bluuebunny/crossref_metadata_2025 huggingface dataset:
Les trajectoires de la coopération, pour une reformulation des rapports entre travail et liberté. À propos de Enrico Donaggio, José Rose, Mariagrazia Cairo (dir.), Travail e(s)t liberté ?
Authors: Puletti Federico
Published: August 2023

L’article analyse les différentes contributions contenues dans l’ouvrage collectif édité par Enrico Donaggio, José Rose, Mariagrazia Cairo intitulé Travail e(s)t liberté ?, La proposition est de les interpréter en fonction du thème de la coopération au travail tel qu’explicité par Marx dans Le Capital, thème qui permet d’analyser simultanément les transformations des activités de travail et les dynamiques de subjectivation politique inhérentes aux processus de production. Reprenant les principaux arguments du livre, et plus particulièrement la critique faite aux configurations dominantes des relations entre travail et liberté, l’article tente d’en avancer une « critique écologique ». Est-il possible de «  libérer le travail  » et de «  se libérer dans le travail  » sans tenir compte de «  l’histoire environnementale  »i d’une idée politique comme celle de la liberté ? La réponse que l’article tente de suggérer est que non. En conclusion, l’article propose quelques hypothèses pour commencer à penser l’articulation entre liberté et travail à l’ère de la crise écologique.
Effect of Personality Traits and Emotion Regulation Strategies on Risky Behaviors in Adolescents
Authors: Ciydem Emre , Avci Dilek , Uyar Murat , Seyhan Ahmet
Published: August 2023

The current study investigated the effects of personality traits and emotion regulation strategies on high-risk behaviors among adolescents (
N
= 1,572). This study used a cross-sectional and correlational research design. Multiple linear regression was used for analysis. A 1-unit increase in extraversion and neuroticism led to a 0.391- and 0.365-unit increase in high-risk behaviors, respectively. However, a 1-unit increase in agreeableness and conscientiousness led to a 0.307- and 0.365-unit decrease in high-risk behaviors, respectively (
p
< 0.05). A 1-unit increase in external and internal dysfunctional emotion regulation strategies led to a 1.34- and 0.548-unit increase in high-risk behaviors, respectively. However, a 1-unit increase in internal functional emotion regulation strategies led to a 0.641-unit decrease in high-risk behaviors (
p
< 0.05). Regression analysis showed that age, school type, sex, grade level, father's educational level, father's child-rearing style, and school performance were associated with more high-risk behaviors (
p
< 0.05). There were correlations between some personality traits, emotion regulation strategies, sociodemographic characteristics, and high-risk behaviors. Early intervention programs targeting dysfunctional personality traits and emotion regulation skills in adolescence may prevent the development of risky behaviors in adulthood. [
Journal of Psychosocial Nursing and Mental Health Services, 62
(2), 23–36.]
Mental Health Problems Among Adolescents With Mild Intellectual Disability and Relation to Sleep Quality and Perceived Social Support: A Comparative Study
Authors: Avci Dilek
Published: August 2023

The current cross-sectional study sought to determine the mental health problems of adolescents with mild intellectual disability (ID) and influencing factors. This study, which used a comparison group, was performed with 188 adolescents (91 with mild ID and 97 without ID) between January 2019 and June 2019 in Turkey. Data were collected using a Personal Information Form, the Strengths and Difficulties Questionnaire, Pittsburgh Sleep Quality Index, and Perceived Social Support Scale. Adolescents with mild ID were at higher risk for mental health problems compared to those without ID. According to linear regression analysis, sex, age, birth order, maternal age, parents' educational level, sleep quality, and perceived social support were statistically significant predictive factors of mental health problems in adolescents with mild ID. Results of this study indicate that adolescents with mild ID are at greater risk for mental health problems and that effective prevention/intervention strategies are needed. [
Journal of Psychosocial Nursing and Mental Health Services, 62
(3), 39–50.]
Approximate controllability of Sobolev-type Atangana-Baleanu fractional differential inclusions with noise effect and Poisson jumps
Authors: Sayed Ahmed A. M. , Ahmed Hamdy M. , Abdalla Nesreen Sirelkhtam Elmki , Abd-Elmonem Assmaa , Mohamed E. M.
Published: August 2023

In this paper, we explore the approximative controllability of fractional stochastic differential inclusions (SDIs) of Sobolev-type with fractional derivatives in Atangana-Baleanu (AB) sense and Poisson jumps. Our findings are supported by the fixed point theorem, multi-valued map theory, compact semigroup theory and stochastic analysis principles. In the later part, an illustration is provided to clarify the established outcomes.
Use of Games in ESP Classes: Perceptions from Students and Teachers
Authors: Synekop Oksana , Lavrysh Yuliana , Lytovchenko Iryna , Chugai Oksana , Lukianenko Valentyna
Published: August 2023

Games are a powerful tool that can generate students’ interest and add variety to the traditional process of English for Specific Purposes (ESP) instruction. Therefore, our aim was to explore their motivational and didactic potential in ESP classes at the university, particularly, to analyze teachers’ and students’ attitudes toward the use of games and to examine the effect of games on learning vocabulary and grammar. To achieve this, we used a mixed methods research design collecting qualitative and quantitative data through surveys and tests from both teachers and students. The survey results showed that both ESP teachers and students had positive attitudes toward the use of games in the learning process due to the motivational power of games, their ability to make learning enjoyable, involve and stimulate students to active enquiry, and create a relaxed environment. We observed statistically higher results in the post-test for ESP vocabulary and grammar in the experimental groups where games were incorporated, signifying the effectiveness of this method. The study contributes to our understanding of the motivational potential of games and their possibilities for teaching ESP. In future research, the assessment of gamified activities could be explored to further enrich our knowledge in this area.
Quand une marge rejoint la « grande majorité des pays ». Les cours occidentales comme modèle pour la hirð norvégienne au xiiie siècle
Authors: Barabino Victor
Published: August 2023

