Influence of antifreeze protein III on canine sperm cryopreservation.

Sperm cryopreservation is crucial in reproductive biotechnology; however, the longevity of frozen and thawed semen is limited by the deterioration of sperm cell integrity. This study aimed to examine the effects of adding antifreeze protein III (AFP III) to the diluent, using samples from eight healthy mature dogs. The ejaculates were divided into aliquots and diluted with a standard Tris-fructose-egg yolk extender containing AFP III at concentrations of 0, 0.

The potential of Gol-e-Gohar iron ore mine airborne dust to induce toxicity in human lung A549 cells.

Airborne particulates in iron ore mining are a risk factor for adverse human lung effects. In this study, fine particulates deposited on surfaces of about 1.5 m above the ground and 6 meters from a milling unit of the Gol-e-Gohar iron ore mine were collected through wipe sampling.

Supplementation of Rooster Semen Extender with Aqueous Extract of for a Long Time Preservation by Low Temperature.

The peroxidation of spermatozoa membrane phospholipids is a primary cause of irreversible changes in the preservation of avian semen. To address this issue, the objective of the present study was to assess the potential of extracts in protecting avian spermatozoa during prolonged storage. Gas chromatography-mass spectroscopic techniques were employed to evaluate the bioactive compounds present in the aqueous and ethanolic extracts obtained from the aerial parts and roots of .

Evaluation of Ethanolic Extract of and Trehalose on Cryopreserved Goat Epididymal Spermatozoa.

The purpose of this study, carried out in two experiments, was to investigate the antioxidant effect of in Experiment 1, and trehalose in Experiment 2 in the freezing extender, on the quality of frozen-thawed goat epididymal spermatozoa. Sperm samples were added to based egg-yolk Tris-extender containing experimental treatments. The first experimental treatments included the following: an extender of the control group without additive and extender containing 50, 100, or 150 µg/mL of ethanolic extract (PEE1, PEE2, and PEE3, respectively).

Unsteady CFD simulation of a rotor blade under various wind conditions.

Wind and gusts can significantly impact the performance of rotors and turbines. The transient behavior of the rotor should be carefully examined to account for these effects. This paper investigates the unsteady aerodynamic characteristics of a rotor blade under different wind conditions, such as direction, speed, and angle.

The Influence of Male Biostimulation on Cloacal Anatomy and Egg-Laying Behavior in Young Female Muscovy Ducks ().

The importance of Muscovy ducks in industrial poultry production is growing; however, little is known about the physiology of their reproductive cycles. This study investigated the influence of male biostimulation on female ducks before the commencement of the laying phase. A total of 30 muscovy ducks, hatched in the same year at 289-341 days of age, were divided into two groups of 15 birds each and kept with and without contact with a male duck until the day of first egg-laying-319 ± 14 and 335 ± 13, respectively.

Learning from an experience, challenges and approaches in the workplace during COVID-19 pandemic: a content analysis of international documents.

Background: This study aims to investigate international measures for pandemic control in the workplace based on guidelines from international organizations to learn from their experiences.

Methods: We conducted a qualitative study using content analysis. The search method involved reviewing published guidelines on preventing and responding to the COVID-19 pandemic in workplaces.

Exploring drivers of women's well-being in hospitals: mapping the landscape.

Background And Purpose: The workplace plays a key role in impacting the health and well-being of employees at various levels, including physical, psychological, and social aspects of health. This study aims to identify the drivers of a healthy environment that promotes the well-being of women employed in hospitals.

Materials & Methods: This qualitative study used purposive sampling to recruit a total of 48 working women across a diverse range of participants with different job categories and socio-demographic statuses.

Correlation of Work Fatigue and Mental Workload in Train Drivers: A Cross-sectional Study.

Background: Evidence suggests that train drivers experience a high level of fatigue and mental workload. The present study aimed to assess overall, physical, and mental fatigue levels and their correlations with the mental workload in the metro train operation. A cross-sectional study.

Executive and hierarchical models for participatory response to health emergencies in the workplace: Lessons from COVID-19.

Introduction: Workplaces are high-risk environments for epidemic transmission, and the COVID-19 pandemic has highlighted the significant impacts that health emergencies can have on both the healthcare system and the economy. This study presents executive and hierarchical models for participatory response to health emergencies in the workplace, with a focus on COVID-19.

Methods: The study was conducted in three phases.

Exploration roles and responsibilities of trade unions in preventing and responding to emergencies against epidemics: The case of COVID-19.

Background And Aim: The coronavirus disease 209 (COVID-19) pandemic has been affecting various strata of society including different guilds. Each of these segments has its role to play in controlling epidemics. Accordingly, this study aimed to explore trade unions' roles and responsibilities in the prevention and emergency response to epidemic, including the COVID-19 pandemic.

Explaining the role and responsibilities of the National Anti-Coronavirus Headquarters in prevention and emergency response to pandemics in the workplace: a qualitative study on COVID-19 experience in Iran.

Background: In recent years, the Coronavirus disease 2019 (COVID-19) have greatly affected the safety of life and the economy. Taking rapid measures to reduce these problems requires effective and efficient decisions by various departments and headquarters in a country. The purpose of this study was to investigate the role and responsibilities of the National Anti-Corona Headquarters (NACH) in the workplace during the pandemic.

Protective effects of different doses of MitoQ separately and combined with trehalose on oxidative stress and sperm function of cryopreserved Markhoz goat semen.

The mitochondria-targeted antioxidant MitoQ has been regarded as an effective antioxidant agent against cryo-induced oxidative cellular damage. This study aimed to evaluate the use of different doses of MitoQ combined with trehalose to minimize mitochondrial impairment and oxidative stress during sperm cryopreservation of Markhoz goat. For this, semen samples (n = 50) were collected by electroejaculation every 5 days from 5 bucks in 10 replicates.

