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Jamil MAS Obaid,1,2 Khawla AAS Sakran,2 Shaima AH Mohammed,1 Shifa`a LA Al-Salahi,1 Nawal AN Mahdi,1 Mohammed AM AL-Sharabi,1 Asadaddin SM AL-Gaadi,2 Mohammed NM AL-Fatahi2 1Department of Medical Laboratory Sciences, Faculty of Medicine and Health Sciences, Ibb University, Ibb, Yemen; 2Department of Medical Microbiology, Faculty of Science, Ibb University, Ibb, YemenCorrespondence: Jamil MAS Obaid, Ibb University, Assalaba, Ibb, Yemen, Email Jamilobaid@yahoo.com; Jamilobaid@ibbuniv.edu.yeObjective: Hemolysis is the most severe change that occurs in stored blood and can cause severe consequences in patients after transfusion. This study examines the potential role of IgG and complement, exampled by C4, in the hemolysis of stored CPDA-1 blood under poor storage conditions in low-income countries.Methods: The study was performed on 30 whole blood units (250 mL) drawn from convenience healthy volunteer donors with CPDA-1 anticoagulant and stored at 2– 6 °C for 35 days. Each well-mixed blood bag was sampled at 0, 7, 21 and 35 days and examined for CBC, plasma hemoglobin, hemolysis percent and determination of IgG and C4.Results: The plasma hemoglobin level and hemolysis percent increased continuously to reach 1.56 g/dl and 7.05% at the end of storage time. Hemolysis increased alongside the mean IgG concentration that was increased significantly from day 0 of storage (7.68± 1.75 g/L) and peaked on day 7 (11.55± 1.57 g/L), then declined to reach 8.33± 2.09 g/L on day 35. Also, the mean concentration of C4 increased from day 0 of storage (0.15± 0.06 g/L) to a peaked on day 21 (0.18± 0.04) then declined on day 35 (0.17± 0.06 g/L). The coordinated action of IgG and C4 is reflected by the positive correlation of their delta changes (r=0.616, p< 0.0001).Conclusion: Elevated hemolysis percent in whole CPDA-1 stored blood in Yemen was accompanied by initial increase of IgG and C4 followed by final decline, which indicate their activation and consumption during hemolysis. Further studies for other hemolysis markers and analyses will give a full idea about that.Keywords: IgG, complements, hemolysis, CPDA-1 blood, transfusion

Wudneh Simegn,1 Solomon Ahmed Mohammed,2 Getachew Moges2 1Department of Social and Administrative Pharmacy, School of Pharmacy, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia; 2Department of Pharmacy, College of Medicine and Health Sciences, Wollo University, Dessie, EthiopiaCorrespondence: Wudneh Simegn, Email wudusim@gmail.comBackground: Diabetes mellitus is one of the major public health problems that requires appropriate self-care practices to reduce complications. The current study assessed adherence to self-care practices and associated factors using the theory of planned behavior and the health belief model among type 2 diabetes mellitus patients.Methods: A facility-based, sequential explanatory mixed-method was undertaken at comprehensive specialized hospitals in the Amhara region of Ethiopia. A single population proportion formula was used to calculate sample size. Proportional allocation to the three study settings and systematic random sampling techniques were used to select 846 study participants. Logistic regression analysis was used to identify associated factors. Variables with a P-value less than 0.05 were declared statistically significant. For the qualitative study, purposive sampling was used to select sixteen key informants, and thematic analysis was performed.Results: About 42.4% of the study participants had good adherence to self-care practices. Being a member of a diabetes association (AOR = 2.57, 95% CI: 1.51, 4.38), having a home glucometer (AOR = 2.52, 95% CI: 1.59, 4.02), having good glycemic control (AOR = 4.07, 95% CI: 2.53, 6.53), having low perceived barriers (AOR = 8.65, 95% CI: 4.65, 16.07), and having middle perceived barriers (AOR = 3.26, 95% CI: 1.88, 5.66) were significantly associated with good adherence to self-care practice. On the other hand, poor wealth index (AOR = 0.27, 95% CI: 0.16, 0.46), poor behavioral control (AOR = 0.59, 95% CI: 0.36, 0.97), poor behavioral intention (AOR = 0.36, 95% CI: 0.21, 0.64), low perceived benefits (AOR = 0.20, 95% CI: 0.08, 0.51), and middle perceived benefits (AOR = 0.57, 95% CI: 0.31, 0.83) were significantly associated with poor adherence to self-care practice. The key informants explored the influence of patients’ beliefs, self-efficacy, social support, and barriers on their self-care practices.Conclusion: Less than half of type 2 diabetes mellitus patients had good adherence to self-care practices. This was more evident for patients who are members of a diabetes association, having a high wealth index, having a home glucometer, good behavioral control, good behavioral intentions, high perceived benefit, and poor perceived barriers. Appropriate intervention should be designed based on the aforementioned factors.Keywords: adherence, health belief model, self-care practice, theory of planned behavior, type 2 diabetes mellitus

Sadek Mostafa,1 Shaymaa A Mohammed,2 Salwa I Elshennawy,2 Doaa Mohammed Zakaria,1 Sammar Ahmed Kasim Mahmoud,1 Amira Mohammed Alsadek,3 Inass Hassan Ahmad,4 Doaa Sayed Mohammed,4 Marwa Abdelmonim Mohammed,1 Heba H Eltrawy3 1Internal Medicine Department, Al-Azhar University, Cairo, Egypt; 2Clinical Pathology Department, Al-Azhar University, Cairo, Egypt; 3Chest Diseases Department, Al-Azhar University, Cairo, Egypt; 4Endocrinology and Metabolism Department, Al-Azhar University, Cairo, EgyptCorrespondence: Heba H Eltrawy, Chest Diseases Department, Al-Azhar University, Cairo, Egypt, Tel +201006381297, Email hebahamed182@gmail.comBackground and Aim: Vitamin D is a hormone with essential roles in both cellular metabolism and immunity. It controls calcium homeostasis and modulates innate and adaptive immune system responses. Many studies suggested an association between vitamin D deficiency and clinical outcomes of covid-19 infection, while others failed to document such a relation. The present study aimed to evaluate the clinical and prognostic significance of baseline vitamin D levels in hospitalized Egyptian covid-19 patients.Patients and Methods: The present retrospective study included 300 hospitalized covid-19 patients. Patients were submitted to standard clinical, laboratory, and radiological assessment. According to vitamin D levels, patients were classified to have normal levels (≥ 30), insufficient levels (20– 29) or deficient levels (< 20).Results: According to their vitamin D levels, patients were classified into those with normal vitamin D (n=135), others with vitamin D insufficiency (n=114), and a third group with vitamin D deficiency (n=51). Patients with normal vitamin D levels and vitamin D insufficiency are significantly younger [median (IQR): 49.0 (39.0– 57.0) versus 51.0 (40.0– 61.0) and 55.0 (43.0– 62.0) years, respectively, p=0.012] and had less frequency of severe disease (24.4% versus 40.4% and 51.0%, respectively) when compared with those with vitamin D deficiency. Moreover, they had significantly lower levels of D dimer [median (IQR): 1.5 (0.9– 2.5) versus 1.8 (0.9– 3.1) and 2.0 (1.0– 3.2)], CRP [median (IQR): 58.0 (30.0– 120.0) versus 76.0 (42.5– 160.0) and 105.0 (74.0– 208.0), respectively, p< 0.001], ferritin [median (IQR): 458.0 (240.0– 759.0) versus 606.0 (433.8– 897.8) and 820.0 (552.0– 1087.0), respectively, p< 0.001], and procalcitonin [median (IQR): 290.0 (152.0– 394.0) versus 372.5 (227.0– 530.5) and 443.0 (272.0– 575.0), respectively, p< 0.001]. Only lower vitamin D levels were significant predictors of mortality in multivariate analysis [OR (95% CI): 0.88 (0.84– 0.92), p< 0.001].Conclusion: Low vitamin D levels are related to exaggerated inflammatory response, disease severity, and poor clinical outcome in hospitalized covid-19 patients.Keywords: covid-19, vitamin D, vitamin D deficiency

