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X F Guo, Z G Li
Robotic assisted surgery system is the most advanced minimally invasive surgical platform in the world, and this system has been widely used in cardiac surgery, urology surgery, gynecology surgery and general surgery. Although the application of this system was relative late in esophageal surgery, it has been developing vigorously. According to the research progress and practical experience in the world, robot assisted minimally invasive esophagectomy (RAMIE) has the same safety and effectiveness as traditional open esophagectomy (OE) and thoracoscopic laparoscopic esophagectomy (TLE)...
April 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
J Q Shen, Q Ji, W J Ding, L M Xia, L Wei, C S Wang
Objective: To evaluate in-hospital and mid-term outcomes of sequential versus separate grafting of in situ skeletonized left internal mammary artery (LIMA) to the left coronary system in a single-center, propensity-matched study. Methods: After propensity score matching, 120 pairs of patients undergoing first, scheduled, isolated coronary artery bypass grafting (CABG) with in situ skeletonized LIMA grafting to the left anterior descending artery (LAD) territory were entered into a sequential group (sequential grafting of LIMA to the diagonal artery and then to the LAD) or a control group (separate grafting of LIMA to the LAD)...
March 13, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Shima Rahim Pouran, Abolfazl Bayrami, Mohammad Saleh Shafeeyan, Abdul Aziz Abdul Raman, Wan Mohd Ashri Wan Daud
Oxidative treatment of a cationic dye solution, methylene blue, was investigated using magnetite nanoparticles and goethite in heterogeneous Fenton-like reaction, and ferrous ions in homogeneous Fenton-reaction. The aim was to compare the degradation efficiencies of the studied catalysts for decolorization of methylene blue solution as the model organic pollutant. Response surface methodology (RSM) was applied to determine the optimal operational conditions for magnetite/H2O2 and goethite/H2O2 systems. The [H2O2] of 0...
March 2018: Acta Chimica Slovenica
W C Chen, Y T Chang, S F Chen, W C Lin, Y Y Su, S D Luo
BACKGROUND: Dysregulation of the autonomic system can affect sinonasal physiological function and may exacerbate the symptom burden associated with rhinosinusitis. However, the association between autonomic dysfunction and chronic rhinosinusitis (CRS) has seldom been studied. Here, we investigated the relationship between autonomic dysfunction and CRS. METHODS: Patients with CRS who failed medical treatment were prospectively enrolled. All patients underwent pre-operative examinations and completed questionnaires, including the reflux symptom index (RSI) and the Sino-nasal Outcome Test-22 (SNOT-22)...
March 21, 2018: Rhinology
Takuya Nikaido, Masahiko Sumitani, Miho Sekiguchi, Shinichi Konno
OBJECTIVES: To develop screening tools for neuropathic pain caused by spinal disorders, the Spine painDETECT questionnaire (SPDQ) and its short-form version (SF-SPDQ), by modifying the Japanese version of the painDETECT questionnaire (PDQ-J), and to validate these tools. METHODS: Using data from patients with neuropathic pain caused by spinal disorders (NeP-SD) and patients with nociceptive pain caused by joint disorders (NocP) as controls, we devised a scoring system for the SPDQ by calculating weighting coefficients for nine PDQ-J items...
2018: PloS One
ByungWan Jo, Rana Muhammad Asad Khan
The implementation of wireless sensor networks (WSNs) for monitoring the complex, dynamic, and harsh environment of underground coal mines (UCMs) is sought around the world to enhance safety. However, previously developed smart systems are limited to monitoring or, in a few cases, can report events. Therefore, this study introduces a reliable, efficient, and cost-effective internet of things (IoT) system for air quality monitoring with newly added features of assessment and pollutant prediction. This system is comprised of sensor modules, communication protocols, and a base station, running Azure Machine Learning (AML) Studio over it...
March 21, 2018: Sensors
Nico E Knibbe, Elien Zwaenepoel, Hanneke Jj Knibbe, Dimitri Beeckman
The Danish automated Vendlet V5s repositioning system is intended to reduce pressure ulcer risk in patients and work-related musculoskeletal disorders (MSDs) in caregivers. In two Belgian nursing homes, 13 residents with mobility levels C, D and E experienced the repositioning system, operated by 35 caregivers, for 4 weeks. Data about skin condition, nursing time needed for repositioning and MSD symptoms were collected. The use of the repositioning system was not associated with the development of nor a reduction in skin problems; the study included residents who were vulnerable to or already had pressure ulcers...
