bluuebunny/crossref_metadata_2025 huggingface dataset:
Feasibility of Advance Care Planning in Primary Care for Homeless Adults
Authors: Kaplan-Weisman Laura , Sansone Sara , Walter Eve , Crump Casey
Published: July 2019

Objectives: As the homeless population ages, it is imperative to improve access to advance care planning (ACP) and document preferences in case medical decision-making capacity is lost. Methods: We implemented an ACP Project to discuss and document advance care plans with all patients aged 45 and older who received primary care at our adult Homeless Program clinics. Results: Over 14 months, ACP was discussed with 48% ( n = 138) of the population and health care proxy (HCP) appointment with 91% ( n = 125) of these patients. Most (62%; n = 77) appointed a HCP from personal relationships, though a significant minority (38%; n = 48) could not and were considered “surrogateless.” End-of-life preferences varied. Approximately 20% of patients wanted to defer to a surrogate for each decision. Discussion: ACP is feasible in primary care for adults who have experienced homelessness and should be incorporated into routine care.
Comparative study of motor speed synchronization control for an integrated motor–transmission powertrain system
Authors: Huang Jianfeng , Zhang Jianlong , Yin Chengliang
Published: July 2019

This paper compares several kinds of methods for motor speed synchronization control, which plays an important role in gear shifting of emerging clutchless automated manual transmissions for battery electric vehicles and other powertrain systems for hybrid electric vehicles. Specifically, four controllers, namely, proportional-integral control, disturbance observer–based proportional control, integral sliding mode–based proportional control, and disturbance observer–based act-and-wait control, are compared in transient responses regarding settling time, overshoot, and steady-state error. Each is formulated by combining one nominal controller for speed tracking and another for disturbance compensation. For disturbance observer–based proportional control, model-based determination of the feedback gain and disturbance observer gain is discussed. Simulations and experiments are carried out to study effects of different controller parameter settings and evaluate performances of different methods under different operation conditions with disturbances and uncertainties like plant parameter drift, communication time delay, unknown load torques, and so on. Based on the results, it is advised that disturbance observer–based proportional control with the reference signal set as the nominal speed trajectory be used in practice, since it comes with merits of few controller parameters to be determined as well as robust, consistent, and satisfactory performances.
Women neuropsychiatrists on Wagner-Jauregg’s staff in Vienna at the time of the Nobel award: ordeal and fortitude
Authors: Triarhou Lazaros C
Published: July 2019

This article profiles the scientific lives of six women physicians on the staff of the Clinic of Neurology and Psychiatry at the University of Vienna in 1927, the year when its Director, Julius Wagner-Jauregg, was awarded the Nobel Prize in Physiology or Medicine. They were all of Jewish descent and had to leave Austria in the 1930s to escape from the National Socialist regime. With a solid background in brain science and mental disorders, Alexandra Adler, Edith Klemperer, Annie Reich, Lydia Sicher and Edith Vincze pursued academic careers in the USA, while Fanny Halpern spent 18 years in Shanghai, where she laid the foundations of modern Chinese psychiatry, before going to Canada. At the dawn of their medical careers, they were among the first women to practise neurology and psychiatry, both in Austria and overseas.
Lupus: the new epidemic
Authors: Ugarte-Gil M F , González L A , Alarcón G S
Published: July 2019

Is systemic lupus erythematosus (SLE) is occurring more frequently now than in decades past? Despite improvements in the identification of patients with SLE, the development of new classification criteria, and the recognition of several biomarkers used alone or in combination, the diagnosis of SLE is still a challenge for clinicians, in particular early in the course of the disease, which makes the recognition of secular trends difficult to ascertain. Lacking a uniform definition of preclinical lupus or incomplete lupus, it is difficult to predict accurately which patients would go on to develop SLE. We will briefly review the classification criteria, early or preclinical SLE, the epidemiology of SLE, antinuclear antibodies-negative SLE, and biomarkers of the disease.
Actively lubricated hybrid journal bearings based on magnetic fluids for high-precision spindles of machine tools
Authors: Urreta Harkaitz , Aguirre Gorka , Kuzhir Pavel , Lopez de Lacalle Luis Norberto
Published: July 2019

The research work reported in this article is focused on the use of magnetic fluids as active lubricant for improving the performance of hybrid journal bearings, with application to high-precision machine tools. Prototype design was optimized following numerical computation of Reynolds equation and computational fluid dynamics calculations, in both cases with Herschel–Bulkley model for the magnetorheological fluid. This fluid (LORD Corp. MRF 122-2ED) was experimentally characterized in detail. The improvement of the hydrodynamic effect in journal bearings was demonstrated with 50% higher load capacity and stiffness, mainly at half of shaft eccentricity 0.4 <  ε < 0.7. Active hydrostatic lubrication achieved quasi-infinite stiffness within working limits (load and speed), at low frequencies. For high dynamic response, the active lubrication based on magnetorheological valves did not show good response. The feasibility of using magnetic fluids for developing high performance machine tool spindles and the validity of the simulation models was demonstrated experimentally.
Health Promotion Practices in Nursing for Elderly Persons in Municipal Home Care: An Integrative Literature Review
Authors: Karlsson Sofie , Ridbäck Ann , Brobeck Elisabeth , Norell Pejner Margaretha
Published: July 2019

