bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reflectivity Parameter Extraction from RADAR Images Using Back Propagation Algorithm
Authors: Kumar P. Anil , Anuradha B. 
Published: January 2019

<p class="Abstract">Pattern recognition has been acknowledged as one of the promising research areas and it has drawn the awareness among many researchers since its existence at the beginning of the nineties. Multilayer Neural networks are used in pattern Recognition and classification based on the features derived from the input patterns. The Reflectivity information extracted from the Doppler Weather Radar (DWR) image helps in identifying the convective cloud type which has a strong relation to the precipitation rate. The reflectivity information is rooted in the DWR image with the help of colors and color bar is provided to distinguish among different reflectivity information. Artificial Neural network predicts the color based on the maximum likelihood estimation problem. This paper presents a best possible backpropagation algorithm for color identification in DWR images by comparing various backpropagation algorithms such as LevenbergMarquardt, Conjugate gradient, and Resilient back propagation etc.,. Pattern recognition using Neural networks presents better results compared to standard distance measures. It is observed that Levenberg-Marquardt backpropagation algorithm yields a regression value of 99% approximately and accuracy of 98%</p>
A Triple Band Bow Tie Array Antenna Using Both-sided MIC Technology
Authors: Alvina Akimun Jannat , Sabrin Samia , Reja Mohammad Istiaque , Akhtar Jobaida 
Published: January 2019

<span>A single-fed linearly polarized 2x2 microstrip bow tie array antenna is proposed. The feed network has microstrip line and slot line where microstrip-slot branch circuit is connected in parallel. The feed network of the array is designed using both-sided MIC Technology to overcome the impedance matching problem of conventional feed networks. The 2x2 half bow tie array antenna is also truncated with spur lines for optimization of antenna performance. The array antenna unit can be realized in very simple and compact structure, as all the antenna elements and the feeding circuit is arranged on a Teflon glass fiber substrate without requiring any external network. The design frequency of the proposed antenna is 5 to 8 GHz (CBand) and the obtained peak gain is 12.41 dBi. The resultant axial ratio indicates that linear polarization is achieved. </span>
User Selective Encryption Method for Securing MANETs
Authors: Ahmad Amal , Ismail Shereen 
Published: January 2019

<span>Security issue is getting important day by day. At present, there are a variety of methodologies to provide protection for data confidentiality. MANETs have lots of security challenges than traditional networks like infrastructureless and self-organizing requirements. As the MANETs are dynamic networks that’s make every transmission in such networks vulnerable to many attacks and improving security level becomes a main issue. This paper introduces a user selective encryption method by operating Data Encryption Standard (DES), Triple DES (3DES), Advanced Encryption Standard (AES) and the Diffie-Hellman Key Exchange (DHKE) protocol for key management in order to improve MANET security. Through the Network Simulator-2 (NS-2), the we investigate the performance of the proposed method in terms of data transfer time and network throughput for different data sizes and different sender-to-receiver number of hops. The results show the superiority of AES over other encryption algorithms. Furthermore, the effectiveness of our proposed method is verified through comparing our results with those obtained from previous studies.</span>
Speed control of universal motor
Authors: Imran Omar A. , Abed Wisam Najm al-din , Jbarah Ali N. 
Published: January 2019

Universal Motors (UM) are normally used for driving portable apparatus such as hand tool machines, vacuum cleaners and most domestic apparatus. The importance of UM is due to its own advantages such as high starting torque, very powerful in relation to its small size, having a variable speed; and lower cost. So, this paper focus on UM speed control under variable loading conditions. A mathematical model for UM is designed. Two controllers are proposed for controlling the motor speed, output rate controller and output reset controller. Ant Colony Optimization (ACO) is proposed for tuning the controller’s parameters due to its impact on solving different optimization problems. It possesses fast convergence, minimum algorithm parameters required, lower consecution time and give optimal results without needing large number of iterations. The results are compared and discussed accurately, which show the proposed tuning technique work well and give optimal results for both controllers.
Energy conservation project funding in commercial building: an expenditure or investment?
Authors: Ali Shaikh Shamser , Tyagi Ruchi , Chauhan Ragini 
Published: January 2019

