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( Sabina Bhandari ),( Jayaswori Sharma ),( Sarbesh Rizal ),( Young-joo Yi ),( Gaurishankar Manandhar ) 한국축산학회(구 한국동물자원과학회) 2021 한국축산학회지 Vol.63 No.1
Several herbs including Artemisia are known to possess conceptive property. In the present study, mouse spermatozoa were incubated with ethanol extract of Artemisia vulgaris leaves. The effect of extract on acrosome exocytosis was studied by labeling spermatozoa with fluorescein isothiocyanate (FITC) peanut agglutinin and by staining with Coomassie blue. Viability and membrane integrity were studied by Trypan-blue staining and hypo-osmotic swelling test. Artemisia extract at very low concentration caused precocious acrosome reaction and loss of sperm viability. Acrosome reaction increased remarkably from 22.63% to 88.42% with increasing extract concentration from 0 to 2,000 μg/mL. However, the viability loss of spermatozoa was increased from 11.71% in control to 63.73% in samples treated, evaluated by Trypan-blue staining method. Membrane damage caused by the extract, evaluated by hypo-osmotic swelling test was even low, ranging from 2.27% to only 24.23%. These results indicate that Artemisia extract might block fertilization by causing precocious acrosome exocytosis in spermatozoa. A direct contraceptive effect was tested by injecting the plant extract into the vagina of female mice and then allowing them to mate with normal males. The treated female mice delivered significantly fewer litters in comparison to the control.
Institutional Arrangements to Address Violence against Women in Bangladesh
Sabina SULTANA 이화여자대학교 아시아여성학센터 2015 이화여자대학교 아시아여성학센터 학술대회자료집 Vol.2015 No.1
Violence against women is pandemic in Bangladesh like other countries. The most common form of violence is physical assaults and followed by sexual assaults and harassments. The psychological or mental violence either separately or inclusively with other forms of violence is high but the victims are not aware about such violence. Government of Bangladesh enacted various laws to prevent and redress violence against women and children as well as the Hon’ble High Court Division of Supreme Court of Bangladesh has given directives detailing a set of guidelines for action in cases of sexual harassment of women and girls in academic institutions, workplaces or organizations. The cycle of violence has three distinct phases, namely before the incidence of violence where the awareness and sensitization can play a vital role. The second phase is the incidence of violence which requires various types of supports and responses for the victims. The 3rd one is the follow up of the cases including the rehabilitation and reintegration of the victims into her community. In this paper I have incorporated the existing services and supports for the women and children victims of violence. Also focused on how to mobilize all the required services from one corner through multi-sectoral programme on violence against women (MSPVAW) like One-Stop Crisis Centre, One-Stop Crisis Cell, National Trauma Counseling Centre, National Helpline Centre. The unique innovation under this programme is the mobilization of the concerned ministries, departments, local offices, professionals, stakeholders, community people under those institutions to work under one umbrella. The effective network among the government departments, development partners, non-government organizations and citizen’s groups is the success story of the MSPVAW. This network, firstly, for the multi-sectoral approach and secondly, for each components developed professional engagement from national to the grassroots level and sharing the good practices of all stakeholders provide the opportunity for belongingness. I believe that the prevalence of the violence in Bangladesh demands the coordinated mechanism for providing various supports and services by implementing the National Action Plan to prevent violence against women and children. Our target is to bring together all experts from different professions and stakeholders to combat violence against women and children by enforcing the services of the National Centre on Gender based Violence. The professionals and stakeholders can be sensitized to change the mindset of the people and overcome the social stigma of the victims and their families to avoid further humiliation in the community.
Structural and dielectric properties of pure and cerium doped barium titanate
Sabina Yasmin,Shamima Choudhury,M. A. Hakim,A. H. Bhuiyan,M. J. Rahman 한양대학교 세라믹연구소 2011 Journal of Ceramic Processing Research Vol.12 No.4
Barium titanate (BaTiO3) and cerium (Ce) doped BaTiO3 samples were prepared by the standard solid state reaction method and were sintered at 1473 K for four hours. The structural and dielectric properties of the samples were studied. The x-ray diffraction results showed mostly the BaTiO3 phase where the lattice parameter decreased with the addition of Ce. The temperature dependent dielectric constant showed a transition temperature, which decreased with an increase in dopant content. The dielectric constant decreased with an increase in frequency and increased as the amount of dopant was increased. The alternating current resistivity decreased in the lower frequency range (1-100 kHz) and remained constant in the higher frequency range. The direct current (dc) density-voltage characteristics of the samples showed ohmic behavior for both the pure and Ce-doped BaTiO3. As the temperature increased the dc resistivity of the samples decreased. The activation energy increased with the Ce content.
Sabina Yeasmin,Il Jun Kwon,Dong Jun Kwon,Jungeon Lee,Jeong Hyun Yeum,Byung Chul Ji,Jae Min Park,Seong Baek Yang 한국섬유공학회 2022 Fibers and polymers Vol.23 No.3
In this study, pullulan (PULL) nanocomposite films containing tempo cellulose nanofibrils (TOCNs) and Agnanoparticles were successfully prepared using a solution casting technique in aqueous solutions. X-ray diffraction resultsand optical microscopy images revealed the coexistence of Ag and PULL/TOCNs blend matrix as well as the uniformdistribution of Ag nanoparticles. The Fourier-transform infrared data showed that a good interaction occurred betweenTOCNs, Ag, and PULL matrix; the prepared composite film showed improved characteristics including higher tensilestrength, thermal stability, water barrier properties and reduced moisture susceptibility compared to a neat PULL film. Inaddition, the prepared film is biodegradable and possesses antimicrobial characteristics. These excellent properties clearlyindicate that this type of ternary nanocomposite film may have prospective food packaging and medical application.
EXPLORING PATIENTS’ TRUST DURING COVID-19 PANDEMIC
Sabina De Rosis,Laura Grazzini,Francesca Pennucci,Raffaele Donvito,Milena Vainieri,Gaetano Aiello 글로벌지식마케팅경영학회 2023 Global Marketing Conference Vol.2023 No.07
Trust is well recognized as a critical component of effective health system processes, as patient trust is known to influence satisfaction and other health-related behaviors. The COVID-19 pandemic has strongly affected healthcare organizations, leading to the need for reorganizing services, practices, interactions. Particularly, because of COVID-19 pandemic, patient/doctor exchanges have increasingly been mediated by digital technologies, thus leading to potential devaluation of patients trust toward the healthcare system.