-Sai; Jia, Jiang-Hua; Zhang, Yan-Ping; DU, Lei; Li, Meng; Li, Wei

    2016-09-01

    To compare the clinical effect of transumbilical single-port laparoscopy combined with improved double hernia needles with that of traditional open surgery in the treatment of hydrocele in children. We retrospectively analyzed 35 cases (54 sides) of pediatric hydrocele treated by transumbilical single-port laparoscopy combined with improved double hernia needles (laparoscopy group). We recorded the operation time, intraoperative blood loss, hospital stay, scrotal edema, and postoperative complications and compared them with those of another 46 cases (58 sides) treated by traditional open surgery (open surgery group) during the same period. The laparoscopy group showed a significantly shorter operation time, less intraoperative blood loss, milder scrotal edema, and fewer hospital days than the open surgery group (all P0.05). Subcutaneous emphysema developed in 2 patients in the laparoscopy group, which disappeared after 1-3 days of oxygen inhalation and other symptomatic treatment, while scrotal hematoma occurred in 1 and incision fat liquefaction in 2 patients in the open surgery group 3 days postoperatively, which healed after debridement suture and daily dressing, respectively. The patients were followed up for 3-6 months, which revealed no late complications in the laparoscopy group but 1 case of unilateral recurrence and 2 cases of offside recurrence in the open surgery group, all cured by laparoscopic internal ring ligation. Transumbilical single-port laparoscopy combined with improved double hernia needles is superior to traditional open surgery for the treatment of pediatric hydrocele and therefore deserves clinical generalization.

  8. Single port laparoscopic colorectal surgery in debilitated patients and in the urgent setting.

    LENUS (Irish Health Repository)

    Moftah, M

    2012-09-01

    Single port laparoscopy is a relatively new niche in the expanding spectrum of minimal access surgery for colorectal disease. To date the published experience has predominantly focused on planned operations for neoplasia in the elective setting. It seems probable however that the benefits of minimal abdominal wounding will be greatest among those patients with the highest risk of impaired wound healing. Combining this with the impression of improved cosmesis suggests that (the mostly young) patients with inflammatory bowel disease needing urgent operation are the most likely to appreciate and benefit from the extraoperative effort. The extension of single port surgery to the acute setting and for debilitated individuals is therefore a likely next step advance in broadening the category of patients for whom it represents a real benefit and ultimately aid in focusing by selection the subgroups for whom this technique is best suited and most appropriate. We describe here our approach (including routine use of a surgical glove port) to patients presenting for urgent colorectal operation for benign disease. As provision of specialized approaches regardless of timing or mode of presentation is a defining component of any specialty service, this concept will soon be more fully elucidated and established.

  9. Laparoscopic single port surgery in children using Triport: our early experience.

    Science.gov (United States)

    de Armas, Ismael A Salas; Garcia, Isabella; Pimpalwar, Ashwin

    2011-09-01

    Laparoscopy has become the gold standard technique for appendectomy and cholecystectomy. With the emergence of newer laparoscopic instruments which are roticulating and provide 7 degrees of freedom it is now possible to perform these operations through a single umbilical incision rather than the standard 3-4 incisions and thus lead to more desirable cosmetic results and less postoperative pain. The newer reticulating telescopes provide excellent exposure of the operating field and allow the operations to proceed routinely. Recently, ports [Triports (Olympus surgery)/SILS ports] especially designed for single incision laparoscopic surgery (SILS) have been developed. We herein describe our experience with laparoscopic single port appendectomies and cholecystectomies in children using the Triport. This is a retrospective cohort study of children who underwent single incision laparoscopic surgery between May 2009 and August 2010 at Texas Children's Hospital and Ben Taub General Hospital in Houston Texas by a single surgeon. Charts were reviewed for demographics, type of procedure, operative time, early or late complications, outcome and cosmetic results. Fifty-four patients underwent SILS. A total of 50 appendectomies (early or perforated) and 4 cholecystectomies were performed using this new minimally invasive approach. The average operative time for SILS/LESS appendectomy was 54 min with a range between 25 and 205 min, while operative time for SILS cholecystectomy was 156 min with a range of 75-196 min. Only small percentage (4%) of appendectomies (mostly complicated) were converted to standard laparoscopy, but none were converted to open procedure. All patients were followed up in the clinic after 3-4 weeks. No complications were noted and all patients had excellent cosmetic results. Parents were extremely satisfied with the cosmetic results. SILS/LESS is a safe, minimally invasive approach for appendectomy and cholecystectomy in children. This new approach is

  10. Videoendoscopic Single-Port Nipple-Sparing Mastectomy and Immediate Reconstruction

    Science.gov (United States)

    Ozden, Burcu Celet; Agcaoglu, Orhan; Kecer, Mustafa; Ozmen, Vahit; Muslumanoglu, Mahmut; Igci, Abdullah

    2014-01-01

    Abstract Purpose: Single-incision videoendoscopic surgery has recently become popular as a result of the ongoing search for less invasive procedures. The aim of this study was to evaluate the safety and efficacy of endoscopic single-port nipple-sparing mastectomy, axillary lymphadenectomy, and immediate reconstruction in patients with breast cancer. Patients and Methods: From May 14, 2012 through January 23, 2013, 10 patients underwent videoendoscopic single-port nipple-sparing mastectomy and axillary dissection via a single, limited incision and immediate prosthetic reconstruction. Patient charts were reviewed, and demographic data, operative time, complications and pathology results were analyzed. Results: In all patients, videoendoscopic surgery was performed successfully. Of 10 patients, 7 were diagnosed as having invasive ductal carcinoma, 2 had a ductal carcinoma in situ, and 1 underwent bilateral prophylactic mastectomy. The weight of the resected gland was 300–650 g, with a mean of 420 g. There were no operative complications, and the mean operative time was 250 minutes (range, 160–330 minutes). One-stage reconstruction with implants was performed on 4 patients, whereas expanders were placed in the remaining 6. Surgical margins of all cases were pathologically negative, and there were no recurrences observed during the early follow-up period. Conclusions: Videoendoscopic single-port nipple-sparing mastectomy is technically feasible even in larger breasts, enabling immediate reconstruction with good cosmetic outcomes. However, further studies with larger clinical series and long-term follow-up are required to compare the safety and efficacy of the technique with those of the standard nipple-sparing mastectomy. PMID:24401140

  11. Assessment of treatment options for rectosigmoid cancer: single-incision plus one port laparoscopic surgery, single-incision laparoscopic surgery, and conventional laparoscopic surgery.

    Science.gov (United States)

    Liu, Ruoyan; Wang, Yanan; Zhang, Ze; Li, Tingting; Liu, Hao; Zhao, Liying; Deng, Haijun; Li, Guoxin

    2017-06-01

    The advantages of reduced-port laparoscopic surgery (RPLS) for rectosigmoid cancer treatment have been disputed. This study evaluated the outcomes of RPLS compared to conventional laparoscopic surgery (CLS) for rectosigmoid cancer. Data from 211 patients who underwent a selective sigmoidectomy or anterior resection from August 2011 to June 2014 at a single institution were collected and analyzed via propensity score matching. Operative outcomes, inflammatory responses, pain intensity, oncologic outcomes, quality of life, and cosmetic results were compared between groups. After matching, 96 patients (48 CLS and 48 RPLS) were evaluated. Sixteen RPLS cases underwent single-incision laparoscopic surgery (SILS), and 32 underwent single-incision plus one port laparoscopic surgery (SILS + 1). Baseline clinical characteristics were comparable between the RPLS and the CLS groups. Morbidity, pathologic outcomes, and 3-year disease-free survival and overall survival rates were also comparable between the 2 groups. Compared with the CLS group, the RPLS group had a shorter total incision length (p time to liquid diet (p = 0.027), ambulation (p = 0.026), and discharge (p times, C-reactive protein levels at 24 h and 96 h, and interleukin-6 levels at 24 h postoperatively were significantly lower in the SILS + 1 group than those in the CLS and SILS groups (p cosmetic results, and both groups showed better results than the CLS group (p < 0.001). RPLS for rectosigmoid cancer is feasible, with short-term safety and long-term oncological safety comparable to that of CLS. Better cosmesis and accelerated recovery can be expected. SILS + 1 is a better choice than CLS or SILS for rectosigmoid cancer because it minimizes invasiveness and reduces technical difficulties.

  12. Single port laparoscopic repair of paediatric inguinal hernias: Our experience at a secondary care centre

    Directory of Open Access Journals (Sweden)

    Ameet Kumar

    2013-01-01

    Full Text Available Background: Congenital inguinal hernias are a common paediatric surgical problem and herniotomy through a groin incision is the gold standard. Over the last 2 decades minimally invasive surgery (MIS has challenged this conventional surgery. Over a period, MIS techniques have evolved to making it more minimally invasive - from 3 to 2 and now single port technique. All studies using single port technique are from tertiary care centres. We used a modification of the technique described by Ozgediz et al. and reviewed the clinical outcome of this novel procedure and put forth our experience at a secondary level hospital. Materials and Methods: Prospective review of 37 hernias in 31 children (29 male and 2 female (8 months - 13 years performed laparoscopically by a single surgeon at a single centre between September 2007 and June 2010. Under laparoscopic guidance, the internal ring was encircled extraperitoneally using a 2-0 non-absorbable suture and knotted extraperitoneally. Data analyzed included operating time, ease of procedure, occult patent processus vaginalis (PPV, complications, and cosmesis. Results: Sixteen right (52%, 14 left (45% and 1 bilateral hernia (3% were repaired. Five unilateral hernias (16.66%, all left, had a contralateral PPV that was repaired (P = 0.033. Mean operative time for a unilateral and bilateral repair were 13.20 (8-25 and 20.66 min (17 -27 min respectively. Only one of the repairs (2.7% recurred and another had a post operative hydrocoele (2.7%. One case (2.7% needed an additional port placement due to inability to reduce the contents of hernia completely. There were no stitch abscess/granulomas, obvious spermatic cord injuries, testicular atrophy, or nerve injuries. Conclusion: Single port laparoscopic inguinal hernia repair can be safely done in the paediatric population. It permits extension of benefits of minimal access surgery to patients being managed at secondary level hospitals with limited resources. The

  13. Multi-mode to single-mode conversion in a 61 port photonic lantern

    DEFF Research Database (Denmark)

    Noordegraaf, Danny; Skovgaard, Peter M.W.; Maack, Martin D.

    2010-01-01

    Efficient multi-mode (MM) to single-mode (SM) conversion in a 61 port splitter or “Photonic Lantern” is demonstrated. The coupling loss from a 100 µm core diameter MM section to an ensemble of 61 SM fibers and back to another 100 µm core MM section is measured to be as low as 0.76 dB. This demons......B. This demonstration shows the feasibility of using the Photonic Lanterns within the field of astrophotonics for coupling MM star-light to an ensemble of SM fibers in order to perform fiber Bragg grating based spectral filtering."...

  14. Robot-assisted posterior retroperitoneoscopic adrenalectomy using single-port access: technical feasibility and preliminary results.

    Science.gov (United States)

    Park, Jae Hyun; Kim, Soo Young; Lee, Cho-Rok; Park, Seulkee; Jeong, Jun Soo; Kang, Sang-Wook; Jeong, Jong Ju; Nam, Kee-Hyun; Chung, Woong Youn; Park, Cheong Soo

    2013-08-01

    Posterior retroperitoneoscopic adrenalectomy (PRA) has several benefits compared with transperitoneal adrenalectomy in that it is safe and has a short learning curve. In addition, it provides direct short access to the target organ, prevents irritation to the intraperitoneal space, and does not require retraction of adjacent organs.1 (-) 3 We have performed several cases of robot-assisted PRA using single-port access for small adrenal tumors. This multimedia article introduces the detailed methods and preliminary results of this procedure. Five patients underwent single-port robot-assisted PRA between March 2010 and June 2011 at our institution. During the procedure, patients were placed in a prone jackknife position with their hip joints bent at a right angle (Fig. 1). A 3 cm transverse skin incision was made just below the lowest tip of the 12th rib (Fig. 2), and the Glove port (Nelis, Kyung-gi, Korea) was placed through the skin incision while maintaining pneumoretroperitoneum (Fig. 3). CO2 was then insufflated to a pressure of 18 mm Hg to create an adequate working space. A 10 mm robotic camera with a 30-degree up view was placed at the center of the incision through the most cephalic portion of the Glove port. A Maryland dissector or Prograsp forceps (Intuitive Surgical, Inc., Sunnyvale, CA) was placed on the medial side of the incision, and Harmonic curved shears (Intuitive Surgical) were placed on the lateral side of the incision (Fig. 4). Using the Maryland dissector and the harmonic curved shears, the Gerota fascia is opened, perinephric fat is dissected, and the kidney upper pole is mobilized to expose the adrenal gland (Fig. 5). Gland dissection starts with lower margin detachment from the upper kidney pole in a lateral to medial direction (Fig. 6). After dissecting the adrenal gland from surrounding adipose tissue and medial isolation of the adrenal central vein, the vessel is ligated with a 5 mm hemolock clip (Fig. 7). Patient

  15. Comparison of Inversion (“flipping”) Rates Among Different Port Designs: A Single-Center Experience

    Energy Technology Data Exchange (ETDEWEB)

    Etezadi, Vahid, E-mail: vahid.etezadi@umm.edu; Trerotola, Scott O., E-mail: streroto@uphs.upenn.edu [University of Pennsylvania Medical Center, Division of Interventional Radiology, Department of Radiology (United States)

    2017-04-15

    PurposeTo compare incidence of port inversion among different types of implantable venous access devices.Materials and Methods Records of patients who underwent imaging-guided subcutaneous port placement without port fixation between July 2001 and April 2015 were reviewed with use of a quality assurance database. 1930 patients with complete follow-up (death or explant) were included in the study. Collected data included date and indication for port placement, port type, venous access site, immediate and long-term complications, indication for removal, and total number of catheter days. BMI of patients with inverted ports was also calculated.Results Port inversion within the pocket was observed in 18 patients (0.9%) including 7/82 (9%) of Dignity ports, 4/126 (3%) of Vaxcel plastic arm ports, 3/142 (2%) of Smartports, 2/100 (2%) of Powerports, 1/14 (7%) of Vaccess ports, and 1/1421 (0.07%) of Vortex LP ports. Among these designs, the inversion rate was significantly lower in Vortex LP ports (0.1%) (P < 0.05). There was a trend toward higher inversion rate of Dignity ports, which have a rectangular design with a relatively narrow base. Mean dwell in inverted ports was 114 days (7–580).Conclusion The incidence of port inversion without suture fixation of the port base to the pocket is extremely low. The present study shows differences in inversion incidence based on port design.Level of Evidence: Case Series, Level IV.

  16. Cosmetic outcomes of laparoendoscopic single-site hysterectomy compared with multi-port surgery: randomized controlled trial.

    Science.gov (United States)

    Song, Taejong; Cho, Juhee; Kim, Tae-Joong; Kim, Im-Ryung; Hahm, Tae Soo; Kim, Byoung-Gie; Bae, Duk-Soo

    2013-01-01

    To compare cosmetic satisfaction with laparoendoscopic single-site surgery (LESS) compared with multi-port surgery. Randomized controlled trial (Canadian Task Force classification I). University hospital. Twenty women who underwent laparoscopically-assisted vaginal hysterectomy (LAVH) via LESS or multi-port surgery. Laparoendoscopic single-site surgery or multi-port surgery. Cosmetic satisfaction was assessed using the Body Image Questionnaire at baseline and at 1, 4, and 24 weeks after surgery. Of the 20 LESS procedures, 1 was converted to multi-port surgery because of severe adhesions, and 1 woman assigned to undergo multi-port surgery was lost to follow-up. The 2 surgery groups did not differ in clinical demographic data and surgical results or postoperative pain scores at 12, 24, and 36 hours. Compared with the multi-port group, the LESS group reported significantly higher cosmetic satisfaction at 1, 4, and 24 weeks after surgery (p surgery, LESS is not only a feasible approach with comparable operative outcomes but also has an advantage insofar as cosmetic outcome. Copyright © 2013 AAGL. Published by Elsevier Inc. All rights reserved.

  17. Direction of Arrival Estimation with a Novel Single-Port Smart Antenna

    Directory of Open Access Journals (Sweden)

    Chen Sun

    2004-08-01

    Full Text Available A novel direction of arrival (DOA estimation technique that uses the conventional multiple-signal classification (MUSIC algorithm with periodic signals is applied to a single-port smart antenna. Results show that the proposed method gives a high-resolution (1 degree DOA estimation in an uncorrelated signal environment. The novelty lies in that the MUSIC algorithm is applied to a simplified antenna configuration. Only 1 analogue-to-digital converter (ADC is used in this antenna, which features low power consumption, low cost, and ease of fabrication. Modifications to the conventional MUSIC algorithm do not bring much additional complexity. The proposed technique is also free from the negative influence by the mutual coupling among antenna elements. Therefore, it offers an economical way to extensively implement smart antennas into the existing wireless mobile communications systems, especially at the power consumption limited mobile terminals such as laptops in wireless networks.

  18. COMPARATIVE ANALYSIS OF IMMUNOLOGICAL PROFILES IN WOMEN UNDERGOING CONVENTIONAL AND SINGLE-PORT LAPAROSCOPIC CHOLECYSTECTOMY.

    Science.gov (United States)

    Borges, Marisa de Carvalho; Takeuti, Tharsus Dias; Terra, Guilherme Azevedo; Ribeiro, Betânia Maria; Rodrigues-Júnior, Virmondes; Crema, Eduardo

    2016-01-01

    Surgical trauma triggers an important postoperative stress response characterized by significantly elevated levels of cytokines, an event that can favor the emergence of immune disorders which lead to disturbances in the patient's body defense. The magnitude of postoperative stress is related to the degree of surgical trauma. To evaluate the expression of pro-inflammatory (TNF-α, IFN-γ, IL-1β, and IL-17) and anti-inflammatory (IL-4) cytokines in patients submitted to conventional and single-port laparoscopic cholecystectomy before and 24 h after surgery. Forty women with symptomatic cholelithiasis, ranging in age from 18 to 70 years, participated in the study. The patients were divided into two groups: 21 submitted to conventional laparoscopic cholecystectomy and 19 to single-port laparoscopic cholecystectomy. Evaluation of the immune response showed no significant difference in IFN-γ and IL-1β levels between the groups or time points analyzed. With respect to TNF-α and IL-4, serum levels below the detection limit (10 pg/ml) were observed in the two groups and at the time points analyzed. Significantly higher postoperative expression of IL-17A was detected in patients submitted to single-port laparoscopic cholecystectomy when compared to preoperative levels (p=0.0094). Significant postoperative expression of IL-17 was observed in the group submitted to single-port laparoscopic cholecystectomy when compared to preoperative levels, indicating that surgical stress in this group was higher compared to the conventional laparoscopic cholecystectomy. O trauma cirúrgico induz resposta de estresse pós-operatório significativo, evidenciado pelos níveis elevados de citocinas, podendo favorecer o surgimento de distúrbios imunológicos. A magnitude de estresse está relacionada ao grau do trauma cirúrgico. Avaliar a expressão das citocinas pró-inflamatórias (TNF-α, IFN-γ, IL-1β, IL-17) e da anti-inflamatória (IL-4) no pré e pós-operatório de pacientes

  19. Stress analysis of single port (ISB) jumper connectors for 2-, 3-, and 4-in. sizes

    International Nuclear Information System (INIS)

    Islam, M.A.; Julyk, J.L.; Weiner, E.O.

    1995-01-01

    Jumper connectors are used in the Hanford site for remotely connecting jumper pipe lines in the radioactive zones. The jumper pipes are used for transporting radioactive fluids and hazardous chemicals. This report evaluates the adequacy and the integrity of the 2-, 3-, and 4-in. single-port integral seal block (ISB) jumper connector assemblies, as well as the three-way 2-in. configuration. The evaluation considers limiting forces from the piping to the nozzle. A stress evaluation of the jumper components (hook, hook pin, operating screw, nozzle and nozzle flange, and block) under operational (pressure, thermal, dead weight, and axial torquing of the jumper) and seismic loading is addressed in the report

  20. Single port laparoscopic long-term tube gastrostomy in Göttingen minipigs

    DEFF Research Database (Denmark)

    Birck, Malene Muusfeldt; Vegge, Andreas; Moesgaard, S G

    2015-01-01

    Oral dosing by gavage is often used to test compounds in minipigs. This method is also used for certain nutritional studies that require exact dosing. This procedure may be stressful for the animal and requires the assistance of more than one technician. We investigated whether a gastrostomy tube...... it was evident that the catheter had entered the stomach in the fundus region in 11/12 of the animals. In one animal the catheter had entered the antrum region. None of the animals developed leakage or clinically detectable reactions to the gastrostomy tube. Histopathologically, only discrete changes were...... observed. Single port laparoscopic tube gastrostomy with a locking pigtail catheter is safe, simple and reliable and is an appropriate alternative to, for example, percutaneous endoscopic gastrostomy, when long-term enteral delivery of pharmacological or nutritional compounds is needed. The use...

  1. Stress analysis of single port (ISB) jumper connectors for 2-, 3-, and 4-in. sizes

    Energy Technology Data Exchange (ETDEWEB)

    Islam, M A; Julyk, J L; Weiner, E O [ICF Kaiser Hanford Co., Richland, WA (United States)

    1995-05-26

    Jumper connectors are used in the Hanford site for remotely connecting jumper pipe lines in the radioactive zones. The jumper pipes are used for transporting radioactive fluids and hazardous chemicals. This report evaluates the adequacy and the integrity of the 2-, 3-, and 4-in. single-port integral seal block (ISB) jumper connector assemblies, as well as the three-way 2-in. configuration. The evaluation considers limiting forces from the piping to the nozzle. A stress evaluation of the jumper components (hook, hook pin, operating screw, nozzle and nozzle flange, and block) under operational (pressure, thermal, dead weight, and axial torquing of the jumper) and seismic loading is addressed in the report.

  2. Three-Dimensional Single-Port Labyrinthine Acoustic Metamaterial: Perfect Absorption with Large Bandwidth and Tunability

    Science.gov (United States)

    Zhang, Chi; Hu, Xinhua

    2016-12-01

    Metamaterials are engineered materials which exhibit fascinating properties unreachable by traditional materials. Here, we report on the design, fabrication, and experimental characterization of a three-dimensional single-port labyrinthine acoustic metamaterial. By using curled perforations with one end closed and with appropriate loss inside, the metamaterial can perfectly absorb airborne sounds in a low-frequency band. Both the position and the relative width of the band can be tuned flexibly. A trade-off is uncovered between the relative absorption bandwidth and thickness of the metamaterial. When the relative absorption bandwidth is as high as 51%, the requirement of deep-subwavelength thickness (0.07 λ ) can still be satisfied. We emphasize that the perfect absorption with large tunability in relative bandwidth (from 9% to >180 % ) was not attainable previously and may find applications ranging from noise reduction to sound imaging.

  3. Design of a surgical robot with dynamic vision field control for Single Port Endoscopic Surgery.

    Science.gov (United States)

    Kobayashi, Yo; Sekiguchi, Yuta; Tomono, Yu; Watanabe, Hiroki; Toyoda, Kazutaka; Konishi, Kozo; Tomikawa, Morimasa; Ieiri, Satoshi; Tanoue, Kazuo; Hashizume, Makoto; Fujie, Masaktsu G

    2010-01-01

    Recently, a robotic system was developed to assist Single Port Endoscopic Surgery (SPS). However, the existing system required a manual change of vision field, hindering the surgical task and increasing the degrees of freedom (DOFs) of the manipulator. We proposed a surgical robot for SPS with dynamic vision field control, the endoscope view being manipulated by a master controller. The prototype robot consisted of a positioning and sheath manipulator (6 DOF) for vision field control, and dual tool tissue manipulators (gripping: 5DOF, cautery: 3DOF). Feasibility of the robot was demonstrated in vitro. The "cut and vision field control" (using tool manipulators) is suitable for precise cutting tasks in risky areas while a "cut by vision field control" (using a vision field control manipulator) is effective for rapid macro cutting of tissues. A resection task was accomplished using a combination of both methods.

  4. Prospective, randomized comparative study between single-port laparoscopic appendectomy and conventional laparoscopic appendectomy.

    Science.gov (United States)

    Villalobos Mori, Rafael; Escoll Rufino, Jordi; Herrerías González, Fernando; Mias Carballal, M Carmen; Escartin Arias, Alfredo; Olsina Kissler, Jorge Juan

    2014-01-01

    Laparoscopic appendectomy is probably the technique of choice in acute appendicitis. Single port laparoscopic surgery (SILS) has been proposed as an alternative technique. The objective of this study is to compare the safety and efficacy of SILS against conventional laparoscopic appendectomy (LA). From January 2011 to September 2012, 120 patients with acute appendicitis were prospectively randomized; 60 for SILS and 60 for LA. Patients between 15 to 65 years were selected, with onset of symptoms less than 48h. We compared BMI, surgery time, start of oral intake, hospital stay, postoperative pain, pathology and costs. The median age, BMI, sex and time of onset of symptoms to diagnosis were similar. There were no statistically significant differences in the operative time, start of oral intake or hospital stay. There was a significant difference in postoperative pain being higher in SILS (4±1.3) than in LA (3.3±0.5) with a P=.004. Flemonous appendicitis predominated in both groups in a similar percentage. A total of 3 cases with intra-abdominal abscess (SILS 2, LA 1) required readmission and resolved spontaneously with intravenous antibiotic treatment. One case of SILS required assistance by a 5mm trocar in the RLC for drainage placement. The cost was higher in SILS due the single port device. SILS appendectomy is safe, effective and has similar results to LA in selected patients, and although the cost is greater, the long term results will determine the future of this technique. Copyright © 2013 AEC. Published by Elsevier Espana. All rights reserved.

  5. Remediation of the Highland Drive South Ravine, Port Hope, Ontario: Contaminated Groundwater Discharge Management Using Permeable Reactive Barriers and Contaminated Sediment Removal - 13447

    International Nuclear Information System (INIS)

    Smyth, David; Roos, Gillian; Ferguson Jones, Andrea; Case, Glenn; Yule, Adam

    2013-01-01

    The Highland Drive South Ravine (HDSR) is the discharge area for groundwater originating from the Highland Drive Landfill, the Pine Street North Extension (PSNE) roadbed parts of the Highland Drive roadbed and the PSNE Consolidation Site that contain historical low-level radioactive waste (LLRW). The contaminant plume from these LLRW sites contains elevated concentrations of uranium and arsenic and discharges with groundwater to shallow soils in a wet discharge area within the ravine, and directly to Hunt's Pond and Highland Drive South Creek, which are immediately to the south of the wet discharge area. Remediation and environmental management plans for HDSR have been developed within the framework of the Port Hope Project and the Port Hope Area Initiative. The LLRW sites will be fully remediated by excavation and relocation to a new Long-Term Waste Management Facility (LTWMF) as part of the Port Hope Project. It is projected, however, that the groundwater contaminant plume between the remediated LLRW sites and HDSR will persist for several hundreds of years. At the HDSR, sediment remediation within Hunt's Ponds and Highland Drive South Creek, excavation of the existing and placement of clean fill will be undertaken to remove current accumulations of solid-phase uranium and arsenic associated with the upper 0.75 m of soil in the wet discharge area, and permeable reactive barriers (PRBs) will be used for in situ treatment of contaminated groundwater to prevent the ongoing discharge of uranium and arsenic to the area in HDSR where shallow soil excavation and replacement has been undertaken. Bench-scale testing using groundwater from HDSR has confirmed excellent treatment characteristics for both uranium and arsenic using permeable reactive mixtures containing granular zero-valent iron (ZVI). A sequence of three PRBs containing ZVI and sand in backfilled trenches has been designed to intercept the groundwater flow system prior to its discharge to the ground surface

  6. Comparison of Single-Port Percutaneous Extraperitoneal Repair and Three-Port Mini-Laparoscopic Repair for Pediatric Inguinal Hernia.

    Science.gov (United States)

    Korkmaz, Mevlit; Güvenç, B Haluk

    2018-03-01

    Laparoscopy has been widely used in surgical practice in pediatric age, and many techniques for laparoscopic hernia repair have been described till now. In this study, we compared two laparoscopic techniques performed by two surgeons; each surgeon practicing only one of the two techniques. A retrospective analysis was performed on the surgical charts, enrolling 71 patients with uncomplicated inguinal hernia. Patients were divided into two groups according to the type of surgery: (Group A, 24 patients aged 2 months-8 years) laparoscopic percutaneous internal ring suturing technique and (Group B, 47 patients aged 35 days-12 years) three-port mini-laparoscopic technique. The hernia sac was ligated at the level of internal ring, using nonabsorbable 4/0-3/0 suture. Any unexpected contralateral opening was repaired in the same manner for both groups. Follow-up period was 4 months-2 years and 9 months-8 years, respectively. Operative time and complications were analyzed. Operation time (19.58 ± 7.06 minutes versus 35.87 ± 10.34 minutes, P < .001) was shorter in the percutaneous repair group. However, when subdivided by unilateral and bilateral presentation, only unilateral operative time was shorter compared to three-port group. There were no recurrences in Group A, while two recurrences occurred in Group B during the learning curve period. A contralateral opening accompanied the presenting unilateral hernia in 3 cases for Group A and 16 for Group B. One patient had to be converted open resulting from epigastric vessel injury, and postop hydrocele formation was seen in another in Group A. No intraoperative complications were seen in Group B. The overall experience shows that laparoscopic repair is a reliable approach regardless of the chosen technique. Percutaneous repair seems to be a less invasive method with shorter operative time, but it is not free of complications according to this series.

  7. Single incision versus reduced port splenectomy--searching for the best alternative to conventional laparoscopic splenectomy.

    Science.gov (United States)

    Monclova, Julio Lopez; Targarona, Eduardo M; Vidal, Pablo; Peraza, Yerald; Garcia, Francisco; Otero, Carlos Rodriguez; Pallares, Luis; Balague, Carmen; Trias, Manuel

    2013-03-01

    Laparoscopic splenectomy (LS) is a well accepted approach for the treatment of multiple hematologic diseases. Single port access splenectomy (SPAS) emphasizes the concept of surgery through one small incision. The reduced port access splenectomy (RPAS) entails the use of fewer trocars of smaller sizes. The aim of this study was to compare the clinical outcomes after LS, SPAS, and RPAS, and to analyze the aesthetic result and patient satisfaction. We included patients who underwent LS (group 1, n = 15), SPAS (group 2, n = 8), and RPAS (group 3, n = 10) between June 2008 and February 2012, whose final spleen weight was less of 500 g. The outcome parameters analyzed were operative time, need of additional trocars, blood loss, blood transfusion, weight of the spleen, postoperative complications, and duration of hospital stay. To evaluate the cosmetic result, patients were asked to take the Body Image Questionnaire. Patients in group 3 were younger than group 1. Operative time was significantly longer in group 2 compared to groups 1 and 3 (83 ± 19 vs. 131 ± 43 vs. 81 ± 22 min, p = 0.01). There was no need to convert to open surgery in any group, nor were there differences in intra- or postoperative outcome. There were no differences between the groups in relation to the analgesic requirements. Twenty-two out of the 33 patients answered the questionnaire. There was a significant advantage in group 2 and 3 in the body image index with respect to group 1. There were no differences between groups 2 and 3 (7.3 ± 2.8 vs. 5.8 ± 1.3 vs. 5.1 ± 0.4, p RPAS is a good alternative to LS and SPAS. It improves the aesthetic results as compared to LS, whereas minimizes the technical challenges faced with SPAS.

  8. Robotic liver resection: initial experience with three-arm robotic and single-port robotic technique.

    Science.gov (United States)

    Kandil, Emad; Noureldine, Salem I; Saggi, Bob; Buell, Joseph F

    2013-01-01

    Robotic-assisted surgery offers a solution to fundamental limitations of conventional laparoscopic surgery, and its use is gaining wide popularity. However, the application of this technology has yet to be established in hepatic surgery. A retrospective analysis of our prospectively collected liver surgery database was performed. Over a 6-month period, all consecutive patients who underwent robotic-assisted hepatic resection for a liver neoplasm were included. Demographics, operative time, and morbidity encountered were evaluated. A total of 7 robotic-assisted liver resections were performed, including 2 robotic-assisted single-port access liver resections with the da Vinci-Si Surgical System (Intuitive Surgical Sunnyvalle, Calif.) USA. The mean age was 44.6 years (range, 21-68 years); there were 5 male and 2 female patients. The mean operative time (± SD) was 61.4 ± 26.7 minutes; the mean operative console time (± SD) was 38.2 ± 23 minutes. No conversions were required. The mean blood loss was 100.7 mL (range, 10-200 mL). The mean hospital stay (± SD) was 2 ± 0.4 days. No postoperative morbidity related to the procedure or death was encountered. Our initial experience with robotic liver resection confirms that this technique is both feasible and safe. Robotic-assisted technology appears to improve the precision and ergonomics of single-access surgery while preserving the known benefits of laparoscopic surgery, including cosmesis, minimal morbidity, and faster recovery.

  9. Laparoendoscopic Single-Site Plus One-Port Donor Nephrectomy: Analysis of 169 Cases.

    Science.gov (United States)

    Cho, Hyuk Jin; Choi, Sae Woong; Kim, Kang Sup; Park, Yong Hyun; Bae, Woong Jin; Hong, Sung-Hoo; Lee, Ji Youl; Kim, Sae Woong; Hwang, Tae-Kon

    2015-08-01

    To present our experience with laparoendoscopic single-site plus one-port donor nephrectomy (LESSOP-DN) and compare the outcomes with laparoscopic donor nephrectomy (LDN). Prospectively collected data from 169 consecutive LESSOP-DNs and 83 LDNs performed by a single surgeon in the same time period were analyzed retrospectively. No differences in mean operative time (136 versus 130 minutes; P=.15), warm ischemia time (3.4 versus 3.5 minutes; P=.42), blood loss (50 versus 45 mL; P=.41), transfusion rates (0 versus 1 case), hospital stay (4.0 versus 3.9 days; P=.48), or overall complication rate (12.0% versus 7.7%; P=.25) were observed between the LDN and LESSOP-DN groups. The LESSOP-DN group had a shorter time to return to 100% recovery (39 versus 74 days; Pa smaller surgical incision (5.5 versus 8.2 cm; Pgroup. Renal function of the recipient based on estimated glomerular filtration rate at 1 and 3 months was similar between the groups. Health-related quality of life (QOL) was significantly higher in the LESSOP-DN group in four domains of the health survey than in the LDN group. LESSOP-DN might be associated with smaller surgical incision, improved cosmetic satisfaction, less time to recovery, less analgesic requirement, improved donor QOL, and equivalent recipient graft function.

  10. Development of the SAIT single-port surgical access robot--slave arm based on RCM mechanism.

    Science.gov (United States)

    Roh, Se-gon; Lee, Younbaek; Lee, Jongwon; Ha, Taesin; Sang, Taejun; Moon, Kyung-Won; Lee, Minhyong; Choi, Jung-yun

    2015-01-01

    An innovative single-port surgical robot has recently been developed by the Samsung Advanced Institute of Technology (SAIT). The robot can reach various surgical sites inside the abdominal cavity from a single incision on the body. It has two 7-DOF surgical tools, a 3-DOF endoscope, a flexible hyper-redundant 6-DOF guide tube, and a 6-DOF manipulator. This paper primarily focuses on the manipulator, called a slave arm, which is capable of setting the location of a Remote Center Motion (RCM) point. Because the surgical tools can explore the abdominal area through a small incision point when the RCM point is aligned with the incision area, the RCM mechanism is an integral part of the manipulator for single-port surgery. The mechanical feature, operational principle, control method, and the system architecture of the slave arm are introduced in this paper. In addition, manipulation experiments conducted validate its efficacy.

  11. Direct plasma NOx reduction using single surface dielectric barrier discharge

    DEFF Research Database (Denmark)

    Kroushawi, Feisal; Stamate, Eugen

    2014-01-01

    NOx reduction using direct atmospheric barrier discharge in air-NO mixture at different voltages and flow rates is inversigated. Reduction rate of 80% is achieved at 3.18 W/cm2 power density and gas mixture of 20 slm air and 0.006 slm NO. The ozone for NO reduction is produced by a honeycomb...... structured DBD with a total surface of 12.56 cm2. The reduction process is investigated by FTIR spectroscopy, chemiluminsecence, mass spectrometry and optical emission spectroscopy....

  12. Single-port Access Subtotal Laparoscopic Hysterectomy: A Prospective Case-Control Study.

    Science.gov (United States)

    Angioni, Stefano; Pontis, Alessandro; Pisanu, Adolfo; Mereu, Liliana; Roman, Horace

    2015-01-01

    The objective was to evaluate the perioperative outcomes, safety, and patient acceptance of single-port access laparoscopic subtotal hysterectomy (SPAL-SH) in comparison with conventional multiport access laparoscopic subtotal hysterectomy (MPAL-SH). Case-control study. Canadian Task Force Classification II-2. The study was conducted at university hospitals in Cagliari, Italy, and Rouen, France. Sixty-one women with metrorrhagia, abnormal uterine bleeding with uterine myomas, or symptomatic adenomyosis were included in the study. Thirty-one patients underwent SPAL-SH, and 30 patients underwent conventional MPAL-SH. We analyzed the data to compare the outcomes of SPAL-SH versus MPAL-SH. Patients in the SPAL-SH group had longer operative times than those in the MPAL-SH group (p < .001) but shorter hospital stays (p < .001). Postoperative pain immediately after surgery, after 6 hours, and after 24 hours were lower in the SPAL-SH group (p < .001). The SPAL-SH group reported significantly higher cosmetic satisfaction at 1, 4, and 24 weeks after surgery (p < .01). We conclude that SPAL-SH is a feasible and safe alternative to standard MPAL-SH in selected patients. Ongoing refinement of the surgical technique and instrumentation is likely to expand its role in gynecologic surgery in the future. In addition, SPAL-SH has a definite benefit in relation to body image and cosmesis. Copyright © 2015 AAGL. Published by Elsevier Inc. All rights reserved.

  13. A novel optimal coordinated control strategy for the updated robot system for single port surgery.

    Science.gov (United States)

    Bai, Weibang; Cao, Qixin; Leng, Chuntao; Cao, Yang; Fujie, Masakatsu G; Pan, Tiewen

    2017-09-01

    Research into robotic systems for single port surgery (SPS) has become widespread around the world in recent years. A new robot arm system for SPS was developed, but its positioning platform and other hardware components were not efficient. Special features of the developed surgical robot system make good teleoperation with safety and efficiency difficult. A robot arm is combined and used as new positioning platform, and the remote center motion is realized by a new method using active motion control. A new mapping strategy based on kinematics computation and a novel optimal coordinated control strategy based on real-time approaching to a defined anthropopathic criterion configuration that is referred to the customary ease state of human arms and especially the configuration of boxers' habitual preparation posture are developed. The hardware components, control architecture, control system, and mapping strategy of the robotic system has been updated. A novel optimal coordinated control strategy is proposed and tested. The new robot system can be more dexterous, intelligent, convenient and safer for preoperative positioning and intraoperative adjustment. The mapping strategy can achieve good following and representation for the slave manipulator arms. And the proposed novel control strategy can enable them to complete tasks with higher maneuverability, lower possibility of self-interference and singularity free while teleoperating. Copyright © 2017 John Wiley & Sons, Ltd.

  14. Prospective comparison of single port versus conventional laparoscopic surgery for ectopic pregnancy.

    Science.gov (United States)

    Kim, Min Kyung; Kim, Jeong Jin; Choi, Joong Sub; Eom, Jeong Min; Lee, Jung Hun

    2015-04-01

    To investigate the feasibility and safety of single port laparoscopic surgery (SP-LS) for ectopic pregnancy, irrespective of type of ectopic pregnancy and hemodynamic stability. A prospective case-control study of 106 women who underwent SP-LS or conventional LS for a suspected ectopic pregnancy was performed at a university teaching hospital from January 2009 to March 2012. Twenty-six women underwent SP-LS (SP-LS group) and 80 women underwent conventional LS (conventional LS group). There were no statistical differences between the groups in terms of demographic characteristics, operating time, hemoglobin change, return of bowel activity, hospital stay or complication rate. There were no cases of additional trocar use or conversion to laparotomy. Of five women with heterotopic pregnancy, one underwent SP-LS, and three underwent conventional LS for tubal pregnancy, which all resulted in vaginal delivery without obstetric complication; one woman received SP-LS for cornual pregnancy and had an ongoing pregnancy. SP-LS for ectopic pregnancy is feasible and safe regardless of the type of ectopic pregnancy and hemodynamic stability. However, further work is needed to confirm this conclusion and to demonstrate any advantage of SP-LS for ectopic pregnancy. © 2014 The Authors. Journal of Obstetrics and Gynaecology Research © 2014 Japan Society of Obstetrics and Gynecology.

  15. Training With Curved Laparoscopic Instruments in Single-Port Setting Improves Performance Using Straight Instruments: A Prospective Randomized Simulation Study.

    Science.gov (United States)

    Lukovich, Peter; Sionov, Valery Ben; Kakucs, Timea

    2016-01-01

    Lately single-port surgery is becoming a widespread procedure, but it is more difficult than conventional laparoscopy owing to the lack of triangulation. Although, these operations are also possible with standard laparoscopic instruments, curved instruments are being developed. The aims of the study were to identify the effect of training on a box trainer in single-port setting on the quality of acquired skills, and transferred with the straight and curved instruments for the basic laparoscopic tasks, and highlight the importance of a special laparoscopic training curriculum. A prospective study on a box trainer in single-port setting was conducted using 2 groups. Each group performed 2 tasks on the box trainer in single-port setting. Group-S used conventional straight laparoscopic instruments, and Group-C used curved laparoscopic instruments. Learning curves were obtained by daily measurements recorded in 7-day sessions. On the last day, the 2 groups changed instruments between each other. 1st Department of Surgery, Semmelweis University of Medicine from Budapest, Hungary, a university teaching hospital. In all, 20 fifth-year medical students were randomized into 2 groups. None of them had any laparoscopic or endoscopic experience. Participation was voluntary. Although Group-S performed all tasks significantly faster than Group-C on the first day, the difference proved to be nonsignificant on the last day. All participants achieved significantly shorter task completion time on the last day than on the first day, regardless of the instrument they used. Group-S showed improvement of 63.5%, and Group-C 69.0% improvement by the end of the session. After swapping the instruments, Group-S reached significantly higher task completion time with curved instruments, whereas Group-C showed further progression of 8.9% with straight instruments. Training with curved instruments in a single-port setting allows for a better acquisition of skills in a shorter period. For this

  16. High rate discharge capability of single particle electrode of LiCoO{sub 2}

    Energy Technology Data Exchange (ETDEWEB)

    Dokko, Kaoru [Department of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501 (Japan); Nakata, Natsuko; Kanamura, Kiyoshi [Department of Applied Chemistry, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397 (Japan)

    2009-04-01

    The electrochemical properties of a single particle of LiCoO{sub 2} (8 {mu}m in diameter) in an organic electrolyte were characterized using a microelectrode technique, and the high rate capability of commercially available micron-sized LiCoO{sub 2} was examined in this study. A Pt microfilament (10 {mu}m in diameter) was attached to the single LiCoO{sub 2} particle in the electrolyte during optical microscope observation, and galvanostatic charge-discharge tests were carried out. The discharge capacity of the single LiCoO{sub 2} particle (8 {mu}m diameter) was 0.157 nA h in the potential range of 3.0-4.2 V vs. Li/Li{sup +}, which was close to the theoretical capacity. The discharge rate capability of the single LiCoO{sub 2} particle was excellent, and the particle exhibited its full-discharge capacity up to a high rate of 30 C (5 nA). The discharge reaction of the single particle was not controlled by the solid-state diffusion of Li{sup +}, but by the charge transfer process at a rate lower than 30 C. The discharge capacity of the particle measured at a high rate of 300 C (50 nA) was 0.12 nA h, which was more than 75% of the full capacity of a single particle. (author)

  17. High rate discharge capability of single particle electrode of LiCoO 2

    Science.gov (United States)

    Dokko, Kaoru; Nakata, Natsuko; Kanamura, Kiyoshi

    The electrochemical properties of a single particle of LiCoO 2 (8 μm in diameter) in an organic electrolyte were characterized using a microelectrode technique, and the high rate capability of commercially available micron-sized LiCoO 2 was examined in this study. A Pt microfilament (10 μm in diameter) was attached to the single LiCoO 2 particle in the electrolyte during optical microscope observation, and galvanostatic charge-discharge tests were carried out. The discharge capacity of the single LiCoO 2 particle (8 μm diameter) was 0.157 nA h in the potential range of 3.0-4.2 V vs. Li/Li +, which was close to the theoretical capacity. The discharge rate capability of the single LiCoO 2 particle was excellent, and the particle exhibited its full-discharge capacity up to a high rate of 30 C (5 nA). The discharge reaction of the single particle was not controlled by the solid-state diffusion of Li +, but by the charge transfer process at a rate lower than 30 C. The discharge capacity of the particle measured at a high rate of 300 C (50 nA) was 0.12 nA h, which was more than 75% of the full capacity of a single particle.

  18. Large Conization and Laparoendoscopic Single-Port Pelvic Lymphadenectomy in Early-Stage Cervical Cancer for Fertility Preservation

    Directory of Open Access Journals (Sweden)

    Polat Dursun

    2013-01-01

    Full Text Available Fertility preservation in early-stage cervical cancer is a hot topic in gynecologic oncology. Although radical vaginal trachelectomy (RVT is suggested as a fertility preserving approach, there are some serious concerns like cervical stenosis, second trimester loss, preterm delivery in survivors, and lack of residual tumor in the majority of the surgical specimens. Therefore, less radical surgical operations have been proposed in early-stage cervical carcinomas. On the other hand, single-incision laparoscopic surgery (SILS is an evolving endoscopic approach for minimal access surgery. In this report, we present a case with early-stage cervical cancer who wishes to preserve fertility. We successfully performed single-port pelvic lymphadenectomy and large conization to preserve fertility potential of the patient. We think that combination of less radical approach like conization and single-port pelvic lymphadenectomy might be less minimally invasive and is still an effective surgical approach in well-selected cases with cervical carcinomas. Incorporation of single-port laparoscopy into the minimally invasive fertility sparing management of the cervical cancer will improve patients outcome with less complications and better cosmesis. Further studies are needed to reach a clear conclusion.

  19. Transumbilical laparoendoscopic single-site radical prostatectomy and cystectomy with the aid of a transurethral port: a feasibility study.

    Science.gov (United States)

    Su, Jian; Zhu, Qingyi; Yuan, Lin; Zhang, Yang; Zhang, Qingling; Wei, Yunfei

    2018-01-01

    To describe the surgical technique and report early outcomes of transurethral assisted laparoendoscopic single-site (LESS) radical prostatectomy (RP) and LESS radical cystectomy (RC) in a single institution. Between December 2014 and March 2016, a total of 114 LESS RPs and RCs were performed, comprising 68 LESS RPs, 38 LESS RCs with cutaneous ureterostomy (CU) and eight LESS RCs with orthotopic ileal neobladder (OIN). Access was achieved via a single-port, with four channels placed through a transumblical incision. After the apex of prostate was separated from the urethra, a self-developed port ('Zhu's port') was inserted through the urethra to facilitate resection of prostate and urethrovesical anastomosis. The peri-operative and postoperative data were collected and analysed retrospectively. Patients were followed up postoperatively for evidence of long-term side effects. All the procedures were completed successfully. No conversion to conventional laparoscopic surgery was necessary. For LESS RP, the average operating time was 152 min. Estimated blood loss was 117 mL. The mean hospital stay was 16.4 days after surgery. For LESS RC with CU and LESS RC with OIN, the mean operating times were 215 and 328 min, mean estimated blood loss was 175 and 252 mL, and mean hospital stay was 9.4 and 18.2 days, respectively. Six patients required blood transfusion (5.26%). Intra-operative complications occurred in two patients (1.75%), and postoperative complications in nine (7.89%). Fourteen out of 68 (20.6%) patients who underwent LESS RP had positive surgical margins. Follow-up ranged from 10 to 30.6 months. In the prostate cancer cases, good urinary control was observed in 35.3%, 97.1% and 100% of patients at 1, 6 and 12 months after the operation, respectively, while biochemical recurrence was observed in 11.8% patients. In the bladder cancer cases, two patients had local recurrence and two patients had distant metastasis. Our results showed that LESS RP and LESS RC

  20. Elective gastropexy with a reusable single-incision laparoscopic surgery port in dogs: 14 cases (2012-2013).

    Science.gov (United States)

    Stiles, Mandy; Case, J Brad; Coisman, James

    2016-08-01

    OBJECTIVE To describe the technique, clinical findings, and short-term outcome in dogs undergoing laparoscopic-assisted incisional gastropexy with a reusable single-incision surgery port. DESIGN Retrospective case series. ANIMALS 14 client-owned dogs. PROCEDURES Medical records of dogs referred for elective laparoscopic gastropexy between June 2012 and August 2013 were reviewed. History, signalment, results of physical examination and preoperative laboratory testing, surgical procedure, duration of surgery, postoperative complications, duration of hospital stay, and short-term outcome were recorded. All patients underwent general anesthesia and were positioned in dorsal recumbency. After an initial limited laparoscopic exploration, single-incision laparoscopic-assisted gastropexy was performed extracorporeally in all dogs via a conical port placed in a right paramedian location. Concurrent procedures included laparoscopic ovariectomy (n = 4), gastric biopsy (2), and castration (7). Short-term outcome was evaluated. RESULTS Median duration of surgery was 76 minutes (range, 40 to 90 minutes). Intraoperative complications were minor and consisted of loss of pneumoperitoneum in 2 of 14 dogs. A postoperative surgical site infection occurred in 1 dog and resolved with standard treatment. Median duration of follow-up was 371 days (range, 2 weeks to 1.5 years). No dogs developed gastric dilation-volvulus during the follow-up period, and all owners were satisfied with the outcome. CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that single-incision laparoscopic-assisted gastropexy with a reusable conical port was feasible and effective in appropriately selected cases. Investigation of the potential benefits of this reusable port versus single-use devices for elective gastropexy in dogs is warranted.

