bluuebunny/crossref_metadata_2025_split huggingface dataset:
Recurrent Pilonidal Sinus: Lay Open or Flap Closure, Does It Differ?
Authors: Yoldas Tayfun , Karaca Can , Unalp Omer , Uguz Alper , Caliskan Cemil , Akgun Erhan , Korkut Mustafa 
Published: November 2013

Abstract
Treatment options of pilonidal sinus, which has high recurrence rates, is still controversial. In this study, we aimed to analyze for possible factors affecting recurrence. Forty-one patients with recurrent pilonidal sinus were included in this study. Of them, 33 were male and 9 were female (mean age, 24.9 years; age range, 16–42). Factors (i.e., risk factors) were detected in 32 patients. Excision–secondary healing and lay open was performed on 30 of the patients admitted with recurrence. Excision and flap closure was applied on 11 patients. Our recurrence rate was 9.7%. The recurrence rate of our study is compatible with the literature. Comparative studies are needed to determine the appropriate method to decrease recurrence rate.
Small Intestinal Strangulation Due to a Rare Type of Primary Internal Hernia
Authors: Takeda Makoto , Ohnuki Yoshinori , Uchiyama Takashi , Kubota Osamu , Ohishi Kousuke 
Published: November 2013

Abstract
Internal hernias in which the gate is located in the paracolic gutter are rare. A 75-year-old man was admitted to our hospital with severe epigastric pain without past history of laparotomy and/or trauma. He was diagnosed with strangulation of the ileum by the findings of computed tomography, and the operation was performed. During laparotomy, the small intestine was found to be strangulated and to enter the retroperitoneum from the right paracolic gutter near the hepatic flexure. The patient was diagnosed with an internal hernia, which differed from a pericecal hernia in that the hernia gate was located along the paracolic gutter near the hepatic flexure far from the cecum. Hence, it was considered to be a rare type of internal hernia. We report the clinical presentation and imaging findings of this rare internal hernia.
Surgical Approach to Splenic Hydatid Cyst: Single Center Experience
Authors: Eris Cengiz , Akbulut Sami , Yildiz Mehmet Kamil , Abuoglu Hasan , Odabasi Mehmet , Ozkan Erkan , Atalay Suleyman , Gunay Emre 
Published: November 2013

Abstract
The benefits and risks of surgery for splenic hydatid cyst (SHC) remain controversial. We aimed to share our experience about a surgical approach for SHC. Sixteen consecutive patients with SHC disease who underwent open splenectomy at our hospital between January 2006 and July 2012 were retrospectively evaluated. Data on the patients' demographic features, clinical findings, radiological and serological diagnostic methods, and surgical and medicinal treatment options were collected and used to generate descriptive profiles of diagnosis, treatment course, and outcome. The patient population was composed of 6 females and 10 males, with an age range of 18 to 79 years (mean age: 47.0 ± 18.0). Radiological examinations detected hydatid cysts in spleen alone (n = 7) or both spleen and liver (n = 9). Preoperative serological testing identified 13 of the patients as IHA positive. All except 1 patient received a 10- to 21-day preoperative course of albendazole therapy and all patients received vaccination 1 week prior to surgery. Seven patients underwent splenectomy. The remaining patients underwent splenectomy with partial cystectomy and omentopexy (n = 6), partial cystectomy and unroofing (n = 1), pericystectomy (n = 1), or pericystectomy with partial nephrectomy (n = 1). All except one patient received a 10- to 45-day postoperative course of albendazole. No patients developed serious complications or signs of recurrence during the follow-up. The clinical profile of SHC disease at our hospital includes diagnosis by radiological methods, splenectomy treatment by simple or concomitant procedures according to the patient's symptoms, cyst size, number and localization, and compression of adjacent organs, and adjunct vaccination to decrease risk of postoperative septic complications. This profile is associated with low risk of complications and high therapeutic efficacy.
Tooth cusp sharpness as a dietary correlate in great apes
Authors: Berthaume Michael A. 
Published: November 2013

