bluuebunny/crossref_metadata_2025 huggingface dataset:
Breakdown of the velocity and turbulence in the wake of a wind turbine – Part 1: Large-eddy-simulation study
Authors: Jézéquel Erwan , Blondel Frédéric , Masson Valéry
Published: January 2024

Abstract. A new theoretical framework, based on an analysis in the moving and fixed frames of reference (MFOR and FFOR), is proposed to break down the velocity and turbulence fields in the wake of a wind turbine. This approach adds theoretical support to models based on the dynamic wake meandering (DWM) and opens the way for a fully analytical and physically based model of the wake that takes meandering and atmospheric stability into account, which is developed in the companion paper. The mean velocity and turbulence in the FFOR are broken down into different terms, which are functions of the velocity and turbulence in the MFOR. These terms can be regrouped as pure terms and cross terms. In the DWM, the former group is modelled, and the latter is implicitly neglected. The shape and relative importance of the different terms are estimated with the large-eddy-simulation solver Meso-NH coupled with an actuator line method. A single wind turbine wake is simulated on flat terrain, under three cases of stability: neutral, unstable and stable. In the velocity breakdown, the cross term is found to be relatively low. It is not the case for the turbulence breakdown equation where even though the cross terms are overall of lesser magnitude than the pure terms, they redistribute the turbulence and induce a non-negligible asymmetry. These findings underline the limitations of models that assume a steady velocity in the MFOR, such as the DWM or the model developed in the companion paper. It is also found that as atmospheric stability increases, the pure turbulence contribution becomes relatively larger and pure meandering relatively smaller.
A Case-Based Discussion Supporting Ethics Education in Medical Schools
Authors: Ladner Liliana R. , Swope Mark G. , Whitehead Phyllis
Published: January 2024

Background: Ethics education in medical schools lacks uniformity, yielding uncertainty when providers are faced with ethically complex patients. Without streamlined ethics training, providers are less confident in their ability to provide ethically appropriate care for all patients, particularly for those most ethically vulnerable. This case report seeks to elucidate ethical concerns when treating an ethically complex patient. Subsequently, the need for early ethics education is substantiated.
The Case: A 58-year-old unhoused patient with no known medical history presented to the emergency department (ED) for evaluation of an infected foot wound. Imaging confirmed acute gas gangrene osteomyelitis. The patient refused the recommended below-the-knee amputation (BKA) but was amenable to intravenous antibiotic therapy. He was subsequently determined by psychiatry to lack decisional capacity and met the DSM-5 criteria for schizoaffective psychosis. Subsequently, the patient’s brother deferred decision-making to the patient, who he believed should make his own medical decisions. Following an ethics consultation, the brother’s decision, and by proxy the patient’s, was respected.
Conclusion: In this case, the patient’s autonomy was prioritized, despite his high level of ethical vulnerability. Ethically conscious treatment was provided despite the implicit stigmatization of homelessness and psychiatric illness. However, an ethics consultation was necessary for this to occur. Ultimately, this paper should serve as a call to action for standardization and prioritization of ethics education during and beyond medical training.
From Symptoms to Diagnosis: A Medical Student’s Experience in Solving Her Own Mystery
Authors: Franke Madeline
Published: January 2024

While studying medicine, students may find themselves worrying that they have a disease just because they have been closely learning about it. However, what happens when a medical student is actually experiencing symptoms that are familiar to them? This essay highlights the experience of a third-year medical student who found the answers she was looking for regarding her own health while on clinical rotations.
Multifocal Acquired Demyelinating Sensory and Motor Neuropathy (MADSAM) with Cranial Nerve Involvement. Case Report
Authors: Schneider Marc R.
Published: January 2024

BACKGROUND: The multifocal acquired demyelinating sensory and motor neuropathy (MADSAM) is a rare adult onset subvariant of the chronic inflammatory demyelinating polyneuropathy (CIDP). The latter affects 1-9 cases per million adults and may pose a diagnostic challenge (antibody and electrophysiological overlap). The hallmark of the disease spectrum is an immune mediated structural myelin breakdown. Urgent differentiation of MADSAM from the other variants of CIDP is indicated due to its distinct pathogenesis, management, and long-term therapy response to immunomodulators. The disease presents with progressive asymmetrical motor and sensory deficits initially located typically in one limb. Rarely the disease manifests with cranial nerve involvement. The prognosis of patients suffering from MADSAM is reliant on rapid diagnosis and therapeutic response, but neurological deficits reside. Due to its rarity and diagnostic challenge, misdiagnosis is common.
THE CASE: A 84 years old Caucasian male diagnosed with multifocal acquired demyelinating sensory and motor neuropathy (MADSAM) presented to our department with progressive neurological deficits. His neurological examination and history revealed paresthesia, hypesthesia, diminished vibration sense (pallhypesthesia), distally pronounced paresis in the upper extremities with a wrist drop on the left hand. Gait examination exposed coordination deficits. The history of the patient and the initial presentation of the disease in 1998 exemplifies the diagnostic challenge of MADSAM, due its mimicry of other diseases, like multifocal motor neuropathy (MMN). The initial symptoms were asymmetrical motor and sensory deficit starting at the upper extremities. Before the patient presented to our facility, he was diagnosed with neuroborreliosis and treated accordingly. The correct diagnosis was set at our department according to clinical presentation, nerve conduction velocity parameters and conduction block during electroneurography, typical changes in nerve ultrasound suggesting an inflammatory neuropathy and fasciculations of the gastrocnemius muscle. After an ineffective steroid therapy and long standing intravenous immunoglobulins the patient is now on a therapeutic scheme of 1000mg Rituximab (CD20 Ab) every 6 months and 1000mg Mycophenolatmofetil. The patient subjectively reports improvement of his status and slower progression of the disease since the Rituximab paradigm. Furthermore, an evident atrophy of the orbicularis oculi muscle was now noted during follow up examination, which highlights facial nerve involvement.
CONCLUSION: This case exemplifies the challenge of diagnosing the multifocal acquired sensory and motor neuropathy, but prompt diagnosis and therapeutic intervention is associated with a better prognosis and slower progression of the disease in patients suffering from MADSAM.
Dermatological Examination Training: Shaping Careers Through Hands-On Practice
Authors: Barbalata Didina-Catalina , Toma Cristian
Published: January 2024