Elderly patients sometimes seek emergency services unnecessarily. Emergency clinics can be detrimental to the elderly. The purpose of this study was to find health promotion practices that enable a registered nurse in community health to reduce the need for home care clients to seek emergency care. The method of integrative literature review was used. Through health promotion work in the home, the registered nurses in community health (in conjunction with other professionals) can strengthen patients’ self-esteem and reduce their emergency care visits. Patient involvement is part of this work, and the registered nurses in community health needs to get to know patients to learn their health needs, design individual care plans, and find out whether they need education about their own health and/or health care services available to them. Registered nurses in community health experience difficulties in performing health promotion because they perceive that other tasks have higher priority.
Simulation of thermal reaction mechanism between energetic components of hydroxyl-terminated polybutadiene propellant based on quantum chemical calculation
Authors: Weijia Huang , Chen Minghua , An Zhentao , Zhang Li , Jiang Zhibao
Published: July 2019

In this article, hybrid functional B3LYP method is used to construct the reactant structure of energetic components in propellant at the bhandhlyp/6-31g(d) level, and to calculate the closed-shell layer of the system. At the bhandhlyp/6-31g(d) level, the energy difference (activation energy) between the transition state and the reactant was calculated and the reaction mechanism between energetic components was analyzed. It is found that the O30 atom of RDX first breaks off from the nitro group and is easier to break away from RDX and interact with the vertex atom Al1 of the Al13 cluster. With the further separation of O30, it also acts with Al11 until it completely breaks away from N26 atom. The activation energy of this reaction is 56.448 × 103 J mol−1. The oxygen dioxide atom in ammonium perchlorate is more likely to interact with the Al11 atom of the Al13 cluster. With the reaction proceeding, the O22 atom will not completely separate from the Cl19 atom. The activation energy of the reaction is 27.830 × 103 J mol−1.
Force and Inertia: A Systematic Review of Women’s Leadership in Male-Dominated Organizational Cultures in the United States
Authors: Campuzano Mariela V.
Published: July 2019

The ascension of women into top leadership roles in male-dominated industries and organizations in the United States remains significantly low despite inroads women have made over the past two decades. The scarcity of women in leadership has been attributed to gendered traits and socialized beliefs that inform organizational cultures. However, research suggests that leaders can also influence organizational culture because they model the primary principles undergirding workplace cultures. This systematic review sought to understand how women’s leadership has been described in influencing male-dominated organizational cultures. Three major themes were identified to answer the research question—Strategic Femininity, Shared Power, and Change Agents. Using the analogy of inertia and force, a discussion of the findings and implications for human resource development (HRD) research and practice are presented.
Recalculation of the basic static load of ball screws
Authors: Zhou Huaxi , Zhou Changguang , Ou Yi , Chen Zeng-Tao
Published: July 2019

Based on the correction factor of accuracy applied in ISO standard 3408-4:2006, this article proposed a modified method to calculate the effective ball number and basic static load rating of ball screws. Meanwhile, the basic static load rating of ball screws was obtained through a new measurement method presented in this article. The experimental results, agreeing well with the theoretical values calculated by the modified method, showed that there is a large discrepancy between the basic static load rating calculated by the traditional method and the measured result, which proves that the new modified method is valid. This study provides a more accurate method to obtain the basic static load of ball screws, which is significant for predicting the performance and service life of ball screws.
On the design of a human–robot interaction strategy for commercial vehicle driving based on human cognitive parameters
Authors: Vasconez Juan Pablo , Carvajal Diego , Cheein Fernando Auat
Published: July 2019

A proper design of human–robot interaction strategies based on human cognitive factors can help to compensate human limitations for safety purposes. This work is focused on the development of a human–robot interaction system for commercial vehicle (Renault Twizy) driving, that uses driver cognitive parameters to improve driver’s safety during day and night tasks. To achieve this, eye blink behavior measurements are detected using a convolutional neural network, which is capable of operating under variable illumination conditions using an infrared camera. Percentage of eye closure measure values along with blink frequency are used to infer diver’s sleepiness level. The use of such algorithm is validated with experimental tests for subjects under different sleep-quality conditions. Additional cognitive parameters are also analyzed for the human–robot interaction system such as driver sleep quality, distraction level, stress level, and the effects related to not wearing glasses. Based on such driver cognitive state parameters, a human–robot interaction strategy is proposed to limit the speed of a Renault Twizy vehicle by intervening its acceleration and braking system. The proposed human–robot interaction strategy can increase safety during driving tasks for both users and pedestrians.
Anti-Melanogenic Effects of Bergamottin via Mitogen-Activated Protein Kinases and Protein Kinase B Signaling Pathways
Authors: Chung You Chul , Kim Yun Beom , Kim Bong Seok , Hyun Chang-Gu
Published: July 2019

