Experiencing male infertility: A review of the qualitative research literature

This article examines the qualitative research literature that exists in relation to men’s experiences of male infertility. Since men have often been marginalized in the realm of reproduction, including academic research on infertility, it is important to focus on any qualitative research that gives voices to male perspectives and concerns. Given the distress documented by studies of infertile women, we focus in particular on the emotive responses and lived experiences of men in relation to infertility. In this article then, we present an analysis of the core themes across 19 qualitative articles, which include “infertility as crisis”; “emoting infertility- men as “being strong”’ “infertility as a source of stigma”; and the “desire for fatherhood.” In light of these insights, we identify key areas for future research and development including men’s emotional responses to infertility, how men seek support for infertility, the intersection between masculinity and infertility, the relationship between the desire to father and infertility, and the outcomes of infertility for men in terms of other aspects of their lives. We suggest that such research would facilitate making the experiences of men more central within our understandings of infertility within a field that has primarily been female focused

Factors affecting bankruptcy : the case of Malaysia / Hilwa Hilmy, Shaliza A. Mohd Z and Norasyikin A. Fahami

This paper intends to determine the factors affecting bankruptcy cases in Malaysia. The data ranges from 1999 to 2012 on a yearly basis consist of the independent variables such as non-performing loans, unemployment, per capita income and bankruptcy cases as dependent variable. The result shows that non-performing loan and unemployment has statistical significant relationship towards bankruptcy case in Malaysia. However, per capita income has no statistical relationship towards bankruptcy case in Malaysia. The results suggest that Malaysians fails to repay loan due to inability to settle their debt and also loss of work or being unemployed. This research is done in the context of Malaysia as single entity instead of a pool of countries or states/counties and the variables are all statistically analyzed. Also, the current research gives perspective and insight from academic point of view to assist government in their decision making as far as bankruptcy is concern

The dynamic nature of Cu sites in Cu-SSZ-13 and the origin of the seagull NOx conversion profile during NH₃-SCR

Cu-Zeolites with chabazite structure show a peculiar dual-maxima NO conversion profile, also known as a seagull profile, during the selective catalytic reduction by ammonia. In order to understand the origin of this behavior, systematic catalytic tests and operando spectroscopy were applied to derive structure–performance relationships for Cu-SSZ-13 catalysts with low and high Cu loading. Operando X-ray absorption, X-ray emission and in situ electron paramagnetic resonance spectroscopy measurements, including novel photon-in/photon-out techniques, demonstrated the interconversion of isolated Cu sites and dimeric bis(μ-oxo) Cu species, the former occurring via formation of ammonia Cu2+/Cu+ complexes and the latter in an oxidizing gas mixture. The formation of dimeric Cu+–O2–Cu+ species by involving Cu sites in close vicinity was linked to the high activity at low temperatures of the highly loaded Cu-SSZ-13 sample. In contrast, the isolated Cu sites present at very low Cu loadings are strongly poisoned by adsorbed NH3. The activity decrease around 350 °C that gives rise to the seagull shaped NO conversion profile could be attributed to a more localized structure of mono(μ-oxo)dicopper complexes. Above this temperature, which corresponds to partial NH3 desorption from Cu sites, the isolated Cu sites migrate to form additional dimeric entities thus recovering the SCR activity

The dynamic nature of Cu sites in Cu-SSZ-13 and the origin of the seagull NOx conversion profile during NH3-SCR

Cu-Zeolites with chabazite structure show a peculiar dual-maxima NO conversion profile, also known as a seagull profile, during the selective catalytic reduction by ammonia. In order to understand the origin of this behavior, systematic catalytic tests and operando spectroscopy were applied to derive structure–performance relationships for Cu-SSZ-13 catalysts with low and high Cu loading. Operando X-ray absorption, X-ray emission and in situ electron paramagnetic resonance spectroscopy measurements, including novel photon-in/photon-out techniques, demonstrated the interconversion of isolated Cu sites and dimeric bis(μ-oxo) Cu species, the former occurring via formation of ammonia Cu2+/Cu+ complexes and the latter in an oxidizing gas mixture. The formation of dimeric Cu+–O2–Cu+ species by involving Cu sites in close vicinity was linked to the high activity at low temperatures of the highly loaded Cu-SSZ-13 sample. In contrast, the isolated Cu sites present at very low Cu loadings are strongly poisoned by adsorbed NH3. The activity decrease around 350 °C that gives rise to the seagull shaped NO conversion profile could be attributed to a more localized structure of mono(μ-oxo)dicopper complexes. Above this temperature, which corresponds to partial NH3 desorption from Cu sites, the isolated Cu sites migrate to form additional dimeric entities thus recovering the SCR activity

Passiflora incarnata attenuation of neuropathic allodynia and vulvodynia apropos GABA-ergic and opioidergic antinociceptive and behavioural mechanisms