BACKGROUND: Choosing a career path represents a decision of immense significance in the lives of aspiring medical professionals and is influenced by several pivotal factors such as: clinical exposure, hands-on experience and interaction with specialists in the field. Dermatology represents one speciality in which hands-on experience is crucial and medical simulation training can ensure an innovative and transformative tool to develop the skills needed for dermatological evaluation.
AIM: Our research explores the impact of participating in hands-on dermatological evaluation training on the decision to pursue a career path within this field. By analyzing the participants’ views regarding the training, their skill self-assessment and the objective evaluation of theoretical knowledge, we aim to analyze how this type of workshop shapes professional goals.
METHODS: We conducted a single-center analysis on the training experience of 50 medical students, divided in groups of ten. The training, conducted by a dermatologist, consisted of 1-hour theoretical presentation and 3-hour bedside practice, the students examining each other alternately. A ten questions knowledge assessment questionnaire was used to evaluate the participants before and after the workshop. Additionally, the students were  surveyed regarding their views on the impact of this training on their decision to pursue a career in dermatology and the self-assessment pre- and post-training on a five-point Likert scale.
RESULTS: We observed a 48% increase in the knowledge assessment scores (before: 5.26±1.33 out of 10, after: 7.8±0.88 out of 10). A similar increase was observed in the participants’ self-assessment scores, as they doubled (before: 1.76+/-0.62 out of 5, after: 3.84+/-0.88 out of 5). Although 60% of the participants were not interested in pursuing a career in dermatology before the training, the hands-on experience determined 64% to take this speciality into consideration as a potential career path. Unanimously, the participants agreed that this training represents a valuable addition to the classical clinical curriculum as it allows hands-on practice which could improve their confidence in the future patient interactions.
CONCLUSION: In summary, our research highlights the importance of integrating hands-on training into medical education to better prepare students for their roles in healthcare and adapt to evolving medical practices.
Obstructive Sleep Apnea In An Indian Population: A Cross Sectional Study
Authors: Khan Asmi Fatima
Published: January 2024

BACKGROUND: Obstructive sleep apnea (OSA) is a sleep-related breathing disorder, associated with impaired ventilation during sleep and disruption of sleep; which is defined on the basis of nocturnal and daytime symptoms as well as sleep study findings. It’s associated with certain risk factors, namely – obesity, male sex, advancing age, hypertension, chronic consumption of alcohol and sedatives, along with positive family history. Any unexplained systemic or pulmonary hypertension, new-onset arrhythmias, polycythemia, personality and mood changes (including depression, anxiety), or cognitive defects are often linked to sleep disturbances and OSA.  AIMS: Consequently, this study had 2 primary aims that were intended to be achieved by certain objectives: To screen an apparently healthy adult Indian population for prevalence of OSA amidst them, by – assessing the cardinal predisposing factors;and appraising extent of daytime sleepiness, fatigue and sleep status of volunteers. To significantly curb the incidence of OSA, by – counselling affected individuals to remodel their modus vivendi, and creating awareness amongst general public.
METHODS: Subsequent to procuring assent from the Institutional Ethics Committee, for this cross-sectional, time-based study (of 3 months), a multiple-choice questionnaire was responded by 1078 Indian adults. Considering the specific target population of each, this questionnaire was an amalgamation of the three standard, subjective, clinical tools, namely: Berlin Questionnaire (BQ), STOP-BANG Questionnaire (SBQ), Epworth Sleepiness Scale (ESS). Responses were thoroughly and discretely analyzed, using the elementary Microsoft 365 Excel, in tandem with IBM SPSS ver29. Suggested appropriate lifestyle changes to those seemingly affected with OSA, by reaching out through the affiliated email address (thesleepperils@gmail.com). OSA Awareness campaigns organized for the general public.  
RESULTS: According to the data collected (margin of error ±3% at 95% confidence interval), 11.78% and 5.75% of the participants were found highly vulnerable to OSA, using the BQ and SBQ tools, respectively. ESS depicted that more than one-fourth of the participants are susceptible to OSA. In congruence with similar studies conducted across the globe, this research has also concluded that males are significantly more prone to OSA than females.
CONCLUSION: The public health impact of obstructive sleep apnea is escalating, particularly in developing countries like India, because of increasing urbanization leading to sedentary lifestyles, and its potential contribution to the worsening rates of cardiovascular disease, diabetes and other co-morbidities. Identifying and addressing lifestyle and behavioral factors as well as comorbidities that may be exacerbating OSA, by budding clinicians is a must for a comprehensive management of obstructive sleep apnea. Consequently, the ultimate aim of this study was to diagnose obstructive sleep apnea at an early stage; along with analyzing the national burden of the ailment.
Facebook Use and Mental Health: Gender and Academic Year Variations in Symptoms
Authors: AlSamhori Jehad Feras , Alsabbah Alameen , Mahafzah Lama Sami , AlSamhori Abdel Rahman Feras , AlSamhori Ahmad Feras
Published: January 2024