L’étude de deux traités du xiiie siècle, les Lois de la hirð (Hirðskrá) et le Miroir royal (Konungs skuggsjá), révèle l’émergence d’un modèle du bon courtisan spécifique à l’élite aristocratique de Norvège. Par la comparaison de ces textes avec des sources d’autres pays, il est possible de déterminer les similarités de ce modèle avec celui qui prévaut dans les cours occidentales. Les normes qui s’imposent au sein de l’aristocratie norvégienne (hirð) relèvent alors de dynamiques d’uniformisation culturelle, dans un royaume encore en voie d’unification, ainsi que d’une volonté d’inclusion dans l’Occident médiéval, amenant ainsi à définir la Norvège comme une marge en voie d’intégration au sein de cet espace.
Penser les marges juridiques par les marges manuscrites en droit romain médiéval : Le cas du mariage juif par Azon (m. ca. 1225)
Authors: Karsenty Alexandre
Published: August 2023

Pour intégrer le mariage juif dans le système du droit civil, le maître bolonais Azon (m.1225 ca.) l’insère dans une opposition entre iura communia et lois propres (legem suas). Il se fonde essentiellement sur la constitution impériale Nemo, insérée au titre De Iudaeis du Codex de Justinien (C., 1, 9, 7). Azon s’efforce de caractériser le mariage juif comme un mariage romain, tout en explicitant les lois juives pouvant faire obstacle à une telle caractérisation. Il en résulte une interrogation qui intéresse doublement le rapport aux marges. En effet, le sort juridique d’une population marginale, car non chrétienne dans un monde chrétien, procède d’un rapport singulier entre les marges manuscrites du doctor legum et le texte central du Corpus iuris civilis faisant autorité.
Oman dans l’écosystème impérial irakien au premier âge abbasside et à l’époque buyide : entre marginalité construite et convoitises politiques (seconde moitié du viiie- seconde moitié du xie siècle)
Authors: Baptiste Enki
Published: August 2023

L’histoire d’Oman à l’époque médiévale est caractérisée par un rapport ambivalent au centre de l’Empire irakien. Les sources produites par les historiens de Bagdad témoignent de ce processus de construction de la marginalité : considéré comme la terre d’élection de l’hétérodoxie, Oman devient une zone frontalière. La géographie politique du territoire fut d’ailleurs sans cesse recomposée par les invasions et la plasticité de l’imamat ibāḍite.
Les limites de la périphérie. L’action des pays en développement dans les négociations économiques internationales des années 1950 à 1970 et son interprétation structuraliste
Authors: Orange-Leroy Raphaël
Published: August 2023

Les années 1950-1970 voient le rapprochement des pays en développement aux Nations unies et la formation du groupe des 77 afin de négocier avec les pays du Nord un système économique international plus équitable. L’action du G77 a participé à une reconceptualisation des affaires internationales et à l’affirmation de nouvelles approches des politiques de développement. Pour les tenants d’une lecture de type « centre-périphérie », cela a marqué « l’émergence de la périphérie dans le système-monde ». Bien qu’intéressant pour penser les mécanismes de domination et leur remise en cause, ce type d’approches structuralistes a néanmoins participé à obscurcir la compréhension des relations entre les membres du G77. En retraçant la mobilisation des pays en développement dans les organisations internationales, cet article vise donc à questionner les apports et les limites des interprétations « centre-périphérie ».
Processing and Characterization of UAE Clay Ceramic Membranes for Water Treatment Applications
Authors: Khalil Abdelrahman Khalil Abdelrazek , Elgamouz Abdelaziz , Atieh Muataz Ali , Shanableh Abdallah , Laoui Tahar
Published: August 2023

The scarcity of drinking water is currently a critical issue in many parts of the world. Providing clean/urgent longer limited to natural sources. Wastewater treatment has become an urgent necessity in many countries, particularly in the Middle East and North African regions characterized by a desert climate. Hence, the development of effective methods for wastewater treatment is vital to overcome this water shortage. The present study attempts to explore the use of local clay from the United Arab Emirates (UAE) to prepare porous ceramic membranes (flat disk shape) for the purpose of removing toxic heavy metals from contaminated water. Two types of ceramic membranes were prepared by powder metallurgy method; the first type was prepared by uniaxial compression of the clay powder with particle size ≤ 250 μm, followed by sintering. The second type of membrane was composed of an activated carbon/clay powder mixture at different ratios (0.5%, 3% w/w). The activated carbon was used as an agent to form porosity in the plain clay membrane. The activated carbon was found to affect the final characteristics of the flat disk membranes sintered at 1000°C. 3% w/w activated carbon/clay powder was found to induce 19% porosity in the flat disc. The flat disc membranes were also characterized by X-ray diffraction, and scanning electron microscopy, X-ray fluorescence. The plain clay and 3% w/w activated carbon membranes were tested for their efficiency for water permeation. The results proved that the UAE clay could be considered as a promising material for the fabrication of ceramic membranes for prospective use in the removal of water contaminated with heavy metals.
Processing of Carbon Nanofibers with Graphene Oxide and Carbon Nanotubes Additives and its Application in CDI Electrode Material
Authors: Abumadi Farah Anwar , Koujan Moumena , Laoui Tahar , Atieh Muataz Ali , Khalil Khalil Abdelrazek
Published: August 2023