March 22, 2018: British Journal of Nursing: BJN
Kallol Mukherjee, Majji Shankar, Koushik Ghosh, Akhila K Sahoo
A nontrivial Ru-catalyzed one-pot sequential oxidative coupling of a (hetero)arene/vinylic/chromene system with alkyne and quinone is presented; the methyl phenyl sulfoximine (MPS) directing group is vital. This cyclization forms four (two C-C and two C-N) bonds in a single operation and produces unusual spiro-fused-isoquinolones with a broad scope. The release of phenyl methyl sulfoxide makes the MPS group transformable. A deuterium scrambling study sheds light on the reaction path.
March 21, 2018: Organic Letters
Yan-Dong Guo, Hui-Feng Liu, Hong-Li Zeng, Xiao-Hong Yan, Xiao-Chen Song
Unlike graphene nanoribbons, zigzag monolayer hexagonal boron nitride nanoribbons (ZBNNRs) possess two distinct edges (B and N edges). Using first-principles calculations, we investigate the spin-dependent electronic transport of ZBNNRs with edge defects. It is found that the defects could make the system operate as a dual spin filter, where the direction of spin polarization is switched by the defect. Further analysis shows that the transmission eigenchannels for the opposite spins reside spatially separated on opposite edges...
March 21, 2018: Physical Chemistry Chemical Physics: PCCP
Minseok Kwon, Sangseob Leem, Joon Yoon, Taesung Park
BACKGROUND: With the rapid advancement of array-based genotyping techniques, genome-wide association studies (GWAS) have successfully identified common genetic variants associated with common complex diseases. However, it has been shown that only a small proportion of the genetic etiology of complex diseases could be explained by the genetic factors identified from GWAS. This missing heritability could possibly be explained by gene-gene interaction (epistasis) and rare variants. There has been an exponential growth of gene-gene interaction analysis for common variants in terms of methodological developments and practical applications...
March 19, 2018: BMC Systems Biology
Sonda Guermazi-Toumi, Rakia Chouari, Abdelghani Sghir
Knowledge of archaeal population structure, function and interactions is of great interest for a deeper understanding of the anaerobic digestion step in wastewater treatment process, that represents a bottle neck in the optimization of digesters performance. Although culture-independent techniques have enabled the exploration of archaeal population in such systems, their population dynamics and interactions still require further investigation. In the present study, 2646 almost full archaeal 16S rRNA gene sequences retrieved from 22 anaerobic digesters located worldwide were analyzed and classified into 83 Operational Taxonomic Units (OTUs) for Euryarchaeotes and 2 OTUs for Crenarchaeotes...
March 21, 2018: Environmental Technology
Mostafa Mirzaei Aliabadi, Hamed Aghaei, Omid Kalatpour, Ali Reza Soltanian, Asghar Nikravesh
PURPOSE: The present study was aimed to analyze human and organizational factors involved in mining accidents and determine the relationships among these factors. MATERIALS AND METHODS: In this study, Human Factors Analysis and Classification System (HFACS) with Bayesian network (BN) were combined in order to analyze contributing factors in mining accidents. BN was constructed based on a hierarchal structure of HFACS. The required data were collected from a total of 295 cases of Iranian mining accidents and analyzed using HFACS...
March 21, 2018: International Journal of Occupational Safety and Ergonomics: JOSE
Zheyuan Wang, S Abdollah Mirbozorgi, Maysam Ghovanloo
A rodent behavior analysis system is presented, capable of automated tracking, pose estimation, and recognition of nine behaviors in freely moving animals. The system tracks three key points on the rodent body (nose, center of body, and base of tail) to estimate its pose and head rotation angle in real time. A support vector machine (SVM)-based model, including label optimization steps, is trained to classify on a frame-by-frame basis: resting, walking, bending, grooming, sniffing, rearing supported, rearing unsupported, micro-movements, and "other" behaviors...
March 21, 2018: Medical & Biological Engineering & Computing
Bin Sato, Mitsuro Kanda, Chie Tanaka, Daisuke Kobayashi, Naoki Iwata, Norifumi Hattori, Masaya Suenaga, Masamichi Hayashi, Suguru Yamada, Kenta Murotani, Michitaka Fujiwara, Yasuhiro Kodera
BACKGROUND: Surgical resection is the mainstay of treatment for patients with gastric cancer (GC). Development of a simple, high-performance, integrated scoring system is needed to provide appropriate management. This study aimed to evaluate predictive values of the systemic inflammation score (SIS) for short- and long-term outcomes of patients who underwent surgery for GC. METHODS: A total of 187 patients who underwent gastrectomy for pT2-4 GC without preoperative treatment were analyzed...