  1. A Comparative Study of Single Incision versus Conventional Four Ports Laparoscopic Cholecystectomy.

    Science.gov (United States)

    Hajong, Ranendra; Hajong, Debobratta; Natung, Tanie; Anand, Madhur; Sharma, Girish

    2016-10-01

    Cholelithiasis is one of the most common disorders of the digestive tract encountered by general surgeons worldwide. Conventional or open cholecystectomy was the mainstay of treatment for a long time for this disease. In the 1980s laparoscopic surgery revolutionized the management of biliary tract diseases. It brought about a revolutionary change in the basic concepts of surgical principles and minimal access surgery gradually started to be acknowledged as a safe means of carrying out surgeries. To investigate the technical feasibility, safety and benefit of Single Incision Laparoscopic Cholecystectomy (SILC) versus Conventional Four Port Laparoscopic Cholecystectomy (C4PLC). This prospective randomized control trial was conducted to compare the advantages if any between the SILC and C4PLC. Thirty two patients underwent SILC procedure and C4PLC, each. The age of the patients ranged from 16-60years. Other demographic data and indications for cholecystectomy were comparable in both the groups. Simple comparative statistical analysis was carried out in the present study. Results on continuous variables are shown in Mean ± SD; whereas results on categorical variables are shown in percentage (%) by keeping the level of significance at 5%. Intergroup analysis of the various study parameters was done by using Fisher exact test. SPSS version 22 was used for statistical analysis. The mean operating time was higher in the SILC group (69 ± 4.00 mins vs. 38.53 ± 4.00 mins) which was of statistical significance (p=post-operative pain, with lesser analgesic requirements (p=operating time was longer otherwise it has almost similar clinical outcomes to those of C4PLC.

  2. A multi-center retrospective study of single-port versus multi-port video-assisted thoracoscopic lobectomy and anatomic segmentectomy.

    Science.gov (United States)

    Ji, Chunyu; Xiang, Yangwei; Pagliarulo, Vincenzo; Lee, Jangming; Sihoe, Alan D L; Kim, HyunKoo; Zhang, Xuefei; Wang, Zhexin; Zhao, Weigang; Feng, Jian; Fang, Wentao

    2017-10-01

    To assess the feasibility and perioperative outcomes of single-port (SP) and multi-port (MP) approaches for video-assisted thoracoscopic surgery (VATS) lobectomy and anatomical segmentectomy. Retrospective data from 458 patients who received VATS lobectomy or anatomical segmentectomy at Shanghai Chest Hospital, Korea University Guro Hospital, Affiliated Hospital of National Taiwan University, University of Hong Kong Queen Mary Hospital and Shenzhen Hospital were collected. Patients were divided into SP group and MP group according to the surgical approach. Perioperative factors such as operation time, blood loss during surgery, conversion rate, the number and stations of lymph nodes harvested, postoperative chest tube drainage time, postoperative hospitalization time, perioperative morbidity and mortality, and pain scores during the first 3 days after surgery were compared between the two groups. There were no differences in the number (P=0.278) and stations (P=0.564) of lymph nodes harvested, postoperative morbidity (P=0.414) or mortality(P=0.246), and pain score on the third day (P=0.630) after surgery between the two groups. The SP group had a longer operation time (P=0.042) and greater intraoperative blood loss (P<0.001), but the conversion rate was even higher in the MP group (P=0.018). Patients in the SP group had shorter chest tube removal time (P=0.012) and postoperative hospitalization time (P=0.005). Pain scores were lower on the first (P=0.014) and second (P=0.006) day after surgery in the SP group. SP VATS lobectomy and anatomical segmentectomy is technologically more demanding than MP VATS. It can be safe and feasible in the hands of experienced surgeons, with comparable preoperative outcomes to MP VATS, but less pain in the early postoperative period.

  3. Surgical Value of Elective Minimally Invasive Gallbladder Removal: A Cost Analysis of Traditional 4-Port vs Single-Incision and Robotically Assisted Cholecystectomy.

    Science.gov (United States)

    Newman, Richard M; Umer, Affan; Bozzuto, Bethany J; Dilungo, Jennifer L; Ellner, Scott

    2016-03-01

    As the cost of health care is subjected to increasingly greater scrutiny, the assessment of new technologies must include the surgical value (SV) of the procedure. Surgical value is defined as outcome divided by cost. The cost and outcome of 50 consecutive traditional (4-port) laparoscopic cholecystectomies (TLC) were compared with 50 consecutive, nontraditional laparoscopic cholecystectomies (NTLC), between October 2012 and February 2014. The NTLC included SILS (n = 11), and robotically assisted single-incision cholecystectomies (ROBOSILS; n = 39). Our primary outcomes included minimally invasive gallbladder removal and same-day discharge. Thirty-day emergency department visits or readmissions were evaluated as a secondary outcome. The direct variable surgeon costs (DVSC) were distilled from our hospital cost accounting system and calculated on a per-case, per item basis. The average DVSC for TLC was $929 and was significantly lower than NTLC at $2,344 (p day discharge. There were no differences observed in secondary outcomes in 30-day emergency department visits (TLC [2%] vs NTLC [6%], p = 0.61) or readmissions (TLC [4%] vs NTLC [2%], p > 0.05), respectively. The relative SV was significantly higher for TLC (1) compared with NTLC (0.34) (p < 0.05), and SILS (0.66) and ROBOSILS (0.36) (p < 0.05). Nontraditional, minimally invasive gallbladder removal (SILS and ROBOSILS) offers significantly less surgical value for elective, outpatient gallbladder removal. Copyright © 2016 American College of Surgeons. Published by Elsevier Inc. All rights reserved.

  4. Discharge characteristics of a double injection-valve single-pump injection system

    Science.gov (United States)

    Lee, Dana W; Marsh, E T

    1937-01-01

    The discharge characteristics of two similar injection valves operated by a single-cylinder fuel-injection pump were determined with an apparatus that measured the quantity of fuel discharged from each valve during every 0.5 degrees of pump rotation. It was found that similar discharges took place from the two valves at all pump speeds when the valve-opening pressures, the nozzle-orifice diameters, and the injection-tube lengths were the same for both valves. Under these conditions, the effects of changing the pump speed, the pump throttle setting, or the nozzle orifice diameter were very similar to those occurring with a single-injection valve. By a proper selection of discharge-orifice areas and valve-opening pressures it was possible to obtain a great many combinations of discharge quantities, discharge rates, and injection timings for the two valves. A series of tests using injection tubes of unequal lengths for the two valves showed that under these conditions the injection timing and the fuel quantity discharged from each valve varies widely and erratically with changes in the pump speed.

  5. First case of prophylactic salpingectomy with single port access laparoscopy and a new diode laser in a woman with BRCA mutation.

    Science.gov (United States)

    Angioni, S; Mais, V; Pontis, A; Peiretti, M; Nappi, L

    2014-08-01

    Single port access laparoscopy may be suggested for prophylactic salpingectomy in BRCA carriers.•Diode laser salpingectomy could preserve ovarian function as it can cut and coagulate with extreme precision and minimal thermal damage.

  6. Surgical time and complications of total transvaginal (total-NOTES, single-port laparoscopic-assisted and conventional ovariohysterectomy in bitches

    Directory of Open Access Journals (Sweden)

    M.A.M. Silva

    2015-06-01

    Full Text Available The recently developed minimally invasive techniques of ovariohysterectomy (OVH have been studied in dogs in order to optimize their benefits and decrease risks to the patients. The purpose of this study was to compare surgical time, complications and technical difficulties of transvaginal total-NOTES, single-port laparoscopic-assisted and conventional OVH in bitches. Twelve bitches were submitted to total-NOTES (NOTES group, while 13 underwent single-port laparoscopic-assisted (SPLA group and 15 were submitted to conventional OVH (OPEN group. Intra-operative period was divided into 7 stages: (1 access to abdominal cavity; (2 pneumoperitoneum; approach to the right (3 and left (4 ovarian pedicle and uterine body (5; (6 abdominal or vaginal synthesis, performed in 6 out of 12 patients of NOTES; (7 inoperative time. Overall and stages operative times, intra and postoperative complications and technical difficulties were compared among groups. Mean overall surgical time in NOTES (25.7±6.8 minutes and SPLA (23.1±4.0 minutes groups were shorter than in the OPEN group (34.0±6.4 minutes (P<0.05. The intraoperative stage that required the longest time was the approach to the uterine body in the NOTES group and abdominal and cutaneous sutures in the OPEN group. There was no difference regarding the rates of complications. Major complications included postoperative bleeding requiring reoperation in a bitch in the OPEN group, while minor complications included mild vaginal discharge in four patients in the NOTES group and seroma in three bitches in the SPLA group. In conclusion, total-NOTES and SPLA OVH were less time-consuming then conventional OVH in bitches. All techniques presented complications, which were properly managed.

  7. Self-organization of single filaments and diffusive plasmas during a single pulse in dielectric-barrier discharges

    International Nuclear Information System (INIS)

    Babaeva, Natalia Yu; Kushner, Mark J

    2014-01-01

    Self-organization of filaments in dielectric-barrier discharges (DBDs) probably has many origins. However, the dominant cause is proposed to be the accumulation of charge on the surfaces of the bounding dielectrics that reinforces successive discharge pulses to occur at the same locations. A secondary cause is the electrostatic repulsion of individual plasma filaments. Self-organization typically develops over many discharge pulses. In this paper, we discuss the results of a computational investigation of plasma filaments in overvoltage DBDs that, under select conditions, display self-organized patterns (SOPs) of plasma density during a single discharge pulse. (Overvoltage refers to the rapid application of a voltage in excess of the quasi-dc breakdown voltage.) The origin of the SOPs is a synergistic relationship between the speed of the surface-ionization waves that propagate along each dielectric and the rate at which avalanche occurs across the gap. For our test conditions, SOPs were not observed at lower voltages and gradually formed at higher voltages. The same conditions that result in SOPs, i.e. the application of an overvoltage, also produce more diffuse discharges. A transition from a single narrow filament to a more diffuse structure was observed as overvoltage was approached. The sensitivity of SOPs to the orientation and permittivity of the bounding dielectrics is discussed. (paper)

  8. Single-port versus conventional multiport access prophylactic laparoscopic bilateral salpingo-oophorectomy in high-risk patients for ovarian cancer: a comparison of surgical outcomes

    Directory of Open Access Journals (Sweden)

    Angioni S

    2015-06-01

    Full Text Available Stefano Angioni,1 Alessandro Pontis,1 Federica Sedda,1 Theodoros Zampetoglou,2 Vito Cela,3 Liliana Mereu,4 Pietro Litta51Department of Surgical Sciences, University of Cagliari, Cagliari, Italy; 2Obstetrics and Gynecology, Iaso Thessalia Hospital, Larissa, Greece; 3Department of Obstetrics and Gynecology, University of Pisa, Pisa, 4Ospedale S Chiara, Trento, 5Department of Obstetrics and Gynecology, University of Padua, Padua, ItalyAbstract: Bilateral salpingo-oophorectomy (BSO in carriers of BRCA1 and BRCA2 mutations is widely recommended as part of a risk-reduction strategy for ovarian or breast cancer due to an underlying genetic predisposition. BSO is also performed as a therapeutic intervention for patients with hormone-positive premenopausal breast cancer. BSO may be performed via a minimally invasive approach with the use of three to four 5 mm and/or 12 mm ports inserted through a skin incision. To further reduce the morbidity associated with the placement of multiple port sites and to improve cosmetic outcomes, single-port laparoscopy has been developed with a single access point from the umbilicus. The purpose of this study was to evaluate the surgical outcomes associated with reducing the risks of salpingo-oophorectomy performed in a single port, while comparing multiport laparoscopy in women with a high risk for ovarian cancer. Single-port laparoscopy–BSO is feasible and safe, with favorable surgical and cosmetic outcomes when compared to conventional laparoscopy.Keywords: prophylactic salpingectomy, single-port access laparoscopy, BRCA carriers

  9. Two-stage unilateral versus one-stage bilateral single-port sympathectomy for palmar and axillary hyperhidrosis†

    Science.gov (United States)

    Ibrahim, Mohsen; Menna, Cecilia; Andreetti, Claudio; Ciccone, Anna Maria; D'Andrilli, Antonio; Maurizi, Giulio; Poggi, Camilla; Vanni, Camilla; Venuta, Federico; Rendina, Erino Angelo

    2013-01-01

    OBJECTIVES Video-assisted thoracoscopic sympathectomy is currently the best treatment for palmar and axillary hyperhidrosis. It can be performed through either one or two stages of surgery. This study aimed to evaluate the operative and postoperative results of two-stage unilateral vs one-stage bilateral thoracoscopic sympathectomy. METHODS From November 1995 to February 2011, 270 patients with severe palmar and/or axillary hyperhidrosis were recruited for this study. One hundred and thirty patients received one-stage bilateral, single-port video-assisted thoracoscopic sympathectomy (one-stage group) and 140, two-stage unilateral, single-port video-assisted thoracoscopic sympathectomy, with a mean time interval of 4 months between the procedures (two-stage group). RESULTS The mean postoperative follow-up period was 12.5 (range: 1–24 months). After surgery, hands and axillae of all patients were dry and warm. Sixteen (12%) patients of the one-stage group and 15 (11%) of the two-stage group suffered from mild/moderate pain (P = 0.8482). The mean operative time was 38 ± 5 min in the one-stage group and 39 ± 8 min in the two-stage group (P = 0.199). Pneumothorax occurred in 8 (6%) patients of the one-stage group and in 11 (8%) of the two-stage group. Compensatory sweating occurred in 25 (19%) patients of the one-stage group and in 6 (4%) of the two-stage group (P = 0.0001). No patients developed Horner's syndrome. CONCLUSIONS Both two-stage unilateral and one-stage bilateral single-port video-assisted thoracoscopic sympathectomies are effective, safe and minimally invasive procedures. Two-stage unilateral sympathectomy can be performed with a lower occurrence of compensatory sweating, improving permanently the quality of life in patients with palmar and axillary hyperhidrosis. PMID:23442937

  10. Single-port one-stage bilateral thoracoscopic sympathicotomy for severe hyperhidrosis: prospective analysis of a standardized approach

    Science.gov (United States)

    2013-01-01

    Background Primary palmar and/or axillary focal hyperhidrosis is a frequent disorder characterized by excessive sweating beyond physiological needs, often leading to a substantial impairment of quality of life. Over the years several minimally invasive surgical treatments have been described, however results vary, and due to a lack of uniform surgical approach, technique and nomenclature are often difficult to compare. In this prospective study we sought to evaluate the safety and effectiveness of our standardized technique of single-port, one-stage bilateral thoracoscopic sympathicotomy. Methods On a prospective basis a hundred consecutive patients with severe or intolerable primary hyperhidrosis underwent one-stage bilateral single-port thoracoscopic sympathicotomy. Primary outcome was measured in pre- vs. post-operative Hyperhidrosis Disease Severity Scale scores. Location and extend of compensatory hyperhidrosis, and satisfaction with the procedure were registered. Results A significant reduction in mean Hyperhidrosis Disease Severity Scale score (3.69 ± 0.47 preoperatively vs. 1.06 ± 0.34 postoperatively) (p 80% reduction in sweat production was achieved. Compensatory hyperhidrosis was seen in 27 patients (27%). It was rated as mild by 21 patients (78%) and as moderate by 6 (22%) of these patients. No severe compensatory hyperhidrosis was reported. Major complications, such as intraoperative bleeding, infections, and Horner’s syndrome were not observed. Conclusions Highly selective sympathicotomy at well-defined levels with a one-stage bilateral single-port transaxillary thoracoscopic approach is a save procedure, with excellent and reproducible immediate results in the treatment of primary palmar and/or axillary hyperhidrosis. PMID:24279511

  11. SINGLE CHANNEL SEISMIC APPLICATION FOR GAS CHARGED SEDIMENT RECONNAISSANCE IN GEOHAZARD STUDY OF PORT CONSTRUCTION AT WETLAND AREA

    Directory of Open Access Journals (Sweden)

    Taufan Wiguna

    2016-10-01

    Full Text Available Gas charged sediment as a one of parameter for geohazard study in infrastructure especially in swamp area. Instability of sediment layer for exampel subsidence and landslide result in geohazard potention that caused by gas charged sediment. Seismic single channel can be used to identufy gas charged sediment location. Seabed morphology is collected from bathymetry and tidal survey. From seismic profile interpretation shows gas charged sediment indication in Line A and Line B. That indication emerged by presence of acoustic turbid zone and acoustic blanking. Line A and Line B location will be spotlight in next geotechnic port construction study.

  12. The influence of prior multiport experience on the learning curve for single-port thoracoscopic lobectomy: a multicentre comparative study†.

    Science.gov (United States)

    Martin-Ucar, Antonio E; Aragon, Javier; Bolufer Nadal, Sergio; Galvez Munoz, Carlos; Luo, Qigang; Perez Mendez, Itzel; Sihoe, Alan D L; Socci, Laura

    2017-06-01

    Competency in video-assisted thoracoscopic (VATS) lobectomy is estimated to be reached after the surgeon completes 50 cases. We wanted to explore the impact of competency in performing multiport VATS lobectomies on completing the needed number of single-port VATS. In a retrospective multicentre study, 6 individual surgeons (3 with previous competency in multiport VATS lobectomy and 3 without) submitted their first 50 cases of single-port VATS lobectomies. Extended and sublobar resections were excluded. Pre-, peri- and postoperative data were compared between the groups of surgeons. Chi-square and Wilcoxon's rank tests were used. The less experienced surgeons had previously attended dedicated training courses and visited with experts. A total of 300 cases were included [150 in Group A (surgeons with previous experience performing multiport VATS) and 150 in Group B (surgeons without extensive experience performing multiport VATS)]. Surgeons in Group B performed significantly more elective open lobectomies during their learning curve period than surgeons of Group A (58 vs 1). Patients in Group B were older and had more risk factors. There were 3 in-hospital deaths (respiratory failure, sepsis and fatal stroke). There were no differences between the groups in operative time, intensive care unit admissions, hospital stay, total complications, tumour size or number of N2 stations explored. Only the duration of intercostal drainage (2 vs 3 days, 0.012), incidence of respiratory tract infections (1% vs 7%, P  = 0.002) and conversion rates (4% vs 12%, P  = 0.018) were better in Group A. Patients characteristics played a role in the development of respiratory infections and longer drainage times but not in the need for conversion. Overall, postoperative outcomes during the learning curve period for single-port VATS lobectomies are not noticeably affected by previous multiport VATS experience. Less experienced surgeons were more selective in order to achieve

  13. A Comparative Study of Single-Port Laparoscopic Surgery Versus Robotic-Assisted Laparoscopic Surgery for Rectal Cancer

    DEFF Research Database (Denmark)

    Levic, Katarina; Donatsky, Anders Meller; Bulut, Orhan

    2015-01-01

    INTRODUCTION: Conventional laparoscopic surgery is the treatment of choice for many abdominal procedures. To further reduce surgical trauma, new minimal invasive procedures such as single-port laparoscopic surgery (SPLS) and robotic assisted laparoscopic surgery (RALS) have emerged. The aim...... of this study was to compare the early results of SPLS versus RALS in the treatment of rectal cancer. METHODS: We performed a retrospective analysis of prospectively collected data on patients who had undergone SPLS (n = 36) or RALS (n = 56) in the period between 2010 and 2012. Operative and short...

  14. Single-incision Laparoscopic Appendectomy for acute Appendicitis using a 10-mm Laparoscope and the Glove Port Technique.

    Science.gov (United States)

    Tsushimi, Takaaki; Mori, Hirohito; Sudo, Manabu; Minami, Yoshihide; Ueki, Koichi; Tamai, Makoto

    2017-01-01

    To evaluate the single incision laparoscopic appendectomy (SILA) using existing instruments, the 10-mm laparoscope, and glove port technique. SILA was performed on 16 patients (8 male cases, 8 female cases) between June 2012 and September 2015. A 20-mm incision was made in the umbilicus and a wound retractor was placed. A 10-mm trocar for the laparoscope and two 5-mm trocars were fixed to the three fingers of the latex gloves and it was attached to the wound retractor. Another thin forceps were inserted from right low abdomen. Average age of patients was 32.6 ± 17.7 years. Preoperative average white blood cell was 13,325 ± 4,584 /mm 3 , and average CRP was 1.81 ± 3.70 mg/dL. Preoperative body temperature was 36.8 ± 0.5°C. The mean appendix size was 9.6 ± 2.3 mm and none of the patients had an abscess on preoperative CT. The CT also revealed a fecal pellet in 5/16 (31%) of patients. Mean operation time was 66.4 ± 25.4 minutes, and minimal intraoperative bleeding was observed in all patients. Average hospital stay was 5.3 ± 1.9 days and none of the patients had complications. SILA using the 10-mm laparoscope and glove port technique may be a safe and feasible operation for mild to moderate appendicitis.

  15. Immune and stress mediators in response to bilateral adnexectomy: comparison of single-port access and conventional laparoscopy in a porcine model.

    Science.gov (United States)

    Gracia, Meritxell; Sisó, Cristian; Martínez-Zamora, M Àngels; Sarmiento, Laura; Lozano, Francisco; Arias, Maria Teresa; Beltrán, Joan; Balasch, Juan; Carmona, Francisco

    2014-01-01

    To evaluate systemic markers of immune and stress responses after bilateral adnexectomy performed using 2 different laparoscopic techniques in pigs. Prospective comparative study (Canadian Task Force classification II-2). University teaching hospital, research hospital, and tertiary care center. Twenty female Yorkshire pigs undergoing laparoscopic surgery. Animals underwent bilateral salpingo-oophorectomy (ovary and fallopian tube extraction), performed via conventional laparoscopy (n = 10) or the single-port access approach (n = 10). Injury provokes an acute-phase response, primarily produced by cytokines. The inflammatory response has been well described for major surgery and for conventional laparoscopy; however, little information is currently available for single-port laparoscopy, and none in the gynecologic field. This is the first study to compare serum cytokine interleukin 6 (IL-6) and tumor necrosis factor alpha (TNF-α) concentrations at baseline and in the early postoperative period (2, 4, and 20 hours) after bilateral salpingo-oophorectomy performed via conventional laparoscopy (n = 10) or single-port access (n = 10) in a porcine model. The stress response was measured using glucose and cortisol concentrations and the animals' response to surgery via a 6-category observation-based behavior test. Both IL-6 and TNF-α concentrations peaked at 4 hours after surgery, and were significantly lower in the single-port access group (p = .02) than in the conventional laparoscopy group (p = .02). In addition, in the single-port access group, concentrations of stress markers were slightly lower at all intervals recorded and were statistically significant at 2 hours after the operation for glucose concentration (mean [SD], 164.50 [26.73] mg/dL for conventional laparoscopy vs 86.50 [17.93] mg/dL for single-port access; p = .02). Evidence of improved inflammatory and stress responses was recorded in the minimally invasive single-port group. More clinical

  16. Single port-assisted fully laparoscopic abdominoperineal resection (APR) with immediate V-RAM flap reconstruction of the perineal defect.

    LENUS (Irish Health Repository)

    Ali, Sayid

    2012-09-01

    Abdominoperineal resection (APR) of anorectal cancers after neoadjuvant chemoradiotherapy may incur significant perineal morbidity. While vertical rectus abdominis muscle (V-RAM) flaps can fill the pelvic resection space with health tissue, their use has previously been described predominantly in association with laparotomy. Here, we describe a means of combination laparoscopic APR with V-RAM flap reconstruction that allows structural preservation of the entire abdominal wall throughout the oncological resection and of the deep parietal layers after V-RAM donation. Furthermore, a single port access device used at the end colostomy site allows a second senior surgeon assist with an additional two working instruments for the purpose of improved pelvic tissue retraction, especially useful in obese patients.

  17. The effect of the configuration of a single electrode corona discharge on its acoustic characteristics

    Science.gov (United States)

    Zhu, Xinlei; Zhang, Liancheng; Huang, Yifan; Wang, Jin; Liu, Zhen; Yan, Keping

    2017-07-01

    A new sparker system based on pulsed spark discharge with a single electrode has already been utilized for oceanic seismic exploration. However, the electro-acoustic energy efficiency of this system is lower than that of arc discharge based systems. A simple electrode structure was investigated in order to improve the electro-acoustic energy efficiency of the spark discharge. Experiments were carried out on an experimental setup with discharge in water driven by a pulsed power source. The voltage-current waveform, acoustic signal and bubble oscillation were recorded when the relative position of the electrode varied. The electro-acoustic energy efficiency was also calculated. The load voltage had a saltation for the invaginated electrode tip, namely an obvious voltage remnant. The more the electrode tip was invaginated, the larger the pressure peaks and first period became. The results show that electrode recessing into the insulating layer is a simple and effective way to improve the electro-acoustic energy efficiency from 2% to about 4%.

  18. Dielectric barrier discharges: progress on plasma sources and on the understanding of regimes and single filaments

    Science.gov (United States)

    Brandenburg, Ronny

    2017-05-01

    Dielectric barrier discharges (DBDs) are plasmas generated in configurations with an insulating (dielectric) material between the electrodes which is responsible for a self-pulsing operation. DBDs are a typical example of nonthermal atmospheric or normal pressure gas discharges. Initially used for the generation of ozone, they have opened up many other fields of application. Therefore DBDs are a relevant tool in current plasma technology as well as an object for fundamental studies. Another motivation for further research is the fact that so-called partial discharges in insulated high voltage systems are special types of DBDs. The breakdown processes, the formation of structures, and the role of surface processes are currently under investigation. This review is intended to give an update to the already existing literature on DBDs considering the research and development within the last two decades. The main principles and different modes of discharge generation are summarized. A collection of known as well as special electrode configurations and reactor designs will be presented. This shall demonstrate the different and broad possibilities, but also the similarities and common aspects of devices for different fields of applications explored within the last years. The main part is devoted to the progress on the investigation of different aspects of breakdown and plasma formation with the focus on single filaments or microdischarges. This includes a summary of the current knowledge on the electrical characterization of filamentary DBDs. In particular, the recent new insights on the elementary volume and surface memory mechanisms in these discharges will be discussed. An outlook for the forthcoming challenges on research and development will be given.

  19. Comparison of Early Results and Complications between Multi-and Single-Port Sleeve Gastrectomy: A Randomized Clinical Study

    Directory of Open Access Journals (Sweden)

    Seyed Vahid Hosseini

    2017-05-01

    Full Text Available Background: In recent years, laparoscopic sleeve gastrectomy (LSG has become more acceptable for obese patients. Single-port sleeve gastrectomy (SPSG is more popular since each abdominal incision carries the risk of bleeding, hernia, and internal organ injury as well as exponentially affecting cosmesis. This cross-sectional study aimed at comparing multi-port sleeve gastrectomy (MPSG and SPSG in terms of their early results and complications. Methods: Out of129 obese patients candidated for LSG, 102 patients were assigned to 2 groups of SPSG and MPSG. Complications and demographic data such as body mass index (BMI, age, gender, operation time, and hospital stay were measured. All surgeries were carried out between2013 and 2015 in Shiraz, Iran. Data analysis was performed using SPSS, version 16 for Windows (SPSS Inc., Chicago, IL. The continuous and categorical variables were compared using the Student t-test and the Chi-square test or the Fisher exact test, respectively. Results: The patients’ data from both groups were similar in terms of age, intraoperative and postoperative bleeding volume, and length of hospital stay. Mean BMI was 42.8±0.7 in the SPSG group and 45.3±1.2 in the MPSG group. Duration of surgery was significantly lower in the SPSG group (P<0.001. Only 1 patient from the SPSG group and 5 patients from the MPSG group had bleeding as an early complication. Conclusion: The differences in each complication between the groups were not statistically significant. SPSG seems to be safe and is the same as MPSG in terms of major postoperative complications. Trial Registration Number: IRCT201512229936N12

  20. Double Pass 595?nm pulsed dye laser at a 6 minute interval for the treatment of port-wine stains is not more effective than single pass

    NARCIS (Netherlands)

    Peters, M. A. D.; van Drooge, A. M.; Wolkerstorfer, A.; van Gemert, M. J. C.; van der Veen, J. P. W.; Bos, J. D.; Beek, J. F.

    2012-01-01

    Background Pulsed dye laser (PDL) is the first choice for treatment of port wine stains (PWS). However, outcome is highly variable and only a few patients achieve complete clearance. The objective of the study was to compare efficacy and safety of single pass PDL with double pass PDL at a 6 minute

  1. Single-Port Laparoscopic Surgery in Children: Concept and Controversies of the New Technique

    Directory of Open Access Journals (Sweden)

    Felix C. Blanco

    2012-01-01

    Full Text Available Single-incision laparoscopic surgery (SILS is emerging as an alternative technique to conventional laparoscopy for the treatment of common surgical diseases. Despite its wide use, the adoption of SILS in children has been slower since the broad application of minimally invasive techniques in children, in general, has historically lagged behind those in adults. This paper reviews the evolution of SILS from its original conception and its application in the field of pediatric surgery.

  2. No difference in incidence of port-site hernia and chronic pain after single-incision laparoscopic cholecystectomy versus conventional laparoscopic cholecystectomy

    DEFF Research Database (Denmark)

    Christoffersen, Mette W; Brandt, Erik; Oehlenschläger, Jacob

    2015-01-01

    and matched 1:2 with patients subjected to CLC using pre-defined criteria. Follow-up data were obtained from the Danish National Patient Registry, mailed patient questionnaires, and clinical examination. A port-site hernia was defined as a repair for a port-site hernia or clinical hernia located at one......BACKGROUND: Conventional laparoscopic cholecystectomy (CLC) is regarded as the gold standard for cholecystectomy. However, single-incision laparoscopic cholecystectomy (SLC) has been suggested to replace CLC. This study aimed at comparing long-term incidences of port-site hernia and chronic pain...... after SLC versus CLC. METHODS: We conducted a matched cohort study based on prospective data (Jan 1, 2009-June 1, 2011) from the Danish Cholecystectomy Database with perioperative information and clinical follow-up. Consecutive patients undergoing elective SLC during the study period were included...

  3. Feasibility and analgesic efficacy of the transversus abdominis plane block after single-port laparoscopy in patients having bariatric surgery

    Directory of Open Access Journals (Sweden)

    Wassef M

    2013-11-01

    Full Text Available Michael Wassef, David Y Lee, Jun L Levine, Ronald E Ross, Hamza Guend, Catherine Vandepitte, Admir Hadzic, Julio TeixeiraDepartment of Anesthesiology, St Luke's-Roosevelt Hospital Center, New York, NY, USAPurpose: The transversus abdominis plane (TAP block is a technique increasingly used for analgesia after surgery on the anterior abdominal wall. We undertook this study to determine the feasibility and analgesic efficacy of ultrasound-guided TAP blocks in morbidly obese patients. We describe the dermatomal spread of local anesthetic in TAP blocks administered, and test the hypothesis that TAP blocks decrease visual analog scale (VAS scores.Patients and methods: After ethics committee approval and informed consent, 35 patients with body mass index >35 undergoing single-port sleeve gastrectomy (SPSG were enrolled. All patients received balanced general anesthesia, followed by intravenous patient-controlled analgesia (IV-PCA; hydromorphone postoperatively; all reported VAS >3 upon arrival to the recovery room. From the cohort of 35 patients having single-port laparoscopy (SPL, a sealed envelope method was used to randomly select ten patients to the TAP group and 25 patients to the control group. The ten patients in the TAP group received ultrasound-guided TAP blocks with 30 mL of 0.2% Ropivacaine injected bilaterally. The dermatomal distribution of the sensory block (by pinprick test was recorded. VAS scores for the first 24 hours after surgery and opioid use were compared between the IV-PCA+TAP block and IV-PCA only groups.Results: Sensory block ranged from T5–L1. Mean VAS pain scores decreased from 8 ± 2 to 4 ± 3 (P=0.04 within 30 minutes of TAP block administration. Compared with patients given IV-PCA only, significantly fewer patients who received TAP block had moderate or severe pain (VAS 4–10 after block administration at 6 hours and 12 hours post-surgery. However, cumulative consumption of hydromorphone at 24 hours after SPSG surgery

  4. Potential Advantages of a Single-Port, Operator-Controlled Flexible Endoscope System for Transoral Surgery of the Larynx.

    Science.gov (United States)

    Friedrich, Daniel T; Scheithauer, Marc O; Greve, Jens; Duvvuri, Uma; Sommer, Fabian; Hoffmann, Thomas K; Schuler, Patrick J

    2015-08-01

    Transoral surgery of the larynx is commonly performed with a rigid laryngoscope, a microscope, and a laser. We investigated the potential utility of a flexible, single-port, robot-assisted and physician-controlled endoscopic system to enable easy, transoral surgical access to the larynx. Transoral laryngeal surgery was performed in human cadavers (n = 4) using the Flex System and compatible flexible instruments. Anatomical landmarks were identified, and mock surgical procedures were performed. Standard laryngeal surgical procedures were completed successfully in a human cadaver model. The built-in HD digital camera enabled high-quality visualization of the larynx. Epiglottectomy, as well as posterior cordectomy, were performed by laser and radio-frequency resection. The flexible design of the compatible tools enabled a nontraumatic approach. The Flex System has the potential to improve surgical access to the larynx, especially in patients with challenging anatomy. The associated flexible instruments enabled completion of surgical procedures in the larynx in a human cadaveric model. Further clinical studies, as well as the development of supplemental technology and tools, are recommended for future clinical applications. © The Author(s) 2015.

  5. Port site infiltration of local anesthetic after laparoendoscopic single site surgery for benign adnexal disease.

    Science.gov (United States)

    Kim, Jung Eun; Shim, Seung-Hyuk; Dong, Meari; Lee, Hyojin; Hwang, Han Sung; Kwon, Han Sung; Lee, Sun Joo; Lee, Ji Young; Sohn, In Sook; Kim, Soo-Nyung; Kang, Soon-Beom

    2017-09-01

    To determine whether local bupivacaine injection into the incision site after gynecologic laparoendoscopic single site surgery (LESS) improves postoperative pain. This prospective cohort study included consecutive 158 patients who had LESS for benign adnexal disease from March 2013 to December 2015. Chronologically, 82 patients (March 2013 to August 2014) received no bupivacaine (group 1) and 76 (August 2014 to December 2015) received a bupivacaine block (group 2). For group 2, 10 mL 0.25% bupivacaine was injected into the 20 mm-incision site through all preperitoneal layers after LESS completion. Primary outcome is postoperative pain score using the visual analog scale (VAS). There was no difference in clinicopathological characteristics between the groups. Operating time (expressed as median [range], 92 [55-222] vs. 100 [50-185] minutes, P =0.137) and estimated blood loss (50 [30-1,500] vs. 125 [30-1,000] mL, P =0.482) were similar between the groups. Post-surgical VAS pain scores after 3 hours (3.5 [2-6] vs. 3.5 [2-5], P =0.478), 6 to 8 hours (3.5 [2-6] vs. 3 [1-8], P =0.478), and 16 to 24 hours (3 [2-4] vs. 3 [1-7], P =0.664) did not differ between groups. Bupivacaine injection into the trocar site did not improve postoperative pain after LESS. Randomized trials are needed to evaluate the benefits of local bupivacaine anesthetic for postoperative pain reduction.

  6. Principal Ports

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Principal Ports are defined by port limits or US Army Corps of Engineers (USACE) projects, these exclude non-USACE projects not authorized for publication. The...

  7. Dispersion and characterization of arc discharge single-walled carbon nanotubes--towards conducting transparent films.

    Science.gov (United States)

    Rösner, B; Guldi, D M; Chen, J; Minett, A I; Fink, R H

    2014-04-07

    This study addresses a combination of a well-developed and mild dispersion method and high-quality arc discharge single-walled carbon nanotubes (SWCNTs) as starting materials. Thus, we advance in fabrication of transparent, conducting films with extraordinary low material loss during SWCNT processing. The starting material was characterized by means of thermogravimetric analysis, high-resolution transmission electron microscopy and Raman spectroscopy. The quality of the starting material and produced dispersions was evaluated by ultraviolet and visible light absorption spectroscopy and Raman spectroscopy. A transparent conductive film was fabricated by drop-casting, whereas films were obtained with electrical to optical conductivity ratios (σDC/σOp) as high as 2.2, combined with a loss of nanotube material during processing well below 20 wt%. High pressure carbon monoxide conversion (HiPCO) SWCNTs, which are very well described in the literature, were used for comparison.

  8. Analytical study of ozone generation in a single discharge in oxygen

    International Nuclear Information System (INIS)

    Hernandez A, A.O.

    1995-01-01

    The present thesis work, in the case of the equations description the generation ozone process, an atomic oxygen it was described, in the first part, the analysis of perturbative method used in [1] to solve this kind of equations, so on the solutions in the stationary and temporal cases were rensed by means of a constant flux velocity. The second part present the solutions to the sat dy state equations for constant mean flux velocity (Poiseuille form) at low pressures. Finally, the resulting equations were compared with other authors reports. [1] C. Gutierrez-Tapia, E. Camps and O. Olea-Cardoso, Perturbative method for ozone synthesis from oxygen in a single discharge. IEEE Trans. on Plasma Sci. 22(5) 979-985, 1994. (Author)

  9. Postoperative pain after conventional laparoscopic versus single-port sleeve gastrectomy: a prospective, randomized, controlled pilot study.

    Science.gov (United States)

    Morales-Conde, Salvador; Del Agua, Isaías Alarcón; Moreno, Antonio Barranco; Macías, María Socas

    2017-04-01

    Laparoscopic approach is the gold standard for surgical treatment of morbid obesity. The single-port (SP) approach has been demonstrated to be a safe and effective technique for the treatment of morbid obesity in several case control studies. Compare conventional multiport laparoscopy (LAP) with an SP approach for the treatment of morbid obesity using sleeve gastrectomy in terms of postoperative pain using a visual analog scale (VAS) 0-100, surgical outcome, weight loss, and aesthetical satisfaction at 6 months after surgery. University Hospital, Spain. Randomized, controlled pilot study. The trial enrolled patients suitable for bariatric surgery, with a body mass index lower than 50 kg/m 2 and xiphoumbilical distance lower than 25 cm. Patients were randomly assigned to receive LAP or SP sleeve gastrectomy. A total of 30 patients were enrolled; 15 were assigned to LAP group and 15 to SP group. No patients were lost during follow-up. Baseline characteristics were similar in both groups. A significantly higher level of pain during movement was noted for the patients in the LAP group on the first (mean VAS 49.3±12.2 versus 34.1±8.9, P = .046) and second days (mean VAS 35.9±10.2 versus 22.1±7.9, P = .044) but not the third day (mean VAS 20.1±5.2 versus 34.12.9 ±4.3, P = .620). No differences regarding pain at rest, operative time, complications, or weight loss at 6 months were observed. Higher aesthetical satisfaction was noticed in SP group. In selected patients, SP surgery presented less postoperative pain in sleeve gastrectomy compared with the conventional laparoscopic approach with similar surgical results. Copyright © 2017 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.

  10. NEW TECHNIQUE FOR OBESITY SURGERY: INTERNAL GASTRIC PLICATION TECHNIQUE USING INTRAGASTRIC SINGLE-PORT (IGS-IGP) IN EXPERIMENTAL MODEL.

    Science.gov (United States)

    Müller, Verena; Fikatas, Panagiotis; Gül, Safak; Noesser, Maximilian; Fuehrer, Kirs Ten; Sauer, Igor; Pratschke, Johann; Zorron, Ricardo

    2017-01-01

    Bariatric surgery is currently the most effective method to ameliorate co-morbidities as consequence of morbidly obese patients with BMI over 35 kg/m2. Endoscopic techniques have been developed to treat patients with mild obesity and ameliorate comorbidities, but endoscopic skills are needed, beside the costs of the devices. To report a new technique for internal gastric plication using an intragastric single port device in an experimental swine model. Twenty experiments using fresh pig cadaver stomachs in a laparoscopic trainer were performed. The procedure was performed as follow in ten pigs: 1) volume measure; 2) insufflation of the stomach with CO2; 3) extroversion of the stomach through the simulator and installation of the single port device (Gelpoint Applied Mini) through a gastrotomy close to the pylorus; 4) performance of four intragastric handsewn 4-point sutures with Prolene 2-0, from the gastric fundus to the antrum; 5) after the performance, the residual volume was measured. Sleeve gastrectomy was also performed in further ten pigs and pre- and post-procedure gastric volume were measured. The internal gastric plication technique was performed successfully in the ten swine experiments. The mean procedure time was 27±4 min. It produced a reduction of gastric volume of a mean of 51%, and sleeve gastrectomy, a mean of 90% in this swine model. The internal gastric plication technique using an intragastric single port device required few skills to perform, had low operative time and achieved good reduction (51%) of gastric volume in an in vitro experimental model. A cirurgia bariátrica é atualmente o método mais efetivo para melhorar as co-morbidades decorrentes da obesidade mórbida com IMC acima de 35 kg/m2. Técnicas endoscópicas foram desenvolvidas para tratar pacientes com obesidade leve e melhorar as comorbidades, mas habilidades endoscópicas são necessárias, além dos custos. Relatar uma nova técnica para a plicatura gástrica interna

  11. Discharge mechanisms and electrochemical impedance spectroscopy measurements of single negative and positive lead-acid battery plates

    Energy Technology Data Exchange (ETDEWEB)

    D' Alkaine, C.V. [Group of Electrochemistry and Polymers, Chemistry Department, Federal University of Sao Carlos, 13560-905 Sao Carlos, SP (Brazil); Mengarda, P.; Impinnisi, P.R. [Battery Laboratory, Institute of Technology for Development - LACTEC, Curitiba, PR (Brazil)

    2009-06-01

    This study interpreted open circuit impedance measurements of single negative and positive lead-acid battery plates, which were at different discharge levels and arranged in a four-electrode cell. This was performed in the framework of a proposed general model of charge/discharge reactions, morphological models of active materials, and based on interpretation of the characteristics of single negative and positive plates as measured by electrochemical impedance spectroscopy (EIS). This study shows that the proposed reaction models, morphological characteristics and EIS attributions are compatible with the obtained EIS data. The analysis indicates that negative and positive plate reaction mechanisms cannot be those proposed by the dissolution-precipitation mechanism alone. Rather, the reactions seem to obey the various mechanisms and morphologic ideas proposed in the present paper. It is shown that variations in the resistivity and dielectric constants of discharged films need to be studied in greater detail than film thicknesses to gain a better understanding of the processes. (author)

  12. Low propagation loss in a one-port SAW resonator fabricated on single-crystal diamond for super-high-frequency applications.

    Science.gov (United States)

    Fujii, Satoshi; Odawara, Tatsuya; Yamada, Haruya; Omori, Tatsuya; Hashimoto, Ken-Ya; Torii, Hironori; Umezawa, Hitoshi; Shikata, Shinichi

    2013-05-01

    Diamond has the highest known SAW phase velocity, sufficient for applications in the gigahertz range. However, although numerous studies have demonstrated SAW devices on polycrystalline diamond thin films, all have had much larger propagation loss than single-crystal materials such as LiNbO3. Hence, in this study, we fabricated and characterized one-port SAW resonators on single-crystal diamond substrates synthesized using a high-pressure and high-temperature method to identify and minimize sources of propagation loss. A series of one-port resonators were fabricated with the interdigital transducer/ AlN/diamond structure and their characteristics were measured. The device with the best performance exhibited a resonance frequency f of 5.3 GHz, and the equivalent circuit model gave a quality factor Q of 5509. Thus, a large fQ product of approximately 2.9 × 10(13) was obtained, and the propagation loss was found to be only 0.006 dB/wavelength. These excellent properties are attributed mainly to the reduction of scattering loss in a substrate using a single-crystal diamond, which originated from the grain boundary of diamond and the surface roughness of the AlN thin film and the diamond substrate. These results show that single-crystal diamond SAW resonators have great potential for use in low-noise super-high-frequency oscillators.

  13. Cosmesis and body image after single-port laparoscopic or conventional laparoscopic cholecystectomy: a multicenter double blinded randomised controlled trial (SPOCC-trial

    Directory of Open Access Journals (Sweden)

    Vonlanthen René

    2011-09-01

    Full Text Available Abstract Background Emerging attempts have been made to reduce operative trauma and improve cosmetic results of laparoscopic cholecystectomy. There is a trend towards minimizing the number of incisions such as natural transluminal endoscopic surgery (NOTES and single-port laparoscopic cholecystectomy (SPLC. Many retrospective case series propose excellent cosmesis and reduced pain in SPLC. As the latter has been confirmed in a randomized controlled trial, patient's satisfaction on cosmesis is still controversially debated. Methods/Design The SPOCC trial is a prospective, multi-center, double blinded, randomized controlled study comparing SPLC with 4-port conventional laparoscopic cholecystectomy (4PLC in elective surgery. The hypothesis and primary objective is that patients undergoing SPLC will have a better outcome in cosmesis and body image 12 weeks after surgery. This primary endpoint is assessed using a validated 8-item multiple choice type questionnaire on cosmesis and body image. The secondary endpoint has three entities: the quality of life 12 weeks after surgery assessed by the validated Short-Form-36 Health Survey questionnaire, postoperative pain assessed by a visual analogue scale and the use of analgesics. Operative time, surgeon's experience with SPLC and 4PLC, use of additional ports, conversion to 4PLC or open cholecystectomy, length of stay, costs, time of work as well as intra- and postoperative complications are further aspects of the secondary endpoint. Patients are randomly assigned either to SPLC or to 4PLC. Patients as well as treating physicians, nurses and assessors are blinded until the 7th postoperative day. Sample size calculation performed by estimating a difference of cosmesis of 20% (alpha = 0.05 and beta = 0.90, drop out rate of 10% resulted in a number of 55 randomized patients per arm. Discussion The SPOCC-trial is a prospective, multi-center, double-blind, randomized controlled study to assess cosmesis and body

  14. Electro-discharge mashining of natural single-phase adsorbent for sewage treatment

    International Nuclear Information System (INIS)

    Gashimov, A.M.; Gurbanov, K.B.; Zakieva, I.G.; Gasanov, M.A.; Ganbarov, D.M.

    2012-01-01

    Full text : The results of research of wastewater treatment plants with soap-electric effect have been presented. It has been shown that using other electric discharge effect of barrier type has led to the significant increasing adsorption refining efficiency of wastewater

  15. Quality of life and cosmetic result of single-port access endoscopic thyroidectomy via axillary approach in patients with papillary thyroid carcinoma

    Directory of Open Access Journals (Sweden)

    Huang JK

    2016-07-01

    Full Text Available Jian-kang Huang,1 Ling Ma,2 Wen-hua Song,1 Bang-yu Lu,3 Yu-bin Huang,3 Hui-ming Dong1 1Department of Surgical Oncology, 2Department of Gynecologic Tumor, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, 3Department of Minimally Invasive Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China Background: Endoscopic thyroidectomy for minimally invasive thyroid surgery has been widely applied in the past decade. The present study aimed to evaluate the effects of single-port access transaxillary totally endoscopic thyroidectomy on the postoperative outcomes and functional parameters, including quality of life and cosmetic result in patients with papillary thyroid carcinoma (PTC.Patients and methods: Seventy-five patients with PTC who underwent endoscopic thyroidectomy via a single-port access transaxillary approach were included (experimental group. A total of 123 patients with PTC who were subjected to conventional open total thyroidectomy served as the control group. The health-related quality of life and cosmetic and satisfaction outcomes were assessed postoperatively.Results: The mean operation time was significantly increased in the experimental group. The physiological functions and social functions in the two groups were remarkably augmented after 6 months of surgery. However, there was no significant difference in the scores of speech and taste between the two groups at the indicated time of 1 month and 6 months. In addition, the scores for appearance, satisfaction with appearance, role-physical, bodily pain, and general health in the experimental group were better than those in the control group at 1 month and 6 months after surgery.Conclusion: The single-port access transaxillary totally endoscopic thyroidectomy is safe and feasible for the treatment of patients with PTC. The subjects who underwent this technique have a good perception of their general

  16. Dual-port distal gastrectomy for the early gastric cancer

    OpenAIRE

    Kashiwagi, Hiroyuki; Kumagai, Kenta; Monma, Eiji; Nozue, Mutsumi

    2014-01-01

    Background Although recent trends in laparoscopic procedures have been toward minimizing the number of incisions, four or five ports are normally required to complete laparoscopic gastrectomy because of the complexity of this procedure. Multi-channel ports, such as the SILS port (Covidien, JAPAN), are now available and are crucial for performing single-incision laparoscopic surgery (SILS) or reduced port surgery (RPS). We carried out reduced port distal gastrectomy (RPDG) using a dual-port me...

