Use of digital technologies for HR management in Germany: Survey evidence

Using a survey with 57 German firms, we evaluate the level of digitalization of the HR management function and document perceived benefits and barriers of technology adoption from organizational and individual users’ perspectives. The results give a reason for optimism. Most of the companies report that the core HR processes are digitized. We do not observe adverse effects of the digital HRM tools on users’ job satisfaction and work stress. Still, more than half of companies do not yet use digital tools for strategic HRM decisions. Respondents appreciate the increased speed and cost-efficiency of digital HRM processes and associate it with a competitive advantage in talent acquisition. The most prominent adoption barriers are lack of qualified professionals, high costs, and uncertainty regarding the legal framework. Moreover, we test if small and medium-sized enterprises differ systematically from larger organizations in how they use digital HRM tools

Face masks increase compliance with physical distancing recommendations during the COVID-19 pandemic

Governments across the world have implemented restrictive policies to slow the spread of COVID-19. Recommended face mask use has been a controversially discussed policy, among others, due to potential adverse effects on physical distancing. Using a randomized field experiment (N=300), we show that individuals keep a significantly larger distance from someone wearing a face mask than from an unmasked person. According to an additional survey experiment (N=456), masked individuals are not perceived as being more infectious than unmasked ones, but they are believed to prefer more distancing. This result suggests that, in times where mask use is voluntary, wearing a mask serves as a social signal for a preferred greater distance that is respected by others. Our findings provide strong evidence against the claim that mask use creates a false sense of security that would negatively affect physical distancing

Endocardita infecţioasă cu debut neurologic

Prezentăm cazul unui adult în vârstă de 46 ani, nefumător, care se internează în context febril și alterarea stării generale. Diagnosticul confirmat anterior la examenul ecocardiografic prin prezența vegetațiilor de dimensiuni mari pe valva mitrală și valva aortică, iar agentul etiologic nedepistat la hemoculturi repetate, a fost multidrug-rezistent. Pe parcursul spitalizării și al tratamentului, persistă simptomatologia de endocardită infecțioasă, ce culminează cu insuficiență cardiacă avansată. Particularitățile cazului constau în: a) debutul endocarditei prin embolie cerebrală b) rezistența înaltă a agentului patogen

Синкопа сердечного происхождения у пожилых пациентов

USMF Nicolae Testemițanu, Spitalul Militar Central, Universitatea de Medicină Iuliu Hațiegheanu, Cluj-Napoca, România, Institutul de Cardiologie, SCM Sfânta Treime, Conferinţa consacrată aniversării celor 40 de ani de la fondarea SCM Sfânta Treime 17 iunie 2016 Chișinău, Republica MoldovaCardiovascular pathology at the elderly represents a theme of particular interest, this is the main cause of morbidity and mortality in this segment of population, but also the fact that in the last century the population over 60 years (this be ingarbitrary limit laid down by the OMS from which a person is considered older) has double dandis expected to increase over the years. To tackele syncopes of origin cardiac which are based on aortic stenosis, mitral stenosis and insuffi cient combined valvular . It hasbeen a clinical study retrospectively in the premises of the Clinic Municipal Hospital no. 3 “Sfânta Treime”, on a lot of 50 patients (selection based on the criteria defined – primordial tothe status of syncope). Prognosis variants of the patients with syncope cardiac remain reserved, being influenced by the etiology syncopes, the evolution of the disease, treatment continuously, surgical treatment and at the post-surgery treatment.Сердечно-сосудистая патология у пожилых людей представляет особый интерес. Она представляет собой основную причину заболеваемости и смертности в этой категории населения. За последнее столетие население старше 60 лет (это произвольная граница, установленная ВОЗ с достижения которой человек считается пожилым) удвоилось и ожидается, что увеличится впоследствии с годами. Исследуя синкопы сердечного происхождения, в основе которых лежат аортальный стеноз, митральный стеноз и комбинированная клапанная недостаточность, было произведено ретроспективное клиническое исследование на базе Городской клинической больницы № 3 «Sfânta Treime» на группе, состоящей из 50 пациентов (подобранных по четко определенным критериям, основным их которых является синкопальное состояние). У пожилых пациентов с кардиогенными синкопами прогноз остается сомнительным, обусловленный этиологией синкопов, эволюцией заболевания, постоянным лечением, хирургическим и послеоперационным лечением

Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

Burnout among surgeons before and during the SARS-CoV-2 pandemic: an international survey

