bluuebunny/crossref_metadata_2025_split huggingface dataset:
Justiția organizațională si afectivitatea negativă: o metaanaliză a relației acestora cu comportamentele contraproductive
Authors: Pitariu Horia , Sulea Coralia , Zaborilă Cătălina , Maricuțoiu Laurențiu 
Published: December 2020

În cadrul articolului de față s-a efectuat o metaanaliză pe 21 studii empirice incluzând 5678 participanți din 23 de esantioane independente cu o medie de 276,86 subiecți pe esantion. Au fost investigați predictori individuali si organizaționali aferenți comportamentului contraproductiv la locul de muncă. Variabilele luate în considerare au fost: justiția organizațională (interacțională, procedurală si distributivă) si afectivitatea negativă, ca predictori ai comportamentului contraproductiv. Rezultatele indică o asociere negativă între dimensiunile justiției si comportamentele contraproductive si o asociere medie pozitivă între afectivitatea negativă si comportamentele contraproductive. Cel mai bun predictor al comportamentelor contraproductive este justiția procedurală. Afectivitatea negativă influențează direct proporțional comportamentul contraproductiv al angajatului, acesta fiind însă preponderent direcționat spre organizație si nu spre colegi. Autorii descriu implicațiile pentru cercetări ulterioare si sugestiile cu privire la comportamentul managerilor.
MLQ (Chestionarul Multifactorial de Leadership). Date preliminare pentru România
Authors: Iliescu Dragoș , Mocanu Rareș , Beldean Felicia 
Published: December 2020

Chestionarul Multifactorial de Leadership (MLQ), în versiunea sa cea mai recentă (Forma 5X) este un instrument complex, dezvoltat atât cu scopul de a oferi o dimensiune clară a componentelor transformaționale, tranzacționale si celor de tip pasiv/evitant ale leadershipului, cât si pentru a oferi un profil cât mai complet al performanțelor unui candidat si al potențialului său de leadership. MLQ este unul din instrumentele de leadership cel mai des folosite în cadrul cercetărilor de teren si de laborator, fiind un instrument adecvat si foarte util în activități de selecție, transfer, promovare, dezvoltare si consiliere individuală, de grup sau organizațională. Numeroase forme ale MLQ au fost folosite în peste 30 de țări în organizații industriale, spitale, instituții religioase, organizații militare, agenții guvernamentale, facultăți, scoli primare si gimnaziale. S-a demonstrat că MLQ este la fel de eficient, indiferent dacă leaderul este evaluat de superiori direcți, colegi, subordonați direcți sau colaboratori (inclusiv clienți). Un avantaj marcant al MLQ îl constituie faptul că poate fi administrat în forma 360°, pentru acest chestionar, existând forme paralele de auto-evaluare si de hetero-evaluare.

În România, adaptarea MLQ a început în anul 2005. Prezentul studiu este o pilotare a chestionarului în forma sa de auto-evaluare, pe un esantion pilot de 229 de participanți, cu funcții de conducere, plasați la nivel mediu si de top în corporații din Bucuresti. Sunt prezentate, comparativ cu aceleasi statistici raportate de autori pe esantioane din SUA, indicii statistici primari, caracteristicile de fidelitate ale scalelor, corelațiile interscale si analiza factorială a itemilor testului. Rezultatele acestei pilotări si cercetări preliminarii sunt încurajatoare, semnalând, în ciuda necesității clare de efort suplimentar dedicat adaptării finale a chestionarului în România, faptul că traducerea si adaptarea MLQ este până la acest moment un succes.
Gas turbine outlets: test results
Authors: Ponomarev Nikolay N. 
Published: December 2020

Object and purpose of research. The object of this work is gas turbine outlet consisting of axial-radial diffuser with the struts and the volute. The purpose is to create a methodology for engineering calculations, taking into account the mutual influence of the diffuser and the volute.
Materials and methods. Experimental study of the flow in the models of outlets by measuring total and static pressure in characteristic sections. Calculation of integral and averaged flow parameters in measurement sections. Visualization of boundary flows. Based on the experimental results, development of regression models for the correction factors to be applied in the theoretical model, with selection of relevant factors.
Main results. An experimental study of 23 variants of models with a total volume of 112 experimental points (modes) was carried out. On the basis of the experiment, methodology and program for engineering calculation of total pressure losses in the outlets were developed. It was found that the installation of guide blades and radial ribs in the diffuser in order to reduce local expansion angles with the ultimate purpose of mitigating total pressure losses actually does not lead to this result due to the because the flow in the diffuser becomes asymmetric due to its interaction with the volute. Visualization of boundary flows in the diffusers and the volutes has been performed, which makes it possible to identify the locations of separations causing increased pressure losses.
Conclusion. An engineering method for calculating the total pressure loss in gas turbine outlet has been developed.
The technique makes it possible, taking size restrictions into account, to select the geometry of the flow section that ensures
minimum total pressure loss.
Overcoming Overuse Part 3: Mapping the Drivers of Overuse in Musculoskeletal Health Care
Authors: O'Keeffe Mary , Traeger Adrian C. , Michaleff Zoe A. , Décary Simon , Garcia Alessandra N. , Zadro Joshua R. 
Published: December 2020