  17. Radionuclide deflation effects at contaminated environmental area in case of single and steady discharges to the atmosphere

    International Nuclear Information System (INIS)

    Makhon'ko, K.P.

    1984-01-01

    The effects of wind generation of radioactive dust in the area contaminated as a result of single or steady radionuclide discharges to the atmosphere are considered. Calculations are given on changing in time of the deflation coefficient Ksub(α) cm -1 on the base of the radionuclides migration rate account into the depth from a surface dust-forming soil layer and irradiation dose for account of radionuclides penetrated by food chains and into respiratory organs as a result of dusting of the contaminated zone. It is shown that the deflation effects play an essential part in case of emergency discharges owing to the possibility of including radionuclides in food chains through plants. The numerical calculations are performed for 90 Sr and 137 Cs and for light and heavy natural deposit soils

  18. Characteristics of X-point lobe structures in single-null discharges on MAST

    Czech Academy of Sciences Publication Activity Database

    Harrison, J.R.; Kirk, A.; Chapman, I.T.; Cahyna, Pavel; Liu, Y.; Nardon, E.; Thornton, A.J.

    2014-01-01

    Roč. 54, č. 6 (2014), 064015-064015 ISSN 0029-5515 R&D Projects: GA ČR GAP205/11/2341 Institutional support: RVO:61389021 Keywords : tokamak * MAST * X-point * resonant magnetic perturbation Subject RIV: BL - Plasma and Gas Discharge Physics Impact factor: 3.062, year: 2014 http://iopscience.iop.org/0029-5515/54/6/064015/pdf/0029-5515_54_6_064015.pdf

  19. Ports Primer: 3.2 Port Governance

    Science.gov (United States)

    State and local governments are important players in port governance and in oversight of transportation projects that may affect ports. Private corporations may also play a role if they lease or own a terminal at a port.

  20. Tracer-based quantification of individual frac discharge in single-well multiple-frac backflow: sensitivity study

    Science.gov (United States)

    Ghergut, Julia; Behrens, Horst; Sauter, Martin

    2014-05-01

    a simplified flow and tracer transport model (using FEOW and assuming Darcian flow within the matrix, Hagen-Poiseuille flow within the waterfrac, and either D or H-P flow within the gel-proppant fracs), whose main findings are: (1) late tracer signals are almost independent on matrix porosity, permeability distribution, frac area (length), thickness and effective aperture, while being highly sensitive to local discharge values; 'late' means a backflow or production volume at least fivefold the injected chaser volume; (2a) early tracer signals (concentration 'peak' intervals) may exhibit slight 'acceleration' and 'damping' with increasing matrix porosity or increasing frac aperture (a 'paradoxical' behaviour which is not really surprising for single-well 'push-then-backflow' tests, actually owing to flow-field dispersion[4]), and (2b) a non-monotonous response to varying frac area, being almost insensitive to frac area as long as the linear-flow regime prevails against the radial-flow regime (effects of the latter only becoming visible at very low frac areas); (2c) the effects of these various factors on early-time tracer signals are not unambiguously discernible from each other, and this ambiguity would persist even if frac-resolved (in-situ) discharge metering were feasible. For each of the three fracs (k=1,2,3), a 'type-curve' set Ck(Q,t) (parametrized by discharge values Q) can be generated. Since every frac received a different tracer, tracer signals measured within the overall backflow will differ from individual-frac type-curves by mere dilution (no 'superposition'). Type-curve dilution by factor Qk/Qtotal can be compared to measured tracer concentrations in the total discharge, ck(ti), (i = 1, ..., no. of tracer samplings). From a formal point of view, the unknown discharge values Qk can be determined as the solution of a linear optimization task subject to the constraint Q1 + Q2 + Q3 = Qtotal (the latter being a measured value). It is recommendable to

  1. Submarine Groundwater Discharge at a Single Spot Location: Evaluation of Different Detection Approaches

    Directory of Open Access Journals (Sweden)

    Michael Schubert

    2014-03-01

    Full Text Available Submarine groundwater discharge (SGD into the ocean is of general interest because it acts as vehicle for the transport of dissolved contaminants and/or nutrients into the coastal sea and because it may be accompanied by the loss of significant volumes of freshwater. Due to the large-scale and long-term nature of the related hydrological processes, environmental tracers are required for SGD investigation. The water parameters of electrical conductivity and temperature, the naturally occurring radionuclides of radon and radium as well as the stable water isotopes 18O and 2H have proven in previous studies their general suitability for the detection and quantification of SGD. However, individual hydrogeological settings require a site-specific application of this “tool box”. This study evaluates and compares the applicability of the abovementioned tracers for investigating SGD from a distinct submarine source in a karst environment at Cabbé, southern France. The specific advantages and disadvantages of each individual parameter under the given hydrogeological conditions are discussed. Radon appeared to be the most suitable environmental tracer in the site specific context. The water temperature was less reliable due to the little temperature difference between seawater and groundwater and since the diurnal variation of the air temperature masks potential SGD signals. Radium isotopes are less applicable in the studied region due to the lack of a well-developed subterranean estuary. The stable water isotopes showed results consistent with the salinity and radon data; however, the significantly higher effort required for stable isotope analyses is disadvantageous. A multi-temporal thermal remote sensing approach proved to be a powerful tool for initial SGD surveying.

  2. Single-Electrical-Port Control of Cascaded Doubly-Fed Induction Machine for EV/HEV Applications

    DEFF Research Database (Denmark)

    Han, Peng; Cheng, Ming; Chen, Zhe

    2017-01-01

    as a master/slave architecture, that is, the power winding is supplied with a constant-voltage constant-frequency inverter, termed as the master inverter, in an open-loop way, while the control winding is fed by a closed-loop field-oriented-controlled (FOC) variable-voltage variable-frequency inverter, termed...... as slave inverter. With this configuration, the control emphasis is placed on the slave inverter, yielding reduced control complexity and cost, and the inaccuracy of flux estimation in conventional FOC for singly-fed induction machines is avoided at very low or even zero speed. It is found that the doubly...

  3. Characteristic study of plasma waves by varying the applied RF frequency and electron temperature in single frequency capacitive discharges

    International Nuclear Information System (INIS)

    Sharma, Sarveshwar; Turner, M.M.

    2013-01-01

    In low-pressure capacitive discharges, stochastic heating is the dominant electron heating mechanism which occurs due to the momentum transfer from the oscillating electron sheath edge to electrons. The existence of waves in electron density close to the sheath edge was firstly reported in literature but a comprehensive analysis of their nature has not been discussed. The evidence of wave emission with a frequency near to electron plasma frequency adjacent the sheath territory in case of collisionless plasma in single frequency capacitive discharges was detailed investigated by S Sharma et al. Here the wave properties have been studied by varying the current density amplitude J0 for a constant Radio-Frequency (RF), 27.12 MHz. The electron temperature was also constant (2.5 eV). The field reversal and ion reflection phenomena were reported. In current research work, these waves are studied by varying the frequency of applied RF and keeping other parameters constant. The wave amplitude changes with the frequency of applied RF and the presence of strong field reversal region also observed. The wave properties are also studied by varying the electron temperature Te for applied frequency 27.12 MHz by keeping all other controlling parameters constant. At low values of electron temperature i.e. ∼ 2 eV the strong field reversal emerges. The wave amplitude is also varies by changing electron temperature. (author)

  4. Changes in the biomechanical properties of a single cell induced by nonthermal atmospheric pressure micro-dielectric barrier discharge plasma.

    Science.gov (United States)

    Choi, Hyeongwon; Choi, Eun Ha; Kim, Kyung Sook

    2017-10-01

    Mechanical properties of a single cell are closely related to the fate and functions of the cell. Changes in mechanical properties may cause diseases or cell apoptosis. Selective cytotoxic effects of nonthermal atmospheric pressure micro-dielectric barrier discharge (DBD) plasma have been demonstrated on cancer cells. In this work, changes in the mechanical properties of a single cell induced by nonthermal atmospheric pressure micro-DBD plasma were investigated using atomic force microscopy (AFM). Two cervical cancer cell lines (HeLa and SiHa) and normal human fibroblast cells (HFBs) were exposed to micro-DBD plasma for various exposure times. The elasticity of a single cell was determined by force-distance curve measurement using AFM. Young's modulus was decreased by plasma treatment for all cells. The Young's modulus of plasma-treated HeLa cells was decreased by 75% compared to nontreated HeLa cells. In SiHa cells and HFBs, elasticity was decreased slightly. Chemical changes induced by the plasma treatment, which were observed by Raman spectroscopy, were also significant in HeLa cells compared to SiHa cells and HFBs. These results suggested that the molecular changes induced by micro-DBD plasma were related to cell mechanical changes. © 2017 Wiley Periodicals, Inc.

  5. The use of expanding ports in laparo-endoscopic single-site surgery may cause more pain

    DEFF Research Database (Denmark)

    Dressler, Jannie; Jorgensen, Lars N

    2017-01-01

    BACKGROUND: Previous meta-analyses on the clinical outcome after laparo-endoscopic single-site surgery (LESS) versus conventional laparoscopic surgery (CLS) have not revealed any major differences in postoperative pain between the two procedures. This meta-analysis aims to evaluate the difference...... for randomized clinical trials (RCTs) on LESS versus CLS for general abdominal procedures. Weighted mean difference (WMD) and Odds ratios (OR) were calculated with 95% confidence intervals (CI). RESULTS: A total of 29 RCTs with 2999 procedures were included. Pain (VAS 0-10) 6 h after surgery was significantly...... in LESSex procedures compared to CLS, OR = 1.94 (1.03-3.63). CONCLUSION: The present meta-analysis indirectly indicates that the type of access device that is used for an abdominal LESS procedure may contribute to the development of early postoperative pain as the use of a non-expanding model was associated...

  6. Double Pass 595 nm Pulsed Dye Laser Does Not Enhance the Efficacy of Port Wine Stains Compared with Single Pass: A Randomized Comparison with Histological Examination.

    Science.gov (United States)

    Yu, Wenxin; Zhu, Jiafang; Wang, Lizhen; Qiu, Yajing; Chen, Yijie; Yang, Xi; Chang, Lei; Ma, Gang; Lin, Xiaoxi

    2018-03-27

    To compare the efficacy and safety of double-pass pulsed dye laser (DWL) and single-pass PDL (SWL) in treating virgin port wine stain (PWS). The increase in the extent of vascular damage attributed to the use of double-pass techniques for PWS remains inconclusive. A prospective, side-by-side comparison with a histological study for virgin PWS is still lacking. Twenty-one patients (11 flat PWS, 10 hypertrophic PWS) with untreated PWS underwent 3 treatments at 2-month intervals. Each PWS was divided into three treatment sites: SWL, DWL, and untreated control. Chromametric and visual evaluation of the efficacy and evaluation of side effects were conducted 3 months after final treatment. Biopsies were taken at the treated sites immediately posttreatment. Chromametric and visual evaluation suggested that DWL sites showed no significant improvement compared with SWL (p > 0.05) in treating PWS. The mean depth of photothermal damage to the vessels was limited to a maximum of 0.36-0.41 mm in both SWL and DWL sides. Permanent side effects were not observed in any patients. Double-pass PDL does not enhance PWS clearance. To improve the clearance of PWS lesions, either the depth of laser penetration should be increased or greater photothermal damage to vessels should be generated.

  7. Oncologic outcomes obtained after laparoscopic, robotic and/or single port nephroureterectomy for upper urinary tract tumours.

    Science.gov (United States)

    Ribal, Maria J; Huguet, J; Alcaraz, A

    2013-02-01

    Open surgery (ONU) is still considered to be the gold standard approach for nephroureterectomy (NU); however, with the introduction of laparoscopic surgery, minimally invasive techniques have been applied to surgical therapy of upper urinary tract tumours (UUT-UC) and they are gaining adepts. However, several concerns still exist about the safety of laparoscopic nephroureterectomy (LNU) in the treatment of UUT-UC, and different authors suggest that, although it could be equivalent to open surgery, this equivalence is not accomplished in all UUT-UC, suggesting that more advanced disease should undergo open surgery. More controversial still is the application of robotic surgery (RALNU) or really novel minimally invasive techniques, such as laparoendoscopic single-site surgery (LESSNU), for the treatment of UUT-UC. Although all these techniques seem feasible, their influence on oncologic results is still a matter of concern. We present a review on the oncologic outcomes of minimally invasive laparoscopic techniques in the treatment of UUT-UC. We focus our analysis on oncologic outcomes and we also analyze the different techniques proposed for the treatment of the distal ureter during minimally invasive surgery for UUT-UC. In the absence of prospective randomized studies with large patient samples, we must base our conclusions on retrospective studies and longer follow-up. Given the evidence accumulated so far, LNU has proven to be equivalent or non-inferior, in terms of recurrence-free survival (RFS) and cancer-specific survival (CSS) to ONU. Nevertheless, comparative studies are needed with longer follow-up before determining the equivalence of LNU in advanced tumours.

  8. Principal Ports and Facilities

    Data.gov (United States)

    California Natural Resource Agency — The Principal Port file contains USACE port codes, geographic locations (longitude, latitude), names, and commodity tonnage summaries (total tons, domestic, foreign,...

  9. Principal Ports and Facilities

    Data.gov (United States)

    California Department of Resources — The Principal Port file contains USACE port codes, geographic locations (longitude, latitude), names, and commodity tonnage summaries (total tons, domestic, foreign,...

  10. Porting GENESIS to SIMULINK.

    Science.gov (United States)

    Rodriguez Campos, Francisco; Enderle, John D

    2004-01-01

    This paper describes the porting of the general simulation system (GENESIS) to Matrix Language Laboratory language (MatLab) SIMULINK, based in the cable theory to simulate the behavior of neurons. A graphic programming approach serves as ideal platform for teaching physiological modeling and neuroengineering courses. The ultimate goal of this project is to integrate all of the chemical, electrical, material, mechanical and neural interactions into a single model that can be viewed seamlessly from a molecular model to the large scale model. Integration of all interactions is not possible with GENESIS, but can be accomplished with SIMULINK.

  11. Selective arc-discharge synthesis of Dy2S-clusterfullerenes and their isomer-dependent single molecule magnetism.

    Science.gov (United States)

    Chen, Chia-Hsiang; Krylov, Denis S; Avdoshenko, Stanislav M; Liu, Fupin; Spree, Lukas; Yadav, Ravi; Alvertis, Antonis; Hozoi, Liviu; Nenkov, Konstantin; Kostanyan, Aram; Greber, Thomas; Wolter, Anja U B; Popov, Alexey A

    2017-09-01

    A method for the selective synthesis of sulfide clusterfullerenes Dy 2 S@C 2 n is developed. Addition of methane to the reactive atmosphere reduces the formation of empty fullerenes in the arc-discharge synthesis, whereas the use of Dy 2 S 3 as a source of metal and sulfur affords sulfide clusterfullerenes as the main fullerene products along with smaller amounts of carbide clusterfullerenes. Two isomers of Dy 2 S@C 82 with C s (6) and C 3v (8) cage symmetry, Dy 2 S@C 72 - C s (10528), and a carbide clusterfullerene Dy 2 C 2 @C 82 - C s (6) were isolated. The molecular structure of both Dy 2 S@C 82 isomers was elucidated by single-crystal X-ray diffraction. SQUID magnetometry demonstrates that all of these clusterfullerenes exhibit hysteresis of magnetization, with Dy 2 S@C 82 - C 3v (8) being the strongest single molecule magnet in the series. DC- and AC-susceptibility measurements were used to determine magnetization relaxation times in the temperature range from 1.6 K to 70 K. Unprecedented magnetization relaxation dynamics with three consequent Orbach processes and energy barriers of 10.5, 48, and 1232 K are determined for Dy 2 S@C 82 - C 3v (8). Dy 2 S@C 82 - C s (6) exhibits faster relaxation of magnetization with two barriers of 15.2 and 523 K. Ab initio calculations were used to interpret experimental data and compare the Dy-sulfide clusterfullerenes to other Dy-clusterfullerenes. The smallest and largest barriers are ascribed to the exchange/dipolar barrier and relaxation via crystal-field states, respectively, whereas an intermediate energy barrier of 48 K in Dy 2 S@C 82 - C 3v (8) is assigned to the local phonon mode, corresponding to the librational motion of the Dy 2 S cluster inside the carbon cage.

  12. Port-Wine Stains

    Science.gov (United States)

    ... Safe Videos for Educators Search English Español Port-Wine Stains KidsHealth / For Parents / Port-Wine Stains What's ... Manchas de vino de oporto What Are Port-Wine Stains? A port-wine stain is a type ...

  13. Strategic port development

    DEFF Research Database (Denmark)

    Olesen, Peter Bjerg; Dukovska-Popovska, Iskra; Hvolby, Hans-Henrik

    2014-01-01

    While large global ports are recognised as playing a central role in many supply chains as logistic gateways, smaller regional ports have been more stagnant and have not reached the same level of development as the larger ports. The research literature in relation to port development is also...

  14. Flat-port connectors

    KAUST Repository

    Alrashed, Mohammed

    2017-05-26

    Disclosed are various embodiments for connectors used with electronic devices, such as input and/or output ports to connect peripheral equipment or accessories. More specifically, various flat-port are provided that can be used in place of standard connectors including, but not limited to, audio jacks and Universal Serial Bus (USB) ports. The flat-port connectors are an alternate connection design to replace the traditional receptacle port (female-port), making the device more sealed creation more dust and water resistant. It is unique in the way of using the outer surfaces of the device for the electrical connection between the ports. Flat-port design can allow the manufacture of extremely thin devices by eliminating the side ports slots that take a lot of space and contribute to the increase thickness of the device. The flat-port receptacle improves the overall appearance of the device and makes it more resistant to dust and water.

  15. Does Ultrasound-Guided Directional Vacuum-Assisted Removal Help Eliminate Abnormal Nipple Discharge in Patients with Benign Intraductal Single Mass?

    Energy Technology Data Exchange (ETDEWEB)

    Chang, Jung Min; Cho, Na Ri Ya; Moon, Woo Kyung [Seoul National University Hospital, Seoul (Korea, Republic of); Park, Jeong Seon [Hanyang University Hospital, Seoul (Korea, Republic of); Chung, Se Yeong [Seoul National University Boramae Hospital, Seoul (Korea, Republic of); Jang, Mi Jung [Seoul National University Bundang Hospital, Seongnam (Korea, Republic of)

    2009-12-15

    To evaluate whether the removal of an intraductal mass using an ultrasound (US)-guided directional vacuum-assisted device can eliminate symptoms in patients presenting with abnormal nipple discharge. Between March 2004 and October 2006, 36 patients who presented with abnormal nipple discharge, underwent US-guided, 11-gauge vacuum-assisted biopsy for a benign intraductal single mass on US. The ability of the procedure to eliminate nipple discharge was evaluated by physical examination during follow-up US. Lesion characteristics, biopsy variables, and histologic features were analyzed to identify factors affecting symptom resolution. Of the 36 lesions, 25 (69%) were intraductal papillomas, 10 (28%) were fibrocystic changes, and one (3%) was a fibroadenoma. The nipple discharge disappeared in 69% (25 of 36) of the women at a mean follow-up time of 25 months (range 12-42 month). There was no difference in the lesion characteristics, biopsy variables, and the histologic features between groups that eliminated the symptom compared those with persistent nipple discharge. US-guided directional vacuum-assisted removal of an intraductal mass appears to eliminate nipple discharge in only 69% of patients and thus, it should not be considered as an alternative to surgical excision.

  16. Mid-term survival outcome of single-port video-assisted thoracoscopic anatomical lung resection: a two-centre experience.

    Science.gov (United States)

    Wu, Ching Feng; Fernandez, Ricardo; Mercedes, de la Torre; Delgado, Maria; Fieira, Eva; Wu, Ching Yang; Hsieh, Ming Ju; Paradela, Marina; Liu, Yun-Hen; Gonzalez-Rivas, Diego

    2018-03-03

    Single-port video-assisted thoracoscopic surgery (SPVATS) anatomical resection has been shown to be a feasible technique for lung cancer patients. Whether SPVATS has equivalent or better oncological outcomes for lung cancer patients remains controversial. The purpose of this study was to evaluate the perioperative and mid-term survival outcomes of SPVATS in 2 different medical centres. We retrospectively reviewed patients who underwent SPVATS anatomical resections between January 2014 and February 2017 in Coruña University Hospital's Minimally Invasive Thoracic Surgery Unit (Spain) and Chang Gung Memorial Hospital (Taiwan). Survival outcomes were assessed by pathological stage according to the American Joint Committee on Cancer (AJCC) 7th and 8th classifications. In total, 307 patients were enrolled in this study. Mean drainage days and postoperative hospital stay were 3.90 ± 2.98 and 5.03 ± 3.34 days. The overall 30-day mortality, 90-day morbidity and mortality rate were 0.7%, 20.1% and 0.7%, respectively. The 2-year disease-free survival and 2-year overall survival of the cohort were 80.6% and 93.4% for 1A, 68.8% and 84.6% for 1B, 51.0% and 66.7% for 2A, 21.6% and 61.1% for 2B, 47.6% and 58.5% for 3A, respectively, following the AJCC 7th classification. By the AJCC 8th classification, these were 92.3% and 100% for 1A1, 73.7% and 91.4% for 1A2, 75.2% and 93.4% for 1A3, 62.1% and 85.9% for 1B, 55.6% and 72.7% for 2A, 47.1% and 64.2% for 2B and 42.1% and 60.3% for 3A. Our preliminary results revealed that SPVATS anatomical resection achieves acceptable 2-year survival outcomes for early-stage lung cancer and is consistent with AJCC 8th staging system 2-year survival data. For advanced stage non-small-cell lung cancer patients, further evaluation is warranted.

  17. Usefulness of {sup 99m}Tc-DTPA renography and diuretic renography in predicting successful stone discharge following outpatient ESWL in patients with a single ureteral stone

    Energy Technology Data Exchange (ETDEWEB)

    Soga, Norihito; Komeda, Yoshinori [Yokkaichi Health Insurance Hospital, Mie (Japan); Suzuki, Ryuichi; Kawamura, Juichi

    1996-11-01

    We analyzed the {sup 99m}Tc-DTPA renogram with and without diuresis to predict the possibility of stone discharge on the outpatient basis by renogram patterns. Between October 1993 and December 1995, {sup 99m}Tc-DTPA renography was performed in 79 patients with a single ureteral stone. The {sup 99m}Tc-DTPA renogram pattern was classified into the three types of normal function, obstruction and lower function patterns and the complete stone discharge rate was 93, 63 and 25%, respectively. In addition, diuretic renography using Furosemide was performed in patients with an obstruction pattern and the three renogram patterns of return to the normal curve, a diuretic response and no response were obtained; the complete stone discharge rate was 44, 65.3 and 93%, respectively. From this study, patients with a single ureteral stone with a normal pattern on the regular DTPA renogram and patients with no response pattern on the diuretic renogram, even if in such patients an obstructive pattern was seen on the regular DTPA renogram, seem to be a good candidate for obtaining a high rate of a stone discharge with extracorporeal shock wave lithotripsy (ESWL) treatment in the outpatients basis. (author)

  18. Port Authority Best Practices

    Science.gov (United States)

    Best practices for port authorities include near-port community collaboration, anti-idling policies, expanding off-peak hours, development of EMS, developing an emissions inventory, education, electric power and substituting trucking for rail or barge.

  19. US Ports of Entry

    Data.gov (United States)

    Department of Homeland Security — HSIP Non-Crossing Ports-of-Entry A Port of Entry is any designated place at which a CBP officer is authorized to accept entries of merchandise to collect duties, and...

  20. Video-Assisted Thoracoscopic Surgery for Pediatric Empyema by Two-Port Technique: A Single-Center Experience with 167 Consecutive Cases

    Science.gov (United States)

    Parelkar, Sandesh V.; Patil, Shalil H.; Sanghvi, Beejal V.; Gupta, Rahul Kumar; Mhaskar, Satej S.; Shah, Rujuta S.; Tiwari, Pooja; Pawar, Arjun A.

    2017-01-01

    Background/Purpose: The aim of our study is to determine efficacy, safety, and feasibility of video-assisted thoracoscopic surgery (VATS) in childhood empyema with a technique of only two ports and open instruments at a tertiary care center in India. Methods: This is a retrospective study of patients below 18 years, with empyema presenting to the Department of Pediatric Surgery of a Tertiary Care Referral Hospital in India, over a period of 9 years who underwent VATS decortication. Only two ports with open surgical instruments were used. The patients were assessed on the basis of mean duration of preoperative symptoms, duration of surgery, average blood loss, postoperative pain relief, complications, and need for redo surgery. Results: A total of 97 patients underwent primary VATS decortications without inserting an intercostal drainage (ICD) tube and 70 patients as a secondary procedure after ICD tube was inserted. Mean duration of symptoms was 11 days. The average blood loss during surgery was estimated to be 170 cc. The mean duration of surgery was 90 min. The most common postoperative complication was air leak seen in 19.16% of patients. Minor leaks usually settled by 24 h. In eight patients, a negative suction had to be applied to the ICD tube for persistent air leak. The average length of postoperative stay was 4 days. Two patients required a repeat open decortication procedure due to nonresolution of symptoms and poor lung expansion after VATS. Patients had minimal pain and excellent cosmetic outcome after VATS. Conclusion: Two-port VATS decortication procedure is as feasible and effective as three-port procedure for decortication with better cosmetic result and pain relief. PMID:28694571

  1. Getting Port Governance Right

    DEFF Research Database (Denmark)

    de Langen, Peter; Saragiotis, Periklis

    2018-01-01

    This chapter discusses the relevance of ports for economic development and next identifies port governance as a critical determinant of a well-functioning port industry. While in the past decades privately owned terminal operating companies have emerged and contributed to more efficient supply ch...

  2. [A retrospective controlled clinical study of single-incision plus one port laparoscopic surgery for sigmoid colon and upper rectal cancer].

    Science.gov (United States)

    Li, G X; Li, J M; Wang, Y N; Deng, H J; Mou, T Y; Liu, H

    2017-07-01

    Objective: To evaluate the short-term and oncologic outcomes of single-incision plus one port laparoscopic surgery (SILS+ 1) for sigmoid colon and upper rectal cancer. Methods: The clinic data of 46 patients with sigmoid colon and upper rectal cancer underwent SILS+ 1 at Department of General Surgery, Nanfang Hospital, Southern Medical University from September 2013 to September 2014 were retrospectively reviewed (SILS+ 1 group). After generating 1∶1 ration propensity scores given the covariates of age, gender, body mass index, American Society of Anesthesiologists score, surgeons, tumor location, the distance of tumor from anal, tumor diameter, and pathologic TNM stage, 46 patients with sigmoid colon and upper rectal cancer underwent conventional laparoscopic surgery (CLS) in the same time were matched as CLS group. The baseline characteristics and short-term outcomes were compared using t test, χ(2) test or Wilcoxon signed ranks test. Kaplan-Meier survival curves and Log-rank tests demonstrated the distribution of disease free survival. Results: The two study groups were well balanced with respect to the baseline characteristics of the propensity score derivation model. As compared to the CLS group, patients in SILS+ 1 group had a smaller incision ((6.9±1.1) cm vs . (8.4±1.2) cm, t =6.502, P =0.000), less estimated blood loss (20(11) ml vs . 50(30) ml, Z =2.414, P =0.016), shorter intracorporeal operating time ((67.0±25.8) minutes vs . (75.5±27.7) minutes, t =2.062, P =0.042) and significantly faster recovery course including shorter time to first ambulation ((46.7±20.3) hours vs . (78.6±28.0) hours, t =6.255, P =0.000), shorter time to first oral diet ((64.7±28.8) hours vs . (77.1±30.0) hours, t =2.026, P =0.047), shorter time of postoperative hospital stay ((7.8±2.2) days vs . (6.5±2.2) days, t =2.680, P =0.009), and lower postoperative visual analogue scale scores ( F =4.721, P =0.032). No significant difference was observed in total operating

  3. High Efficiency Non-isolated Three Port DC-DC Converter for PV-Battery Systems

    DEFF Research Database (Denmark)

    Tomas Manez, Kevin; Anthon, Alexander; Zhang, Zhe

    2016-01-01

    This paper presents a nonisolated Three Port Converter (TPC) with a unidirectional port for photovoltaic (PV) panels and a bidirectional port for energy storage. With the proposed topology single power conversion is performed between each port, so high efficiencies are obtained. A theoretical...

  4. Sea freight - Antwerp Port

    Directory of Open Access Journals (Sweden)

    NEACSU Nicoleta Andreea

    2017-01-01

    Full Text Available Shipping plays a vital role in achieving the movement of goods, both in terms of quantity and efficiency. This paper presents the role and advantages of shipping in the global economy and analyzes the development and Antwerp Port activity. Currently, the second most important trading port in Europe and 14th in the ranking of most important ports that handle containers worldwide, the Port of Antwerp, Belgium is a port in the heart of Europe, accessible to large sized vessels. 200 years of constructing infrastructure and logistics around the central location, as well as pressure from Rotterdam, that had an impact on the competitiveness of the port of Antwerp, all this led the port to occupy a leading position in the top rankings.

  5. Heart pacemaker - discharge

    Science.gov (United States)

    Cardiac pacemaker implantation - discharge; Artificial pacemaker - discharge; Permanent pacemaker - discharge; Internal pacemaker - discharge; Cardiac resynchronization therapy - discharge; CRT - discharge; ...

  6. Evaluation of Patient Satisfaction Using the EORTC IN-PATSAT32 Questionnaire and Surgical Outcome in Single-Port Surgery for Benign Adnexal Disease: Observational Comparison with Traditional Laparoscopy

    Directory of Open Access Journals (Sweden)

    Alessandro Buda

    2013-01-01

    Full Text Available Laparoscopic surgery has been demonstrated as a valid approach in almost all gynaecologic procedures including malignant diseases. Benefits of the minimally invasive approach over traditional open surgery have been well demonstrated in terms of minimal perioperative morbidity and reduced postoperative pain and hospital stay duration, with consequent quick postoperative recovery (Medeiros et al. (2009. Single-port surgery resurfaced in gynaecology surgery in recent years and renewed interest among other surgeons and within the industry to develop this field (Podolsky et al. (2009. Patient satisfaction is emerging as an increasingly important measure of quality which represents a complex entity that is dependent on patient demographics, comorbidities, disease, and, to a large extent, patient expectations (Tomlinson and Ko (2006. It can be broadly thought to refer to all relevant experiences and processes associated with health care delivery (Jackson et al. (2001. In this study we aim to compare single-port surgery (SPS with conventional laparoscopy in terms of patient satisfaction using the EORTC IN-PATSAT32 questionnaire. We also evaluate the main surgical outcomes of both minimally invasive approaches.

  7. Predicted implications of using percentage weight gain as single discharge criterion in management of acute malnutrition in rural southern Ethiopia.

    Science.gov (United States)

    Forsén, Emmanuel; Tadesse, Elazar; Berhane, Yemane; Ekström, Eva-Charlotte

    2015-10-01

    Mid-upper arm circumference (MUAC) is increasingly used in identifying and admitting children with acute malnutrition for treatment. It is easy to use because it does not involve height assessment, but its use calls for alternative discharge criteria. This study examined how use of percentage weight gain as discharge criterion would affect the nutritional status of children admitted into a community-based management programme for acute malnutrition in rural southern Ethiopia. Non-oedematous children (n = 631) aged 6-59 months and having a MUAC of weight was added to admission weight and their nutritional status by weight-for-height z-score (WHZ) was determined at each target. Moderate and severe wasting according to World Health Organization WHZ definitions was used as outcome. Applying the most commonly recommended target of 15% weight gain resulted in 9% of children with admission MUAC weight gain was sufficient to generate a similar result. Children failing to recover were the ones with the poorest nutritional status at admission. Increasing the percentage weight gain targets in the two groups to 20% and 15%, respectively, would largely resolve wasting but likely lead to increased programme costs by keeping already recovered children in the programme. Further research is needed on appropriate discharge procedures in programmes using MUAC for screening and admission. © 2013 John Wiley & Sons Ltd.

  8. Experimental study of heating scheme effect on the inner divertor power footprint widths in EAST lower single null discharges

    Science.gov (United States)

    Deng, G. Z.; Xu, J. C.; Liu, X.; Liu, X. J.; Liu, J. B.; Zhang, H.; Liu, S. C.; Chen, L.; Yan, N.; Feng, W.; Liu, H.; Xia, T. Y.; Zhang, B.; Shao, L. M.; Ming, T. F.; Xu, G. S.; Guo, H. Y.; Xu, X. Q.; Gao, X.; Wang, L.

    2018-04-01

    A comprehensive work of the effects of plasma current and heating schemes on divertor power footprint widths is carried out in the experimental advanced superconducting tokamak (EAST). The divertor power footprint widths, i.e., the scrape-off layer heat flux decay length λ q and the heat spreading S, are crucial physical and engineering parameters for fusion reactors. Strong inverse scaling of λ q and S with plasma current have been demonstrated for both neutral beam (NB) and lower hybrid wave (LHW) heated L-mode and H-mode plasmas at the inner divertor target. For plasmas heated by the combination of the two kinds of auxiliary heating schemes (NB and LHW), the divertor power widths tend to be larger in plasmas with higher ratio of LHW power. Comparison between experimental heat flux profiles at outer mid-plane (OMP) and divertor target for NB heated and LHW heated L-mode plasmas reveals that the magnetic topology changes induced by LHW may be the main reason to the wider divertor power widths in LHW heated discharges. The effect of heating schemes on divertor peak heat flux has also been investigated, and it is found that LHW heated discharges tend to have a lower divertor peak heat flux compared with NB heated discharges under similar input power. All these findings seem to suggest that plasmas with LHW auxiliary heating scheme are better heat exhaust scenarios for fusion reactors and should be the priorities for the design of next-step fusion reactors like China Fusion Engineering Test Reactor.

  9. Efficacy of Tamarindus indicus, Melia azadirach and Santalum album in syndromic management of abnormal vaginal discharge: A single-blind randomised controlled trial.

    Science.gov (United States)

    Bhat, Tabasum Ali; Begum, Wajeeha

    2017-12-19

    Background At least 25 % of women attending genitourinary medicine (GUM) clinics receive treatment for one of the three common causes of abnormal vaginal discharge: bacterial vaginosis, candidiasis and trichomoniasis. Syndromic diagnostic approach was adopted by National AIDS Control Organisation (NACO) India, at the primary health centre level. Syndromic management implies the simultaneous treatment of two or more infections. The aim of this study was to assess efficacy of sandal sufaid, maghze tukhme bakayin and khaste tamar hindi in syndromic management of Sailanur rehm. Methods This study was a randomized, single blind, standard controlled trial. It was conducted to compare efficacy of formulation which contains buradae sandal safaid, safoofe maghze tukhme bakayin, safoofe khaste tamar hindi and safoofe shakkar safaid against combination of azithromycin, fluconazole and secnidazole on diagnosed subjects of Sailanur rehm. Test group received 10 g of test drug B.D for 21 days while control group received single dose of standard drug to both the partners. Vaginal symptom score (VSS) was used for assessing discharge and associated complaints. Visual analogous scale (VAS) was used for assessing low backache and lower abdominal pain. Results There were no significant differences between the two groups concerning baseline characteristics (p>0.05). VSS was significantly decreased with p<0.001 for both control and test group. VAS was significantly decreased with p<0.001 and p=0.07 in test and control group respectively for low backache. For lower abdominal pain p=0.006 for both groups after the completion of treatment. Conclusions The formulation can effectively alleviate the disease with associated symptoms without any side effects. It can be used in syndromic management of vaginal discharge. Future research is on large sample size.

  10. Port Harcourt Medical Journal

    African Journals Online (AJOL)

    Port Harcourt Medical Journal's objectives are to disseminate medical information from the College of Health Sciences, University of Port Harcourt and the rest of the national and international medical community; act as a medium for the articulation of research and findings from same as well as proceedings of medical ...

  11. The Flexible Port

    NARCIS (Netherlands)

    Taneja, P.

    2013-01-01

    Ports are beset with many uncertainties about their futures. They are confronted with new demands in terms of functions and scales, new external constraints, and changed expectations. The inability to adequately meet these demands can mean costly adaptations for a port, or loss of cargo and

  12. 78 FR 42588 - Deepwater Port License Application: Liberty Natural Gas LLC, Port Ambrose Deepwater Port

    Science.gov (United States)

    2013-07-16

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF TRANSPORTATION Maritime Administration Deepwater Port License Application: Liberty Natural Gas LLC, Port Ambrose Deepwater Port AGENCY: Maritime Administration, Department of Transportation. ACTION: Notice of intent...

  13. The Windows serial port programming handbook

    CERN Document Server

    Bai, Ying

    2004-01-01

    The fundamentals of serial port communications. Serial port programming in ANSI C and Assembly languages for MS-DOS. Serial ports interface developed in VC++ 6.0. Serial port programming in Visual Basic. Serial port programming in LabVIEW. Serial port programming in MATLAB. Serial port programming in Smalltalk. Serial port programming in Java.

  14. A comparative study on trans-umbilical single-port laparoscopic approach versus conventional repair for incarcerated inguinal hernia in children

    Directory of Open Access Journals (Sweden)

    Zhang Jun

    2016-01-01

    Full Text Available Purpose: The purpose of this study is to determine whether singleport laparoscopic repair (SLR for incarcerated inguinal hernia in children is superior toconventional repair (CR approaches. Method: Between March 2013 and September 2013, 126 infants and children treatedwere retrospectively reviewed. All the patients were divided into three groups. Group A (48 patients underwent trans-umbilical SLR, group B (36 patients was subjected to trans-umbilical conventional two-port laparoscopic repair (TLR while the conventional open surgery repair (COR was performed in group C (42 patients. Data regarding the operating time, bleeding volume, post-operative hydrocele formation, testicular atrophy, cosmetic results, recurrence rate, and duration of hospital stay of the patients were collected. Result: All the cases were completed successfully without conversion. The mean operative time for group A was 15 ± 3.9 min and 24 ± 7.2 min for unilateral hernia and bilateral hernia respectively, whereas for group B, it was 13 ± 6.7 min and 23 ± 9.2 min. The mean duration of surgery in group C was 35 ± 5.2 min for unilateral hernia. The recurrence rate was 0% in all the three groups. There were statistically significant differences in theoperating time, bleeding volume, post-operative hydrocele formation, cosmetic results and duration hospital stay between the three groups (P < 0.001. No statistically significant differences between SLR and TLR were observed except the more cosmetic result in SLR. Conclusion: SLR is safe and effective, minimally invasive, and is a new technology worth promoting.

  15. Adnexal Masses Treated Using a Combination of the SILS Port and Noncurved Straight Laparoscopic Instruments: Turkish Experience and Review of the Literature

    Directory of Open Access Journals (Sweden)

    Polat Dursun

    2013-01-01

    Full Text Available Objective. To report our experience treating adnexal masses using a combination of the SILS port and straight nonroticulating laparoscopic instruments. Study Design. This prospective feasibility study included 14 women with symptomatic and persistent adnexal masses. Removal of adnexal masses via single-incision laparoscopic surgery using a combination of the SILS port and straight nonroticulating laparoscopic instruments was performed. Results. All of the patients had symptomatic complex adnexal masses. Mean age of the patients was 38.4 years (range: 21–61 years and mean duration of surgery was 71 min (range: 45–130 min. All surgeries were performed using nonroticulating straight laparoscopic instruments. Mean tumor diameter was 6 cm (range: 5–12 cm. All patient pathology reports were benign. None of the patients converted to laparotomy. All the patients were discharged on postoperative d1. Postoperatively, all the patients were satisfied with their incision and cosmetic results. Conclusion. All 14 patients were successfully treated using standard, straight nonroticulating laparoscopic instruments via the SILS port. This procedure can reduce the cost of treatment, which may eventually lead to more widespread use of the SILS port approach. Furthermore, concomitant surgical procedures are possible using this approach. However, properly designed comparative studies with single port and classic laparoscopic surgery are urgently needed.

  16. COSIMA-ES-PORT

    DEFF Research Database (Denmark)

    Barfod, Michael Bruhn; Leleur, Steen

    2007-01-01

    This article describes the results of the research project – WP3 East-west, Interreg IIIB – concerning the de¬velop¬ment of a new composite decision model, COSIMA-ES-PORT, for the assessment of three pre-feasibility studies situated at the Port of Esbjerg: a road project, a railway project...... and a multimodal terminal. The three studies indicates that a new road connection to the Port of Esbjerg is a very profitable project due to large travel time savings, whereas a new railway connection is not economically viable. However, a new multimodal terminal is also a very profitable project. The COSIMA......-ES-PORT model showed some promising perspectives in the handling of the three pre-feasibility studies. Parameters such as cargo handling and ship related issues could with advantage be implemented in the decision model and forecasted similarly to road infrastructure impacts. Furthermore, the development...

  17. Multiple-port valve

    International Nuclear Information System (INIS)

    Doody, T.J.

    1978-01-01

    A multiple-port valve assembly is designed to direct flow from a primary conduit into any one of a plurality of secondary conduits as well as to direct a reverse flow. The valve includes two mating hemispherical sockets that rotatably receive a spherical valve plug. The valve plug is attached to the primary conduit and includes diverging passageways from that conduit to a plurality of ports. Each of the ports is alignable with one or more of a plurality of secondary conduits fitting into one of the hemispherical sockets. The other hemispherical socket includes a slot for the primary conduit such that the conduit's motion along that slot with rotation of the spherical plug about various axes will position the valve-plug ports in respect to the secondary conduits

  18. Shoulder replacement - discharge

    Science.gov (United States)

    Total shoulder arthroplasty - discharge; Endoprosthetic shoulder replacement - discharge; Partial shoulder replacement - discharge; Partial shoulder arthroplasty - discharge; Replacement - shoulder - discharge; Arthroplasty - shoulder - discharge

  19. Concept design of CFETR superconducting magnet system based on different maintenance ports

    International Nuclear Information System (INIS)

    Zheng, Jinxing; Liu, Xufeng; Song, Yuntao; Wan, Yuanxi; Li, Jiangang; Wu, Sontao; Wan, Baonian; Ye, Minyou; Wei, Jianghua; Xu, Weiwei; Liu, Sumei; Weng, Peide; Lu, Kun; Luo, Zhengping

    2013-01-01

    Highlights: • This article discussed the concept design of the magnet system of CFETR based on different maintenance port cases. • The major and minor radius of plasma is 5.7 m and 1.6 m, and the central magnetic field was designed as 4.5/5.0 T. • The different maintenance ports design have little impact on the design of TF and CS coils’ design, but have certain impact on the PF coils’ design. -- Abstract: CFETR which stands for “China Fusion Engineering Test Reactor” is a new tokamak device. Its magnet system includes the Toroidal Field (TF) winding, Center solenoid winding (CS) and Poloidal Field (PF) winding. The main goal of the project is to build a fusion engineering Tokamak reactor with its fusion power is 50–200 MW and should be self-sufficiency by blanket. In order to ensure the maintenance ports design and maintenance method, this article discussed the concept design of the magnet system based on different maintenance port cases. The paper detailed studied the magnet system of CFETR including the electromagnetic analysis and parameters for TF (CS)PF. Besides, the volt-seconds of ohmic field are presented as detailed as possible in this paper. In addition, the calculations and optimizations of equilibrium field which should guarantee the plasma discharge of single null shape is carried out. The design work reported here illustrates that the present maintenance ports will not have a great impact on the design of the magnet system. The concept design of the magnet system can meet the requirement of the physical target

  20. A Modelling Approach for Integrated Planning of Port Capacity- Trade-Offs in Rotterdam Investment Planning

    Directory of Open Access Journals (Sweden)

    Sander Dekker

    2006-03-01

    Full Text Available This paper presents a modelling approach for planning ofport capacity. The approach integrates port commercial andpublic interests. It further incorporates route competition andautonomous demand growth. It is applied to port expansion,which can be considered as a strategy for an individual port todeal with route competition. The basis for solving this planningproblem comprises an analysis of port demand and supply in apartial equilibrium model. With such an approach, the reactionof a single port on the change in a transport network comprisingalternative routes to a hinterland destination can be simulated.To establish the optimal expansion strategy, port expansion iscombined with congestion pricing. This is used for the simultaneousdetermination of 1 optimal expansion size, and 2 investmentrecovery period. The modelling approach will be appliedto Rotterdam port focusing on port expansion by means ofland reclamation. The scenmio of the entry of a new competingroute via the Italian port Gioia Tauro is used to address sometrade-offs in Rotterdam investment planning.

  1. A Novel Partial Discharge Ultra-High Frequency Signal De-Noising Method Based on a Single-Channel Blind Source Separation Algorithm

    Directory of Open Access Journals (Sweden)

    Liangliang Wei

    2018-02-01

    Full Text Available To effectively de-noise the Gaussian white noise and periodic narrow-band interference in the background noise of partial discharge ultra-high frequency (PD UHF signals in field tests, a novel de-noising method, based on a single-channel blind source separation algorithm, is proposed. Compared with traditional methods, the proposed method can effectively de-noise the noise interference, and the distortion of the de-noising PD signal is smaller. Firstly, the PD UHF signal is time-frequency analyzed by S-transform to obtain the number of source signals. Then, the single-channel detected PD signal is converted into multi-channel signals by singular value decomposition (SVD, and background noise is separated from multi-channel PD UHF signals by the joint approximate diagonalization of eigen-matrix method. At last, the source PD signal is estimated and recovered by the l1-norm minimization method. The proposed de-noising method was applied on the simulation test and field test detected signals, and the de-noising performance of the different methods was compared. The simulation and field test results demonstrate the effectiveness and correctness of the proposed method.

  2. Polychaete diversity and its relevance in the rapid environmental assessment of Mumbai Port

    Digital Repository Service at National Institute of Oceanography (India)

    Sukumaran, S.; SaralaDevi, K.

    by accidental spillages due to inadequate care in the handling cargo and also from port-related activities like dredging, frequent vessel movement, sewage releases and discharges from the industrial conglomerates established on both banks of the Thane Creek...

  3. Process optimization of CNP removal from industrial soft drink wastewater in a single up flow A2O with continuous feed and intermittent discharge regime.

    Science.gov (United States)

    Nouri, Amir; Zinatizadeh, Ali Akbar

    2018-03-01

    Simultaneous removal of carbon and nutrients (CNP) in a single laboratory-scale bioreactor is advantageous in terms of reactor volume and energy consumption. In this study, an innovative up-flow anaerobic/anoxic/aerobic (A2O) single bioreactor with continuous feed and intermittent discharge (CFID) regime equipped with a movable aerator in the reactor height for simultaneous removal of CNP from soft drinks wastewater was successfully designed, fabricated and operated. The effects of four independent variables, i.e. hydraulic retention time (HRT), aerator height, biomass concentration and nitrogen/soluble chemical oxygen demand (N/sCOD) ratio at three levels in the range of 4-8 h, 37-55.5 cm, 4,000-6,000 -1 , and 0.05-0.2, respectively, on eight process responses were investigated. The central composite design (CCD) and response surface methodology (RSM) were applied to design the experimental conditions, model the obtained data, and optimize the process. The bioreactor provides three conditions with different dissolved oxygen (DO) (anaerobic, anoxic and aerobic) in a single bioreactor by placing the aerator in the middle of the reactor. As a result, the maximum sCOD, total nitrogen (TN) and total phosphorus (TP) removal were about 100, 92 and 41%, respectively. The optimum region obtained was an HRT of 5-11 h, a mixed liquor suspended solids (MLSS) concentration of 4,000-4,700 mgL - 1 , and an aerator height of 46.25 cm, at the N/sCOD ratio of 0.1.

  4. An "all 5 mm ports" technique for laparoscopic day-case anti-reflux surgery: A consecutive case series of 205 patients.

    Science.gov (United States)

    Almond, L M; Charalampakis, V; Mistry, P; Naqvi, M; Hodson, J; Lafaurie, G; Matthews, J; Singhal, R; Super, P

    2016-11-01

    Laparoscopic anti-reflux surgery is conventionally performed using two 10/12 mm ports. While laparoscopic procedures reduce post-operative pain, the use of larger ports invariably increases discomfort and affects cosmesis. We describe a new all 5 mm ports technique for laparoscopic anti-reflux surgery and present a review of our initial experience with this approach. All patients undergoing laparoscopic fundoplication over a 35 month period from February 2013 under the care of a single surgeon were included. A Lind laparoscopic fundoplication was performed using an all 5 mm port technique. Data was recorded prospectively on patient demographics, operating surgeon, surgical time, date of discharge, readmissions, complications, need for re-intervention, and reasons for admission. Two hundred and five consecutive patients underwent laparoscopic fundoplication over the study period. The all 5 mm port technique was used in all cases, with conversion to a 12 mm port only once (0.49%). Median operating time was 52 min 185 (90.2%) patients were discharged as day cases. Increasing ASA grade and the presence of a hiatus hernia were associated with the need for overnight stay with admission required in 33% of patients with ASA 3, compared to 4% with ASA 1 (p = 0.001), and 29% of those with a hiatus hernia vs. 5% without (p management. This would improve the service for these patients and culminate in cost savings for the NHS. Copyright © 2016. Published by Elsevier Ltd.

