15 research outputs found
Self-Confidence and some attention manifestations and their relation to (100) meter freestyle run for disabled runners category (t42)
Mental abilities are among the most important and essential fundamentals that contribute to reach to the highest levels of players. It represents a basic axis of preparation and psychological training. So, self- confidence and attention manifestations are important psychological factors that develop psychomotor performance in track and field games, and (100) meter freestyle run for disabled category (T42) especially through psychological exercises that increase sport ability. Moreover, digital development, high technical level of different games in general and track and field in particular is a great and practical event since many researches and studies are conducted on individual and team sports including (100) meter freestyle run for disabled category (T42). So, the study importance stems from an attempt to identify the significance of self- confidence and some attention manifestations and their relations to (100) meter freestyle run for disabled category (T42) as part of athletics
Recent progress in nanocomposites based on conducting polymer: application as electrochemical sensors
Abstract Over the years, intensive research works have been devoted to conducting polymers due to their potential application in many fields such as fuel cell, sensors, and capacitors. To improve the properties of these compounds, several new approaches have been developed which consist in combining conducting polymers and nanoparticles. Then, this review intends to give a clear overview on nanocomposites based on conducting polymers, synthesis, characterization, and their application as electrochemical sensors. For this, the paper is divided into two parts: the first part will highlight the nanocomposites synthesized by combination of carbon nanomaterials (CNMs) and conducting polymers. The preparation of polymer/CNMs such as graphene and carbon nanotube modified electrode is presented coupled with relevant applications. The second part consists of a review of nanocomposites synthesized by combination of metal nanoparticles and conducting polymers
Histophysiology study of interleukin-4 in thyroid cancer patients
Introduction.Interleukins have promising prospects in the clinical treatment of cancer. Interleukin-4 (IL-4) is an anÂti-inflammatory cytokine with an immunosuppressive effect on antitumor activity by immune cells, but the mechanical action of IL-4 in thyroid cancer is unknown. Aim: to investigate the effect of IL-4 expression in thyroid cancer patients. Furthermore, to clarify the association between obesity and thyroid cancer.
Material and methods.The present study was conducted on 115 subjects with thyroid nodules (36 with thyroid cancer and 79 with benign lesions) in Basrah, Iraq, from November 2019 to April 2022. To conduct a histophysiology study of IL-4.
Results.There was a significant difference in serum IL-4 between the thyroid cancer and control subjects. A higher level of serum IL-4 was observed in the Hashimoto thyroiditis group. There was no significant difference in body mass index (BMI) between thyroid cancer and control subjects. The expression of tissue IL-4 in thyroid cancer patients was strong in 8 (22.22%) slides, moderate in 7 slides (19.44%), weak in 8 slides (22.22%), and negative in 13 slides (36.11%), while in the control group, it was strong in 7 (30.44%) slides, moderate in 8 slides (34.79%), weak in 5 slides (21.74%) and negÂative in 3 slides (13.03%).
Conclusions.These findings indicate that serum levels of IL-4 may help diagnose thyroid cancer and identify patients with active disease who deserve closer medical attention. Furthermore, the secretion of IL-4 was systematic and not localized in thyroid cancer tissues. Obesity was not associated with a prevalence of thyroid cancer
Histophysiology study of interleukin-4 in thyroid cancer patients
Introduction.Interleukins have promising prospects in the clinical treatment of cancer. Interleukin-4 (IL-4) is an anÂti-inflammatory cytokine with an immunosuppressive effect on antitumor activity by immune cells, but the mechanical action of IL-4 in thyroid cancer is unknown. Aim: to investigate the effect of IL-4 expression in thyroid cancer patients. Furthermore, to clarify the association between obesity and thyroid cancer.
Material and methods.The present study was conducted on 115 subjects with thyroid nodules (36 with thyroid cancer and 79 with benign lesions) in Basrah, Iraq, from November 2019 to April 2022. To conduct a histophysiology study of IL-4.
Results.There was a significant difference in serum IL-4 between the thyroid cancer and control subjects. A higher level of serum IL-4 was observed in the Hashimoto thyroiditis group. There was no significant difference in body mass index (BMI) between thyroid cancer and control subjects. The expression of tissue IL-4 in thyroid cancer patients was strong in 8 (22.22%) slides, moderate in 7 slides (19.44%), weak in 8 slides (22.22%), and negative in 13 slides (36.11%), while in the control group, it was strong in 7 (30.44%) slides, moderate in 8 slides (34.79%), weak in 5 slides (21.74%) and negÂative in 3 slides (13.03%).