In this study, we examined the inhibitory effects of bergamottin on melanogenesis in B16F10 murine melanoma cells, together with its effects on the mechanism of melanin synthesis. α-Melanocyte stimulating hormone-stimulated B16F10 cells were treated with various concentrations of bergamottin, with arbutin as a positive control. Bergamottin significantly decreased the melanin content and tyrosinase activity without showing any cytotoxicity. In addition, bergamottin treatment significantly downregulated the expression of tyrosinase-related protein-1,2 and tyrosinase by suppressing the expression of microphthalmia-associated transcription factor. The phosphorylation status of mitogen-activated protein kinases (MAPKs) and protein kinase B (AKT) was examined to determine the mechanism underlying the antimelanogenic effects of bergamottin. Bergamottin treatment increased the phosphorylation of extracellular signal-regulated kinase (ERK) and AKT, but decreased the phosphorylation of p38 and c-Jun N-terminal kinase in the B16F10 cells. Moreover, the use of PD98059 (ERK inhibitor) and LY294002 (AKT inhibitor) corroborated these findings, indicating that bergamottin inhibits melanogenesis via the MAPKase and AKT signaling pathway. Thus, bergamottin has potential for treating hyperpigmentation disorders and can be a promising chemical for skin-whitening in the cosmetic industry.
Antithrombotic and Antiplatelet Activities of New Isohopane Triterpene From the Roots of Rubia akane
Authors: Park InWha , Lee Wonhwa , Kim Hyelim , Quan Khong Trong , Kim DaYoung , Bae Jong-Sup , Na MinKyun
Published: July 2019

A new isohopane triterpenoid (1) and two known triterpenoids (2-3) were isolated from the roots of Rubia akane (Rubiaceae). The molecular formula C30H46O4 of 1 was determined by HRESIMS. Detailed NMR spectroscopic data analysis suggested that compound 1 is a new isohopane triterpenoid with a ketone moiety at C-16. Based on the key NOE correlations of H-3/H-5 and H-21/H3-28, compound 1 was determined as 3β-hydroxy-16-oxo-21β-isohop-22(29)-en-24-oic acid. The anticoagulant activities of new isohopane 1 were evaluated by monitoring activated partial thromboplastin time (aPTT), prothrombin time (PT), and the activities of thrombin (Factor IIa, FIIa) and activated factor X (FXa). The effects of 1 on expression of plasminogen activator inhibitor type 1 (PAI-1) and tissue-type plasminogen activator (t-PA) were evaluated in tumor necrosis factor-α activated human umbilical vein endothelial cells. Treatment with 1 (200 μM) resulted in the prolongation of aPTT and PT and the inhibition of relative thrombin (28%) and FXa (29%) activities. In addition, 1 inhibited thrombin-catalyzed fibrin polymerization (18% inhibition at 100 μM) and platelet aggregation (21.8% inhibition at 100 μM). Compound 1 also elicited anticoagulant effects in mice in a dose-dependent manner ranging from 18.8 to 94.0 μg/mouse. In addition, treatment with 1 resulted in significant reduction of the PAI-1 to t-PA ratio (25% decreased). Collectively, the new isohopane triterpenoid 1 possesses antithrombotic activities and offers a basis for the development of a new anticoagulant agent.
Semantic Associations Dominate Over Perceptual Associations in Vowel–Size Iconicity
Authors: Hoshi Hideyuki , Kwon Nahyun , Akita Kimi , Auracher Jan
Published: July 2019

We tested the influence of perceptual features on semantic associations between the acoustic characteristics of vowels and the notion of size. To this end, we designed an experiment in which we manipulated size on two dissociable levels: the physical size of the pictures presented during the experiment (perceptual level) and the implied size of the objects depicted in the pictures (semantic level). Participants performed an Implicit Association Test in which the pictures of small objects were larger than those of large objects – that is, the actual size ratio on the semantic level was inverted on the perceptual level. Our results suggest that participants matched visual and acoustic stimuli in accordance with the content of the pictures (i.e., the inferred size of the depicted object), whereas directly perceivable features (i.e., the physical size of the picture) had only a marginal influence on participants’ performance. Moreover, as the experiment has been conducted at two different sites (Japan and Germany), the results also suggest that the participants’ cultural background or mother tongue had only a negligible influence on the effect. Our results, therefore, support the assumption that associations across sensory modalities can be motivated by the semantic interpretation of presemantic stimuli.
Pharmacist-assisted electronic prescribing at the time of admission to an inpatient orthopaedic unit and its impact on medication errors: a pre- and postintervention study
Authors: Tran Tim , Taylor Simone E. , Hardidge Andrew , Mitri Elise , Aminian Parnaz , George Johnson , Elliott Rohan A.
Published: July 2019

Background:

Prescribing and administration errors related to pre-admission medications are common amongst orthopaedic inpatients. Postprescribing medication reconciliation by clinical pharmacists after hospital admission prevents some but not all errors from reaching the patient. Involving pharmacists at the prescribing stage may more effectively prevent errors. The aim of the study was to evaluate the effect of pharmacist-assisted electronic prescribing at the time of hospital admission on medication errors in orthopaedic inpatients.