  5. One, Two, or Three Ports in Laparoscopic Cholecystectomy?

    Science.gov (United States)

    Justo-Janeiro, Jaime Manuel; Vincent, Gustavo Theurel; Vázquez de Lara, Fernando; de la Rosa Paredes, René; Orozco, Eduardo Prado; Vázquez de Lara, Luis G.

    2014-01-01

    Single-port laparoscopic cholecystectomy (LC) has been compared with 3- or 4-port LC. To our knowledge, there are no studies comparing the 3-, 2-, and 1-port techniques. Patients were randomized into 3 groups: LC 1-port using SILS, LC 2-port using a laparoscope with a working channel, and LC 3-port using the standard ports. Pain was evaluated at recovery, 4 hours, 24 hours, day 5, and day 8, using an analog visual scale. Homogenous groups in their demographic characteristics; all confirmed gallbladder lithiasis. At recovery, there was less pain in group 1 (P = 0.002); at 4 hours pain was similar in all groups (P = 0.899); at 24 hours there was less pain in groups 2 and 3 (P = 0.031); and at days 5 and 8 there was marginal (P = 0.053) and significant (P = 0.003) relevance. In terms of pain perception, LC performed through 1 port does not offer advantages when compared with 2 or 3 ports. More clinical trials are needed to confirm these data. PMID:25437581

  6. HomePort

    DEFF Research Database (Denmark)

    Le Guilly, Thibaut; Olsen, Petur; Ravn, Anders Peter

    2013-01-01

    Ambient Intelligence systems use many sensors and actuators, with a diversity of networks, protocols and technologies which makes it impossible to access the devices in a common manner. This paper presents the HomePort software, which provides an open source RESTful interface to heterogeneous...... sensor networks, allowing a simple unified access to virtually any kind of protocol using well known standards. HomePort includes means to provide event notification, as well as a tracing mechanism. The software is implemented and we report on initial experiments and provide an evaluation that shows...

  7. Strategic port development

    DEFF Research Database (Denmark)

    Olesen, Peter Bjerg; Dukovska-Popovska, Iskra; Steger-Jensen, Kenn

    2012-01-01

    This paper proposes a framework for strategic development of a port’s collaboration with its hinterland. The framework is based on literature relevant to port development and undertakes market perspective by considering import/export data relevant for the region of interest. The series of steps...... proposed in the framework, provide ports with a systematic approach in finding possibilities for new business ventures and increasing integration with the hinterland. The framework is generic in its approach. A case study illustrates possible usage of the framework in terms of hinterland development....

  8. Port-wine stain

    Science.gov (United States)

    ... About MedlinePlus Show Search Search MedlinePlus GO GO About MedlinePlus Site Map FAQs Customer Support Health Topics Drugs & Supplements Videos & Tools Español You Are Here: Home → Medical Encyclopedia → Port-wine stain URL of this page: //medlineplus.gov/ency/ ...

  9. ROCKET PORT CLOSURE

    Science.gov (United States)

    Mattingly, J.T.

    1963-02-12

    This invention provides a simple pressure-actuated closure whereby windowless observation ports are opened to the atmosphere at preselected altitudes. The closure comprises a disk which seals a windowless observation port in rocket hull. An evacuated instrument compartment is affixed to the rocket hull adjacent the inner surface of the disk, while the outer disk surface is exposed to the atmosphere through which the rocket is traveling. The pressure differential between the evacuated instrument compartment and the relatively high pressure external atmosphere forces the disk against the edge of the observation port, thereby effecting a tight seai. The instrument compartment is evacuated to a pressure equal to the atmospheric pressure existing at the altitude at which it is desiretl that the closure should open. When the rocket reaches this preselected altitude, the inwardly directed atmospheric force on the disk is just equaled by the residual air pressure force within the instrument compartment. Consequently, the closure disk falls away and uncovers the open observation port. The separation of the disk from the rocket hull actuates a switch which energizes the mechanism of a detecting instrument disposed within the instrument compartment. (AE C)

  10. Oluvil Port Development Project

    DEFF Research Database (Denmark)

    Frigaard, Peter; Margheritini, Lucia

    Oluvil Port Development Project is the first development of a large port infrastructure in the entire eastern coastline of Sri Lanka. The project is supported by the Danish Foreign Ministry. Feasibility studies and detailed design studies were carried out by Lanka Hydraulic Institute Ltd during t...... by LHI (Lanka Hydraulic Institute Ltd), June 2011 describes calculation of erosion and sediment transport under some proposed coastal protection scenario....... the years 1995 to 2003. The design was reviewed by COWI a/s. Construction of the port was started in 2008. MT Højgaard a/s acted as contractor. The outer breakwaters were constructed as first part of the project. During and after completion of the breakwaters a serious beach erosion and sand accumulation...... has been observed. Severe erosion is seen north of the harbour and some accumulation of sand is seen south of the harbour. On a sandy coastline like the one in Oluvil such erosion problems as observed are very typical. The report: Oluvil Port Development Project: Studies on Beach Erosion written...

  11. NIPPLE DISCHARGE

    Directory of Open Access Journals (Sweden)

    T. N. Bukharova

    2008-01-01

    Full Text Available According to the data available in the literature, as high as 50% of women have benign breast tumors frequently accompanied by nip- ple discharge. Nipple discharge may be serous, bloody, purulent, and colostric. The most common causes are breast abscess, injury, drugs, prolactinoma, intraductal pappiloma, ductal ectasia, intraductal cancer (not more than 10%.

  12. Green Port / Eco Port Project - Applications and Procedures in Turkey

    Science.gov (United States)

    Akgul, Burak

    2017-12-01

    As being the heartlands of international trade, sea ports are the junction points of land and sea routes. The growth of global trade has led to the development of number and capacity as well as the service quality of ports. The policies and procedures applied during construction, operation and development of ports under development with environmental considerations scope has evolved in accordance with the needs of global trends. Although maritime transportation provides the most ecofriendly transportation method, the reduction of potential environmental threats and continuous improvement of ports and their vicinity is paramount from environmental concerns with regards to the international environmental standards. In the context of the study, national and international legal regulations governing the control of the environmental impacts of the activity groups causing pollution in Turkey based sea ports were viewed. In addition, the models applied during the measurement and documentation of environmental impacts were investigated. The most important aspects in terms of the effectiveness of the environmental management models are legal regulations. However, the standards applied at the ports without any legal obligation, such as EcoPorts applications, ISO 14001 standard, and the EMAS (Eco-Management and Audit Scheme) were sought in the scope of the study. The boundaries of the study were determined as the EU based Environmental Management Systems and the Green Port/Eco Port Project which is being administered by the Turkish Ministry of Transport, Maritime and Communication. “Marport”, which is Turkey’s first certified Green Port / Eco Port is designated as the experimental study site. In addition, the provisions in the ports of ESPO member countries are approached in order to compare the effectiveness and applicability of Green Port / Eco Port Project.

  13. Port Card Module

    International Nuclear Information System (INIS)

    Utes, M.

    1994-01-01

    The Port Card will be one link in the data acquisition system for the D0 Silicon Vertex Detector. This system consists of the following parts, starting at the detector: Silicon strip detectors are mounted in a spaceframe and wire-bonded to custom bare-die integrated circuits (SVX-II chips) that digitize the charge collected by the strips. The 128-channel chips are mounted on a High-Density Interconnect (HDI) that consists of a small flex circuit that routes control signals and eight data bits for each of three to ten chips onto a common data bus. A cable then routes this bus approximately thirty feet out from the detector to the Port Card. The Port Card houses a commercial chipset that serializes the data in real time and converts the signal into laser light impulses that are then transmitted through a multi-mode optical fiber about 150 feet to a Silicon Acquisition and Readout board (SAR). Here, the data is transformed back to parallel electrical signals that are stored in one of several banks of FIFO memories. The FIFOs place their data onto the VME backplane to a VME Buffer Driver (VBD) which stores the event data in buffers for eventual readout over a thirty-two signal ribbon cable to the Level Two Computers and subsequent tape storage. Control and sequencing of the whole operation starts with the Silicon Acquisition/Readout Controller (SARC) working in tandem with the D0 Clock System. The SARC resides in the same VME crate as the SARs, and transforms signals from the Trigger System into control codes distributed to the various Port Cards via optical fibers operating at 53 Mb/s. It is through these control codes that data taking operations such as data-acquisition, digitization, readout, and various resets can be carried out. The Port Card receives the control codes and manipulates the SVX-II chips in the proper way to effect proper data taking. There will be a total of about 700,000 channels, which translates into about 5580 SVX-II chips, 66 to 100 Port Cards

  14. Two-port cholecystectomy maintains safety and feasibility in benign gallbladder diseases: a comparative study.

    Science.gov (United States)

    Lee, Sang Chul; Choi, Byeong-Jo; Kim, Say-June

    2014-01-01

    In an effort to overcome the limitations of single-port laparoscopic cholecystectomy (LC) while preserving the cosmetic benefits of reduced ports cholecystectomy, we have developed a 2-port LC that allows for the full, unrestricted use of 4 laparoscopic instruments. We retrospectively analyzed data of patients who had undergone either 4-port LC or 2-port LC for benign gallbladder diseases between March 2007 and March 2013. Two incisions of 2-port LC were composed of an umbilical incision as the manner of single-port laparoscopic surgery and a 5-mm epigastric incision. These two incisions were utilized for comfortable bimanual manipulation under the liver-elevated vision provided by a liver retractor. During the study period, 766 patients underwent LC; 263 (34.3%) started with 4-port LC, and 503 (65.7%) started with 2-port LC. Of patients started with 2-port LC, 486 patients (96.6%) was ended up with 2-port without open conversion or addition of port(s). The two groups had similar operative time, open conversion rate, incidence of complications, analgesic requirement, and length of postoperative hospital stay. Multivariate analyses revealed that the independent factors related to prolonged operative time (≥ 90 th percentile) in 2-port LC were the presence of cholecystitis (odds ratio [OR] 2.412, 95% CI 1.246-4.668, p = 0.009) and admission through the emergency department (OR 2.132, 95% CI 1.135-4.004, p = 0.019). This study suggests that 2-port LC for benign gallbladder diseases is as safe and feasible as 4-port LC when it is performed by surgeons trained in conventional laparoscopic techniques. Copyright © 2014 Surgical Associates Ltd. Published by Elsevier Ltd. All rights reserved.

  15. Ileostomy - discharge

    Science.gov (United States)

    ... dried fruits (such as raisins), mushrooms, chunky relishes, coconut, and some Chinese vegetables. Tips for when no ... ask your doctor Living with your ileostomy Low-fiber diet Small bowel resection - discharge Total colectomy or ...

  16. Port Security Strategy 2012

    Science.gov (United States)

    2007-06-15

    incidents and events. The cognitive thinking and behavior of humans could be influenced by psychological operation. The emotions, motives, objective...to emulate dolphin sonar and incorporate search strategies that are specifically effective in the noisy near-shore environment. This is to emulate...Animals can be also trained to aid port security on different dimensions. Trained sea lions and dolphins are able to locate underwater divers

  17. A three-port direct current converter

    DEFF Research Database (Denmark)

    2016-01-01

    The three-port direct current converter comprising: at least one input direct current source; at least one storage battery; a primary side circuit; a secondary side circuit; a first single magnetic component shared by the primary side circuit and the secondary side circuit, wherein the primary side...... circuit comprises a connection between the at least one input direct current source and the at least one storage battery, the primary side circuit configured for operating as a buck converter; a second magnetic component serially coupled to the first single magnetic component, wherein the first and second...... magnetic components are configured to perform a voltage step-up, wherein the secondary side circuit comprises a connection between the at least one storage battery and at least one load, the secondary side configured for operating as a tapped boost converter; wherein the three-port direct current converter...

  18. Single Photon Ionization Mass Spectroscopy of Hydrogen Bonded and van der Waals Cluster Systems Using a Capillary Discharge Soft X-Ray Laser

    Science.gov (United States)

    Heinbuch, S.; Dong, F.; Bernstein, E. R.; Rocca, J. J.

    We report the first use of a soft x-ray laser in photochemistry studies. A 46.9 nm capillary discharge soft x-ray laser was used to study hydrogen bonded and van der Waals cluster systems. The study of van der Waals cluster formation and growth in the gas phase can contribute to the understanding of solvation processes, solvation dynamics, and the nucleation and growth of small clusters. The comparative investigation of water, methanol, and ammonia clusters is of importance because these clusters demonstrate a wide range of van der Waals interactions and hydrogen bonding: water clusters are very strongly and dominantly hydrogen bonded; methanol clusters somewhat less so; and ammonia clusters perhaps not at all. Sulfur dioxide is the major contributor to acid rain and a generator of soot. The process of SO2 and water forming acid rain has been studied for some time in order to determine the atmospheric mechanism for this environmental issue. Carbon dioxide is the major gas phase pollutant responsible for the "green house effect" of the atmosphere. Many experiments employing supersonic expansion coupled with mass spectroscopic detection have been conducted in order to study monomeric and clustered structure and behavior of each of these systems. Spectroscopic and photochemical properties of the systems should be related to cluster structure. However, one of the most serious problems in the investigation of the distribution of neutral hydrogen-bonded and van der Waals clusters is the fragmentation or the intra-cluster ion-molecule reactions to the protonated cluster ions. Electron Impact (EI) ionization usually suffers considerably from fragmentation of parent cluster ions on account of the large excess energies during the ionization process. Multiphoton ionization (MPI) processes result in the predissociation of the neutral clusters before ionization. Single photon ionization is a more "gentle" way to study hydrogen-bonded and Van der Waals clusters since less

  19. General characteristics of current in front of Port Said, Egypt

    Directory of Open Access Journals (Sweden)

    Mohamed S. Elsharkawy

    2017-06-01

    Full Text Available This paper is a preliminary investigation of the general characteristics of the current in front of the coastal Mediterranean city: Port Said, Egypt. The study of the current regime in front of Port Said helps environmental engineers to tackle problems as marine port sedimentation and shoreline changes. Surface and bottom current recordings at a single offshore station of depth 104 m located at 31° 34.90′ N, 32° 30.01′ E have been subject to statistical analysis. The measurements showed unexpectedly that bottom currents were relatively stronger than surface currents during May-99.

  20. U.S. port commerce in radioactive materials

    International Nuclear Information System (INIS)

    Marti, B.E.

    1987-01-01

    Much attention has focused on the movement of radioactive materials over land transport systems. On the other hand, maritime flow and associated throughput studies of such substances have been neglected. Although several peaks and troughs are evident between 1972 and 1981, radioactive tonnage moving through U.S. port facilities steadily increasing. In the ten-year period assessed, total radioactive materials handled at U.S. ports expanded by over 19,000 tons, which amounts to almost a 173 percent growth rate. The purpose of this exploratory research is threefold. First, it identifies all U.S. ports which were involved in loading or discharging radioactive materials. The major goal of the identification process is to broaden public awareness of these types of movement. Second, it classifies U.S. seaports based on the magnitude of radioactive tonnage handled. The function of the classification is to impose some order on the varied data, while at the same time categorizing large, medium, and small facilities. Finally, it seeks to verify whether or not a long term trend exists. The objective of the verification process is to ascertain if the distribution of radioactive materials handled at individual ports has remained constant. Port safety and contingency planning are clearly within the purview of coastal zone management. The results of this preliminary research should form a foundation for future studies which compare and evaluate local, state, and federal regulatory policy pertaining to port operations involving radioactive materials, including waste

  1. ITER Port Interspace Pressure Calculations

    Energy Technology Data Exchange (ETDEWEB)

    Carbajo, Juan J [ORNL; Van Hove, Walter A [ORNL

    2016-01-01

    The ITER Vacuum Vessel (VV) is equipped with 54 access ports. Each of these ports has an opening in the bioshield that communicates with a dedicated port cell. During Tokamak operation, the bioshield opening must be closed with a concrete plug to shield the radiation coming from the plasma. This port plug separates the port cell into a Port Interspace (between VV closure lid and Port Plug) on the inner side and the Port Cell on the outer side. This paper presents calculations of pressures and temperatures in the ITER (Ref. 1) Port Interspace after a double-ended guillotine break (DEGB) of a pipe of the Tokamak Cooling Water System (TCWS) with high temperature water. It is assumed that this DEGB occurs during the worst possible conditions, which are during water baking operation, with water at a temperature of 523 K (250 C) and at a pressure of 4.4 MPa. These conditions are more severe than during normal Tokamak operation, with the water at 398 K (125 C) and 2 MPa. Two computer codes are employed in these calculations: RELAP5-3D Version 4.2.1 (Ref. 2) to calculate the blowdown releases from the pipe break, and MELCOR, Version 1.8.6 (Ref. 3) to calculate the pressures and temperatures in the Port Interspace. A sensitivity study has been performed to optimize some flow areas.

  2. Bacteriology of chronic discharging ears in Port Harcourt, Nigeria

    African Journals Online (AJOL)

    the most common reason for out-patient antibiotic therapy in children."2 There also is great concern with regards to the social burden and indirect cost due to time lost from school work.3 Knowledge of which micro organisms are the most common pathogens in acute otitis media (AOM) and/0r chronic suppurative otitis media ...

  3. Integrated MRSA-Management (IMM with prolonged decolonization treatment after hospital discharge is effective: a single centre, non-randomised open-label trial

    Directory of Open Access Journals (Sweden)

    Bernhard Jahn

    2016-06-01

    Full Text Available Abstract Background Guidelines for the control of hospital-acquired MRSA include decolonization measures to end MRSA carrier status in colonized and infected patients. Successful decolonization typically requires up to 22 days of treatment, which is longer than the average hospital length of stay (LOS. Incomplete decolonization is therefore common, with long-term MRSA carriage as a consequence. To overcome this, we developed an integrated MRSA Management (IMM by extending MRSA decolonization to the outpatient and domestic setting. The protocol makes use of polyhexanide-based products, in view of reported qac-mediated resistance to chlorhexidine in S. aureus and MRSA. Methods This is a prospective, single centre, controlled, non-randomized, open-label study to evaluate the efficiency of the IMM concept. The outcome of guideline-approved decolonization during hospital stay only (control group; n = 201 was compared to the outcome following IMM treatment whereby decolonization was continued after discharge in the domestic setting or in a long-term care facility (study group; n = 99. As a secondary outcome, the effect of MRSA-status of skin alterations was assessed. Results The overall decolonization rate was 47 % in the IMM patient group compared to 12 % in the control group (p  0.05. For patients with skin alterations (e.g. wounds and entry sites, decolonization success was 50 % if the skin alterations were MRSA-negative at baseline, compared to 22 % success for patients entering the study with MRSA-positive skin alterations (p < 0.01. Conclusions The IMM strategy offers an MRSA decolonization protocol that is feasible in the domestic setting and is equally effective compared with inpatient decolonization treatment when hospital LOS is long enough to complete the treatment. Moreover, for patients with average LOS, decolonization rates obtained with IMM are significantly higher than for in-hospital treatment. IMM is a promising

  4. Esophagectomy - discharge

    Science.gov (United States)

    ... 000241.htm Esophagectomy - discharge To use the sharing features on this page, please enable JavaScript. You had ... up or down stairs, or ride in a car. Be sure to rest after being active. If it hurts when ... In the bathroom , install safety bars to help you get in and out ...

  5. Mastectomy - discharge

    Science.gov (United States)

    ... had breast reconstruction surgery with implants or natural tissue . What to Expect at Home Full recovery may take ... lump removal Breast reconstruction - implants Breast reconstruction - natural ... breast surgery - discharge Mastectomy and breast reconstruction - what to ask your doctor Wet-to-dry dressing ...

  6. Optical and electrical characteristics of a single surface DBD micro-discharge produced in atmospheric-pressure nitrogen and synthetic air

    Czech Academy of Sciences Publication Activity Database

    Šimek, Milan; Prukner, Václav; Schmidt, Jiří

    2011-01-01

    Roč. 20, č. 2 (2011), 025009-025009 ISSN 0963-0252. [European Sectional Conference on Atomic and Molecular Physics of Ionized Gases (ESCAMPIGXX)/20th./. Novi Sad, SERBIA, 13.07.2010-17.07.2010] R&D Projects: GA ČR GA202/08/1106 Institutional research plan: CEZ:AV0Z20430508 Keywords : surface barier discharge * streamer Subject RIV: BL - Plasma and Gas Discharge Physics Impact factor: 2.521, year: 2011 http://iopscience.iop.org/0963-0252/20/2/025009/pdf/0963-0252_20_2_025009.pdf

  7. ICCD microscopic imaging of a single micro-discharge in surface coplanar DBD geometry: determination of the luminous diameter of N-2 and Ar streamers

    Czech Academy of Sciences Publication Activity Database

    Šimek, Milan; Ambrico, P. F.; Prukner, Václav

    2011-01-01

    Roč. 20, č. 2 (2011), 025010-025010 ISSN 0963-0252. [European Sectional Conference on Atomic and Molecular Physics of Ionized Gases (ESCAMPIGXX)/20th./. Novi Sad, SERBIA, 13.07.2010-17.07.2010] R&D Projects: GA ČR GA202/08/1106 Institutional research plan: CEZ:AV0Z20430508 Keywords : surface barier discharge * streamer * imaging Subject RIV: BL - Plasma and Gas Discharge Physics Impact factor: 2.521, year: 2011 http://iopscience.iop.org/0963-0252/20/2/025010/pdf/0963-0252_20_2_025010.pdf

  8. The VFAT3-Comm-Port: a complete communication port for front-end ASICs intended for use within the high luminosity radiation environments of the LHC

    International Nuclear Information System (INIS)

    Dabrowski, M.; Aspell, P.; Bonacini, S.; Ciaglia, D.; Kloukinas, K.; Lentdecker, G. De; Robertis, G. De; Kupiainen, M.; Talvitie, J.; Tuuva, T.; Leroux, P.; Tavernier, F.

    2015-01-01

    This paper presents the VFAT3 Comm-Port (V3CP), which offers a single port for all communication to and from a front-end ASIC within the HL-LHC environment. This includes synchronization to the LHC clock, slow control communication, the execution of fast control commands and the readout of data

  9. Log exports by port, 1987.

    Science.gov (United States)

    Debra D. Warren

    1989-01-01

    Volumes and average values of log exports by port have been compiled by quarter for 1987. The tables show the four Northwest customs districts by ports, species, and destinations. These data were received from the U.S. Department of Commerce too late to be published in the 1987 quarterly reports, "Production, Prices, Employment, and Trade in Northwest Forest...

  10. Container Traffic In European Ports

    Directory of Open Access Journals (Sweden)

    Elen Twrdy

    2004-03-01

    Full Text Available Over the last fifteen years the European transport markethas witnessed a growth of container traffic which today reachesapproximately 50 million TEU per year. From 1997 to 2002,container traffic in the northern European ports increased from14 to 20.6 million TEU per year, in the ports of the westernMedite"anean from 6 to 10 million TEU per year, and in thenorthern Adriatic ports from 0. 69 to 0. 74 million TEU per year.The ports of the northern Adriatic are located in three states(Slovenia, Croatia and Italy with different statuses in relationto the common European market. In addition, different developmentlevels of these states are reflected in different levels ofinternational commercial exchange, the development of the existinginfrastructure and plans for the construction of new infrastructures.However, all three countries share a common goaltoincrease their competitiveness in comparison with the westemEuropean ports.

  11. Radiological discharges

    International Nuclear Information System (INIS)

    Woodliffe, J.

    1990-01-01

    Current practice of North Sea States on the discharge and disposal of liquid radioactive wastes to the North Sea are based on the declaration issued at the Second International Conference on the Protection of the North Sea, known as the London Declaration. This has three main points the first of which emphasises the application of the Best Available Technology to protect the North Sea, the second provides a framework on which future controls on radioactive discharges should be based. The third identifies two parts of the framework; to take into account the recommendations of international organizations and that any repositories of radioactive waste which are built should not pollute the North Sea. This chapter looks at how the concensus based on the London Declaration is working, gauges the progress made in the implementation of the policy goal, identifies existing and future areas for concern and proposes ways of strengthening the control of radioactive discharges. The emphasis is on the United Kingdom practice and regulations for liquid wastes, most of which comes from the Sellafield Reprocessing Plant. (author)

  12. Concerning background from calorimeter ports

    International Nuclear Information System (INIS)

    Digiacomo, N.J.

    1985-01-01

    Any detector system viewing a port or slit in a calorimeter wall will see, in addition to the primary particles of interest, a background of charged and neutral particles and photons generated by scattering from the port walls and by leakage from incompletely contained primary particle showers in the calorimeter near the port. The signal to noise ratio attainable outside the port is a complex function of the primary source spectrum, the calorimeter and port design and, of course, the nature and acceptance of the detector system that views the port. Rather than making general statements about the overall suitability (or lack thereof) of calorimeter ports, we offer here a specific example based on the external spectrometer and slit of the NA34 experiment. This combination of slit and spectrometer is designed for fixed-target work, so that the primary particle momentum spectrum contains higher momentum particles than expected in a heavy ion colliding beam environment. The results are, nevertheless, quite relevant for the collider case

  13. Discharge Dialogue

    DEFF Research Database (Denmark)

    Horsbøl, Anders

    2012-01-01

    less attention has been given to medical patients, who are often elderly and suffer from multiple diseases. This paper addresses the latter issue with a case study of a local initiative to improve transition from hospital to home (care) for medical patients at a Danish hospital, in which a discharge......For several years, efforts have been made to strengthen collaboration between health professionals with different specializations and to improve patient transition from hospital to home (care). In the Danish health care system, these efforts have concentrated on cancer and heart diseases, whereas...

  14. 360 degree port MDA - a strategy to improve port security

    OpenAIRE

    Leary, Timothy P.

    2006-01-01

    CHDS State/Local Our national security and prosperity depend in part on secure and competitive ports. Effective public and private sector collaboration is needed in a world with myriad security challenges and fierce global competition. Although steps have been taken in the years since 9/11 to realize these twin goals, much more needs to be done. The current maritime domain awareness (MDA) paradigm needs to be expanded to provide comprehensive awareness of intermodal operations in our ports...

  15. Dual-port distal gastrectomy for the early gastric cancer.

    Science.gov (United States)

    Kashiwagi, Hiroyuki; Kumagai, Kenta; Monma, Eiji; Nozue, Mutsumi

    2015-06-01

    Although recent trends in laparoscopic procedures have been toward minimizing the number of incisions, four or five ports are normally required to complete laparoscopic gastrectomy because of the complexity of this procedure. Multi-channel ports, such as the SILS port (Covidien, JAPAN), are now available and are crucial for performing single-incision laparoscopic surgery (SILS) or reduced port surgery (RPS). We carried out reduced port distal gastrectomy (RPDG) using a dual-port method with a SILS port. Ten patients who were diagnosed as early stage gastric cancer were offered the RPDG. Mean age and body mass index (BMI) were 68.1 and 21.4, respectively. No distant metastasis or regional lymph node swelling was seen in any case. A 5-mm flexible scope (Olympus, JAPAN) and SILS port were used and a nylon ligature with a straight needle, instead of a surgical instrument, was available to raise the gastric wall. The average operative time was 266.9 ± 38.3 min and blood loss was 37.8 ± 56.8 ml. Patients recovered well and experienced no complications after surgery. All patients could tolerate soft meals on the first day after surgery and the average hospital stay was 8.1 days. Past conventional LAG cases were evaluated to compare the short-term outcome and no difference was seen in the mean operative time or operative blood loss. The length of hospital stay after surgery was shorter for the RPDG group than the conventional operation group (p < 0.0001). Interestingly, the trend of serum CRP elevation after surgery was lower in the RPDG group than the conventional LAG group (p = 0.053). Although the benefits of RPS have not been established, this type of surgery may be expected to have some advantages. Cosmetic benefits and shorter hospital stays are clear advantages. Less invasiveness can be expected according to the trend of serum CRP elevation after RPDG.

  16. Influence of a single lightning discharge on the intensity of an air electric field and acoustic emission of near-surface rocks

    Directory of Open Access Journals (Sweden)

    S. E. Smirnov

    2012-10-01

    Full Text Available The effect was observed as a sharp fall of the electric potential gradient from +80 V m−1 down to –21 V m−1. After that the field returned to its normal level according to the formula of the capacitor discharge with 17 s characteristic time. Simultaneously, the response of the acoustic emission of surface rocks in the range of frequencies between 6.5 kHz and 11 kHz was evaluated.

  17. The two-stroke poppet valve engine. Part 1: Intake and exhaust ports flow experimental assessments

    Science.gov (United States)

    Kamili Zahidi, M.; Razali Hanipah, M.; Ramasamy, D.; Noor, M. M.; Kadirgama, K.; Rahman, M. M.

    2017-10-01

    A two-stroke poppet valve engine is developed to overcome the common problems in conventional two-stroke engine designs. However, replacing piston control port with poppet valve will resulted different flow behaviour. This paper is looking at experimental assessment on a two-stroke poppet valve engine configuration to investigate the port flow performance. The aims are to evaluate the intake and exhaust coefficient of discharge and assess the twostroke capability of the cylinder head. The results has shown comparable coefficient of discharge values as production engine for the intake while the exhaust has higher values which is favourable for the two-stroke cycle operation.

  18. Lung surgery - discharge

    Science.gov (United States)

    ... Lung biopsy - discharge; Thoracoscopy - discharge; Video-assisted thoracoscopic surgery - discharge; VATS - discharge ... milk) for 2 weeks after video-assisted thoracoscopic surgery and 6 to 8 weeks after open surgery. ...

  19. Hysterectomy - vaginal - discharge

    Science.gov (United States)

    Vaginal hysterectomy - discharge; Laparoscopically assisted vaginal hysterectomy - discharge; LAVH - discharge ... you are unable to urinate. You have a discharge from your vagina that has a bad odor. You have bleeding ...

  20. Pediatric heart surgery - discharge

    Science.gov (United States)

    ... discharge; Heart valve surgery - children - discharge; Heart surgery - pediatric - discharge; Heart transplant - pediatric - discharge ... Geme JW, Schor NF, eds. Nelson Textbook of Pediatrics . 20th ed. Philadelphia, PA: Elsevier; 2016:chap 434. ...

  1. Hip replacement - discharge

    Science.gov (United States)

    ... discharge; Total hip replacement - discharge; Hip hemiarthroplasty - discharge; Osteoarthritis - hip replacement discharge ... such as downhill skiing or contact sports like football and soccer. But you should be able to ...

  2. Developing the port of Belawan as a modern and international port

    Science.gov (United States)

    Many, N.

    2018-03-01

    This study discusses the processes of government to pass the port development plan in Indonesia with the Port of Belawan and its port expansion as the study case. The study uses a descriptive approach by reviewing and analyzing some of relevant literature as the sources. It also reviews and examines the port development theoretical concepts and models giving attention to the international hub port models resulted from the previous studies. The international hub port aspects assessed to be further applied and compared to the actual situation of the Port of Belawan. This process draws the conclusion on which concept and model the port classified, followed by some recommendations concerning the necessary actions to be taken. The results show that: (1) The port planning regulated in port master plan is the guideline and foundation to implement the port development; (2) Spatial and zoning plan regulations are very important in the preparation, planning, and implementation of port development; (3) It has not provided the necessary facilities and criteria of the global hub port model has not been met completely. The port is strategic to be completely developed as the regional hub port to compete with the major ports of neighboring countries. Eventually, this study requires further analysis to examine the economic feasibility of the Port of Belawan in more comprehensive way functioning as an international hub port along with the ongoing development of Kuala Tanjung Port to achieve its ultimate objectives, among other things, the port effectiveness, efficiency, and competitiveness.

  3. The Revealed Competitiveness of Major Ports in the East Asian Region: An Additive Market Share Analysis

    Directory of Open Access Journals (Sweden)

    Tae Seung Kim

    2015-12-01

    Full Text Available In the single cargo market, the ordinary market share analysis method has been the representative tool for revealed competitiveness analysis. This paper develops and employs an applied market share index called the additive market share (AMS. Data are collected from 15 major container ports for the 1998-2013 period. In comparison to the results of an ordinary market share analysis, the highest AMS is observed for the Bohai Rim port cluster from 2008, not for the Yangtze River cluster or the Pearl River cluster. There are substitutable relationships between Yangtze River and non-Chinese ports and between Pearl River and Bohai Rim ports from 2001. Finally, there is an internal competition at Pearl River and Yangtze River ports, whereas Bohai Rim and non-Chinese ports show internally complementary relationships.

  4. Deviation from Boltzmann distribution in excited energy levels of singly-ionized iron in an argon glow discharge plasma for atomic emission spectrometry

    Energy Technology Data Exchange (ETDEWEB)

    Zhang Lei; Kashiwakura, Shunsuke; Wagatsuma, Kazuaki, E-mail: wagatuma@imr.tohoku.ac.jp

    2012-01-15

    A Boltzmann plot for many iron ionic lines having excitation energies of 4.7-9.1 eV was investigated in an argon glow discharge plasma when the discharge parameters, such as the voltage/current and the gas pressure, were varied. A Grimm-style radiation source was employed in a DC voltage range of 400-800 V at argon pressures of 400-930 Pa. The plot did not follow a linear relationship over a wide range of the excitation energy, but it yielded a normal Boltzmann distribution in the range of 4.7-5.8 eV and a large overpopulation in higher-lying excitation levels of iron ion. A probable reason for this phenomenon is that excitations for higher excited energy levels of iron ion would be predominantly caused by non-thermal collisions with argon species, the internal energy of which is received by iron atoms for the ionization. Particular intense ionic lines, which gave a maximum peak of the Boltzmann plot, were observed at an excitation energy of ca. 7.7 eV. They were the Fe II 257.297-nm and the Fe II 258.111-nm lines, derived from the 3d{sup 5}4s4p {sup 6}P excited levels. The 3d{sup 5}4s4p {sup 6}P excited levels can be highly populated through a resonance charge transfer from the ground state of argon ion, because of good matching in the excitation energy as well as the conservation of the total spin before and after the collision. An enhancement factor of the emission intensity for various Fe II lines could be obtained from a deviation from the normal Boltzmann plot, which comprised the emission lines of 4.7-5.8 eV. It would roughly correspond to a contribution of the charge transfer excitation to the excited levels of iron ion, suggesting that the charge-transfer collision could elevate the number density of the corresponding excited levels by a factor of ca.10{sup 4}. The Boltzmann plots give important information on the reason why a variety of iron ionic lines can be emitted from glow discharge plasmas.

  5. Adaptive port-starboard beamforming of triplet arrays

    NARCIS (Netherlands)

    Beerens, S.P.; Been, R.; Groen, J.; Noutary, E.; Doisy, Y.

    2000-01-01

    Triplet arrays are single line arrays with three hydrophones on a circular section of the array. The triplet structure provides immediate port-starboard (PS) discrimination. This paper discusses the theoretical and experimental performance of triplet arrays. Results are obtained on detection gain

  6. Four-port gas separation membrane module assembly

    Science.gov (United States)

    Wynn, Nicholas P.; Fulton, Donald A.; Lokhandwala, Kaaeid A.; Kaschemekat, Jurgen

    2010-07-20

    A gas-separation membrane assembly, and a gas-separation process using the assembly. The assembly incorporates multiple gas-separation membranes in an array within a single vessel or housing, and is equipped with two permeate ports, enabling permeate gas to be withdrawn from both ends of the membrane module permeate pipes.

  7. Regional Port Productivity in APEC

    Directory of Open Access Journals (Sweden)

    Yen-Chun Jim Wu

    2016-07-01

    Full Text Available The regional growth of the goods and services trade has placed greater pressure on the ports of the Asia-Pacific Economic Cooperation (APEC members, especially in the developing countries. The purpose of this study is to apply the generalized metafrontier Malmquist productivity index (gMMPI to compare the port productivity of developed countries (DCs and developing countries (LDCs in APEC. The results indicate that, first, the average rate of utilized capacity among the ports of APEC members was only 65.7% during 2002–2011, which means that another 34.3% of additional through put can be handled with the same level of resources. Second, the average productivity of the container ports in the DCs appeared to be higher than those located in the LDCs. The main sources of productive growth in the DCs were based on scale efficiency change (SEC, technical efficiency change (TEC, and potential technological relative change (PTRC, while the main source of productive growth in LDCs was based on SEC. Third, SEC appeared to be the dominant factor that affects the utilization of all ports.

  8. Cooperation Performance Evaluation between Seaport and Dry Port; Case of Qingdao Port and Xi'an Port

    Directory of Open Access Journals (Sweden)

    Jian Li

    2014-12-01

    Full Text Available Along with the drastic competition among ports, the strive for the vast economic hinterland and the supply of goods have become strategic problems for port operators. At the same time, port enterprises are paying more and more attention to the construction of dry ports. This article establishes the port cooperation performance evaluation index based on the balanced score card method and uses the grey relational degree method to evaluate the cooperation performance between seaports and dry ports. Finally using Qingdao port and Xi'an port as an example, and Zhengzhou port and Lanzhou port as benchmarks, the application of this evaluation method is introduced in detail. The conclusion reveals that cooperation between Qingdao port and Xi'an port has deficiencies in customer satisfaction, financial cooperation and non-market tools. Alongside this, the author proposes related issues about information management in the supply chain, competition position and the scope of hinterland. This article, combined with the related theory of supply chain and performance evaluation, puts forward a set of relatively complete cooperation performance evaluations between seaports and dry ports, which provide scientific theory support for better cooperation.

  9. A Chip of Counter and Parallel Interface Port Using FPGA

    International Nuclear Information System (INIS)

    Setyadi WS; Dewita Triyono

    2002-01-01

    A chip contained two 16 bit counters and parallel interface port has been constructed by using Field Programmable Gate Array (FPGA) made by Altera. One of the aim of this activity was to replace the interfacing card which were using Programmable Logic Device (PLD) and others supporting components placed on personal computer expansion slot ISA or EISA, with a compatible Chip. The result was a 44 pin Chip with a single 5 V supply. The experiment test showed that the input output ports were working properly. The Simulation timing showed suitably as the requirement. The Chip was designed for the instruments which needed a counter, timer and connected to the computer as data acquisition and control. The advantage of this Chip was the compatibility of the pin parallel port standard, it can be connected with any computers type. (author)

  10. Single-incision, laparoscopic-assisted jejunal resection and anastomosis following a gunshot wound.

    Science.gov (United States)

    Rubin, Jacob A; Shigemoto, Reynsen; Reese, David J; Case, J Brad

    2015-01-01

    A 2 yr old castrated male Pomeranian was evaluated for a 6 wk history of chronic vomiting, intermittent anorexia, and lethargy. Physical examination revealed a palpable, nonpainful, soft-tissue mass in the midabdominal area. Abdominal radiographs and ultrasound revealed a focal, eccentric thickening of the jejunal wall with associated jejunal mural foreign body and partial mechanical obstruction. Following diagnosis of a partial intestinal obstruction as the cause of chronic vomiting, the patient underwent general anesthesia for a laparoscopic-assisted, midjejunal resection and anastomosis using a single-incision laparoscopic surgery port. The patient was discharged the day after surgery, and clinical signs abated according to information obtained during a telephone interview conducted 2 and 8 wk postoperatively. The dog described in this report is a unique case of partial intestinal obstruction treated by laparoscopic-assisted resection and anastomosis using a single-incision laparoscopic surgery port.

  11. Four-port mode-selective silicon optical router for on-chip optical interconnect.

    Science.gov (United States)

    Jia, Hao; Zhou, Ting; Fu, Xin; Ding, Jianfeng; Zhang, Lei; Yang, Lin

    2018-04-16

    We propose and demonstrate a four-port mode-selective optical router on a silicon-on-insulator platform. The passive routing property ensures that the router consumes no power to establish the optical links. For each port, input signals with different modes are selectively routed to the target ports through the pre-designed architecture. In general, the device intrinsically supports broadcasting of multiplexed signals from one port to the other three ports through mode division multiplexing. In some applications, the input signal from one port would only be sent to another port as in reconfigurable optical routers. The prototype is constructed by mode multiplexers/de-multiplexers and single-mode interconnect waveguides between them. The insertion losses for all optical links are lower than 8.0 dB, and the largest optical crosstalk values are lower than -18.7 dB and -22.0 dB for the broadcasting and port-to-port routing modes, respectively, at the wavelength range of 1525-1565 nm. In order to verify the routing functionality, a 40-Gbps bidirectional data transmission experiment is performed. The device offers a promising building block for passive routing by utilizing the dimension of the modes.

  12. Effectively reducing emissions from ports

    Energy Technology Data Exchange (ETDEWEB)

    Fazlagic, Ismir; Martelin, Marcus; Skinner, Ryan

    2010-09-15

    Commercial ships calling at more and more ports worldwide can now turn off their diesel engines and tap into cleaner energy sources provided by electrical connections from shore. The technology to make this possible has been in place for over a decade. With a global technology standard due to be ratified by three technical bodies in 2010, high-voltage shore connections will soon get much more attention. Environmentally-minded ports, governments and shipowners are all tuning in to the benefits of supplying electricity to ships at berth. ABB presents the challenge, the technical solution and the business case for all parties involved.

  13. The VisPort Project: Visualization of Port Logistics

    Science.gov (United States)

    Katsioloudis, Petros J.; Watson, Ginger

    2011-01-01

    There is concern about the diminishing availability of skilled personnel that can operate in the wide variety of disciplines associated with port operations. Increasing cargo volume, combined with a shrinking workforce, could potentially create alarming situations in the future, hence the motivation to publicize to current students the breadth and…

  14. Colorectal carcinoma in Port Harcourt | Adotey | Port Harcourt ...

    African Journals Online (AJOL)

    Aim: To report experience with colorectal carcinoma in the University of Port Harcourt Teaching Hospital (UPTH). Methodology: Patients treated for colorectal cancer at the UPTH over a 19- year period (1987-2006) and had complete information, were studied. Data were collected from patients\\' case notes, ward registers, ...

  15. Port Harcourt Medical Journal, a paradigm shift | Eke | Port Harcourt ...

    African Journals Online (AJOL)

    Port Harcourt Medical Journal, a paradigm shift. N Eke. Abstract. No Abstract. Full Text: EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT · http://dx.doi.org/10.4103/0795-3038.179439 · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

  16. Numerical modelling of barrier discharge

    International Nuclear Information System (INIS)

    Kozlov, K.V.

    1990-01-01

    A survey is given of the theory of the barrier discharge in oxygen at atmospheric pressure. The discharge consists of a number of randomly distributed microdischarges of nanosecond duration. This complicated space-time structure must be taken into account in any numerical model of the barrier discharge. In a single discharge channel, three consequent phases can be distinguished; 1) electric breakdown and electron-time-scale processes; 2) ion drift and ion-time-scale processes; 3) slow chemical processes, diffusion of chemical products and heat transfer. The scheme of such a three-phase model is presented and the results of simulation are discussed and compared with experimental data. (J.U.) 9 figs., 15 refs

  17. Robot-Assisted Colectomy for Left-Sided Colon Cancer: Comparison of Reduced-Port and Conventional Multi-Port Robotic Surgery.

    Science.gov (United States)

    Bae, Sung Uk; Jeong, Woon Kyung; Baek, Seong Kyu

    2017-04-01

    The robotic single-port access plus one conventional robotic port, a reduced-port robotic surgery (RPRS) for left-sided colon cancer, can enable lymphovascular dissection using the wristed instrumentation and safe rectal transection through an additional port maintaining the cosmetic advantage of the single-port surgery. The aim of this study is to compare the clinicopathological outcomes between reduced-port and conventional multi-port robotic colectomy for left-sided colon cancer. The study group included 23 patients who underwent an RPRS and 16 patients who underwent a multi-PRS (MPRS) for left-sided colon cancer between August 2013 and January 2016. The operative time was significantly shorter in the RPRS group than in the MPRS group (mean time 258 ± 67 vs. 319 ± 66 minutes, P = .009). There were no apparent differences in tolerance of diet, postoperative pain score, length of hospital stay, the rate of postoperative complications, and the mean number of harvested lymph node, but the RPRS group had a significantly smaller total incision length (38 ± 12 mm vs. 83 ± 6 mm, P = .013). This study shows the feasibility and safety of the RPRS, with clinicopathological outcomes that is comparable with that of the MPRS for left-sided colon cancer.

  18. Impact of abattoir waste on Woji Creek, Port Harcourt, Nigeria, using ...

    African Journals Online (AJOL)

    The impact of waste discharge from Zoo abattoir, Port Harcourt, on the environmental quality of Woji Creek was studied from April 2001 to March 2002 using physicochemistry and diversity of benthic animals as indicators. Priority physicochemical parameters (total suspended solid, dissolved oxygen and biochemical oxygen ...

  19. A Bidirectional Multi-Port DC-DC Converter Integrating Voltage Equalizer

    DEFF Research Database (Denmark)

    Chen, Jianfei; Hou, Shiying; Deng, Fujin

    2015-01-01

    A novel bidirectional multi-port dc-dc converter integrating voltage equalizer based on switched-capacitor voltage accumulator (SCVA) is proposed. It has two operating modes of charging and discharging for battery modules. All battery modules are connected in series indirectly and can be equalized...

  20. Ankle replacement - discharge

    Science.gov (United States)

    ... total - discharge; Total ankle arthroplasty - discharge; Endoprosthetic ankle replacement - discharge; Osteoarthritis - ankle ... You had an ankle replacement. Your surgeon removed and reshaped ... an artificial ankle joint. You received pain medicine and were ...

  1. Tennis elbow surgery - discharge

    Science.gov (United States)

    Lateral epicondylitis surgery - discharge; Lateral tendinosis surgery - discharge; Lateral tennis elbow surgery - discharge ... Soon after surgery, severe pain will decrease, but you may have mild soreness for 3 to 6 months.

  2. Knee joint replacement - discharge

    Science.gov (United States)

    ... Knee replacement - total - discharge; Tricompartmental knee replacement - discharge; Osteoarthritis - knee replacement discharge ... such as downhill skiing or contact sports like football and soccer. But, you should be able to ...

  3. Freight movement, port facilities, and economic competitiveness.

    Science.gov (United States)

    2014-07-01

    This research report examines how the Panama Canal expansion will affect freight at three ports, truck movement : between the ports and inland economic hubs and the economic impacts accompanying the shift in cargo shipping : patterns. Economic impact...

  4. Port Harcourt Medical Journal: Submissions

    African Journals Online (AJOL)

    Port Harcourt Medical Journal (PMJ) is a general medical journal that will consider any original contribution that advances or illuminates medical science or ... The covering letter must include information on prior or duplicate publication and a statement of financial or other relationships that might lead to a conflict of interest.

  5. 19 CFR 142.52 - Port-wide and multiple port acceptance of Line Release.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 2 2010-04-01 2010-04-01 false Port-wide and multiple port acceptance of Line Release. 142.52 Section 142.52 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND... similar shipments for Line Release at all ports, a port director may exercise his discretion to deny Line...

  6. 19 CFR 101.3 - Customs service ports and ports of entry.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Customs service ports and ports of entry. 101.3 Section 101.3 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY GENERAL PROVISIONS § 101.3 Customs service ports and ports of entry. (a...

  7. Notch filters for port-Hamiltonian systems

    NARCIS (Netherlands)

    Dirksz, D.A.; Scherpen, J.M.A.; van der Schaft, A.J.; Steinbuch, M.

    2012-01-01

    In this paper a standard notch filter is modeled in the port-Hamiltonian framework. By having such a port-Hamiltonian description it is proven that the notch filter is a passive system. The notch filter can then be interconnected with another (nonlinear) port-Hamiltonian system, while preserving the

  8. Port-Based Modeling in Different Domains

    NARCIS (Netherlands)

    Batlle, C.; Couenne, F.; Doria-Cerezo, A.; Fossas, E.; Jallut, C.; Lefevre, L.; Le Gorrec, Y.; Maschke, B.M.; Ortega, R.; Schlacher, K.; Tayakout, M.; Duindam, V.; Macchelli, Alessandro; Stramigioli, Stefano; Bruyninckx, Herman

    2009-01-01

    In this Chapter we present some detailed examples of modelling in several domains using port and port-Hamiltonian concepts, as have been presented in the previous chapters. We start with the electromechanical domain in Sect. 3.1, while in Sect. 3.2 it is shown how port-Hamiltonian systems can be

  9. Multi-functional use of port areas

    NARCIS (Netherlands)

    Ros, R.; Taneja, P.; Vellinga, T.

    2012-01-01

    The core business of a port is handling vessels and cargo. In addition a landlord Port Authority invests in development of port areas. However, in view of the new trends such as stakeholders interests related to environment and sustainability, it is can be wise to reexamine the business portfolio

  10. Conservative systems with ports on contact manifolds

    NARCIS (Netherlands)

    Eberard, D.; Maschke, B.M.; van der Schaft, Arjan; Piztek, P.