Summary Overcoming overuse in musculoskeletal health care requires an understanding of its drivers. In this, the third article in a series on “Overcoming Overuse” of musculoskeletal health care, we consider the drivers of overuse under 4 domains: (1) the culture of health care consumption, (2) patient factors and experiences, (3) clinician factors and experiences, and (4) practice environment. These domains are interrelated, interact, and influence the clinician-patient interaction. We map drivers to potential solutions to overcome overuse. J Orthop Sports Phys Ther 2020;50(12):657–660. doi:10.2519/jospt.2020.0111
Disability, Physical Impairments, and Poor Quality of Life, Rather Than Radiographic Changes, Are Related to Symptoms in Individuals With Ankle Osteoarthritis: A Cross-sectional Laboratory Study
Authors: Al-Mahrouqi Munira M. , Vicenzino Bill , MacDonald David A. , Smith Michelle D. 
Published: December 2020

Objective To compare physical and patient-reported outcomes between (1) individuals with symptomatic radiographic ankle osteoarthritis (OA) and asymptomatic individuals, and (2) asymptomatic individuals with and without radiographic ankle OA. Design Cross-sectional study. Methods Ninety-six volunteers (31 symptomatic individuals with radiographic ankle OA, 41 asymptomatic individuals with radiographic ankle OA, and 24 asymptomatic individuals without radiographic ankle OA) completed a survey on quality of life (QoL), function, pain, disability, kinesiophobia, ankle instability, and physical activity, and undertook physical assessments of ankle muscle strength, heel-raise endurance, dorsiflexion range of motion (ROM), and ambulatory function. Results Symptomatic individuals with radiographic ankle OA reported greater pain (standardized mean difference [SMD], 1.70; 95% confidence interval [CI]: 1.18, 2.23), disability (SMD, 1.44; 95% CI: 0.93, 1.95), and instability (SMD, −3.92; 95% CI: −4.68, −3.17), and lower patient-reported function (SMD, −2.10; 95% CI: −2.66, −1.54) and QoL (SMD, −0.98; 95% CI: −1.47, −0.50), than asymptomatic individuals. Muscle strength (all SMDs, −0.73 or greater), heel-raise endurance (SMD, −0.71; 95% CI: −1.16, −0.25), dorsiflexion ROM (SMD, −1.54; 95% CI: −2.02, −1.06), and ambulatory function (all SMDs, 0.57 or greater) were significantly impaired in symptomatic individuals with radiographic ankle OA compared to asymptomatic individuals. Most patient-reported and physical outcomes were similar between asymptomatic individuals with and without radiographic ankle OA. Conclusion Individuals with symptomatic radiographic ankle OA had poorer physical outcomes, function, and QoL compared to asymptomatic individuals with and without radiographic ankle OA. This suggests that disability in ankle OA is related to symptoms rather than to radiographic evidence of degeneration. J Orthop Sports Phys Ther 2020;50(12):711–722. doi:10.2519/jospt.2020.9376
Headache- and Dizziness-Specific Health-Related Quality-of-Life Impairments Persist for 1 in 4 Amateur Athletes Who Are Cleared to Return to Sporting Activity Following Sport-Related Concussion: A Prospective Matched-Cohort Study
Authors: Büttner Fionn , Howell David R. , Doherty Cailbhe , Blake Catherine , Ryan John , Delahunt Eamonn 
Published: December 2020