Water shortage has been a severe problem affecting the globe for the past decade. Therefore, appropriate and efficient technologies should be implemented to tackle the water shortage dilemma and to acquire clean water. Several desalination techniques are implemented across the world; among them is capacitive deionization (CDI). CDI is an energy-efficient and cost-effective electrochemical process employed for extracting charged ions from aqueous solutions using a pair of electrodes. Electrode materials strongly influence the CDI's desalination efficiency and conductivity. The CDI electrodes are composed of carbon materials such as activated carbon, carbon aerogel, carbon nanofibers, and porous carbon. However, in this study, carbon nanofibers that possess several advantages and properties over the existing materials have been examined to be used as CDI electrode material due to their high electrical conductivity, large surface area, dimensional stability, and low production cost. Furthermore, different conductive additives could be added to the carbon nanofibers to increase the electrical conductivity and capacitance. In particular, this paper discusses the effect of adding graphene oxide (GO) and carbon nanotubes (CNT) as additives to carbon nanofibers.
3D Finite Element Modeling of Suction Caissons Used as Foundations for Offshore Wind Turbines in Clayey Soils
Authors: Mostafa Omar , Arab Mohamed G. , Omar Maher
Published: August 2023

In this study, three-dimensional finite element modeling is utilized to simulate suction caisson foundations used for offshore wind turbines. The behavior of suction caissons in normally consolidated clayey soil subjected to lateral loading is investigated. A numerical model is calibrated and validated using experimental laboratory physical model. A parametric study is conducted to evaluate the effect of suction caisson diameter (D) and the ratio of skirt length (L) to caisson diameter (L/D) on the load-deflection response of a full-scale suction caisson. Several caisson diameters and length to diameter ratios were considered. The results of numerical analysis modeling demonstrated that the caisson ultimate load capacity and displacement are significantly affected by caisson geometry. Generally, increasing both the caisson diameter and length has substantially increased both caisson’s ultimate load capacity and displacement at failure. However, the increase in ultimate capacity and displacement reaches a threshold after which the increase in these values is less pronounced as D and L/D are further increased. Additionally, the effect of caisson geometry on relative stiffness is investigated. The relative stiffness of the suction caisson was found to increase proportionally with the increase of both diameter and length of the modeled caissons.
Assessment of Drowsy Driving Associated Characteristics Using Deep Learning
Authors: Naeem Marwan , Alotaibi Emran , Elbaz Yousef , Abuzwidah Muamer , Barakat Samer
Published: August 2023

The presence of road traffic accidents is subjected to various contributing factors including drowsy driving. The occurrence of drowsy driving has been a major cause of road accidents globally. Therefore, this study aims to analyze demographic, socio-economic, daily habits and drowsy-related characteristics associated with fatigued or drowsy driving in the United Arab Emirates (UAE). The data were gathered upon a questionnaire-based survey among a sample size of 525 drivers in the UAE. Inputs were given weights upon consulting experts in the field of transportation. Data were analyzed using artificial neural networks (ANN). Daily habits significantly affect the driver’s risk to experience fatigued driving. Socio-economic, drowsy-related, and demographic characteristics followed sequentially. Time of day to experience drowsy driving has the largest importance. Moreover, daily habits such as driving durations, distance driven, and sleeping hours demanded the importance of drowsy driving risk next. Socio-economic characteristic such as the average monthly income was the least significant. Prevalence of sleep-related accidents in the UAE is a fact, where drivers are less concerned about fatigue driving than other traffic safety issues. Raising awareness of drowsy driving among society is a need since people tend to see other factors to be riskier than drowsy driving. The results highlight the need to counteract drowsy driving with treatments on-road and more education to the public.
Effect of COVID-19 on immunization coverage of children aged 0-11 months in the centre region of Cameroon
Authors: Djommo Metchehe Loïc D. , Tchio-Nighie Ketina H. , Wakam Nkontchou Blaise , Kouagnang Tchoukio Lena L. , Ateudjieu Jérôme
Published: August 2023

The occurrence of epidemics is known to contribute in reducing the capacity of health facilities to deliver care and the predisposition of populations to seek care through several mechanisms. The objective was to assess the effect of the COVID-19 on vaccination coverage of the expanded program of immunization (EPI) vaccines in children aged 0-11 months. The study involved a descriptive and case control designs exhaustively targeting health facilities in health areas from selected health districts. The descriptive part explored the distribution of immunization coverage 12 months before and during COVID-19. Data were extracted from monthly EPI reports of health areas. Cases were months with immunization coverages of Bacille Calmette-Guerin (BCG), Measles Mumps-Rubella 1 (MMR1) or Diphtheria-Pertussis-Tetanus Hepatitis B + Hemophilus influenzae type b dose 3 (DPT-Hi+Hb3) less than 80%. The exposure were months belonging to the pandemic period. Of the 78 targeted health areas, 74 (94.87%) were reached. The monthly immunization coverage of BCG, RR1, DPT-Hi+Hb 1 and 3 decreased during the pandemic period by minimum 30%. Being a health-area month belonging to the COVID-19 pandemic period was found to be significantly associated to lower BCG (OR=2.00 [1.61; 2.50]; p0.001), MMR1(OR=2.45 [1.76; 3.41]; p0.001) and DPT-Hi+Hb3 (OR=2.11 [1.68; 2.64]; p0.001) immunisation coverage. COVID-19 had a significant effect on the decrease of immunization coverages of antigens offered in the EPI program. This raises the need to develop interventions during health emergencies to prevent disruption of health services access.
Athletic Trainers’ Psychosocial Experiences During the COVID-19 Pandemic: A Qualitative Research Study
Authors: DiSanti Justin S. , Post Eric G. , Eason Christianne M. , Root Hayley J. , Abdenour Thomas E.
Published: August 2023

Context

Despite the many challenges posed by the COVID-19 pandemic, athletic programs have sought ways to persevere and deliver sport programming. This process has strained the psychosocial health of all sport stakeholders but especially those entrusted with promoting the health of participants and enforcing safety protocols. Athletic trainers (ATs) have been a major influence in striving to achieve these goals by expanding their typical roles to lead in promoting the safe delivery of sport programs.