BACKGROUND: In an increasingly digital age, social media, particularly Facebook, has become an integral part of college students' lives. This study seeks to explore how gender and academic year may influence Facebook addiction and its impact on mental health among this demographic.
METHODS: A cross-sectional study was conducted. The survey includes sociodemographic questions and BFAS, GAD-7, and BFAS scales. Data analysis was conducted by SPSS, with statistical tests conducted at a 95% confidence level. Normal distribution was tested with Kolmogorov-Smirnov test. Sperman’s correlation was conducted to assess any potential correlation and the Mann-Whitney test was used to investigate any significant differences in the mean score.
RESULTS: This study included 1,098 college students aged 18 to 25 (mean age 21.35). A majority (62.8%) of the participants identified as female, and notably, 61.5% were clinical medical students. The Bergen Facebook Addiction Scale (BFAS) was utilized yielding a mean score of (mean: 16.43, SD: 5.934).. Interestingly, most participants reported "Rarely" or "Very Rarely" feeling restless or troubled when unable to use Facebook (64.5%). The Generalized Anxiety Disorder Questionnaire (GAD-7) unveiled that participant experienced mild anxiety, with a mean score of 8.63 (SD: 4.928). Approximately 43.2% reported mild anxiety. Depression, assessed using the Patient Health Questionnaire-9 (PHQ-9), reflected moderate depression with a mean score of 11.70 (SD: 6.39). Correlations were explored among BFAS, GAD-7, and PHQ-9 scores. A strong positive correlation emerged between GAD-7 and PHQ-9 (r: 0.634, p-value < 0.001). Furthermore, there was a significantly moderate positive correlation between BFAS and PHQ-9 (r: 0.344, p-value < 0.001) and a significantly small positive correlation between BFAS and GAD-7 (r: 0.282, p-value < 0.001). The Mann-Whitney Test was employed to investigate gender and academic year differences in scores. Female participants exhibited significantly higher scores than males in BFAS (p-value = 0.028), GAD-7 (p-value < 0.001), and PHQ-9 (p-value = 0.004). Additionally, preclinical students reported higher scores than clinical students in BFAS (p-value < 0.001) and PHQ-9 (p-value < 0.001).
CONCLUSION: In summary, this study sheds light on the complex interplay between Facebook use, mental health symptoms, gender, and academic year among college students. It reveals a moderate level of Facebook addiction and varying degrees of anxiety and depression. Gender disparities are evident, with females reporting more severe symptoms. Furthermore, academic year impacts these factors, with preclinical students exhibiting higher scores. Understanding these dynamics is crucial for tailoring interventions and support mechanisms to address the unique challenges faced by college students in the digital age.
Overlap Syndrome Between Sjögren's Syndrome and Systemic Sclerosis
Authors: Londoño Amariles Alejandro , Holguín Muñoz Bryam Fernando , Saldarriaga Rivera Lina María
Published: January 2024

BACKGROUND: Overlap syndrome is a condition in which a patient experiences symptoms that correspond to two or more of these classification standards. More commonly, the overlap is limited to one or more manifestations of each disease. Sjögren's syndrome is a systemic autoimmune disease characterized by the presence of a dry syndrome, primarily xerostomia and xerophthalmia, originating from dysfunction of exocrine glands. Conversely, systemic sclerosis is a rare autoimmune disease characterized by fibrosis development in the skin, internal organs, and vasculopathies.
THE CASE: Our case report presents a 62-year-old woman with a history of Sjögren's syndrome, who exhibited symptoms of xerostomia, xerophthalmia, xerodermia, and had anti-Ro antibodies exceeding 200, along with ultrasound findings of chronic sialadenitis. The patient was under treatment with hydroxychloroquine, pilocarpine, and deflazacort. She attended the rheumatology outpatient clinic for routine follow-up of her disease. During the evaluation, bilateral sclerodactyly and "salt and pepper" lesions on the limbs were observed, along with two reports of ANA with titers of 1:2650 and a centromere pattern. Due to suspicion of coexistence of limited systemic sclerosis, anticentromere antibodies were requested, yielding a positive result, while anti-Scl 70 antibodies were negative. This confirmed the diagnostic suspicion, and azathioprine 50 mg every 12 hours and colchicine 0.5 mg daily were added to her therapy.
CONCLUSION: Although Sjögren's syndrome and systemic sclerosis can manifest independently, in certain instances, both conditions overlap. It is worth noting that among the various overlap syndromes related to connective tissue diseases, this overlap is infrequent. However, within connective tissue diseases, systemic sclerosis tends to exhibit overlap more frequently, reported in up to 20-30% of cases. In cases of connective tissue diseases, consideration should always be given to overlap syndromes, involving a meticulous physical examination and careful assessment of laboratory results to avoid overlooking conditions that may negatively impact patients' future quality of life.
Efficacy of Triple Prophylaxis for Prevention of Graft-Versus-Host Disease in Matched Sibling Allogeneic Peripheral Blood Hematopoietic Stem Cell Transplantation in Pediatric Patients
Authors: Tienda-López Fernando , Díaz-Ruiz Mariana , Marcos-García Jorge , González-Llano Óscar , Jiménez-Antolinez Valentine
Published: January 2024

BACKGROUND: Graft-versus-host disease (GVHD) continues to compromise the overall success of allogenic hematopoietic stem cell transplantation. It is the most important cause of morbidity and non-relapse mortality after allogeneic hematopoietic stem cell transplantation for malignant disease. In adults, post-transplant cyclophosphamide (Cy-PT) has been shown to be a feasible, economically accessible, and effective strategy to reduce the incidence of GVHD in matched sibling hematopoietic stem cell transplantation in combination with a calcineurin inhibitor plus mycophenolate mofetil (MMF).
AIM: Demonstrate the clinical benefit of Cy-PT plus a calcineurin inhibitor combined with MMF for GVHD prophylaxis in HLA-matched, related peripheral blood stem cell transplants in pediatric patients with malignant hematologic neoplasms compared to standard therapy in historical controls.
METHODS: A retrospective study was conducted on 22 pediatric patients with malignant hematologic neoplasms who underwent HLA-matched related peripheral blood allogenic stem cell transplantation (alloSCT) between July 2012 and December 2022. A comparison was made between two groups, one with triple prophylaxis using Cy-PT, cyclosporine (CsA), and MMF, and a historical cohort that received standard GVHD prophylaxis based on CsA and methotrexate (MTX). Patients were identified from a hospital registry. Descriptive and inferential statistics will be reported, using SPSS version 25 for analysis.
RESULTS: Twenty-two patients received HLA-matched alloSCT from first-degree relatives genotypically identical in HLA-A, HLA-B, and HLA-DRB1 alleles. The demographic characteristics of both groups are summarized in the table. No patient experienced primary graft failure, sinusoidal obstructive syndrome, or hemorrhagic cystitis. Acute GVHD grade II-IV did not develop in patients who received Cy-PT, whereas in the CsA/MTX prophylaxis group, 1 (9%) grade IV patient was observed who died due to this cause before day 100. Two patients (18%) developed Moderate/Severe GVHD in the CsA/MTX group, and 1 (9%) had moderate GVHD in the Cy-PT group. Two-year overall survival was similar between the two groups (Cy-PT 53% and CsA/MTX 67%), as was event-free survival (PTCy 48% vs. CsA/MTX 61%).
CONCLUSION: Peripheral blood represents a feasible option in our setting due to rapid graft engraftment, short hospital stays, and low incidence of primary graft failure, but with a higher incidence of GVHD as reported in the literature. We explored the efficacy and safety of triple prophylaxis for HLA-matched alloSCTs from peripheral blood using Cy-PT + CsA + MMF in a small group of patients, with outcomes slightly better than standard prophylaxis. These preliminary results motivate us to continue with this new regimen.
Effect of Libyan Sidr honey on thyroid gland damage induced by cigarette smoke in male rats.
Authors: Alshailabi Eda , Al-Zail Nura , Darwesh Narmeen
Published: January 2024