<p>Energy conservation is an unnecessary expenditure and considered as a less important operational activity in many third world countries, particularly in India. The review of literature on the energy conservation project funding identifies that unclear management vision and policy for energy conservation is one of the reason for its back seat. Energy Conservation is supposed to be a top-down approach, in reality, a procurement manager is obliged to buy based on L1 policy (Lowest quoted price). Most of the Energy Conservation Measures (ECM) are not available at lowest quoted price. Therefore, Energy Conservation Measures (ECM) turn out to be a document formality rather than practice. The paper highlights the need for a paradigm shift on Energy conservation project from an expenditure to an investment. The Energy Conservation Project is an investment that will continue to give a return as long as the equipment is in operation or the facility is functional. This calls for amendments in Energy Policies and Project Guidelines for swift that there are no conflicts between the departments for implementing the energy conservation projects. </p>
Appropriate Switching State Selection to Avoid Sapacitor Imbalance in Five-Level NPC
Authors: Narasimha Raju Kuthuri , Obbu Chandra Sekhar , M Ramamoorthy 
Published: January 2019

<p>An intrinsic problem with neutral point clamped (NPC) multilevel inverters (MLI) is unbalance of capacitor voltage. There are many mitigation techniques well established in the literature to balance the neutral point voltage for 3-level inverter. These techniques employ either Carrier based pulse width modulation (CBPWM), Space vector pulse width modulation (SVPWM) or hybrid of both the PWM techniques. Balancing becomes complicated as the level of the inverter increases due to addition of capacitor junctions. The imbalance in capacitor voltages may cause uneven voltage distribution among switching devices and sometimes may cause failure. It also increases harmonic content in its output waveform. This paper develops new modulation scheme for balancing capacitor voltages for Five-level inverter .The scheme is a hybrid PWM which is a combination of both CBPWM and SVPWM techniques. As per this scheme CBPWM is applied to meet the load demand and at the zero crossings of the reference signal, CBPWM is blocked and for one carrier cycle. During this SVPWM is applied with appropriate switching state selection to neutralize the imbalance in capacitor voltage.</p>
His-Optimized Cardiac Resynchronization Therapy to Maximize Electrical Resynchronization
Authors: Vijayaraman Pugazhendhi , Herweg Bengt , Ellenbogen Kenneth A. , Gajek Jacek 
Published: January 2019

Background:
Cardiac resynchronization therapy (CRT) is an established therapy for patients with cardiomyopathy, left bundle branch block, and heart failure. His bundle pacing (HBP) may also improve clinical outcomes by narrowing QRS duration. The QRS narrowing by HBP may not always be optimal. The aim of the study was to determine if CRT could be optimized by sequential HBP followed by left ventricular (LV) pacing (His-Optimized CRT [HOT-CRT]) to maximize electrical resynchronization.

Methods:
We attempted permanent HBP in 27 patients (left bundle branch block 17, intraventricular conduction defect 5, and right ventricular pacing 5) referred for CRT in addition to LV lead. HBP was followed by LV pacing at a delay equal to His-ventricular interval. QRS duration at baseline, during HBP, biventricular pacing, and HOT-CRT was measured. Echocardiographic parameters and New York Heart Association functional class were assessed at baseline and during follow-up.

Results:

HOT-CRT was successful in 25 of 27 patients (age 72±15 years, men 23, ischemic 21). QRS duration at baseline was 183±27 ms and significantly narrowed to 162±17 ms with biventricular pacing (
P
=0.003), to 151±24 ms during HBP (
P
<0.0001), and further to 120±16 ms during HOT-CRT (
P
<0.0001). During a mean follow-up of 14±10 months, LV ejection fraction improved from 24±7% to 38±10% (
P
<0.0001), and New York Heart Association functional class changed from 3.3 to 2.04. Twenty-one of 25 patients (84%) were clinical responders while 23 of 25 (92%) showed echocardiographic response.

