bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pattern of Emergent Head Computed Tomography Findings in a Tertiary Care Hospital during off Working Hours: Retrospective Analysis
Authors: Patel Rajneesh K. , Choubey Amit Kumar , Soni Brijesh K. , Sivasankar Rajeev , Chauhan Vikash 
Published: March 2019

ABSTRACT
Introduction: Emergency head computed tomography (CT) is rising exponentially during off working hours due to evidence-based medicine, patient’s expectation and desires, easy availability and apprehension of medico-legal cases, thereby raising health-care cost. There is huge gap in demand and supply of radiologist, especially during off working hours. There is need to know the pattern of emergency head findings. Materials and Methods: A retrospective analysis of all emergent noncontrast CT head during off working hours in the Department of Radiodiagnosis of a Tertiary Care Hospital, Mumbai, India, which were performed from June 2017 to May 2018. CT findings of 308 patients were analyzed. Results: About 63.6% of total head CT showed no significant abnormality. The most common abnormality was intracranial hemorrhage which was just 9.1% followed by acute infarct which was 6.2%. Extradural hemorrhage, subdural hemorrhage, and subarachnoid hemorrhage was only 1% each of total head CT findings. No significant abnormality was detected in 74.65%, 70.21%, 89.13%, 31.37%, 100%, and 69.09% in cases of head injury, seizure, giddiness/dizziness/syncope, cerebrovascular accident, transient ischemic attack, and altered sensorium, respectively. Conclusion: Pattern analysis of emergent head CT reveals that most of the emergent CT head shows no significant abnormality. There is a need for stringent guidelines for emergent head CT, training of emergency physician as well as CT technician for common findings to bridge the radiologist demand-supply gap for providing effective health care in peripheral hospitals.
О существовании линейной дифференциальной системы с заданными показателями Перрона
Authors: Gargyants Alexander 
Published: March 2019

Рассматриваются линейные дифференциальные системы с бесконечно дифференцируемыми, но, вообще говоря, неограниченными на полуоси коэффициентами.	Доказано, что отображение, сопоставляющее ненулевому решению такой системы значение показателя Перрона на нем, может оказаться произвольной непрерывной функцией, постоянной вдоль всякой проходящей через нуль прямой в пространстве решений.
Библиография: 7 наименований.
Reconstruction and actual trends of landslide activities in Bruust–Haltiwald, Horw, canton of Lucerne, Switzerland
Authors: Burkhalter Philippe , Egli Markus , Gärtner Holger 
Published: March 2019

Abstract. A spatiotemporal reconstruction of slope movements on the
edge of Lake Lucerne near the municipality of Horw, canton of Lucerne, is
presented. The reconstruction was realized by analyzing growth reactions of
beech (Fagus sylvatica L.) and fir (Abies alba Mill.) trees growing on this slope. Before
dendrochronological sampling, a detailed geomorphological mapping of the
landslide was conducted with the aim to determine the spatial extent of the
sliding area. For tree-ring analyses, 124 increment cores from 62 trees were
analyzed following standard techniques of dendrogeomorphology. In addition,
long micro-sections were prepared from the entire cores to extend the common
eccentricity analyses by microscopic determination of the onset of reaction
wood in fir and beech. Results clearly show that the area is moving at
least since 1948. A significant concentration of events was observed between
the years 1990 and 2000 as well as after 2006. The definition of a threshold
to define events using an eccentricity index alone is problematic and needs
to be adapted to specific site conditions. For this reason, we recommend always combining the application of an eccentricity index with a detailed
visual (anatomical) inspection to check for the occurrence of reaction wood.
The Ghassulian Ceramic Tradition: A SingleChaîne OpératoirePrevalent throughout the Southern Levant
Authors: Roux Valentine 
Published: March 2019

