bluuebunny/crossref_metadata_2025_split huggingface dataset:
An investigation on weld quality characteristics of pulsed current micro plasma arc welded austenitic stainless steels
Authors: Prasada Kondapalli Siva , Raob Chalamasetti Srinivasa , Raoc Damera Nageswara 
Published: December 2012

Micro Plasma Arc Welding (MPAW) is one of the important arc welding process commonly used in sheet metal industry for manufacturing metal bellows, metal diaphragms etc. The present work discusses about the weld quality characteristics of various austenitic stainless steels namely AISI 304L, AISI 316L, AISI 316Ti, AISI 321 which are commonly used for manufacturing of metal bellows. Square butt joint is used in the welding and no filler wire is used. Welding is carried out at fixed values of input parameters and same thickness of 0.25mm for all the steels. Peak current, background current, pulse rate and pulse width are considered as the main welding process parameters of MPAW process, where as weld bead geometry, microstructure, grain size, hardness and tensile properties are considered as weld quality characteristics. Results reveal that out of all the materials considered in the study AISI 304L attains better weld quality characteristics for same welding conditions.Keywords: Pulsed current micro plasma arc welding, microstructure, grain size, hardness, tensile properties.
Gene expression programming for power system static security assessment
Authors: Mekhamer S.F. , Abdelaziz A.Y. , Khattab H.M. , Badr M.A.L. 
Published: December 2012

In this paper, a novel gene expression programming (GEP) algorithm is presented for power system static security assessment. The GEP algorithms as evolutionary algorithms for pattern classification have recently received attention for classification problems because they can perform global searches and achieve high classification accuracy. The proposed methodology introduces the GEP based classifier for the first time in static security assessment problems. The proposed algorithm is examined using different IEEE standard test systems available in the literature. Different contingency case studies have been used to test the proposed methodology performance. The GEP based algorithm formulates the problem as a multi-class classification problem using the one-against-all binarization method. The algorithm classifies the static security of the power system into three classes, namely normal, alert and emergency. Performance of the algorithm is compared with other probabilistic and deterministic algorithms including different neural network based classifiers. Simulation results show the superiority of the proposed technique in static security assessment.Keywords: static security, gene expression programming, probabilistic neural network, radial basis function neural network, power system classifier.
Multi-objective unit commitment problem using Cuckoo search Lagrangian method
Authors: Chandrasekaran K. , Simon Sishaj P. 
Published: December 2012

Restructuring of power system changed the mechanism of reliability management in solving the unit commitment problem (UCP). In general, operating reserve capacity is predetermined either by dispatch rules or predefined by reliability index. This paper considers that the operating reserve capacity in a power system is bendable, which is based on the cost-reliability issues. In UCP, these two competing objectives such as fuel cost and reliability level of the system were optimized simultaneously, as a multi-objective unit commitment problem (MOUCP), using the proposed fuzzy integrated binary real coded cuckoo search Lagrangian (BCSL) algorithm. The ON/OFF status of the thermal power units is obtained by binary coded cuckoo search algorithm (CSA), where as the economic dispatch is obtained by Lagrangian multiplier method. The fuzzy set theory is used to pick up the best compromise solution. The proposed methodology is tested and validated for both the single and multi-objective UCP. The effectiveness of the proposed technique is demonstrated on IEEE RTS 24 bus system by comparing its performance with other methods reported in the literature.Keywords: binary coded cuckoo search algorithm, fuzzy set theory, reliability index, reserve scheduling, unit commitment problem.
Time Since Fire Affects Ectoparasite Prevalence on Lizards in the Florida Scrub Ecosystem
Authors: McCoy Earl D. , Styga Joseph M. , Rizkalla Carol E. , Mushinsky Henry R. 
Published: December 2012

AbstractPrevalence of parasites can be an indicator of individual and population health of hosts. Populations of parasites can be affected by habitat management practices, however, which in turn can affect prevalence on hosts. We assessed the influence of varying fire histories on the prevalence of ectoparasites, primarily chiggers (mite larvae of the genus Eutrombicula), on the three most common lizard species resident in the Florida scrub ecosystem. Few individuals of the Florida sand skink (Plestiodon reynoldsi) harbored ectoparasites. The Florida scrub lizard (Sceloporus woodi) and the six-lined racerunner (Aspidoscelis sexlineata) had the highest prevalence of ectoparasites in recently burned (within 3 years) plots. Change in habitat structure or increased mobility of hosts following a recent burn may increase the host-parasite encounter rate.
Trends in Wildfire Severity: 1984 to 2010 in the Sierra Nevada, Modoc Plateau, and Southern Cascades, California, USA
Authors: Miller Jay D. , Safford Hugh 
Published: December 2012