The toxicity of cigarette smoke (CS) products is through vast production of reactive oxygen species. So, this study aimed to evaluation the effect of Libyan Sidr honey on thyroid gland damage induced cigarette smoke in male rats. 28 adult male rats were divided into four groups; Group 1: Control group (NC); group 2: rats were received the Libyan Sidr honey (LSH) orally (100 mg/kg b.w./d.) for 4 w.; group 3: rats were exposed to 5 lit of the Karelia red cigarette smoke (KRC) (5 times/d.) by a machine smoking for 4 w.; and group 4: (LSH+KRC) rats were received the LSH orally (100 mg/kg b.w./d.) for 2 w., then the rats were exposed to the KRC generated by a machine smoking for 4 w. with the continuation of LSH doses. The result revealed that T4 showed, non-significant decrease in the KRC group compared to the NC group. While,  it was significant declining in T3 with a significant increase in TSH levels as compared to NC group. Moreover, the (LSH+KRC) group showed a noticeable improvement in T4 & T3 as compared with the KRC group. Furthermore, the (LSH + KRC)  group showed a significantly positive change in TSH as compared with KRC group. The histopathological examination of the thyroid of rats after exposure to KRC alone showed different histopathological changes when compared with control group. Whereas,  the (LSH + KRC) group showed, improve thyroid arrangement with normal thyroid follicles when compared with KRC group. Conclusion, results indicate that the Libyan Sidr honey antioxidant activity against thyroid tissues damage induced cigarette smoke in adult male albino rats.
استخدام الخوارزميات الجينية لضبط وتحسين المعاملات الفائقة لشبكات العصبية خدام الخوارزميات الجينية لضبط وتحسين المعاملات الفائقة لشبكات العصبية
Authors: عويدات بدر
Published: January 2024

توصلت هذه الدراسة إلى أن الخوارزمية الجينية تلعب دورًا حاسمًا في ضبط وتحسين المعاملات الفائقة لشبكات العصبية.MLP  تم استخدام المعاملات الرئيسية، وهي حجم الطبقات الخفية، وعدد الدورات (الحقب)، ومعدل التعلم، وخوارزمية التحسين، لتحقيق أداء محسن للشبكة العصبية. تم استخدام مجموعة بيانات زهرة اللوتس ومجموعة بيانات الأرقام المكتوبة بخط اليد لتقييم أداء النموذج. وقد تم الحصول على نسبة دقة تبلغ 100% لمجموعة بيانات زهرة اللوتس، مما يشير إلى تحقيق أداء ممتاز للتصنيف. وبالنسبة لمجموعة بيانات الأرقام المكتوبة بخط اليد، تم الحصول على نسبة دقة تبلغ 94%، مما يدل على أداء جيد وفعالية النموذج في التعرف على الأرقام. باستخدام الخوارزمية الجينية، تم تحسين المعاملات الفائقة للشبكة العصبيةMLP، مما أدى إلى تحسين الأداء وزيادة دقة التصنيف في مجموعتي البيانات المستخدمتين. تؤكد هذه النتائج أهمية وفاعلية الخوارزمية الجينية في تحسين ضبط المعاملات الفائقة للشبكات العصبية، مما يمكن من تحسين أداء النماذج وتحسين قدرتها على التعرف على الأنماط والتصنيف بدقة.
Analysis of Potassium Bromate Contents of Commonly Consumed Loaves of Bread Samples in Tokra-Libya
Authors: Rahil Salwa , El sharaa Intisar
Published: January 2024

Bread is one of the most popular foods consumed worldwide. It is a very popular foodstuff consumed in almost every house in Libya as well as in Tokra city as breakfast.  Potassium bromate is an oxidizing agent that has been used as bread additive added to preserve the flavour and teste of the bread but continuing to consume it endangers health as a result of its carcinogenic effect, as it remains in the loaf of bread without disintegration, For this reason, Potassium bromate is banned in several countries, including Brazil, Canada, the European Union and the United Kingdom and the FDA has since 1991 merely encouraged bakers to voluntarily stop using it, with somewhat limited success. In this study, levels of residual bromate were determined in 21commercial breads and traditional loaf types from 7 automated bakeries, except for one, a manual bakery randomly were collected from different local bakeries in Tokra city and its environs (Libya), in Feb. 2023. The tested samples of bread were analyzed using two mothed (qualitative and quantitative analyses) a spectrophotometric method of bromate analysis. Bromate concentrations ranged from 0.07-0.29 μgg-1, with an overall mean concentration of 0.14±0.07 μgg-1(ppm). Significant differences were noticed.
Forecasting Short-Term Peak Load Demand in the Libyan Power Grid using Multiple Regression Model
Authors: Ihbal Abdelbaset , Khalleefah Abdulwahid
Published: January 2024

The demand for energy, particularly electricity, has been rising rapidly around the world and plays an important role in socio-economic development, especially in developing countries. Electricity load forecasting is a key task in power plant planning, as well as in efficient operation and sustainable growth of modern electricity distribution networks. This is to make Balancing the relationship between electricity demand and supply. The main purpose of this study is to investigate the impact of meteorological factors such as temperature, relative humidity and wind speed on short-term electricity demand forecasts in Libya. A model has been developed by means of multiple regression analysis and trend method techniques. It was found that there is a good correlation between the factors and electricity use. Since the final model exhibits some little deviation, this approach has proven to be helpful for predicting Libya's electricity consumption.  The findings are analyzed and discussed in order to offer recommendations for using this approach for forecasting the short-term demand of electricity.
Influence of Incorporating PVC Waste on the Mechanical Properties of Cement Mortar
Authors: Altwair Nurdeen , Elghwaria Heba
Published: January 2024