AbstractThis study examines Ghassulian ceramic assemblages from sites located in various parts of the southern Levant using the chaîne opératoire approach. The goal is to assess whether the Ghassulian communities were loosely integrated or, on the contrary, closely connected to each other. Results show that a single chaîne opératoire was shared at the level of the whole of the southern Levant testifying to its transmission within the same social group. They also suggest interactions between the different communities, arguing in favor of a dense social network from which new shared norms may have emerged. In conclusion, we suggest that this highly connected society could be linked phylogenetically to the previous local groups—which would explain both the embeddedness at the population level and the regional differences developed over time.
Magic Perfumes and Deadly Herbs: The Scent of Witches' Magic in Classical Literature
Authors: Ager Britta 
Published: March 2019

ABSTRACTThe magic of Greek and Roman witches is often described as fragrant, or even as being itself a kind of scent. Classical descriptions of witchcraft thus echo ancient fears of women's perfumes and scented cosmetics, which were conventionally thought of as altering the minds of men, who could be seduced by sweet scents into doing things they would not willingly choose to do. Witches' spells similarly charm and confuse their targets, acting as more aggressive supernatural versions of ordinary women's scents, even as witches themselves were increasingly described as old, repulsive, and foul-smelling. Meanwhile, male magicians are largely inodorate in the fantastic literature of antiquity. Clarifying the links between ancient discourse on perfumes, gender, and magic offers new ways to read Greco-Roman fantastic literature.
A Comparison of Patient-Centered Outcome Measures to Evaluate Dysphagia and Dysphonia After Anterior Cervical Discectomy and Fusion
Authors: Rosenthal Brett D. , McCarthy Michael H. , Bhatt Surabhi , Savage Jason W. , Singh Kern , Hsu Wellington K. , Patel Alpesh A. 
Published: March 2019

Summary of Background Data:
Dysphagia and dysphonia are the most common complications after anterior cervical diskectomy and fusion (ACDF). No consensus system exists currently in the spine literature for the classification of these conditions postoperatively.

Objective:
The purpose of this analysis was to evaluate the validity and reliability of the Eating Assessment Tool (EAT-10) in the assessment of dysphagia when compared with the Bazaz score. A secondary goal was to assess the Voice Handicap Index (VHI-10) scores among patients following ACDF.

Methods:
Patients treated with ACDF (one, two, or three level) for cervical radiculopathy and/or cervical myelopathy at two tertiary hospitals were administered patient-reported outcome metrics preoperatively as well as at multiple time points postoperatively. The metrics administered included the EAT-10, VHI-10, Bazaz, Neck Disbability Index, and EuroQol Five Dimensions questionnaire (EQ-5D)/visual analog scale.

Results:
One hundred patients were included in this study. Eighty-nine percentage had a 1-year follow-up, and 100% had a 12-week follow-up. Mean Neck Disbability Index, EQ-5D, and EQ-visual analog scale scores all improved from baseline at both 6 months and 1 year postoperatively. Both the EAT-10 and VHI-10 demonstrated excellent internal reliability (α = 0.95 and α = 0.90, respectively). Analysis of variance of EAT-10 and VHI-10 scores by time point demonstrated a statistically significant relationship (P < 0.0001). The EAT-10 and VHI-10 scores were statistically greater on postoperative day 1 than at all other times (Tukey posthoc, P < 0.0001 and P < 0.004, respectively). Across all time points, 176 instances of clinically significant dysphagia (EAT-10 ≥ 3) were noted, 57 (32%) of which were classified as “None” on the Bazaz classification.

Conclusions:
The EAT-10 score is an accurate measure for mild to severe dysphagia and better captured significant dysphagia that would have otherwise been missed when the Bazaz score is used. EAT-10 and VHI-10 are better measures of postoperative dysphagia and dysphonia than the current metrics used in spine surgery.

Study Design:
This was a prospective cohort study of consecutive patients.
Do More Expensive Total Knee Arthroplasty Prostheses Provide Greater Improvements in Outcomes Over Less Expensive Prostheses Sold by a Physician-owned Distributorship?
Authors: Baumgarten Keith M. , Chang Peter S. , Looby Peter A. , McKenzie Matthew J. , Rothrock Corey P. 
Published: March 2019

Background:
It is unknown whether more expensive total knee prostheses provide better improvements in patient-determined outcomes compared with less expensive prostheses. A physician-owned distributorship (POD) was created with a goal to provide lower cost implants to hospitals as an alternative to higher cost prostheses sold by the large orthopaedic implant companies. The hypothesis was that lower cost total knee prostheses would have equivalent outcomes, while resulting in lower costs to the hospitals purchasing them compared with higher cost industry-supplied knee prostheses.