Methods:

A pre- and postintervention study was conducted in the orthopaedic unit of a major metropolitan Australian hospital. During the 10-week intervention phase, a project pharmacist used electronic prescribing to assist with prescribing admission medications and postoperative venous thromboembolism (VTE) prophylaxis, in consultation with orthopaedic medical officers. The primary endpoint was the number of medication errors per patient within 72 h of admission. Secondary endpoints included the number and consequence of adverse events (AEs) associated with admission medication errors and the time delay in administering VTE prophylaxis after elective surgery (number of hours after recommended postoperative dose-time).

Results:

A total of 198 and 210 patients, pre- and postintervention, were evaluated, respectively. The median number of admission medication errors per patient declined from six pre-intervention to one postintervention ( p < 0.01). A total of 17 AEs were related to admission medication errors during the pre-intervention period compared with 1 postintervention. There were 54 and 63 elective surgery patients pre- and postintervention, respectively. The median delay in administering VTE prophylaxis for these patients declined from 9 h pre-intervention to 2 h postintervention ( p < 0.01).

Conclusions:

Pharmacist-assisted electronic prescribing reduced the number of admission medication errors and associated AEs.
Evaluation and comparison of six noninvasive tests for prediction of significant or advanced fibrosis in nonalcoholic fatty liver disease
Authors: Staufer Katharina , Halilbasic Emina , Spindelboeck Walter , Eilenberg Magdalena , Prager Gerhard , Stadlbauer Vanessa , Posch Andreas , Munda Petra , Marculescu Rodrig , Obermayer-Pietsch Barbara , Stift Judith , Lackner Carolin , Trauner Michael , Stauber Rudolf E
Published: July 2019

Background

In nonalcoholic fatty liver disease (NAFLD), advanced fibrosis has been identified as an important prognostic factor with increased liver‐related mortality and treatment need. Due to the high prevalence of NAFLD, noninvasive risk stratification is needed to select patients for liver biopsy and treatment.

Objective

To compare the diagnostic accuracy of several widely available noninvasive tests for assessment of fibrosis among patients with NAFLD with or without nonalcoholic steatohepatitis (NASH).

Methods

We enrolled consecutive patients with NAFLD admitted to two Austrian referral centers who underwent liver biopsy. Liver stiffness measurement (LSM) was obtained by vibration‐controlled transient elastography (VCTE, FibroScan) and blood samples were collected for determination of enhanced liver fibrosis (ELF) test, FibroMeterV2G, FibroMeterV3G, NAFLD fibrosis score (NFS), and fibrosis‐4 index (FIB‐4).

Results

Our study cohort contained 186 patients with histologically confirmed NAFLD. On liver histology, NASH was present in 92 patients (50%), significant fibrosis (F ≥ 2) in 71 patients (38%), advanced fibrosis (F ≥ 3) in 49 patients (26%), and F ≥ 3 plus NASH in 35 patients (19%). For diagnosis of F ≥ 2, F ≥ 3, and F ≥ 3 plus NASH, respectively, receiver operating characteristic (ROC) analysis revealed superior diagnostic accuracy of ELF score (area under ROC curve (AUROC) 0.85, 0.90, 0.90), FibroMeterV2G (AUROC 0.86, 0.88, 0.89), FibroMeterV3G (AUROC 0.84, 0.88, 0.88), and LSM per protocol (AUROC 0.87, 0.95, 0.91) versus FIB‐4 (AUROC 0.80, 0.82, 0.81) or NFS (AUROC 0.78, 0.80, 0.79).

Conclusion

Proprietary fibrosis panels and VCTE show superior diagnostic accuracy for noninvasive diagnosis of fibrosis stage in NAFLD as compared to FIB‐4 and NFS.
Questioning the Ideal of the Public Sphere: The Emotional Turn
Authors: Wahl-Jorgensen Karin
Published: July 2019

This article discusses the usefulness and limitations of Habermas concept of the public sphere, on the basis of the trajectory of the author’s work. It starts from the observation that the concept has generated a rich scholarly debate on tensions between the normative ideals and the nitty-gritty lived experience of mediated publics. While fundamental norms of interaction associated with the ideal of the public sphere remain essential to the creation of meaningful debate, it also relies on a series of unhelpful binary distinctions that may be neither normatively desirable nor attainable. Key assumptions of the public sphere model include the idea that public debate should be rational, impartial, dispassionate, and objective. This, in turn, implies the undesirability of emotionality, partiality, passion, and subjectivity. In recent years, particularly in response to the rise of digital and social media, scholars have begun to question the rigid delineation of such norms. The article draws on the author’s work to illuminate how an “emotional turn” in media studies has opened up for a more nuanced appraisal of the role of subjectivity and personal stories in the articulation of the common good, challenging Habermasian understandings of rational-critical debate. This “emotional turn” constitutes an essential resource for theorizing public debate as it unfolds within a hybrid media system, for better and for worse. The article shows how the “emotional turn” has shaped the author’s work on mediated public debate, ranging from letters to the editor and user-generated content to Twitter hashtags and the “emotional architecture” of Facebook.
Bad Guys and Bag Ladies: On the Politics of Polemics and the Promise of Ambivalence
Authors: Bucher Taina
Published: July 2019

