221 research outputs found
The perception of psychosocial risks and work-related stress in relation to job insecurity and gender differences: a cross-sectional study
Introduction.The perception of psychosocial risks exposesworkers to developwork-related stress. Recently the attention of scientific
research has focused on a psychosocial risk already identified as âjob insecurityâ that regards the âoverall concern about the
continued existence of the job in the futureâ and that also depends onworkerâs perception, different for each gender. Aimof the Study.
The aim of this cross sectional study is to show if job insecurity, in the formof temporary contracts, can influence the perception of
psychosocial risks and therefore increase workerâs vulnerability to work-related stress and how the magnitude of this effect differs
between genders. Materials and Methods. 338 administrative technical workers (113 males and 225 females) were administered a
questionnaire, enquiring contract typology (permanent or temporary contracts), and the Health Safety Executive questionnaire
to assess work-related stress. The Health Safety Executive Analysis Tool software was used to process collected questionnaires
and theWilcoxon rank-sum test was used to evaluate the statistical significance of the differences obtained. Results. Workers with
temporary contracts obtained lower scores than workers with permanent contracts in all the domains explored by theHealth Safety
Executive Analysis questionnaire, statistically significant (P<0,05). The female workers obtained lower scores than male workers in
all domains explored by the Health Safety Executive questionnaire. Conclusions. Authors conclude that perception of psychosocial
risks can be influenced by job insecurity, in the form of temporary contracts, and increases workerâs vulnerability to work-related
stress and differs between genders
Quality of life in workers and stress: gender differences in exposure to psychosocial risks and perceived well-being
Background. Quality of working life is the result of many factors inherent in the workplace environment, especially in terms of
exposure to psychosocial risks. Objectives. The purpose of this study is to assess the quality of life with special attention to gender
differences. Methods. The HSE-IT questionnaire and the WHO-5 Well-Being Index were administered to a group of workers (74
males and 33 females). The authors also used Cronbachâs alpha test to assess the internal consistency of both questionnaires and the
MannâWhitney test to evaluate the significance of gender differences in both questionnaires. Results. The HSE-IT highlighted the
existence of work-related stress in all the population with a critical perception regarding the domain âRelationships.â Furthermore,
gender analysis highlighted the presence of two additional domains in the female population: âDemandâ ( = 0,002) and âSupport
from Managersâ ( = 0,287). The WHO-5 highlighted a well-being level below the standard cut-off point with a significant gender
difference ( = 0.009) for males (18, SD = 6) as compared to females (14, SD = 6,4). Cronbachâs alpha values indicated a high level of
internal consistency for both of our scales. Conclusions. The risk assessment of quality of working life should take into due account
the individual characteristics of workers, with special attention to gender
Investigando uma interrogação brasileira: relatando 16 casos de febre Q em Minas Gerais, Brasil
Q fever has been considered non-existing in Brazil where reports of clinical cases still cannot be found. This case-series of 16 patients is a result of a systematic search for such illness by means of clinical and serologic criteria. Serologic testing was performed by the indirect microimmunofluorescence technique using phase I/II C. burnetii antigens. Influenza-like syndrome was the most frequent clinical form (eight cases - 50%), followed by pneumonia, FUO (fever of unknown origin), mono-like syndrome (two cases - 12.5% each), lymphadenitis (one case - 6.3%) and spondylodiscitis associated with osteomyelitis (one case - 6.3%). The ages varied from four to 67 years old with a median of 43.5. All but one patient had positive serologic tests for phase II IgG whether or not associated with IgM positivity compatible with acute infection. One patient had both phase I and phase II IgG antibodies compatible with chronic Q fever. Seroconvertion was detected in 10 patients. Despite the known limitations of serologic diagnosis, the cases here reported should encourage Brazilian doctors to include Q fever as an indigenous cause of febrile illness.A febre Q continua sendo considerada inexistente no Brasil onde publicaçÔes de casos clĂnicos ainda nĂŁo sĂŁo encontrĂĄveis. Esta sĂ©rie de casos de 16 pacientes Ă© resultado de uma busca sistemĂĄtica para esta doença usando-se critĂ©rios clĂnicos e sorolĂłgicos. Os testes sorolĂłgicos foram realizados pela tĂ©cnica de microimunofluorescĂȘncia indireta utilizando-se antĂgenos de C. burnetii fase I e fase II. SĂndrome influenza sĂmile foi a forma clĂnica mais frequente (oito casos - 50%), seguida pela pneumonia, FOI (febre de origem indeterminada), sĂndrome mononucleose sĂmile (dois casos - 12,5% cada) e por fim linfoadenite (um caso - 6,3%) e espondilodiscite associada Ă osteomielite (um caso - 6,3%). As idades variaram de quatro a 67 anos com mediana de 43,5. Todos os pacientes, com exceção de um, tinham testes sorolĂłgicos positivos para IgG anti fase II, associado ou nĂŁo a IgM anti fase II, compatĂveis com infecção aguda. Um paciente tinha tanto anticorpos IgG anti fase I quanto anti fase II compatĂveis com febre Q crĂŽnica. SoroconversĂŁo foi detectada em 10 pacientes. A despeito das conhecidas limitaçÔes do diagnĂłstico sorolĂłgico os casos aqui relatados devem encorajar os mĂ©dicos brasileiros a incluir a febre Q como causa nativa de doença febril neste paĂs a ser pesquisada