Methods:
From May 2013 until January 2015, a POD existed which included five surgeons that performed total knee arthroplasties and were willing to follow the outcomes to ensure quality. The POD sold two knee arthroplasty systems at a cost that was lower than that of the large industry companies. Surgeons were allowed to use either POD knees or industry knees at their own discretion. Patients were followed up prospectively to determine The Knee Injury and Osteoarthritis Outcome Score (KOOS) outcomes at 2 years and any incidence of knee complications that required surgery.

Results:
Two hundred-nine knees (35.2%) had a POD knee implanted, and 385 knees had an industry knee implanted. Both POD knees and industry knees showed statistically significant improvements (P < 0.0001) for all subgroups of the KOOS. No statistically significant difference was observed in improvement in any subgroup of the KOOS between the groups. Knee complications requiring surgical intervention were similar (2.9% POD knees versus 3.6% industry knees; P = 0.58). Using lower cost POD knees saved $209,875.71.

Conclusions:
No difference was observed in improvements in outcomes or complications in the lower cost POD-supplied knees compared with the higher cost industry-supplied knees. Hospitals and surgeons may consider using lower cost prostheses because the increased cost of the prosthesis has not been correlated to improved outcomes.

Level of Evidence:
Level II therapeutic prospective cohort study
L’entreprise face aux cas extrêmes : approche événementielle ou processuelle de la crise ?
Authors: Serradj Toufik 
Published: March 2019

Les réflexions sur le caractère imprévisible de la crise, son impact sur l’entreprise et ses processus de gestion, et les actions spécifiques à entreprendre en milieu extrême ont permis de dégager deux écoles de la pensée : la première aborde la crise sous l’angle d’un événement imprévus déstabilisant et paralysant l’entreprise et la seconde aborde la crise sous l’angle d’un processus de l’entreprise. L’interrogation principale de cet article concerne l’identification des situations dans lesquelles la crise doit être abordée sous l’angle événementiel et celles où la crise doit être abordée sous un angle processuel. Chacune des deux approches de la crise a des particularités qui permettent d’éclairer les situations de crise.
Elucidating Structural Details of Ras-Effector Interactions
Authors: MURATCIOĞLU Serena , ACUNER ÖZBABACAN Saliha Ece 
Published: March 2019

Small membrane-associated Ras proteins mediate a wide range of cellular functions, such as cell proliferation, migration, survival, and differentiation; through binding and activating numerous effectors. Constitutively active mutant Ras proteins are detected in various types of human cancer and Ras community seeks approaches other than small-molecule Ras inhibitors; such as targeting the protein-protein interactions in the downstream Ras effector pathways and preventing its membrane localization. Although the most studied effectors of Ras, i.e. Raf, PI3K and RalGDS, bind Ras through the same site, they elicit opposing signaling pathways and thus, the temporal and spatial decision of the cell among them is critical. Elucidating the structural details of Ras/effector interactions can help us understand the cell decision and target the protein-protein interactions precisely. However, only a few crystal structures of Ras in complex with an effector are deposited in PDB. Here, the 3D structures of Ras/effector complexes were modeled with the PRISM algorithm and important binding sites as well as hot spot residues on Ras were identified. The effectors were also classified according to the binding regions on Ras, to determine the competitive pathways and the binding regions other than the “effector lobe”. The modeled complexes reveal important information about the interfaces between Ras and its partners with the potential of guiding drug design studies to block oncogenic Ras signaling.
Evaluation of Mango Peel Extracts on the in vitro Colletotrichum gloeosporioides Development
Authors: Silva Luana Sabrine , Mizobutsi Edson Hiydu , Mizobutsi Gisele Polete , De Oliveira Denilson Ferreira , Campos Viviane Aparecida Costa , Monção Flávio Pinto , Ribeiro Regina Cássia Ferreira , Saraiva Câmara Marcos Paz , Rodrigues Maria Luísa Mendes 
Published: March 2019