Objective

To examine the psychosocial lived experiences of ATs as they practiced during the COVID-19 pandemic.

Design

Qualitative study.

Setting

National Collegiate Athletic Association Divisions I, II, and III.

Patients or Other Participants

A total of 27 ATs practicing at the collegiate level (Divisions I, II, and III) who were actively involved in planning and implementing return-to-sport protocols during the COVID-19 pandemic.

Data Collection and Analysis

Semi-structured interviews were conducted via Zoom. Inductive conventional content analysis identified emerging themes that characterized participants’ narratives. Three members of the research team were involved in the analysis process and used field notes, continuous member checking, peer review, and multiple-researcher triangulation to establish data credibility and confirmability.

Results

Three higher-order themes related to ATs’ psychosocial lived experiences emerged: (1) internalized experience, (2) interpersonal interactions, and (3) AT identity. Several subthemes were also identified to further organize elements that characterized or differentiated participants’ lived experiences.

Conclusions

Athletic trainers encountered significant challenges in maintaining their psychosocial health during the pandemic as they strived to assist others in this regard. Providing effective psychological and social support resources and strategies for ATs may not only allow them to better support themselves but may also enhance their ability to deliver professional services and promote psychosocial health among their athletes and other stakeholders in their respective sport systems in the future.
ZWINT Promotes the Proliferation, Migration, and Invasion of Cervical Cancer Cells by Regulating the p53/p21 Signaling Pathway
Authors: Ma Zhe , Cai Yufei , Tian Chenchen
Published: August 2023

Cervical cancer leads to 300,000 deaths annually and the mechanism of cervical carcinogenesis remains unclear. Zeste White 10-interacting kinetochore protein (ZWINT) is uniquely elevated in malignancies, promoting proliferation, migration, and colony formation of cancer cells. To investigate the role of ZWINT in proliferation, migration, invasion of cervical cancer, and evaluate the potential ability of ZWINT as a therapeutic target. First, ZWINT expression in cervical cancer was analyzed using the bioinformatic methods and assessed in several cervical cancer cell lines. The cell viability and colony formation assays were used to evaluate cell proliferation. Then, transwell assay was performed to investigate cell migration and invasion. Moreover, western blot was used to measure the expression level of ZWINT, matrix metalloproteinase 9 (MMP-9), N-cadherin, E-cadherin, p53 and p21 in CaSki and HeLa cells with ZWINT overexpression or knockdown. The bioinformatic analysis and western blot assay revealed the expression of ZWINT was significantly increased in cervical cancer. The cell viability and colony formation analysis illustrated that cell proliferation could be promoted by ZWINT overexpression and suppressed by ZWINT knockdown. Moreover, ZWINT promoted migration and invasion of CaSki and HeLa cells, through regulating the expression of MMP-9, N-cadherin, and E-cadherin. Furthermore, ZWINT attenuated the expression of p53 and p21 in cervical cancer cells. In summary, ZWINT functions in promoting cell proliferation, migration, and invasion of cervical cancer cells by suppressing p53/p21 signaling pathway, which indicated ZWINT is a potential therapeutic target for cervical cancer treatment.
Comparative Evaluation of Setting Time and Sealing Ability of Two Root End Filling Materials: An In vitro Study
Authors: Kharabe Vidhi , Thosar Nilima , Fulzele Punit , Bane Sphurti Pramod , Gupta Suruchi
Published: August 2023

Purpose:

Incomplete root formation caused due to trauma can lead to problems in future. Treating such open apices teeth pose a challenge. Apexification is one of the treatment options for such teeth with open apex. Thus, this in vitro study intended to assess and compare two commercially available root-end filling materials mineral trioxide aggregate (MTA)-Angelus and Biodentine™ for their setting time and sealing ability.

Materials and Methods:

This in vitro study assessed the setting time and sealing ability of the two materials; MTA-Angelus and Biodentine™. For setting time evaluation, 30 rings were made and divided into two groups. The evaluation was done using Vicat apparatus. For sealing ability, sixty single rooted teeth were used and were divided into four groups (two experimental and two control). The assessment was done using the linear dye penetration method.

Results:

Mean setting time of Biodentine and MTA was 29.2 ± 3.84 min and 15.2 ± 2.11 min, respectively. The mean linear dye penetration in MTA group was found to be 0.808 ± 1.094 mm, 3.76 ± 1.05 mm in Biodentine group, 5.28 ± 1.73 mm and 0.05 mm in positive control group.

Conclusion:

MTA-Angelus demonstrated a faster setting time when compared to biodentine, while biodentine showed to have a superior sealing ability.
Evaluation of Superoxide Dismutase, an Antioxidant Enzyme, in Oral Squamous Cell Carcinoma: A Systematic Review and Meta-Analysis
Authors: Panwar Arun , Ruhil Shikha , Keluskar Vaishali , Jirge Vasanti-Lagali , Kumar S Lokesh , Sridhar M
Published: August 2023

Objective:

The objective is to qualitatively and quantitatively review the published literature on superoxide dismutase (SOD) levels in oral squamous cell carcinoma (OSCC).