Conclusions.These findings indicate that serum levels of IL-4 may help diagnose thyroid cancer and identify patients with active disease who deserve closer medical attention. Furthermore, the secretion of IL-4 was systematic and not localized in thyroid cancer tissues. Obesity was not associated with a prevalence of thyroid cancer
Terabit indoor laser-based wireless communications : LiFi 2.0 for 6G
This paper provides a summary of available technologies required for implementing indoor laser-based wireless networks capable of achieving aggregate data-rates of terabits per second as widely accepted as a sixth generation (6G) key performance indicator. The main focus of this paper is on the technologies supporting the near infrared region of the optical spectrum. The main challenges in the design of the transmitter and receiver systems and communication/networking schemes are identified and new insights are provided. This paper also covers the previous and recent standards as well as industrial applications for optical wireless communications (OWC) and LiFi
Polymer-mercury coated screen-printed sensors for electrochemical stripping analysis of heavy metals
Les dégénérescences calciques pulpaires et leur impact sur la qualité du traitement endodontique : étude radiographique
Objectifs : Déterminer la prévalence des
calcifications pulpaires chez un groupe
de patients Marocains consultant un centre
de soins, et étudier leur impact sur la qualité du
traitement endodontique.
MatĂ©riels et mĂ©thodes : LâĂ©tude a portĂ© sur
149 dossiers choisis parmi ceux des patients
ayant consultĂ©, au service dâOdontologie
Conservatrice du Centre de Consultations et
de Traitements Dentaires de Rabat, comportant
des radiographies rétro-alvéolaires de dents
permanentes traitées endodontiquement,
accompagnés de fiches cliniques contenant
lâensemble des informations relatives aux
patients et aux dents concernées.
Résultats : Les dégénérescences calciques
ont été retrouvées au niveau de 39,6 % des
dents examinées. Les molaires étaient le
groupe dentaire le plus touché 57,63 %, suivi
par les dents cariées 49,16 % et en dernier
lieu les dents présentant à la fois une lésion
carieuse et restauration ou lésion carieuse avec
maladie parodontale. Alors quâil nâexiste pas
dâassociation significative entre les calcifications
pulpaires et les paramĂštres suivants : lâĂąge,
le sexe, le siĂšge et lâĂ©tat pathologique
pulpaire. La qualité technique du traitement
endodontique était jugée inadéquate dans
33,9 % des dents présentant des calcifications.
Conclusion : Les dégénérescences calciques
semblent constituer une source de difficulté qui
doit ĂȘtre prise en considĂ©ration pour amĂ©liorer
la qualité des traitements endodontiques
Performance evaluation of polymer electrolyte membranes based on hydrogen sulfite ionic liquid for application in direct methanol fuel cell (DMFC)
Series of proton conductive membranes were prepared by mixing different weight ratio of 3-hexyl-1-methylimidazolium hydrogensulfite ([C6C1Imi][HSO3]), and N-hexyl-pyridinium hydrogensulfite ([C6Py][HSO3]) ionic liquids with poly vinyl alcohol (PVA) polymer. To characterize the PVA-ILs membranes, different methods have been used such as X-ray diffraction (XRD), Fourier-transform infrared (FTIR), and scanning electron microscope (SEM). Moreover, the water uptakes, ion exchange capacity, methanol permeability, and proton conductivity of prepared PVA membranes doped with different weight ratio of ILs have been investigated to find the optimum formulation to use as electrolytes membranes for direct methanol fuel cell. The proton conductivity and the ion exchange capacity were improved as the ILs content increased. At 25 °C, The PVA-60 wt.% of [C6C1Imi][HSO3] membrane had a maximum proton conductivity of 17,47 mS.cmâ1, and a methanol permeability of 8.17 10â7 cm2.s â 1. Mechanical and thermal data confirmed that addition of ILs improve the membrane flexibility and thermal stability up to 200 °C
Supporting youth 12â24 during the COVID-19 pandemic : How Foundry is mobilizing to provide information, resources and hope across the province of British Columbia
Foundry is a province-wide network of integrated health and social service centres for young
people aged 12â24 in British Columbia (BC), Canada. Online resources and virtual care broaden
Foundryâs reach. Its online platform â foundrybc.ca â offers information and resources on topics such as
mental health, sexual wellness, life skills, and other content suggested by youth and young adults. The
COVID-19 pandemic has presented significant and unique challenges to the youth and their families/
caregivers served by Foundry. Disruptions to school, access to essential healthcare services such as
counselling, familial financial security and related consequences has left young people with heightened
anxiety. The Foundry team mobilized to respond to these extenuating circumstances and support BC
youth and their families/caregivers during this hard time through three goals: (1) to amplify (and translate
for young people and their families/caregivers) key messages released by government to support public
health responses to the COVID-19 pandemic; (2) to develop content that supports the needs of young
people and their families/caregivers that existed before COVID-19 and are likely to be exacerbated as a
result of this pandemic; and (3) to develop and host opportunities through social media and website
articles to engage young people and their families/caregivers by creating a sense of community and
promoting togetherness and social connection during the COVID-19 pandemic. Each goal and plan
integrated the leadership, feedback and needs of youth and their families through engagement with
Foundryâs provincial youth and family advisory committees. Our study evaluated Foundryâs media
response to the COVID-19 pandemic by recording/measuring (1) the website/social content created,
including emerged thematic topic areas; (2) the process of topic identification through engagement with
youth and young adults; (3) the social and website analytics of the created content; and (4) the constant,
critical team-reflection of our response to the pandemic. Following measurement and reflection, our team
offers recommendations to health promotion organizations for future preparedness.Medicine, Faculty ofNon UBCOccupational Science and Occupational Therapy, Department ofReviewedFacultyResearcherOthe