Conclusions:
In this feasibility cohort, HOT-CRT resulted in improved electrical resynchronization. HOT-CRT may improve clinical and echocardiographic outcomes in advanced heart failure patients requiring CRT.
Therianthropy: Wellbeing, Schizotypy, and Autism in Individuals Who Self-Identify as Non-Human
Authors: Clegg Helen , Collings Roz , Roxburgh Elizabeth C. 
Published: January 2019

AbstractTherianthropy is the belief that one is at least part non-human animal. This study aimed to address the dichotomization surrounding therianthropy in relation to mental health and wellbeing. One hundred and twelve therians and 265 non-therians completed Ryff’s Scales of Psychological Wellbeing, the O-LIFE questionnaire, and the Autism Spectrum Quotient. The results showed that therians scored lower on variables that are associated with positive social relationships. Such findings may be explained by cognitive factors and/or social factors that are associated with the stigmatization of cross-species identities. However, being a therian moderated the relationship between both autism and introverted anhedonia in relation to autonomy. Thus, a therian identity may act as a protective factor for those experiencing higher levels of autism and schizotypy.
Tests for Scale Parameter of Asymmetric Log Laplace Distribution
Authors: Khandeparkar Pradnya P. , Dixit V. U. 
Published: January 2019

This article focuses on tests for scale parameter of asymmetric log Laplace distribution when shape parameters are known. The most powerful test is obtained for scale parameter and is compared with the corresponding uniformly most powerful (UMP) test based on distribution of order statistic. A simple ad hoc test based on sample median is also suggested and is compared with the other two tests. AMS 2000 subject classification: 62F03
Food skills group value, meaning, and use with inpatients in a mental health setting
Authors: De Vos Gina , Leclair Leanne 
Published: January 2019

Introduction Occupational therapists use food skills groups to support mental health recovery and engagement in meaningful occupation. Research examining participants’ experiences in these mental health groups is sparse. Method Researchers used a convergent parallel mixed methods design. Following participation in an inpatient food skills group, 60 participants completed a questionnaire, and 20 also participated in a semi-structured interview. The questionnaire data was analysed using descriptive and correlational statistics. The interview data was analysed using thematic analysis. Triangulation was used to combine and interpret findings from the different methods to gain a more complete understanding of the participants’ experiences. Findings Participants strongly agreed/agreed that they enjoyed participating, felt having the opportunity to participate was important to their recovery, and after discharge would use the skills they had learnt. Age, sex, and level of education were associated with some of the questionnaire responses. Three main themes emerged from the interview data: importance of engaging/doing, connections with food, and being involved in a group process. Conclusion Individuals who participated in the food skills group valued having the opportunity to build skills and engage in meaningful activities with others while in hospital. They identified the food skills group as important to their recovery.
Epidural Pethidine or Fentanyl during Caesarean Section: A Double-Blind Comparison
Authors: Paech M. J. 
Published: January 2019

The onset, quality and duration of analgesia and side-effects of a single bolus dose of either epidural pethidine 50 mg or fentanyl 100 mcg, administered immediately post-delivery, were compared in a randomised, double-blind study of fifty-five women undergoing epidural caesarean section. The onset of effect was more rapid with fentanyl, a significantly larger number of women achieving complete pain relief fifteen minutes post-administration (P<0.05). The quality of analgesia was good in both groups and the quality and duration of effective analgesia not significantly different. The incidence and severity of side-effects were low, with no significant difference between groups. One patient in the pethidine group experienced early onset respiratory depression; however, she did not require active treatment. Epidural fentanyl 100 mcg appears to offer a small clinical advantage over pethidine 50 mg for intraoperative use during caesarean section.
Mortality and Prognostic Prediction in Very Elderly Patients With Severe Pneumonia
Authors: Baek Moon Seong , Park Sojung , Choi Jeong-Hee , Kim Cheol-Hong , Hyun In Gyu 
Published: January 2019

