Does the Career Adaptation Process Change as a Function of an Employee\u27s Age or Employment Gaps? An Investigation of Relationships Among Personal Resources, Contextual Factors, Coping Behaviors, and Career Success

The goal of the current research was to enhance understanding of the career adaption process by developing and testing a new psychological framework by integrating three contemporary career theories (i.e., Protean, Boundaryless, and Social Cognitive Career (SCCT) theories). All of these career theories emphasize adaptability and agency as central constructs and stress career self-management as part of having a contemporary mindset because taking control of your career is important. To understand the adaptation process, antecedents and consequences of job-related coping behaviors, which are defined as cognitive and behavioral efforts to manage specific external and/or internal demands, were investigated. The model developed in this research depicts a complex process showing how personal resources (i.e., social and psychological capital) and contextual factors (i.e., organizational support for career management and labor market conditions) relate to career outcomes (e.g., perceived career success) and employment quality (i.e., job satisfaction and commitment). Also, the frequencies of job-related coping behaviors (e.g., information seeking) were predicted to mediate the relationships of resources and contextual factors with employment quality, and employees’ age and prior employment gaps were predicted to moderate use of coping behaviors. The proposed relationships were tested using a repeated measures design by collecting data three times, two months apart. The results showed that perceived organizational support for career development predicted employees’ perceived and objective career success. Moreover, organizational career support and protean mindset were the strongest predictors of frequencies of coping behaviors. Although age did not function as a moderating variable in most of the tested relationships, the number of employment gaps that individuals experienced in the past was an important moderator in the relationships between personal resources and coping behaviors. One of the main contributions of the study was developing and testing a new, more comprehensive model which integrated contemporary career theories. The results contribute to both theory and practice by testing alternative constructs and clarifying relationships. Specifically, among the variables investigated, protean mindset was related to coping behaviors, perceived career success, and employment quality, suggesting that those willing to proactively navigate their careers are likely to use active coping behaviors and achieve perceived career success. Another important contribution is the finding that the process of adaptation was not different for older workers compared to younger ones which contradicts prior research and theories. However, the number of employment gaps was an important moderator of several relationships, which is consistent with boundaryless career theory’s proposal that career advancement requires experiencing more than a single employer and organization. Moreover, the study provided insights about which resources were better predictors of career outcomes and clarified relationships to career success. Taken together, the findings provide important empirical support and also extend theoretical ideas from SCCT’s unified view on effects of cognitive, behavioral, and environmental factors. Specifically, the study suggests that employees\u27 path to career success involves a complex function of many factors, including their career mindset, personal characteristics, social network, contextual factors, and frequencies of coping behaviors

FMR Study of Co/Ti Bilayer Thin Films

. We focused on the interaction between two ferromagnetic cobalt layers through a non-magnetic titanium layer. The magnetic properties of the structure were characterized by ferromagnetic resonance technique (FMR). The data were collected as a function of non-magnetic titanium layer thickness. Co/Ti multilayer (Ti (50 {\AA})/Co(45 {\AA})/Ti(2-40 {\AA})/Co(40 {\AA})/Ti(100 {\AA}))films were grown onto naturally oxidized p-type single crystal Si (100) substrate at UHV condition with magnetron sputtering system at room temperature. The thickness of Ti spacer layer ranges from 2 to 40 {\AA} with 2 {\AA} steps. We did not observe usual optic and acoustic modes; instead we had two broad overlapped peaks for the films ranged from 6 {\AA} to 40 {\AA}. One interesting result was the high anisotropic resonance field values for these films. Exchange coupling between ferromagnetic layers causes shift on resonance field values but these shifts in our samples were much larger than expected. This large anisotropic behavior is not clear at the moment. Our theoretical model was not able to determine a value for the exchange coupling parameter. One reason can be the close thickness values for Co sublayers. The other reason can be the Ti non-magnetic layer. If titanium did not grow layer by layer on cobalt, the cobalt ferromagnetic layers may behave as a single layer. As a result one cannot observe exchange interaction between ferromagnetic layers through non-magnetic spacer.Comment: 6 pages, 5 figure

Caenorhabditis Elegans and Angiogenesis

DergiPark: 541687tmsjAbstract: Angiogenesis is sprouting of new capillaries from already existing ones. It is a dynamic process that can be seen in every phase of human life. It is among the dynamic mechanisms of both physiological and pathological processes. Vascular endothelial growth factor is one of the many molecules that play a role in angiogenesis. Vascular endothelial growth factor is released specifically to the endothelium. It regulates mitogenesis, vascular tone, vascular permeability and vasodilatation in the vascular endothelium. Caenorhabditis elegans is a nematode used to detect and screen the developmental processes and genetic mutations. It is appropriate to study at the organism level to isolate cells and to demonstrate intercellular interactions in vivo. Polyvinyl fluoride-1 is a molecule that plays a role in the neural development of Caenorhabditis elegans. In addition, the polyvinyl fluoride-1 molecule is told to be effective in angiogenesis. Studies have shown that polyvinyl fluoride-1 binds to vascular endothelial growth factor receptor-1 and vascular endothelial growth factor receptor-2, but not to vascular endothelial growth factor receptor-3 and platelete derivated growth factor receptor ?. In the research of human umbilical vein endothelial lines, it was observed that polyvinyl fluoride-1 induced angiogenesis and vascular tube formation. These results suggest that Caenorhabditis elegans may have a very important role in vascular endothelial growth factor studies. Caenorhabditis elegans model is used in many scientific areas such as aging, nervous system and genetic changes. However, only a few laboratories around the world studied the Caenorhabditis elegans angiogenesis model. Besides, this model is not currently used in Turkey. This provides a great advantage in terms of the utilization of this model in angiogenesi