Reham Hammad,1 Asmaa A Elmadbouly,1 Inass Hassan Ahmad,2 Shaymaa A Mohammed,1 Nehal Farouk,3 Zahraa Futooh,4 Mohamed Omar Alfy,5 Sarah Abozaid,1 Eman F Mohamed,6 Fatma M Kotb,6 Alzahra Abdelbadea,7 Nora Seliem,7 Ahmed Elshafei,8 Alya Mashaal9 1Clinical Pathology Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt; 2Endocrinology Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt; 3Vascular Surgery Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt; 4General Surgery Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt; 5General Surgery Department, Al Zahraa University Hospital, Al-Azhar University, Cairo, Egypt; 6Internal Medicine Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt; 7Biochemistry Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt; 8Biochemistry and Molecular Biology Department, Faculty of Pharmacy for Boys, Al-Azhar University, Cairo, Egypt; 9Immunology, Zoology & Entomology Department, Faculty of Science for Girls, Al-Azhar University, Cairo, EgyptCorrespondence: Asmaa A Elmadbouly Tel +20 1011504476Email asmaaelmadbouly@azhar.edu.egBackground: The link between immune system and type 2 diabetes mellitus (T2DM) pathogenesis attracted attention to demonstrate the role of immune cells and their secreted cytokines in T2DM development and its subsequent foot complications.Objective: To investigate the relation between T Natural killer cell (TNK) %, Interleukin 4 (IL4) and Interferon gamma (IFN-γ) and diabetic foot infection (DFI) development in patients with diabetic foot ulcer (DFU).Patients and Methods: Ninety patients with diabetes were included in this work, divided as T2DM group (n=30), DFU group (n=30), and DFI group (n=30). TNK% was detected using flow cytometry. Serum IL4 and IFN-γ were measured by ELISA. Diabetes biochemical parameters were also analyzed.Results: Significant decrease was detected in TNK% and IFN-γ in DFI group compared to other 2 groups (P< 0.001). Significant decrease was detected in serum levels of IL4 in DFI group compared to T2DM group (P=0.006). IFN-γ/IL4 was significantly decreased in DFI compared to DFU group (P=0.020). There was a significant correlation of TNK% with both IL4 and IFN-γ (r=0.385, P< 0.001; r=0.534, P< 0.001, respectively). Significant negative correlation of TNK% with HbA1c and LDL was revealed (r=− 0.631, P< 0.001; and r=− 0.261, P=0.013, respectively), while a positive correlation was seen with HDL (r=0.287, P=0.006). A significant negative correlation of IL4 with HbA1c was found (r=− 0.514, P< 0.001;. As for IFN-γ, a significant negative correlation with HbA1c and LDL was detected (r=− 0.369, P< 0.001; r=− 0.229, P=0.030). TNK % and IFN-γ level showed negative correlations with disease duration/year (r=− 0.546, P< 0.001; r=− 0.338, P=0.001,respectively).Conclusion: Decline in TNK frequency has essential role in T2DM pathogenesis and subsequent foot complications. Downregulation of TNK% and IFN-γ level have potential roles in predicting infection of diabetic ulcer and are correlated with disease duration.Keywords: diabetic foot ulcer, diabetic foot infection, natural killer cell, interferon gamma, interleukin 4

Yohannes Shumet,1 Solomon Ahmed Mohammed,2 Mesfin Haile Kahissay,2 Birhanu Demeke2 1Department of Pharmacy, College of Medicine and Health Science, Debre Tabor University, Debre Tabor, Ethiopia; 2Department of Pharmacy, College of Medicine and Health Science, Wollo University, Dessie, EthiopiaCorrespondence: Solomon Ahmed Mohammed Tel +251-91-050-4378Email ahmedsolomon21@gmail.comBackground: Catastrophic health expenditure is health spending that is not covered by a health-care plan. These costs tend to escalate over time, due to chronic illnesses. Catastrophic health expenditure leads to decreased use of health services and poorer treatment outcomes. This study measured the extent of and factors associated with catastrophic health expenditure among chronically ill patients attending Dessie Referral Hospital in northeast Ethiopia.Methods: An institution-based cross-sectional study design was used to quantify catastrophic health expenditure among 302 chronically ill patients from May 25, 2018 to June 30, 2018. A stratified sampling technique was used to select the study participants. Descriptive and inferential statistics were computed using SPSS 20.Results: Catastrophic health expenditure was found in 194 (64.2%, 95% CI 58.8%– 70.5%) of chronic patients. Costly service (151, 50%), transport (104, 34.4%), and pharmaceuticals (189, 62.6%) were the reasons for catastrophic health expenditure among chronic patients. Factors associated with catastrophic health expenditure were age < 30 years (AOR 7.74, CI 0.94– 63.62; P=0.01), patient monthly income