Introduction: Although prognostic prediction scores for pneumonia such as CURB-65 score or pneumonia severity index (PSI) are widely used, there were a few studies in very elderly patients. The aim of the study was to validate prognostic prediction scores for severe pneumonia and investigate risk factors associated with in-hospital mortality of severe pneumonia in very elderly patients. Methods: During the 6-year study period (from October 2012 to May 2018), 160 patients aged 80 or older admitted to medical intensive unit were analyzed retrospectively. Pneumonia severity was evaluated using CURB-65 score, PSI, Sequential Organ Failure Assessment (SOFA) scores, A-DROP, I-ROAD, UBMo index, SOAR score, and lactate. The outcome was in-hospital mortality. Results: The median age was 85 years (interquartile range: 82-88). Nursing home residents accounted for 71 (44.4%) and in-hospital mortality was 40 (25.0%). Logistic regression showed that chronic lung, mechanical ventilation, hemodialysis, and albumin were associated with in-hospital mortality of pneumonia. Using the receiver operating characteristics curve for predicting mortality, the area under the curve in pneumonia was 0.65 for the SOFA score, 0.61 for the CURB-65 score, 0.52 for the PSI, 0.58 for the A-DROP, 0.52 for the I-ROAD, 0.54 for UBMo index, 0.59 for SOAR score, and 0.65 for lactate. Conclusion: The performances of the CURB-65 and PSI are not excellent in very elderly patients with pneumonia. Further studies are needed to improve the performance of prognostic prediction scores in elderly patients.
Is multiple viral infection a predictor of severity in children with acute bronchiolitis?
Authors: Yurtseven Ali , Turan Caner , Elibol Pelin , Çiçek Candan , Saz Eylem Ulas 
Published: January 2019

Background: Acute bronchiolitis is a common cause of pediatric emergency department admissions in children younger than 2. Objectives: The study aimed to compare the outcomes and the severity of bronchiolitis in young children with multiple simultaneous respiratory virus infections to those with single virus infection and no virus identified group. Methods: Patients with moderate and severe bronchiolitis who visited our emergency department between November 2016 and May 2017 had nasopharyngeal swab samples results tested by multiplex polymerase chain reaction were included in the study. Patients’ characteristics, clinical severity of illness, and outcome (pediatric emergency department discharge, admission to ward or pediatric intensive care unit) were compared with the detected viral agents. Results: A total of 241 patients were included in the study. The mean age was 7.8 ± 2.6 months and 147 (61%) were male. Respiratory syncytial virus was the most common detected viral agent in 108 (39%) cases followed by human rhinoviruses in 67 (24%). Respiratory syncytial virus was found more frequently in February and March (p = 0.002). Leukocytosis and pneumonia were more likely observed in patients with only human rhinoviruses (+) subjects (p = 0.010 and p = 0.015, respectively). Intensive care hospitalization rate (16%) was higher in patients with multiple viral agents (p = 0.004). Conclusions: Respiratory syncytial virus remains the most common detected viral agent in acute bronchiolitis patients. While the pathogens detected were seasonally different, there was a significant relationship between leukocytosis, bacterial pneumonia, and detected viral agents. The disease was more severe in patients with multiple viral agents.
How recommender systems could support and enhance computer-tailored digital health programs: A scoping review
Authors: Cheung Kei Long , Durusu Dilara , Sui Xincheng , de Vries Hein 
Published: January 2019

Objective Tailored digital health programs can promote positive health-related lifestyle changes and have been shown to be (cost) effective in trials. However, such programs are used suboptimally. New approaches are needed to optimise the use of these programs. This paper illustrates the potential of recommender systems to support and enhance computer-tailored digital health interventions. The aim is threefold, to explore: (1) how recommender systems provide health recommendations, (2) to what extent recommender systems incorporate theoretical models and (3) how the use of recommender systems may enhance the usage of computer-tailored interventions. Methods A scoping review was conducted, using MEDLINE and ScienceDirect, to identify health recommender systems reported in studies between January 2007 and December 2017. Information was subsequently extracted to understand the potential benefits of recommender systems for computer-tailored digital health programs. Titles and abstracts of 1184 studies were screened for the full-text screening, in which two reviewers independently selected articles and systematically extracted data using a predefined extraction form. Results A total of 26 articles were included for data extraction. General characteristics were reported, with eight studies reporting hybrid filtering. A description of how each recommender system provides a recommendation is described; the majority of recommender systems used messages as recommendation. We identified the potential effects of recommender systems on efficiency, effectiveness, trustworthiness and enjoyment of the digital health program. Conclusions Incorporating a collaborative method with demographic filtering as a second step to knowledge-based filtering could potentially add value to traditional tailoring with regard to enhancing the user experience. This study illustrates how recommender systems, especially hybrid programs, may have the potential to bring tailored digital health forward.
Problematizing Boundaries of Care Responsibility in Caring Relationships
Authors: Kristoffersen Margareth 
Published: January 2019