The call for papers suggests a certain “loss of innocence” with regard to how media scholars view the nature of digital technologies and their potential role in societies today. As the editors write, “Just a few years ago, many scholars celebrated digital technology for its potential to flatten hierarchies and strengthen civic life. Today, many of the same observers are writing about the darker sides of digital culture.” While this may be true, given the ways in which digital technologies are pervasively used for surveillance, misinformation and so forth, there is also something to be said about the politics of polemics, of pitching a celebratory account of technology against a supposedly more “critical” one. What I want to do is to take the opportunity offered by this inaugural issue of 2K to reflect on polemics and neatly dressed straw men as rhetorical strategies used in scholarly argumentation. My goal is to argue for the virtue of ambivalence in thinking and writing about the nature of digital technology. Far from being agreeable or a cop-out, the ambivalent position means having to negotiate an ongoing tension without necessarily finding resolution. The kind of ambivalence I have in mind is not about occupying an indifferent position. It’s not an “anything goes” attitude, nor does it involve compromise. Ambivalence isn’t a lack of belief, but rather the ability to “stay with the trouble” of questioning basic assumptions and to be transparent about them.
The policy implementation costs and occurring mechanisms of bargaining among different levels of the Chinese governmental hierarchy: A case analysis of the prohibition of grazing in Sidong County
Authors: Feng Meng
Published: July 2019

Bargaining is a significant form of interaction between different levels of the Chinese government. Therefore, the mechanism of bargaining is suggested as a representative operational model for understanding the behaviors of local governments in the hierarchical system of government. This paper describes in detail several rounds of bargaining between superior and subordinate government officials in the process of implementing a policy prohibiting grazing in Sidong County. The policy was made at the county level. Township-level governments chose to bargain with their superior due to the difficulty of implementation in the early stages but failed. Strict implementation then led to frequent conflicts between local government and farmers. The township level of government instantly turned to bargaining with the county level and used a confrontational strategy to successfully obtain more freedom for implementation. This paper uses the theoretical framework of implementation costs analysis to illustrate the functioning mechanism of bargaining behavior. The different combinations of implementation costs cause township-level governments to choose or adjust to different methods. The high cost of implementation processes allows the township-level government to use bargaining as the only reasonable method of implementation. The process of bargaining indicates that township-level governments improve bargaining ability relative to strict requirements for implementation of policy and intensifying social conflicts. The essential features of bargaining in policy implementation among different levels of the Chinese governmental hierarchy are: no deadlock implementation; agreement point swings from side to side; and alternating occurrences between short-run equilibrium and bargaining.
Organizational Construction and Interdisciplinary Identity in a New Health Care Organization
Authors: Schall Carly Elizabeth , McAlister Cameron
Published: July 2019

The authors examine the organizational construction of an interdisciplinary brain care center via ethnographic observation of vision and mission-building meetings and semistructured interviews with organizational leaders. The authors find that success in interdisciplinary work at this organization is determined by three factors: (1) a “multilingual” leader who is able to both manage and traverse boundaries between disciplines, (2) a clear and compelling process of problem formation that resulted in a vision and mission that were shared by all participants, and (3) a team whose members have idiosyncratic career paths and identities not firmly rooted in a single scientific discipline or profession.
Neck and headache—Do we see paths through the jungle? An overview and an hypothesis
Authors: Sjaastad Ottar M , Fredriksen Torbjørn A
Published: July 2019

Background and overview:

It is widely accepted that cervicogenic headache (CEH) originates in the neck. In many circles, it is also accepted that neck–tongue syndrome belongs to the headaches that have their origin in the neck. For many headache researchers, the list: “headaches stemming from the neck” ends here. The objective of this overview was to explore the field and to determine whether there are grounds for adding other headaches to this list.

Discussion:

We suggest that headaches stemming from the neck possibly consist of five different subgroups: CEH, neck–tongue syndrome, tractor drivers’ headache, posterior headache subsequent to protracted neck-ache, and chronic paroxysmal hemicrania with mechanical attack precipitation. An overview of the clinical characteristics of each putative subgroup with comments is given.
Case Report: Morphine withdrawal induced convulsions in an adult male patient
Authors: Ali Mahmoud M. , Hamad Abdelrahman , Alhamoud Eman Nawash
Published: July 2019

This case report describes a possible unknown complication of morphine withdrawal in a patient with persistent back pain, treated with intrathecal morphine pump infusion. The patient presented with left lower extremity edema. After excluding deep vein thrombosis by Doppler ultrasound and worsening of the swelling despite oral antibiotics, peripheral edema caused by intrathecal morphine was suspected.  Twelve hours following the termination of his intrathecal morphine pump and initiation of inequivalent doses of oral morphine and tramadol, he developed convulsions. After metabolic and structural causes of convulsion were ruled out by blood tests and head imaging, equivalent doses of morphine were given. Then the patient regained full consciousness, and no additional seizures occurred. After that, opioid withdrawal emerged as the most likely explanation. Seizure is a life-threating condition; therefore, an awareness of this case is important and further studies are warranted to explore the potential association of opioid withdrawal and seizure.
Social media participatory CPD for nursing revalidation, professional development and beyond
Authors: Moorley Calvin , Chinn Theresa
Published: July 2019

Background:

In 2016 the Nursing and Midwifery Council in the UK introduced revalidation, which is the process nurses are required to follow to renew their registration. This provides an opportunity for nurses to shape, develop and evolve social media to meet their professional requirements.