    In this paper we propose an extension of port Hamiltonian systems, called conservative systems with ports, which encompass systems arising from the Irreversible Thermodynamics. Firstly we lift a port Hamiltonian system from its state space manifold to the thermodynamic phase space to a contact

  11. Perancangan Miniatur Traffic Light Dengan Mempergunakan Pengendali Port Paralel

    OpenAIRE

    Eka Wahyudi; Desi Permanasari

    2012-01-01

    Port paralel tentunya sudah tidak asing lagi dalam dunia komputer. Hal tersebut disebabkan karena port paralel merupakan sarana komunikasi yang terdapat pada Personal Computer (PC). Dengan memanfaatkan port tersebut, saat ini komputer juga dapat dipergunakan untuk keperluan pengontrolan/pengendalian rangkaian listrik dengan memanfaatkan port paralel (port printer). Port paralel memiliki kecepatan transfer data yang lebih cepat apabila dibandingkan dengan port serial, maka dari itu port parale...

  12. Performance Based Clustering for Benchmarking of Container Ports: an Application of Dea and Cluster Analysis Technique

    Directory of Open Access Journals (Sweden)

    Jie Wu

    2010-12-01

    Full Text Available The operational performance of container ports has received more and more attentions in both academic and practitioner circles, the performance evaluation and process improvement of container ports have also been the focus of several studies. In this paper, Data Envelopment Analysis (DEA, an effective tool for relative efficiency assessment, is utilized for measuring the performances and benchmarking of the 77 world container ports in 2007. The used approaches in the current study consider four inputs (Capacity of Cargo Handling Machines, Number of Berths, Terminal Area and Storage Capacity and a single output (Container Throughput. The results for the efficiency scores are analyzed, and a unique ordering of the ports based on average cross efficiency is provided, also cluster analysis technique is used to select the more appropriate targets for poorly performing ports to use as benchmarks.

  13. Maintaining and Researching Port Safety: A Case Study of the Port of Kaohsiung

    OpenAIRE

    Tseng, Po-Hsing.; Pilcher, Nick.

    2017-01-01

    Maintaining port safety in full conformity with IMO standards is a requisite for every port and country. To do this, understanding the challenges and human factors involved is key. To date, much research has shed valuable light on these factors and considered how to address them. One aspect that is often noted is that both maintaining port safety and researching port safety presents numerous challenges. This paper considers both these aspects in the context of a case study of port safety in K...

  14. Hub Status and Indexation of Container Ports

    Directory of Open Access Journals (Sweden)

    Yong-An Park

    2015-06-01

    This study develops two sub-indexes of port classification and capacity, and combines cases of these two sub-indexes into various types in order to find a proper port hub index. The paper demonstrates how different types of port hub index are useful measurements for evaluating outputs and inputs of container ports. In a case analysis we show that the indexes of period variables and lagged variables have more explanatory power with regard to changes of port throughputs and high correlation with inputs.

  15. Jean Lesaulnier, Images de Port-Royal

    OpenAIRE

    Pavesio, Monica

    2017-01-01

    Il volume di Jean Lesaulnier completa e precisa il precedente, pubblicato nel 2002 con il titolo di Images de Port-Royal I, che ha inaugurato la collezione Univers Port-Royal delle edizioni Classiques Garnier. Seguendo l’esempio del primo tomo, il presente saggio è suddiviso in tre sezioni che raggruppano venticinque studi: «Autour de Port-Royal des Champs» (cap. I-XI), «Questions d’historiographie port-royaliste» (cap. XII-XVII), «Figures discrètes de Port-Royal» (cap. XVIII-XXIV), con in ag...

  16. The Port Oxford meteorite hoax

    Science.gov (United States)

    Plotkin, H.

    1993-09-01

    An account is given of the solving of a longstanding mystery concerning the true origin of pallasite (stony-iron) meteorite fragments which John Evans claimed to have taken from a 10-ton object in the vicinity of the Rogue River mountains, near Port Oxford, Oregon. Elemental analyses have established that the fragments were taken from the Imilac/Ilimaes meteorite field in the Atacama Desert of Chile.

  17. Operative and Immediate Postoperative Differences Between Traditional Multiport and Reduced Port Laparoscopic Total Splenectomy in Pediatric Patients.

    Science.gov (United States)

    Seims, Aaron D; VanHouwelingen, Lisa; Mead, Jessica; Mao, Shenghua; Loh, Amos; Sandoval, John A; Davidoff, Andrew M; Wu, Jianrong; Wang, Winfred C; Fernandez-Pineda, Israel

    2017-02-01

    Laparoscopy offers many benefits to splenectomy, such as reduced incisional pain and shortened hospital duration. The purpose of this study is to evaluate procedural and outcome differences between multiport (MP) and reduced port (RP) splenectomy when utilized to treat children. An institutional review board approved retrospective analysis of all consecutive laparoscopic total splenectomies performed at a single institution between January 2010 and October 2015 was conducted. We evaluated demographics, surgical technique, instance of conversion, operative duration, estimated blood loss, need for intraoperative blood transfusion, postoperative length of stay, time to full feeds, complications, and follow-up duration. Over a 5-year period, 66 patients less than 20 years of age underwent laparoscopic total splenectomy. RP splenectomy was attempted in 14 patients. The remaining 52 were MP operations. Populations were comparable with regard to demographics. Preoperative splenic volumes (mL) were greater in the RP population (median [IQR]: 1377 [747-1508] versus 452 [242-710], P = .039). RP splenectomy demonstrated no difference compared to MP splenectomy in operative time (153 versus 138 minutes, P = .360), estimated blood loss (120 versus 154 mL, P = .634), or percent of cases requiring intraoperative blood transfusion (14 versus 23, P = .716). By the first postoperative day, 57% of RP and 17% of MP patients could be discharged (P = .005). Thirty-day readmission rates were similar, at 7% for RP and 8% for MP operations. Fever was the indication for all readmissions. Mean duration of follow-up is 28 months for MP and 13 months for RP cases. A reduced number of ports can be safely utilized for total splenectomy in pediatric patients without increasing procedural duration or need for intraoperative blood transfusion. In addition, rate of discharge on the first postoperative day was significantly higher in the RP splenectomy group.

  18. Nineteen-port photonic lantern with multimode delivery fiber

    DEFF Research Database (Denmark)

    Noordegraaf, Danny; Skovgaard, Peter M. W.; Sandberg, Rasmus Kousholt

    2012-01-01

    We demonstrate efficient multimode (MM) to single-mode (SM) conversion in a 19-port photonic lantern with a 50 μm core MM delivery fiber. The photonic lantern can be used within the field of astrophotonics for coupling MM starlight to an ensemble of SM fibers in order to perform fiber-Bragg-grati......We demonstrate efficient multimode (MM) to single-mode (SM) conversion in a 19-port photonic lantern with a 50 μm core MM delivery fiber. The photonic lantern can be used within the field of astrophotonics for coupling MM starlight to an ensemble of SM fibers in order to perform fiber......-Bragg-grating-based spectral filtering. An MM delivery fiber spliced to the photonic lantern offers the advantage that the delivery fiber guides the light from the focal plane of the telescope to the splitter. Therefore, it is no longer necessary to have the splitter mounted directly in the focal plane of the telescope...

  19. Engineering issues on the diagnostic port integration in ITER upper port 18

    Energy Technology Data Exchange (ETDEWEB)

    Pak, Sunil, E-mail: paksunil@nfri.re.kr [National Fusion Research Institute, Gwahak-ro, Yuseong-gu, Daejeon (Korea, Republic of); Bertalot, Luciano [ITER Organization, Route de Vinon sur Verdon, 13115 St Paul-lez-Durance (France); Cheon, Mun Seong [National Fusion Research Institute, Gwahak-ro, Yuseong-gu, Daejeon (Korea, Republic of); Giacomin, Thibaud [ITER Organization, Route de Vinon sur Verdon, 13115 St Paul-lez-Durance (France); Heemskerk, Cock J.M.; Koning, Jarich F. [Heemskerk Innovative Technology, Merelhof 2, 2172 HZ Sassenheim (Netherlands); Lee, Hyeon Gon [National Fusion Research Institute, Gwahak-ro, Yuseong-gu, Daejeon (Korea, Republic of); Nemtcev, Grigorii [Institution “PROJECT CENTER ITER”, Akademika Kurchatova sq., Moscow (Russian Federation); Ronden, Dennis M.S. [FOM Institute DIFFER, P.O. Box 1207, 3430 BE Nieuwegein (Netherlands); Seon, Chang Rae [National Fusion Research Institute, Gwahak-ro, Yuseong-gu, Daejeon (Korea, Republic of); Udintsev, Victor; Yukhnov, Nikolay [ITER Organization, Route de Vinon sur Verdon, 13115 St Paul-lez-Durance (France); Zvonkov, Alexander [Institution “PROJECT CENTER ITER”, Akademika Kurchatova sq., Moscow (Russian Federation)

    2016-11-01

    Highlights: • Diagnostic port integration in the upper port 18 of ITER is presented in order to house the three diagnostic systems. • Issue on the neutron shielding in the upper port 18 is addressed and the shut-down dose rate in the interspace is summarized. • The maintenance strategy in the upper port 18 is described. - Abstract: The upper port #18 (UP18) in ITER hosts three diagnostic systems: the neutron activation system, the Vacuum Ultra-Violet spectrometer system, and the vertical neutron camera. These diagnostics are integrated into three infrastructures in the port: the upper port plug, interspace support structure and port cell support structure. The port integration in UP18 is at the preliminary design stage and the current design of the infrastructure as well as the diagnostic integration is described here. The engineering issues related to neutron shielding and maintenance are addressed and the design approach is suggested.

  20. Plasma mixing glow discharge device for analytical applications

    Science.gov (United States)

    Pinnaduwage, L.A.

    1999-04-20

    An instrument for analyzing a sample has an enclosure that forms a chamber containing an anode which divides the chamber into a discharge region and an analysis region. A gas inlet and outlet are provided to introduce and exhaust a rare gas into the discharge region. A cathode within the discharge region has a plurality of pins projecting in a geometric pattern toward the anode for exciting the gas and producing a plasma discharge between the cathode and the anode. Low energy electrons (e.g. <0.5 eV) pass into the analysis region through an aperture. The sample to be analyzed is placed into the analysis region and bombarded by the metastable rare gas atoms and the low energy electrons extracted into from the discharge region. A mass or optical spectrometer can be coupled to a port of the analysis region to analyze the resulting ions and light emission. 3 figs.

  1. Temporary vs. Permanent Sub-slab Ports: A Comparative ...

    Science.gov (United States)

    Vapor intrusion (VI) is the migration of subsurface vapors, including radon and volatile organic compounds (VOCs), from the subsurface to indoor air. The VI exposure pathway extends from the contaminant source, which can be impacted soil, non-aqueous phase liquid, or contaminated groundwater, to indoor air-exposure points. Therefore, contaminated matrices may include groundwater, soil, soil gas, and indoor air. VOC contaminants of concern typically include halogenated solvents such as trichloroethene, tetrachloroethene, and chloroform, as well as petroleum hydrocarbons, such as the aromatic VOCs benzene, toluene, and xylenes. Radon is a colorless radioactive gas that is released by radioactive decay of radionuclides in rock and soil that migrate into homes through VI in a similar fashion to VOCs. This project focused on the performance of permanent versus temporary sub-slab sampling ports for the determination of VI of halogenated VOCs and radon into an unoccupied house. VOC and radon concentrations measured simultaneously in soil gas using collocated temporary and permanent ports appeared to be independent of the type of port. The variability between collocated temporary and permanent ports was much less than the spatial variability between different locations within a single residential duplex. The agreement of the majority of VOC and radon concentrations, 0–36% relative percent difference, and 2–19% relative standard deviation respectively, of each sub-sl

  2. Sources and contamination rate of port sediments: evidences from dimensional, mineralogical, and chemical investigations

    Science.gov (United States)

    Lucchetti, Gabriella; Cutroneo, Laura; Carbone, Cristina; Consani, Sirio; Vagge, Greta; Canepa, Giuseppe; Capello, Marco

    2017-04-01

    Ports are complex environments due to their complicated geometry (quays, channels, and piers), the presence of human activities (vessel traffic, yards, industries, and discharges), and natural factors (stream and torrent inputs, sea action, and currents). Due to the many activities that take place in a port, sediments and waters are often contaminated by different kinds of chemicals, such as hydrocarbons, dioxins, pesticides, nutrients, and metals. The contamination rate of a port basin is site specific and depends on the sources of contamination in the nearby urban system as well as the port system itself, such as city discharges and sewers, river intake, vessel traffic, factories (Taylor and Owens, 2009). Moreover, two important sources and vehicles of contaminants are: a) anthropogenic road deposited sediments derived from the runoff of the port and city area, and natural road deposited sediments derived from rivers and torrents, and b) airborne particulate matter and sediments (Taylor and Owens, 2009). The Port of Genoa is situated at the apex of the Ligurian Sea in the north western Mediterranean Sea and is characterised by the presence of several commercial activities that have contributed, over the years, and still contribute today, to the contaminant accumulation in both the water column and the bottom sediments. This port basin includes the mouth of several streams and the mouth of the Bisagno and the Polcevera Torrents, along the banks of which can be found several small towns, quarries, factories, and the suburbs of the city of Genoa, a ferry terminal, different container terminals, marinas, dry docks, the coal power plant of Genoa, and different wastewater treatment plant discharges. Starting from these considerations, we have examined the marine environment of a port from the point of view of the water mass circulation, hydrological characteristics, distribution of the sediment grain size, mineralogical characteristics, and metal concentrations of the

  3. Numerical Study on the Performance Characteristics of Hydrogen Fueled Port Injection Internal Combustion Engine

    OpenAIRE

    Rosli A. Bakar; Mohammed K. Mohammed; M. M. Rahman

    2009-01-01

    This study was focused on the engine performance of single cylinder hydrogen fueled port injection internal combustion engine. GT-Power was utilized to develop the model for port injection engine. One dimensional gas dynamics was represented the flow and heat transfer in the components of the engine model. The governing equations were introduced first, followed by the performance parameters and model description. Air-fuel ratio was varied from stoichiometric limit to a lean limit and the rota...

  4. In-cylinder air-flow characteristics of different intake port geometries using tomographic PIV

    Science.gov (United States)

    Agarwal, Avinash Kumar; Gadekar, Suresh; Singh, Akhilendra Pratap

    2017-09-01

    For improving the in-cylinder flow characteristics of intake air/charge and for strengthening the turbulence intensity, specific intake port geometries have shown significant potential in compression ignition engines. In this experimental study, effects of intake port geometries on air-flow characteristics were investigated using tomographic particle imaging velocimetry (TPIV). Experiments were performed using three experimental conditions, namely, swirl port open (SPO), tangential port open (TPO), and both port open (BPO) configurations in a single cylinder optical research engine. Flow investigations were carried out in a volumetric section located in the middle of the intake and exhaust valves. Particle imaging velocimetry (PIV) images were captured using two high speed cameras at a crank angle resolution of 2° in the intake and compression strokes. The captured PIV images were then pre-processed and post-processed to obtain the final air-flow-field. Effects of these two intake ports on flow-field are presented for air velocity, vorticity, average absolute velocity, and turbulent kinetic energy. Analysis of these flow-fields suggests the dominating nature of the swirl port over the tangential port for the BPO configuration and higher rate of flow energy dissipation for the TPO configuration compared to the SPO and BPO configurations. These findings of TPIV investigations were experimentally verified by combustion and particulate characteristics of the test engine in thermal cylinder head configuration. Combustion results showed that the SPO configuration resulted in superior combustion amongst all three port configurations. Particulate characteristics showed that the TPO configuration resulted in higher particulate compared to other port configurations.

  5. Enabling information sharing in a port

    DEFF Research Database (Denmark)

    Olesen, Peter Bjerg; Hvolby, Hans-Henrik; Dukovska-Popovska, Iskra

    2012-01-01

    Ports are integral parts of many supply chains and are as such a contributing factor to the overall efficiency of the supply chain. Ports are also dynamic entities where things changes continuously. The dynamic nature of ports is also a problem when trying to optimise the utilisation of resources...... highlights trust, availability of data and complexity of solutions and technology as being the main hurdles....

  6. Early Port-Related Structure Studies

    Science.gov (United States)

    McCarthy, Michael

    2013-12-01

    This paper examines three of Australia's earliest port-related structure studies. Excavations conducted in 1984 and 1994 in vastly different circumstances, with markedly different oceanographic conditions, progressing through quite different substrates, were joined with 1993-1994 overview of all the port structures along the coast of Western Australia. Providing a better appreciation of submerged port-related structure studies as a bona fide part of maritime archaeology, these three studies and have ramifications for future work both in Australia and overseas.

  7. Vessel Sewage Discharges

    Science.gov (United States)

    Vessel sewage discharges are regulated under Section 312 of the Clean Water Act, which is jointly implemented by the EPA and Coast Guard. This homepage links to information on marine sanitation devices and no discharge zones.

  8. Foot amputation - discharge

    Science.gov (United States)

    Amputation - foot - discharge; Trans-metatarsal amputation - discharge ... You have had a foot amputation. You may have had an accident, or your foot may have had an infection or disease and doctors could ...

  9. Elbow replacement - discharge

    Science.gov (United States)

    Total elbow arthroplasty - discharge; Endoprosthetic elbow replacement - discharge ... Pain is normal after elbow replacement surgery. It should get better over time. Your doctor will give you a prescription for pain medicine. Get it filled when ...

  10. Vaginal delivery - discharge

    Science.gov (United States)

    Pregnancy - discharge after vaginal delivery ... return in: 4 to 9 weeks after your delivery if you're not breastfeeding 3 to 12 ... can start sexual activity around 6 weeks after delivery, if the discharge or lochia has stopped. Women ...

  11. THE Port - hackathon at CERN

    CERN Multimedia

    CERN. Geneva; KNAEPPER, Ines; SILVA DE SOUSA, Bruno

    2014-01-01

    THE Port association combines creative minds from CERN and non-profit organisations in interdisciplinary teams to work on humanitarian technology related benefits to society. Our interdisciplinary teams of handpicked individuals chosen for their field-leading expertise and innovative mind combine humanitarian questions with state of the art science, cutting-edge technology and endless fantasy. We aim to impact the future by fusion of today’s real life problems analysis and vision of scientific evolution of the next decades. This forces us to develop concepts and solutions for the future - hungry to use our expertise in challenges of new fields.

  12. Port virtual addressing for PC

    International Nuclear Information System (INIS)

    Bolanos, L.; Arista, E.; Osorio Deliz, J.F.

    1997-01-01

    Instruments for nuclear signal measurements based on add-on card for a personal computer (PC) are designed often. Then one faces the problem of the addressing of data input/output devices which show an integration level or intelligence that makes the use of several port address indispensable, and these are limited in the PC. The virtual addressing offers the advantage of the occupation of few addresses to accede to many of these devices. The principles of this technique and the appliances of a solution in radiometric in a radiometric card based on programmed logic are discussed in this paper

  13. US Army Corps of Engineers Ports, Geographic WGS84, BTS (2006) [usace_port_BTS_2006

    Data.gov (United States)

    Louisiana Geographic Information Center — Contains physical information on commercial facilities at the principal U.S. Coastal, Great Lakes and Inland Ports. The data consists of listings of port area's...

  14. Maximizing port and transportation system productivity by exploring alternative port operation strategies.

    Science.gov (United States)

    2011-06-01

    Seaports are a critical transportation component that supports the nations economy. Many U.S. : ports are now experiencing significant truck congestion at the gate, which decreases the productivity of : ports and truck fleets (e.g. truck wait time...

  15. DEA Window Analysis for Measuring Port Efficiencies in Serbia

    Directory of Open Access Journals (Sweden)

    Danijela Pjevčević

    2012-01-01

    Full Text Available The aim of the paper is to apply Data Envelopment Analysis (DEA method in measuring and analyzing the efficiencies of ports on the river Danube. DEA window analysis is used to determine the efficiency of ports and to observe the possibility of changes in the port efficiency over time. A study is conducted to evaluate the efficiencies of ports on the territory of Serbia in order to identify the sources of inefficiencies and formulate proposals for improving the services of those ports and their operations through a four-year window analysis with port efficiency trends and average efficiencies. The progress is made in the measurement of port efficiency in relation to port productive activities - total area of warehouses, quay length, number of cranes and port throughput, for the Serbian river ports. Keywords: river ports, total area of warehouses, quay length, number of cranes, port throughput, port efficiency, DEA window analysis

  16. Perancangan Miniatur Traffic Light Dengan Mempergunakan Pengendali Port Paralel

    Directory of Open Access Journals (Sweden)

    Eka Wahyudi

    2012-05-01

    Full Text Available Port paralel tentunya sudah tidak asing lagi dalam dunia komputer. Hal tersebut disebabkan karena port paralel merupakan sarana komunikasi yang terdapat pada Personal Computer (PC. Dengan memanfaatkan port tersebut, saat ini komputer juga dapat dipergunakan untuk keperluan pengontrolan/pengendalian rangkaian listrik dengan memanfaatkan port paralel (port printer. Port paralel memiliki kecepatan transfer data yang lebih cepat apabila dibandingkan dengan port serial, maka dari itu port paralel lebih banyak dipergunakan untuk pengendalian nyala lampu (LED. Dengan memanfaatkan bantuan software Saraf Listrik versi 1.01, maka port paralel dapat menjadi alternatif baru untuk pengendalian traffic light.

  17. Heart attack - discharge

    Science.gov (United States)

    ... and lifestyle Cholesterol - drug treatment Controlling your high blood pressure Deep vein thrombosis - discharge Dietary fats explained Fast food tips Heart attack - discharge Heart attack - what to ask your doctor Heart bypass ... pacemaker - discharge High blood pressure - what to ask your doctor How to read ...

  18. Assessing the port to port risk of vessel movements vectoring non-indigenous marine species within and across domestic Australian borders.

    Science.gov (United States)

    Campbell, Marnie L; Hewitt, Chad L

    2011-07-01

    Biofouling of vessels is implicated as a high risk transfer mechanism of non-indigenous marine species (NIMS). Biofouling on international vessels is managed through stringent border control policies, however, domestic biofouling transfers are managed under different policies and legislative arrangements as they cross internal borders. As comprehensive guidelines are developed and increased compliance of international vessels with 'clean hull' expectations increase, vessel movements from port to port will become the focus of biosecurity management. A semi-quantitative port to port biofouling risk assessment is presented that evaluates the presence of known NIMS in the source port and determines the likelihood of transfer based on the NIMS association with biofouling and environmental match between source and receiving ports. This risk assessment method was used to assess the risk profile of a single dredge vessel during three anticipated voyages within Australia, resulting in negligible to low risk outcomes. This finding is contrasted with expectations in the literature, specifically those that suggest slow moving vessels pose a high to extreme risk of transferring NIMS species.

  19. Single-incision laparoscopic splenectomy with innovative gastric traction suture

    Directory of Open Access Journals (Sweden)

    Srikanth G

    2011-01-01

    Full Text Available Laparoscopic splenectomy is now the gold standard for patients with idiopathic thrombocytopenic purpura (ITP undergoing splenectomy. There are a few reports in literature on single-incision laparoscopic (SIL splenectomy. Herein, we describe a patient undergoing SIL splenectomy for ITP without the use of a disposable port device. We report a 20-year-old female patient with steroid-refractory ITP having a platelet count of 14,000/cmm who underwent a SIL splenectomy. Dissection was facilitated by the use of a single articulating grasper and a gastric traction suture and splenic vessels were secured at the hilum with an endo-GIA stapler. She made an uneventful postoperative recovery and was discharged on the second postoperative day. She is doing well with no visible scar at 8-month follow-up.

  20. The radiation analyses of ITER lower ports

    International Nuclear Information System (INIS)

    Petrizzi, L.; Brolatti, G.; Martin, A.; Loughlin, M.; Moro, F.; Villari, R.

    2010-01-01

    The ITER Vacuum Vessel has upper, equatorial, and lower ports used for equipment installation, diagnostics, heating and current drive systems, cryo-vacuum pumping, and access inside the vessel for maintenance. At the level of the divertor, the nine lower ports for remote handling, cryo-vacuum pumping and diagnostic are inclined downwards and toroidally located each every 40 o . The cryopump port has additionally a branch to allocate a second cryopump. The ports, as openings in the Vacuum Vessel, permit radiation streaming out of the vessel which affects the heating in the components in the outer regions of the machine inside and outside the ports. Safety concerns are also raised with respect to the dose after shutdown at the cryostat behind the ports: in such zones the radiation dose level must be kept below the regulatory limit to allow personnel access for maintenance purposes. Neutronic analyses have been required to qualify the ITER project related to the lower ports. A 3-D model was used to take into account full details of the ports and the lower machine surroundings. MCNP version 5 1.40 has been used with the FENDL 2.1 nuclear data library. The ITER 40 o model distributed by the ITER Organization was developed in the lower part to include the relevant details. The results of a first analysis, focused on cryopump system only, were recently published. In this paper more complete data on the cryopump port and analysis for the remote handling port and the diagnostic rack are presented; the results of both analyses give a complete map of the radiation loads in the outer divertor ports. Nuclear heating, dpa, tritium production, and dose rates after shutdown are provided and the implications for the design are discussed.

  1. In-cylinder tumble flows and performance of a motorcycle engine with circular and elliptic intake ports

    Science.gov (United States)

    Huang, R. F.; Lin, K. H.; Yeh, C.-N.; Lan, J.

    2009-01-01

    The temporal and spatial evolution processes of the flows in the cylinder of a four-valve, four-stroke, single cylinder, reciprocating motorcycle engine installed with the elliptic and circular intake ports were experimentally studied by using the particle image velocimetry (PIV). The engine was modified to fit the requirements of PIV measurement. The velocity fields measured by the PIV were analyzed and quantitatively presented as the tumble ratio and turbulence intensity. In the symmetry plane, both the circular and elliptic intake ports could initiate a vortex around the central region during the intake stroke. During the compression stroke, the central vortex created in the cylinder of the engine with the circular intake port disappeared, while that in the engine cylinder with the elliptic intake port further developed into the tumble motion. In the offset plane, weak vortical structures were initiated by the bluff-body effect of the intake valves during the intake stroke. The vortical structures induced by the elliptic intake port were more coherent than those generated by the circular intake port; besides, this feature extends to the compression stroke. The cycle-averaged tumble ratio and the turbulence intensity of the engine with the elliptic intake port were dramatically larger than those of the engine with the circular intake port. The measured engine performance was improved a lot by installing the elliptic intake port. The correlation between the flow features and the enhancement of the engine performance were argued and discussed.

  2. On Distributed Port-Hamiltonian Process Systems

    NARCIS (Netherlands)

    Lopezlena, Ricardo; Scherpen, Jacquelien M.A.

    2004-01-01

    In this paper we use the term distributed port-Hamiltonian Process Systems (DPHPS) to refer to the result of merging the theory of distributed Port-Hamiltonian systems (DPHS) with the theory of process systems (PS). Such concept is useful for combining the systematic interconnection of PHS with the

  3. Cyber security in ports : Business as usual

    NARCIS (Netherlands)

    Moerel, Lokke; Dezeure, Freddy

    2017-01-01

    Our paper summarizes the risks and provides concrete and pragmatic proposals to increase substantially the cyber maturity and resilience in the ports by organizing training and awareness raising, fostering cooperation and information exchange both between the stakeholders in the ports and across the

  4. Visual Support for Porting Large Code Bases

    NARCIS (Netherlands)

    Broeksema, Bertjan; Telea, Alexandru

    2011-01-01

    We present a tool that helps C/C++ developers to estimate the effort and automate software porting. Our tool supports project leaders in planning a porting project by showing where a project must be changed, how many changes are needed, what kinds of changes are needed, and how these interact with

  5. Agile Port and High Speed Ship Technologies

    Science.gov (United States)

    2009-12-31

    Ports" Press-Telegram. November 17, 2006. Weikel, Dan. "Ports Considering Maglev Trains to Cut Smog." Los Angeles Times. Page B2. November 28, 2006...approved Expeditionary Theater Opening (ETO) Joint Doctrine; Organizations; Training ; Materiel; Leadership and Education; Personnel; and Facilities...Alternative Shipboard Powering Systems for Naval and Regulatory Review • The Evaluation and Implementation Plan for Southern California Maglev

  6. Are we connected? : Ports in Global Networks

    NARCIS (Netherlands)

    R.A. Zuidwijk (Rob)

    2015-01-01

    markdownabstractAbstract Global supply chains are built on organizational, information, and logistics networks. Ports are connected via these networks and also need to connect these networks. Synchromodality is an innovative concept for container transportation, and the port plays an important

  7. Lessons from Hurricane Sandy for port resilience.

    Science.gov (United States)

    2013-12-01

    New York Harbor was directly in the path of the most damaging part of Hurricane Sandy causing significant impact on many of the : facilities of the Port of New York and New Jersey. The U.S. Coast Guard closed the entire Port to all traffic before the...

  8. Ports Primer: 3.3 Federal and International Governance

    Science.gov (United States)

    State and local governments are important players in port governance and in oversight of transportation projects that may affect ports. Private corporations may also play a role if they lease or own a terminal at a port.

  9. Influence of Port Policy on the Development of Croatian Container Ports

    Directory of Open Access Journals (Sweden)

    Čedomir Dundović

    2002-03-01

    Full Text Available It is important to consider the port development throughoutthe world from the aspect of economical, transport and portpolicy and their mutual impact on commerce and efficiency ofports. By examining such relations in the context of developmentof the Croatian container ports, it is possible to define reasonsfor lagging behind of Croatian ports compared to theworld movements.The main reason for the negative trend of development ofCroatian container ports lies in the non-existence of adequatemeasures of transport, maritime and port policy. Analysis ofstatistics over the past decade and comparison of structure andvolume of the general cargo traffic in the Rijeka port and theneighbouring ports in the area of North Adriatic are both showingsignificant size discrepancy and uncompetitiveness of theCroatian port. Disturbances that have brought to such a situationresult from inadequate port policy and non-harmonisedactivities between various modes of transport.In order to overcome such situation, the authors suggest determiningof clear tasks, goals and measures of the port policythat have to be undertaken so that the Croatian policy could becompatible with the main aspects, development tendencies andmeasures of theE U port policy.

  10. Two-port access versus four-port access laparoscopic ovarian cystectomy.

    Science.gov (United States)

    Choi, Won-Kyu; Kim, Jang-Kew; Yang, Jung-Bo; Ko, Young-Bok; Nam, Sang-Lyun; Lee, Ki-Hwan

    2014-09-01

    This study was conducted to compare the surgical outcomes between two-port access and four-port access laparoscopic ovarian cystectomy. Four hundred and eighty nine patients who had received two-port access laparoscopic ovarian cystectomy (n=175) and four-port access laparoscopic ovarian cystectomy (n=314) in Chungnam National University Hospital from January 2009 to August 2012 were analyzed retrospectively. The data were compared between the bilaterality of the cysts and cyst diameter of less than 6 cm and 6 cm or more. There were no significant differences in patient's age, parity, body weight, body mass index and history of previous surgery between the two-port and four-port access laparoscopy group. Bilaterality of ovarian cysts was more in fourport access laparoscopy group (13.7% vs. 32.5%, P=0.000). There were no significant differences in operation time, hemoglobin change, hospital stay, adhesiolysis, transfusion, and insertion of hemo-vac between the two-port and four-port access laparoscopy group for size matched compare. However additional analgesics were more in four-port access laparoscopy group for unilateral ovarian cystectomy. Two-port access laparoscopic surgery was feasible and safe for unilateral and bilateral ovarian cystectomy compare with four-port access laparoscopic surgery.

  11. Colonial Origins of the Port of Buenaventura

    Directory of Open Access Journals (Sweden)

    Alonso Valencia Llano

    2014-07-01

    Full Text Available This article studies the origins of the Port of Buenaventura in the New Kingdom of Granada. It begins with the process of exploration of the coastal territory in order to highlight the different sites in which it was situated, demonstrating that it began as a river port and was later resituated and gradually converted into a maritime port. In addition, this article analyzes the problems it faced, such as the dificulty of communication with the interior of the country, the indigenous resistance that caused the destruction of the town, and inally the necessity of populating the zone with black slaves in order to exploit the mining border. This study also discusses how this port was controlled by the elite of the city of Cali, until the Republican period when it became the sole Colombian port on the Paciic Ocean.

  12. Integrated circuit test-port architecture and method and apparatus of test-port generation

    Science.gov (United States)

    Teifel, John

    2016-04-12

    A method and apparatus are provided for generating RTL code for a test-port interface of an integrated circuit. In an embodiment, a test-port table is provided as input data. A computer automatically parses the test-port table into data structures and analyzes it to determine input, output, local, and output-enable port names. The computer generates address-detect and test-enable logic constructed from combinational functions. The computer generates one-hot multiplexer logic for at least some of the output ports. The one-hot multiplexer logic for each port is generated so as to enable the port to toggle between data signals and test signals. The computer then completes the generation of the RTL code.

  13. E-Commerce in Ports

    Directory of Open Access Journals (Sweden)

    Elen Twrdy

    2002-01-01

    Full Text Available EDI (Electronic Data Interchange and electronic businessshould be looked upon as a natural evolution in the internationaltrade and transport cycle. One of the principal reasonsfor starting to use EDI are the heaps of documents written,shifted, handled, conected, transcribed and copied for normalbusiness and administrative transactions. EDJ and in generalelectronic business would have none of the disadvantages ofpaper documents and have already brought substantial benefitsand savings to companies that implement it.Most port community systems today still do not provide forelectronic transfer of funds or for electronic interchange of invoicesand other trade documents, for instance bills of lading.Such services are specific toe-business and they are the necessarytransport-related documents.

  14. Carajas transport system and port

    Energy Technology Data Exchange (ETDEWEB)

    Soros, P.; Koman, B.

    1986-01-01

    Rich iron ore deposits were discovered during the 1960's in the mountain range of Serra dos Carajas, State of Para, Brazil, near the headwaters of the Tocantins River some 400 miles southwest from the state capital of Belem. The key to the successful exploitation of this deposit was the development of an efficient an economical transportation system. Starting in 1972 extensive surveys and studies were carried out by Soros Associates on behalf of CVRD to determine the optimum way of transporting the ore from the mine site to the markets, most of which are located overseas. Overland transportation to the coast, loading into seagoing vessels and the ocean voyage to the ports of destination was treated as an integrated system in these studies.

  15. DECONTAMINATION OF DREDGED MATERIAL FROM THE PORT OF NEW YORK AND NEW JERSEY.

    Energy Technology Data Exchange (ETDEWEB)

    JONES,K.W.; STERN,E.A.; DONATO,K.R.; CLESCERI,N.L.

    1999-06-01

    The Port of New York and New Jersey ranks first in the United States in volume of petroleum products handled each year. In addition, many refineries are in operation on the New Jersey side of the Port. These activities have led to the discharge of significant amounts of petroleum hydrocarbons into the waters of the New York/New Jersey region. Intense industrial and commercial activities have also brought about major inputs of other organic and inorganic contaminants as would be expected in an industrialized, heavily populated urban port. Sediments that then are contaminated are a major problem for the region since they can no longer be disposed of by the traditional method of ocean disposal following the dredging operations required for the efficient operation of the Port. Decontamination and beneficial reuse of the dredged materials is one component of a comprehensive dredged material management plan being developed by the US Army Corps of Engineers. A demonstration decontamination project extending from bench- to field-scale operations is now in progress in the Port, and its current status and relevance for other regions is summarized.

  16. DECONTAMINATION OF DREDGED MATERIAL FROM THE PORT OF NEW YORK AND NEW JERSEY

    Energy Technology Data Exchange (ETDEWEB)

    JONES,K.W.; STERN,E.A.; DONATO,K.R.; CLESCERI,N.L.

    1999-06-01

    The Port of New York and New Jersey ranks first in the US in volume of petroleum products handled each year. In addition, many refineries are in operation on the New Jersey side of the Port. These activities have led to the discharge of significant amounts of petroleum hydrocarbons into the waters of the New York/New Jersey region. Intense industrial and commercial activities have also brought about major inputs of other organic and inorganic contaminants as would be expected in an industrialized, heavily populated urban port. Sediments that then are contaminated are a major problem for the region since they can no longer be disposed of by the traditional method of ocean disposal following the dredging operations required for the efficient operation of the Port. Decontamination and beneficial reuse of the dredged materials is one component of a comprehensive dredged material management plan being developed by the US Army Corps of Engineers. A demonstration decontamination project extending from bench- to field-scale operations is now in progress in the Port, and its current status and relevance for other regions is summarized.

  17. The Practice of Guangzhou Port Planning Environmental Impact Assessment

    Science.gov (United States)

    Wang, Ning; Zhao, Junjie; Shou, Youping; Qiao, Jianzhe; Dong, Shipei; Zhang, Lu

    2018-01-01

    In this paper, the effects of the implementation of Guangzhou port plan were analyzed from hydrological condition, water environment and ecological environment. Regional water environmental carrying capacity was analyzed. Guangzhou port is a main port in the coast of China, it is an important port of foreign trade in south China, it is an important port for energy supplies and raw materials in Guangdong province [1]. With the shipping channel condition improvement and the construction of large specialized container port area, Guangzhou port will gradually become trunk line port of container transport in south China.

  18. Simulating storm surge inundation and damage potential within complex port facilities

    Science.gov (United States)

    Mawdsley, Robert; French, Jon; Fujiyama, Taku; Achutan, Kamalasudhan

    2017-04-01

    Storm surge inundation of port facilities can cause damage to critical elements of infrastructure, significantly disrupt port operations and cause downstream impacts on vital supply chains. A tidal surge in December 2013 in the North Sea partly flooded the Port of Immingham, which handles the largest volume of bulk cargo in the UK including major flows of coal and biomass for power generation. This flooding caused damage to port and rail transport infrastructure and disrupted operations for several weeks. This research aims to improve resilience to storm surges using hydrodynamic modelling coupled to an agent-based model of port operations. Using the December 2013 event to validate flood extent, depth and duration, we ran a high resolution hydrodynamic simulation using the open source Telemac 2D finite element code. The underlying Digital Elevation Model (DEM) was derived from Environment Agency LiDAR data, with ground truthing of the flood defences along the port frontage. Major infrastructure and buildings are explicitly resolved with varying degrees of permeability. Telemac2D simulations are run in parallel and take only minutes on a single 16 cpu compute node. Inundation characteristics predicted using Telemac 2D differ from a simple Geographical Information System 'bath-tub' analysis of the DEM based upon horizontal application of the maximum water level across the port topography. The hydrodynamic simulation predicts less extensive flooding and more closely matches observed flood extent. It also provides more precise depth and duration curves. Detailed spatial flood depth and duration maps were generated for a range of tide and surge scenarios coupled to mean sea-level rise projections. These inundation scenarios can then be integrated with critical asset databases and an agent-based model of port operation (MARS) that is capable of simulating storm surge disruption along wider supply chains. Port operators are able to act on information from a particular

  19. Early discharge following birth

    DEFF Research Database (Denmark)

    Nilsson, Ingrid M. S.; Kronborg, Hanne; Knight, Christopher H.

    2017-01-01

    of discharge after birth. Results In total 34% mothers were discharged within 12 hours (very early) and 25% between 13 and 50 hours (early), respectively. Vaginal birth and multiparity were the most influential predictors, as Caesarean section compared to vaginal birth had an OR of 0.35 (CI 0....... Smoking, favourable social support and breastfeeding knowledge were significantly associated with discharge within 12 hours. Finally time of discharge varied significantly according to region and time of day of birth. Conclusions Parity and birth related factors were the strongest predictors of early...

  20. A branch-and-price algorithm to solve the integrated berth allocation and yard assignment problem in bulk ports

    DEFF Research Database (Denmark)

    Robenek, Tomáš; Umang, Nitish; Bierlaire, Michel

    2014-01-01

    -shaking neighborhood search is presented. The proposed algorithms are tested and validated through numerical experiments based on instances inspired from real bulk port data. The results indicate that the algorithms can be successfully used to solve instances containing up to 40 vessels within reasonable computational......In this research, two crucial optimization problems of berth allocation and yard assignment in the context of bulk ports are studied. We discuss how these problems are interrelated and can be combined and solved as a single large scale optimization problem. More importantly we highlight...... the differences in operations between bulk ports and container terminals which highlights the need to devise specific solutions for bulk ports. The objective is to minimize the total service time of vessels berthing at the port. We propose an exact solution algorithm based on a branch and price framework to solve...

  1. TRENDS IN CONTEMPORARY PORT SERVICES MARKETS

    Directory of Open Access Journals (Sweden)

    Hanna Klimek

    2014-12-01

    Full Text Available This article describes the issues associated with functioning of contemporary seaport services markets. The growth of international supply chains, technical progress and the integration processes in shipping, growth of containerization, increasing competition in the seaport services markets and environmental protection regulations make it necessary for port service providers to adapt to the changing expectations and requirements of their customers, both shippers and, especially maritime, carriers. Thus, the activities they undertake are associated with making investments to ensure an adequate capacity to handle cargo, passengers and means of transport, required quality of service, but also with appropriate organization of port supply centres and lead to an improvement of their competitiveness. Both the factors associated with the external and internal environment of seaports affect the changes in the relationship between the supply and demand on port services markets. Contemporary port services markets are characterized by certain phenomena which can be a sign of their adaptation and development. The aim of this article is to present the essence of the port services market and its relationship with the environment, which subject to rapid and significant changes, creates new conditions for the operation of port supply centres and the entire port services market.

  2. Towards Sustainable ASEAN Port Development: Challenges and Opportunities for Vietnamese Ports

    Directory of Open Access Journals (Sweden)

    Saeyeon Roh

    2016-06-01

    Full Text Available Sustainability agendas are challenging port authorities around the world to find ways of operating and managing their ports efficiently and effectively in terms of economic, social, as well as environmental development. In this respect, governments in ASEAN countries have been implementing various green activities seeking to reduce the environmental impact of shipping and related activities. In this connection, most studies in the existing literature mainly focus on the environmental aspects of sustainable development and have not clearly explained what sustainable port development exactly entails. Furthermore, most of these studies emphasized on the impact of port development and overlooked what factors influence sustainable port development. To address these gaps, this research aim to explore the main factors shaping sustainable port development. This was conducted through a comprehensive review of related literature as well as confirmatory in-depth interviews with port authorities. As a result, findings from this research would help identify key elements of sustainable port development from port authorities’ perspective. The challenges, opportunities and managerial implications for Vietnamese ports are also discussed accordingly.

  3. India opens 12th major port

    Energy Technology Data Exchange (ETDEWEB)

    Nadkarni, S.

    2001-05-01

    It has been a long time coming, but Ennore has become the first Indian port to be corporatised. Its inauguration provides a benchmark for turnkey projects. Most of the major components such as the construction of the breakwaters and the two berths for coal handling and dredging works at the port basin and approach channel have been completed. The article describes the origins of the project and its costing, the construction of breakwaters, equipment for conveying and unloading coal, the port infrastructure, and a planned second expansion phase. 4 photos.

  4. Graywater Discharges from Vessels

    Science.gov (United States)

    2011-11-01

    both sewage and graywater, or sewage collected from “ honey dipper” trucks, which may contain far less graywater, depending on the source (See... crystal clean effluent discharge. As a reference, Cruiseliners equipped with Scanship AWP systems has obtained continous discharge permits in Hawaii and

  5. Paediatric vaginal discharge

    African Journals Online (AJOL)

    Vaginal discharge in the prepubertal patient is a common symptom, and can be a source of distress for the caregiver and con- cern for the healthcare worker. Several factors predispose these patients to the development of recurrent vaginal discharge. Unless noticed by the caregiver, this problem can persist for long periods ...

  6. Prostate brachytherapy - discharge

    Science.gov (United States)

    ... nausea or vomiting Any new or unusual symptoms Alternative Names Implant therapy - prostate cancer - discharge; Radioactive seed placement - discharge References D'Amico AV, Nguyen PL, Crook JM, et al. Radiation therapy for prostate cancer. In: Wein AJ, Kavoussi LR, Partin AW, Peters CA, ...

  7. CO-AXIAL DISCHARGES

    Science.gov (United States)

    Luce, J.S.; Smith, L.P.

    1960-11-22

    A method and apparatus are given for producing coaxial arc discharges in an evacuated enclosure and within a strong, confining magnetic field. The arcs are maintained at a high potential difference. Electrons will diffuse to the more positive arc from the negative arc, and positive ions will diffuse from the more positive arc to the negative arc. Coaxial arc discharges have the advantage that ions which return to strike the positive arc discharge will lose no energy since they do not strike a solid wall or electrode. Those discharges are useful in confining an ionized plasma between the discharges, and have the advantage of preventing impurities from the walls of the enclosure from entering ihe plasma area because of the arc barrier set up bv the cylindrical outer arc.

  8. Predicting tile drainage discharge

    DEFF Research Database (Denmark)

    Iversen, Bo Vangsø; Kjærgaard, Charlotte; Petersen, Rasmus Jes

    More than 50 % of Danish agricultural areas are expected to be artificial tile drained. Transport of water and nutrients through the tile drain system to the aquatic environment is expected to be significant. For different mitigation strategies such as constructed wetlands an exact knowledge...... of the water load coming from the tile drainage system is therefore essential. This work aims at predicting tile drainage discharge using dynamic as well as a statistical predictive models. A large dataset of historical tile drain discharge data, daily discharge values as well as yearly average values were...... used in the analysis. For the dynamic modelling, a simple linear reservoir model was used where different outlets in the model represented tile drain as well as groundwater discharge outputs. This modelling was based on daily measured tile drain discharge values. The statistical predictive model...

  9. Laparo-endoscopic single-site (LESS) cholecystectomy with epidural vs. general anesthesia.

    Science.gov (United States)

    Ross, Sharona B; Mangar, Devanand; Karlnoski, Rachel; Camporesi, Enrico; Downes, Katheryne; Luberice, Kenneth; Haines, Krista; Rosemurgy, Alexander S

    2013-05-01

    Laparo-endoscopic single-site (LESS) surgery involves a single umbilical incision, lending itself to epidural anesthesia. This prospective, randomized study was undertaken to evaluate epidural anesthesia for patients undergoing LESS cholecystectomy, to assess the feasibility, and to analyze all intraoperative and postoperative complications. The secondary objectives were to determine differences in postoperative pain and time until PACU discharge-to-home readiness between patients. With institutional review board approval, 20 patients with chronic cholecystitis, cholelithiasis, and/or biliary dyskinesia were randomized to receive spinal epidural anesthesia (n = 10) or general anesthesia (n = 10). Postoperative pain at rest was recorded in the PACU every 10 min, and at rest and walking at discharge using the visual analog scale (VAS). Operative time and time until PACU discharge-to-home readiness were recorded. Results are expressed as mean ± SD. Patient age, American Society of Anesthesiologists class, and body mass index were similar. There were no additional ports/incisions, conversions to "open" operations, or conversions to general anesthesia. There were no differences in operative duration. Time until postanesthesia care unit discharge-to-home ready was not significantly different. The most common postoperative adverse event was urinary retention (1 epidural and 3 general anesthesia patients). Resting postoperative VAS pain score at discharge was 4.7 ± 2.5 vs. 2.2 ± 1.6 (p = 0.02, general versus epidural anesthesia respectively); the stressed VAS pain score at discharge was 6.1 ± 2.3 vs. 3.1 ± 2.8 (p = 0.02, general versus epidural anesthesia respectively). LESS cholecystectomy with epidural anesthesia was completed with no operative or anesthetic conversions, and less postoperative pain at discharge. Epidural anesthesia appears to be a preferable alternative to general anesthesia for patients undergoing LESS cholecystectomy.

  10. Discharge current distribution in stratified soil under impulse discharge

    Science.gov (United States)

    Eniola Fajingbesi, Fawwaz; Shahida Midi, Nur; Elsheikh, Elsheikh M. A.; Hajar Yusoff, Siti

    2017-06-01

    The mobility of charge particles traversing a material defines its electrical properties. Soil (earth) have long been the universal grounding before and after the inception of active ground systems for electrical appliance purpose due to it semi-conductive properties. The soil can thus be modelled as a single material exhibiting semi-complex inductive-reactive impedance. Under impulse discharge such as lightning strikes to soil this property of soil could result in electric potential level fluctuation ranging from ground potential rise/fall to electromagnetic pulse coupling that could ultimately fail connected electrical appliance. In this work we have experimentally model the soil and lightning discharge using point to plane electrode setup to observe the current distribution characteristics at different soil conductivity [mS/m] range. The result presented from this research indicate above 5% shift in conductivity before and after discharge which is significant for consideration when dealing with grounding designs. The current distribution in soil have also be successfully observed and analysed from experimental result using mean current magnitude in relation to electrode distance and location, current density variation with depth all showing strong correlation with theoretical assumptions of a semi-complex impedance material.

  11. Modelling electric discharge chemistry

    International Nuclear Information System (INIS)

    McFarlane, J.; Wren, J.C.