ABSTRACTMammalian molars have undergone heavy scrutiny to determine correlates between morphology and diet. Here, the relationship between one aspect of occlusal morphology, tooth cusp radius of curvature (RoC), and two broad dietary categories, folivory and frugivory, is analyzed in apes. The author hypothesizes that there is a relationship between tooth cusp RoC and diet, and that folivores have sharper teeth than frugivores, and further test the correlation between tooth cusp RoC and tooth cusp size. Eight measures of tooth cusp RoC (two RoCs per cusp) were taken from 53 M2s from four species and subspecies of frugivorous apes (Pongo pygmaeus, Pan troglodytes troglodytes, Pan troglodytes schweinfurthii, and Gorilla gorilla gorilla) and two subspecies of folivorous apes (Gorilla beringei beringei, and Gorilla beringei graueri). Phylogenetically corrected ANOVAs were run on the full dataset and several subsets of the full dataset, revealing that, when buccolingual RoCs are taken into account, tooth cusp RoCs can successfully differentiate folivores and frugivores. PCAs revealed that folivores consistently had duller teeth than frugivores. In addition, a weak, statistically significant positive correlation exists between tooth cusp size and tooth cusp RoC. The author hypothesizes differences in tooth cusp RoC are correlated with wear rates, where, per vertical unit of wear, duller cusps will have a longer length of exposed enamel ridge than sharper cusps. More data need to be gathered to determine if the correlation between tooth cusp RoC and tooth cusp size holds true when small primates are considered. Am J Phys Anthropol 153:226–235, 2014. © 2013 Wiley Periodicals, Inc.
Influence of humidity, temperature, and the addition of activated carbon on the preparation of cellulose acetate membranes and their ability to remove arsenic from water
Authors: Terrazas‐Bandala Luisa Piroshka , Gonzalez‐Sanchez Guillermo , Garcia‐Valls Ricard , Gumi Tania , Beurroies Isabelle , Denoyel Renaud , Torras Carles , Ballinas‐Casarrubias Lourdes 
Published: November 2013

ABSTRACTSeveral composite membranes have been prepared from cellulose triacetate (CTA) and activated carbon (AC) by solvent casting, varying temperature from 35 to 55°C and relative humidity (RH): 10–70%. Some conditions promoted AC particle agglomeration which is evidenced by SEM and IFME® program. In those membranes, where homogeneity is attained, a deep characterization has been carried out by DMA, MDSC, thermoporometry, solute transport, and AFM. When AC is added in films, Tg is lowered and the fraction of pores with bigger size is augmented. Molecular weight cut off calculated by solute transport, increases from 801.15 to 1194.29 kDa using 1% AC at RH 70% and T 35°C. Water flux is of 5.23 Lm−2 h−1 bar−1. Arsenic removal has been performed, achieving a 45% tested from a 500 ppb arsenic solution, where several factors such as electrical rejection, adsorption and exclusion, could contribute to the total membrane nanofiltration process. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40134.
Fe‐mediated ICAR ATRP of styrene and acrylonitrile in polyethylene glycol
Authors: Wang Guo‐Xiang , Lu Mang , Hou Zhao‐Hui , Gao Yong , Liu Li‐Chao , Wu Hu 
Published: November 2013

ABSTRACTIn this contribution, random copolymers of p(styrene‐co‐acrylonitrile) via initiators for continuous activator regeneration (ICAR) in atom transfer radical polymerization (ATRP) (ICAR ATRP) of styrene and acrylonitrile (SAN) were synthesized at 90°C in low molecular weight polyethylene glycol (PEG‐400) using CCl4 as initiator, FeCl3·6H2O as catalyst, succinic acid as ligand and thermal radical initiator azobisisobutyronitrile (AIBN) as thermal free radical initiator. In this system, well‐defined copolymer of SAN was achieved. The kinetics results showed that the copolymerization rate obeyed first‐order kinetics model with respect to the monomer concentration, and a linear increase of the molecular weights with the increasing of monomer conversion with narrow molecular weight distribution was observed in the range of 1.1–1.5. The conversion decreased with increasing the amount of FeCl3·6H2O and increased with increasing the molar ratio of [St]0/[AN]0/[CCl4]0 and temperature. AIBN has a profound effect on the polymerization. The activation energy was 55.67 kJ mol−1. The living character of copolymerization was confirmed by chain extension experiment. The resultant random copolymer was characterized by 1H‐NMR and GPC. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40135.
Uncalibrated Image‐Based Visual Servoing of Rigid‐Link Electrically Driven Robotic Manipulators
Authors: Liang Xinwu , Wang Hesheng , Chen Weidong , Liu Yun‐Hui 
Published: November 2013