Aims: To evaluate the in vitro effect of mango peel extracts using different types of solvent and concentrations on the Colletotrichum gloeosporioides development.
Study Design: Activities were aimed at evaluating the in vitro antifungal potential of mango peel extracts.
Study Location and duration: The study was carried out at the Laboratory of Post-Harvest Pathology of Fruits and Vegetables - State University of Montes Claros and Laboratory of Natural Products, Department of Chemistry - Federal University of Lavras during October and December 2018.
Methodology: ‘Palmer’ mango peel (Mangifera indica) was submitted to drying in oven and grinding. Subsequently, extracts were obtained in Soxhlet system, using methanol, ethyl acetate and hexane as solvents. The three extracts were tested in vitro at concentrations of 0.0; 0.25; 0.5; 1.0 and 2.0 mg/mL by adding them in culture medium against C. gloeosporioides, which was isolated from mango fruits with anthracnose symptoms. The effect of extracts and their respective concentrations on the mycelial growth rate and conidia production and germination was evaluated. The design was completely randomized in a 3 x 5 factorial arrangement with 5 replicates.
Results: Increased extract concentrations caused reduction in the mycelial growth rate of the pathogen (R2 = 0.96). Both factors under study acted simultaneously in conidia production (P < 0.05), and the hexane extract presented better results for this analyzed variable. There was total germination inhibition (P < 0.05) when 1 mg/mL ethyl acetate extract and 2 mg/mL methanol and hexane extracts were used.
Conclusion: Methanol, hexane and ethyl acetate mango peel extracts had inhibitory effect on the in vitro C. gloeosporioides development.
Perceived Stress of Infertile Couples (Male, Female) and the Factors Affecting It
Authors: Mirzaei-Moghadam Sima , Zaheri Farzane , Hasheminasab Leila , Roshani Daem 
Published: March 2019

Background and Objectives: In addition to physical and mental problems caused by perception of being impotent, social reactions in the society, and the economic and emotional burden of medical costs, infertility causes emotions such as fear, depression, guilty conscience, denial and uncertainty about the future.
Methods: This cross-sectional study was conducted on 560 infertile couples referring to the Kurdistan Infertility Diagnosis and Therapeutic Center in 1397. Data were collected using a demographic checklist, Newton's Perceived Stress Questionnaire, and a Multidimensional Perceived Social Support Scale.
Results: The results showed that gender variables, infertility factor and social support had a significant impact on perceived stress in infertile couples (P <0.05). Additionally, if other variables persist, as social support increases, the perceived stress decreases in the infertile couples. For the infertility cause variable, the stress levels of those who were the infertile spouse were high and the stress of the group whose wife was the infertile spouse was low, and those who were still not certain about the cause of infertility had a lower level of stress.
Conclusion: According to the results of this study, the perceived stress level in infertile men is more than infertile women and the perceived stress level of respondents who were infertile themselves was more than other factors.
Synthesis of Phosphoryl Thioamides via Three‐Component Reaction of Phosphinic Chlorides with Amines and Sulfur
Authors: Kozlov Mikhail , Kozlov Andrey , Komkov Alexander , Lyssenko Konstantin , Zavarzin Igor , Volkova Yulia 
Published: March 2019

AbstractA straightforward, practical, and atom‐economical three‐component synthesis of phosphoryl thioamides from phosphinic chlorides, elemental sulfur, and aliphatic amines has been developed. The scope and limitations of this transformation have been investigated. This protocol is distinguished by metal‐ and organic solvent‐free conditions, and high tolerance to various functional groups; it can be adapted for scaled‐up synthesis.magnified image
Phenyliodonium Diacetate Mediated Carbotrifluoromethylation of Quinoxalin‐2(1H)‐ones
Authors: Xue Wenxuan , Su Yingpeng , Wang Ke‐Hu , Cao Lindan , Feng Yawei , Zhang Weigang , Huang Danfeng , Hu Yulai 
Published: March 2019