    1991-07-01

    The chemistry occurring in a electric discharge was modelled to predict how it would be influenced by discharge conditions. The discharge was characterized by a calculated Boltzmann electron-energy distribution, from which rate constants for electron-molecule processes in air were determined. These rate constants were used in a chemical kinetics calculation that also included reactions between neutral molecules, ions, free radicals and electronically excited species. The model describes how the discharge chemistry was influenced by humidity, electric field, electron number density, and concentrations of key reagents identified in the study. The use of an electric discharge to destroy airborne contaminant molecules was appraised, the targeted contaminants being CF 2 Cl 2 , HCN, and SO 2 . The modelling results indicate that an electric discharge should be able to remove HCN and CF 2 Cl 2 effectively, especially if the discharge conditions have been optimized. Effective destruction is achieved with a moderate electric field (over 1 x 10 -15 V.cm 2 ), a substantial electron number density (over 1 x 10 12 cm -3 ), and the presence of H 2 0 in the process air. The residence time in the discharge was also shown to be important in contaminant destruction. An attempt was made to explain the results of the electric discharge abatement of SO 2 , a component of a simulated flue-gas mixture. Results from the model indicate that the discharge parameters that increase the concentration of hydroxyl radical also increase the rate of decomposition of SO 2 . An objective of the study was to explain the apparent enhancement of SO 2 destruction by the presence of a small amount of NO 2 . It was thought that a likely explanation would be the stabilization of HOSO 2 , an important intermediate in the oxidation of SO 2 by NO 2 . (49 figs., 14 tabs., 75 refs.)

  12. Design and construction of multi-port solid state structure for the Rhodotron accelerator

    International Nuclear Information System (INIS)

    Poursaleh, A.M.; Jabbari, I.; Khalafi, H.

    2017-01-01

    RF generation and method used for coupling power to the acceleration cavity are important issues in the RF accelerators. In this study, a high power vacuum tube was replaced with several medium power solid state amplifiers coupled through a multi-port structure in the Rhodotron-TT200 accelerator. To this end, a multi-port structure was implemented on a small aluminum model cavity for 1 to 9 ports and all main parameters affecting return loss, quality factor, coupling coefficient and RF power were investigated by calculation, simulation and experimental tests. Then, three 20 kW solid state amplifiers were designed and constructed. The outputs of these amplifiers were coupled to the Rhodotron acceleration cavity by three input ports based on the results obtained from the model cavity for generation of 5 MeV electron beam. In this method, several smaller amplifiers were used instead of a single high power amplifier. As such, acceleration cavity plays the role of power combiner in addition to its primary role and there is no need to a high power combiner. The results showed that the number of ports, port positions, angle between ports and phase of input signals, significantly affect the acceleration electrical field in the cavity. Also, experimental tests revealed that three constructed RF power supplies are enough for the generation of 5 MeV electron beam in the Rhodotron accelerator. Considering the advantages of the solid state amplifiers, application of multi-port structure and solid state amplifiers could be expanded in the industrial electron accelerators.

  13. Design and construction of multi-port solid state structure for the Rhodotron accelerator

    Science.gov (United States)

    Poursaleh, A. M.; Jabbari, I.; Khalafi, H.

    2017-04-01

    RF generation and method used for coupling power to the acceleration cavity are important issues in the RF accelerators. In this study, a high power vacuum tube was replaced with several medium power solid state amplifiers coupled through a multi-port structure in the Rhodotron-TT200 accelerator. To this end, a multi-port structure was implemented on a small aluminum model cavity for 1 to 9 ports and all main parameters affecting return loss, quality factor, coupling coefficient and RF power were investigated by calculation, simulation and experimental tests. Then, three 20 kW solid state amplifiers were designed and constructed. The outputs of these amplifiers were coupled to the Rhodotron acceleration cavity by three input ports based on the results obtained from the model cavity for generation of 5 MeV electron beam. In this method, several smaller amplifiers were used instead of a single high power amplifier. As such, acceleration cavity plays the role of power combiner in addition to its primary role and there is no need to a high power combiner. The results showed that the number of ports, port positions, angle between ports and phase of input signals, significantly affect the acceleration electrical field in the cavity. Also, experimental tests revealed that three constructed RF power supplies are enough for the generation of 5 MeV electron beam in the Rhodotron accelerator. Considering the advantages of the solid state amplifiers, application of multi-port structure and solid state amplifiers could be expanded in the industrial electron accelerators.

  14. Public Port Finance Survey for FY 2006

    Science.gov (United States)

    2008-12-01

    This report is the result of a cooperative effort between the Maritime Administration and : the American Association of Port Authorities (AAPA). It was prepared by the Maritime : Administration, using financial information furnished by AAPA. : This i...

  15. Port Authority of Allegheny County Transit Stops

    Data.gov (United States)

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — All transit stops within the Port Authority of Allegheny County's service area for the November 20, 2016 - March (TBD) 2017 schedule period.

  16. Algorithms for Port-of-Entry Inspection

    National Research Council Canada - National Science Library

    Roberts, Fred S

    2007-01-01

    .... The percentage at some ports has now risen to 6%, but this is still a very small percentage. The purpose of this project was to develop decision support algorithms that help to optimally intercept illicit materials and weapons...

  17. Port: arstid kasutavad narkootikume / Marina Lohk

    Index Scriptorium Estoniae

    Lohk, Marina

    2015-01-01

    Tallinna ülikooli terviseteaduste ja spordi instituudi direktor ja spordibioloog Kristjan Port mainis ETV saates "Vabariigi kodanikud", et töövõime taastamiseks kasutatakse sageli narkootilisi aineid ning seda teevad ka arstid. Kristjan Porti selgitused

  18. Grain operator miffed at port administration

    Index Scriptorium Estoniae

    2006-01-01

    Ventspils Grain Terminal saatis president Vaira Vike-Freibergale ja mitmetele ministritele kirja sõnumiga, et Ventspilsi Vabasadama (Ventspils Free Port) administratsiooni tegevus takistab terminali äritegevust

  19. An Analysis of Port Service Quality and Customer Satisfaction: The Case of Korean Container Ports

    Directory of Open Access Journals (Sweden)

    Gi Tae Yeo

    2015-12-01

    Full Text Available Ports play a critical role in the economy of many countries and regions. Failure or unreliability of port services can significantly influence port customers—shipping lines and cargo owners—and result in their dissatisfaction. However, what constitutes port service quality (PSQ and its influence on the satisfaction of port customers has not been well investigated in the literature. Therefore, this study investigates the concept of PSQ and its influence on customer satisfaction in the case of Korean container ports. Following a literature review, a conceptual model of PSQ and its influence on customer satisfaction is proposed. The model was validated through a survey of 313 members of the Korean Port Logistics Association (KPLA. Partial least squares structural equation modeling (PLS-SEM was conducted to confirm the PSQ dimensions and to examine their relationship with customer satisfaction using SmartPLS 3.2.1 software. PSQ is found to be a five-factor construct, and its management, and image and social responsibility factors have significant positive effects on customer satisfaction. In addition to its academic contribution, this study also contributes to management practices because port managers can use the PSQ scale to measure their customers’ satisfaction and justify investments in the quality management of port services.

  20. Single-port laparoscopy : an assessment of safety and feasibility

    NARCIS (Netherlands)

    van der Linden, Yoen T. Kim

    2017-01-01

    Nowadays laparoscopic surgery is the standard procedure for many abdominal diseases. Compared with open surgery, laparoscopic surgery offers several advantages, such as reduction of postoperative pain, faster postoperative recovery and shorter admission times to the hospital. The continuous drive to

  1. Occupational hazards to health of port workers.

    Science.gov (United States)

    Wang, Yukun; Zhan, Shuifen; Liu, Yan; Li, Yan

    2017-12-01

    The aim of this article is to reduce the risk of occupational hazards and improve safety conditions by enhancing hazard knowledge and identification as well as improving safety behavior for freight port enterprises. In the article, occupational hazards to health and their prevention measures of freight port enterprises have been summarized through a lot of occupational health evaluation work, experience and understanding. Workers of freight port enterprises confront an equally wide variety of chemical, physical and psychological hazards in production technology, production environment and the course of labor. Such health hazards have been identified, the risks evaluated, the dangers to health notified and effective prevention measures which should be put in place to ensure the health of the port workers summarized. There is still a long way to go for the freight port enterprises to prevent and control the occupational hazards. Except for occupational hazards and their prevention measures, other factors that influence the health of port workers should also be paid attention to, such as age, work history, gender, contraindication and even the occurrence and development rules of occupational hazards in current production conditions.

  2. Time dependent argon glow discharge treatment of Al-alloy samples

    Indian Academy of Sciences (India)

    Aluminium alloy ultra-high vacuum system provides a convenient tool to access the UHV region due to short pump down time, its reduced weight, low cost etc. For UHV systems, aluminium and its alloys are preferred materials to stainless steel. A cylindrical discharge chamger of SS 304 with various ports on it, evacuated by ...

  3. Capacitor discharge engineering

    CERN Document Server

    Früngel, Frank B A

    1976-01-01

    High Speed Pulse Technology, Volume III: Capacitor Discharge Engineering covers the production and practical application of capacitor dischargers for the generation and utilization of high speed pulsed of energy in different forms. This nine-chapter volume discusses the principles of electric current, voltage, X-rays, gamma rays, heat, beams of electrons, neutrons and ions, magnetic fields, sound, and shock waves in gases and liquids. Considerable chapters consider the applications of capacitor discharges, such as impulse hardening of steel, ultrapulse welding of precision parts, X-ray flash t

  4. Plasma return current discharge

    International Nuclear Information System (INIS)

    Mangano, J.A.; Hsia, J.; Jacob, J.H.; Srivastava, B.N.

    1978-01-01

    A discharge technique based on the use of an electron-beam-induced plasma return current to produce and heat large-volume plasmas is described. The results of discharge studies using this technique in attachment-dominated mixtures are presented. The results are found to be adequately described by a simple theory. The electron attachment rate by F 2 inferred from these measurements agrees well with those of other workers. KrF laser action at 248 nm is reported in return-current discharge-excited mixtures of F 2 /Kr/He

  5. Filament Discharge Phenomena in Fingerprint Acquisition by Dielectric Barrier Discharge

    International Nuclear Information System (INIS)

    Weng Ming; Xu Weijun; Liu Qiang

    2007-01-01

    In this paper, the dielectric barrier discharge fingerprint acquisition technique is introduced. The filament discharge phenomena were observed in the process of fingerprint acquisition. The filament discharge reduced the quality of fingerprint images. Obviously, it was necessary to eliminate streamer discharges in order to get good fingerprint images. The streamer discharge was considered to be the cause of the filament discharge in the experiment. The relationship between the critical electric field and the discharge gap was calculated with the Raether's model of streamer discharge. The calculated results and our experiment proved that it would be difficult for the streamer discharge to occur when the discharge gap was narrow. With a narrow discharge gap, the discharge was homogeneous, and the fingerprint images were clear and large in area. The images obtained in the experiment are very suitable for fingerprint identification as they contain more information

  6. Inland Ports in the Republic of Croatia: Approvals for Port Activities instead of Concessions

    Directory of Open Access Journals (Sweden)

    Goran Vojković

    2008-11-01

    Full Text Available According to the 1998 Act on Inland Ports, the right to performall port activities within inland ports of the Republic ofCroatia is given on the basis of concession, obtained throughbidding. It has been noticed in practice that modem businessprocesses and traffic flows are more dynamic than before whenclassic concession relations were created. Also, types andamounts of cargo are changing every couple of years, which isfollowed by quick adjustments, instead of working according torigid and long-term defined decisions and concession contracts.Furthermore, the practice has shown for some activitiesthat the number of port providers (such as ship suppliers,port-agency and freight forwarders should not be limited. Thismeans that the system of a limited number of port providers isimportant only for the activities that require location within aport, as the port area is physically limited. Therefore, the newAct on Navigation and Inland Ports from 2007, whose framehas been completed by sub-law acts during 2008, has replacedthe complex concession system for performing activities in inlandports by a more liberal approval system. On the basis ofthese, higher dynamics of work of port providers is enabled aswell as easier adjustment to market conditions. Furthermore,the main limitation factor that determines the number of portusers becomes the available physical space within a port, whichprovides undisturbed competition, along with larger offer ofport services that do not require that space. It is also importantto point out that the new Act specifically includes distributionand cargo logistics, also processing and improvement of goodsas well as industrial activities including production that enablecomplete economic utilization of port capacities into the existingport activities, thus significantly changing the role of the portitself as a logistic centre.

  7. Implementation and usefulness of single access laparoscopic segmental and total colectomy.

    LENUS (Irish Health Repository)

    Baig, Muhammad N

    2012-02-06

    Aim:  Single access laparoscopic surgery is a recent vogue in the field of minimally invasive colorectal surgery. While selected series have indicated feasibility, we prospectively examined its usefulness for resectional surgery in routine practice. Method:  All patients undergoing laparoscopic colorectal resection over a twelve month period were considered for a single access approach by a single surgical team in a university hospital. This utilised a \\'Glove\\' port via a 3-5 cm periumbilical or stomal site incision with standard rigid laparoscopic instruments then being used. Results:  Of 74 planned laparoscopic colorectal resections, 35 (47%) were performed by this single incision laparoscopic modality without disruption of theatre list efficiency or surgical training obligations. The mean (range) age and BMI of these 25 consecutive right sided resections, 8 total colectomies (7 urgent operations) and 2 anterior resections was 58 (22-82) years and 23.9 (18.6-36.2) kg\\/m(2) respectively. The modal postoperative day of discharge was 4. For right sided resections, the mean (range) post-op stay in those undergoing surgery for benign disease was 4, while for those undergoing operation for neoplasia (n=18, mean age 71 years) it was 5.8 days and the average lymph node harvest was 13. Use of the glove port reduced trocar cost by 58% (€60\\/£53) by allowing use of trocar sleeves alone without obturators. Conclusion:  Single incision laparoscopic surgery is an effective option for abdominal surgery and seems especially suited for laparoscopic-assisted right sided colonic resections. The Glove port technique facilitates procedural frequency and familiarity and proves economically favourable.

  8. Single incision laparoscopic pancreas resection for pancreatic metastasis of renal cell carcinoma.

    Science.gov (United States)

    Barbaros, Umut; Sümer, Aziz; Demirel, Tugrul; Karakullukçu, Nazlı; Batman, Burçin; Içscan, Yalın; Sarıçam, Gülay; Serin, Kürçsat; Loh, Wei-Liang; Dinççağ, Ahmet; Mercan, Selçuk

    2010-01-01

    Transumbilical single incision laparoscopic surgery (SILS) offers excellent cosmetic results and may be associated with decreased postoperative pain, reduced need for analgesia, and thus accelerated recovery. Herein, we report the first transumbilical single incision laparoscopic pancreatectomy case in a patient who had renal cell cancer metastasis on her pancreatic corpus and tail. A 59-year-old female who had metastatic lesions on her pancreas underwent laparoscopic subtotal pancreatectomy through a 2-cm umbilical incision. Single incision pancreatectomy was performed with a special port (SILS port) and articulated equipment. The procedure lasted 330 minutes. Estimated blood loss was 100mL. No perioperative complications occurred. The patient was discharged on the seventh postoperative day with a low-volume (20mL/day) pancreatic fistula that ceased spontaneously. Pathology result of the specimen was renal cell cancer metastases. This is the first reported SILS pancreatectomy case, demonstrating that even advanced surgical procedures can be performed using the SILS technique in well-experienced centers. Transumbilical single incision laparoscopic pancreatectomy is feasible and can be performed safely in experienced centers. SILS may improve cosmetic results and allow accelerated recovery for patients even with malignancy requiring advanced laparoscopic interventions.

  9. Implantable cardioverter defibrillator - discharge

    Science.gov (United States)

    ... medlineplus.gov/ency/patientinstructions/000108.htm Implantable cardioverter defibrillator - discharge To use the sharing features on this page, please enable JavaScript. An implantable cardioverter-defibrillator (ICD) is a device that detects a life- ...

  10. Hypospadias repair - discharge

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000158.htm Hypospadias repair - discharge To use the sharing features on this page, please enable JavaScript. Your child had hypospadias repair to fix a birth defect in which ...

  11. Concussion - child - discharge

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000125.htm Concussion in children - discharge To use the sharing features ... enable JavaScript. Your child was treated for a concussion . This is a mild brain injury that can ...

  12. Urethral discharge culture

    Science.gov (United States)

    ... Genital exudate culture; Culture - genital discharge or exudate; Urethritis - culture ... Augenbraun MH, McCormack WM. Urethritis. In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases . 8th ed. ...

  13. Thyroid gland removal - discharge

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000293.htm Thyroid gland removal - discharge To use the sharing features ... surgery. This will make your scar show less. Thyroid Hormone Replacement You may need to take thyroid ...

  14. Atrial fibrillation - discharge

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000237.htm Atrial fibrillation - discharge To use the sharing features on this ... have been in the hospital because you have atrial fibrillation . This condition occurs when your heart beats faster ...

  15. Asthma - child - discharge

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000001.htm Asthma - child - discharge To use the sharing features on this ... care for your child. Take Charge of Your Child's Asthma at Home Make sure you know the asthma ...

  16. Small bowel resection - discharge

    Science.gov (United States)

    ... Ileostomy and your diet Ileostomy - caring for your stoma Ileostomy - changing your pouch Ileostomy - discharge Ileostomy - what to ask your doctor Low-fiber diet Surgical wound care - open Types of ileostomy Wet-to-dry dressing ...

  17. Kidney stones - lithotripsy - discharge

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000136.htm Kidney stones and lithotripsy - discharge To use the sharing features on this page, please enable JavaScript. A kidney stone is a solid mass made up of tiny ...

  18. Chest radiation - discharge

    Science.gov (United States)

    Radiation - chest - discharge; Cancer - chest radiation; Lymphoma - chest radiation ... When you have radiation treatment for cancer, your body goes through changes. About 2 weeks after your first treatment: It may be hard ...

  19. Breast radiation - discharge

    Science.gov (United States)

    Radiation - breast - discharge ... away around 4 to 6 weeks after the radiation treatment is over. You may notice changes in ... breast looks or feels (if you are getting radiation after a lumpectomy). These changes include: Soreness or ...

  20. Brain radiation - discharge

    Science.gov (United States)

    Radiation - brain - discharge; Cancer-brain radiation; Lymphoma - brain radiation; Leukemia - brain radiation ... Decadron) while you are getting radiation to the brain. It may make you hungrier, cause leg swelling ...

  1. Epilepsy - children - discharge

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000127.htm Epilepsy in children - discharge To use the sharing features ... this page, please enable JavaScript. Your child has epilepsy . People with epilepsy have seizures. A seizure is ...

  2. Epilepsy or seizures - discharge

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000128.htm Epilepsy or seizures - discharge To use the sharing features on this page, please enable JavaScript. You have epilepsy . People with epilepsy have seizures. A seizure is ...

  3. Multiple sclerosis - discharge

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000129.htm Multiple sclerosis - discharge To use the sharing features on this ... Your doctor has told you that you have multiple sclerosis (MS). This disease affects the brain and spinal ...

  4. Pneumonia - adults - discharge

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000017.htm Pneumonia in adults - discharge To use the sharing features on this page, please enable JavaScript. You have pneumonia, which is an infection in your lungs. In ...

  5. Pneumonia - children - discharge

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000011.htm Pneumonia in children - discharge To use the sharing features ... this page, please enable JavaScript. Your child has pneumonia, which is an infection in the lungs. In ...

  6. Hip fracture - discharge

    Science.gov (United States)

    ... Philadelphia, PA: Elsevier; 2017:chap 55. Read More Broken bone Hip fracture surgery Hip pain Leg MRI scan Osteoporosis - overview Patient Instructions Getting your home ready - knee or hip surgery Osteomyelitis - discharge Review ...

  7. Fast RF-CV characterization through high-speed 1-port S-parameter measurements

    NARCIS (Netherlands)

    Herfst, R.W.; Steeneken, P.G.; Tiggelman, M.P.J.; Stulemeijer, J.; Schmitz, Jurriaan

    2010-01-01

    We present a novel method to measure the capacitance-voltage relation of an electronic device. The approach is accurate, very fast, and cost-effective compared to the existing off-the-shelf solutions. Capacitances are determined using a single-frequency 1-port S-parameter setup constructed from

  8. High risk behaviours among in-school female adolescents in Port ...

    African Journals Online (AJOL)

    Available evidence show that these behaviours are interrelated, but most previous studies and intervention measures have focused on single risky behaviour at a time. Aim: To determine the prevalence of behaviours leading to violence, risky sexual behaviours and substance use among female adolescents in Port Harcourt ...

  9. Application of Game Theory and Uncertainty Theory in Port Competition between Hong Kong Port and Shenzhen Port

    Directory of Open Access Journals (Sweden)

    Thi Minh Hoang Do

    2015-06-01

    Full Text Available This paper unveils the strong competition in container cargo between Hong Kong Port which has been emerging as an international maritime center since the 1970s and Shenzhen Port which has recently gained remarkable achievements in the Pearl River Delta region. Among various competing strategies, the study focuses on the long-term one in which two ports will decide to compete by investing in capacity. The purpose of this research is to examine their decision making process and to suggest future strategic actions in the current situation. Within its scope, only economic profit brought back from the investment is considered. For this reason, an uncertain payoff two-person game model is developed where an uncertain factor of demand is involved. In applying Uncertainty theory (Liu, 2013, the two methods to solve the game are introduced, including uncertain statistics and the expected Nash Equilibrium strategy. The results obtained from this research generate meaningful suggestions for future competition plan for the two selected ports, which conclude that Shenzhen is the dominant port in this long-term strategy. Compared to existing works on the same topic, the paper shows its distinctiveness by studying the latest competitive situation with regard to the uncertain demand in the game model.

  10. Single incision laparoscopic-assisted intestinal surgery (SILAIS) in 7 dogs and 1 cat.

    Science.gov (United States)

    Case, J Brad; Ellison, Gary

    2013-06-01

    To describe the clinical findings and short-term outcome in 7 dogs and 1 cat undergoing single-incision laparoscopic-assisted intestinal surgery (SILAIS) using an SILS™ or EndoCone™ port. Prospective case series. Dogs (n = 7) and cat (n = 1). An SILS™ port using three 5-mm instrument cannulas or EndoCone™ port was used to perform an initial limited laparoscopic abdominal exploration. The stomach and descending duodenum were explored intracorporeally and the jejunum through orad descending colon was explored extracorporeally. All intestinal procedures (enterotomy, biopsy, resection, and anastomosis) were performed extracorporeally. Omentalization of affected bowel was accomplished either intracorporeally or extracorporeally. Short-term outcome was determined. SILAIS was completed successfully in all but 1 dog and all animals had a good short-term outcome. Most (n = 5) animals were discharged the day after surgery. SILAIS was performed in a median of 120 minutes (interquartile range; 82-148 minutes) and was associated with a moderate level of difficulty. No major complications occurred but conversion to celiotomy (n = 1) and enlargement of the incision (n = 3) was required because of inability to exteriorize the affected bowel. SILAIS using an SILS™ or EndoCone™ port in dogs and cats is feasible and appears effective in selected cases. Single portal laparoscopic-assisted intestinal surgery might be an effective method of minimizing morbidity in dogs and cats with uncomplicated intestinal disease. © Copyright 2013 by The American College of Veterinary Surgeons.

  11. Management of Artisanal Fishing Port: a Case Study on Labuhanhaji Fishing Port, South Aceh Regency, Aceh Province

    OpenAIRE

    NurJannah, Betri; ', Syaifuddin; Zain, Jonny

    2014-01-01

    A series survey activity was carried out for evaluating management function atlabuanhaji fishing port, South Aceh regency. This research was emphasis on planning, organizing, action and controlling at management pattern of labuhanhaji fishing port. The facilities of fishing port data and daily activities description of staff at labuhanhaji fishing port was used as additional information and consideration in management of labuhanhaji fishing port. Lack of good management was impact on staff an...

  12. Measuring Container Port Complementarity and Substitutability with Automatic Identification System (AIS Data – Studying the Inter-port Relationships in the Oslo Fjord Multi-port Gateway Region

    Directory of Open Access Journals (Sweden)

    Halvor Schøyen

    2017-06-01

    Full Text Available This paper considers the degree of competition among small and medium-sized container ports located in a multi-port gateway region. The level of port competition is evaluated by means of an analysis of the revealed preferences in the port-calling pattern of container feeder vessels deployed on their various links and routes. Unit of analysis is feeder vessel sailing legs and ports stays at/between adjacent container ports. At these ports’ terminals, ships are moored and loading and unloading of containers are performed. The vessel movement data is provided by the Automatic Identification System (AIS. A study of the principal container ports in the Oslo Fjord area is performed, measuring the actual container feeder traffic during the year of 2015. It is demonstrated to which extent ports in the Oslo Fjord region are acting as substitutes, and to which extent they are functioning more as a complement to each other.

  13. The Re-Conceptualization of the Port Supply Chain as a Smart Port Service System: The Case of the Port of Salerno

    Directory of Open Access Journals (Sweden)

    Antonio Botti

    2017-04-01

    Full Text Available This paper proposes a re-conceptualization of the port supply chain as a smart service system, in accordance with the theory of service science. Starting from a short literature review about the port supply chain approach and service science, a new comprehensive framework is provided to better understand seaport dynamics and the creation of competitive port supply chains. The methodology used is the case study approach. The Authors examined the Port of Salerno (Italy and re-conceptualized it as a smart port service system. The originality of the work lies in the application of service science as a lens to re-conceptualize the port supply chain, that allows the implementation of a logistic framework. Both theoretical and practical implications are provided to enrich the literature about port supply chains and to support port operators.

  14. Discharge lamp technologies

    Energy Technology Data Exchange (ETDEWEB)

    Dakin, J. [GE Lighting, Cleveland, OH (United States)

    1994-12-31

    This talk is an overview of discharge lamp technology commonly employed in general lighting, with emphasis on issues pertinent to lighting for plant growth. Since the audience is primarily from the plant growth community, and this begins the light source part of the program, we will start with a brief description of the discharge lamps. Challenges of economics and of thermal management make lamp efficiency a prime concern in controlled environment agriculture, so we will emphasize science considerations relating to discharge lamp efficiency. We will then look at the spectra and ratings of some representative lighting products, and conclude with a discussion of technological advance. A general overview of discharge lighting technology can be found in the book of Waymouth (1971). A recent review of low pressure lighting discharge science is found in Dakin (1991). The pioneering paper of Reiling (1964) provides a good introduction to metal halide discharges. Particularly relevant to lighting for plant growth, a recent and thorough treatment of high pressure Na lamps is found in the book by deGroot and vanVliet (1986). Broad practical aspects of lighting application are thoroughly covered in the IES Lighting Handbook edited by Kaufman (1984).

  15. Chaos in gas discharges

    International Nuclear Information System (INIS)

    Piel, A.

    1993-01-01

    Many gas discharges exhibit natural oscillations which undergo a transition from regular to chaotic behavior by changing an experimental parameter or by applying external modulation. Besides several isolated investigations, two classes of discharge phenomena have been studied in more detail: ionization waves in medium pressure discharges and potential relaxation oscillations in filament cathode discharges at very low pressure. The latter phenomenon will be discussed by comparing experimental results from different discharge arrangements with particle-in-cell simulations and with a model based on the van-der-Pol equation. The filament cathode discharge has two stable modes of operation: the low current anode-glow-mode and the high current temperature-limited-mode, which form the hysteresis curve in the I(U) characteristics. Close to the hysteresis point of the AGM periodic relaxation oscillations occur. The authors demonstrate that the AGM can be understood by ion production in the anode layer, stopping of ions by charge exchange, and trapping in the virtual cathode around the filament. The relaxation oscillations consist of a slow filling phase and a rapid phase that invokes formation of an unstable double-layer, current-spiking, and ion depletion from the cathodic plasma. The relaxation oscillations can be mode-locked by external modulation. Inside a mode-locked state, a period doubling cascade is observed at high modulation degree

  16. Identifying discharge practice training needs.

    Science.gov (United States)

    Lees, L; Emmerson, K

    A training needs analysis tool was developed to identify nurses' discharge training needs and to improve discharge practice. The tool includes 49 elements of discharge practice subdivided into four areas: corporate, operational, clinical and nurse-led discharge. The tool was disseminated to 15 wards on two hospital sites with assistance from the practice development team. Analysis of discharge training is important to assess discharge training needs and to identify staff who may assist with training.

  17. Shutdown dose rates at ITER equatorial ports considering radiation cross-talk from torus cryopump lower port

    Energy Technology Data Exchange (ETDEWEB)

    Juárez, Rafael, E-mail: rjuarez@ind.uned.es [Departamento de Ingeniería Energética, ETSII-UNED, Calle Juan del Rosal 12, Madrid 28040 (Spain); Pampin, Raul [F4E, Torres Diagonal Litoral B3, Josep Pla 2, Barcelona 08019 (Spain); Levesy, Bruno [ITER Organization, 13115 Route de Vinon sur Verdon, St Paul Lez Durance (France); Moro, Fabio [ENEA, Via Enrico Fermi 45, Frascati, Rome (Italy); Suarez, Alejandro [ITER Organization, 13115 Route de Vinon sur Verdon, St Paul Lez Durance (France); Sanz, Javier [Departamento de Ingeniería Energética, ETSII-UNED, Calle Juan del Rosal 12, Madrid 28040 (Spain)

    2015-11-15

    Shutdown dose rates for planned maintenance purposes is an active research field in ITER. In this work the radiation (neutron and gamma) cross-talk between ports in the most conservative case foreseen in ITER is investigated: the presence of a torus cryopump lower port, mostly empty for pumping efficiency reasons. There will be six of those ports: #4, #6, #10, #12, #16 and #18. The equatorial ports placed above them will receive a significant amount of additional radiation affecting the shutdown dose rates during in situ maintenance activities inside the cryostat, and particularly in the port interspace area. In this study a general situation to all the equatorial ports placed above torus cryopump lower ports is considered: a generic diagnostics equatorial port placed above the torus cryopump lower port (LP#4). In terms of shutdown dose rates at equatorial port interspace after 10{sup 6} s of cooling time, 405 μSv/h has been obtained, of which 160 μSv/h (40%) are exclusively due to radiation cross-talk from a torus cryopump lower port. Equatorial port activation due to only “local neutrons” contributes 166 μSv/h at port interspace, showing that radiation cross-talk from such a lower port is a phenomenon comparable in magnitude to the neutron leakage though the equatorial port plug.

  18. Dynamism Patterns of Western Mediterranean Cruise Ports and the Coopetition Relationships Between Major Cruise Ports

    Directory of Open Access Journals (Sweden)

    Esteve-Perez Jeronimo

    2018-03-01

    Full Text Available The Mediterranean Sea has seen an increase of ports hosting cruise ships during the first fifteen years of the 21st century. The increase in cruise ship presence in Mediterranean ports is associated with the dynamism of cruise traffic in recent years, with an average annual growth of 7.45% for cruise passengers worldwide during the period of 1990-2015. Cruise traffic is a maritime business that is primarily composed of two elements, maritime affairs and tourism. This article focuses on the maritime component. With the growth of the cruise industry, cruise lines have been forced to seek new ports to meet demand in an attempt to create differentiated products based on the ports that compose the itinerary. The itinerary system of cruise traffic makes the cruise ports depend on one another to design an itinerary. This feature results in both complex geographic relationships in the design of a cruise itinerary and complex competitive/cooperative relationships between ports. The aim of this article is to present the hierarchic picture of a sample of 29 cruise ports in the Western Mediterranean region during the period of 2000-2015. To achieve this goal, a port size classification is proposed and a shift-share analysis at the inter- and intra-group size level is applied. Moreover, concentration measures are used to determine the changes in the levels of market concentration. Furthermore, a dynamic model is proposed to determine the competitive or cooperative relationships between cruise ports. The proposed model is applied to the largest ports with data from the 2001-2015 period.

  19. Specialization and Flexibility in Port Cargo Handling

    Directory of Open Access Journals (Sweden)

    Hakkı KİŞİ

    2016-11-01

    Full Text Available Cargo handling appears to be the fundamental function of ports. In this context, the question of type of equipment and capacity rate need to be tackled with respect to cargo handling principles. The purpose of this study is to discuss the types of equipment to be used in ports, relating the matter to costs and capacity. The question is studied with a basic economic theoretical approach. Various conditions like port location, size, resources, cargo traffic, ships, etc. are given parameters to dictate the type and specification of the cargo handling equipment. Besides, a simple approach in the context of cost capacity relation can be useful in deciding whether to use specialized or flexible equipment. Port equipment is sometimes expected to be flexible to handle various types of cargo as many as possible and sometimes to be specialized to handle one specific type of cargo. The cases that might be suitable for those alternatives are discussed from an economic point of view in this article. Consequently, effectiveness and efficiency criteria play important roles in determining the handling equipment in ports.

  20. Pollution prevention at ports: clearing the air

    International Nuclear Information System (INIS)

    Bailey, Diane; Solomon, Gina

    2004-01-01

    Seaports are major hubs of economic activity and of environmental pollution in coastal urban areas. Due to increasing global trade, transport of goods through ports has been steadily increasing and will likely continue to increase in the future. Evaluating air pollution impacts of ports requires consideration of numerous sources, including marine vessels, trucks, locomotives, and off-road equipment used for moving cargo. The air quality impacts of ports are significant, with particularly large emissions of diesel exhaust, particulate matter, and nitrogen oxides. The health effects of these air pollutants to residents of local communities include asthma, other respiratory diseases, cardiovascular disease, lung cancer, and premature mortality. In children, there are links with asthma, bronchitis, missed school days, and emergency room visits. The significance of these environmental health impacts requires aggressive efforts to mitigate the problem. Approaches to mitigation encompass a range of possibilities from currently available, low-cost approaches, to more significant investments for cleaner air. Examples of the former include restrictions on truck idling and the use of low-sulfur diesel fuel; the latter includes shore-side power for docked ships, and alternative fuels. A precautionary approach to port-related air pollution would encourage local production of goods in order to reduce marine traffic, greener design for new terminals, and state-of-the art approaches to emissions-control that have been successfully demonstrated at ports throughout the world

  1. Simulation model for port shunting yards

    Science.gov (United States)

    Rusca, A.; Popa, M.; Rosca, E.; Rosca, M.; Dragu, V.; Rusca, F.

    2016-08-01

    Sea ports are important nodes in the supply chain, joining two high capacity transport modes: rail and maritime transport. The huge cargo flows transiting port requires high capacity construction and installation such as berths, large capacity cranes, respectively shunting yards. However, the port shunting yards specificity raises several problems such as: limited access since these are terminus stations for rail network, the in-output of large transit flows of cargo relatively to the scarcity of the departure/arrival of a ship, as well as limited land availability for implementing solutions to serve these flows. It is necessary to identify technological solutions that lead to an answer to these problems. The paper proposed a simulation model developed with ARENA computer simulation software suitable for shunting yards which serve sea ports with access to the rail network. Are investigates the principal aspects of shunting yards and adequate measures to increase their transit capacity. The operation capacity for shunting yards sub-system is assessed taking in consideration the required operating standards and the measure of performance (e.g. waiting time for freight wagons, number of railway line in station, storage area, etc.) of the railway station are computed. The conclusion and results, drawn from simulation, help transports and logistics specialists to test the proposals for improving the port management.

  2. Environmental complexity of a port: Evidence from circulation of the water masses, and composition and contamination of bottom sediments.

    Science.gov (United States)

    Cutroneo, L; Carbone, C; Consani, S; Vagge, G; Canepa, G; Capello, M

    2017-06-15

    Ports are complex environments due to their complicated geometry (quays, channels, and piers), the presence of human activities (vessel traffic, shipyards, industries, and discharges), and natural factors (stream and torrent inputs, sea action, and currents). Taking these factors into consideration, we have examined the marine environment of a port from the point of view of the circulation of the water masses, hydrological characteristics, distribution of the sediment grain-size, mineralogical characteristics, and metal concentrations of the bottom sediments. Our results show that, in the case of the Port of Genoa (north-western Italy), the impact of human activities (such as a coal power-plant, oil depots, shipyards, dredging of the bottom sediments, etc.), natural processes (such as currents, fresh water and sediment inputs from the torrents), and the morphology of the basin, are important factors in the sediment, water, and metal distributions that have given rise to a complex environment. Copyright © 2017 Elsevier Ltd. All rights reserved.

  3. Intra-arterial port implantation for intra-arterial chemotherapy : comparison between PIPS(Percutaneously Implantable Port System) and port system

    International Nuclear Information System (INIS)

    Yoon, Sang Jin; Shim, Hyung Jin; Jung, Hun Young; Choi, Yong Ho; Kim, Yang Soo; Song, In Sup; Kwak, Byung Kook

    1999-01-01

    To compare the techniques and complications of intra-arterial port implantation for intra-arterial chemotherapy between PIPS and the port system. For intra-arterial port implantation, 27 cases in 27 patients were retrospectively evaluated using PIPS(PIPS-200, William Cook Europe, Denmark) while for 21 cases in 19 patients a pediatric venous port system(Port-A-Cath, 5.8F, SIMS Deltec, U. S. A.) was used. All intra-arterial port implantation was performed percuteneously in an angiographic ward. Hepatocellular carcinoma was diagnosed in 18 patients and hepatic metastasis in 16. Peripheral cholangiocarcinoma, and pancreatic gastric, ovarian, renal cell and colon carcinoma were included. We compared the techniques and complications between PIPS and the port system. The follow up period ranged from 23 to 494(mean, 163) days in PIPS and from 12 to 431(mean, 150) days in the port system. In all cases, intra-arterial port implantations were technically successful. Port catheter tips were located in the common hepatic artery(n=8), proper hepatic artery(n=7), right hepatic artery(n=5), gastroduodenal artery(n=2), left hepatic artery(n=1), pancreaticoduodenal artery(n=1), inferior mesenteric artery(n=1), lumbar artery(n=1), and renal artery(n=1) in PIPS, and in the proper hepatic artery(n=6), gastroduodenal artery(n=6), common hepatic artery(n=3), right hepatic artery(n=4), inferior mesenteric artery(n=1), and internal iliac artery(n=1) in the port system. Port chambers were buried in infrainguinal subcutaneous tissue. Using PIPS, complications developed in seven cases(25.9%) and of these, four (57.1%) were catheter or chamber related. In the port system, catheter or chamber related complications developed in four cases(19.0%). Because PIPS and the port system have relative merits and demetrits, successful intra-arterial port implantation is possible if equipment is properly selected

  4. PERFORMANCE ASSESSMENT IN OPERATING DRY PORTS

    Directory of Open Access Journals (Sweden)

    Ciortescu Cezar-Gabriel

    2010-12-01

    Full Text Available In this paper, an approach for recognizing and defining correct and operable performance will be presented with the purpose of evaluating the effectiveness and efficiency of processes in dry ports (inland intermodal hubs. The challenge in evaluating the possible improvements of the underlying processes lies in the special nature and the complex structure of dry ports. It is important to consider that all the processes are highly interconnected and that changes in parameters in one process also have an impact on parameters in other processes. Furthermore, the performance of dry ports, seen as the backbone of the system, has a significant impact on the overall performance of the whole transportation network.

  5. Development Possibilities of the Port of Koper

    Directory of Open Access Journals (Sweden)

    Igor Trupac

    2002-03-01

    Full Text Available The extent to which Slovenia will exploit its good geographictransport position, whether it will be merely a transportcorridor or assume an additional quality (e.g. a distributioncentre or a logistic centre will depend on a cluster of circumstances.The importance will also be laid on how Slovenia willpresent itself and what it will offer to Europe and the rest of theworld. One of its best assets is the Port of Koper (favourable position,good condition, capacities in the frame of the whole logisticsystem.A larger volume of transport and consequently be/fer exploitationof the Port of Koper will in the future depend on increasedtransit. However, to acquire new cargo, the mere installationand modernisation of port infrastructure and rise in thequality of services may not be sufficient: it will also require goodconnections to the hinterland.

  6. INSTITUTIONAL AND MANAGEMENT STRUCTURE OF RUSSIAN ARCTIC SEA PORTS

    Directory of Open Access Journals (Sweden)

    P. A. Bryzgalov

    2012-01-01

    Full Text Available Institutional and management structure of any sea port is a system of interaction between commercial enterprises engaged in cargo operations in port, a subsidiary of Rosmorport FSUE, Sea Port Authority and a number of services (immigration, customs and sanitary-veterinary. Institutional and management structure of some Russian Arctic sea ports is significantly different from the typical one resulting in management problems for these socially significant objects of the Russian Arctic. A plan is proposed to improve the organizational and administrative structure of these ports based on the use of domestic and international experience in port infrastructure management including effective cooperation between the state and the private business.

  7. Port Site Infections After Laparoscopic Cholecystectomy

    Directory of Open Access Journals (Sweden)

    Mumtaz KH Al-Naser

    2017-06-01

    Full Text Available Background: Port site infection (PSI is an infrequent surgical site infection that complicates laparoscopic surgery but has a considerable influence in the overall outcome of laparoscopic cholecystectomy. The aim of this study was to evaluate factors that influence PSI after laparoscopic cholecystectomies and to analyze which of these factors can be modified to avoid PSI in a trail to achieve maximum laparoscopic advantages. Methods: A prospective descriptive qualitative study conducted on patients who underwent laparoscopic cholecystectomies. Swabs were taken for culture & sensitivity in all patients who developed PSI. Exploration under general anaesthesia, for patients, had deep surgical site infections and wound debridement was done, excisional biopsies had been taken for histopathological studies, and tissue samples for polymerase chain reaction for detection of mycobacterium tuberculosis was done. All patients were followed up for six months postoperatively. Factors as gender, site of infected port, type of microorganism, acute versus chronic cholecystitis, type of infection (superficial or deep infection and intraoperative spillage of stones, bile or pus were analyzed in our sample. Results: Port site infection rate was recorded in 40/889 procedures (4.5%, higher rates were observed in male patients 8/89 (8.9%, in acute cholecystitis 13/125 (10.4%, when spillage of bile, stones or pus occurred 24/80 (30%, and at epigastric port 32/40 (80%. Most of the PSI were superficial infections 77.5% with non-specific microorganism 34/40 (85%. Conclusion: There is a significant association of port site infection with spillage of bile, stones, or pus, with the port of gallbladder extraction and with acute cholecystitis. Especial consideration should be taken in chronic deep surgical site infection as mycobacterium tuberculosis could be the cause. Most of the PSIs are superficial and more common in males.

  8. Self-reported post-discharge symptoms following obstetric neuraxial blockade.

    LENUS (Irish Health Repository)

    Hayes, N E

    2010-10-01

    Economic pressures are leading to earlier hospital discharge following delivery, before complications of obstetric neuraxial block may become apparent. Our aim was to estimate the incidence of symptoms presenting post-discharge at a single tertiary obstetric centre.

  9. Environmental risk analysis of oil handling facilities in port areas. Application to Tarragona harbor (NE Spain).

    Science.gov (United States)

    Valdor, Paloma F; Gómez, Aina G; Puente, Araceli

    2015-01-15

    Diffuse pollution from oil spills is a widespread problem in port areas (as a result of fuel supply, navigation and loading/unloading activities). This article presents a method to assess the environmental risk of oil handling facilities in port areas. The method is based on (i) identification of environmental hazards, (ii) characterization of meteorological and oceanographic conditions, (iii) characterization of environmental risk scenarios, and (iv) assessment of environmental risk. The procedure has been tested by application to the Tarragona harbor. The results show that the method is capable of representing (i) specific local pollution cases (i.e., discriminating between products and quantities released by a discharge source), (ii) oceanographic and meteorological conditions (selecting a representative subset data), and (iii) potentially affected areas in probabilistic terms. Accordingly, it can inform the design of monitoring plans to study and control the environmental impact of these facilities, as well as the design of contingency plans. Copyright © 2014 Elsevier Ltd. All rights reserved.

  10. Minimally invasive surgery training using multiple port sites to improve performance.

    Science.gov (United States)

    White, Alan D; Giles, Oscar; Sutherland, Rebekah J; Ziff, Oliver; Mon-Williams, Mark; Wilkie, Richard M; Lodge, J Peter A

    2014-04-01

    Structural learning theory suggests that experiencing motor task variation enables the central nervous system to extract general rules regarding tasks with a similar structure - rules that can subsequently be applied to novel situations. Complex minimally invasive surgery (MIS) requires different port sites, but switching ports alters the limb movements required to produce the same endpoint control of the surgical instrument. The purpose of the present study was to determine if structural learning theory can be applied to MIS to inform training methods. A tablet laptop running bespoke software was placed within a laparoscopic box trainer and connected to a monitor situated at eye level. Participants (right-handed, non-surgeons, mean age = 23.2 years) used a standard laparoscopic grasper to move between locations on the screen. There were two training groups: the M group (n = 10) who trained using multiple port sites, and the S group (n = 10) who trained using a single port site. A novel port site was used as a test of generalization. Performance metrics were a composite of speed and accuracy (SACF) and normalized jerk (NJ; a measure of movement 'smoothness'). The M group showed a statistically significant performance advantage over the S group at test, as indexed by improved SACF (p MIS training. This may have practical applications when training junior surgeons and developing surgical simulation devices.

  11. Severe Weather Guide Mediterranean Ports - 32. Taranto

    Science.gov (United States)

    1990-11-01

    TaTrs n IIa 40 27TN 30 ~.O~O~ . .PAOLO/ GOLFO DI TARANTO K 17TE: 17 16’E Figure 2-3. Port of Taranto, Italy. 2-4 Table 2-1. Summary of hazardous...May 1988: NOARL Meteorologists R. Fett and D. Perryman met with Chief Pilot Augusto De Bellis to obtain much of the information included in this...Oceanographic and Atmospheric Research Laboratory, Atmospheric Directorate*, Monterey, California 93943-5006. FICEURLANT, 1987: Port Directory for Taranto

  12. Operational Optimization in Port Container Terminals

    DEFF Research Database (Denmark)

    As a result of the significant increase in worldwide containerized transportation the development of efficient handling systems in marine terminals has become very important for port competitiveness. In order to optimize the productivity the total handling time for containers in the terminal must...... be minimized. An overview of the different operational problems in port container terminals is presented and an aggregated model and solution approach is shown. Next, there will be focused on the yard storage problem and a mathematical formulation and solution proposals will be presented....

  13. Identifying Anomalous Port-Specific Network Behavior

    Science.gov (United States)

    2010-05-01

    Backscatter 4.3 6.2 1.3 Connection Attempt 4.3 7.6 3.3 User Non-Web activity 3.9 22.0 11.9 SYN flood 3.6 9.0 4.4 Beaconing (Non-443) 3.6 20.5 5.0 Large...flagged events are composed of suspicious events such as beaconing (keep- alives on non-standard ports), SYN floods , scanning, and large data...systems. A port is an integer value between 0 and 65535 that represents a logical connection place for Transmission Control Protocol ( TCP ) and User

  14. Bariatric single incision laparoscopic surgery – review of initial experience

    Directory of Open Access Journals (Sweden)

    Agata Frask

    2011-03-01

    Full Text Available The aim of this review was to assess the results of published experience with bariatric SILS surgery, with a particular focus on treatment feasibility and safety. An EMBASE and MEDLINE database search was performed identifying 13 articles totalling 87 patients in the laparoscopic adjustable gastric banding (LAGB group, 10 patients in the laparoscopic sleeve gastrectomy (LSG group, and 1 patient in the Roux-en-Y SILS group. In most series the learning curve was steep and operating times halved with time, reaching 53 min for LAGB and 90 min for LSG. In single case reports using strict selection criteria patients were discharged up to 24 hours following surgery. Treatment safety was satisfactory. Only two studies reported some minor complications with rates of up to 9.8%, including port malposition, port site infection, and seroma or haematoma formation. There were no complications in other studies. LAGB, LSG and Roux-en-Y surgeries were feasible although technically demanding and difficult.

  15. Atmospheric pressure helium afterglow discharge detector for gas chromatography

    Science.gov (United States)

    Rice, Gary; D'Silva, Arthur P.; Fassel, Velmer A.

    1986-05-06

    An apparatus for providing a simple, low-frequency electrodeless discharge system for atmospheric pressure afterglow generation. A single quartz tube through which a gas mixture is passed is extended beyond a concentric electrode positioned thereabout. A grounding rod is placed directly above the tube outlet to permit optical viewing of the discharge between the electrodes.

  16. Atmospheric pressure helium afterglow discharge detector for gas chromatography

    Science.gov (United States)

    Rice, G.; D'Silva, A.P.; Fassel, V.A.

    1985-04-05

    An apparatus for providing a simple, low-frequency, electrodeless discharge system for atmospheric pressure afterglow generation. A single quartz tube through which a gas mixture is passed is extended beyond a concentric electrode positioned thereabout. A grounding rod is placed directly above the tube outlet to permit optical viewing of the discharge between the electrodes.

  17. Oil based mud discharges

    International Nuclear Information System (INIS)

    Tiesma, R.

    1996-01-01

    The intensive use of oil based muds by the offshore oil and gas industry during the 1980s has caused considerable contamination around drilling sites. A recent investigation on the Norwegian continental shelf indicates that the situation is much worse than previously thought. This material suggests that oil pollution of this kind could be damaging the North Sea's endangered fish stocks, including cod, haddock and plaice. The amount of oil discharged in the UK sector is many times higher than in the other sectors, suggesting that the problem there may be even more serious. The amount discharged in the Dutch and Norwegian sectors are comparable. (author)

  18. [Diagnosis of vaginal discharge].