Currently, recycling of industrial wastes to reduce the environmental impact is the major concerns of researchers. Polyvinyl chloride (PVC) is one of the  waste materials worldwide, with considerable impacts on environmental. Recycling PVC wastes in the concrete or mortar industry is one of the adopted ways to decrease such impact. The purpose of this paper is the reuse of PVC waste deriving from the workshops manufactured doors and windows which made of PVC material. The waste of polyvinyl chloride was collected from one of the factories located in AL-Khoms, then the waste was sieved, the sample that passed through Sieve No.4  and  retained on sieve No.10 was taken. The PVC waste  proportions of (0.06 ˛ 0.08 ˛ 0.1) by weight of cement was added to the mix mortar. The tests carried out during this study were; air content of fresh cement mortar, flow table, dry density of hardened cement mortar, flexural and compression, free shrinkage and finally ultrasound pulse velocity. The results obtained showed a significant improvement in the sound insulation and a decrease in the dry density of the mortar. While the compressive and flexural strength results were slightly lower compared to the standard mortar. In addition, a decrease in the values of flow, free shrinkage and air content was observed with an increase in the PVC content. Nevertheless, the mortar obtained contributes to the conservation of natural resources and maintains the mechanical properties of the cement mortar in structural applications.
تحديد اهم مشاكل استزراع بعض ترب منطقة إم الغزلان غرب منطقة سبها-ليبيا
Authors: بن المسكين أحمد , السحبو عبدالحفيظ
Published: January 2024

أجريت هده الدراسة في منطقة ام الغزلان الواقعة في الجانب الغربي من مدينة سبها. اختيرت أربع قطاعات تمثل تربة المنطقة. بينت الخواص المورفولوجيا للتربـة، وجود تشابه واضح بينها كعمق التربة تكون في حدود العميقة (أقل من 100سم). وتحتوي التربة على الافق التشخيصي السطحي الفاتح أي الشاحب ( Ochric horizonلونها الفاتح (الاصفر). وقوام السائد هو الرملي، رملي سلتي، سلتي رملي. واتضح من التحليل الكيميائي، انها متأثرة جدا بالأملاح وخاصة في الطبقة السطحية، لجميع القطاعات. وpH التربة تميل إلى القلوي (7.7- 9.6). وكدلك ارتفاع نسبة للكاتيونات والانيونات. وكربونات الكالسيوم الكلية بنسب مرتفعة تصل (18.75%)، كما في القطاع الاول عند 20-30سم والقطاع الرابع عند من (60 الى 90سم). مع ظهور كربونات الكالسيوم في شكل حجارة أو شكل بلاطة كربوناتية واسفنجية الشكل على السطح، خاصة في القطاع الرابع. ووجد ان تصنيف القطاعات عند مستوي تحت المجموعة الكبرى للتصنيف الامريكي تقع القطاعات تحت مستوى تصنيفي: ـ   Typic torriorthents   وان تربة المنطقة تعاني من بعض مشاكل استزراع، كارتفاع كمية الاملاح ودرجة تفاعل والقوام الخفيف ونسبة كربونات الكالسيوم في التربة. نتيجة ظروف التربة وصفاتها. وتأثير المناخ الـسائد مـن جهة، بالإضافة إلى استنزاف بعض العناصر من قبل النبـات. فان الاستثمار الزراعي هذا لتربة يتطلب اجراء عمليات استصلاح قبل الزراعة، للرفع من قدرتها الانتاجية، بداية من غسيل للتربة. وإزالة وكشط لكربونات الكالسيوم الموجودة كحجارة، قبل عملية الزراعة. وللفصل في هذا الموضوع لابد من إجراء مزيد مـن الدراسة، ولاسيما مراقبة حالة الجفاف ومد التربة بالعناصر الغذائية المختلفة.
Identification of Ideational Grammatical Metaphor in Saraiki Language and its Deployment in Different Registers of Saraiki and English: A Contrastive Study
Authors: Malik Sobia
Published: January 2024

Grammatical Metaphor refers to a set of lexico-grammatical choices
offered by a language to create formality of expression and
pithiness. Firstly, this linguistic feature was discussed by Halliday in
1985 who classified one of its types -the Ideational Grammatical
Metaphor (IGM) into 13 types and regarded it as a scientific or
academic discourse characteristic. The IGM phenomenon is now
considered central in SFL (Systemic Functional Linguistics)-
inspired language teaching and significant for translators in
understanding the Metafunctional meanings across SL (Source
Language) or TL (Target Language). However, this worthwhile
linguistic phenomenon has been understudied in the context of
Pakistani languages. This work studies the Saraiki language for its
identification and deployment in different English and Saraiki
registers. The study follows the SFL Grammatical Metaphor Theory
of Halliday (1998; 1999; 2006) as a theoretical framework and
Content analysis as a tool for the identification and categorization of
IGMs. The text consisted of the undergraduate course books of
Saraiki and English, and its sample is delimited to 15 excerpts from
both languages. The research results in the identification of all
thirteen IGM categories in Saraiki, as in English; while regarding the
IGM deployment in different registers of both languages, it is
observed that the extent of IGM usage in Saraiki written text (1.14
per Clause) is greater than in English (0.83 per Clause), and
academic text of both languages is found to have more instances of
Ideational Grammatical Metaphors than the works of fiction in
these languages. The study contributes to the body of research on
Grammatical Metaphor and SFL-inspired comparative studies on
Indo-Aryan languages of the world.
Tracing Death as a Political Instrument: A Study of Osama Alomar’s Selected Collections of Flash Fiction
Authors: Shahid Hamas
Published: January 2024

This research article analyzes two collections of flash fiction
including Fullblood Arabian (2014) and The Teeth of the Comb and
Other Stories (2017) written by Osama Alomar, a Syrian refugee
author. Guided by the theoretical framework of necropolitics as
proposed by Achille Mbembe, this article investigates the constant
presence of death and its multifaceted role in the wake of the
Syrian civil war as portrayed in Alomar’s selected collections of
flash fiction. The article attempts to study how death becomes an
instrument in the civil war, widely used, manipulated, and
exploited by various actors during the conflict-ridden period, each
employing it differently. Although the selected collections of flash
fiction demonstrate that death takes on many forms and performs
multiple functions in the backdrop of the Syrian civil war, this
research article narrows its scope to the analysis of how death is
used as a political pawn and a political statement. At the outset of
this research, it is postulated that the ruling Syrian regime
transforms death and its fear into an instrument to intimidate and
subdue Syrian civilian characters, thereby downplaying death as
merely a political pawn. On the contrary, death also emerges as a
political statement of the Syrian civilian characters as they begin to
embrace death as a form of political activism to bring about social
and political change in Syria. Invoking Catherine Belsey’s textual
analysis method, some flash fiction stories from the selected
collections are analyzed to study how the ruling Syrian regime and
civilian characters reconfigure death in the wake of the Syrian civil
war.
The things I fear for us: Australian climate fiction and the emergence of ecological consciousness
Authors:   , Holdsworth Christopher
Published: January 2024