AbstractIn this paper, the uncalibrated fixed‐camera visual servoing problem of robot manipulators will be addressed by considering its full motor dynamics. A new adaptive image‐space visual servoing strategy without both the joint and visual acceleration measurements is presented, which can handle uncertainties in the camera intrinsic and extrinsic parameters, the robot kinematic and dynamic parameters, and the motor dynamic parameters. The proposed scheme is developed based on the depth‐independent interaction matrix in order to deal with the nonlinear dependence of image Jacobian matrix on the unknown parameters, which allows the camera and robot kinematic parameters in the closed‐loop dynamics to be linearly parameterized. In this way, adaptive laws for the online estimation of the unknown camera, kinematic, rigid dynamic, and motor dynamic parameters can be developed very efficiently. Furthermore, a joint velocity observer will also be presented to solve the problem without both the joint and visual acceleration measurements. To show asymptotic convergence of image errors, stability analysis based on both the rigid‐link robot dynamics and full motor dynamics will be performed by using Lyapunov theory. Simulation results will be given to validate the performance of the proposed scheme.
Local recurrence after stenting for obstructing left-sided colonic cancer
Authors: Gorissen K J , Tuynman J B , Fryer E , Wang L , Uberoi R , Jones O M , Cunningham C , Lindsey I 
Published: November 2013

Abstract

Background
Self-expanding metallic stents (SEMS) may be used in acute obstructing left-sided colonic cancers to avoid high-risk emergency surgery. However, oncological safety remains uncertain. This study evaluated the long-term oncological outcome of SEMS as a bridge to elective curative surgery versus emergency resection.

Methods
A consecutive prospective cohort of patients admitted with obstructing left-sided colonic cancer between 2006 and 2012 was analysed. The decision to stent as a bridge to surgery or to perform emergency surgery was made by the on-call consultant colorectal surgeon in conjunction with a consultant interventional radiologist; when appropriate, they performed the stent procedure together. Primary outcomes were local and distant recurrence, and overall survival. Secondary outcomes were postoperative complications, in-hospital mortality, proportion of procedures undertaken laparoscopically, and anastomosis and stoma rates.

Results
In total, 105 patients with obstructing left-sided colonic cancer were treated with curative intent; 62 were treated with SEMS as a bridge to surgery and 43 had emergency resection. In patients aged 75 years or less, stenting and delayed surgery was associated with a higher local recurrence rate compared with emergency surgery at the end of follow-up (32 versus 8 per cent; P = 0·038). This did not translate into a significant difference in overall survival.

Conclusion
SEMS was associated with an increased local recurrence rate.
Population-based cohort study comparing 30- and 90-day institutional mortality rates after colorectal surgery
Authors: Byrne B E , Mamidanna R , Vincent C A , Faiz O 
Published: November 2013

Abstract

Background
Surgical mortality results are increasingly being reported and published in the public domain as indicators of surgical quality. This study examined how mortality outlier status at 90 days after colorectal surgery compares with mortality at 30 days and subsequent intervals in the first year after surgery.

Methods
All adults undergoing elective and emergency colorectal resection between April 2001 and February 2007 in English National Health Service (NHS) Trusts were identified from administrative data. Funnel plots of postoperative case mix-adjusted institutional mortality rate against caseload were created for 30, 90, 180 and 365 days. High- or low-mortality unit status of individual Trusts was defined as breaching upper or lower third standard deviation confidence limits on the funnel plot for 90-day mortality.

Results
A total of 171 688 patients from 153 NHS Trusts were included. Some 14 537 (8·5 per cent) died within 30 days of surgery, 19 466 (11·3 per cent) within 90 days, 23 942 (13·9 per cent) within 180 days and 31 782 (18·5 per cent) within 365 days. Eight institutions were identified as high-mortality units, including all four units with high outlying status at 30 days. Twelve units were low-mortality units, of which six were also low outliers at 30 days. Ninety-day mortality correlated strongly with later mortality results (rs = 0·957, P &lt; 0·001 versus 180-day mortality; rs = 0·860, P &lt; 0·001 versus 365-day mortality).

Conclusion
Extending mortality reporting to 90 days identifies a greater number of mortality outliers when compared with the 30-day death rate. Ninety-day mortality is proposed as the preferred indicator of perioperative outcome for local analysis and public reporting.
Altered central pain processing after pancreatic surgery for chronic pancreatitis
Authors: Bouwense S A , Ahmed Ali U , ten Broek R P , Issa Y , van Eijck C H , Wilder-Smith O H , van Goor H 
Published: November 2013

Abstract

Background
Chronic abdominal pain is common in chronic pancreatitis (CP) and may involve altered central pain processing. This study evaluated the relationship between pain processing and pain outcome after pancreatic duct decompression and/or pancreatic resection in patients with CP.

Methods
Patients with CP underwent quantitative sensory testing. Pain processing was measured via electrical pain detection (ePDT) and electrical pain tolerance (ePTT) thresholds in dermatomes C5 and L4. Inhibitory descending pain control mechanisms were assessed using the conditioned pain modulation (CPM) paradigm. Healthy controls and patients with CP were compared, and patients with CP and a poor pain outcome (visual analogue scale (VAS) score greater than 30) were compared with those with a good pain outcome (VAS score 30 or less).