March 20, 2018: World Journal of Surgery
Giuseppe Cardellini, Tatiana Valada, Claire Cornillier, Estelle Vial, Marian Dragoi, Venceslas Goudiaby, Volker Mues, Bruno Lasserre, Arkadiusz Gruchala, Per Kristian Rørstad, Mathias Neumann, Miroslav Svoboda, Risto Sirgmets, Olli-Pekka Näsärö, Frits Mohren, Wouter M J Achten, Liesbet Vranken, Bart Muys
Life cycle assessment (LCA) has become a common methodology to analyze environmental impacts of forestry systems. Although LCA has been widely applied to forestry since the 90s, the LCAs are still often based on generic Life Cycle Inventory (LCI). With the purpose of improving LCA practices in the forestry sector, we developed a European Life Cycle Inventory of Forestry Operations (EFO-LCI) and analyzed the available information to check if within the European forestry sector national differences really exist...
March 20, 2018: Environmental Management
Daniele Marchioni, Stefano De Rossi, Davide Soloperto, Livio Presutti, Luca Sacchetto, Alessia Rubini
OBJECTIVE: To define a new surgical option, with lower morbidity, for the treatment of intralabyrinthine schwannomas. STUDY DESIGN: Retrospective case review. SETTING: Tertiary referral centers. PATIENTS: Eight patients affected by an intralabyrinthine schwannoma, with or without extension to the internal auditory canal, that underwent surgery with a transcanal transpromontorial approach, were included in the study. The average age at presentation was 47 years...
March 20, 2018: European Archives of Oto-rhino-laryngology
Chong Meng Lee, Malkit K Dhillon, Mohd Amin Sulaiman
Background: The use of navigation for total knee arthroplasty (TKA) improves limb alignment in the coronal and sagittal planes. However, similar improvements in femoral and tibial component rotation have not yet been realized using currently available systems. Methods: We developed a modified navigated TKA technique in which femoral rotation was set using the resected tibial plane as the reference with the aim of achieving a rectangular flexion gap. Limb alignment was assessed in a cohort of 30 knees using the navigation system...
March 2018: Arthroplasty Today
Jörn Grensemann
Routine use of cardiac output (CO) monitoring became available with the introduction of the pulmonary artery catheter into clinical practice. Since then, several systems have been developed that allow for a less-invasive CO monitoring. The so-called "non-calibrated pulse contour systems" (PCS) estimate CO based on pulse contour analysis of the arterial waveform, as determined by means of an arterial catheter without additional calibration. The transformation of the arterial waveform signal as a pressure measurement to a CO as a volume per time parameter requires a concise knowledge of the dynamic characteristics of the arterial vasculature...
2018: Frontiers in Medicine
Linda B Mongero, Eric A Tesdahl, Alfred H Stammers, Andrew J Stasko, Samuel Weinstein
Myocardial protection during cardiac surgery is a multifaceted process that is structured to limit injury and preserve function. Evolving techniques use solutions with varying constituents that enter the systemic circulation and alter intrinsic systemic concentrations. This study compared two distinct cardioplegia solutions on affecting intraoperative glucose levels. Data were abstracted from a multi-institutional perfusion registry, including a total of 1,188 propensity-matched cases performed from January through October 2016, at 17 cardiac surgical centers across the United States in which both del Nido and 4:1 cardioplegia were used during the study period...
March 2018: Journal of Extra-corporeal Technology
Cheng-Yu Long, Chiu-Lin Wang, Chin-Ru Ker, Yung-Shun Juan, Eing-Mei Tsai, Kun-Ling Lin
To assess whether our novel uterus-sparing procedure- laparoscopic organopexy with non-mesh genital(LONG) suspension is an effective, safe, and timesaving surgery for the treatment of apical prolapse. Forty consecutive women with main uterine prolapse stage II or greater defined by the POP quantification(POP-Q) staging system were referred for LONG procedures at our hospitals. Clinical evaluations before and 6 months after surgery included pelvic examination, urodynamic study, and a personal interview to evaluate urinary and sexual symptoms with overactive bladder symptom score(OABSS), the short forms of Urogenital Distress Inventory(UDI-6) and Incontinence Impact Questionnaire(IIQ-7), and the Female Sexual Function Index(FSFI)...
March 20, 2018: Scientific Reports
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