Background: Passiflora incarnata is widely used as an anxiolytic and sedative due to its putative GABAergic properties. Passiflora incarnata L. methanolic extract (PI-ME) was evaluated in an animal model of streptozotocininduced diabetic neuropathic allodynia and vulvodynia in rats along with antinociceptive, anxiolytic and sedative activities in mice in order to examine possible underlying mechanisms. Methods: PI-ME was tested preliminary for qualitative phytochemical analysis and then quantitatively by proximate and GC-MS analysis. The antinociceptive property was evaluated using the abdominal constriction assay and hot plate test. The anxiolytic activity was performed in a stair case model and sedative activity in an open field test. The antagonistic activities were evaluated using naloxone and/or pentylenetetrazole (PTZ). PI-ME was evaluated for prospective anti-allodynic and anti-vulvodynic properties in a rat model of streptozotocin induced neuropathic pain using the static and dynamic testing paradigms of mechanical allodynia and vulvodynia. Results: GC-MS analysis revealed that PI-ME contained predominant quantities of oleamide (9-octadecenamide), palmitic acid (hexadecanoic acid) and 3-hydroxy-dodecanoic acid, among other active constituents. In the abdominal constriction assay and hot plate test, PI-ME produced dose dependant, naloxone and pentylenetetrazole reversible antinociception suggesting an involvement of opioidergic and GABAergic mechanisms. In the stair case test, PI-ME at 200 mg/kg increased the number of steps climbed while at 600 mg/kg a significant decrease was observed. The rearing incidence was diminished by PI-ME at all tested doses and in the open field test, PI-ME decreased locomotor activity to an extent that was analagous to diazepam. The effects of PI-ME were antagonized by PTZ in both the staircase and open field tests implicating GABAergic mechanisms in its anxiolytic and sedative activities. In the streptozotocin-induced neuropathic nociceptive model, PI-ME (200 and 300 mg/kg) exhibited static and dynamic anti-allodynic effects exemplified by an increase in paw withdrawal threshold and paw withdrawal latency. PI-ME relieved only the dynamic component of vulvodynia by increasing flinching response latency. Conclusions: These findings suggest that Passiflora incarnata might be useful for treating neuropathic pain. The antinociceptive and behavioural findings inferring that its activity may stem from underlying opioidergic and GABAergic mechanisms though a potential oleamide-sourced cannabimimetic involvement is also discussed

The effect of participatory care model on sleep quality and quality of life in cardiovascular patients

Background: In the last century, according to previous studies, aging has led to a growing trend. Among the problems created for this group, it is possible to increase the number of cardiovascular patients. Participatory care model is one of the nursing models that has been used in various studies and has had positive effects. Considering that this model is a native model of Iran. For this reason, the researcher conducted a study to determine the impact of participatory care model on the quality of sleep and quality of life in patients with cardiovascular disease. Materials and method: The present study was a quasi-experimental study in patients with cardiovascular diseases hospitalized in Ilam in 2016. PCM was implemented for patients. After completing the training provided to the patients according to the model of PCM, the collected questionnaires were entered into the SPSS software. Then the data entered was analyzed. Results: According to the findings, after implementing the PCM, the status of quality of sleep and quality of life of the patients increased significantly. Conclusions: It seems that in previous studies, the implementation of this model has been very useful and effective. © 2018, Indian Journal of Forensic Medicine and Toxicology. All rights reserved

Modeling and simulation of vehicle steer by wire system

The steer by wire system offer many benefits compare with conventional steering system. By eliminating the mechanical linkage of column shaft between the steering wheel and the front wheel system, it gives more space efficiency, fuel efficiency in term of functionality and at the same time present challenges to the designer. Many researchers have done their control strategy on steer by wire system in past recent years. This paper presents the control strategy for the wheel synchronization and the variable steering ratio. Mathematical modeling was created for steering wheel and front wheel model. The steering wheel and the front wheel system is control using PID controller and introduce a new feedforward variable steering ratio based on under propensity equation method. A simulation was made and compared in order to analysis the system performance

PREVALENCE OF SPINAL FRACTURES AND ORTHOPEDIC FRACTURES CAUSED BY ROAD TRAFFIC INJURIES

Background: Road traffic injures (RTIs) are the third leading cause of death in the world after heart diseases and cancer. The aim of the present study was to determine the prevalence of spinal cord fractures (SCF) and other general orthopedic fractures (GOF) caused by road traffic injuries.Materials & Methods: This was a retrospective cross sectional study performed on patients with RTIs-related fractures or SCIs from January 2020 to January 2021.The study population consisted of the medical records of patients admitted to Imam Khomeini Hospital with a diagnosis of GOFs or SCFs. The participants were included in the study by census method. Inclusion criteria included RTIs-related orthopedic fractures or SCIs. The data was analyzed using the SPSS 16 software.Results: The study result showed, that the prevalence of two types of fracture in patients was 9.33. Also, the prevalence of spinal cord fractures was in the form of Multiple spinal levels with a rate of 88 (32.6) and the lowest rate was in the Dorsal spine area with a rate of 38 (14.1). Regarding general orthopedic fractures, the result showed Multiple Orthopedic regions with a rate of 67 (24.8) and the lowest rate was in the Pelvis region with a rate of 29 (10.7).Conclusions: The prevalence of spinal cord and general orthopedic fractures in the examined patients was high, so it is necessary to take corrective measures to prevent traffic accidents