AbstractData from recent assessments indicate that the annual area of wildfires burning at high severity (where most trees are killed) has increased since 1984 across much of the southwestern United States. Increasing areas of high-severity fire can occur when greater area is burned at constant proportion of high-severity fire, or when the proportion of high-severity fire within fire perimeters increases, or some combination of both. For the Sierra Nevada Forest Plan Amendment (SNFPA) area, which includes forestlands in eastern California and western Nevada, Miller et al. (2009a) concluded that the proportion of area burning at high severity in mixed-conifer forests had risen over the 1984 to 2004 period. However, no statistical assessment was made of the temporal trend in high-severity fire area because the analyzed dataset was incomplete in the early years of the study period. In this update, we use satellite-derived estimates of fire severity from the three most widely distributed SNFPA forest types to examine the trend in percent high severity and high-severity fire area for all wildfires ≥80 ha that occurred during the 1984 to 2010 period. Time-series regression modeling indicates that the percentage of total high severity per year for a combination of yellow pine (ponderosa pine [Pinus ponderosa Lawson & C. Lawson] or Jeffrey pine [P. jeffreyi Balf.]) and mixed-conifer forests increased significantly over the 27-year period. The annual area of high-severity fire also increased significantly in yellow pine-mixed-conifer forests. The percentage of high severity in fires ≥400 ha burning in yellow pine-mixed-conifer forests was significantly higher than in fires ≥400 ha. Additionally, the number of fires ≥400 ha significantly increased over the 1950 to 2010 period. There were no significant trends in red fir (Abies magnifica A. Murray bis) forests. These results confirm and expand our earlier published results for a shorter 21-year period.
Monitoring Live Fuel Moisture Using Soil Moisture and Remote Sensing Proxies
Authors: Qi Yi , Dennison Philip E. , Spencer Jessica , Riaño David 
Published: December 2012

AbstractLive fuel moisture (LFM) is an important fuel property controlling fuel ignition and fire propagation. LFM varies seasonally, and is controlled by precipitation, soil moisture, evapotranspiration, and plant physiology. LFM is typically sampled manually in the field, which leads to sparse measurements in space and time. Use of LFM proxies could reduce the need for field sampling while potentially improving spatial and temporal sampling density. This study compares soil moisture and remote sensing data to field-sampled LFM for Gambel oak (Quercus gambelii Nutt) and big sagebrush (Artemisia tridentata Nutt) in northern Utah. Bivariate linear regression models were constructed between LFM and four independent variables. Soil moisture was more strongly correlated with LFM than remote sensing measurements, and produced the lowest mean absolute error (MAE) in predicted LFM values at most of the sites. When sites were pooled, canopy water content (CWC) had stronger correlations with LFM than normalized difference vegetation index (NDVI) or normalized difference water index (NDWI). MAE values for all proxies were frequently above 20 % LFM at individual sites. Despite this relatively large error, remote sensing and soil moisture data may still be useful for improving understanding of spatial and temporal trends in LFM.
Effect of nitrogen application on selected nutritional components of potato tubers
Authors: Hrabovská Diana , Musilová Janette , Bystrická Judita , Tomáš Ján , Bajčan Daniel 
Published: December 2012

In this work the influence of graduated nitrogene fertilizers doses to the soil on starch and vitamin C formation in potato tubers grown in field conditions in locality Veľká Čalomija was studied. The investigated potato cultivar Solara is medium early potato cultivar. The determined average starch content in potato samples ranged in interval 12,426 % - 15,084 %, while the highest starch content was determined in variant 1 (without nitrogen addition to the soil). The starch content in potato tubers was decreased in order: variant 1 (15,084 %) > variant 2 (14,427 %) > variant 3 (14,378 %) > variant 4 (14,023 %) > variant 5 (12,603 %) > variant 6 (12,426 %). The content of C vitamin was increased with the graduated nitrogen doses to the soil only till variant 4 and after that the content of vitamin C was decreased. The average content of C vitamin ranged in interval 3,786 - 6,225 mg.kg-1 of fresh matter.
Development of milk consumption and marketing analysis of its demand
Authors: Kubicová Ľubica , Habánová Marta 
Published: December 2012