Solomon Ahmed Mohammed,1 Gashaw Tsega,2 Abel Demerew Hailu3 1Department of Pharmacy, College of Medicine and Health Science, Wollo University, Dessie, Ethiopia; 2Department of Pharmacy, Finote Selam General Hospital, Finote Selam, Ethiopia; 3Department of Pharmacy, Dessie Health Science College, Dessie, EthiopiaCorrespondence: Solomon Ahmed Mohammed Tel +251910504378Email ahmedsolomon21@gmail.comIntroduction: Despite self-medication empowers patients in making decisions about the management of minor illnesses independently, the prevalence among health care professionals has sharply increased throughout the world. Self-medication has negative consequences on both the health care professionals themselves and health care delivery. Hence, this study assessed self-medication practices and associated factors among health care professionals at Debre Markos Comprehensive Specialized Hospital.Methods: A facility-based cross-sectional study was conducted using a structured questionnaire among health care professionals working at Debre Markos Comprehensive Specialized Hospital from October 10 to 25, 2020. A systematic random sampling technique was employed to select 227 study participants. Multivariate logistic regression was computed using the statistical package for social sciences version 20 and variables with a p-value less than 0.05 were taken as statistically significant. Results were presented in the form of tables and graphs.Results: Among 227 health professional, 164 (72.2%; 95% CI: 66.0%, 77.7%) practiced self-medication. Of these, 107 (65.2%; 95% CI: 57.3%, 71.8%) stated the negative consequence of self-medication. Drug resistance 96 (89.7%) and adverse drug reaction 95 (88.8%) were reported as a consequence. The predictor of self-medication among health professionals was the pharmacy profession (AOR: 11.88, 95% CI (1.38– 102.38)). The most common disease conditions for practicing self-medication were headache 153 (93.3%), respiratory tract infection 116 (70.7%) and gastrointestinal symptoms 103 (62.8%). Pain killers 154 (93.9%), antibiotics 122 (74.4%), and antacid 101 (61.6%) were frequently used for self-medication and health professionals got the medicines from drug retail shops 130 (79.3%) and workplace 104 (63.4%). Mild disease condition 128 (78%), time-saving 124 (75.6%), and accessibility 97 (59.1%) were the reasons for self-medication.Conclusion: More than two-thirds of health professionals practiced self-medication and reported the negative consequence of self-medication. The predictor of self-medication was the pharmacy profession. The provision of appropriate health education was recommended for promoting rational medication use.Keywords: self-medication, health professionals, Ethiopia

Abdu Tuha, Abebe Getie Faris, Solomon Ahmed Mohammed, Mengistie Yirsaw Gobezie Department of Pharmacy, College of Medicine and Health Science, Wollo University, Dessie, EthiopiaCorrespondence: Solomon Ahmed MohammedDepartment of Pharmacy, College of Medicine and Health Science, Wollo University, Dessie 1145, EthiopiaTel +251910504378Email solomon.ahmed@wu.edu.etIntroduction: Self-medication is an important part of daily self-care, without the supervision of health professionals. It is commonly practiced by pregnant women all over the world and may result in maternal and fetal risks. Hence, this study assessed self-medication practices and associated factors among pregnant women attending Kemisie General Hospital.Methods: A facility-based cross-sectional study was conducted using a structured questionnaire on pregnant women who were attending antenatal care at Kemisie General Hospital. A simple random sampling technique was employed to select the study participants. Descriptive and inferential statistics were computed using the Statistical Package for Social Sciences version 20.Results: Among 223 pregnant women, 60 (26.9%; 95% CI: 20.9%, 32.9%) and 111 (48.9%; 95% CI: 43%, 58%) practiced self-medication on conventional and herbal medicine, respectively. The predictors of self-medication of conventional medicine among pregnant women were prior experience to the drug (P-value: 0.00, AOR=126.04, 95% CI: 32.55– 488.04) and no pervious history of abortion (P-value: 0.00, AOR=0.01,95% CI:0.002– 0.04), while college educational level (P-value: 0.00, AOR=13.45,95%, CI: 3.58– 50.5), history prior herbal medicine use (P-value: 0.00, AOR=9, 95% CI: 3.32– 24.39), Ruta chalepensis (P-value:0.001,AOR=193.7,95% CI:8.64– 4342.1) and Ocimum lamiifolium type of herb use (P-value: 0.004, AOR=12.72, 95% CI: 2.27– 71.38), and 5– 10km health facility distance (P-value:0.022, AOR=0.1, 95% CI: 0.01– 0.73) were predictors for self-medication practice of herbal medicines among pregnant women.Conclusion: Nearly one-third and two-third of pregnant women practiced self-medication on conventional and herbal medicine, respectively. Prior experience to the drug and no previous history of abortion associated with self-medication of conventional medicine, while college educational level, history prior herbal medicine use, Ruta chalepensis and, Ocimum lamiifolium type of herb use, and 5– 10km distance were predictors for self-medication practice of herbal medicines. Improving health service coverage and awareness creation on rational medication use is recommended to prevent fetal and maternal risks.Keywords: self-medication, conventional medicine, herbal medicine, pregnant women

Solomon Ahmed Mohammed, Birhanu Demeke Workneh Department of Pharmacy, College of Medicine and Health Science, Wollo University, Dessie, EthiopiaCorrespondence: Solomon Ahmed Mohammed Tel +251910504378Email ahmedsolomon21@gmail.comIntroduction: Inventory management is a complex process that accelerates the probability of stock-out and overstocking if not tracked properly. Classification of drugs based on their criticality, cost burden, and in combination is important to make inventory decisions and optimize the quality use of scarce resources. This study analyzed the pharmaceutical inventory management systems of Dessie Referral Hospital using the ABC-VEN matrix for the years 2013 to 2017.Methodology: Cross-sectional study design was used to review logistic data retrospectively from health commodity management information system and manual records. Data were collected from January 1– 20, 2018 in Dessie Referral Hospital.Results: In the five-year ABC-VEN analysis, 310 (17%), 368 (20.18%), and 1146 (62.83%) items were class A, B, and C, while 610 (34.56%), 1125 (63.74%), and 30 (1.7%) of pharmaceuticals were V, E, and N, respectively. Among these, 139 (7.88%) and 339 (19.21%) of AV and CV pharmaceuticals utilized 43.52% and 2.89% of annual drug expenditures, respectively. Category I, II, and III pharmaceuticals also accounted for 43.68%, 54.79%, and 1.53% of items with their respective USD drug expenditure of 2,268,405.64 (84.49%), 411,961.18 (15.34%), and 4483.97 (0.17%). The pharmaceutical inventory cost projected to be 1,619,351.79 USD in 2025 and total cost (β= 10.68, p = 0.001), class A (β= 8.68, p = 0.001), class B (β= 1.27, p = 0.007), class C (β= 0.72, p = 0.03), and E items (β= 6.08, p = 0.01) were statistically significant with inventory cost.Conclusion: A huge amount of budget is invested in class A and category I, which pinpoints the need for strict inventory control to prevent wastage and accumulation of capital in buffer stocks. ABC-VEN analysis should be routinely performed before initiation of any new procurement for efficient use of scarce resources.Keywords: inventory management, ABC analysis, VEN analysis, ABC-VEN matrix