Materials and Methods:

MEDLINE (via PubMed), SCOPUS, Science Direct, Cochrane Library, ProQuest, Google Scholar, and gray literature were comprehensively searched. Human clinical studies published between 2000 and 2021 were included. The Newcastle–Ottawa Scale was used to evaluate the risk of bias in the studies.

Results:

Of the 873 articles screened, six studies were included, evaluating 640 patients (554 OSCC cases and 113 controls). SOD levels in OSCC subjects were significantly lesser (P < 0.01) compared to healthy controls in spectrophotometry analysis, whereas its immuno-expression was significantly higher in the OSCC tissue samples in immunohistochemistry. In the meta-analyses related to SOD analysis by spectrophotometry, the overall effect size of tissue SOD in OSCC and control group were 8.51 and 11.62 U/mg protein, respectively. In the meta-analyses related to SOD analysis by immunohistochemistry, the overall effect size of tissue SOD in OSCC was 55.55% and 3.61% for cell staining, respectively.

Conclusion:

Decreased SOD levels in OSCC tissue samples in spectrophotometry and high immunoexpression in immunohistochemistry accurately reflect increased oxidative stress (OS) levels. Further studies are required to understand the increase in SOD levels in OSCC tissue. Correlation analysis between SOD levels and established clinicopathological prognostic markers could aid in formulation of OS-based prognostication and treatment planning.
The Effect of Toothbrushing Duration on Plaque Removal: A Randomized Crossover Trial
Authors: Pavani Bellamkonda , Anu V. , Cinthiya G. Sweetlin , Deepika V. , Ayesha M. Siddiqah , Reddy Akkaloori Anitha
Published: August 2023

Background:

Regular toothbrushing is an important step that removes plaque which is the common risk factor for both periodontitis and dental caries. Commonly prescribed time of brushing by dental professionals is 2 min, despite of which, the average time spent for brushing by the general population is 45 s.

Aim:

The aim of this study was to determine the relationship between different brushing times from 30 to 180 s, and plaque removal using conventional brushing techniques in the general population.

Materials and Methods:

Forty participants were included in the study. Study participants brushed for 30, 45, 60, 120, and 180 s randomly. Plaque levels at baseline and after brushing for a specific time period were assessed using the Turesky-modified Quigley–Hein plaque index and a disclosing agent.

Results:

Plaque removal increased with increased brushing time with maximum removal at 180 s.

Conclusions:

Dental professionals during health education sessions should highlight the importance of brushing for more than 3 min to achieve maximum plaque removal.
Impact of Peer-Assisted Early Clinical Exposure on Learning in Dental Students
Authors: Hande Alka Harish , Zade Prajakta R. , Gawande Madhuri Nitin , Patil Swati Krishnakant , Sonone Archana Madhukar , Pakhale Aayushi Prakash
Published: August 2023

Background:

Early clinical exposure (ECE) would augment the clinical education quality in dental students. Although ECE has been practicing to reinforce learning, it has certain limitations. Mainly restrictions on resources due to inappropriate student-teacher ratio owing to less no of trained faculty in the department. The student-centered teaching method such as peer-assisted learning (PAL) can be used as a supporting modus operandi in the deliverance of the curriculum at the undergraduate level to augment the learning by ECE.

Materials and Methods:

The study population includes a cohort of 100 Students of I Bachelor of Dental Sciences (BDS) and 25 Students of II BDS. From I BDS, 50 students (Group A = experimental group) were selected as cases and 50 as controls (Group B = control group) by the simple random sampling. Twenty-five students were selected from II BDS on the basis of performance scale (high achievers) as peers. (Group A) students were exposed to the ECE module which was assisted by peers as an enhancement to didactic teaching-learning. Control group (Group B) students were exposed to conventional ECE, which is facilitated by faculty members/teachers. After the intervention, both the groups were evaluated for knowledge, skills, and attitude as posttest.

Results:

The significantly enhanced posttest score was observed in Group A (7.46 ± 1.32) as compared to Group B (3.98 ± 1.59). The mean objective structured practical examination score in Group A was improved as compared to Group B and the difference between them was also found statistically significant (P = 0.00).

Conclusion:

Peer-assisted ECE could be a better teaching-learning methodology than traditional teaching for dental students in the Indian Scenario.
Effect of Resistance Exercise in Postmastectomy Breast Cancer Survivors: A Systematic Review
Authors: Sharma Abhishek , Vats Sakshi , Chahal Aksh
Published: August 2023

Background:

Breast cancer (BC) impacts over 1.2 million individuals every year worldwide and is the most frequently diagnosed illness in women. Medical treatment options have increased chances of survival, but these procedures frequently have side effects that can negatively impact health status and quality of life (QoL) over the long term QoL. Given that resistance exercise has a special anabolic effect; it may be useful for addressing the effects of BC and its therapy.

Materials and Methods:

This is an integrative literature review study that includes data search from PubMed, MEDLINE, Scopus, Google Scholar, and the physiotherapy evidence database databases for articles and also crossing English descriptors indexed in the medical subject headings and health sciences descriptors, respectively. The present review is based on the Whittemore and Knafl methodology.

Results:

A total of 842 patients from 13 studies were included. There was no aggravation subjectively reported or objectively evaluated lymphedema symptoms. Adverse effects were uncommon, mostly of a musculoskeletal in nature, and were successfully handled using conservative methods. The studies we looked at indicate that women who had BC surgically treated can benefit from resistance exercise in terms of their clinical and health outcomes. Results demonstrate that in cancer survivors, pain, physical and emotional functioning, fatigue, depression, and aerobic capacity have improved.