Aims:

to examine different ways nurses can use social media tools for continuous professional development (CPD) and revalidation.

Methods:

using a qualitative reflective design, data were gathered from content on the @WeNurses platform and activities organised with other leading health organisations in England. These data were analysed using the social media relationship triangle developed by the authors with a thematic analysis approach.

Findings:

analysis revealed that social media was used in six categories: publishing, sharing, messaging, discussing, collaborating, and networking. Organised social media events such as: blogs, tweetchats, Twitter storms, webinars, infographics, podcasts, videos and virtual book clubs can support nurses with revalidation and professional development.

Conclusion:

Through using a participatory CPD approach and embracing professional social media applications nurses have moved social media from the concept of a revolution to an evolution.
Management of the sick neonate in the field
Authors: Redpath Adam , Bailey James
Published: July 2019

The sick foal provides a variety of challenges in ambulatory practice. A problem-based approach allows for the management of multifactorial conditions and the identification of those that require immediate hospitalisation. Diseases that present from birth include congenital abnormalities (atresia of the colon, cleft palate, ventricular septal defects), disorders acquired in-utero (meconium aspiration, pneumonia), those related to gestational age (prematurity and dysmaturity) and those associated with parturition (asphyxia, rib fractures). Disorders that develop in foals that were normal at birth include neonatal maladjustment, sepsis, meconium impactions, neonatal isoeyrthrolysis, bladder rupture, omphalophlebitis and musculoskeletal disorders. Protocols for diagnosis and management applicable to a field setting are described.
Prevalence of Toxoplasma gondii and Neospora caninum infections in households sheep "Elevage en case" in Dakar, Senegal
Authors: Dahourou Laibané Dieudonné , Gbati Oubri Bassa , Savadogo Madi , Yougbare Bernadette , Dicko Amadou , Combari Alima Hadjia Banyala , Kamga-Waladjo Alain Richi
Published: July 2019

Aim: The study aimed to evaluate the occurrence of anti-Toxoplasma gondii and anti-Neospora caninum antibodies in sheep breeding in a particular husbandry system called "Elevage en case" in Dakar, Senegal.

Materials and Methods: Blood samples were collected from 278 sheep. Serum was harvested and used for analysis. For the detection of T. gondii antibodies, 278 sera were analyzed using the modified agglutination test, while the enzyme linked-immunosorbent assay was used on 174 sheep sera to look for N. caninum antibodies.

Results: This study showed that 29.4±6.8% of sheep carried both T. gondii and N. caninum antibodies. The overall prevalence was 60.1±5.7% and 41.9±7.3% for toxoplasmosis and neosporosis, respectively. For toxoplasmosis, the prevalence was higher in Gueule Tapée (63.3%) than in Medina (58.9%), but the variation was not significant (p=0.45). Regarding the age of animals, the prevalence was significantly higher in animals over 2 years old compared to those under 2 years old (p=0.002). For neosporosis, the prevalence was significantly higher in Medina (48.67%) than Gueule Tapée (16.7%) (p=0.001), but non-significant variation was noted according to animal age.

Conclusion: The study showed that sheep reared in households have carried antibodies of T. gondii and N. caninum. The prevalence was high and it means that consumption of meat from these animals is risky if the meat is eaten undercooked.
Pancreatic Adenocarcinoma With Rare Sigmoid Colon Metastasis
Authors: Kahl Ryan , George Khalid , Patel Kruti , Stawick Laurence
Published: July 2019

Pancreatic cancer carries a poor prognosis and given insidious symptoms has often metastasized at the time of presentation. Common sites of metastasis involve liver, lungs, regional lymph nodes, or peritoneum. Colonic metastasis is rare, with only a few previous descriptions in the literature. We report a case of a 91-year-old woman with presumed pancreatic adenocarcinoma based on pathology and imaging, with colonic metastasis presenting as colonic obstruction.
Now You See It, Now You Do Not: A Case of Infliximab-Induced Vanishing Bile Duct Syndrome
Authors: Shah Parth , Larson Brent , Wishingrad Marc , Nissen Nicholas , Björnsson Einar , Sundaram Vinay
Published: July 2019

Infliximab is a commonly used antitumor necrosis factor alpha agent, especially in patients with inflammatory bowel disease. It has been associated with drug-induced liver injury including immunologic reactions, with rare cases of acute liver failure. We describe a patient with chronic cholestasis and loss of intrahepatic bile ducts after therapy with infliximab for refractory ulcerative colitis consistent with a diagnosis of vanishing bile duct syndrome. About 3 months after the initial infusion, the patient developed subfulminant liver failure and required liver transplantation.
JOINIG OF MG ALLOY AZ31B BY SELECTED TECHNOLOGIES
Authors: Kramár Tomáš , Vondrouš Petr , Jáňa Miroslav , Kupec Tomáš
Published: July 2019