AbstractAn efficient method for the synthesis of 3‐trifluoromethylquinoxalin‐2(1H)‐ones by a direct trifluoromethylation of quinoxalin‐2(1H)‐one derivatives has been developed under transition‐metal‐free conditions. The strategy uses cheap and commercially available PhI(OAc)2 as a promoter, TMSCF3 as a trifluoromethylation reagent in the presence of catalytic amount of benzoquinone to give the products in good yields.
Controlled tracking in urban terrain: Closing the loop
Authors: Barbosa Patricia R. , Sarkale Yugandhar , Chong Edwin K. P. , Li Yun , Suvorova Sofia , Moran Bill 
Published: March 2019

AbstractWe investigate the challenging problem of integrating detection, signal processing, target tracking, and adaptive waveform scheduling with lookahead in urban terrain. We propose a closed‐loop active sensing system to address this problem by exploiting three distinct levels of diversity: (1) spatial diversity through the use of coordinated multistatic radars; (2) waveform diversity by adaptively scheduling the transmitted waveform; and (3) motion model diversity by using a bank of parallel filters matched to different motion models. Specifically, at every radar scan, the waveform that yields the minimum trace of the one‐step‐ahead error covariance matrix is transmitted; the received signal goes through a matched‐filter, and curve fitting is used to extract range and range‐rate measurements that feed the LMIPDA‐VSIMM algorithm for data association and filtering. Monte Carlo simulations demonstrate the effectiveness of the proposed system in an urban scenario contaminated by dense and uneven clutter, strong multipath, and limited line‐of‐sight.
Age‐related differences in delay discounting: Immediate reward, reward magnitude, and social influence
Authors: Bixter Michael T. , Rogers Wendy A. 
Published: March 2019

AbstractDelay discounting refers to the tendency of individuals to subjectively devalue rewards that are to be received in the future, with high rates of delay discounting being associated with a variety of maladaptive life outcomes (e.g., unhealthy dietary and exercise behaviors). The current study explored the psychological and social processes involved in adult age‐related differences in delay discounting of monetary rewards. Younger adults exhibited higher levels of delay discounting than older adults. This increased level of patience in older adults was found whether smaller‐sooner rewards were to be received immediately or in the future. However, there was an interaction with reward magnitude, whereby younger adults exhibited higher levels of delay discounting for smaller reward magnitudes but not larger reward magnitudes. Social influence on delay discounting was investigated by having participants complete three phases of the delay‐discounting task: an individual precollaboration phase, a collaboration phase in age‐group‐matched dyads, and an individual postcollaboration phase. A convergence effect was observed in that dyad members' postcollaboration choices were significantly more similar compared to their baseline choices during the precollaboration phase. Moreover, levels of convergence were comparable between younger and older adults, suggesting age invariance in social influence on delay discounting. The current results demonstrate a degree of malleability in delay discounting that extends into older adulthood, making interventions targeting the construct a promising avenue for future research.
Insight into Different Mechanisms for Oxidation of Liquid and Gaseous Pollutants by Bi−NaBiO3 with or without Visible Light Illumination
Authors: Gong Jianyu , Chen Ayan , Wang Yunyang 
Published: March 2019

AbstractIn this work, self‐assembled NaBiO3 (Bi−NaBiO3) was fabricated via a facile ion‐exchange method. The synthesized Bi−NaBiO3 could produce huge amount of reactive oxygen species (ROS) with or without light illumination due to different mechanisms. In photocatalytic condition (PC), 0.2 Bi−NaBiO3 performed excellent catalytic property and high stability on the oxidation of liquid 4‐chlorophenol (4‐CP) and gaseous toluene, because of photo‐generated hole‐electron produced from Bi−NaBiO3. In dark condition (Dark), the self‐generated oxygen vacancy should be responsible for the generation of ROS leading to the oxidation of 4‐CP. According to materials characterization and EPR testing, for 0.2 Bi−NaBiO3, 1O2, .O2−, or .OH were detected during PC condition but only 1O2 was found in Dark condition. This work provides a novel material to remediation of polluted wastewater or indoor air both in PC and Dark conditions.