Conclusion:

It is necessary to conduct rigorously constructed randomized controlled trials (RCTs) that recommend targeted resistance exercise regimens at various stages of BC treatment. To demonstrate the effectiveness of this intervention for the posttreatment care of BC patients and survivors as a method of enhancing health status and QoL, RCTs with complete, standardized reporting of interventions, and adverse events are necessary.
Association of Uric Acid in Oral Health, Periodontal Disease, and Systemic Disorders: A Systematic Review
Authors: Uppin Rabiya Basari , Varghese Sheeja S.
Published: August 2023

Background:

The relationship between periodontitis or periodontal disease (PD) with uric acid (UA) is controversial. Furthermore, a rise in UA levels in common systemic disorders documented to be liked to PD must be understood.

Objectives:

The objective is to determine the association of UA levels with periodontal health and disease states by a systematic review of evidence from observational studies. Furthermore, we aimed to group secondary research papers which showed systemic diseases linked to periodontitis (SDLP) for the changes in UA levels in serum and discuss the consequences.

Materials and Methods:

A systematic review was conducted following the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-analyses statement. The literature search was followed by qualitative assessment using the Newcastle–Ottawa scale when evaluating PD with UA associations. A similar strategic search system was used for identifying secondary studies (systematic reviews with meta-analyses or [SRMA]) for identifying UA levels in common SDLP.

Results:

Out of 212 selected studies, 40 underwent full-text analysis; 6 were eligible for systematic review. The current review summarizes that overall PD cases have significantly more UA levels than healthy individuals or controls from data from three observational studies. In the case of SDLP, around 8 SRMA (conducted on = 164 observational studies) revealed a significant association (P < 0.05 in all instances) with serum hyperuricemia; cancer incidence and progression were more in women with raised UA than in men.

Conclusion:

The review showed that UA levels were significantly altered in PD compared to healthy individuals. However, the available evidence is inadequate to establish whether UA is diminished or elevated in periodontal disease. The SDLP all showed a significant association with raised serum UA levels with cancers affecting more women than men with high UA levels.
On uniqueness for Franklin series with a convergent subsequence of partial sums
Authors: Gevorkyan Gegham Grigor'evich
Published: August 2023

We show that if the partial sums $S_{n_i}(x)=\sum_{k=0}^{n_i}a_kf_k(x)$ of a Franklin series $\sum_{k=0}^{\infty}a_kf_k(x)$, where $\sup_i{n_i}/(n_{i-1})<\infty$, converge in measure to a bounded function $f$ and $\sup_i|S_{n_i}(x)|<\infty$ for $ x\not\in B$, where $B$ is some countable set, then this series is the Fourier-Franklin series of $f$.
Bibliography: 24 titles.
Evaluation of neopterin levels and kynurenine pathway in patients with acute coronary syndrome
Authors: Kember Ibrahim , Sanajou Sonia , Kilicarslan Bilge , Girgin Gözde , Baydar Terken
Published: August 2023

Background: Coronary atherosclerosis is the leading cause of coronary artery disease. Several investigations have indicated that tear-sensitive plaques contain macrophages and T cells. Neopterin is an essential cellular immune response biomarker. The main goal of this study was to see if there were any changes in biomarkers like unconjugated pteridines, neopterin, and biopterin, as well as kynurenine pathway enzymes like indolamine 2,3-dioxygenase (IDO), which catalyzes the rate-limiting step in tryptophan degradation, in patients with the acute coronary syndrome (ACS) caused by angiographic atherosclerosis.Methods: High-performance liquid chromatography was used to determine the amounts of neopterin, biopterin, and creatinine in urine samples, as well as tryptophan and kynurenine in serum samples. The enzyme-linked immunosorbent assay was used to assess the amounts of neopterin in serum samples. The measured parameters were evaluated between ACS patients and controls.Results: The measured levels of neopterin, biopterin and the kynurenine to tryptophan ratio reflecting IDO activity, and the specifically known biomarkers such as cardiac troponin, creatine kinase, myoglobin, and natriuretic peptides are statistically higher in ACS patients compared to control subjects. On the other hand, the measured parameters are inadequate to classify the conventional kinds of ACS, ST-elevation- and non-ST-elevation- myocardial infarction.Conclusions: The study found that determining and using neopterin and IDO parameters as biomarkers in individuals with the ACS can support traditional biomarkers. However, it can be concluded that evaluating pteridine biomarkers solely have no privilege to clinical findings in ACS diagnosis and classification.
Quality of life among patients with supraventricular tachycardia post radiofrequency cardiac ablation in Jordan
Authors: Al- Betar Mohammad Tayseer , Masa'deh Rami , Hamaideh Shaher H. , Ahmed Fatma Refaat , Bakkali Hajar , AbuRuz Mohannad Eid
Published: August 2023

Background: Supraventricular tachycardia (SVT) is a common arrhythmia with associated symptoms such as palpitation, dizziness, and fatigue. It significantly affects patients’ quality of life (QoL). Radiofrequency cardiac ablation (RFCA) is a highly effective treatment to eliminate arrhythmia and improve patients’ QoL. The purpose of this study was to assess the level of QoL among patients with SVT and examine the difference in QoL before and after RFCA. Methods: One group pre-posttest design with a convenience sample of 112 patients was used. QoL was assessed by 36-Item Short Form (SF-36). Data were collected at admission through face-to-face interviews and 1-month post-discharge through phone interviews. Results: There was a significant difference between QoL before (33.7±17.0) and one month after (62.5±18.5) the RFCA. Post-RFCA patients diagnosed with atrioventricular re-entry tachycardia had higher QoL than other types of SVT. Moreover, there were significant negative relationships between QoL and the number and duration of episodes pre- and post-RFCA. There were no significant differences in QoL based on: age, sex, working status, marital status, smoking, coronary artery disease, diabetes mellitus, and hypertension. Conclusions: After RFCA, the QoL of patients with ST improved for both physical and mental component subscales.
Smartphones app as portable colorimetric sensor for low-cost quantification of safranin dye in aqueous solutions
Authors: Sami Khalid Hawraz , Adil Fakhre Nabil
Published: August 2023