This contribution presents metallurgical joining of Mg alloy AZ 31B by several technologies - Friction Stir Welding - FSW, Laser Beam Welding - LBW, soldering and their mutual comparison. The difficulty of joining Mg alloys is connected with the strong MgO layer, low ductility of the weld metal (WM), a presence of intermetallic phases connected with the hardness increase. To successfully join Mg alloys, a precise setting of welding parameters is needed. The welds are susceptible to low mechanical properties as all samples fractured at WM. From the tested methods, laser beam welding proved the best results, because laser welding is the fastest and weld strength reached the highest values, i.e. 87% of BM (base metal) strength.
O Imaginário erótico na poesia de Gilka Machado
Authors: Pinheiro Maria do Socorro
Published: July 2019

Pretendemos refletir nesse artigo sobre o imaginário erótico na poesia de Gilka Machado, observando sua forma de constituição. Para tanto, investigamos como o eu poético feminino vive seu erotismo e por meio de que imagens ele se revela. Para esse estudo, nos debruçamos sobre os poemas de temática erótica, cuja simbologia e significação apontam para uma realidade do desejo feminino. Mantemos um diálogo com as ideias de Georges Bataille (2013) e Octavio Paz (1994, 2012) sobre o erotismo e com Gaston Bachelard (1988, 2001) sobre o imaginário, que revelam a importância desse assunto no âmbito social e cultural, e que pode nos ajudar a compreender as relações entre imaginário, poesia e erotismo.

Palavras-chave: Poesia. Imaginário. Erotismo. Gilka Machado.
O imaginário do amor e da guerra em Mariana Pineda de García Lorca
Authors: De Regino Sueli Maria
Published: July 2019

Os anos que antecederam a estreia da obra Mariana Pineda, de García Lorca, em Barcelona, se caracterizaram, em toda Espanha, por tempos de grande agitação social. A ditadura do General Primo de Rivera, ao reprimir brutalmente os protestos contra o governo e estabelecer rigorosa censura aos textos teatrais e publicações em geral, motivou manifestações populares contra o rei Alfonso XIII. Mariana de Pineda tinha vinte e seis anos quando, em maio de 1831, foi executada, acusada de adesão ao movimento revolucionário e de manter contato com anarquistas expatriados em Gibraltar. Em seu poder foi encontrada uma bandeira com um triângulo verde, circundado por três palavras bordadas em vermelho: Liberdade, Igualdade, Lei. Este trabalho investiga, por meio da hermenêutica simbólica proposta por Gilbert Durand, a obra Mariana Pineda, de García Lorca, buscando, nas constelações de imagens que se formam em torno dos grandes eixos propostos por Durand, a dinâmica simbólica das imagens do amor e da guerra, presentes nessa obra.

Palavras-chave: García Lorca. Mariana Pineda. Gilbert Durand. Imaginário do segredo
Prefácio
Authors: Nunes Freitas e Souza Enivalda , Nunes Ribeiro Elzimar Fernanda
Published: July 2019

Prefácio da revista
ANINHA DUARTE: “Minas dos planaltos, da alma peregrina, de lugares de memórias e cultos”.
Authors: Nunes Freitas Souza Enivalda
Published: July 2019

Entrevista com a artista plástica Aninha Duarte.
Perception of Industries on Student Performance of Bachelor of Engineering (Hons.) Electrical Engineering Program
Authors: Baharom Rahimi , Abdul Hamid Zulkiffli , Yusoff Yusnani , Ihsan Mohd Yassin Ahmad
Published: July 2019

This paper presents a study on the perception of industries to the performance of Bachelor of Engineering (Hons.) Electrical Engineering students of Faculty of Electrical Engineering, Universiti Teknologi MARA (UiTM), Malaysia. This study was carried out based on the industrial training course whereby, during this period, the students are attached with the industry under supervision from their qualified personnel. After the students complete this course, they are evaluated by their industrial training supervisors using rubric measures provided by the faculty. The supervisors’ perception on the performance of all students in the degree programme (155 students) was evaluated based on the marks given to the students according to their communication skills, professionalism and work performance after completion of the industrial training. The results from the rubrics form was analysed to identify the strengths and the weaknesses of the students. The study revealed several weaknesses of students, which can be improved upon by conducting special training or courses for them to enhance their performance before graduation.
A Review on the Contemporary Research on Radio Frequency Energy Harvesting
Authors: Sangaran Diagarajan Manee , Ramasamy Agileswari , Bt. Md Din Norashidah , Naidu Vummadisetty Praveen
Published: July 2019

Radio Frequency harvesting has recently become one of the alternate approaches to power up low power wireless networks. This evolving technology opens the gate for positive energy renewal for wireless components. This paper presents a comprehensive review which includes all the important components in a RF energy harvesting system which are microstrip patch antennas, rectifier modules and power management modules. Different types of microstrip patch antennas and its designs and outputs are discussed. Rectifier modules with Schottky diodes operating under two different frequency bands are also compared and discussed. In addition, different methods of available power management circuits with different methods are also deliberated in this paper. This review also explores various key design issues and envisions some open research directions.
Performance Evaluation for Vision-Based Vehicle Classification Using Convolutional Neural Network
Authors: Durratun Safiyah Raja , Abdul Rahim Zaid , Syafiq Syamsul , Ibrahim Zaidah , Sabri Nurbaity
Published: July 2019