The strategy of most households is to eliminate the negative effects of economic changes related mainly to the economic crisis by mobilizing available resources and reducing costs, but which cloud lead to a decrease in food consumption and changes in consumption patterns. Pensions and prices are factors that shape the demand for food and other estates. Both of these factors guarantee the economic viability of nutrition. Paper analyzes the development of the of milk consumption and level of its substitution by milk products. There was quantified the elasticity of demand and estimated own price elasticity and income elasticity. For the past 17 years, consumption of milk, except cheese, cottage cheese, sour milk products and butter, decreased. Expressed by linear regression model in recent years (since 1995) in Slovakia occurred overall reduction in the consumption of milk and dairy products by an average of 0.988 kg per capita per year. This development was mainly conditioned by the annual descent of demand for milk, as its consumption with little variation in average decreased annually by up to 1.88 kg per capita. This development is largely due to the increase of milk prices and especially the increasing supply of a wide range of quality and flavored sour milk and cheese products. Acidified milk product consumption in recent observed years increased and is expressed by the average growth factor of 0.6748 kg per capita per year. Prognosis with a five percent risk of error of estimate could increase their consumption up to 13.936 kg per capita in 2014. Consumption of cheese and curd should the increase the current trend by an average of 0.0476 kg per person and would be able to achieve the level of consumption of 11.03 kg per capita in 2014.
A Case of Lung Squamous Cell Carcinoma With Metastases to the Duodenum and Small Intestine
Authors: Yamada Hideki , Akahane Takuya , Horiuchi Atsushi , Shimada Ryu , Shibuya Hajime , Hayama Tamuro , Nozawa Keijirou , Ishihara Souichirou , Matsuda Keiji , Watanabe Toshiaki 
Published: December 2012

Abstract
Gastrointestinal metastasis of lung cancer is fairly rare, and metastasis to the duodenum is very uncommon. We report a case of duodenum and small intestine metastases of lung squamous cell carcinoma. The patient was a 66-year-old man. He was diagnosed with lung squamous cell carcinoma (T4N3M1 [mediastinum, cervical lymph node, and duodenum metastases], stage IV). He noted a sense of abdominal fullness on the evening of the day chemoradiotherapy was given, and emergency surgery was performed for suspected perforation of the digestive tract. Intraoperative findings included a tumor in the small intestine with a perforation at the tumor site; partial resection of the small intestine, including the tumor, was performed. Small intestine metastasis of lung cancer was diagnosed following histopathologic examination. When lung cancer patients complain of abdominal symptoms, it is important to consider gastrointestinal metastases in diagnosis and treatment.
Complications of Videolaparoscopic Cholecystectomy: A Retrospective Analysis of 1037 Consecutive Cases
Authors: Amboldi Massimo , Amboldi Angelo , Gherardi Gherardo , Bonandrini Luigi 
Published: December 2012

Abstract
The authors describe some of the complications that appear more frequently with laparoscopic cholecystectomy than open cholecystectomy and the mechanisms underlying the occurrence of bile duct injuries, making reference to 0.58% of bile duct injuries in 1037 consecutive laparoscopic cases and the possibility of treatment.
Postoperative Defecatory Function of an Ileal Pouch–Anal Anastomosis After a Restorative Proctocolectomy for Ulcerative Colitis: Evaluation Using Fecoflowmetry
Authors: Kobayashi Yasuo , Iiai Tsuneo , Yagi Minoru , Okamoto Haruhiko , Tani Tatsuo , Hatakeyama Katsuyoshi 
Published: December 2012