Objectives To prospectively investigate the recovery of athlete-reported symptoms and the condition-specific health-related quality of life (HRQoL) following sport-related concussion. Design Prospective matched-cohort study. Methods We recruited amateur athletes who were diagnosed with sport-related concussion by emergency department physicians. Study participants were assessed at 3 time points following sport-related concussion. At each assessment, participants completed 5 condition-specific HRQoL patient-reported outcome measures to evaluate participants' perceptions of the effects of specific concussion-related symptoms on their HRQoL. We performed log-linear analyses to assess the proportion of concussed participants with clinically impaired condition-specific HRQoL compared with the proportion of participants in the control group with clinically impaired condition-specific HRQoL. Results Fifty participants with sport-related concussion and 50 control participants matched by sex, age, and activity completed the study. Upon return to sporting activity, there was a significantly greater proportion of participants in the concussion group who perceived that headache, neck pain, and dizziness had an adverse effect on their HRQoL compared with the control group. Two weeks after return to sporting activity, there was still a significantly greater proportion of participants in the concussion group who perceived that headache (χ21 = 9.0; odds ratio [OR] = 4.4; 95% confidence interval [CI]: 1.5, 15.2; P = .003) and dizziness (χ21 = 9.5; OR = 13.5; 95% CI: 1.8, 604.9; P = .006) had an adverse effect on their HRQoL compared with the proportion of clinically impaired participants in the control group. Conclusion Of concussed participants, 1 in 4 perceived that headache and dizziness had adverse effects on their HRQoL after returning to sporting activity following sport-related concussion compared with nonconcussed, control participants. J Orthop Sports Phys Ther 2020;50(12):692–701. doi:10.2519/jospt.2020.9485
Safety of the Inari FlowTriever device for mechanical thrombectomy in patients with acute submassive and massive pulmonary embolism and contraindication to thrombolysis
Authors: Markovitz Michael , Lambert Nicholas , Dawson Lowell , Hoots Glenn 
Published: December 2020

Objectives:
This report evaluates the safety of percutaneous mechanical thrombectomy with the Inari FlowTriever System (Inari Medical, Irvine, California) for the treatment of acute massive/submassive pulmonary embolism (PE) specifically in therapeutically anticoagulated patients with contraindication to thrombolysis.

Material and Methods:
A single-center retrospective chart review was performed on patients with contraindication to thrombolysis and massive/submassive PE who underwent FlowTriever thrombectomy between 2017 and 2019. Primary outcomes included procedure or device-related complications within 30 days of discharge. Secondary outcomes included technical and clinical success defined by improvement in mean pulmonary artery pressure (PAP), oxygen saturation, and heart rate.

Results:
Thirteen patients with contraindication to thrombolysis received FlowTriever thrombectomy with technical success achieved in all cases. Zero major or minor adverse events, technical complications, delayed procedure-related complications, or deaths within 30 days of hospital discharge occurred. Mean PAP decreased significantly by 19.1% (32.5 ± 13.3 mmHg to 26.3 ± 12.4 mmHg; P = 0.0074, 95% confidence interval (CI) 2.0–10.5 mmHg). Oxygen saturation improved post-procedure (increased 3.9 ± 3.8%; p = 0.0032, 95% CI 1.6– 6.1%) as did heart rate (decreased 22.2 ± 17.0 bpm; P < 0.001, 95% CI 11.9–32.4 bpm). Anticoagulation was maintained throughout every procedure and all patients were closed with purse-string suture only.

Conclusion:
FlowTriever mechanical thrombectomy appears safe for acute PE in therapeutically anticoagulated patients with contraindications to thrombolytic therapy. These patients may experience immediate hemodynamic improvements similar to those reported in other studies. Further data are needed to prospectively evaluate long-term safety in this population.
Penggunaan Aplikasi “AMELIA” Pembelajaran dalam Jaringan Mahasiswa Jurusan Pendidikan Sejarah
Authors: Pelealu Aldegonda Evangeline , Rahman Eka Yuliana , Dasfordate Aksilas 
Published: December 2020