Can a Humanoid Face be Expressive? A Psychophysiological Investigation
Non-verbal signals expressed through body language play a crucial role in multi-modal human communication during social relations. Indeed, in all cultures, facial expressions are the most universal and direct signs to express innate emotional cues. A human face conveys important information in social interactions and helps us to better understand our social partners and establish empathic links. Latest researches show that humanoid and social robots are becoming increasingly similar to humans, both esthetically and expressively. However, their visual expressiveness is a crucial issue that must be improved to make these robots more realistic and intuitively perceivable by humans as not different from them. This study concerns the capability of a humanoid robot to exhibit emotions through facial expressions. More specifically, emotional signs performed by a humanoid robot have been compared with corresponding human facial expressions in terms of recognition rate and response time. The set of stimuli included standardized human expressions taken from an Ekman-based database and the same facial expressions performed by the robot. Furthermore, participantsâ psychophysiological responses have been explored to investigate whether there could be differences induced by interpreting robot or human emotional stimuli. Preliminary results show a trend to better recognize expressions performed by the robot than 2D photos or 3D models. Moreover, no significant differences in the subjectsâ psychophysiological state have been found during the discrimination of facial expressions performed by the robot in comparison with the same task performed with 2D photos and 3D models
Soluble/MOF-Supported Palladium Single Atoms Catalyze the Ligand-, Additive-, and Solvent-Free Aerobic Oxidation of Benzyl Alcohols to Benzoic Acids
Metal single-atom catalysts (SACs) promise great rewards in terms of metal atom efficiency. However, the requirement of particular conditions and supports for their synthesis, together with the need of solvents and additives for catalytic implementation, often precludes their use under industrially viable conditions. Here, we show that palladium single atoms are spontaneously formed after dissolving tiny amounts of palladium salts in neat benzyl alcohols, to catalyze their direct aerobic oxidation to benzoic acids without ligands, additives, or solvents. With this result in hand, the gram-scale preparation and stabilization of Pd SACs within the functional channels of a novel methyl-cysteine-based metal-organic framework (MOF) was accomplished, to give a robust and crystalline solid catalyst fully characterized with the help of single-crystal X-ray diffraction (SCXRD). These results illustrate the advantages of metal speciation in ligand-free homogeneous organic reactions and the translation into solid catalysts for potential industrial implementation.This work was supported by the Ministero dellâIstruzione, dellâUniversitĂ e della Ricerca (Italy) and the MINECO (Spain) (Projects PID2019â104778GBâI00, CTQ 2017â86735âP, RTCâ2017â6331â5, Severo Ochoa program SEVâ2016â0683 and Excellence Unit âMaria de Maeztuâ CEX2019â000919âM). E.T. and M.M. thank MINECO and ITQ for the concession of a contract. D.A. acknowledges the financial support of the Fondazione CARIPLO/âEconomia Circolare: ricerca per un futuro sostenibileâ 2019, Project code: 2019â2090, MOCA and Diamond Light Source for awarded beamtime and provision of synchrotron radiation facilities and thanks Dr. Sarah Barnett and David Allan for their assistance at I19 beamline (Proposal No. MT18768-1). Thanks are also extended to the â2019 Post-doctoral Junior Leader-Retaining Fellowship, la Caixa Foundation (ID100010434 and fellowship code LCF/BQ/PR19/11700011â (J.F.-S.) and âLa Caixaâ scholarship (ID 100010434) LCF/BQ/DI19/11730029 (J.B.-S). E.P. acknowledges the financial support of the European Research Council under the European Unionâs Horizon 2020 research and innovation programme/ERC Grant Agreement No 814804, MOF reactors. J.O.-M. acknowledges the Juan de la Cierva program for the concession of a contract (IJC2018-036514-I). We gratefully acknowledge to ALBA synchrotron for allocating beamtime and CLĂSS beamline staff for their technical support during our experiment. The computations were performed on the Tirant III cluster of the Servei dâInformĂ tica of the University of Valencia.Peer reviewe
Interpreting Psychophysiological States Using Unobtrusive Wearable Sensors in Virtual Reality