    Science.gov (United States)

    Böcher, Sidsel; Helmig, Rikke Bek; Arpi, Magnus; Bjerrum, Lars

    2018-01-15

    Changes in vaginal discharge are often caused by imbalance in the vaginal microflora, and laboratory testing is usually of little use, as most microbes detected are commensals. In-office diagnosis in general practice using wet mount microscopy and Amsel criteria is helpful and often sufficient to ensure correct diagnosis and treatment. Laboratory testing of vaginal discharge should only be performed, if sexually transmitted disease is suspected, if there is treatment failure or inconclusive wet mount prior to gynaecological surgery, and in pregnant women with recurrent miscarriage or preterm birth.

  19. Red herring vaginal discharge.

    Science.gov (United States)

    Lee, Jun Hee; Pringle, Kirsty; Rajimwale, Ashok

    2013-09-18

    Labial hair tourniquet syndrome is a rare condition that can be easily misdiagnosed and ultimately lead to irreversible damage. An 11-year-old premenarche girl presented with a 5-day history of pain and swelling in the labia with associated vaginal discharge. The general practitioner treated her with clotrimazole without improvement. On examination, there was an oedematous swelling of the right labia with a proximal hair tourniquet. Local anaesthetic was applied and the hair removed with forceps. There was instant relief of pain and the discharge stopped within 24 h. The patient was sent home with a course of antibiotics.

  20. Analysis of laparoscopic port site complications: A descriptive study.

    Science.gov (United States)

    Karthik, Somu; Augustine, Alfred Joseph; Shibumon, Mundunadackal Madhavan; Pai, Manohar Varadaraya

    2013-04-01

    The rate of port site complications following conventional laparoscopic surgery is about 21 per 100,000 cases. It has shown a proportional rise with increase in the size of the port site incision and trocar. Although rare, complications that occur at the port site include infection, bleeding, and port site hernia. To determine the morbidity associated with ports at the site of their insertion in laparoscopic surgery and to identify risk factors for complications. Prospective descriptive study. In the present descriptive study, a total of 570 patients who underwent laparoscopic surgeries for various ailments between August 2009 and July 2011 at our institute were observed for port site complications prospectively and the complications were reviewed. Descriptive statistical analysis was carried out in the present study. The statistical software, namely, SPSS 15.0 was used for the analysis of the data. Of the 570 patients undergoing laparoscopic surgery, 17 (3%) had developed complications specifically related to the port site during a minimum follow-up of three months; port site infection (PSI) was the most frequent (n = 10, 1.8%), followed by port site bleeding (n = 4, 0.7%), omentum-related complications (n = 2; 0.35%), and port site metastasis (n = 1, 0.175%). Laparoscopic surgeries are associated with minimal port site complications. Complications are related to the increased number of ports. Umbilical port involvement is the commonest. Most complications are manageable with minimal morbidity, and can be further minimized with meticulous surgical technique during entry and exit.

  1. Charging for port reception facilities in North Sea ports: putting theory into practice.

    Science.gov (United States)

    Carpenter, A; Macgill, S

    2001-04-01

    The aim of this paper is to evaluate the charging systems for the use of port reception facilities for waste oil, and to examine the potential impact of the charging elements of the new (late 2000) EU Directive on port reception facilities for ship-generated waste and cargo residues. Experience to date with alternative models for charging is considered. Conclusions are drawn about the effectiveness of the EU Directive as a means of controlling pollution in the North Sea and producing a 'level playing field' between ports.

  2. Nuclear medicine environmental discharge measurement. Final report

    International Nuclear Information System (INIS)

    Gesell, T.F.; Prichard, H.M.; Davis, E.M.; Pirtle, O.L.; DiPietro, W.

    1975-06-01

    The discharge of most man-made radioactive materials to the environment is controlled by Federal, State or local regulatory agencies. Exceptions to this control include the radioactive wastes eliminated by individuals who have undergone diagnostic or therapeutic nuclear medicine procedures. The purpose of this study is to estimate the amount of radioactivity released to the environment via the nuclear medicine pathway for a single sewage drainage basin and to measure the amounts discharged to the environment. The report is organized into a review of previous studies, scope of work, facility data, environmental measurements and estimates of population exposure

  3. Discharges from nuclear power stations

    International Nuclear Information System (INIS)

    1991-02-01

    HM Inspectorate of Pollution commissioned, with authorising responsibilities in England and Wales, a study into the discharges of radioactive effluents from Nuclear Power Stations. The study considered arisings from nuclear power stations in Europe and the USA and the technologies to treat and control the radioactive discharges. This report contains details of the technologies used at many nuclear power stations to treat and control radioactive discharges and gives, where information was available, details of discharges and authorised discharge limits. (author)

  4. Logistics Road map for Smart SeaPorts

    Directory of Open Access Journals (Sweden)

    Khaled Gaber EL Sakty

    2016-12-01

    Full Text Available In the digital world, a smart concept became an essential feature for port organizations to serve as intelligent hubs in the world transport networks.  Smart ports are the trend for the future long-term strategies. Henceforth, ports aims at contributing to sustainable growth by establishing the appropriate conditions for the adoption of new management energy models based on low environmental impact and triggering innovation of both technologies and processes. The scope of this paper is to examine three main issues of smart ports; smart port arctic logistics roadmap, smart port challenges and obstacles in arctic port areas, and the criteria and Key Performance Indicators guiding the assessment of ports against this concept. The main purpose is to develop a smart arctic logistics road map for the future.

  5. Laser therapy in plastic surgery: decolorization in port wine stains

    Science.gov (United States)

    Peszynski-Drews, Cezary; Wolf, Leszek

    1996-03-01

    For the first time laserotherapy is described as a method of port wine stain decolorization in plastic surgery. The authors present their 20-year experience in the treatment of port wine stains with the argon laser and dye laser.

  6. Port wine stain on a child's face (image)

    Science.gov (United States)

    Port wine stains are always present at birth. In an infant, they are flat, pink, vascular lesions. Common locations ... may be present anywhere on the body. Port wine stains may appear in association with other syndromes.

  7. The “diamond port configuration”: A standardised laparoscopic ...

    African Journals Online (AJOL)

    This covered patient position, port insertion, technical aspects of intestinal resection and perioperative management. In particular, a diamond configuration for ports was agreed upon. Data were prospectively collected, and included patient demographics, operative times, conversion rates and postoperative outcomes.

  8. FHWA operations support : port peak pricing program evaluation

    Science.gov (United States)

    2009-01-01

    This report evaluates the applicability, Federal policy implications, and possible public and private sector roles related to peak pricing strategies at ports and intermodal facilities in the U.S. A number of ports and intermodal terminals are consid...

  9. Deepwater Ports in US waters as of August 2013

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Deepwater Port Licensing Program is the application process designed to promote the construction of LNG and oil deepwater ports. This license system was...

  10. System аnalysis concession maritime trade ports

    Directory of Open Access Journals (Sweden)

    Y.V. Shmatock

    2015-03-01

    Full Text Available The article proves the significance of maritime commercial ports as strategic for the country. The urgency of port concessions to improve transport infrastructure. The definition of ports in terms of system analysis and determination of management port. Outlined the sequence of system analysis concessions maritime trade ports in the table. Selection of qualified managers is based on the concession tender under prescribed conditions. These criteria should be considered when determining the concessionaire. These stages of the concession tender. Meeting the needs of the economy, international trade, public inquiries into transportation of goods is not possible without the efficient operation of maritime trade ports. Only complex technological modernization of maritime trade ports will enable them to take leadership positions. Tree depicted objectives effectively manage commercial sea port. Therefore, initiation of concessions needs to implement measures to achieve the talented and skillful result.

  11. The Port Elizabeth Electric Tramway Case: Is the Meaning Ascribed ...

    African Journals Online (AJOL)

    The Port Elizabeth Electric Tramway Case: Is the Meaning Ascribed to the Phrase “In the Production of the Income” By Watermeyer AJP in the Port Elizabeth Electric Tramway Case Still Religiously Followed Today?

  12. Heart bypass surgery - discharge

    Science.gov (United States)

    ... trouble with short-term memory or feel confused ("fuzzy-headed") Be tired or not have much energy ... or a fever over 101°F (38.3°C). Alternative Names Off-pump coronary artery bypass - discharge; ...

  13. Electrical Discharge Machining.

    Science.gov (United States)

    Montgomery, C. M.

    The manual is for use by students learning electrical discharge machining (EDM). It consists of eight units divided into several lessons, each designed to meet one of the stated objectives for the unit. The units deal with: introduction to and advantages of EDM, the EDM process, basic components of EDM, reaction between forming tool and workpiece,…

  14. MANAGEMENT OF VAGINAL DISCHARGE

    African Journals Online (AJOL)

    Enrique

    , an oral antifungal should be used weekly, e.g. 100 mg flucona- zole.7. The discharge of candidiasis is curd- like and adherent due to direct hyphal invasion of epithelial tissues resulting in erythema of the vaginal epithelium. Clinical diagnosis ...

  15. Ulcerative colitis - discharge

    Science.gov (United States)

    ... doctor - child Diarrhea - what to ask your health care provider - adult Enteral nutrition - child - managing problems Gastrostomy feeding tube - bolus Ileostomy and your child Ileostomy and your diet Ileostomy - caring for your stoma Ileostomy - discharge Jejunostomy feeding tube Living with your ...

  16. Crohn disease - discharge

    Science.gov (United States)

    ... doctor - child Diarrhea - what to ask your health care provider - adult Enteral nutrition - child - managing problems Gastrostomy feeding tube - bolus Ileostomy and your child Ileostomy and your diet Ileostomy - caring for your stoma Ileostomy - discharge Jejunostomy feeding tube Living with your ...

  17. Cosmetic breast surgery - discharge

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000273.htm Cosmetic breast surgery - discharge To use the sharing features on this ... Editorial team. Related MedlinePlus Health Topics Plastic and Cosmetic Surgery Browse the Encyclopedia A.D.A.M., Inc. ...

  18. 7 CFR 352.9 - Ports.

    Science.gov (United States)

    2010-01-01

    ... the Department of Agriculture (Continued) ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE PLANT QUARANTINE SAFEGUARD REGULATIONS § 352.9 Ports. The arrival, unloading, landing, or possession of plants, plant products, plant pests, soil, or other products or articles subject to this part...

  19. HomePort ZigBee Adapter

    DEFF Research Database (Denmark)

    Pedersen, Thomas; Smedegaard, Jacob Haubach; Hansen, Rene

    the existing tool, Homeport, to act as a middleware and bridge between ConLAN's existing network and the ZigBee network. This report primarily discusses three possible solutions for constructing this bridge and current status on the implementation of a Develco SmartAMM and Zigbee stack for HomePort....

  20. Photoacoustic imaging of port-wine stains

    NARCIS (Netherlands)

    Kolkman, Roy G. M.; Mulder, Miranda J.; Glade, Conrad P.; Steenbergen, Wiendelt; van Leeuwen, Ton G.

    2008-01-01

    BACKGROUND AND OBJECTIVE: To optimize laser therapy of port-wine stains (PWSs), information about the vasculature as well as lesion depth is valuable. In this study we investigated the use of photoacoustic imaging (PAI) to obtain this information. STUDY DESIGN/MATERIALS AND METHODS: PAI uses pulsed

  1. Photoacoustic Imaging of Port-Wine Stains

    NARCIS (Netherlands)

    Kolkman, R.G.M.; Mulder, M.J.; Mulder, Miranda J.; Glade, Conrad P.; Steenbergen, Wiendelt; van Leeuwen, Ton

    2008-01-01

    Background and Objective: To optimize laser therapy of port-wine stains (PWSs), information about the vasculature as well as lesion depth is valuable. In this study we investigated the use of photoacoustic imaging (PAI) to obtain this information. - Study Design/Materials and Methods: PAI uses

  2. Port-Hamiltonian Systems on Open Graphs

    NARCIS (Netherlands)

    Schaft, A.J. van der; Maschke, B.M.

    2010-01-01

    In this talk we discuss how to define in an intrinsic manner port-Hamiltonian dynamics on open graphs. Open graphs are graphs where some of the vertices are boundary vertices (terminals), which allow interconnection with other systems. We show that a directed graph carries two natural Dirac

  3. environmental education for port elizabeth schools

    African Journals Online (AJOL)

    contributed to tne development of environmental stud1es for primary schools in Port Elizabeth. At first, the Education. Officer of the museum led all excursions to study sites. In or:der to encourage ... educative function in the formal sector. Lesson ... the development of environmental education programmes for higher primary ...

  4. Stuctures in hydraulic engineering : Port Infrastructure

    NARCIS (Netherlands)

    de Gijt, J.G.

    2007-01-01

    Lecture notes on the planning and design of port infrastructure, like quay walls as gravity structures, sheet-piles, jetties and ro-ro facilties; anchoring of walls. Discussion of the loads on quay walls, jetties and dolphins. Construction of quay walls. Risk analysis, fender design. Scour problems

  5. Remote Identification of Port Scan Toolchains

    NARCIS (Netherlands)

    Ghiëtte, Vincent; Blenn, N.; Doerr, C.; Badra, Mohamad; Pau, Giovanni; Vassiliou, Vasos

    2016-01-01

    Port scans are typically at the begin of a chain of events that will lead to the attack and exploitation of a host over a network. Since building an effective defense relies on information what kind of threat an organization is facing, threat intelligence outlining an actor’s modus operandi is a

  6. Role of Flexibility in Sustainable Port Development

    NARCIS (Netherlands)

    Taneja, P.; Vellinga, T.; Ros, R.

    2012-01-01

    Sustainability has become a high profile objective in all aspects of our lives, including the development of our infrastructures. Flexibility can enhance sustainability endeavors, yet its contribution is not clear to most. In this paper we investigate the role of flexibility in sustainable port

  7. 33 CFR 165.761 - Security Zones; Port of Palm Beach, Port Everglades, Port of Miami, and Port of Key West, Florida.

    Science.gov (United States)

    2010-07-01

    ... of the law enforcement boats and cruise ship tenders which will mark a transit lane in channel. (ii... east of the law enforcement vessels and cruise ship tenders, which will mark a transit lane in the..., tug boats and contracted security vessels may assist the Coast Guard Captain of the Port under the...

  8. The Global View on Port State Control

    NARCIS (Netherlands)

    S. Knapp (Sabine); Ph.H.B.F. Franses (Philip Hans)

    2006-01-01

    textabstractThis report is the second part of a PhD project entitled "The Econometrics of Maritime Safety – Recommendations to Enhance Safety at Sea" which is based on 183,000 port state control inspections and 11,700 casualties from various data sources. Its overall objective is to provide

  9. Port and EGR Mass Flow Sensors

    DEFF Research Database (Denmark)

    Hendricks, Elbert

    1998-01-01

    The note documents briefly work done on what is thought to be a new method of measurement of the pulsating flow in the intake port ot and SI engine and in the EGR returen line. The work reviewed has been carried out in close cooperation with Civ. Ing. Michael Føns, Civ. Ing. Christian Jepsen...

  10. Development of the Bosaso Port Somalia

    DEFF Research Database (Denmark)

    Burcharth, Hans F.

    1988-01-01

    The first stage of the port of Bosaso will be completed within half a year's time. It offers accomodation for one general cargo/Ro-Ro vessel of 5,000 DWT plus 350 meters of quays for small cargo vessels and fishing boats. Hinterlands for handling of the goods are arranged along the quays. Areas...

  11. Optimizing yard operations in port container terminals

    DEFF Research Database (Denmark)

    Kallehauge, Louise Sibbesen

    2005-01-01

    This paper deals with the problem of positioning containers in a yard block of a port container terminal. The objective of the container positioning problem (CPP) is to minimise the total handling time in the block, i.e. the time required for storage and reshuffling of containers. One...

  12. Port Security in the Persian Gulf

    Science.gov (United States)

    2008-06-01

    34 office space, and "retail outlets and commercial showrooms for yachts, ships and boats, as well as for high-end design services.蔼 Realizing...terminals and preserve our rights.薟 The riches coming from access to Basra’s ports and the region’s maritime infrastructure virtually guarantee

  13. Managing Port-Related Supply Chain Disruptions: A Conceptual Paper

    Directory of Open Access Journals (Sweden)

    Hui Shan Loh

    2014-04-01

    This paper synthesizes the current literature into a management model that seeks to target operational deficiencies at ports. The management model is operationalized in three tiers, from the top management level to the front-line employees, with characteristics from risk management, business continuity management and quality management theories. The proposed model serves as a universal guide in assisting port management in managing port-related disruptions and seeks to reduce the occurrences of port-related supply chain disruption threats.

  14. National Port Strategy Assessment: Reducing Air Pollution and Greenhouse Gases at U.S. Ports

    Science.gov (United States)

    The assessment finds that air pollution at the Nation's ports can be significantly reduced by implementing currently available strategies and technologies to reduce emissions of harmful pollutants from diesel vehicles and engines.

  15. Process for evaluating overweight truck corridors serving coastal port regions and border ports of entry

    Science.gov (United States)

    2017-08-01

    Coastal and inland ports, regional mobility authorities, cities, and counties located near or along the Texas Gulf Coast, and along the border with Mexico, have been granted authority by the state legislature to establish permitted overweight truck c...

  16. Low-field helicon discharges

    Science.gov (United States)

    Chen, F. F.; Jiang, X.; Evans, J. D.; Tynan, G.; Arnush, D.

    1997-05-01

    Operation of helicon discharges at magnetic fields B0 below 100 G is of interest for plasma etching and deposition reactors if high ion flux can be maintained with reduced field requirements. The theory of coupled helicon and Trivelpiece - Gould modes is summarized for uniform B0. Initial results from two experiments are reported. The first has a single 5 cm diameter tube with B0=0-100G injecting plasma into a field-free region. The second contains a two-dimensional array of seven such tubes covering a large area. Densities and density profiles are measured for various fields, RF powers and gas pressures. The highest density generally occurs at zero field. Because of the non-uniformity in B0, direct comparison with theory cannot yet be made.

  17. Computations of total sediment discharge, Niobrara River near Cody, Nebraska

    Science.gov (United States)

    Colby, Bruce R.; Hembree, C.H.

    1955-01-01

    appreciable quantities. Hence, total sediment discharges were obtained by adding computed discharges of sediment larger than 0.125 millimeter to measured discharges of sediment smaller than 0.125 millimeter. The size distributions of the computed sediment discharge compared poorly with the size distributions of sediment discharge at the contracted section. Ten sediment discharges computed from the Einstein procedure as applied to a single section averaged several times the measured sediment discharge for the contracted section and gave size distributions that were unsatisfactory. The Einstein procedure was modified to compute total sediment discharge at an alluvial section from readily measurable field data. The modified procedure uses measurements of bed-material particle sizes, suspended-sediment concentrations and particle sizes from depth-integrated samples, streamflow, and water temperatures. Computations of total sediment discharge were made by using this modified procedure, some for the section at the gaging station and some for each of two other relatively unconfined sections. The size distributions of the computed and the measured sediment discharges agreed reasonably well. Major advantages of this modified procedure include applicability to a single section rather than to a reach of channel, use of measured velocity instead of water-surface slope, use of depth-integrated samples, and apparently fair accuracy for computing both total sediment discharge and approximate size distribution of the sediment. Because of these advantages this modified procedure is being further studied to increase its accuracy, to simplify the required computations, and to define its limitations. In the development of the modified procedure, some relationships concerning theories of sediment transport were reviewed and checked against field data. Vertical distributions of suspended sediment at relatively unconfined sections did not agree well with theoretical dist

  18. Generic Diagnostic Port Integration for the Equatorial Port Plug of ITER

    International Nuclear Information System (INIS)

    Doceul, L.; Chappuis, Ph.; Portafaix, Ch.; Guillaume, T.; Bruyere, Ch.; Walker, Ch.; Ingesson, Ch.; Ciattaglia, E.; Salasca, S.; Eric, T.

    2006-01-01

    ITER requires an extensive set of diagnostic systems to provide several key functions such as protection of the device, input to plasma control systems and evaluation of the plasma performance. Most of these diagnostics system are to be integrated in port plugs, which are water cooled stainless steel structures (approximately: 50 t, 2 m x 2 m x 4 m) inserted into the vacuum-vessel ports. The port plug must perform basic functions such as providing neutron and gamma shielding, supporting the first wall armour and shielding blanket material, closing the vacuum vessel ports, supporting the diagnostic equipment (within the primary vacuum, on the primary vacuum boundary and in the port interspace). CEA (Commissariat l'Energie Atomique) has contributed to the engineering activities on the port plugs and has more particularly focused on the design and diagnostic integration in the representative equatorial port plug EQ01. The specific CEA contributions were to perform the general engineering, structural and thermal analysis. These detailed analysis have highlighted some design issues which were worked out through different solutions. This paper will contain the description of the engineering activities performed such as: - The conceptual design of the EQ01 and the associated diagnostics, such as the visible and infrared optical diagnostic, - The static mechanical calculations, taking into account the electromagnetic loads occurring during fast transient plasma events, - The dynamic calculation constituted of modal and transient analysis under the same electromagnetic loads to estimate the dynamic amplification factor due to the resonance phenomenon, - The thermal assessment under the neutronic load of the water-cooled stainless steel structure, - The seismic response of the port plug inside the vacuum vessel, taking into account the ground spectra and soil conditions in the Cadarache site. (author)

  19. 9 CFR 97.1 - Overtime work at laboratories, border ports, ocean ports, and airports. 1

    Science.gov (United States)

    2010-01-01

    ... ports, ocean ports, and airports. 1 97.1 Section 97.1 Animals and Animal Products ANIMAL AND PLANT... POULTRY) AND ANIMAL PRODUCTS OVERTIME SERVICES RELATING TO IMPORTS AND EXPORTS § 97.1 Overtime work at... performed. See part 97.2. One-half CTT is 1/2 of the full CTT period. (c) As used in this section— (1) The...

  20. Acute Appendicitis in Port Harcourt, Nigeria | Mangete | Orient ...

    African Journals Online (AJOL)

    Objective: To determine the pattern of occurrence of acute appendicitis in the University of Port Harcourt Teaching Hospital, Port Harcourt, Nigeria. Methods: A prospective study of patients who were admitted for acute appendicitis at the University of Port Harcourt Teaching Hospital in the 6 year period from 1984 to 1989 ...

  1. Port viability for choice making among shipping companies in West ...

    African Journals Online (AJOL)

    In this paper, the study of port viability for choice making among shipping companies in West Africa sub-region trade route was conducted. Discriminant analysis was used to ascertain the consistency of the attributes of ports that establish their overall attractiveness to the carriers. The critical valued port attributes deduced ...

  2. Performance Effects of the Corporatisation of Port of Rotterdam Authority

    NARCIS (Netherlands)

    P.W. de Langen (Peter); C. Heij (Christiaan)

    2013-01-01

    textabstractPort of Rotterdam Authority is a publicly owned but corporatized port development company. In 2004, this organisation was transformed from a municipal department to an independently operating company. The corporatisation intended to improve the overall performance of the port of

  3. Experiences in porting NASTRAN (R) to non-traditional platforms

    Science.gov (United States)

    Davis, Gregory L.; Norton, Robert L.

    1991-01-01

    The 1990 UNIX version of NASTRAN was ported to two new platforms that are not supported by COSMIC: the Sun SPARC workstation and the Apple Macintosh using the A/UX version of UNIX. The experiences of the authers in porting NASTRAN is summarized here. Suggestions for users who might attempt similar ports are given.

  4. digital control of external devices through the parallel port

    African Journals Online (AJOL)

    2012-11-03

    Nov 3, 2012 ... Abstract. In this paper we carry out the digital control of external devices using the parallel port of a computer. The PC parallel port adapter that is specifically designed to attach printers has been found to be useful as a general input/output port for any device or application that matches its input/output ...

  5. RIVERS AND PORTS IN TRANSPORT HISTORY OF CAMEROON ...

    African Journals Online (AJOL)

    Dean SPGS NAU

    British merchants followed in 1836 and 1840 and 1841 the abolitionists led by Fowell Buxton persuaded the British government ... During the era of slave trade, these ports were used for the shipment of slaves to the Americas. During the so called ..... its port partly answers this question. Through the port we start to. 4 File Ba ...

  6. Efficacy of the subcostal transversus abdominis plane block in laparoscopic cholecystectomy: Comparison with conventional port-site infiltration

    Directory of Open Access Journals (Sweden)

    S Tolchard

    2012-01-01

    Full Text Available Background: Pain experienced following laparoscopic cholecystectomy is largely contributed by the anterior abdominal wall incisions. This study investigated whether subcostal transversus abdominis (STA block was superior to traditional port-site infiltration of local anesthetic in reducing postoperative pain, opioid consumption, and time for recovery. Materials and Methods: Forty-three patients presenting for day case laparoscopic cholecystectomy were randomly allocated to receive either an ultrasound-guided STA block (n = 21 or port-site infiltration of local anesthetic (n = 22. Visual analog pain scores were measured at 1 and 4 h postoperatively to assess pain severity, and opioid requirement was measured in recovery and up to 8 h postoperatively. The time to discharge from recovery was recorded. Results: STA block resulted in a significant reduction in serial visual pain analog score values and significantly reduced the fentanyl requirement in recovery by >35% compared to the group that received local port-site infiltration (median 0.9 vs. 1.5 ΅cg/kg. Furthermore, STA block was associated with nearly a 50% reduction in overall 8-h equivalent morphine consumption (median 10 mg vs. 19 mg. In addition, STA block significantly reduced median time to discharge from recovery from 110 to 65 min. Conclusion: The results suggest that STA block provides superior postoperative analgesia and reduces opioid requirement following laparoscopic cholecystectomy. It may also improve theater efficiency by reducing time to discharge from the recovery unit.

  7. Investigation of orifice aeroacoustics by means of multi-port methods

    Science.gov (United States)

    Sack, Stefan; Åbom, Mats

    2017-10-01

    Comprehensive methods to cascade active multi-ports, e.g., for acoustic network prediction, have until now only been available for plane waves. This paper presents procedures to combine multi-ports with an arbitrary number of considered duct modes. A multi-port method is used to extract complex mode amplitudes from experimental data of single and tandem in-duct orifice plates for Helmholtz numbers up to around 4 and, hence, beyond the cut-on of several higher order modes. The theory of connecting single multi-ports to linear cascades is derived for the passive properties (the scattering of the system) and the active properties (the source cross-spectrum matrix of the system). One scope of this paper is to investigate the influence of the hydrodynamic near field on the accuracy of both the passive and the active predictions in multi-port cascades. The scattering and the source cross-spectrum matrix of tandem orifice configurations is measured for three cases, namely, with a distance between the plates of 10 duct diameter, for which the downstream orifice is outside the jet of the upstream orifice, 4 duct diameter, and 2 duct diameter (both inside the jet). The results are compared with predictions from single orifice measurements. It is shown that the scattering is only sensitive to disturbed inflow in certain frequency ranges where coupling between the flow and sound field exists, whereas the source cross-spectrum matrix is very sensitive to disturbed inflow for all frequencies. An important part of the analysis is based on an eigenvalue analysis of the scattering matrix and the source cross-spectrum matrix to evaluate the potential of sound amplification and dominant source mechanisms.

  8. Single incision multi-trocar hepatic cyst excision with partial splenectomy

    Directory of Open Access Journals (Sweden)

    Palanivelu Chinnusamy

    2013-01-01

    Full Text Available Introduction: Surgery has the potential to remove the entire hydatid cyst and can lead to complete cure. Presence of hydatid cysts in multiple abdominal organs imposes special challenges for laparoscopic management. The patient position and port placement for one organ may not be adequate for other and proper exposure in hydatid cyst is of paramount importance to prevent spillage and complete removal of the cyst. Single incision multi-trocar technique has a unique advantage of allowing surgeon to work in different quadrants of abdomen using the same incision and ports. We report in this paper the first Laparo-endoscopic single-site hepatic cyst excision with partial splenectomy for hydatid cyst in liver and spleen using conventional laparoscopic instruments. Patient and Technique: The procedure was performed on a 64 year old female diagnosed to have Hydatid cyst in segment VIII of liver and another cyst in lower pole of spleen a transverse 3 cm incision was made 6 cm above umbilicus and was deepened up to fascia. Two 10mm and one 5mm ports were inserted. Procedure was completed in 160 minutes without any intra-operative complication. There were no post-operative complication and patient was discharged on day 5. Conclusion: Single incision multi-trocar surgery has cosmetic advantage over standard laparoscopic approach. It is even more marked when two procedures are combined in different quadrants of abdomen. As this is a rare combination procedure so it remains to be determined if this technique offers additional advantages of decreased analgesia, decreased hospital stay or cost effectiveness.

  9. Single incision multi-trocar hepatic cyst excision with partial splenectomy

    Science.gov (United States)

    Chinnusamy, Palanivelu; Ahluwalia, Jasmeet Singh; Palanisamy, Senthilnathan; Seshiyer, Rajan Pidigu

    2013-01-01

    INTRODUCTION: Surgery has the potential to remove the entire hydatid cyst and can lead to complete cure. Presence of hydatid cysts in multiple abdominal organs imposes special challenges for laparoscopic management. The patient position and port placement for one organ may not be adequate for other and proper exposure in hydatid cyst is of paramount importance to prevent spillage and complete removal of the cyst. Single incision multi-trocar technique has a unique advantage of allowing surgeon to work in different quadrants of abdomen using the same incision and ports. We report in this paper the first Laparo-endoscopic single-site hepatic cyst excision with partial splenectomy for hydatid cyst in liver and spleen using conventional laparoscopic instruments. PATIENT AND TECHNIQUE: The procedure was performed on a 64 year old female diagnosed to have Hydatid cyst in segment VIII of liver and another cyst in lower pole of spleen a transverse 3 cm incision was made 6 cm above umbilicus and was deepened up to fascia. Two 10mm and one 5mm ports were inserted. Procedure was completed in 160 minutes without any intra-operative complication. There were no post-operative complication and patient was discharged on day 5. CONCLUSION: Single incision multi-trocar surgery has cosmetic advantage over standard laparoscopic approach. It is even more marked when two procedures are combined in different quadrants of abdomen. As this is a rare combination procedure so it remains to be determined if this technique offers additional advantages of decreased analgesia, decreased hospital stay or cost effectiveness. PMID:23741118

  10. Dual-Electrical-Port Control of Cascaded Brushless Doubly-Fed Induction Drive for EV/HEV Applications

    DEFF Research Database (Denmark)

    Han, Peng; Cheng, Ming; Chen, Zhe

    2016-01-01

    This paper presents a dual-electrical-port control scheme of cascaded brushless doubly-fed induction machine (CBDFIM) for EV/HEV applications aiming at achieving doubled constant torque and constant power regions compared to its singly-fed counterpart with the same equivalent pole pair number....... The proposed control method enables the synchronous control of both current inputs of power winding and control winding and as a consequence, not only the control complexity, but also slip frequency and core loss are significantly reduced in comparison with the single-electrical-port control scheme. Computer...

  11. The Discharge Coefficient of a Centre-Pivot Roof Window

    DEFF Research Database (Denmark)

    Iqbal, Ahsan; Afshari, Alireza; Nielsen, Peter V.

    2012-01-01

    Accuracy in estimation of airflow through windows is the key parameter for modelling and designing of naturally ventilated buildings. The flow through windows is usually described by the orifice flow plate equation. This equation involves the discharge coefficient. In practice, often a constant...... value of discharge coefficient is used. The constant value of discharge coefficient leads to deceptive airflow estimation in the cases of centre-pivot roof windows. The object of this paper is to study and evaluate the discharge coefficient of the centre pivot roof window. Focus is given...... on unidirectional flows i.e. inflow and outflow. CFD techniques are used to predict the airflow through the modelled window. Analytical orifice flow equation is used to calculate the discharge coefficient. Results are compared with experimental results. It is concluded that the single value of the discharge...

  12. Vessel Sewage Discharges: No-Discharge Zones (NDZs)

    Science.gov (United States)

    States may petition the EPA to establish areas, called no discharge zones (NDZs), where vessel sewage discharges are prohibited. This page describes how NDZs are designated, the types of designations, who enforces them, and how to comply.

  13. 19 CFR 4.89 - Vessels in foreign trade proceeding via domestic ports and touching at intermediate foreign ports.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Vessels in foreign trade proceeding via domestic ports and touching at intermediate foreign ports. 4.89 Section 4.89 Customs Duties U.S. CUSTOMS AND... DOMESTIC TRADES Coastwise Procedure § 4.89 Vessels in foreign trade proceeding via domestic ports and...

  14. 50 CFR Table 14a to Part 679 - Port of Landing Codes 1, Alaska

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 9 2010-10-01 2010-10-01 false Port of Landing Codes 1, Alaska 14a Table 14a to Part 679 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND... Port Bailey 159 PTB Port Graham 160 GRM Port Lions 316 LIO Port Moller 317 MOL Port Protection 161 PRO...

  15. GASEOUS DISCHARGE DEVICE

    Science.gov (United States)

    Gow, J.D.

    1961-01-10

    An extremely compact two-terminal gaseous discharge device is described that is capable of producing neutrons in copious quantities, relatively high energy ions, intense x rays, and the like. Principal novelty resides in the provision of a crossed electric-magnetic field region in the discharge envelope that traps electrons and accelerates them to very high energies to provide an intense ionizing medium adjacent the anode of the device for ionizing gas therein with extremely high efficiency. In addition, the crossed-field trapping region holds the electrons close to the anode whereby the acceleration of ions to the cathode is not materially effected by the electron sheath and the ions assume substantially the full energy of the anodecathode potential drop. (auth)

  16. Discharge pulse phenomenology

    Science.gov (United States)

    Frederickson, A. R.

    1985-01-01

    A model was developed which places radiation induced discharge pulse results into a unified conceptual framework. Only two phenomena are required to interpret all space and laboratory results: (1) radiation produces large electrostatic fields inside insulators via the trapping of a net space charge density; and (2) the electrostatic fields initiate discharge streamer plasmas similar to those investigated in high voltage electrical insulation materials; these streamer plasmas generate the pulsing phenomena. The apparent variability and diversity of results seen is an inherent feature of the plasma streamer mechanism acting in the electric fields which is created by irradiation of the dielectrics. The implications of the model are extensive and lead to constraints over what can be done about spacecraft pulsing.

  17. Monitoring of lightning discharge

    International Nuclear Information System (INIS)

    Grigor'ev, V.A.

    2001-01-01

    The paper presents a brief description of a lightning discharge recording system developed at the NPO 'Monitoring Techniques' under the direction of V.M. Moskolenko (Moscow). The system provides information about dangerous environmental occurrences such as tornados and hurricanes, making the forecast of extreme situations possible, especially in the areas of dangerous industries and objects. The created automatic system can be useful in solving the tasks relating to nuclear test monitoring. (author)

  18. The human discharge chain

    Science.gov (United States)

    Dudley, Scott C.; Heerema, Bret D.; Haaland, Ryan K.

    1997-06-01

    The common classroom demonstration of a human chain, charged by a Van de Graaff generator, and then discharged via the person at the end of the chain touching ground, is analyzed as a capacitor and resistor circuit model. The energy deposited in each person in the chain is determined. Further, the effect of increasing energy deposited in the person who touched ground, as the number of people in the chain is increased, is shown and quantified.

  19. PC interfacing using Centronics, RS232 and game ports

    CERN Document Server

    An, Pei

    1998-01-01

    The main links with your PC and the outside world are the centronic port, used for connecting the printer, the RS232 port, used for the mouse, and the games port for a joystick. This book explores how these input/output (I/O) ports can be put to use through a range of other interfacing applications. This is especially useful for laptop and palmtop PCs which cannot be fitted with internal I/O cards. A novel approach is taken by this book, combining the hardware through which the ports can be explored, and the software programming needed to carry out a range of experiments.Circuits are p

  20. The Port Hope area initiative municipal involvement

    International Nuclear Information System (INIS)

    Austin, Rick; Stevenson, Mark

    2006-01-01

    Port Hope (Canada) contains one of the world's oldest nuclear facility sites. From the 1930's through to the 1970's, processing residues from radium refining facilities located at the Port Hope Harbour were being stored and/or deposited on numerous sites throughout the municipality. For a variety of reasons, including spillage of material during transportation and un-monitored or unauthorized diversion of materials, many private and public properties in the municipality were contaminated with low level radioactive waste. Over the past 30 years, the community has demanded that the nuclear industry and the federal government clean up the mess left in Port Hope. In the 1980's and 1990's, the federal government sought to fulfill its commitment to clean up over one million cubic metres of contaminated material remaining in Port Hope but was unable to find a solution. The Low Level Radioactive Waste Management Siting Task Force worked in trying to find a home for historic LLRW in the 1980's and 1990's. It is only within the past 6 years that Port Hope's community began to see the 'light at the end of the tunnel'. And, the light began to shine when the communities took the issue of long term management of the waste into their own hands and proposed possible solutions to the federal government. So the Port Hope Area Initiative is a community-based initiative. In this paper the author presents some of the reasons for success (so far) and some opportunities and challenges that his municipality, and specifically municipal Council, faces as a partner in this Environmental Assessment and project development process. He addresses some of the key elements of the Project that he believes have led to the success of the Project to this point, including: the Legal Agreement and Agreement Monitoring process; the Property Value Protection Program; the Hosting Fee; the Municipal veto on some decisions; the end Use as an asset to the Community; the Value of Peer Review. He also touches

  1. Jet expansion module for liquid-sampled GC-discharge ionization detection of liquefied gases.

    Science.gov (United States)

    May, Michael; Poeppelmeier, Todd; Kuo, John

    2003-03-01

    A rugged jet expansion module was designed, built, and utilized to sample liquefied gas for gas chromatography-discharge ionization detector (GC-DID) analysis. The module is inserted at an intermediate stage between a higher pressure sample cylinder and lower pressure gas injection manifold. The title jet module permits selection of liquid-phase or vapor-phase sampling by setting the valve-cylinder orientation up or down (relative to gravity). It consists of a four-way stainless steel cross, plus the following components connected to pipe thread ports: (1) mechanical pressure gauge, -15 to +30 psig; (2) threaded nut with 0.010-in. jet orifice (connect to sample cylinder valve); (3) bellows valve (connect to GC manifold); (4) bellows valve (connect to expansion cylinder). Making use of the jet module, measurement of air concentration in [15N]ammonia and sulfur hexafluoride (single-component) samples was found to be significantly lower in the liquid phase by GC-DID. This compact apparatus enables phase-selective sampling, reduces primary manifold contamination, and improves operator safety.

  2. Vaginal itching and discharge - child

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/003159.htm Vaginal itching and discharge - child To use the sharing features on this ... problem in girls before the age of puberty. Vaginal discharge may also be present. The color, smell, and ...

  3. Spleen removal - open - adults - discharge

    Science.gov (United States)

    ... discharge; Spleen removal - adult - discharge References Poulose BK, Holzman MD. The spleen. In: Townsend CM, Beauchamp RD, ... provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial ...

  4. Conceptual design of the W7-X port liners

    Energy Technology Data Exchange (ETDEWEB)

    Stadler, Reinhold J., E-mail: reinhold.stadler@ipp.mpg.de [Max Planck Institute for Plasma Physics, 85748 Garching (Germany); Peacock, A.; Boscary, J.; Mendelevitch, B [Max Planck Institute for Plasma Physics, 85748 Garching (Germany); Scholz, P. [Max Planck Institute for Plasma Physics, 17491 Greifswald (Germany); Schubert, W. [Max Planck Institute for Plasma Physics, 85748 Garching (Germany)

    2016-11-15

    The experimental stellarator Wendelstein 7-X has a large variety of ports for plasma diagnostics. For the steady-state operation with 10 MW input power and a plasma pulse length of up to 30 min, 101 diagnostics ports need to be shielded with actively cooled port liners made of stainless steel. A total of 41 variants of port liners taking into account the various port geometries and the interfaces with different types of diagnostics have to be installed. Before starting the production, different concepts have been studied. Five full-scale demonstrators and three different technologies representative of the port liner variety have been designed and are being produced. Results of this fabrication will serve as a basis for the procurement of the 101 port liners.

  5. Neutronics analysis for integration of ITER diagnostics port EP10

    Energy Technology Data Exchange (ETDEWEB)

    Colling, Bethany, E-mail: bethany.colling@ccfe.ac.uk [Culham Centre for Fusion Energy, Culham Science Centre, Abingdon, Oxon OX14 3DB (United Kingdom); Department of Engineering, Lancaster University, Lancashire LA1 4YR (United Kingdom); Eade, Tim [Culham Centre for Fusion Energy, Culham Science Centre, Abingdon, Oxon OX14 3DB (United Kingdom); Joyce, Malcolm J. [Department of Engineering, Lancaster University, Lancashire LA1 4YR (United Kingdom); Pampin, Raul; Seyvet, Fabien [Fusion for Energy, Josep Pla 2, Torres Diagonal Litoral B3, 08019 Barcelona (Spain); Turner, Andrew [Culham Centre for Fusion Energy, Culham Science Centre, Abingdon, Oxon OX14 3DB (United Kingdom); Udintsev, Victor [ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 St. Paul Lez Durance Cedex (France)

    2016-11-01

    Shutdown dose rate calculations have been performed on an integrated ITER C-lite neutronics model with equatorial port 10. A ‘fully shielded’ configuration, optimised for a given set of diagnostic designs (i.e. shielding in all available space within the port plug drawers), results in a shutdown dose rate in the port interspace, from the activation of materials comprising equatorial port 10, in excess of 2000 μSv/h. Achieving dose rates of 100 μSv/h or less, as required in areas where hands-on maintenance can be performed, in the port interspace region will be challenging. A combination of methods will need to be implemented, such as reducing mass and/or the use of reduced activation steel in the port interspace, optimisation of the diagnostic designs and shielding of the port interspace floor. Further analysis is required to test these options and the ongoing design optimisation of the EP10 diagnostic systems.

  6. Port performance evaluation tool based on microsimulation model

    Directory of Open Access Journals (Sweden)

    Tsavalista Burhani Jzolanda

    2017-01-01

    Full Text Available As port performance is becoming correlative to national competitiveness, the issue of port performance evaluation has significantly raised. Port performances can simply be indicated by port service levels to the ship (e.g., throughput, waiting for berthing etc., as well as the utilization level of equipment and facilities within a certain period. The performances evaluation then can be used as a tool to develop related policies for improving the port’s performance to be more effective and efficient. However, the evaluation is frequently conducted based on deterministic approach, which hardly captures the nature variations of port parameters. Therefore, this paper presents a stochastic microsimulation model for investigating the impacts of port parameter variations to the port performances. The variations are derived from actual data in order to provide more realistic results. The model is further developed using MATLAB and Simulink based on the queuing theory.

  7. Feasibility of Reduced Port Laparoscopic Colectomy for Colon Cancer.

    Science.gov (United States)

    Tsutsumi, Soichi; Morita, Hiroki; Fujii, Takaaki; Suto, Toshinaga; Yajima, Reina; Takada, Takahiro; Asao, Takayuki; Kuwano, Hiroyuki

    2015-06-01

    Reduced port laparoscopic surgery has recently emerged as a method to improve the cosmetic results of conventional laparoscopic surgery. We reported our technique of reduced port laparoscopic colectomy using 3-port and short-time outcomes. Between 2005 and 2012, we performed 161 reduced port laparoscopic colectomies using the 3-port technique. Data analyzed in-cluded age, gender, body mass index (BMI), duration of surgery, number of harvested lymph nodes, and duration of hospital stay. All of the cases were successfully performed using the 3-port procedure. The median durations of surgery and postoperative hospital stay were 140 mm (range 75-463 mm) and 9 days (range 5-38 days), respectively. No mortality was associated with this technique. Reduced port laparoscopic colectomy is feasible and may have advantages over conventional laparoscopic colectomy.

  8. EPA's Sustainable Port Communities: Anticipating Changes in ...

    Science.gov (United States)

    Port Communities Face Many Challenges: • Climate change – Sea Level Rise, Extreme Events: “Assets” become Vulnerabilities; Nuisance flooding; Changes in waste water and stormwater capacity; Changes in near-shore ecology and water quality • Port Expansion: Increasing multi-modal cargo transport, bigger ships; Energy use, transport; Invasive species; Homeland security; Increased development pressure (land use); Population growth • EJ Communities: Hazardous waste, cargo; Changes in emissions (amount, type, distribution) Changes in demographics, real estate values Disproportionately impacted by climate change • Competing Economic Interests Tourism and historical resources Protection of ecosystem services To make other federal agencies involved in resilience research aware of our study and to solicit collaboration.

  9. Severe Weather Guide - Mediterranean Ports. 13. Monaco

    Science.gov (United States)

    1988-03-01

    PALERMO, ITALY MESSINA, ITALY TAORMINA, ITALY PORTO TORRES, ITALY BENIDORM, SPAIN ROTA, SPAIN TANGIER, MOROCCO PORT SAID, EGYPT ALEXANDRIA...spread east to Monaco, but will be greatly reduced in intensity. (2) The Mistral will start at Marseille when one (or morel of three pressure...reduced in intensity, 12) The Mistral will start at Marseille when one lor morel of three pressure differences is achieved Iwestern most point has

  10. Portable UDP port forwarding in user space

    OpenAIRE

    Vancea Florin; Vancea Codruţa

    2009-01-01

    Port forwarding is frequently used to selectively expose services available on remote machines to clients running on the local machine or on machines connected to the local network. Services running over TCP are easy to forward using SSH, at least as long as the details of the transported protocol are transparent. Tools are available for other classes of tunneling, including UDP tunneling. However, thesetools are not very portable and may be limited to root/admin usage or may simply not be av...

  11. Globalization and wine business: Port wine

    OpenAIRE

    Rebelo, Joao; Correia, Leonida; Caldas, Jose Vaz

    2007-01-01

    In the past two decades the world has seen acceleration in the process of globalisation, affecting virtually all industries and consumers. The wine sector is no exception, witnessing increased exports and imports, decreasing consumption per capita in the producing countries, and a wave of direct foreign investment and mergers and acquisitions in the industry. Among European wine producers the Port wine can be seen as a representative case of globalisation and as a benchmark, because almost 90...

  12. Laser Treatment of Port Wine Stains

    Science.gov (United States)

    Majaron, Boris; Nelson, J. Stuart

    Port wine stain (PWS), also called nevus flammeus, is a congenital, cutaneous vascular malformation involving post-capillary venules which produce a light pink to red to dark-red-violet discoloration of human skin [1]. PWS occurs in an estimated 3 children per 1000 live births, affecting males and females and all racial groups equally [2]. There appears to be no hereditary predilection for PWS within families. There are no known risk factors or ways to prevent PWS.

  13. Ethnopharmacology of Medicinal Plants in Genaveh Port

    Directory of Open Access Journals (Sweden)

    Leila Moradi

    2014-11-01

    Full Text Available Background: Ethnopharmacology has been seen as a multidisciplinatary approach for novel drug discovery by providing valuable data about medicinal plants in different cultures. The aim of this ethnopharmacological study was to identify medicinal plants of the Genaveh port in the North of Persian Gulf. Material and Methods: The medical uses of medicinal plants were gathered from 30 local informants by face to face interview. The relative frequency of citation (FRC and cultural importance (CI indices were calculated. Results: A total of 93 medicinal plants belonging to 55 families were identified. Plantago psyllium, Teucrium polium, Peganum harmala, Descuraninia sophia, Cichorium intybus, Achillea erophora DC, Matricarria charmomilla and Citrolus colocynthis had the highest cultural importance indices. Plantago psyllium, Descuraninia sophia and Zataria multiflora had the highest FRC indices. The highest medical uses were for gastrointestinal diseases, gynocological diseases, respiratory disorders, infectious diseases, nature of cool and metabolic disorders, respectively. In addition to the use of these plants to treat diseases as in Iran’s traditional medicine, people in the Genaveh port particularly use Plantago psyllium for drainage of infective boils and abscesses, cough, skin diseases, Teucrium polium for diabetes mellitus, wound washing and sterilizing, Peganum harmala for uterus infections and abdominal cramps, Descuraninia sophia for heart diseases and heatstroke, Cichorium intybus for heatstroke and liver diseases, Achillea eriophora DC for reflex, diabetes mellitus and wound healing, Matricarria charmomilla for seizure and dysmenorrhea, Citrolus colocynthis for hemorrhoid, diabetes mellitus and rheumatism and Zataria multiflora for sedation, abdominal pain and respiratory diseases. Conclusion: There is a vast variety of medicinal plants in Genaveh port. Although most of therapeutic applications of these plants in the Genaveh port are the

  14. Environmental impact of the Midia Port - Black Sea (Romania, on the coastal sediment quality

    Directory of Open Access Journals (Sweden)

    Catianis Irina

    2016-03-01

    Full Text Available The aim of the study was to evaluate the impact of potential pollution sources, mainly from the upstream anthropogenic sources and port-related activities. The in-vestigated area covered a wide range of anthropogenic im-pacts (e.g., industrial wastes, storm water runoff, acciden-tal oil spills, intentional discharges and shipping activities. The quality of water and Sediments was assessed us-ing Standard methods, as physical-chemical parameters, chemistry and biology (microbiology, ecotoxicology aim-ing to figure the level of pollution and the effect of port-related activities. Seawater quality results agreed generally with environmental Standards. Though, in some samples the concentrations of sulphates (mg/1 and heavy metals (μg/1, as B, As and Se exceeded the recommended lim-its, without posing a serious environmental concern. Most of the surface sediment samples contain critical levels of hydrocarbons (C>12, (mg/kg, polycyclic aromatic hydrocarbons (ng/g and polychlorobiphenyls (ng/g. For some heavy metals (mg/kg, exchangeable concentrations were found to be very close or above the regulations. The signifi-cance of this study is incontestable taking into account the lack of previous relevant historical data of this area. In this sense, it was possible to indicate, in general, good environmental conditions, despite the industrial and concentrated local port-related activities in the investigated area.