<p class="JOURNALBODY">Knowledge Management (Manajemen pengetahuan) merupakan proses rangkaian kegiatan penguasaan teknologi informasi yang tidak lepas dari pengelolaan. Learning Management System atau LMS elektronik sebuah platform untuk penyebaran materi pembelajaran online guna meningkatkan kinerja akademik dengan penyediaan sumber daya berbasis web. Kendala yang sering dihadapi di institusi pendidikan dalam menerapkan E-Learning sistem kurang menyesuaikan dengan kondisi dan tingkat knowledge dari penggunanya. Penelitian ini bertujuan untuk mengetahui efektivitas penggunaan aplikasi AMELIA (Aplikasi Manajemen Pembelajaran dalam Jaringan UNIMA) serta kemudahan menggunakan aplikasi pembelajaran daring pada jurusan Pendidikan Sejarah Universitas Negeri Manado. Penelitian ini dilakukan dengan menggunakan metode penelitian survey deskriptif, untuk sampel pada penelitian ini mahasiswa semester 2 angkatan 2019 Jurusan Pendidikan Sejarah Universitas Negeri Manado. Teknik pengumpulan data menggunakan angket. Dalam penelitian ini satu rombongan belajar sebanyak 38 mahasiswa dan sekitar 25 orang atau 65,8 % yang mengisi form efektif, dan kurang efektif sebanyak 13 orang atau 34,2 % dalam proses pelaksanaan pembelajaran menggunakan aplikasi Amelia dikondisi wabah Covid-19. Kemudahan dalam akses oleh 29 orang atau sekitar 76,3% mengatakan kesusahan dalam mengakses karena masalah internet maupun kekuranga kuota dan 9 orang atau sekitar 23,7 % mudah dalam mengakses aplikasi Amelia. Kemampuan menggunakan Fitur dalam aplikasi Amelia 22 orang atau sekitar 57,9% mengungkapkan tidak mudah dan 16 orang atau sekitar 42,1 % mengatakan mudah dalam menggunakan fitur yang terdapat dalam LMS UNIMA yakni Aplikasi Amelia. Penggunaan alat elektronik oleh mahasiswa dalam mengikuti kuliah menggunakan aplikasi Amelia yaitu 37 orang atau sekitar 97,4% menggunakan Handphone dan 1 orang atau 2,6% menggunakan Laptop. Persepsi mahasiswa dengan penggunaan aplikasi Amelia untuk pembelajaran dalam jaringan dirasa efektif dimana semua materi mata kuliah yang diprogram telah tersedia dalam satu aplikasi.Kondisi pandemi mempengaruhi tingginya tingkat efektivitas dalam pembelajaran secara daring dimana saat ini menghadapi wabah Covid-19 peraturan menteri masih menghimbau untuk kuliah dalam jaringan dan meminimalisir kegiatan yang berada di kampus.</p>
Analisis self-regulated learning (SRL) siswa kelas VI sekolah dasar di yogyakarta
Authors: Gestiardi Rivan , Maryani Ika 
Published: December 2020

SRL penting dimiliki siswa kelas VI karena menjadi sebuah pertimbangan dalam proses belajar dan megajar terutama siswa kelas VI yang dihadapkan pada tantangan jenjang sekolah selanjutnya. Penelitian ini bertujuan untuk menganalisis self-regulated learning (SRL) siswa kelas VI sekolah dasar di Yogyakarta. Penelitian ini menggunakan pendekatan Deskriptif Kuantatif dengan metode survey yang menggambarkan suatu fenomena pada wilayah tertentu. Jumlah sampel yang digunakan adalah 263 siswa kelas VI dari sepuluh sekolah dasar di Yogyakarta. Instrumen yang digunakan adalah kuesioner SRL dengan skala likert 1-5 dengan gradasi alternatif jawaban sangat setuju-sangat tidak setuju. Analisis yang digunakan adalah analisis deskriptif kuantitatif (statistik deskriptif). Hasil penelitian menujukan bahwa artinya secara umum, kemampuan SRL yang dimiliki kelas VI sekolah dasar di Yogyakarta masuk dalam kategori tinggi. Namun jika dijabarkan berdasarkan indikatornya, SRL pada indicator cognitive dan self-reflection memang berada pada kategori tinggi, namun pada indikator performance menunjukkan kategori sedang. Oleh karena itu, perlu upaya dari guru, sekolah, orang tua, maupun siswa untuk dapat meningkatkan performance dalam belajar melalui penerapan model pembelajaran, media pembelajaran, bimbingan orang tua dan guru, serta kebijakan sekolah yang mendukung terciptanya iklim belajar yang positif
ENTHALPY OF FORMATION OF CARBOXYLIC ACIDS: NUMERICAL CALCULATIONS AND SOME REGULARITIES
Authors: Виноградова Марина Геннадьевна 
Published: December 2020

Приведены численные расчеты энтальпии образования карбоновых кислот. Сделаны предсказания. Результаты расчетов согласуются с экспериментом. Выявлены определенные закономерности.
Numerical calculations of the enthalpy of formation of carboxylic acids are given. Predictions are made. The calculation results are consistent with the experiment. Certain patterns have been identified.
POTENTIOMETRIC DETERMINATION OF MEDICINES OF THE RIMANTADINE GROUP USING A NEW IONSELECTIVE ELECTRODE
Authors: Вахрушкина Мария Валерьевна , Никольский Виктор Михайлович 
Published: December 2020

Описано создание твердотельного ионселективного электрода с трансдьюсером из электропроводного полимера для идентификации лекарственных веществ группы римантадина. Проведено потенциометрическое определение действующего вещества в лекарственных формах различных фирм.
The creation of a solid-state ion-selective electrode with a transducer from an electrically conductive polymer for the identification of drugs of the rimantadine group is described. The potentiometric determination of the active substance in the dosage forms of various companies was carried out.
OUTCOME BASED LEARNING: AN ANALYSIS OF IMPACT ON ACADEMIC ACHIEVEMENT AMONG SCHOOL STUDENTS
Authors: Thote Prashant , S Gowri 
Published: December 2020