Results
Forty-eight patients with CP had lower ePDT, ePTT and CPM responses compared with values in 15 healthy controls (P &lt; 0·030). The sum of ePDT values was lower in patients with a poor pain outcome than in those with a good outcome (median 7·1 versus 11·2 mA; P = 0·008). There was a correlation with the VAS score and the sum of ePDT values (rs = −0·45, P = 0·016) and ePTT values (rs = −0·46, P = 0·011), and CPM response (rs = −0·43, P = 0·006) in patients with CP.

Conclusion
After pain-relieving pancreatic surgery, patients with CP exhibit altered central pain processing compared with that in healthy controls. Poor pain outcomes are associated with more central sensitization and more pronociceptive descending pain modulation, and this should be considered when managing persistent pain after pain-relieving surgery for CP.
Presented in part to the 7th Alpine Liver and Pancreatic Surgery Meeting, Madonna di Campiglio, Italy, January 2012, and the American Pancreatic Association/International Association of Pancreatology Joint Annual Meeting, Miami, Florida, USA, October–November 2012; published in abstract form as Pancreas 2012; 41: 1350
Communication in the operating theatre
Authors: Weldon S-M , Korkiakangas T , Bezemer J , Kneebone R 
Published: November 2013

Abstract

Background
Communication is extremely important to ensure safe and effective clinical practice. A systematic literature review of observational studies addressing communication in the operating theatre was conducted. The focus was on observational studies alone in order to gain an understanding of actual communication practices, rather than what was reported through recollections and interviews.

Methods
A systematic review of the literature for accessible published and grey literature was performed in July 2012. The following information was extracted: year, country, objectives, methods, study design, sample size, healthcare professional focus and main findings. Quality appraisal was conducted using the Critical Appraisal Skills Programme. A meta-ethnographic approach was used to categorize further the main findings under key concepts.

Results
Some 1174 citations were retrieved through an electronic database search, reference lists and known literature. Of these, 26 were included for review after application of full-text inclusion and exclusion criteria. The overall quality of the studies was rated as average to good, with 77 per cent of the methodological quality assessment criteria being met. Six key concepts were identified: signs of effective communication, signs of communication problems, effects on teamwork, conditions for communication, effects on patient safety and understanding collaborative work.

Conclusion
Communication was shown to affect operating theatre practices in all of the studies reviewed. Further detailed observational research is needed to gain a better understanding of how to improve the working environment and patient safety in theatre.
Neuroanatomical correlates of cognitive functioning in prodromal Huntington disease
Authors: Harrington Deborah L. , Liu Dawei , Smith Megan M. , Mills James A. , Long Jeffrey D. , Aylward Elizabeth H. , Paulsen Jane S. ,   PREDICT‐HD Investigators Coordinators of the Huntington Study Group
Published: November 2013

AbstractIntroductionThe brain mechanisms of cognitive impairment in prodromal Huntington disease (prHD) are not well understood. Although striatal atrophy correlates with some cognitive abilities, few studies of prHD have investigated whether cortical gray matter morphometry correlates in a regionally specific manner with functioning in different cognitive domains. This knowledge would inform the selection of cognitive measures for clinical trials that would be most sensitive to the target of a treatment intervention.MethodIn this study, random forest analysis was used to identify neuroanatomical correlates of functioning in five cognitive domains including attention and information processing speed, working memory, verbal learning and memory, negative emotion recognition, and temporal processing. Participants included 325 prHD individuals with varying levels of disease progression and 119 gene‐negative controls with a family history of HD. In intermediate analyses, we identified brain regions that showed significant differences between the prHD and the control groups in cortical thickness and striatal volume. Brain morphometry in these regions was then correlated with cognitive functioning in each of the domains in the prHD group using random forest methods. We hypothesized that different regional patterns of brain morphometry would be associated with performances in distinct cognitive domains.ResultsThe results showed that performances in different cognitive domains that are vulnerable to decline in prHD were correlated with regionally specific patterns of cortical and striatal morphometry. Putamen and/or caudate volumes were top‐ranked correlates of performance across all cognitive domains, as was cortical thickness in regions related to the processing demands of each domain.ConclusionsThe results underscore the importance of identifying structural magnetic resonance imaging (sMRI) markers of functioning in different cognitive domains, as their relative sensitivity depends on the extent to which processing is called upon by different brain networks. The findings have implications for identifying neuroimaging and cognitive outcome measures for use in clinical trials.
ChemInform Abstract: Growth and Characterization of Centimeter‐Sized Ba2LaFeNb4O15 Crystals from High‐Temperature Solution under a Controlled Atmosphere.
Authors: Josse Michael , et al. et al. 
Published: November 2013