  15. Effects of the Functional Group on the Lithium Irons Across the Port of Carbon Nanotube

    Science.gov (United States)

    Hui, Xie; Geng, Luo; Cheng-Bing, Yang; Chong, Luo; Chao, Liu

    2016-07-01

    The mean axial velocity of lithium irons across the entrance of carbon nanotube VLi is an important factor for the charge-discharge performances of rechargeable Lithium battery. The molecular dynamics simulation method is adopted to evaluate the factors and their effects on VLi which include the diameter of carbon nanotube, functional group type on the port and the number of a given type of functional group. The statistical analysis of the calculation results shows that: In the selected carbon nanotubes of four different diameters, VLi will gradually rise with the increase of CNT diameter due to lithium irons migration resistance decreasing; as the port of CNT is successively modified to hydrogen (-H), hydroxyl (-OH), amino (-NH2) and carboxyl (-COOH), the corresponding migration resistance of lithium ions is enhanced resulting in the dropping of VLi; in comparison to the effect strength of four types of functional groups on VLi, -COOH shows strongest, -NH2 and -OH perform relatively weaker, and the effect difference between -NH2 and -OH is very small, -H displays weakest; When the number of a given non-hydrogen functional group on the port sequentially increases, it also shows a trend that lithium ion migration resistance gradually increases which makes VLi decreases in turn. The more influential the functional group, the greater the impact of functional group number changes on VLi. The results of this paper have some significance on the precise production of lithium-ion battery electrode materials, enhancing the overall battery cycle efficiency and charging speed.

  16. Environmental impact of the Midia Port - Black Sea (Romania), on the coastal sediment quality

    Science.gov (United States)

    Catianis, Irina; Ungureanu, Constantin; Magagnini, Luca; Ulazzi, Elisa; Campisi, Tiziana; Stanica, Adrian

    2016-03-01

    The aim of the study was to evaluate the impact of potential pollution sources, mainly from the upstream anthropogenic sources and port-related activities. The in-vestigated area covered a wide range of anthropogenic im-pacts (e.g., industrial wastes, storm water runoff, acciden-tal oil spills, intentional discharges and shipping activities). The quality of water and Sediments was assessed us-ing Standard methods, as physical-chemical parameters, chemistry and biology (microbiology, ecotoxicology) aim-ing to figure the level of pollution and the effect of port-related activities. Seawater quality results agreed generally with environmental Standards. Though, in some samples the concentrations of sulphates (mg/1) and heavy metals (μg/1), as B, As and Se exceeded the recommended lim-its, without posing a serious environmental concern. Most of the surface sediment samples contain critical levels of hydrocarbons (C>12), (mg/kg), polycyclic aromatic hydrocarbons (ng/g) and polychlorobiphenyls (ng/g). For some heavy metals (mg/kg), exchangeable concentrations were found to be very close or above the regulations. The signifi-cance of this study is incontestable taking into account the lack of previous relevant historical data of this area. In this sense, it was possible to indicate, in general, good environmental conditions, despite the industrial and concentrated local port-related activities in the investigated area.

  17. Plasma Discharge Process in a Pulsed Diaphragm Discharge System

    Science.gov (United States)

    Duan, Jianjin; Hu, Jue; Zhang, Chao; Wen, Yuanbin; Meng, Yuedong; Zhang, Chengxu

    2014-12-01

    As one of the most important steps in wastewater treatment, limited study on plasma discharge process is a key challenge in the development of plasma applications. In this study, we focus on the plasma discharge process of a pulsed diaphragm discharge system. According to the analysis, the pulsed diaphragm discharge proceeds in seven stages: (1) Joule heating and heat exchange stage; (2) nucleated site formation; (3) plasma generation (initiation of the breakdown stage); (4) avalanche growth and plasma expansion; (5) plasma contraction; (6) termination of the plasma discharge; and (7) heat exchange stage. From this analysis, a critical voltage criterion for breakdown is obtained. We anticipate this finding will provide guidance for a better application of plasma discharges, especially diaphragm plasma discharges.

  18. Managing Temporal Knowledge in Port Management Systems

    Directory of Open Access Journals (Sweden)

    Anita Gudelj

    2006-05-01

    Full Text Available Large ports need to deal with a number of disparate activities:the movement of ships, containers and other cargo, theloading and unloading of ships and containers, customs activities.As well as human resources, anchorages, channels, lighters,tugs, berths, warehouse and other storage spaces have to beallocated and released. The efficient management of a port involvesmanaging these activities and resources, managing theflows of money involved between the agents providing and usingthese resources, and providing management information.Many information systems will be involved.Many applications have to deal with a large amount of datawhich not only represent the perceived state of the real world atpresent, but also past and/or future states. These applicationsare not served adequately by today's computer managementand database systems. In particular, deletions and updates insuch systems have destructive semantics. This means that previousdatabase contents (representing previous perceived statesof the real world cannot be accessed anymore.A review of how define temporal data models, based ongeneralizing a non-temporal data model in to a temporal one toimprove port management is presented. This paper describes apractical experiment which supports managing temporal dataalong with the corresponding prototype implementations.

  19. Irrigation port hydration in phacoemulsification surgery.

    Science.gov (United States)

    Suzuki, Hisaharu; Masuda, Yoichiro; Hamajima, Yuki; Takahashi, Hiroshi

    2018-01-01

    In most cases, hydration is performed by water injection into the stromal tissue with a needle. The technique is simple, however it is sometimes troublesome. We describe a simple technique for hydrating the corneal stroma in cataract surgery using an irrigation port. The technique began by pushing the irrigation port against the corneal stroma for a few seconds during phacoemulsification, which generated edema in the corneal incision that subsequently prevented leakage. This procedure is called the hydration using irrigation port (HYUIP) technique. A total of 60 eyes were randomized and placed in two groups, 30 eyes underwent surgeries using the HYUIP technique (HYUIP group) and 30 eyes underwent surgeries without the HYUIP technique (control). The three points evaluated during each surgery included 1) the occurrence of anterior chamber collapse during the pulling out of the I/A tip after inserting the intraocular lens, 2) the need for conventional hydration, and 3) watertight completion at the end stage of surgery. The anterior chamber collapse and the need for conventional hydration were significantly smaller in the HYUIP group compared to the control group. Regarding the self-sealing completion, no significant difference was observed between the two groups. The HYUIP technique is an effective method for creating self-sealing wound. In addition, this technique helps to prevent anterior chamber collapse.

  20. NEID Port Adapter: Design and Verification Plan

    Science.gov (United States)

    Logsdon, Sarah E.; McElwain, Michael; McElwain, Michael W.; Gong, Qian; Bender, Chad; Halverson, Samuel; Hearty, Fred; Hunting, Emily; Jaehnig, Kurt; Liang, Ming; Mahadevan, Suvrath; Monson, A. J.; Percival, Jeffrey; Rajagopal, Jayadev; Ramsey, Lawrence; Roy, Arpita; Santoro, Fernando; Schwab, Christian; Smith, Michael; Wolf, Marsha; Wright, Jason

    2018-01-01

    The NEID spectrograph is an optical (380-930 nm), fiber-fed, precision Doppler spectrograph currently in development for the 3.5 m WIYN Telescope at Kitt Peak National Observatory. Designed to achieve a radial velocity precision of system is mounted at this bent-Cassegrain port and is responsible for delivering the incident light from the telescope to the NEID fibers. In order to provide stable, high-quality images to the science instrument, the Port Adapter houses several subcomponents designed to acquire the target stars, correct for atmospheric dispersion, stabilize the light onto the science fibers, and calibrate the spectrograph by injecting known wavelength sources such as a laser frequency comb. Here we describe the overall design of the Port Adapter and outline the development of calibration tools and an on-sky test plan to verify the performance of the atmospheric dispersion corrector (ADC). We also discuss the development of an error budget and test requirements to ensure high-precision centroiding onto the NEID science fibers using a system of coherent fiber bundles.

  1. Adjuvant Bidirectional Chemotherapy Using an Intraperitoneal Port

    Directory of Open Access Journals (Sweden)

    Paul H. Sugarbaker

    2012-01-01

    Full Text Available Cytoreductive surgery (CRS and hyperthermic intraperitoneal chemotherapy (HIPEC have been established as treatment options for patients with peritoneal metastases or peritoneal mesothelioma. However, this novel treatment strategy remains associated with a large percentage of local-regional treatment failures. These treatment failures are attributed to the inadequacy of HIPEC to maintain a surgical complete response. Management strategies to supplement CRS and HIPEC are indicated. A simplified approach to the intraoperative placement of an intraperitoneal port for adjuvant bidirectional chemotherapy (ABC was devised. Four different chemotherapy treatment plans were utilized depending upon the primary site of the malignancy. Thirty-one consecutive patients with an intraoperative placement of the intraperitoneal port were available for study. The incidence of adverse events that caused an early discontinuation of the bidirectional chemotherapy occurred in 75% of the 8 patients who had an incomplete cytoreduction and in 0% of patients who had a complete cytoreduction. All of the patients who had complete cytoreduction completed at least 5 of the scheduled 6 bidirectional chemotherapy treatments. Adjuvant bidirectional chemotherapy is possible following a major cytoreductive surgical procedure using a simplified method of intraoperative intraperitoneal port placement.

  2. Artificial Neural Network forecasting of storm surge water levels at major estuarine ports to supplement national tide-surge models and improve port resilience planning

    Science.gov (United States)

    French, Jon; Mawdsley, Robert; Fujiyama, Taku; Achuthan, Kamal

    2017-04-01

    configured to take advantage of far-field information on developing tidal surges provided by tide gauges in NW Scotland (the 'external surge'), supported by observations of wind and atmospheric pressure and the predicted astronomical tide at Immingham. Missing data can cause problems with ANN models and a novel aspect of our implementation is the use of multiple redundant inputs (nearby tide gauges that experience a high degree of surge coherence) to synthesise a single external surge input. A similar approach is taken with meteorological forcings, creating an ANN that is resilient against data drop-outs within its input vector. The ANN generates 6 to 24 hour surge forecasts at Immingham with accuracy better than the present UK Storm Tide Warning Service. These can be used to cross-check national forecasts, generate more accurate estimates of likely flood depths, timings and durations and trigger planned responses to severe forecasts. Crucially, this capability can be 'owned' by the port operator, which encourages the development of a shared understanding of storm surge hazards and the challenges of port resilience planning between scientist and stakeholder.

  3. Compact Intracloud Discharges

    Energy Technology Data Exchange (ETDEWEB)

    Smith, David A. [Univ. of Colorado, Boulder, CO (United States)

    1998-11-01

    In November of 1993, mysterious signals recorded by a satellite-borne broadband VHF radio science experiment called Blackboard led to a completely unexpected discovery. Prior to launch of the ALEXIS satellite, it was thought that its secondary payload, Blackboard, would most often detect the radio emissions from lightning when its receiver was not overwhelmed by noise from narrowband communication carriers. Instead, the vast majority of events that triggered the instrument were isolated pairs of pulses that were one hundred times more energetic than normal thunderstorm electrical emissions. The events, which came to be known as TIPPs (for transionospheric pulse pairs), presented a true mystery to the geophysics community. At the time, it was not even known whether the events had natural or anthropogenic origins. After two and one half years of research into the unique signals, two ground-based receiver arrays in New Mexico first began to detect and record thunderstorm radio emissions that were consistent with the Blackboard observations. On two occasions, the ground-based systems and Blackboard even recorded emissions that were produced by the same exact events. From the ground based observations, it has been determined that TIPP events areproduced by brief, singular, isolated, intracloud electrical discharges that occur in intense regions of thunderstorms. These discharges have been dubbed CIDS, an acronym for compact intracloud discharges. During the summer of 1996, ground-based receiver arrays were used to record the electric field change signals and broadband HF emissions from hundreds of CIDS. Event timing that was accurate to within a few microseconds made possible the determination of source locations using methods of differential time of arrival. Ionospheric reflections of signals were recorded in addition to groundwave/line-of-sight signals and were used to determine accurate altitudes for the discharges. Twenty-four CIDS were recorded from three

  4. Continuous pile discharging machine

    International Nuclear Information System (INIS)

    Smith, P.P.

    1976-01-01

    A device for discharging cartridges from tubes under fluid pressure includes a cylindrical housing adapted to be seated in a leak-tight manner on the end of one of the tubes, a chute depending from the cylindrical housing near the end seated on the end of the tube, a rotatable piston having a wrench on the forward end thereof disposed in the cylindrical housing and adapted to manipulate a plug in the end of the tube, and a telescopic hydraulic ram adapted to move the piston toward the plug. In addition the wrench contains a magnet which prevents inadvertent uncoupling of the wrench and the plug. 7 claims, 10 drawing figures

  5. Continuous pile discharging machine

    Science.gov (United States)

    Smith, Phillips P.

    1976-05-11

    A device for discharging cartridges from tubes under fluid pressure includes a cylindrical housing adapted to be seated in a leak-tight manner on the end of one of the tubes, a chute depending from the cylindrical housing near the end seated on the end of the tube, a rotatable piston having a wrench on the forward end thereof disposed in the cylindrical housing and adapted to manipulate a plug in the end of the tube, and a telescopic hydraulic ram adapted to move the piston toward the plug. In addition the wrench contains a magnet which prevents inadvertent uncoupling of the wrench and the plug.

  6. A Compact, Versatile Six-Port Radar Module for Industrial and Medical Applications

    Directory of Open Access Journals (Sweden)

    Sarah Linz

    2013-01-01

    Full Text Available The Six-port receiver has been intensively investigated in the last decade to be implemented as an alternative radar architecture. Plenty of current scientific publications demonstrate the effectiveness and versatility of the Six-port radar for special industrial, automotive, and medical applications, ranging from accurate contactless vibration analysis, through automotive radar calibration, to remote breath and heartbeat monitoring. Its highlights, such as excellent phase discrimination, trivial signal processing, low circuit complexity, and cost, have lately drawn the attention of companies working with radar technology. A joint project involving the University of Erlangen-Nuremberg and InnoSenT GmbH (Innovative Sensor Technology led to the development of a highly accurate, compact, and versatile Six-port radar module aiming at a reliable high-integration of all subcomponents such as antenna, Six-port front-end, baseband circuitry, and digital signal processing in one single package. Innovative aspects in the RF front-end design as well as in the integration strategy are hereby presented, together with a system overview and measurement results.

  7. Radiological Interventions for Correction of Central Venous Port Catheter Migrations

    International Nuclear Information System (INIS)

    Gebauer, Bernhard; Teichgraeber, Ulf Karl; Podrabsky, Petr; Werk, Michael; Haenninen, Enrique Lopez; Felix, Roland

    2007-01-01

    The purpose of the study is to evaluate radiological-interventional central venous port catheter corrections in migrated/malpositioned catheter tips. Thirty patients with migrated/malpositioned port catheter tips were included in this retrospective analysis. To visualize the catheter patency, a contrast-enhanced port catheter series was performed, followed by transfemoral port catheter correction with various 5F angiographic catheters (pigtail, Sos Omni), goose-neck snare, or combinations thereof. One patient showed spontaneous reposition of the catheter tip. In 27 of 29 patients (93%), radiological-interventional port catheter correction was successful. In two patients, port catheter malposition correction was not possible because of the inability to catch either the catheter tip or the catheter in its course, possibly due to fibrin sheath formation with attachment of the catheter to the vessel wall. No disconnection or port catheter dysfunction was observed after correction. In migrated catheter tips, radiological-interventional port catheter correction is a minimally invasive alternative to port extraction and reimplantation. In patients with a fibrin sheath and/or thrombosis, port catheter correction is often more challenging

  8. Assessing Port Governance, Devolution and Terminal Performance in Nigeria

    Directory of Open Access Journals (Sweden)

    D. E. Onwuegbuchunam

    2018-02-01

    Full Text Available Concerns about performance and efficiency in port terminals led many national governments to embark on port reforms. The Federal government of Nigeria, for example, adopted the Landlord port model which brought about concessioning of port terminals to private operators. Despite high investments in terminal facilities by the private terminal operators, there are still complaints about level of service offered to port users. This paper applied key performance indicator metrics and parameters of queuing model in assessing performance of Nigeria’s concessioned port terminals. Data for the study were obtained from terminal level records of cargo and ship handling activities for years 2000 to 2015. Major findings indicate that cargo and vessel throughputs improved after the reforms in the six ports examined. However, much variability was observed in trends in ships’ turnround times across all ports after the concession policy implementation. Additional results from the queuing model analysis suggest that the high ships turnround times observed in some ports are associated to delays in ship operation at the berths. The paper recommends that policy interventions be focused on ship operations at the berths as a step in improving service level in the port terminals.

  9. Radiologically-placed venous ports in children under venous anesthesia

    Energy Technology Data Exchange (ETDEWEB)

    Jang, Joo Yeon; Jeon, Ung Bae; Choo, Ki Seok; Hwang, Jae Yeon; Kim, Yong Woo; Lee, Yun Jin; Nam, Sang Ool; Lim, Young Tak [Pusan National University School of Medicine, Yangsan (Korea, Republic of)

    2015-02-15

    To evaluate the efficacy and safety of radiologic venous port placement in children under venous anesthesia. Between April 2009 and July 2011, 44 ports were implanted in 41 children (24 boys, 17 girls). The age of patients ranged from 9 months to 19 years (mean, 6.5 years) and their body weights ranged from 6.8 kg to 56.3 kg (mean, 23.2 kg). Right internal jugular vein access was used in 42 ports, right subclavian vein in 1, and left subclavian in 1. Durability and complications of port implantation were reviewed. The technical success rate was 100%. The catheter life was 10-661 days (mean 246 days). Two patients died during the follow-up period, 21 and 6 ports were removed at the end of treatment or as a result of complications, respectively. One port was removed and replaced by a Hickmann catheter. Three ports were explanted due to port-related sepsis, one due to a catheter kink, and two for unexplained fever or insertion site pain. The overall port-related infection was 3 cases (6.8%, 0.28/1000 catheter days). Venous port placement by interventional radiologists in children under intravenous sedation is relatively safe, with a high rate of technical success and low rate of complications.

  10. Ecological risk assessments for the baseline condition for the Port Hope and Port Granby Projects

    International Nuclear Information System (INIS)

    Hart, D.R.; Kleb, H.

    2006-01-01

    Baseline ecological risk assessments were completed in and around the areas where cleanup of low-level radioactive waste (LLRW) and marginally contaminated soil (MCS) is planned under the Port Hope Area Initiative (PHAI). Both aquatic and terrestrial environments were assessed, in the vicinity of the proposed waste management facilities near Welcome and Port Granby, in locations potentially influenced by LLRW and MCS that will be cleaned up in future, and in reference locations that are not potentially influenced. The calculated doses and risk quotients suggest potential radiation effects for pre-cleanup benthic invertebrates in Port Hope Harbour, for any ducks feeding exclusively in this area, and for soil invertebrates in some other waste sites. In addition, risk quotients suggest potential baseline effects from some elements, particularly uranium and arsenic, in localized areas that are influenced by LLRW and MCS. (author)

  11. Effective Discharge and Annual Sediment Yield on Brazos River

    Science.gov (United States)

    Rouhnia, M.; Salehi, M.; Keyvani, A.; Ma, F.; Strom, K. B.; Raphelt, N.

    2012-12-01

    Geometry of an alluvial river alters dynamically over the time due to the sediment mobilization on the banks and bottom of the river channel in various flow rates. Many researchers tried to define a single representative discharge for these morphological processes such as "bank-full discharge", "effective discharge" and "channel forming discharge". Effective discharge is the flow rate in which, the most sediment load is being carried by water, in a long term period. This project is aimed to develop effective discharge estimates for six gaging stations along the Brazos River from Waco, TX to Rosharon, TX. The project was performed with cooperation of the In-stream Flow Team of the Texas Water Development Board (TWDB). Project objectives are listed as: 1) developing "Flow Duration Curves" for six stations based on mean-daily discharge by downloading the required, additional data from U.S Geological Survey website, 2) developing "Rating Curves" for six gaging stations after sampling and field measurements in three different flow conditions, 3) developing a smooth shaped "Sediment Yield Histogram" with a well distinguished peak as effective discharge. The effective discharge was calculated using two methods of manually and automatic bin selection. The automatic method is based on kernel density approximation. Cross-sectional geometry measurements, particle size distributions and water field samples were processed in the laboratory to obtain the suspended sediment concentration associated with flow rate. Rating curves showed acceptable trends, as the greater flow rate we experienced, the more sediment were carried by water.

  12. Umbilical KeyPort bilateral laparoscopic orchiectomy in patient with complete androgen insensitivity syndrome

    Directory of Open Access Journals (Sweden)

    Felipe P. Andrade

    2012-10-01

    Full Text Available MAIN FINDINGS: A 22-year-old woman with complete androgen insensitivity syndrome (CAIS presenting with primary amenorrhea and normal female external genitalia was referred for laparoscopic gonadectomy. She had been diagnosed several years earlier but was reluctant to undergo surgery. CASE HYPOTHESIS: Diagnosis of this X-linked recessive inherited syndrome characterizes by disturbance of virilization in males with an AR mutation, XY karyotipe, female genitalia and severely undescended testis with risk of malignization. The optimal time to orchidectomy is not settled; neither the real risk of malignancy in these patients. Early surgery impacts development of a complete female phenotype, with enlargement of the breasts. Based on modern diagnostic imaging using DCE-MRI and surgical technology with single port laparoscopic access we hypothesize that the optimum time for gonadectomy is not at the time of diagnosis, but once feminization has completed. PROMISING FUTURE IMPLICATIONS: An umbilical laparoendoscopic single-site access for bilateral gonadectomy appears to be the first choice approach as leaves no visible incision and diminishes the psychological impact of surgery in a patient with CAIS absolutely reassured as female. KeyPort, a single port access with duo-rotate instruments developed by Richard Wolf facilitates this surgery and allows excellent cosmetic results.

  13. A surgical glove port technique for laparoscopic-assisted ovariohysterectomy for pyometra in the bitch.

    Science.gov (United States)

    Becher-Deichsel, Anja; Aurich, Jörg E; Schrammel, Nadine; Dupré, Gilles

    2016-07-15

    The objective of the study was to describe the feasibility of a glove port technique for laparoscopic-assisted surgical treatment of canine pyometra. In this retrospective case series, a total of 10 female dogs (median age 7 years, range 5.5-10.5 years; median weight 37.0 kg, range 12.9-64.0 kg) with pyometra were included. A multiaccess port was created from a surgical glove attached to an Alexis wound retractor and placed in the ventral midline between the middle and caudal third of the distance between umbilicus and pubic rim. A vessel sealing device was used for transection of the ovarian pedicle. The port size was selected on the basis of maximum uterine diameter determined by ultrasound. Median incision length was 5.0 cm (range 3.1-7.7 cm) for a maximum uterine diameter of 4.0 cm (range 2.0-7.0 cm). Median surgical time was 57 minutes (range 48-65 minutes). No case had to be converted to open celiotomy. Complications included one case of minor, self-limiting splenic trauma by the endoscope. In eight dogs, the distended uterine horns endangered safe access to the ovarian pedicle, and the vessel sealing device was inserted through a second cannula placed periumbilically. Extension of the original incision was necessary to exteriorize organs in two dogs. All dogs recovered quickly and were discharged either on the day of surgery or 1 day thereafter. In conclusion, a surgical glove port technique in combination with an Alexis wound retractor is feasible for surgical laparoscopic treatment of canine pyometra up to a diameter of 7 cm. Copyright © 2016 Elsevier Inc. All rights reserved.

  14. 33 CFR 165.809 - Security Zones; Port of Port Lavaca-Point Comfort, Point Comfort, TX and Port of Corpus Christi...

    Science.gov (United States)

    2010-07-01

    ... Lavaca-Point Comfort, Point Comfort, TX and Port of Corpus Christi Inner Harbor, Corpus Christi, TX. 165... Lavaca-Point Comfort, Point Comfort, TX and Port of Corpus Christi Inner Harbor, Corpus Christi, TX. (a) Location. The following area is designated as a security zone: all waters of the Corpus Christi Inner...

  15. Low cost, robust and real time system for detecting and tracking moving objects to automate cargo handling in port terminals

    NARCIS (Netherlands)

    Vaquero, V.; Repiso, E.; Sanfeliu, A.; Vissers, J.; Kwakkernaat, M.

    2016-01-01

    The presented paper addresses the problem of detecting and tracking moving objects for autonomous cargo handling in port terminals using a perception system which input data is a single layer laser scanner. A computationally low cost and robust Detection and Tracking Moving Objects (DATMO) algorithm

  16. Spatial Determinants of Import Traffic Distribution At Port Harcourt (Nigeria

    Directory of Open Access Journals (Sweden)

    Soddy I. Inyang

    2013-07-01

    Full Text Available This paper highlights the result of a study carried out to examine the Geographic determinants of import traffic distribution at the Port Harcourt Port. A substantial aspect of the study involved building a regression model to estimate import distribution from the Port. The import function was specified in log-linear form. The adequacy of the model was then tested; this, involved statistical experiments to obtain the R-squared, as well as t and f values. Further test on the adequacy of the nwdel was conducted through diagnostic exercises designed to check for inulticollinedrity and heteroscedasticity, in the data used. Results obtained show that road distance and manufacturing industries are significant Geographic determinants of import Cargo distribution at the study Port. It is therefore important to lake the two variables into account in any policy or planning exercise at Port Harcourt Port.

  17. Analysis of Multipactor Discharge

    International Nuclear Information System (INIS)

    Lau, Y. Y.

    2005-01-01

    Several comprehensive studies of radio frequency (rf) breakdown and rf heating are reported. They are of general interest to magnetic confinement fusion, rf linac, and high power microwave source development. The major results include: (1) a ground-breaking theory of multipactor discharge on dielectric, including a successful proof-of-principle experiment that verified the newly developed scaling laws, (2) an in depth investigation of the failure mechanisms of diamond windows and ceramic windows, and of the roles of graphitization, thin films of coating and contaminants, and (3) a most comprehensive theory, to date, on the heating of particulates by an electromagnetic pulse, and on the roles of rf magnetic field heating and of rf electric field heating, including the construction of new scaling laws that govern them. The above form a valuable knowledge base for the general problem of heating phenomenology

  18. Heart bypass surgery - minimally invasive - discharge

    Science.gov (United States)

    ... invasive direct coronary artery bypass - discharge; MIDCAB - discharge; Robot assisted coronary artery bypass - discharge; RACAB - discharge; Keyhole ... M. is also a founding member of Hi-Ethics and subscribes to the principles of the Health ...

  19. Clinical nursing of pelvic neoplasm treated with infusion chemotherapy by using an anti-reflux arterial port-catheter system

    International Nuclear Information System (INIS)

    Xing Li; Yuan Chanjuan

    2011-01-01

    Objective: To discuss the clinical nursing care for patients with pelvic neoplasm who were treated with infusion chemotherapy by using an anti-reflux arterial port-catheter system. Methods: After the implantation of an anti-reflux arterial port-catheter system was successfully completed, intra-arterial infusion chemotherapy was carried out in 17 patients with pelvic neoplasm and the infusion chemotherapy was repeated for several times. The pre-procedural clinical nursing care was well done and the technique of proper placement was well grasped. The side effects of chemotherapy drugs and complications were dealt with in time. Medical orientation at discharge time included the protection methods for port-catheter system. Results: Seventeen patients received infusion chemotherapy successfully several times (ranged from 3 to 8 times) with a scheduled regular interval time. No severe complications occurred. No catheter leakage nor obvious irritation and compression symptoms of local skin developed during infusion period. Of the 17 patients, 6 had a complete response, 9 achieved a partial response, while the remaining 2 failed to respond. Conclusion: In accordance with characteristics of infusion chemotherapy by using an anti-reflux arterial port-catheter system, the reasonable and effective nursing care is important to guarantee the achievement of a successful performance and a satisfactory therapeutic result. (authors)

  20. Gastric Band Port Site Fixation: Which Method Is Best?

    Directory of Open Access Journals (Sweden)

    Corinne E. Owers

    2015-01-01

    Full Text Available Laparoscopic adjustable gastric banding is a popular and successful bariatric surgical technique. Although short-term complications are few in number, long-term complications are more common. One such complication is flippage of the gastric band port. This study compares three popular methods of port fixation and demonstrates that fixation with nonabsorbable mesh helps to prevent port flippage when compared to other techniques, reducing the need for repositioning operations.

  1. A Mixed Integer Programming for Port Anzali Development Plan

    OpenAIRE

    Mahdieh Allahviranloo

    2009-01-01

    This paper introduces a mixed integer programming model to find the optimum development plan for port Anzali. The model minimizes total system costs taking into account both port infrastructure costs and shipping costs. Due to the multipurpose function of the port, the model consists of 1020 decision variables and 2490 constraints. Results of the model determine the optimum number of berths that should be constructed in each period and for each type of cargo. In addition to, the results of se...

  2. 9 CFR 98.6 - Ports of entry.

    Science.gov (United States)

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Ports of entry. 98.6 Section 98.6... Disease; and Embryos of Horses and Asses § 98.6 Ports of entry. An embryo shall not be imported into the United States unless at a port of entry listed in § 93.303 for horses, § 93.403 for ruminants, or § 93...

  3. World port cities as cosmopolitan risk community

    DEFF Research Database (Denmark)

    Blok, Anders; Tschötschel, Robin

    2015-01-01

    are shaped and circulated, we argue, within transnational assemblages of local government networks, international organizations, multinational insurance companies and transnational non-governmental organizations. Adopting the methodology of mapping urban climate experiments, we then document one policy......Extending Ulrich Beck’s theory of world risk society, this article traces the emergence of a cosmopolitan risk community of world port cities in Europe and East Asia, constituted around shared imaginations of the global risks and opportunities of climate change. Such urban risk imaginations...

  4. Severe Weather Guide Mediterranean Ports. 43. Sfax

    Science.gov (United States)

    1991-08-01

    SADII TYRRHENIANE 40-E Figure’ 2-. West an etaeitraenSa SE BALEARIC Situated on the extreme north shore of the Gulf of Gabes, the Port of Sfax is...France New London, CT 06320 Monterey, CA 93943-5002 Institut fur Mereskunde Comuander Commander An Der Universitat Kiel NAVSJRFWEAC4, Code R42 Naval...Other aDsect at ills cOllec on of informalion. including suggeslions for reducing this burden. to wasiingion Memloualers Se*rdm Dructorae for intornfatn

  5. Compressor ported shroud for foil bearing cooling

    Science.gov (United States)

    Elpern, David G [Los Angeles, CA; McCabe, Niall [Torrance, CA; Gee, Mark [South Pasadena, CA

    2011-08-02

    A compressor ported shroud takes compressed air from the shroud of the compressor before it is completely compressed and delivers it to foil bearings. The compressed air has a lower pressure and temperature than compressed outlet air. The lower temperature of the air means that less air needs to be bled off from the compressor to cool the foil bearings. This increases the overall system efficiency due to the reduced mass flow requirements of the lower temperature air. By taking the air at a lower pressure, less work is lost compressing the bearing cooling air.

  6. Savudrija - its port and coastal landscape in roman times

    OpenAIRE

    Koncani Uhač, Ida; Auriemma, Rita

    2017-01-01

    The port basin of Roman Savudrija, once part of the ager of Tergeste colony, comprised a large number of port infrastructure facilities. Today, some of the port structures are submerged and some can be found in the soil profile on dry land. The remains of walls on the southern part of the coastline probably belonged to the superstructure of the first, lowest terrace of the port. Owing to the archaeological data obtained during the 2011-2014 excavations, we can date the construction and recrea...

  7. Development of the alternate entry port for the ATF

    International Nuclear Information System (INIS)

    Parsa, Z.

    1993-05-01

    We discussed a second entry port for the Accelerator Test Facility (ATF) injection system at Brookhaven National Laboratory, which consists of a photocathode rf gun and a straight - ahead beamline directly into the 50 MeV linac. The proposed second entry port should improve the beam quality and lower the emittance needed for FEL (Free Electron Laser), and laser - acceleration experiments. A discussion on the laser driven high brightness photoelectrons through the primary entry port (a low energy 180 degrees achromatic double bend transport line) now in operation, and a beam analysis for the proposed secondary port is also given

  8. Written Information Improves Patient Knowledge About Implanted Ports.

    Science.gov (United States)

    Piredda, Michela; Migliozzi, Amelia; Biagioli, Valentina; Carassiti, Massimiliano; De Marinis, Maria Grazia

    2016-04-01

    Implanted ports are frequently used for patients with cancer who require IV chemotherapy. In addition to verbal communication with healthcare providers, patients with cancer may benefit from written information. This pre/post study evaluated the effectiveness of an informational booklet by improving knowledge about ports and assessed the history, need, and preferences for information. Patients with cancer who had an implanted port for at least six months were provided with an informational booklet about ports. Knowledge about ports was tested before (T0) and after (T1) patients read the booklet. Information needs and preferred sources of information were also assessed at T0. Patients reported their opinions of the booklet at T1. The sample included 129 patients; 49% were male, with a mean age of 59 years. Most patients want to receive as much information as possible, preferably before the port is implanted. However, 43% of patients reported they had received little information about ports. After reading the booklet, patients' knowledge, which was measured with a validated seven-item instrument, improved from T0 to T1 (p information, can increase patients' knowledge about implanted ports and their confidence in caring for their ports.

  9. The Aggregate Planning For Trucking Operation in Cikarang Dry Port

    Directory of Open Access Journals (Sweden)

    Dwi Puspita Sari Utami

    2015-06-01

    Full Text Available Abstract. Cikarang Dry Port currently is the only dry port in Indonesia. This Dry Port has a role to connect or extend the Sea Port to the industrial areas located far from Sea Port. Thus, it creates a value added and also reduce costs. One of the operations done in Cikarang Dry Port is trucking operation. This research aims to examine the planning of 2014 trucking activity in Cikarang Dry Port to determine the right number of the truck that will be best occupied to manage all demands. The analysis begins with demand forecasting by using a moving average method of 12 months or one year period in 2013 which will be used as main information to develop the plans. There are three plans developed in this research. Based on the three plans, Plan A with minimum trucking plan with subcontracting is the most profitable which gives the highest profitability of Rp. 374,984,625. Recommendation for this research is using the current minimum number of 39 trucks rent with additional subcontracting when the demand is exceeding the capacity, thus, Cikarang Dry Port can occupy all demands and gain more profits. Keywords: Aggregate Planning; Scheduling; Trucking Operation; Moving Average; Cikarang Dry Port

  10. Soft tissue injuries of the face in Port Harcourt, Nigeria | Kejeh | Port ...

    African Journals Online (AJOL)

    Background: This study was carried out in Port Harcourt the centre of several violent activities in the Niger Delta Region of the South-South GeoPolitical Region in Nigeria. In addition, assaults, road traffic accidents and other causes of injuries are common in this environment. Aim: To determine the pattern of soft tissue ...

  11. Optimisation of ported yield of hemispherical ported microparticles for soft tissue augmentation

    CSIR Research Space (South Africa)

    Barnard, A

    2011-05-01

    Full Text Available degradation period and biocompatibility. Micro-porous particles are useful in soft-tissue bulking due to their relatively large surface area, low density and high degree of porosity. In this study, the authors have developed ported porous PCL particles...

  12. Galactography: the diagnostic procedure of choice for nipple discharge

    International Nuclear Information System (INIS)

    Tabar, L.; Dean, P.B.; Pentek, Z.

    1983-01-01

    Galactogrpahy was performed in 204 women with a nipple discharge and the secretion confirmed histopathologically. All 116 intraductal tumors (papilloma, papillomatosis, carcinoma), which were associated with a serous or bloody discharge, were detected preoperatively. A palpable mass had little diagnostic significance, and exfoliative cytology was positive in only 11% (2/18) of the patients with carcinoma. The authors recommend that all patients with a spontaneous bloody or serous discharge from a single lactiferous orifice undergo galactography in addition to physical, cytological, and mammographic examination. Intraductal injection of methylene blue dye will demonstrate the affected duct system to the surgeon and can often make surgery less radical or even unnecessary

  13. Drug compliance among hypertensive patients in Port Harcourt, Nigeria.

    Science.gov (United States)

    Akpa, M R; Agomuoh, D I; Odia, O J

    2005-01-01

    Hypertension contributes significantly to cardiovascular morbidity and mortality. Adequate blood pressure control would therefore reduce cardiovascular morbidity and mortality, however adequate blood pressure control requires good treatment compliance. One hundred consecutive patients aged 30-79 years attending the cardiac clinic of the medical out-patients clinic of the University of Port Harcourt Teaching Hospital were directly questioned about compliance with their antihypertensive drugs and results entered into the questionnaire designed for the study. Compliance was good in sixty percent (60%) of respondents, fair in twenty nine percent (29%) and poor in eleven percent (11%). Compliance was also found to be good in sixty-seven percent (67%) of patients with tertiary education, good in forty one percent (41%) of those with primary education. Compliance was good in seventy four percent (74%) of those taking one drug, good in only thirty three percent (33%) of those taking four drugs. Patients taking single daily dose drugs had good compliance in seventy percent (70%), twice daily dosing had good compliance in fifty five percent (55%) and among those taking thrice daily dosage, compliance was good in only seventeen percent (17%). The study shows that good compliance with anti-hypertensive therapy is best achieved with monotherapy given as single dosage. It also shows the role of education in the level of compliance.

  14. FNR demonstration experiments Part I: Beam port leakage currents and spectra

    International Nuclear Information System (INIS)

    Wehe, D.K.; King, J.S.

    1983-01-01

    The goal of the NR-LEU experimental program has been to measure the changes in numerous reactor characteristics when the conventional HEU core is replaced by a complete LEU fueled core or by a single LEU element in the normal HEU core. We have observed comparisons in a) thermal flux intensity, spatial distribution and cadmium ratios, both in the core and in the light and heavy water reflectors, b) fast flux intensity and spectral shape at a special element within the core, c) the thermal leakage flux intensity at the exit positions of several beam ports and its spectral shape at one beam port, d) shim and control rod worths, e) temperature coefficient of reactivity, and f) xenon poison worth. The NR is a 2 MW light water pool reactor, reflected on three faces by light water and on one face by D 2 O, composed of MTR plate fuel elements. Figure shows a plan view of the core grid, D 2 O reflector tank, and beam ports. The conventional HEU fuel element contains eighteen MTR Al plates 30 in x 24 in x 0.06 in. The center 0.02 in of each plate is 93% U-235 enriched UAl x . A normal equilibrium HEU core loading is outlined. Each new HEU element contains ∼ 140 grams of U-235. The LEU low enrichment fuel retains the same plate and element geometry but the fuel is contained in a central 0.03 in thick UA l x matrix with 19.5% U-235 enrichment. Each new LEU element contains ov 167.3 grams U-235. In-core neutron fluxes were routinely mapped by a rhodium SPND and by many wire and foil activations. The same data, but in more restricted positions, were obtained through the light water reflector (south) and D 2 O reflector tank (north). Beam port leakage currents were measured during all power cycles, by transmission fission chambers at the exits of ports GI, and J, by a B3 detector at A-port, and by a prompt detector at the F-port exit. Thermal neutron spectra for both HEU and LEU cores were measured at I port using a single crystal silicon diffractometer. These measurements

  15. Dual-Lumen Chest Port Infection Rates in Patients with Head and Neck Cancer

    International Nuclear Information System (INIS)

    Bos, Aaron; Ahmed, Osman; Jilani, Danial; Giger, Maryellen; Funaki, Brian S.; Zangan, Steven M.

    2015-01-01

    PurposeThe aim of this study was to investigate dual-lumen chest port infection rates in patients with head and neck cancer (HNC) compared to those with other malignancies (non-HNC).Materials and MethodsAn IRB-approved retrospective study was performed on 1,094 consecutive chest ports placed over a 2-year period. Patients with poor follow-up (n = 53), no oncologic history (n = 13), or single-lumen ports (n = 183) were excluded yielding a study population of 845 patients. The electronic medical records were queried for demographic information, data regarding ports and infections, and imaging review.ResultsHNC patients experienced more infections (42 vs. 30), an increased infection rate per 1,000 catheter days (0.68 vs. 0.21), and more early infections within 30 days compared to non-HNC patients (10 vs. 6) (p < 0.001, p < 0.001, p = 0.02, respectively). An existing tracheostomy at the time of port placement was associated with infection in the HNC group (p = 0.02) but was not an independent risk factor for infection in the study population overall (p = 0.06). There was a significant difference in age, male gender, and right-sided ports between the HNC and non-HNC groups (p < 0.01, p < 0.001, and p = 0.01), although these were not found to be independent risk factors for infection (p = 0.32, p = 0.76, p = 0.16).ConclusionHNC patients are at increased risk for infection of dual-lumen chest ports placed via a jugular approach compared to patients with other malignancies. Tracheostomy is associated with infection in HNC patients but is not an independent risk factor for infection in the oncologic population as a whole

  16. Dual-Lumen Chest Port Infection Rates in Patients with Head and Neck Cancer

    Energy Technology Data Exchange (ETDEWEB)

    Bos, Aaron, E-mail: abos1210@gmail.com; Ahmed, Osman [University of Chicago Medical Center (United States); Jilani, Danial [Wright State University Boonshoft School of Medicine (United States); Giger, Maryellen; Funaki, Brian S.; Zangan, Steven M. [University of Chicago Medical Center (United States)

    2015-06-15

    PurposeThe aim of this study was to investigate dual-lumen chest port infection rates in patients with head and neck cancer (HNC) compared to those with other malignancies (non-HNC).Materials and MethodsAn IRB-approved retrospective study was performed on 1,094 consecutive chest ports placed over a 2-year period. Patients with poor follow-up (n = 53), no oncologic history (n = 13), or single-lumen ports (n = 183) were excluded yielding a study population of 845 patients. The electronic medical records were queried for demographic information, data regarding ports and infections, and imaging review.ResultsHNC patients experienced more infections (42 vs. 30), an increased infection rate per 1,000 catheter days (0.68 vs. 0.21), and more early infections within 30 days compared to non-HNC patients (10 vs. 6) (p < 0.001, p < 0.001, p = 0.02, respectively). An existing tracheostomy at the time of port placement was associated with infection in the HNC group (p = 0.02) but was not an independent risk factor for infection in the study population overall (p = 0.06). There was a significant difference in age, male gender, and right-sided ports between the HNC and non-HNC groups (p < 0.01, p < 0.001, and p = 0.01), although these were not found to be independent risk factors for infection (p = 0.32, p = 0.76, p = 0.16).ConclusionHNC patients are at increased risk for infection of dual-lumen chest ports placed via a jugular approach compared to patients with other malignancies. Tracheostomy is associated with infection in HNC patients but is not an independent risk factor for infection in the oncologic population as a whole.

  17. Clinical Features of Human Immunodeficiency Virus-Infected Patients Presenting with Cholera in Port-au-Prince, Haiti.

    Science.gov (United States)

    Sévère, Karine; Anglade, Stravinsky B; Bertil, Claudin; Duncan, Aynsley; Joseph, Patrice; Deroncenay, Alexandra; Mabou, Marie M; Ocheretina, Oksana; Reif, Lindsey; Seo, Grace; Pape, Jean W; Fitzgerald, Daniel W

    2016-11-02

    Human immunodeficiency virus (HIV) infection has been postulated to alter the natural history of cholera, including increased susceptibility to infection, severity of illness, and chronic carriage of Vibrio cholerae Haiti has a generalized HIV epidemic with an adult HIV prevalence of 1.9% and recently suffered a cholera epidemic. We conducted a prospective study at the cholera treatment center (CTC) of GHESKIO in Haiti to characterize the coinfection. Adults admitted at the CTC for acute diarrhea were invited to participate in the study. Vital signs, frequency, and volume of stools and/or vomiting were monitored, and single-dose doxycycline was administered. After counseling, participants were screened for HIV by enzyme-linked immunosorbent assay and for cholera by culture. Of 729 adults admitted to the CTC, 99 (13.6%) had HIV infection, and 457 (63%) had culture-confirmed cholera. HIV prevalence was three times higher in patients without cholera (23%, 63/272) than in those with culture-confirmed cholera (7.9%, 36/457). HIV prevalence in patients with culture-confirmed cholera (7.9%) was four times higher than the adult prevalence in Port-au-Prince (1.9%). Of the 36 HIV-infected patients with cholera, 25 (69%) had moderate/severe dehydration versus 302/421 (72%) in the HIV negative. Of 30 HIV-infected patients with weekly stool cultures performed after discharge, 29 (97%) were negative at week 1. Of 50 HIV-negative patients with weekly stool cultures, 49 (98%) were negative at week 1. In countries with endemic HIV infection, clinicians should consider screening patients presenting with suspected cholera for HIV coinfection. © The American Society of Tropical Medicine and Hygiene.

  18. Clinical Features of Human Immunodeficiency Virus–Infected Patients Presenting with Cholera in Port-au-Prince, Haiti

    Science.gov (United States)

    Sévère, Karine; Anglade, Stravinsky B.; Bertil, Claudin; Duncan, Aynsley; Joseph, Patrice; Deroncenay, Alexandra; Mabou, Marie M.; Ocheretina, Oksana; Reif, Lindsey; Seo, Grace; Pape, Jean W.; Fitzgerald, Daniel W.

    2016-01-01

    Human immunodeficiency virus (HIV) infection has been postulated to alter the natural history of cholera, including increased susceptibility to infection, severity of illness, and chronic carriage of Vibrio cholerae. Haiti has a generalized HIV epidemic with an adult HIV prevalence of 1.9% and recently suffered a cholera epidemic. We conducted a prospective study at the cholera treatment center (CTC) of GHESKIO in Haiti to characterize the coinfection. Adults admitted at the CTC for acute diarrhea were invited to participate in the study. Vital signs, frequency, and volume of stools and/or vomiting were monitored, and single-dose doxycycline was administered. After counseling, participants were screened for HIV by enzyme-linked immunosorbent assay and for cholera by culture. Of 729 adults admitted to the CTC, 99 (13.6%) had HIV infection, and 457 (63%) had culture-confirmed cholera. HIV prevalence was three times higher in patients without cholera (23%, 63/272) than in those with culture-confirmed cholera (7.9%, 36/457). HIV prevalence in patients with culture-confirmed cholera (7.9%) was four times higher than the adult prevalence in Port-au-Prince (1.9%). Of the 36 HIV-infected patients with cholera, 25 (69%) had moderate/severe dehydration versus 302/421 (72%) in the HIV negative. Of 30 HIV-infected patients with weekly stool cultures performed after discharge, 29 (97%) were negative at week 1. Of 50 HIV-negative patients with weekly stool cultures, 49 (98%) were negative at week 1. In countries with endemic HIV infection, clinicians should consider screening patients presenting with suspected cholera for HIV coinfection. PMID:27549637

  19. Influence of increased velocity on the statistical discharge characteristics of He and air barrier discharges

    Science.gov (United States)

    Reichen, P.; Sonnenfeld, A.; von Rohr, Ph Rudolf

    2010-01-01

    A detailed study of a description method for microdischarges based on the statistical analysis of single discharge bursts is presented and applied for small electrode arrays. As such, the electrical properties derived from the collective behaviour of the current bursts for microdischarges in helium and synthetic air for different pressure levels and variable voltage gradients are elaborately discussed. Motivated by the possible prolongation of the displacement distance of active species and thus the improved development of an atmospheric afterglow in a low frequency discharge, the interaction between high-speed gas flows and microdischarges in small ducts has been approached presenting first results. Intentionally, gases with different discharge mechanisms known as streamer (synthetic air) and Townsend (helium) have been considered. Similar velocity dependences of the discharge behaviour could be observed in both gases. For helium, subsonic channel velocity is sufficient to distinctively alter the discharge characteristics whereas transonic flow is needed to alter those of synthetic air. Subsequently, a simple model is proposed to explain these findings for elevated velocities in a dielectric setup.

  20. Porting a visualization package from IRIX to NT : what will I get, what will I pay?

    NARCIS (Netherlands)

    R. van Liere (Robert); J.A. Harkes; J.H. Kniesmeijer

    1998-01-01

    textabstractWe discuss our experiences in porting a moderately large scientific visualization environment from IRIX to NT~4.0. Two porting strategies have been taken: a port via a POSIX emulation layer and a native NT port. POSIX compliant code can be ported to NT with relatively little effort if