The present century belongs to Science and Technology. Scientific knowledge is valued across the globe and great emphasis is on scientific attitude towards all fields of life. The purpose of education of Science school is to lead the nation to collaborate and compete with rest of the world. The students face difficulty in studying Chemistry due to its abstract nature of concepts. To address this issue, students are taught solid state Chemistry by using computer-based models of unit cells and the crystal lattices. The present study is experimental in nature. Total 60 students participate in the study. Samples are distributed in two groups (study group and control group). Data is collected by using question paper. The Chemistry of solid state is taught to the experimental group by using model based on computer and control group is taught by using traditional chalk and board methodology. The instrument is validated by its content and is consulted by an expert. The instrument reliability of is analyzed by applying t-test. Result of the research reveals that the computer-based model on crystal lattices and unit cell is more effective than conventional model in learning and the academic achievement of the students in Chemistry. The t-test proves that the t-value 0.691 is substantial with p (p<0.05). Based on the findings of the present study the computer-based model of unit cell and crystal lattice is an effective teaching tool for learning and to improve the academic achievement in Chemistry.
Protocol of the SPARTE Study: A Strategy for Preventing Cardiovascular and Renal Events based on ARTErial Stiffness
Authors: Laurent Stephane , Chatellier Gilles , Azizi Michel , Calvet David , Choukroun Gabriel , Danchin Nicolas , Delsart Pascal , Gosse Philippe , London Gerard , Mourad Jean-Jacques , Pannier Bruno , Pereira Helena , Stephan Dominique , Boutouyrie Pierre ,   SPARTE Investigators
Published: December 2020

AbstractWhether arterial stiffness is a surrogate end-point for cardiovascular and renal disease has never been directly demonstrated by a controlled clinical trial. Our main hypothesis is a better prevention of outcomes in high risk hypertensives with PWV normalization driven strategy than with usual blood pressure driven therapeutic strategy based on European Society of Hypertension—European Society of Cardiology (ESH—ESC) guidelines. The strategy for preventing cardiovascular and renal events based on arterial stiffness study is a multicenter open-label randomized controlled trial with blinded endpoint evaluation comparing a therapeutic strategy targeting the normalisation of Pulse Wave Velocity (PWV group) versus a classical therapeutic strategy only implementing the ESH—ESC Guidelines (conventional group), for reducing cardiovascular and renal events. Patients with primary hypertension, aged 55–75 years, and at medium-to-very high cardiovascular risk will be included and followed-up for 4 years. In the PWV group, treatment will be adjusted to carotid-femoral PWV measured every 6 months. In the conventional group, PWV will be measured at baseline and every 2 years, but its value will be blinded to the investigator in charge of the patient. In the PWV group, the therapeutic strategy will preferably use a combination of Angiotensin-converting Enzyme Inhibitor (ACEI) [or Angiotensin Receptor Blockers (ARB)] and calcium channel blockers, as well as maximal recommended doses of ACEIs and ARBs. The primary combined endpoint includes stroke and coronary events (myocardial infarction, angioplasty, bypass), fatal or not, peripheral artery disease (angioplasty, bypass, amputation), hospitalization for heart failure, aortic dissection, chronic kidney disease (doubling of creatinine, dialysis), and sudden death. Twenty-five research centers will include a total of 1500 patients, in order to show a 20% reduction in the primary combined endpoint - the incidence of which is estimated at 10% per year - in the PWV group compared to the conventional group.
Enhancement of thermal stability and wettability for epoxy/Cu coated carbon fiber composites
Authors: Mahmood Reem Y. , Alobaedy Aseel 
Published: December 2020

This research study the effect of surface modification and copper (Cu) plating carbon fiber (CF) surface on the thermal stability and wettability of carbon fiber (CF)/epoxy (EP) composites. The TGA result indicates that the thermal-stability of carbon fiber may be enhanced after Cu coating CF. TGA curve showed that the treatment temperature was enhanced thermal stability of Ep/CF, this is due to the oxidation during heating. The Cu plating increased the thermal conductivity, this increase might be due to reduce in contact resistance at the interface due to chemical modification and copper plating and tunneling resistance.
The increase of surface polarity after coating cause decrease in the value of contact angle. As well as the increase of CuO as a function of the heat temperature cause the rapid contact angle decrease and can strongly enhance the wettability.