Mulate Belete Demessie,1 Birhanu Demeke Workneh,1 Solomon Ahmed Mohammed,1 Abel Demerew Hailu2 1Department of Pharmacy, College of Medicine and Health Science, Wollo University, Dessie, Ethiopia; 2Department of Pharmacy, Dessie Health Science College, Dessie, EthiopiaCorrespondence: Solomon Ahmed MohammedDepartment of Pharmacy, College of Medicine and Health Science, Wollo University, P.O. Box: 1145, Dessie, EthiopiaTel +251 91 050 4378Email ahmedsolomon21@gmail.comBackground: Tracer drugs are the representative of essential medicines and satisfy the priority healthcare needs of the population. Managing tracer drugs through logistics management information systems is a strategy to enhance their smooth flow for continuous provision of quality health service. This study assessed the availability of tracer drugs and implementation of their logistic management information system in public health facilities of Dessie, North-East Ethiopia.Methods: Cross-sectional study was conducted from September 15– 30, 2017, in all public health facilities of Dessie. The data were collected by reviewing tracer drugs logistic formats and conducting physical inventory. Key informant interview was employed to all pharmacy heads and store managers. Data analysis was done using statistical package for social science version 20 and Microsoft Excel 2010.Results: Twelve tracer drugs were managed by health facilities. The overall mean availability, mean duration, and average frequency of stock out of tracer drugs (last 6 months) were 74.7%, 48.8 days, and 1.43, respectively. In eight health facilities, logistic records were available, but all health facilities did not use stock cards. Also, 3 out of 9 used the health commodity management information system. On average, 77.8% of the tracer drugs had bin cards, of which, 86% were updated. The discrepancy between physical count and stock keeping records was ranged from 0% to 100%. The causes of stock out were inadequate supply, lack of recording forms, and their inconsistent use.Conclusion and Recommendations: The availability of tracer drugs was less than the recommended percent, and inadequate supply, poor availability and use of recording forms were the reasons for stock out. Thus, health facility managers and pharmacy heads should work in harmony to ensure uninterrupted supply and implement a logistic management information system.Keywords: logistic management information system, overstock, public health facility, stockouts, tracer drugs

Yohannes Shumet Yimer,1 Solomon Ahmed Mohammed,2 Abel Demerew Hailu3 1Department of Pharmacy, College of Medicine and Health Science, Debre Tabor University, Debre Tabor, Ethiopia; 2Department of Pharmacy, College of Medicine and Health Science, Wollo University, Dessie, Ethiopia; 3Department of Pharmacy, Dessie Health Science Collage, Dessie, EthiopiaCorrespondence: Solomon Ahmed Mohammed Tel +251910504378Email solomon.ahmed@wu.edu.etAbstract: Despite the fact that pharmaceutical care has been expanding simultaneously with the increasing role of pharmacists and the number of prescriptions dispensed, the extended role of community pharmacists is largely confined to the dispensing of medications. This advancement in pharmacy services demands competent pharmacists and patient-centered communication. The objective of this review was to explore the barriers to patient–pharmacy interaction. Relevant kinds of literature were searched from Google Scholar, PubMed, Hinari, We of Science, Scopus, and Science Direct. A total of 3025 kinds of literature were searched. After excluding redundant and irrelevant literature, 13 kinds of literature were reviewed. Lack of adequate knowledge of drugs, lack of updated drug information, work experience, poor job satisfaction, lack of good communication skills, shortage of time, and clearness of pharmacist’s voice and tone were barriers to communication from the side of pharmacy professionals. Factors like not wanting to talk much, bad attitude toward the pharmacy, being in a rush to leave, lack of willingness, language and educational status of the patient were patients’ communication obstacles while high patient load, the suitability of dispensing area, and waiting time for service were associated challenges for patient-centered communication faced by health facilities. Barriers to patient–pharmacist interactions were related to patients, pharmacy professionals, and health institutions. These factors are not independent and the presence of one factor may trigger others and further compromise the patient–pharmacist interaction and result in poor medication outcomes.Keywords: patient, pharmacist, communication and Ethiopia

Abstract This study investigates stress-deformation behavior in Himalayan tunnels, focusing on how geological features impact stability. The objective is to enhance the understanding of displacement phenomena, particularly in tunnels traversing jointed rocks. A modified support system, to specific rock mass classifications, is employed to address the unique challenges posed by geological discontinuities. Kinematic analysis reveals a 20% probability of wedge failure due to these discontinuities. Numerical analysis using Hoek–Brown parameters identifies significant stress concentrations at the tunnel crown, especially in jointed sections, where increased convergence and displacement (1.2 mm at the crown compared to 0.25 mm at the walls) highlight the susceptibility to deformation. The study indicates the critical need for specialized support in jointed regions to mitigate stability risks.

Concrete is a constantly evolving building material whose demand is increasing due to population growth and urban development. This calls for more research on this composite material to improve its performance. However, concrete has some disadvantages, including that it is a brittle material and cannot withstand tensile stress. Therefore, rebars and fibers are incorporated into concrete to improve this property. Although previous works investigated the properties of concrete containing steel fibers, most of them were concerned with mechanical properties, while the durability properties still require further investigation to understand them. Thus, the purpose of this study is to ascertain how adding steel fibers to concrete in varying proportions (0.5, 1 and 1.5%) affects its mechanical and durability properties, including compressive strength, flexural strength, tensile strength, bulk density, water absorption, mode of failure, ultrasonic pulse velocity, dynamic modulus of elasticity and electrical resistance. Statistical relationships between the compressive strength and other characteristics were also established. The results indicated that all mechanical and durability characteristics significantly improved after adding steel fibers for all addition ratios, except for electrical resistivity, which showed lower values than the reference mixture for the 0.5 and 1% steel fiber proportions. Moreover, it was found that the best addition rate of steel fibers was 1.5%. At this percentage, the recorded increasing rates over the control sample were 29.3% in compressive strength, 83.7% in tensile strength, 27.9% in flexural strength, 50.1 in water absorption resistance, and 11.2% in electrical resistivity.

Background: The increasing need for nutrients during adolescence due to growth and menstruation experienced by young women causes young women to be susceptible to anaemia. Anaemia is a condition where the haemoglobin level in the blood is less than the normal value. One of the factors causing anaemia is the lack of knowledge among teenagers about anaemia. Many types of media, both visual and audiovisual, can be used to convey education about anaemia. Purpose: To determine the effectiveness of nutrition education media in increasing teenagers' knowledge of preventing anaemia. Methods: This research uses a literature review design. A literature review study is a method used to collect data or sources related to a particular topic, which can be obtained from various sources such as research articles. Results: From the reviewed articles, five showed an increase in teenagers' average knowledge score after being educated using visual media. There is 1 article that shows an increase in teenagers' average knowledge score after being educated using audiovisual media. Three articles showed an increase in teenagers' average knowledge score after being educated using visual and audiovisual media. Conclusion: Visual and audiovisual media are effective when used together to help increase teenagers' nutrition knowledge and provide nutritional education about anaemia. When delivering nutritional education about anaemia to teenagers, using visual and audiovisual media simultaneously is recommended to get effective results.