AbstractPolycrystalline Ba2LaFeNb4O15 is prepared by solid state reaction of BaCO3, La2O3, Fe2O3, and Nb2O5 at 1280 °C for 12 h.
ChemInform Abstract: Crystal Structures and Magnetic Properties of Lanthanide Containing Borates LnM(BO3)2 (Ln: Y, Ho—Lu; M: Sc, Cr).
Authors: Doi Yoshihiro , Satou Tatsuya , Hinatsu Yukio 
Published: November 2013

AbstractLnM(BO3)2 (Ln: Y, Ho—Lu; M: Sc, Cr) is prepared by solid state reaction of Ln2O3, M2O3, and H3BO3 (30% excess for volatility loss compensation) in the ratio of 1:1:5.2 (repeated heating to 1100 °C, 6 h).
ChemInform Abstract: A Neutron Diffraction Study and Mode Analysis of Compounds of the System La1‐xSrxFeO3‐xFx (x = 1, 0.8, 0.5, 0.2) and an Investigation of Their Magnetic Properties.
Authors: Clemens Oliver , Berry Frank J. , Wright Adrian J. , Knight Kevin S. , Perez‐Mato J. M. , Igartua J. M. , Slater Peter R. 
Published: November 2013

AbstractLa1‐xSrxFeO3‐xFx (x = 1, 0.8, 0.5, 0.2, 0) phases are prepared by solid state reaction of stoichiometric mixtures of La2O3, SrCO3, and Fe2O3 (1250 °C, 30 h) followed by fluorination with poly(vinylidenefluoride) at 400 °C for 24 h.
ChemInform Abstract: Dy—Mn—Si as a Representative of Family of “Dy—Transition Metal—Si” Systems: Its Isothermal Sections, Empirical r Prod. Type: FTPules and New Rare‐Earth Manganese Silicides.
Authors: Morozkin A. V. , Knotko A. V. , Vapaskurt V. O. , Provino A. , Manfrinetti P. , Yao Jinlei , Yuan Fang , Mozharivskyj Y. 
Published: November 2013

AbstractA series of samples of the Dy—Mn—Si system is prepared by arc melting of the elements followed by annealing at 870—170 K.
ChemInform Abstract: Synthesis of Monoclinic Li[Li0.2Mn0.54Ni0.13Co0.13] O2 Nanoparticles by a Layered‐Template Route for High‐Performance Li‐Ion Batteries.
Authors: Qiu Shen , Chen Zhongxue , Pei Feng , Wu Fayuan , Wu Yue , Ai Xinping , Yang Hanxi , Cao Yuliang 
Published: November 2013

AbstractThe nanoparticles of title are synthesized by triconstituent coassembly of surfactant F127, resols, and the nitrates of Li, Mn, Ni, and Co (100 °C, 24 h, followed by calcination at 450 °C for 4 h and at 850 °C for 10 h).
ChemInform Abstract: Five New Chalcohalides, Ba3GaS4X (X: Cl, Br), Ba3MSe4Cl (M: Ga, In), and Ba7In2Se6F8: Syntheses, Crystal Structures, and Optical Properties.
Authors: Feng Kai , Yin Wenlong , Lin Zuohong , Yao Jiyong , Wu Yicheng 
Published: November 2013

AbstractPolycrystalline powders of Ba3GaS4X (X: Cl, Br), Ba3MSe4Cl (M: Ga, In), and Ba7In2Se6F8 are prepared by solid state reactions of stoichiometric mixtures of BaS or BaSe, M2O3, and BaX2 (sealed silica tubes, 1173 K, 20 h).
ChemInform Abstract: Flux Synthesis and Structural and Spectroscopic Characterization of a Cobalt Europium Trisilicate.
Authors: Wierzbicka‐Wieczorek Maria , Lenz Christoph , Giester Gerald 
Published: November 2013

AbstractLight violet crystals of CoEu2Si3O10 are synthesized from MoO3‐based flux mixtures containing Cs2CO3, CoCO3, BaCO3, Eu2O3, SiO2, and MoO3 (Pt crucible, 1080 °C, 3 h).
ChemInform Abstract: Preparation of anti‐Vicinal Amino Alcohols: Asymmetric Synthesis of D‐erythro ‐Sphinganine, (+)‐Spisulosine, and D‐ribo‐Phytosphingosine.
Authors: Calder Ewen D. D. , Zaed Ahmed M. , Sutherland Andrew 
Published: November 2013

AbstractTwo protocols for the Overman rearrangement are developed which allow the synthesis of anti‐vicinal amino alcohols [cf.