Probing antiferromagnetism in NiMn/Ni/(Co)/Cu3Au(001) single-crystalline epitaxial thin films

Antiferromagnetism of equi-atomic single-crystalline NiMn thin film alloys grown on Ni/Cu3Au (001) is probed by means of magneto-optical Kerr effect (MOKE). Thickness-dependent coercivity (HC) enhancement of polar MOKE measurements in NiMn/Ni/Cu3Au(001) shows that ~7 atomic monolayers (MLs) NiMn order antiferromagnetically at room temperature. It is found that NiMn can couple to out-of-plane (OoP) as well as in-plane (IP) magnetized Ni films, the latter stabilized by Co under-layer deposition. The antiferromagnetic (AFM) ordering temperature (TAFM) of NiMn coupled to OoP Ni is found to be much higher (up to 110K difference) than in the IP case, for similar interfacial conditions. This is attributed to a magnetic proximity effect in which the ferromagnetic (FM) layer substantially influences TAFM of the adjacent AFM layer, and can be explained by either (i) a higher interfacial coupling strength and/or (ii) a thermally more stable NiMn spin structure when coupled to Ni magnetized in OoP direction than in IP. An exchange-bias effect could only be observed for the thickest NiMn film studied (35.7 ML); the exchange- bias field is higher in the OoP exchange-coupled system than in the IP one, possibly due to the same reason/s

The Effects of Acyclovir on Angiogenesis in Chick Chorioallantoic Membrane Model

DergiPark: 1020964tmsjAims: This study aims to reveal the effects of acyclovir on angiogenesis and to assess the experimental doses. Methods: In the study, the chick chorioallantoic membrane model was used as an experimental model. Forty fertilized eggs were kept at 85-90% relative humidity, below 37°C until the fifth day post-fertil- ization, when the vessels in the chick chorioallantoic membrane model appeared and the drugs were applied. Four different concentrations of acyclovir were chosen to determine the mode of action and dose dependence: 3.55 mg/mL, 7.1 mg/mL, 14.2 mg/mL, and 28.4 mg/mL. Each of the 1 mL total acyclovir concentrations were applied to the chick chorioallantoic membrane surfaces. The chick chorioallantoic membranes treated with sterile distilled water were designated as controls. Eight eggs were used for each test group. After applying the drug, all the eggs were covered with transparent tape and kept under the same conditions throughout the experiment. The results were evaluated 48 hours after the drugs were administered and the results were recorded with a digital camera. Results: In our study, it was observed that 3.55 mg/mL acyclovir concentration shows the reduced density of capillaries around the pellet and no change in the number of capillaries. Both 7.1 mg/mL and 14.2 mg/mL concentrations of acyclovir caused a local reaction that was restricted to the membrane and it was attributed to local crystallization reaction. The concentration of 28.4 mg/mL had a toxic effect on the eggs. Conclusion: In this study, it was found that acyclovir has a very weak anti-angiogenic effect dose-dependently at the concentrations used. Considering that an observational model was used in our study, quantitative studies are needed for assessing anti-angiogenic effects in the future. There is also a need for further studies to elucidate the effects of acyclovir on vascular endothelial growth factor level and which stage of the angiogenesis-related process it is specifically effective on

Influence of NixMn1−x thickness and composition on the Curie temperature of Ni in NixMn1−x/Ni bilayers on Cu3Au(001)

We present a magneto-optical Kerr effect study of epitaxial bilayers consisting of Ni and NixMn1−x on Cu3Au(001). The bottom Ni layer, the NixMn1−x layer thickness and its chemical composition were changed and the Curie temperature of the system was determined. We focused on two different regimes of NixMn1−x composition, namely a Mn-rich with x between 0.25 and 0.5, and a Ni-rich with x around 0.7. In these two composition ranges, a NixMn1−x overlayer exhibits a different effect on the Curie temperature of the Ni layer. While Mn-rich NixMn1−x layers reduce the Curie temperature of the Ni underlayer, Ni-rich NixMn1−x layers enhance the Curie temperature with respect to the pure Ni film. This is attributed to changes in the effective thickness of the Ni layer by exchange interactions with the NixMn1−x overlayer

The structural and electrical characterization of europium sulfide thin films prepared with E-beam evaporation

In this study, EuS thin films with varying thicknesses (15, 25, and 50 nm) were deposited onto a Si/SiO2 substrate using e-beam evaporation. Subsequently, two Ag contact electrodes with a 0.2 mm spacing were prepared via thermal evaporation using a shadow mask. To investigate the influence of film thickness and temperature on the electrical properties of EuS thin films, current-voltage (I–V) measurements were performed in a temperature range of 300–433 K for a voltage range of −2 V to +2 V. The I–V characteristics exhibited a temperature-dependent behavior, particularly showing an increase in current with rising temperature in the forward bias region. Furthermore, an improvement in the Schottky behavior was observed with increasing EuS film thickness. Additionally, the AC electrical and dielectric properties of the EuS thin film were examined in a frequency range of 4 Hz–8 MHz. Capacitance, conductance, impedance, and the Cole–Cole characteristic of EuS were analyzed in detail with respect to frequency, temperature, and film thicknesses