Abstract Alzheimer’s disease (AD) is a complex neurodegenerative disorder significantly impairing cognitive faculties, memory, and physical abilities. To characterize the modulation of the gut microbiota in an in vivo AD model, we performed shotgun metagenomics sequencing on 3xTgAD mice at key time points (i.e., 2, 6, and 12 months) of AD progression. Fecal samples from both 3xTgAD and wild-type mice were collected, DNA extracted, and sequenced. Quantitative taxon abundance assessment using MetaPhlAn 4 ensured precise microbial community representation. The analysis focused on species-level genome bins (SGBs) including both known and unknown SGBs (kSGBs and uSGBs, respectively) and also comprised higher taxonomic categories such as family-level genome bins (FGBs), class-level genome bins (CGBs), and order-level genome bins (OGBs). Our bioinformatic results pinpointed the presence of extensive gut microbial diversity in AD mice and showed that the largest proportion of AD- and aging-associated microbiome changes in 3xTgAD mice concern SGBs that belong to the Bacteroidota and Firmicutes phyla, along with a large set of uncharacterized SGBs. Our findings emphasize the need for further advanced bioinformatic studies for accurate classification and functional analysis of these elusive microbial species in relation to their potential bridging role in the gut-brain axis and AD pathogenesis.

Abstract Breast cancer is considered a multifactorial disease, with genetic factors playing an important role in diagnosis and treatment. FCGR3A encodes the receptor for the Fc portion of immunoglobulin G that has been linked to the trastuzumab response. Our study aimed to investigate the association of FCGR3A-V158F gene polymorphism with breast cancer and to evaluate the impact of FCGR3A-V158F gene polymorphism on trastuzumab response in HER2-positive breast cancer patients. The study was conducted on eighty breast cancer patients who were collected from the Department of Oncology at Ain Shams University Hospitals; in addition, twenty age-matched healthy subjects were taken as a healthy control group. Patients were further sub-classified according to their responses. The study showed that there were no statistically significant differences between patients and controls regarding FCGR3A-V158F gene polymorphism genotypes. However, there was a significant association between the concordance of this polymorphism and the response to trastuzumab therapy among the patient’s group. V/V is associated with better treatment response and overall survival (OS) compared to F/V and F/F alleles. Assessment of FCGR3A-V158F gene polymorphism might be useful in making a treatment decision in HER2-positive breast cancer patients.

Abstract Background This study aimed to evaluate the knowledge, awareness, and practice of intraoral scanners (IOS) and the factors affecting their accuracy amongst dental interns and practitioners. Methods This was an observational cross-sectional study in which data was collected from a representative population in Saudi Arabia, with the help of online questionnaires. The forms were distributed to 500 dental interns and practitioners and the questionnaire’s validity and reliability were evaluated for vetting and remarks. The questionnaire consisted of three parts: the participants’ demographic details, questions on the awareness and knowledge of participants regarding IOS, and the factors affecting the accuracy in clinical use of IOS. Questions were to be answered with ‘yes’, ‘no’ and ‘I don’t know’. Descriptive statistical analysis was performed using the control chart technique and the chi-squared test, with statistical significance set at p

Abstract Transalveolar sinus elevation is a minimally invasive technique aimed at augmenting the vertical bone height in the posterior maxilla, facilitating successful implant placement in areas with insufficient bone volume. This study compares the efficacy of osseodensification and piezoelectric internal sinus elevation (PISE) techniques in delayed implant placement. The primary objective was to radiographically assess vertical bone gain and bone density, while secondary objectives included clinical assessment of primary implant stability and post-operative satisfaction of both patients and operators. The study population of a total of 16 patients was randomly divided into two groups. Group 1 underwent osseodensification sinus lift using sticky bone as a graft material, whereas Group 2 received PISE with the same graft material. Results indicated that the osseodensification technique led to greater bone gain, improved bone density, and shorter surgical duration. Additionally, osseodensification was associated with enhanced rapid healing and higher patient satisfaction. Conversely, the PISE technique demonstrated superior primary stability of implants on the day of surgery. These findings suggest that while both techniques are effective, osseodensification may offer advantages in terms of bone gain, density, and patient satisfaction, making it a reliable method for enhancing rapid healing in delayed implant placement. the study was registered on clinicaltrials.gov at 26th September 2023 and clinical trials ID is NCT06055127.

Abstract Bone scintigraphy is recognized as an efficient diagnostic method for whole-body screening for bone metastases. At the moment, whole-body bone scan image analysis is primarily dependent on manual reading by nuclear medicine doctors. However, manual analysis needs substantial experience and is both stressful and time-consuming. To address the aforementioned issues, this work proposed a machine-learning technique that uses phases to detect Bone scintigraphy. The first phase in the proposed model is the feature extraction and it was conducted based on integrating the Mobile Vision Transformer (MobileViT) model in our framework to capture highly complex representations from raw medical imagery using two primary components including ViT and lightweight CNN featuring a limited number of parameters. In addition, the second phase is named feature selection, and it is dependent on the Arithmetic Optimization Algorithm (AOA) being used to improve the Growth Optimizer (GO). We evaluate the performance of the proposed FS model, named GOAOA using a set of 18 UCI datasets. Additionally, the applicability of Bone scintigraphy for real-world application is evaluated using 2800 bone scan images (1400 normal and 1400 abnormal). The results and statistical analysis revealed that the proposed GOAOA algorithm as an FS technique outperforms the other FS algorithms employed in this study.

Abstract This study investigates noise reduction using a periodic arrangement of dual Helmholtz resonators and explores the introduction of defects within this periodic structure. The transfer matrix method was employed to carry out theoretical research. The computations of the interface response function approach results are verified, and consistent outcomes are demonstrated. The simulation results highlight the distinctive dual resonance frequencies of dual Helmholtz resonators. By differentiating dual Helmholtz resonators from traditional Helmholtz resonators, prospective applications for low-frequency noise reduction are envisioned. In this contribution, introducing defects in the middle of perfect dual Helmholtz resonators adds more value to the acoustic filter. In particular, the first neck and cavity of the defective dual Helmholtz resonator. This study shows that introducing a 2D-defect into identical dual Helmholtz resonators can improve the transmission of defect modes by taking advantage of the advantageous interaction of the resonant modes. In such arrangements, the entire structure functioned as a potent selective filter.

In the present work, we have established some new fractional integral inequalities for functions whose $ k $th-derivatives are generalized modified $ h $-convex and symmetric about the midpoint involving the Caputo fractional derivatives. Many particular cases are obtained by using the findings.

