1,553 research outputs found
High‐commitment HRM practices during the financial crisis in Portugal: Employees' and HR perspectives
Over the recent decades, organizations have had to face a number of major external shocks and crises. Acquiring a better understanding of how human resources are managed under such critical conditions constitutes the main purpose of this study. We conducted a study triangulating different sources (employees, HR managers, and secondary data) and types of data (quantitative and qualitative) to explore how employees in Portuguese organizations perceived the HR practices' implementation during the years of the financial crisis (2011–2014) and how HR managers explained it. Longitudinal evidence from 53 organizations attests to perceived decreasing trends, particularly in training and development and performance management. HR managers legitimize these trends, embracing conventions and revealing the impact of coercive and normative pressures. Our findings highlight the need for renewed attention to be paid to the contextual pressures on HR managers' decision-making and actions that could severely endanger their role as strategic partners and their embrace of sustainable HRM.info:eu-repo/semantics/publishedVersio
Rate-Control or Rhythm-Contol: Where do we stand?
Atrial fibrillation is the most common sustained rhythm disturbance and its prevalence is increasing worldwide due to the progressive aging of the population. Current guidelines clearly depict the gold standard management of acute symptomatic atrial fibrillation but the best-long term approach for first or recurrent atrial fibrillation is still debated with regard to quality of life, risk of new hospitalizations, and possible disabling complications, such as thromboembolic stroke, major bleeds and death. Some authors propose that regaining sinus rhythm in all cases, thus re-establishing a physiologic cardiac function not requiring a prolonged antithrombotic therapy, avoids the threat of intracranial or extracranial haemorrhages due to Vitamin K antagonists or aspirin. On the contrary, advocates of a rate control approach with an accurate antithrombotic prophylaxis propose that such a strategy may avoid the risk of cardiovascular and non cardiovascular side effects related to antiarrhythmic drugs. This review aims to explore the state of our knowledge in order to summarize evidences and issues that need to be furthermore clarified
Necessary work design characteristics for younger workers’ attitudes and behaviors
Managing younger workers in organizations requires motivating them to engage in positive attitudes and behaviors and refrain from negative ones. Based on needs and motives theories, work design characteristics can act as motivational factors with younger workers. Exploring which of the work characteristics are necessary, as opposed to sufficient, to achieve desired levels of younger workers’ positive and negative attitudes and behaviors, is of great importance for organizations considering their limited resources. Taking the Necessary Condition Analysis approach (necessary conditions are those whose absence guarantees the absence of the outcome) and collecting a sample of 165 employees under 40, five work design characteristics (i.e., autonomy, task significance, interdependence, peer support and supervisor support) were analyzed as possible necessary conditions for enabling daily positive (i.e., work engagement, crafting) and constraining daily negative (i.e., cynicism, and incivility) attitudes and behaviors. Based on our findings, task significance, supervisor and peer support are necessary conditions for work engagement among younger workers. To enable crafting among them, autonomy and supervisor support are necessary. Not only work design characteristics do not constrain negative outcomes, but interdependence (either received or initiated) even enables cynicism and incivility (for which also task significance is an enabler). This study contributes by conceptualizing work design characteristics as necessary motivational factors and empirically testing them using necessary condition analysis.info:eu-repo/semantics/publishedVersio
The effect of age on daily positive emotions and work behaviors
This study draws on socioemotional selectivity and person–job fit theories to investigate the emotional bases for age-related differences in daily task crafting and in-role performance. We tested a mediation model in which age is related to positive emotions that in turn predict task crafting and in-role performance. A total of 256 people working in multiple organizations participated in a 5-day diary study. Multilevel modeling showed that, at the person level of analysis, age is significantly and positively related to positive emotions and task crafting and, via crafting, to in-role performance. No significant mediation of high- and low-arousal positive emotions was found between age and task crafting. However, at the day level of analysis, high-arousal positive emotions are positively related to task crafting, and this in turn is positively related to in-role performance. These findings make important theoretical contributions to understanding within-person processes associated with employee age in addition to more traditional between-person factors. They also have implications for managing an age-diverse workforce by means of job crafting.info:eu-repo/semantics/acceptedVersio
Direct analysis of sterols from dried plasma/blood spots by an atmospheric pressure thermal desorption chemical ionization mass spectrometry (APTDCI-MS) method for a rapid screening of Smith-Lemli-Opitz syndrome.