ABSTRACT. An android smartphone-based digital image colorimeter was proposed as a novel, fast, cheap, and portable colorimetric sensor for quantification of safranin in aqueous solutions via built-in-house light-boxes photography. Smartphone application known as RGB color detector app that uses an image-matching algorithm via using of take photo (TP) and live camera (LC) to analyze colorful solutions. The color values including red (R), green (G), and blue (B) parameters can be measured with the aid of the app and used for quantifying colorful solutions. The influence of various experimental factors has been optimized. Under optimal conditions, analytical curves were 1.0-10.0 and 2.0-30.0 µg/mL of safranin using G and B parameters, respectively. The obtained signal via the G channel also presented greater sensitivity and linearity, therefore preferred to be the best working channel. The obtained linear range, correlation coefficient, limit of detection, and limit of quantification were 1.00-10.00 µg/mL, 0.9889, 0.15 µg/mL, and 0.51 µg/mL via the GTP-25 method, and 1.00-10.00 µg/mL, 0.9961, 0.13 µg/mL, and 0.44 µg/mL via GLC-25 method, respectively. The proposed method was successfully applied for evaluation of the dye removal. Results were in good agreement with those recorded by UV-Visible spectrophotometer/reference method.

 

KEY WORDS: Smartphone, App, Portable, Colorimetric, Sensor, Safranin

 

Bull. Chem. Soc. Ethiop. 2023, 37(5), 1065-1080.                                                 

DOI: https://dx.doi.org/10.4314/bcse.v37i5.1
Design, synthesis, crystal structure and biological evaluation of novel 4-arylaminoquin- azoline derivatives as potent cytotoxic agents
Authors: Han Xiao , Liang Chi Liang , Tao Qin Wei , Hou Ling , Qiang Cai Zhi , Jie Ren Wen , Kun Wei Le
Published: August 2023

ABSTRACT. A series of novel 4-arylaminoquinazoline derivatives were synthesized by five-step reactions, the structure was characterized by IR, 1H NMR, MS and single crystal X-ray diffraction. The result of 5aX crystal was as follows: the crystal belongs to the monoclinic system, space group P21/c with a = 12.3637(4) Å, b = 12.7902(2) Å, c = 13.2240(5) Å, α = 90°, β = 117.030(5)°, γ = 90°, V = 1862.75(12) Å3, Z = 2, F(000) = 804.0, µ = 0.095        mm-1, S = 1.039, R = 0.0569, wR = 0.1535 for 8417 observed reflections with I > 2σ(I). The compound 5cX exhibited an excellent inhibitory effect on the cell line A549 (IC50 ＜ 2.5 µM) and the drug-resistant cell line H1975 (IC50 ＜ 2.5 µM) by the biological activitywhich were superior to the positive control Zorifertinib (against A549: IC50 = 31.08 µM; against H1975: IC50 = 64.17 µM). Molecular docking revealed that the better inhibitory activity of compound 5cX was owing to the combining EGFRWT and EGFRL858R/T790M by hydrogen bonding. The physicochemical properties of the compounds were predicted by using ADME data analysis, and the results showed that the compounds all obeyed Lipinski's five rules.

 

KEY WORDS: Quinazoline derivatives, Synthesis, X-ray diffraction, Antitumor activity

Bull. Chem. Soc. Ethiop. 2023, 37(5), 1171-1183.                                                           

DOI: https://dx.doi.org/10.4314/bcse.v37i5.10
Molecular geometry and biological activity of 2-(4-substituted-phenylimino)thiazolidin- 4-one compounds
Authors: El-Rayyes Ali , T. Mogharbel Roaa , H. Abdel-Rhman Mohamed , A. Ismail Mohamed , Abdel-Latif Ehab
Published: August 2023

ABSTRACT. A series of 2-(4-substituted-phenylimino)thiazolidin-4-one compounds was synthesized via heterocyclizing the corresponding N-aryl-2-chloroacetamides with ammonium thiocyanate. Their chemical structures were elucidated based on an extensive analysis of their spectroscopic data, including infrared, 1H NMR, 13C NMR, and mass analyses. The possible tautomeric forms of synthesized thiazolidine-4-ones were studied. The tautomerization equilibrium parameters, ΔH, ΔG, and Keq were calculated using the DFT/B3LYP methodology, where it has been indicated that the tautomeric form, phenylimino, is more favourable than the phenylamino form. The antibacterial and antioxidant properties of the synthesized thiazolidin-4-ones were investigated. 2-(Chlorophenyl-imino)thiazolidin-4-one displayed  potent antibacterial  activity against E. coli (88.46%) and S. aureus (91.66%), and  highest percent of inhibition (81.8%, ABTS assay).