Background: SARS-CoV-2 pandemic has had many significant impacts within the surgical realm, and surgeons have been obligated to reconsider almost every aspect of daily clinical practice. Methods: This is a cross-sectional study reported in compliance with the CHERRIES guidelines and conducted through an online platform from June 14th to July 15th, 2020. The primary outcome was the burden of burnout during the pandemic indicated by the validated Shirom-Melamed Burnout Measure. Results: Nine hundred fifty-four surgeons completed the survey. The median length of practice was 10 years; 78.2% included were male with a median age of 37 years old, 39.5% were consultants, 68.9% were general surgeons, and 55.7% were affiliated with an academic institution. Overall, there was a significant increase in the mean burnout score during the pandemic; longer years of practice and older age were significantly associated with less burnout. There were significant reductions in the median number of outpatient visits, operated cases, on-call hours, emergency visits, and research work, so, 48.2% of respondents felt that the training resources were insufficient. The majority (81.3%) of respondents reported that their hospitals were included in the management of COVID-19, 66.5% felt their roles had been minimized; 41% were asked to assist in non-surgical medical practices, and 37.6% of respondents were included in COVID-19 management. Conclusions: There was a significant burnout among trainees. Almost all aspects of clinical and research activities were affected with a significant reduction in the volume of research, outpatient clinic visits, surgical procedures, on-call hours, and emergency cases hindering the training. Trial registration: The study was registered on clicaltrials.gov "NCT04433286" on 16/06/2020

Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at √s = 13 TeV

Abstract The parton-level top quark (t) forward-backward asymmetry and the anomalous chromoelectric (d̂ t) and chromomagnetic (μ̂ t) moments have been measured using LHC pp collisions at a center-of-mass energy of 13 TeV, collected in the CMS detector in a data sample corresponding to an integrated luminosity of 35.9 fb−1. The linearized variable AFB(1) is used to approximate the asymmetry. Candidate t t ¯ events decaying to a muon or electron and jets in final states with low and high Lorentz boosts are selected and reconstructed using a fit of the kinematic distributions of the decay products to those expected for t t ¯ final states. The values found for the parameters are AFB(1)=0.048−0.087+0.095(stat)−0.029+0.020(syst),μ̂t=−0.024−0.009+0.013(stat)−0.011+0.016(syst), and a limit is placed on the magnitude of | d̂ t| < 0.03 at 95% confidence level. [Figure not available: see fulltext.

Measurement of t(t)over-bar normalised multi-differential cross sections in pp collisions at root s=13 TeV, and simultaneous determination of the strong coupling strength, top quark pole mass, and parton distribution functions

Peer reviewe

Search for heavy resonances decaying to two Higgs bosons in final states containing four b quarks

A search is presented for narrow heavy resonances X decaying into pairs of Higgs bosons (H) in proton-proton collisions collected by the CMS experiment at the LHC at root s = 8 TeV. The data correspond to an integrated luminosity of 19.7 fb(-1). The search considers HH resonances with masses between 1 and 3 TeV, having final states of two b quark pairs. Each Higgs boson is produced with large momentum, and the hadronization products of the pair of b quarks can usually be reconstructed as single large jets. The background from multijet and t (t) over bar events is significantly reduced by applying requirements related to the flavor of the jet, its mass, and its substructure. The signal would be identified as a peak on top of the dijet invariant mass spectrum of the remaining background events. No evidence is observed for such a signal. Upper limits obtained at 95 confidence level for the product of the production cross section and branching fraction sigma(gg -> X) B(X -> HH -> b (b) over barb (b) over bar) range from 10 to 1.5 fb for the mass of X from 1.15 to 2.0 TeV, significantly extending previous searches. For a warped extra dimension theory with amass scale Lambda(R) = 1 TeV, the data exclude radion scalar masses between 1.15 and 1.55 TeV

MUSiC : a model-unspecific search for new physics in proton-proton collisions at root s=13TeV

Results of the Model Unspecific Search in CMS (MUSiC), using proton-proton collision data recorded at the LHC at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb(-1), are presented. The MUSiC analysis searches for anomalies that could be signatures of physics beyond the standard model. The analysis is based on the comparison of observed data with the standard model prediction, as determined from simulation, in several hundred final states and multiple kinematic distributions. Events containing at least one electron or muon are classified based on their final state topology, and an automated search algorithm surveys the observed data for deviations from the prediction. The sensitivity of the search is validated using multiple methods. No significant deviations from the predictions have been observed. For a wide range of final state topologies, agreement is found between the data and the standard model simulation. This analysis complements dedicated search analyses by significantly expanding the range of final states covered using a model independent approach with the largest data set to date to probe phase space regions beyond the reach of previous general searches.Peer reviewe