This practice-led research explores the challenges of writing about climate change. Drawing upon ecocriticism and cultural materialism, this project investigates how speculative fiction holds value in depicting these topics, and a growing trend in Australia where novelists are nurturing a consciousness in their characters of how economic factors are destroying the environment. This thesis describes this emergence as ‘ecological consciousness,’ defining the term, analysing its use in two contemporary Australian novels, and exploring its practical applications.
Talent identification: line managers’ perceptions of their own requirements as talent spotters
Authors: Golik Mariela , Rita Blanco María
Published: January 2024

Identification is a key step in the organizational talent management process. Even though evaluating potential through an objective approach, integrating multiple methods, is recommended, many organizations rely upon line manager nominations as their main sources of identification. Given their central role, this study analyses the line managers’ attributes required to carry out an effective talent identification process. This qualitative study was drawn upon social cognition (social psychology framework) and talent identification literature with a sample of 20 managers, belonging to a multinational of Argentine origin, who described their experiences and requirements as talent spotters through semi-structured interviews. Results suggest that observation skills, listening and communication skills, cognitive skills, intuition, empathy, identification as part of the managerial role, low aversion to risk, vocation, predisposition to learn, resilience, and commitment are important attributes in the identification process. The present study provides a map of the talent spotter´s attributes that are necessary to assess employees´ potential.
Educación financiera y servicios de microcrédito en empresas de la ciudad de Bogotá – Colombia
Authors: Barrera Lievano Jhony Alexander , Parra Ramirez Sandra Miyey
Published: January 2024

La importancia de la educación financiera se ha declarado por diferentes organizaciones a nivel mundial. Las microfinanzas son un movimiento de alcance mundial que en su desarrollo propenden por la masificación del crédito llevándolo a poblaciones, incluidas empresas, que se encuentran excluidas del sistema financiero ordinario, a través de su principal producto, el microcrédito. El objetivo de esta investigación es determinar si existe relación entre diversas variables asociadas a Micro, Pequeñas y Medianas empresas y el uso de servicios de microcrédito, para lo cual se toma como población de estudio a empresas de la ciudad de Bogotá. Se desarrolla un estudio transeccional, con alcance correlacional – descriptivo. Como resultados se encontró la existencia de asociación entre variables como el género y tamaño de empresa, género y estudios, tamaño de empresa y acceso a servicios de microcrédito, estudios y acceso a servicios crediticios; también se identificó la existencia de correlación entre las variables de percepción de peligro de tomar servicios microfinancieros con instituciones formales y el costo de estos. La educación financiera es un factor determinante para que las personas puedan tomar decisiones consientes en el campo de sus finanzas personales.
Contribución del sector industrial manufacturero al producto interno bruto del Ecuador
Authors: Moreno-Morales Augusto , Navarrete-Fonseca Mario , Molina-Herrera Jenny , Osorio-Jiménez Katherine
Published: January 2024

La industrialización es el principal mecanismo de desarrollo económico en un país, que es medido a través del PIB. En el Ecuador, las actividades las actividades con mayor participación por ingresos son las actividades de producción y operaciones de metalmecánica como lo es la industria manufacturera. Por tal razón, el propósito de la investigación fue determinar el impacto del sector manufacturero dentro del PIB global, mediante el análisis de los ingresos del sector y la variación del PIB durante el periodo 2015-2022 con proyección hacia el año 2023. El método de análisis datos fue el modelado de regresión lineal. Los hallazgos revelaron que, los ingresos del sector crecieron en 0,10% con relación al año 2022. Es decir, el ingreso de la industria mantuvo un crecimiento constante en comparación al PIB del periodo analizado como resultado de las estrategias post-covid. Así pues, se determinó una relación directa entre las variables de estudio con una participación promedio de 26,66% en relación a otros sectores productivos tanto en bienes como servicios.
Políticas públicas de descolonización educativa en Colombia
Authors: Vidal Torrecilla Ana Cecilia , Mieles Barrera María Dilia , Acevedo Correa Diofanor
Published: January 2024

En este artículo, se aborda el tema de las políticas públicas de descolonización educativa en Colombia enfocándose en su desarrollo, impacto y desafíos. Su objetivo es analizar las políticas públicas de descolonización educativa en Colombia. Se realiza una revisión bibliográfica exhaustiva para comprender el contexto histórico y actual de la descolonización educativa en el país y se identifican las principales estrategias implementadas por el gobierno colombiano en este ámbito. Las políticas de descolonización educativa han contribuido a un mayor reconocimiento de la diversidad cultural y étnica en Colombia. Esto es importante, ya que reconoce la pluralidad de identidades y saberes presentes en el país. Sin embargo, persisten desafíos en términos de falta de recursos, disparidades regionales y resistencia a los cambios. A pesar de los avances, el proceso de descolonización educativa en Colombia es un trabajo en curso. Se requiere un mayor compromiso para garantizar la plena implementación de políticas y prácticas inclusivas.
Duchamp Queer. O la máquina deseante Duchamp
Authors: Alliez Eric
Published: January 2024

Duchamp Queer. O la máquina deseante Duchamp
La ley del género: Derrida y Blanchot
Authors: Llevadot Laura
Published: January 2024