Abstract Emergency computed tomography (CT) often does not allow for comprehensive coronary artery assessment. However, CT may reveal pathological myocardial hypoperfusion suggestive of acute myocardial infarction (AMI), especially in patients presenting with a different diagnostic hypothesis. CT hypoperfusion is known to be associated with myocardial infarction, however the diagnostic value of CT hypoperfusion for the detection of AMI is still not well evaluated. This was a single-centre retrospective study including patients who underwent invasive coronary angiography (ICA) due to suspected AMI based on incidental perfusion defects upon emergency CT imaging between 2018 and 2023. A total of 22 patients (mean age 66.3 ± 10.8 years, 11 female) were included in this analysis. The diagnosis of AMI was established in all cases leading to ICA. Culprit coronary artery lesions with an indication of percutaneous coronary intervention were detected in all patients who underwent ICA. Spearmann correlation for hypoperfused segments on CT imaging and the corresponding vascular territory upon ICA was significantly substantial (ρ = 0.73, p =

Adsorption techniques are frequently used to eliminate particular forms of pesticides. This work aims to describe the process of adsorbing abamectin (ABM) from aqueous systems onto adsorbents and some factors affecting the process' effectiveness. Water hyacinth (WH) was chemically processed utilizing calcium alginate-immobilized WH and sodium alginate as adsorbent. The Response Surface Method (RSM) was implemented to enhance operational aspects of the adsorption procedure on the removal of (ABM) residues from aqueous solution. The results show that 95.65% of the abamectin was removed under the optimum conditions of pH=3, 1000 mg/L of immobilized WH, particle size=5 µm, shaking speed =200 rpm, and 30 mg/L of ABM concentration throughout 180 min contact time. The model's predicted response results also show a decent agreement with the experimental data (R2 = 86.64%), proving the effectiveness of this approach for developing precise predictions. The responses were assessed using a second-order polynomial multiple regression model, which confirmed a successful adjustment with the obtained data using analysis of variance (R2 = 92.0%, R2adj = 88.92%, and R2pred = 82.92%). In conclusion, the results demonstrated the potential application and beneficial adsorption effectiveness of WH in removal of the pesticides from an aqueous solution.

Hodgkin’s lymphoma (HL) and autism spectrum disorder (ASD) are a rare combination. Diagnosing and treating patients with this combination is challenging. Here, we report the case of a 19-year-old male with ASD and HL. Upon initial presentation to our clinic, the patient was very active with the clinical features of autism. Pathology confirmed stage IVBs HL of the mixed cellularity subtype. He received six cycles of Adriamycin, bleomycin sulfate, vinblastine sulfate, and dacarbazine and has been in remission for the last 4 years. This report presents the challenges in the diagnosis and treatment of a young patient with ASD and cancer and how to overcome them.

Abstract This paper focuses on the reactive extraction of levulinic acid (LA) from aqueous solution by reactive extraction. This goal is achieved using eugenol, a green alternative in the industry, as a solvent in the liquid-liquid equilibrium (LLE) measurements for the ternary system of LA + Eugenol + H2O and quaternary systems of LA + Eugenol/ Methanol (MeOH) + H2O + Tri-n-octylamine (TOA) at T = 293.15 K. Additionally, the distribution coefficients (K D) were calculated for LA using the two diluents. Also, the ability of different diluents with TOA, in the extraction of LA were compared. The distribution coefficient of eugenol with TOA (K D = 9.44) is compared with other organic diluents which indicated that eugenol is a suitable option. MeOH, being the shortest chain alcohol, also turned out to be a diluent that could be utilized for extraction of LA with TOA. Furthermore, the Non-Random Two-Liquid (NRTL) excess Gibbs energy model was applied to correlate the measured phase equilibria. The obtained parameters were further validated using a decanter model.

Abstract This study investigates the relationship between students' self-efficacy beliefs, goal-setting, and learning tactics in an online business course. Using sequence analysis and process mining techniques, we analyzed log data from 209 students to identify distinct learning tactics and their association with self-efficacy beliefs, inferred from initial goal-setting and final grades. Four learning tactics were identified, with significant differences observed between students with high and low self-efficacy beliefs. High self-efficacy students demonstrated more varied and adaptive tactics, including greater use of quizzes and project-focused activities. In contrast, low self-efficacy students and those who didn't set goals showed less engagement and fewer monitoring activities. The project-focused tactic had the strongest correlation with final grades and goal achievement. Goal-setting at the course's start was linked to more effective learning behaviors and better outcomes. The study reveals how students' online learning behavior changes based on initial goal-setting and subsequent reflection. These findings contribute to research on self-regulated learning in online environments and offer practical implications for designing online courses and learning analytics interventions. Understanding these differences enables the development of targeted interventions to improve learning tactics and self-efficacy beliefs among students, ultimately enhancing their ability to achieve learning goals in online educational settings.

Infectious diseases are a major global public health concern. Precise modeling and prediction methods are essential to develop effective strategies for disease control. However, data imbalance and the presence of noise and intensity inhomogeneity make disease detection more challenging. Goal: In this article, a novel infectious disease pattern prediction system is proposed by integrating deterministic and stochastic model benefits with the benefits of the deep learning model. Results: The combined benefits yield improvement in the performance of solution prediction. Moreover, the objective is also to investigate the influence of time delay on infection rates and rates associated with vaccination. Conclusions: In this proposed framework, at first, the global stability at disease free equilibrium is effectively analysed using Routh-Haurwitz criteria and Lyapunov method, and the endemic equilibrium is analysed using non-linear Volterra integral equations in the infectious disease model. Unlike the existing model, emphasis is given to suggesting a model that is capable of investigating stability while considering the effect of vaccination and migration rate. Next, the influence of vaccination on the rate of infection is effectively predicted using an efficient deep learning model by employing the long-term dependencies in sequential data. Thus making the prediction more accurate.

Purpose The present study aimed to determine the serum level of asprosin, a novel glucogenic and orexigenic hormone, in NAFLD and hypothyroidism patients.Methods This is a case–control study that included three groups of age and sex-matched subjects: hypothyroid patients with NAFLD (n = 26), hypothyroid patients without NAFLD (n = 25) and normal control subjects (n = 27). A detailed clinical history was obtained, and an examination was performed. Laboratory tests included fasting plasma glucose and insulin, lipid profile, TSH, free T4, AST, ALT, albumin, and asprosin. The homeostatic model assessment of insulin resistance (HOMA-IR) score was calculated. Abdominal ultrasonography was performed to calculate the hepatorenal index and define participants with NAFLD. The data were statistically analyzed.Results There was a statistically significant difference between the three groups regarding serum asprosin concentration (p

Abstract Background Although endometrial cancer (EC) is staged surgically, magnetic resonance imaging (MRI) plays a critical role in assessing and selecting the most appropriate treatment planning. We aimed to assess the diagnostic performance of quantitative analysis of diffusion-weighted imaging (DWI) in preoperative assessment of EC. Methods Prospective analysis was done for sixty-eight patients with pathology-proven endometrial cancer who underwent MRI and DWI. Apparent diffusion coefficient (ADC) values were measured by two independent radiologists and compared with the postoperative pathological results. Results There was excellent inter-observer reliability in measuring ADCmean values. There were statistically significant lower ADCmean values in patients with deep myometrial invasion (MI), cervical stromal invasion (CSI), type II EC, and lympho-vascular space involvement (LVSI) (AUC = 0.717, 0.816, 0.999, and 0.735 respectively) with optimal cut-off values of ≤ 0.84, ≤ 0.84, ≤ 0.78 and ≤ 0.82 mm2/s respectively. Also, there was a statistically significant negative correlation between ADC values and the updated 2023 FIGO stage and tumor grade (strong association), and the 2009 FIGO stage (medium association). Conclusions The preoperative ADCmean values of EC were significantly correlated with main prognostic factors including depth of MI, CSI, EC type, grade, nodal involvement, and LVSI.