Use of Purslane () Extracts and Cysteine in Diluents to Improve the Cryopreserved Quality of Goat Sperm.

Highlights Using cysteine and purslane extracts in extenders improved significantly the post-thaw sperm characteristics. Sperm viability, DNA integrity, and mitochondrial activity demonstrate an improvement in post-thaw sperm. Malondialdehyde production was decreased based on the positive effects of treated extenders.

Determining the characteristics of a mental supportive workplace according to female hospital staff in one of Tehran hospitals: A qualitative study.

Background: Health-care workers are exposed to complex types of health and safety hazards. A high percentage of hospital staff in Iran are women, who in addition to heavy and stressful hospital work, also carry the burden of the family roles. It is in these circumstances that creating a supportive environment for women is of particular importance.

Effects of Antifreeze Protein Type I and Glycerol in Diluents on Cryopreserved Goat Epididymal Sperm.

The effect of antifreeze protein (AFP) as a cryoprotectant used in different concentrations of glycerol on post-thaw quality of epididymal sperm was investigated. Sperm were isolated from 50 testicles, obtained from 25 healthy mature goat bucks, with progressive motility >80%, and total morphological abnormalities <10% were pooled in each replication. The semen samples were diluted with Tris-citrate-fructose-soybean lecithin extender containing different concentration of AFP [0 μg/mL (A0), 5 μg/mL (A5), 10 μg/mL (A10)].

Psychosocial issues and sleep quality among seafarers: a mixed methods study.

Background: Seafarers, especially those working for a prolonged period of time, are exposed to a high number of social, psychological and physical stressors including irregular working hours.

Aim: This study aims to identify important aspects of Asian seafarers' psychosocial wellbeing and quality of sleep that could affect safety and health of the seafarers in long voyage tankers.

Methods: In this mixed method study, psychological health issues were investigated through semi-structured interviews with 17 Asian male seafarers.

Application of the theory of planned behavior in the design and implementation of a behavior-based safety plan in the workplace.

Background: Many accidents in industries occur due to unsafe practices and unsafe conditions. Occupational accidents endanger the health of workers and impose excessive costs on the employers. This study was designed and conducted to evaluate and implement a behavior-based safety approach in an industrial workplace based on the theory of planned behavior.

Protective Effects of Trehalose and Pentoxifylline on Goat Sperm Exposed to Chilling-Freezing Process.

Freezing of sperm is known as an important part of assisted reproduction. However, many studies have illustrated that cryopreservation negatively affects the quality and fertility rate of sperm. This study aimed to evaluate the effects of trehalose and pentoxifylline (PTX) in diluents on cooled and frozen-thawed Markhoz goat sperm.

People's Voice and Civil Society Participation as a Core Element of Universal Health Coverage Reforms: Review of Experiences in Iran.

Health governance challenges can make or break universal health coverage (UHC) reforms. One of the biggest health governance challenges is ensuring meaningful participation and adequately reflecting people's voice in health policies and implementation. Recognizing this, Iran's Health Transformation Plan (HTP) lays out the country's blueprint for UHC with an explicit emphasis on the 'socialization of health.

Letrozole, an aromatase inhibitor, improves seminal parameters and hormonal profile in aged endangered Markhoz bucks.

Objective: Letrozole, a potent aromatase inhibitor, is known to have the potential to modify male reproductive function by altering sex hormone levels. This study aimed to evaluate the semen and testicular characteristics and hormonal profile of aged Mrakhoz bucks (Capra hircus) treated with letrozole.

Methods: Twelve Markhoz male goats, aged between 4.

The components of workplace violence against nurses from the perspective of women working in a hospital in Tehran: a qualitative study.

Background: Based on the World Health Organization (WHO), workplace violence can affect events where employees are abused, attacked or threatened in their workplace, and it also has some consequences such as safety, welfare, and health. Like other types of violence, workplace violence and aggression are an increasing phenomenon. Moreover, workplace violence not only disrupts interpersonal and organizational relationships, but it also impairs the persons self-esteem and affects their physical and mental health and well-being.

Molecular mechanisms of vitamin D plus Bisphenol A effects on adipogenesis in human adipose-derived mesenchymal stem cells.

Background: Obesity is considered a major health concern and mounting evidence suggests that the exposure to environmental endocrine disruptors, including Bisphenol-A (BPA), may enhance the risk to develop the disease. Moreover, growing documents propose that the vitamin D may contribute to adipogenic signaling and lipid accumulation during adipocyte differentiation. We focused on the molecular mechanism of vitamin D and BPA in human adipose-derived mesenchymal stem cells (hADMSCs) which vitamin D and BPA may influence adipose tissue development and function.

1,25-Dihydroxyvitamin D3 modulates adipogenesis of human adipose-derived mesenchymal stem cells dose-dependently.

Purpose: 1,25-dihydroxyvitamin D3 may regulate adipogenesis in adipocytes in-vitro, but little is known about possible molecular mechanisms related to the inhibitory effect of 1,25-dihydroxyvitamin D3 on adipogenesis in humans҆ adipose tissue.

Methodology: In this study, human adipose-derived mesenchymal stem cells (hASCs) were cultured for 14 days in adipogenic differentiation media containing concentrations of 1,25-dihydroxyvitamin D3 (10-10 M). The extent of adipogenic differentiation in ASCs was assessed by Oil Red O staining and quantitative polymerase chain reaction (PCR) to determine expression levels of key adipogenic markers.