One of the main challenges in the study of human be- havior is to quantitatively assess the participantsâ affective states by measuring their psychophysiological signals in ecologically valid conditions. The quality of the acquired data, in fact, is often poor due to artifacts generated by natural interactions such as full body movements and gestures. We created a technology to address this problem. We enhanced the eXperience Induction Machine (XIM), an immersive space we built to conduct experiments on human behavior, with unobtrusive wearable sensors that measure electrocardiogram, breathing rate and electrodermal response. We conducted an empirical validation where participants wearing these sensors were free to move in the XIM space while exposed to a series of visual stimuli taken from the International Affective Picture System (IAPS). Our main result consists in the quan- titative estimation of the arousal range of the affective stimuli through the analysis of participantsâ psychophysiological states. Taken together, our findings show that the XIM constitutes a novel tool to study human behavior in life-like conditions
Different biological and prognostic breast cancer populations identified by FDG-PET in sentinel node-positive patients: Results and clinical implications after eight-years follow-up
Abstract Background Sentinel node (SN) biopsy is the standard method to evaluate axillary node involvement in breast cancer (BC). Positron emission tomography with 2-(fluorine-18)-fluoro-2-deoxy-D-glucose (FDG-PET) provides a non-invasive tool to evaluate regional nodes in BC in a metabolic-dependent, biomolecular-related way. In 1999, we initiated a prospective non-randomized study to compare these two methods and to test the hypothesis that FDG-PET results reflect biomolecular characteristics of the primary tumor, thereby yielding valuable prognostic information. Patients and methods A total of 145 cT1N0 BC patients, aged 24â70 years, underwent FDG-PET and lymphoscintigraphy before surgery. SN biopsy was followed in all cases by complete axillary dissection. Pathologic evaluation in tissue sections for involvement of the SN and other non-SN nodes served as the basis of the comparison between FDG-PET imaging and SN biopsy. Results FDG-PET and SN biopsy sensitivity was 72.6% and 88.7%, respectively, and negative predictive values were 80.5% and 92.2%, respectively. A subgroup of more aggressive tumors (ER-GIII, Her2+) was found mainly in the FDG-PET true-positive (FDG-PET+) patients, whereas LuminalA, Mib1 low-rate BCs were significantly undetected ( p = 0.009) in FDG-PET false-negative (FDG-PETâ) patients. KaplanâMeier survival estimates after a median follow-up of more than 8 years showed significantly worse overall survival for FDG-PET+ patients in node-positive (N+) patients ( p = 0.035) as compared to N+/FDG-PETâ patients, which overlapped with survival curves of Nâ and FDG-PET+ or â patients. Conclusions Our findings suggest that FDG-PET results reflect intrinsic biologic features of primary BC tumors and have prognostic value with respect to nodal metastases. FDG-PET false negative cases appear to identify less aggressive indolent metastases. The possibility to identify a subgroup of N+ BC patients with an outcome comparable with Nâ BC patients could reduce the surgical and adjuvant therapeutic intervention
VI Seminario di studio. Salute globale e scenari attuali. Nuovi contributi di ricerca. Istituto Superiore di SanitĂ . Roma, 16 aprile 2015. Riassunti
Esiste un bisogno crescente di chiare evidenze scientifiche che possano supportare le politiche per la salute. Questo vale per una serie di aspetti che vanno dai protocolli diagnostici applicati alle malattie trasmissibili, agli approcci terapeutici, agli studi epidemiologici, alla definizione e identificazione dei determinanti della salute con partico
lare riguardo alle situazioni di grave diseguaglianza, alle contaminazioni ambientali, alla relazione tra malattia e diritti cosĂŹ come alla relazione tra malattia e diritto. Lâobiettivo del Dottorato di Ricerca in Malattie Infettive, Microbiologia e Scienze della Salute Ăš proprio quello di fornire momenti di crescita, finalizzati alla formazione di nuovi ricercatori, nel campo
delle malattie infettive, della microbiologia, della parassitologia, della sanitĂ pubblica e medicina sociale, nella medicina legale e nelle scienze forensi.
Lâobiettivo di questo sesto appuntamento, nellâambito della collaborazione tra Istituto Superiore di SanitĂ e lâUniversitĂ Ì Sapienza di Roma, con i dottorandi Ăš
proprio quello di fornire una cornice il piĂč possibile unitaria a un quadro complesso di ricerche di base e applicate nellâambito degli obiettivi del dottorato.There is a growing need for clear scientific evidence that can support health policies. This applies to a
number of issues including diagnostic protocols applied to communicable diseases, therapeutic approaches,
epidemiological studies, the definition and identification of the health determinants (with particular reference to
situations of severe inequality), environmental contamination, the relationship between disease and rights as
well as the relationship between disease and law. The objective of the PhD Program in Infectious Diseases,
Microbiology and Health Sciences is precisely to provide moments of intellectual growth, aimed at the trai
ning of new researchers in the field of infectious diseases, microbiology, parasitology, public health and social
medicine, in forensic medicine and forensic sciences. The objective of the sixth meeting with graduate
students, part of the collaboration between the Italian National Institute of Health, and the
Sapienza University of Rome, is precisely to provide a frame as unitary as possible to a complex picture of basic and applied
research within the objectives of the doctorat
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