Abstract
An ileal pouch is usually reconstructed as an alternative to a neorectum after a total proctocolectomy for ulcerative colitis (UC). However, the real defecatory function of an ileal pouch is uncertain. This study was designed to analyze the functional and clinical outcomes after a proctocolectomy and ileal pouch–anal anastomosis (IPAA) for UC using fecoflowmetry (FFM). Sixteen patients who underwent IPAA for UC between 1990 and 2005 were studied. They were evaluated by FFM, together with Kelly's clinical score (KCS), and anorectal manometric assessments were also performed. FFM showed that the fecoflow pattern (FFP) of 14 patients (87%) was the block type and of 2 patients (13%) was the segmental type. The clinical score and tolerance volume showed no improvement 1 year or more after IPAA. However, the value of the maximum fecal stream flow rate (Fmax) improved with time. FFM shows that the defecatory function improved after IPAA, and it may therefore contribute to a good long-term outcome after the surgery.
Free Colonic Perforation in a Patient With Crohn's Disease and Loop Ileostomy: Report of a Case
Authors: Ishihara Soichiro , Watanabe Toshiaki , Nagawa Hirokazu 
Published: December 2012

Abstract
Free bowel perforation in Crohn's disease is a relatively rare complication. In this report, we present a case of free colonic perforation in a Crohn's disease patient with loop ileostomy previously constructed for intractable perianal abscess. Normally, fecal diversion by ileostomy results in an improvement in Crohn's colitis. However, in some cases, fecal diversion is reported to adversely affect the inflammation of the diverted bowel, and it is this unusual complication of Crohn's disease that we discuss here.
Perforation of the Small Bowel Due to Metastasis From Tongue Cancer
Authors: Aoyagi Yoshiko , Matsuda Keiji , Shimada Ryu , Horiuchi Atsushi , Shibuya Hajime , Nakamura Keisuke , Iinuma Hisae , Hayama Tamuro , Yamada Hideki , Nozawa Keijiro , Ishihara Soichiro , Watanabe Toshiaki 
Published: December 2012

Abstract
Distant small bowel metastases from head and neck squamous cell carcinomas are extremely rare, and tongue cancer metastasizing to the small bowel has not been previously reported. We describe a 40-year-old male patient who underwent subtotal gross laryngectomy for squamous cell carcinoma of the tongue in February 2007 and then presented in November 2008 with severe abdominal pain. Abdominal computed tomography (CT) and X-rays revealed free air, suggesting intestinal perforation. Emergency surgery revealed a 10-mm perforation at the ileum and a palpable hard tumor at the perforation site. The ileum was resected, and pathologic findings showed squamous cell carcinoma at the perforation site, which was consistent with metastasis from tongue cancer.
Severance of a Ventriculoperitoneal Shunt Catheter Implanted Between the Cerebral Ventricle and Peritoneal Cavity, Resulting in Protrusion From the Anus
Authors: Hayama Tamuro , Ishihara Soichiro , Yamazaki Norihito , Akahane Takuya , Shimada Ryu , Horiuchi Atsushi , Shibuya Hajime , Yamada Hideki , Nozawa Keijiro , Matsuda Keiji , Watanabe Toshiaki 
Published: December 2012

Abstract
One rare complication of a ventriculoperitoneal (VP) shunt is perforation of the gastrointestinal tract by the catheter. We report a case in which the catheter severed spontaneously inside the peritoneal cavity, creating a communication between the intestinal tract and the peritoneal cavity. The patient was a 41-year-old man who presented with a VP shunt catheter protruding from the anus. Computed tomography showed that the VP shunt catheter, which had been put in place 25 years earlier, had severed spontaneously. The distal end had then perforated and entered the intestinal tract. The patient was hospitalized and emergency surgery was performed to repair the intestinal tract perforation caused by the end of the VP shunt catheter. Laparotomy revealed that the catheter had perforated the sigmoid colon. The VP shunt catheter was removed, and the perforation in the intestinal tract was closed by suturing. The patient was discharged on postoperative day 20.
Sacrococcygeal Pilonidal Disease
Authors: Majeski James , Stroud Jason 
Published: December 2012