Este trabajo se propone desentrañar las aportaciones de Derrida a la teoría del género a partir del análisis de su lectura de la obra de Blanchot La foile du jour. Con este fin se analizará el contexto de aparición de este análisis en el Seminario sobre el don (Donner le temps, II), su relación con la cuestión del relato y el don, así como las figuras de la doble invaginación, el incesto, la ley y la norma. El propósito final del artículo es mostrar, a partir del análisis derridiano del texto de Blanchot, una modalidad de subversión de la ley del género que excede, y complementa, aquella planteada por Butler a partir del relato de Kafka Ante la ley.
3. THỰC TRẠNG RỐI LOẠN CHỨC NĂNG TUYẾN GIÁP Ở BỆNH NHÂN NỮ VÔ SINH ĐẾN KHÁM TẠI BỆNH VIỆN PHỤ SẢN TRUNG ƯƠNG
Authors: Hằng Thân Thị Bích , Trâm Nguyễn Thị Phương , Sơn Trịnh Thế , Hùng Hồ Sỹ
Published: January 2024

Mục tiêu: Nghiên cứu tỷ lệ rối loạn chức năng (RLCN) tuyến giáp và nhận xét một số yếu tố liên quan giữa RLCN tuyến giáp với đặc điểm bệnh nhân (BN) nữ vô sinh tại Bệnh viện Phụ sản Trung ương.

Đối tượng và phương pháp: Nghiên cứu cắt ngang 473 phụ nữ vô sinh được xét nghiệm FT4, TSH. RLCN tuyến giáp được đánh giá dựa trên mức TSH trên hoặc dưới khoảng tham chiếu bình thường (TSH: 0,45 – 4,12) theo ATA 2012. Yếu tố liên quan được khảo sát gồm: tuổi, BMI, tình trạng kinh nguyệt, thời gian vô sinh, tiền sử sản khoa (thai lưu, sảy thai), mức prolactin máu, AMH.

Kết quả: Tỷ lệ RLCN tuyến giáp trong số các BN nữ vô sinh là 13,32%, trong đó suy giáp là 7,82% (suy giáp DLS là 4,50% và suy giáp LS là 2,32%) và có cường giáp là 5,50%, trong đó cường giáp DLS chiếm 3,60% và cường giáp LS chiếm 1,90%. Tỷ lệ RLCN tuyến giáp tăng cao hơn ở nhóm phụ nữ lớn tuổi, thường gặp ở nhóm tuổi ≥35 với tỷ lệ trong nhóm cường giáp là 50% và suy giáp là 46,65%. Ở BN vô sinh, 26,92% nhóm cường giáp và 27,03% nhóm suy giáp có tiền sử sảy thai và thai lưu. Phụ nữ trong nhóm suy giáp tăng prolactin máu (27,02%) cao hơn nhóm bình giáp (12,87%). Phụ nữ có AMH < 2 ng/ml ở nhóm cường giáp (48%) và nhóm suy giáp (54,04%) cao hơn ở nhóm bình giáp (36,37%).

Kết luận: Tỷ lệ RLCN tuyến giáp ở nhóm phụ nữ vô sinh trong nghiên cứu là 13,32%; cao hơn ở nhóm tuổi trên 35. Tỷ lệ phụ nữ vô sinh bị sảy thai, thai lưu, tăng prolactin máu hay AMH thấp < 2 ng/ml ở nhóm RLCN tuyến giáp cao hơn so với nhóm bình giáp.
10. THỰC TRẠNG TUÂN THỦ ĐIỀU TRỊ NGOẠI TRÚ CỦA NGƯỜI BỆNH GLOCOM TẠI BỆNH VIỆN MẮT HÀ NỘI, NĂM 2023
Authors: Dung Nguyễn Thị Thu , Thao Phạm Văn , Dũng Đào Văn
Published: January 2024

Mục tiêu nghiên cứu: Mô tả thực trạng tuân thủ điều trị ngoại trú của người bệnh glocom tại Bệnh viện Mắt Hà Nội, năm 2023.

Phương pháp nghiên cứu: Phỏng vấn trực tiếp 200 người bệnh glocom điều trị ngoại trú tại bệnh viện Mắt Hà Nội. Người bệnh tuân thủ điều trị là những người tuân thủ cả 4 nội dung theo quy định.

Kết quả nghiên cứu: Tỷ lệ tuân thủ điều trị ngoại trú của người bệnh glocom là: 31,0%. Trong đó tỷ lệ tuân thủ các nội dung, như sau: không bao giờ quên tra thuốc là 95,5%, thường xuyên tra thuốc đúng hướng dẫn là 40,0%, thường xuyên sử dụng thuốc đúng giờ theo chỉ định là 59,0% và thường xuyên đến tái khám đúng hẹn là 60,0%.

Kết luận: Tỷ lệ tuân thủ điều trị ngoại trú của người bệnh glocom là 31,0%, trong đó tỷ lệ tuân thủ từng nội dung từ 40,0% - 95,5%.
17. ĐẶC ĐIỂM VÀ HƯỚNG XỬ TRÍ THAI PHỤ ĐỦ THÁNG NHIỄM COVID-19 Ở MỨC ĐỘ NHẸ VÀ TRUNG BÌNH TẠI BỆNH VIỆN PHỤ SẢN TRUNG ƯƠNG
Authors: Anh Nguyễn Thế , Bắc Nguyễn Quảng , Tình Phan Thị , Anh Ngô Toàn
Published: January 2024

Năm 2022, thai phụ nhiễm COVID-19 vẫn đang là mối quan tâm đặc biệt với các bác sĩ tại Bệnh viện Phụ sản Trung ương.

Mục tiêu: Mô tả hướng xử trí với thai phụ mắc COVID-19 ở thể nhẹ và trung bình tại Bệnh viện Phụ sản Trung ương từ 1/2022 đến 12/2022.

Phương pháp nghiên cứu: Thiết kế nghiên cứu mô tả cắt ngang, hồi cứu trên hồ sơ bệnh nhân nhập viện được chẩn đoán mắc COVID-19 ở thể trung bình và nhẹ.

Kết quả: Tỷ lệ thai phụ mắc COVID-19 ở mức độ nhẹ là 58,2%, mức độ trung bình là 41,8%. Nhóm tuổi từ 25-29 có tỷ lệ mắc COVID-19 lớn nhất ở cả 2 nhóm nghiên cứu. Tuổi trung bình ở nhóm mắc COVID-19 nhẹ là 30,4±4,9 tuổi và ở nhóm COVID-19 trung bình là 30,8±5,4 tuổi. Tuổi thai nhập viện trung bình ở nhóm nhẹ là 39,0±0,9 tuần và nhóm trung bình là 39,0±1,0 tuần. Tỷ lệ mổ lấy thai ở nhóm COVID-19 nhẹ là 58,9% và ở nhóm COVID-19 trung bình là 41,1%.