Introduction Nursing care takes place within nurse–patient relationships that can be demanding. In exceptional circumstances, the relationship may be destructive, and when this happens, significant onerous demands, appeals, or challenges can arise from patients and be placed upon nurses. Aim The aim is to explore what can be termed boundaries of care responsibility when relationships with patients place significant destructive demands on nurses. Method Based on a hermeneutical approach, this study introduces aspects of phenomenological philosophy as described by the Danish theologian and philosopher Knud E. Løgstrup and provides examples of nurses’ experiences in everyday nursing practice drawn from a Norwegian empirical study focusing on remaining in everyday nursing practice. Data in that original study consisted of qualitative interviews and qualitative follow-up interviews with 13 nurses working in somatic and psychiatric health service. Discussion The exploration of empirical examples demonstrates that nurses consider confronting demands from patients which manifest themselves as onerous and that they have to set limits to safeguard themselves. When the nurses had to manage acting out or actions from patients by opposing what was said and done, they experienced the situation as more than very unpleasant or connected to a perversion. Significant destructive caring relationships cannot be without boundaries, and explicating boundaries are of relevance to protect nurses from onerous demands. Protecting them implies reducing a hazard, that is, that nurses carry on even when this may be unhealthy for them. Conclusion Consistently pinpointing boundaries between demands is assumed to be essential in caring relationships, as onerous or destructive demands are strongly connected to a content where boundlessness is involved. To protect both nurses and patients as valued human beings, thus raising and preserving the status of the nurse and the patient, the nature and possible detrimental effects of destructive caring relationships should be considered and examined.
The impact of selective serotonin reuptake inhibitors on the risk of intracranial haemorrhage: A systematic review and meta-analysis
Authors: Jensen Melanie P , Ziff Oliver J , Banerjee Gargi , Ambler Gareth , Werring David J 
Published: January 2019

Introduction Observational studies have suggested increased risk of intracranial haemorrhage (ICrH) in patients receiving selective serotonin reuptake inhibitors (SSRIs). We sought to clarify the impact of SSRIs on ICrH, accounting for study methodology. Patients and methods A comprehensive search of Medline, Embase and the Cochrane Library from 1960 to December 2017 identified studies comparing SSRIs with control. The outcomes (first-ever and recurrent ICrH) were meta-analysed using a random effects model. Results Twenty-four observational studies and three randomised trials were available for meta-analysis, totalling 4,844,090 patient-years of follow-up. Those receiving SSRIs were more likely to be female ( p = 0.01) and have depression ( p < 0.001). Compared to controls, SSRI users had a significantly increased risk of ICrH (relative risk (RR) 1.26, 95%CI 1.11–1.42). Although SSRI use was associated with increased ICrH risk in those without previous ICrH (RR 1.31, 95%CI 1.15–1.48), this was not the case in those with previous ICrH (RR 0.95, 95%CI 0.83–1.09). Sensitivity analysis according to the bleeding definition reported demonstrated that although ‘haemorrhagic stroke’ was associated with SSRIs (RR 1.40, 95%CI 1.13–1.72), intracerebral haemorrhage was not (RR 1.11, 95%CI 0.86–1.42). Additional sensitivity analyses demonstrated a stronger association between SSRIs and ICrH in studies with a high ( p < 0.001) compared to low risk of bias ( p = 0.09) and with retrospective ( p < 0.001) compared to prospective (p=0.31) study designs. Discussion Although SSRIs are associated with an increased risk of ICrH, the association is partly accounted for by important biases and other methodological limitations in the available observational data. Conclusion Our findings suggest there is insufficient high-quality data to advise restriction of SSRIs because of concern regarding ICrH risk.