Abstract Background Metabolic-associated fatty liver disease (MAFLD) has emerged as the predominant form of chronic liver disease globally linked with heightened cardiovascular disease (CVD) risk, the leading cause of mortality among affected individuals. Aim This study aims to assess serum PTX3 (pentraxin 3) and platelet-derived growth factor receptor beta (PDGFRβ) as potential non-invasive biomarkers for predicting cardiovascular risk (CVR) in MAFLD patients. Method A case–control investigation encompassing 84 MAFLD patients without prior CVD history and 30 age- and gender-matched healthy controls was conducted. Both cohorts underwent comprehensive laboratory and radiological evaluations. CVR was evaluated through common carotid artery intima-media thickness (IMT), Framingham risk score, and QRISK 2 score. The efficacy of two ELISA biomarkers PTX3 and PDGFRβ was examined for correlation with CVR in MAFLD patients. Results MAFLD patients displayed significantly heightened levels of PTX3 and PDGFβ compared to healthy controls (P

Abstract Background A relatively common complication of COVID -19 infection is arrhythmia. There is limited information about myocardial deformation and heart rate variability (HRV) in symptomatic post COVID patients presented by ventricular arrhythmia. Aim of the study Our goal was to assess 2D-ventricular strain and heart rate variability indices (evaluated by ambulatory ECG monitoring) in post-COVID-19 patients suffering from ventricular arrhythmia. Methods The current observational case–control study performed on 60 patients one month after they had recovered from the COVID-19 infection. Thirty healthy volunteers served as the control group. Each participant had a full medical history review, blood tests, a 12-lead surface electrocardiogram (ECG), 24-h ambulatory ECG monitoring, and an echo-Doppler examination to evaluate the left ventricular (LV) dimensions, tissue Doppler velocities, and 2D-speckle tracking echocardiography (2D-STE) for both the LV and right ventricular (RV) strain. Results Symptomatic post-COVID patients with monomorphic premature ventricular contractions (PVCs) showed a substantial impairment of LV/RV systolic and diastolic functions, LV/RV myocardial performance (MPI) with reduced indices of HRV. Patients with higher versus lower ventricular burden had poorer functional status, higher levels of inflammatory biomarkers and reduced parameters of HRV (New York Heart Association (NYHA) class: 2.1 ± 0.9 vs. 1.5 ± 0.6, p

In recent years, as technology has advanced and more and more activities have become digitized, cybersecurity has become a top priority for governments around the world. Cybersecurity is essential for protecting computer systems, networks and data from cyberattacks that can have a negative impact on individuals, businesses and governments. Indeed, biometrics is a key means of cybersecurity that can help prevent unauthorized access, identity theft and unauthorized changes to data. This paper presents an innovative contactless palmprint recognition system, integrating two types of features to enhance accuracy and efficiency. Our approach employs two distinct feature sets: handcrafted features, based on the Pyramid Histogram of Oriented Gradients (PHOG) and Local Phase Quantization (LPQ) techniques and deep features extracted through deep learning-based image analysis methods such as DCTNet, DSTNet, PCANet and ICANet. Furthermore, we used a sophisticated Deep Rule-based (DRB) classifier for classification tasks. Experimental results obtained using a typical database demonstrated excellent identification rates, surpassing significantly those reported in similar studies.

Abstract Within the evolving landscape of fifth‐generation (5G) wireless networks, the introduction of network‐slicing protocols has become pivotal, enabling the accommodation of diverse application needs while fortifying defences against potential security breaches. This study endeavours to construct a comprehensive network‐slicing model integrated with an attack detection system within the 5G framework. Leveraging software‐defined networking (SDN) along with deep learning techniques, this approach seeks to fortify security measures while optimizing network performance. This undertaking introduces network slicing predicated on SDN with the OpenFlow protocol and Ryu control technology, complemented by a neural network model for attack detection using deep learning methodologies. Additionally, the proposed convolutional neural networks‐long short‐term memory approach demonstrates superiority over conventional ML algorithms, signifying its potential for real‐time attack detection. Evaluation of the proposed system using a 5G dataset showcases an impressive accuracy of 99%, surpassing previous studies, and affirming the efficacy of the approach. Moreover, network slicing significantly enhances quality of service by segmenting services based on bandwidth. Future research will concentrate on real‐world implementation, encompassing diverse dataset evaluations, and assessing the model's adaptability across varied scenarios.

Carbonate reservoirs are significant hydrocarbon productions, but their complex and heterogeneous nature often poses challenges in maximizing oil and gas recovery. Traditional methods for enhancing petrophysical properties have shown limited success in carbonate formations. However, new advancements in Plasma Channel Technology have shown promising results in improving the reservoir's petrophysical properties. The application of Plasma Channel Technology is considered as a novel approach to enhance the petrophysical properties of carbonate reservoirs. Plasma channel technology involves the controlled application of high-voltage electrical discharges to create conductive channels (new porosity) within the reservoir units. These channels serve as preferential pathways for fluid flow (permeability) and facilitate enhanced oil and gas recovery. The main objective of this study is to show the key aspects of the enhancement of the Yamama reservoir properties using Plasma Channel Technology minimizes the need for chemical additives to reduce operational costs and environmental impact. Therefore, Yamama Formation is studied in two oil wells Snd-1 and Snd-2, six core samples from reservoir units within the Yamama succession were studied to determine porosity using a Scanning Electron Microscope which provides valuable insights into their internal structure and porosity characteristics in these samples. A comparison had been done between porosities within rock samples before and after application of Plasma channel technology, where the porosity was ranging from micropores (10 nm) to mesopores (10-50 nm) in some samples before voltage electrical discharges, while it reached mesopores (20-50 nm) to macropores (more than 500 nm) after voltage electrical discharges.These pores have been increased in size if there was higher voltage which means enhancement in the petrophysical properties in the reservoir.