Here is proposed a rapid and sensitive method involving atmospheric pressure thermal desorption
chemical ionization mass spectrometry (APTDCI-MS) for specific laboratory screening of the Smith–
Lemli–Opitz syndrome (SLOS), an inherited defect of cholesterol biosynthesis. Biochemical findings in
the blood of SLOS patients are low cholesterol (Chol), high 7- and 8-dehydrocholesterol (DHCs) levels
and high DHCs/Chol ratios. The APTDCI proposed method is able to ionize sterols for qualitative and
quantitative analysis directly from dried plasma/blood spots. Critical APTDCI parameters –
desolvation gas flow and temperature – were optimized analyzing Chol, 7-DHC and cholesteryl stearate
standards spotted onto a glass slide acquiring the full scan spectra in positive ion mode. Chol levels in
dried plasma spots of unaffected controls (n ¼ 23) obtained by the proposed method were compared
with those of the enzymatic method (y ¼ 0.9166x + 0.3811; r ¼ 0.8831) while Chol and DHCs of SLOS
patients (n ¼ 9) were compared with the gas chromatography flame ionization detection (GC-FID)
method (y ¼ 0.8214x + 0.7388; r ¼ 0.8288). The APTDCI-MS method is also able to differentiate
normal from SLOS samples directly analyzing whole blood and washed red cells spotted on paper. In
conclusion, the intrinsic analytical high-throughput of APTDCI-MS method for sterol analysis could
be useful to screen SLO syndrome
Relationship between blood remifentanil concentration and stress hormone levels during pneumoperitoneum in patients undergoing laparoscopic cholecystectomy
The effect of remifentanil on stress response to surgery is unclear. However, there are not clinical studies investigating the relationship between blood remifentanil concentrations and stress hormones. Therefore, the aim of the present study was to assess the association between blood remifentanil concentrations measured after pneumoperitoneum and cortisol (CORT) or prolactin (PRL) ratio (intraoperative/preoperative value), in patients undergoing laparoscopic cholecystectom
A comprehensive study of infrared OH prompt emission in two comets. I. Observations and effective g-factors
We present high-dispersion infrared spectra of hydroxyl (OH) in comets C/2000 WM1 (LINEAR) and C/2004 Q2 (Machholz), acquired with the Near Infrared Echelle Spectrograph at the Keck Observatory atop Mauna Kea, Hawaii. Most of these rovibrational transitions result from photodissociative excitation of H_2O giving rise to OH "prompt" emission. We present calibrated emission efficiencies (equivalent g-factors, measured in OH photons s^(-1) [H_2O molecule]^(-1)) for more than 20 OH lines sampled in these two comets. The OH transitions analyzed cover a broad range of rotational excitation. This infrared database for OH can be used in two principal ways: (1) as an indirect tool for obtaining water production in comets simultaneously with the production of other parent volatiles, even when direct detections of H_2O are not available; and (2) as an observational constraint to models predicting the rotational distribution of rovibrationally excited OH produced by water photolysis
Cometary diversity and cometary families
Comets are classified from their orbital characteristics into two separate
classes: nearly-isotropic, mainly long-period comets and ecliptic, short-period
comets. Members from the former class are coming from the Oort cloud. Those of
the latter class were first believed to have migrated from the Kuiper belt
where they could have been accreted in situ, but recent orbital evolution
simulations showed that they rather come from the trans-Neptunian scattered
disc. These two reservoirs are not where the comets formed: they were expelled
from the inner Solar System following interaction with the giant planets. If
comets formed at different places in the Solar System, one would expect they
show different chemical and physical properties. In the present paper, I review
which differences are effectively observed: chemical and isotopic compositions,
spin temperatures, dust particle properties, nucleus properties... and
investigate whether these differences are correlated with the different
dynamical classes. The difficulty of such a study is that long-period,
nearly-isotropic comets from the Oort cloud are better known, from Earth-based
observations, than the weak nearly-isotropic, short-period comets. On the other
hand, only the latter are easily accessed by space missions.Comment: Proceedings of the XVIIIemes Rencontres de Blois: Planetary Science:
Challenges and Discoveries, 28th May - 2nd June 2006, Blois, Franc
- …