Vision-based vehicle classification is a very challenging task due to vehicle pose and angle variations, weather conditions, lighting quality, and limited number of available datasets for training.  It can be applied for driver assistance system and autonomous vehicles.  This paper conducted a performance evaluation for this task based on three Convolutional Neural Network (CNN) models, which are simple CNN, and pre-trained CNN models that are AlexNet and GoogleNet.  A dataset of more than 7000 images from the Image Processing Group (IPG) has been used for training and testing and the results indicate that AlexNet achieves the best classification result that is 65.09%. This result is obtained because of the variations of the quality of the images.
Development of Transmission Line Failure Rate Model using Polynomial Regression
Authors: K.N Arshad M , Aminudin N , Marsadek M , Z.M Noor S , H Salimin R , Johari D
Published: July 2019

Drastic climate change and more frequent occurrences of natural disaster which destruct power system infrastructure results in power delivery congestion at the transmission network. Heavily loaded transmission network that operates during adverse weather is very prone to outage, hence may trigger more critical problem such as voltage collapse. Research on risk of voltage collapse due to transmission line outage has been carried out by numerous researcher. Generally, this risk study involves two major parts; one is the assessment of voltage collapse impact due to the line outage and the other is the assessment of probability of line outage to occur. According to many literatures, precise probability estimation is very difficult to be evaluated since it is very unpredictable. Therefore, serious attention and studies have been focused in estimating the probability of transmission line outage prudently. The accuracy of probability assessed using Poisson distribution is very much dependent on its failure rate value. In this research, a weather-based transmission line failure rate model is developed using Ordinary Least Square (OLS) polynomial regression technique. To evaluate the effectiveness of the proposed method, comparative study with previous research which utilized robust MM-estimator technique is conducted. The results revealed that the proposed technique is more precise and the weather considered in the study has more significant impact compared to the preceding work. Thus, this finding contributes to more accurate probability estimation in risk of voltage collapse assessment.
Personalized Recommender System for Calculus using Content-Based Filtering Approach
Authors: Latiffah Adam Noor , Alif Zulkafli Muhammad , Cik Soh Shaharuddin , Ashikin Mohamad Kamal Nor , Abu Bakar Nordin
Published: July 2019

In this millennial age, Internet is becoming essential to human kind. Along with the growth of Internet users, information is also becoming huge and starting to cause difficulties to find the relevant contents. Thus, the recommender system was introduced. It helps the user to suggest the items based on the user’s preferences. This system could help the students as Calculus is one of the tough subjects feared by most students. Credits given to the technology as many sources on the web can provide tutorials, working examples and solutions on the subjects. However, there are too many of them. Students had to make a few selections, which one can fulfil their needs of specific calculus topics. The personalized recommender system developed was a content-based filtering recommender system with its own scraping engine to collect the sources from the Internet which focuses on the basic Calculus topics. The system and engine were constructed by using Flask framework together with its relevant libraries.
Exploring Maps at Different Orientations and Effects on Blind Users
Authors: Naquiah Abd Hamid Nazatul , Adilah Wan Adnan Wan , Hanis Abdul Razak Fariza
Published: July 2019

Maps have been used to facilitate travellers in wayfinding and they are normally read at different orientations. A multimodal map has been introduced to enable blind people to learn maps. However, such maps usually enable them to explore maps in a fixed orientation. The effect of exploring maps in such way on user cognitive maps and sense of directions is unknown. Therefore, this paper investigates the effect on blind people’s cognitive maps and their sense of directions. Results showed that in the rotatable condition, some blind people have the ability to build accurate cognitive maps of the tested maps as accurate as in the static condition. Blind people were found able to point to the direction accurately in the rotatable condition than in the static condition. This was supported by their scores when reconstructing maps. However, there were no correlations found between user sense of directions and their pointing accuracy.
Reliability-Based Phasor Measurement Unit with Outage of Transmission Lines
Authors: Murtadha Othman Muhammad , Musirin Ismail , Munirah binti Mohd Rosli Ain , Lutfi Othman Mohammad
Published: July 2019

This paper discussed on the Monte-Carlo simulation technique to determine the optimal placement of Phasor Measurement Unit (PMU) in power system whilst ensuring the observability of the system. In addition, the information on Force Outage Rate (FOR) of the system can be calculated using Markov Chain technique. The FOR represents the level of risk security for the transmission line that happened because of unscheduled and unexpected failure or repair in the system. Subsequently, the reliability model of the transmission line can be developed. Using IEEE 57-bus system, the results obtained from Monte-Carlo simulation technique demonstrate the optimal PMU placement, the desired reliability of the Wide Area Monitoring System (WAMS) as well as the number and location of covered contingencies of the system.