 

KEY WORDS: N-aryl-2-chloroacetamides, Ammonium thiocyanate, 2-(Arylimino)thiazolidin-4-ones, Mulliken’s charges, Dipole moment, ABTS assay

Bull. Chem. Soc. Ethiop. 2023, 37(5), 1275-1286.                                                           

DOI: https://dx.doi.org/10.4314/bcse.v37i5.18
Optical and colorimetric sensing of toxic mercury ion using green synthesized silver nanoparticles
Authors: Kalam A. , G. Al-Sehemi A. , Ashrafuzzaman Md. , M. Sharif A. , Yadav and G. Du P.
Published: August 2023

ABSTRACT. In ancient, human used silver and silver salts but silver nanoparticles (AgNPs) have recently been found to be accepted as the result of green synthesis. Now a day, silver nanoparticles (AgNPs) have become extremely popular in the field of the sensor due to their remarkable and significant optical, chemical, and electrical properties. In this paper, we have reported the green and reasonably priced synthesis of silver nanoparticles using Acacia confusa leaf extract which acts as both capping as well as reducing agents. The optical sensing and morphology of the as prepared AgNPs were determined using ultraviolet-visible (UV-Visible) and scanning electron microscopy (SEM) analysis. The sensing of Hg2+ ion through colorimetric and optical have been studied by UV-Vis spectroscopy as well as the naked eye. Moreover, the SEM analysis showed that the volume of the extract had no considerable effect on the morphology except for size. The colorimetric and optical sensing study revealed that the as-synthesized AgNPs exhibited a good response with colorimetric and optical sensing activity specifically towards the toxic Hg2+ ion.

                                                                                                           

KEY WORDS: Green synthesis, AgNPs, Optical sensor, Ultrasonic method

 

Bull. Chem. Soc. Ethiop. 2023, 37(5), 1287-1298.                                                          

DOI: https://dx.doi.org/10.4314/bcse.v37i5.19
Synthesis and characterization of ternary composite g-C3N4-WO3/rGO for photocatalytic activity in degradation of methylene blue
Authors: Waheed Zainab , Ghazanfar Sadia , Usman Muhamamd , Muhammad Asif Hafiz , Tariq Muhammad , Mahmood Khalid , Haider Ali , Sirajuddin Muhammad
Published: August 2023

ABSTRACT. In the present research work, ternary composite g-C3N4-WO3/rGO was prepared by using ultrasonic assisted wet impregnation procedure. The prepared ternary composite was characterized by using FT-IR, powder XRD, SEM, and EDX techniques. FTIR studies confirmed the presence of characteristic bonds of the representative components in the composite by showing their characteristic peaks. The XRD pattern of ternary composite g-C3N4-WO3/rGO showed the presence of peaks responsible for monoclinic phase of pure tungsten oxide (WO3) and the characteristic peaks of graphitic C3N4 and GO. SEM studies of g-C3N4-WO3/rGO revealed the presence of randomly dispersed tungsten oxide particles in between agglomerated 2-D layers of carbon nitride and GO sheets. EDX data confirmed the phase purity in the form of elemental composition of the prepared composite and further provided At wt% of each element in the composite. Photocatalytic activity of the synthesized composite was evaluated by performing photocatalytic degradation test of methylene blue (MB). The rate of degradation was measured by using Shimadzu UV-1800 UV-Vis Spectrophotometer by recording the decreasing concentration of dye in terms of their absorbance values. The results exhibited that g-C3N4-WO3/rGO showed better degradation efficiency in 180 min.

 

KEY WORDS: Impregnation, Composite, Photocatalyst, Degradation, Methylene blue

Bull. Chem. Soc. Ethiop. 2023, 37(5), 1123-1131.                                                        

DOI: https://dx.doi.org/10.4314/bcse.v37i5.5
4-Aminoantipyrine-new organotin complexes, synthesis, structure and antioxidant activity
Authors: Jawad Hashim Dhekra , H. Al-Rikabi Eman , G. Hadi Angham , J. Baqir Sadiq
Published: August 2023

ABSTRACT. 4-Aminoantipyrine was used as ligand to prepare new complexes of triphenyltin, di-butyl and dimethyl-tin complexes by condensation reaction with the corresponding organotin chloride salts. The complexes were identified by different techniques, such as infrared spectra, (tin and proton) magnetic resonance and elemental analyses. The antioxidant activity of 4-aminoantipyrine and prepared complexes were studied by two different methods; Free radical scavenging activity DPPH and CUPRRAC methods. Tri and di-tin complexes gave high percentage inhibition than ligand with both methods due to tin moiety, also triphenyltin carboxylate complex was the best compared with the others.

 

KEY WORDS: 4-Aminoantipyrine, Condensation, Triphenyl tin chloride, DPPH and CUPRRAC methods

Bull. Chem. Soc. Ethiop. 2023, 37(5), 1163-1170.                                                         

DOI: https://dx.doi.org/10.4314/bcse.v37i5.9
Prospects and Challenges of Urban Pond Ecology: A Review
Authors: Mohammed Mansur Abdul , Babura Sulaiman Rufai , Buba Luka Fitto , Buba Luka Fitto , Yaro Abubakar Muhammad , Mohammed Hafsat Bala
Published: August 2023

Increase in human population has led to intense pressure on bionetworks that provides various services vital for living organisms survival. This steered to the increase in interest in exploring the panorama and encounters of pond ecology for policy implementation,  sustainable utilization that will guarantee sustainable management. This paper review the basic concepts of pond ecosystem, ecosystem  service, challenges and prospects of the pond ecosystem. Relevant materials were collected, reviewed and synthesis with a view to  understand the level of contribution, area of weakness therefore, the study could contributes in the area. Fish production, irrigation,  groundwater storage and discharge, reduction of flash flood and aesthetic were identified as part of ecosystem services rendered by the  urban pond. Garden production, research and aesthetic are some of the prospect while, waste disposing site, eutrophication, pollution  are considered as some of the challenges confronting pond ecosystem.