Kết luận: Tỷ lệ mắc COVID-19 thể nhẹ và trung bình tại Bệnh viện Phụ sản trung ương là tương đương nhau. Với những thai phụ mắc COVID-19 ở thể nhẹ và trung bình thì hướng xử trí vẫn ưu tiên mổ lấy thai.
25. ĐẶC ĐIỂM LÂM SÀNG, CẬN LÂM SÀNG VÀ KẾT QUẢ ĐIỀU TRỊ HỘI CHỨNG THỰC BÀO TẾ BÀO MÁU Ở NGƯỜI LỚN TẠI VIỆN HUYẾT HỌC - TRUYỀN MÁU TRUNG ƯƠNG NĂM 2018-2023
Authors: Ánh Nguyễn Thị , Hòa Phan Quang , Thảo Nguyễn Thị , Khánh Bạch Quốc
Published: January 2024

Mục tiêu nghiên cứu: Mô tả đặc điểm lâm sàng, cận lâm sàng và đánh giá kết quả điều trị Hội chứng thực bào tế bào máu ở người lớn tại Viện Huyết học - Truyền máu Trung ương giai đoạn 2018-2023.

Phương pháp và đối tượng nghiên cứu: Nghiên cứu mô tả cắt ngang (Cross sectional study), 96 người bệnh được chẩn đoán Hội chứng thực bào tế bào máu tại Viện Huyết học – Truyền máu Trung ương năm 2018-2023. Người bệnh trên 15 tuổi, chẩn đoán và điều trị theo Tiêu chuẩn chẩn đoán Hội chứng thực bào HLH 2004.

Kết quả nghiên cứu: 96 người bệnh chẩn đoán Hội chứng thực bào tế bào máu từ 16 đến 83 tuổi, tuổi trung bình là 50 tuổi. Tỉ lệ mắc bệnh ở nam cao hơn nữ (nam/ nữ là 2/1). Các triệu chứng lâm sàng hay gặp gồm sốt 94,8%, lách to 59,4%, gan to 40,6%. Về đặc điểm cận lâm sàng tỉ lệ người bệnh có tăng triglyceride máu 65,6%, tất cả có tăng ferritin, tăng nồng độ CD25 chiếm 87,5%, tủy đồ có hình ảnh thực bào chiếm 95,8%. EBV là nguyên nhân thực bào hay gặp chiếm 28,1%. Tỉ lệ đáp ứng sau 2 tuần và 4 tuần là 7,3% và 21,9%, lui bệnh sau 8 tuần điều trị là 14,6%. Thời gian sống thêm toàn bộ trung bình là 5,2 tháng.

Kết luận: Nghiên cứu đánh giá kết quả điều trị bước đầu phác đồ HLH 2004 trên người bệnh cho thấy, tỉ lệ đạt lui bệnh sau 8 tuần điều trị thấp (14,6%), tỉ lệ tử vong cao (62,5%). Tỉ lệ tử vong tăng theo tuổi và tăng ở nhóm người bệnh có nồng độ triglyceride ≥ 3 mmol/L.
28. MỘT SỐ YẾU TỐ LIÊN QUAN ĐẾN KIẾN THỨC, THỰC HÀNH TIÊM INSULIN CỦA NGƯỜI BỆNH ĐÁI THÁO ĐƯỜNG TÝP 2 CAO TUỔI TẠI BỆNH VIỆN LÃO KHOA TRUNG ƯƠNG NĂM 2023
Authors: Anh Phan Tâm , Kiệt Phạm Huy Tuấn , Thảo Nguyễn Thị Hương , Thoa Đào Thị
Published: January 2024

Mục tiêu: Mô tả một số yếu tố liên quan tới kiến thức, thực hành của người cao tuổi mắc đái tháo đường týp 2 về việc tiêm Insulin tại Bệnh viện Lão khoa Trung ương năm 2023.

Đối tượng và phương pháp nghiên cứu: Nghiên cứu mô tả cắt ngang thực hiện trên 250 người bệnh là người cao tuổi (từ trên 60 tuổi) được chẩn đoán đái tháo đường týp 2 và điều trị tại Bệnh viện Lão khoa Trung ương. Mức độ kiến thức, thực hành tự tiêm Insulin được đánh giá dựa trên bộ công cụ tham khảo thang đo ITQ-2015.

Kết quả: Kiến thức ở mức đạt cao hơn ở các nhóm đối tượng sử dụng bơm tiêm/cả bơm tiêm và bút tiêm (OR=3,34; 95%CI: 1,45-7,73); tiêm Insulin trên 1 lần/ngày (OR=2,26; 95%CI: 1,09-4,70), được nhân viên y tế tư vấn lần cuối dưới 6 tháng (OR=3,50; 95%CI: 1,59-7,69). Tỷ lệ đạt về thực hành tiêm Insulin cao hơn ở nhóm người cao tuổi có trình độ học vấn trên trung học phổ thông (THPT) (OR=1,97; 95%CI: 1,11-3,51), có tiền sử biến chứng ĐTĐ (OR=2,11; 95%CI: 1,19-3,73); sử dụng bơm tiêm/cả hai (OR=2,63; 95%CI: 1,17-5,87); được cả điều dưỡng và bác sỹ hướng dẫn tiêm (OR=2,15; 95%CI: 1,22-3,80); và nhóm người bệnh có kiến thức ở mức đạt (OR=3,37; 95%CI: 1,74-6,52).

Kết luận: Kiến thức, thực hành tiêm Insulin của người cao tuổi ở Bệnh viện Lão Khoa Trung ương ở mức thấp. Các yếu tố liên quan đến kiến thức và thực hành của người cao tuổi bao gồm: Trình độ học vấn, biến chứng ĐTĐ, dụng cụ tiêm Insulin, đối tượng hướng dẫn tiêm insulin, kiến thức về tiêm insulin và tiền sử biến chứng ĐTĐ. Để nâng cao kiến thức, thực hành của người cao tuổi cần tập trung tư vấn, giáo dục kiến thức, thực hành tiêm Insulin cho người bệnh cao tuổi.