Abstract
The ideal treatment for pilonidal disease remains controversial with many accepted procedures in current clinical use. This case series is focused on the results of the Bascom procedure for the treatment of sacrococcygeal pilonidal disease. The records of 127 consecutive patients treated by the authors for sacrococcygeal pilonidal disease were reviewed. The Bascom surgical procedure was performed on 127 consecutive patients in a clinical surgical practice. The series included 98 male and 29 female patients. The mean age of the patients reported in this series was 23 years, with a range of 14 to 49 years of age. The lateral incision healed in a mean of 12 days, with a range of 8 to 30 days. Recurrent disease occurred in 3 patients in this series. The Bascom surgical procedure for the treatment of sacrococcygeal pilonidal disease was found in this clinical practice series to have an excellent cure rate with a low recurrence rate. Patient satisfaction was high.
Carcinomas Associated With Lynch Syndrome: A Family History
Authors: Pinar Gul , Ayhan Ali 
Published: December 2012

Abstract
Lynch syndrome is a rare and inherited defect disorder. People who have Lynch syndrome are strongly predisposed to develop colorectal cancer as well as several other types of cancer. The aim of this study was to explore features of ovarian cancers arising in families with Lynch syndrome. This study was a case report based on family history examining three patients with a new diagnosis of colorectal adenocarcinoma with ovarian cancer. Family members of carriers of the mutations were counseled, and those found to be at risk were offered mutation testing. The clinical criteria of the Amsterdam II guidelines for Lynch syndrome were used in this study. This is a maternal history of a 27-year-old woman sharing the destiny of her 48-year-old mother and 45-year-old aunt, both of which were suffering from Lynch syndrome associated with ovarian cancer. The maternal grandmother and maternal uncle of this young woman also suffered from colon cancer in their forties. The medical implications for the carrier relatives were considered as the maternal branch of the family.
Complications After Pancreaticoduodenectomy for Pancreatic Cancer: A Retrospective Study
Authors: Ren Shiyan , Liu Peng , Zhou Ningxin , Dong Jiahong , Liu Rong , Ji Wenbin 
Published: December 2012

Abstract
Postoperative complications, such as pancreatic fistulae, after pancreaticoduodenectomy for pancreatic cancers are associated with surgical outcomes of patients with pancreatic cancers. A total of 160 patients with pancreatic cancers undergoing pancreaticoduodenectomy were retrospectively analyzed. Patients were grouped into a fistulae group (n  =  34) and a nonfistulae group (n  =  126). The fistulae group had a significantly higher morbidity rate than the nonfistulae group (P &lt; 0.0001), but hospital mortality was not different in both groups (P  =  0.481). There was a higher incidence of intra-abdominal hemorrhage in patients with pancreatic fistulae than in those without fistulae. Two patients in fistulae group underwent reoperation. Patients with pancreatic fistulae had significantly longer hospital stay than those without fistulae. Pancreatic duct diameter, smoking, years of tobaccos consumption, preoperative jaundice, and surgical hours were associated with risk of fistulae on univariate analysis. In a multivariate analysis, diameter of pancreatic duct, surgical hours, and preoperative jaundice were independent risk factors of pancreatic fistulae. Incidence of pancreatic fistulae after pancreaticoduodenectomy is significantly influenced by the size of pancreatic duct diameter, surgical time, and preoperative jaundice. Early postoperative hemorrhage could be cautiously prevented. The survival is not significantly impacted by pancreatic fistulae.
Significance of Hepatic Lymph Node Metastasis in Patients With Unresectable Synchronous Liver Metastasis of Colorectal Cancer
Authors: Ishida Hideyuki , Ishibashi Keiichiro , Ohsawa Tomonori , Okada Norimichi , Kumamoto Kensuke , Haga Norihiro 
Published: December 2012

AbstractThe frequency and significance of hepatic lymph node (HLN) metastasis were retrospectively evaluated in 43 patients with unresectable synchronous liver metastasis of colorectal cancer who underwent resection of the primary tumor and histopathologic evaluation of HLNs between March 1997 and August 2007. HLN metastasis was detected in 12 patients (27.9%). No significant correlations were observed between the presence of HLN metastasis and any of the 12 clinicopathologic factors examined. On multivariate analysis using the Cox proportional hazards model, the presence of HLN metastasis (P  =  0.002), along with a large number (≥4) of regional lymph node metastases (P  =  0.003), and nonuse of oxaliplatin-based chemotherapy (P  =  0.005) were identified as independent risk factors for shorter survival. To establish a new therapeutic strategy for initially unresectable liver metastasis of colorectal cancer, HLNs should be examined histologically in patients undergoing resection of hepatic lesions when they are rendered resectable by effective chemotherapy.