Abstract Background Female breast cancer stands as the prime type of cancer in the Kingdom of Saudi Arabia (KSA), with a high incidence and mortality rates. This study assessed the burden of female breast cancer in KSA by analyzing and forecasting its incidence, mortality, and disability-adjusted life years (DALYs). Methods We retrieved data from the Global Burden of Disease (GBD) about female breast cancer from 1990 to 2021. Time-series analysis used the autoregressive integrated moving average (ARIMA) model to forecast female breast cancer statistics from 2022 to 2026. Results From 1990 to 2021, KSA reported 77,513 cases of female breast cancer. The age groups with the highest number of cases are 45–49 years, followed by 40–44 years, 50–54 years, and 35–39 years. The analysis also showed fewer cases in the younger age groups, with the lowest number in the less than 20-year-old age group. From 1990 to 2021, KSA reported 19,440 deaths due to breast cancer, increasing from 201 cases in 1990 to 1,190 cases in 2021. The age-standardized incidence rate/100,000 of breast cancer increased from 15.4 (95% confidence interval (CI) 11.2–21.0) in 1990 to 46.0 (95%CI 34.5–61.5) in 2021. The forecasted incidence rate of female breast cancer will be 46.5 (95%CI 45.8–46.5) in 2022 and 49.6 (95%CI 46.8–52.3) in 2026. The age-standardized death rate per 100,000 Saudi women with breast cancer increased from 6.73 (95%CI 6.73–9.03) in 1990 to 9.77 (95%CI 7.63–13.00) in 2021. The forecasted female breast cancer death rate will slightly decrease to 9.67 (95%CI 9.49–9.84) in 2022 and to 9.26 (95%CI 8.37–10.15) in 2026. DALYs increased from 229.2 (95%CI 165.7–313.6) in 1990 to 346.1 (95%CI 253.9–467.2) in 2021. The forecasted DALYs of female breast cancer will slightly decrease to 343.3 (95%CI 337.2–349.5) in 2022 reaching 332.1 (95%CI 301.2–363.1) in 2026. Conclusions Female breast cancer is still a significant public health burden that challenges the health system in KSA, current policies and interventions should be fashioned to alleviate the disease morbidity and mortality and mitigate its future burden.

Background : : Endoscopic ultrasound (EUS) tissue acquisition requires rapid on-site evaluation to improve diagnostic yield with less needle passes; however, this is not readily available in all centers, also it increases the duration and the cost of the procedure. Macroscopic on-site evaluation (MOSE) is the direct assessment of the tissue sample provided by EUS-guided fine needle biopsy (EUS-FNB) macroscopically, to detect whether it is sufficient or not. Aim of this study was to define the role of MOSE in judging the adequacy of the tissue core specimens and to evaluate its diagnostic yield and accuracy.Methods : : This prospective study was conducted at our institution with 215 participants of both genders presenting for evaluation of solid or mixed solid and cystic lesions by MOSE technique by EUS-fine needle aspiration (FNA) or FNB.Results : : In obtaining conclusive sample MOSE score 1 sensitivity was 68.2%, specificity was 75%, positive predictive value (PPV) was 99.3, negative predictive value (NPV) was 4.3 and overall accuracy was 68.4, in MOSE score 2 sensitivity was 88%, specificity was 75%, PPV was 99.5, NPV was 10 and overall accuracy was 87, in MOSE 2 (FNB) sensitivity was 92%, Specificity was 67%, PPV was 99.4, NPV was 12, 5 and overall accuracy was 92. There was no statistically significant difference between the two groups with conclusive and inconclusive cytopathological results regarding size of the needle, number of needle passes, type of the needle and the specimen acquisition method.Conclusion : : Using MOSE for assessment of adequacy of the sample obtained by EUS-FNB showed higher diagnostic yield compared to conventional method using different needle sizes.

In recent years, image watermarking has become the most active research in the information hiding field. This paper presents an application of a computational intelligence technique to obtain robust and secure image-watermarking schemes for data image transmission. The optimization goal is achieved via a new robust method based on the hybridization (in the digital domain) of the image-watermarking scheme using Discrete Wavelet Transform (DWT) and Singular Value Decomposition (SVD). The Forensic-Based Investigation (FBI) optimization algorithm is considered to search for the best scaling factor and the appropriate location for the watermark insertion. The Arnold Transform (AT) encryption is also introduced to enhance the watermark image process security. To show the efficiency of the proposed schemes, several watermarked images are subjected to several attacks, and their imperceptibility and robustness are checked via structural similarity index measure (SSIM) and Normalized Correlation Coefficient (NCC) where the proposed schemes provide competitive simulation results. Statistical analysis is also carried out to prove the performance of the used optimization algorithm.

Abstract Background Biofortification represents a promising and sustainable strategy for mitigating global nutrient deficiencies. However, its successful implementation poses significant challenges. Among staple crops, wheat emerges as a prime candidate to address these nutritional gaps. Wheat biofortification offers a robust approach to enhance wheat cultivars by elevating the micronutrient levels in grains, addressing one of the most crucial global concerns in the present era. Main text Biofortification is a promising, but complex avenue, with numerous limitations and challenges to face. Notably, micronutrients such as iron (Fe), zinc (Zn), selenium (Se), and copper (Cu) can significantly impact human health. Improving Fe, Zn, Se, and Cu contents in wheat could be therefore relevant to combat malnutrition. In this review, particular emphasis has been placed on understanding the extent of genetic variability of micronutrients in diverse Triticum species, along with their associated mechanisms of uptake, translocation, accumulation and different classical to advanced approaches for wheat biofortification. Conclusions By delving into micronutrient variability in Triticum species and their associated mechanisms, this review underscores the potential for targeted wheat biofortification. By integrating various approaches, from conventional breeding to modern biotechnological interventions, the path is paved towards enhancing the nutritional value of this vital crop, promising a brighter and healthier future for global food security and human well-being.

Abstract Conscious sedation is widely considered one of the techniques most commonly used to manage anxiety in both children and adults during dental procedures. The application of procedural sedation exhibits considerable variation globally. The purpose of the study was to determine the prevalence of conscious sedation in the current situation in the dental healthcare sector in Egypt and to identify the factors influencing it. An online cross-sectional analytical survey, consisting of nine multiple choice questions, was distributed through the contact lists of national dentists and social media platforms. 163 respondents completed the survey. Regarding the use of conscious sedation, only 25 (15.3%),95% confidence interval (10–21) utilized it. The percentage of participants who used conscious sedation was higher among dentists practicing pediatric dental specialists (n = 19, 76%). Academic qualification correlates significantly with the practice of conscious sedation (P = 0.002), but this was not reflected in multiple logistic regression. Indeed, while conscious sedation is part of the dental study curriculum in Egypt, its application rate is relatively low compared to other countries. This discrepancy could be attributed to a variety of factors, including resource availability, lack of training, reflecting the need to develop strategies to improve the implementation of conscious sedation in Egyptian dental practices.

Abstract A series of new 1,2,4-oxadiazole-based derivatives were synthesized and evaluated for their anti-AD potential. The results revealed that eleven compounds (1b, 2a-c, 3b, 4a-c, and 5a-c) exhibited excellent inhibitory potential against AChE, with IC50 values ranging from 0.00098 to 0.07920 µM. Their potency was 1.55 to 125.47 times higher than that of donepezil (IC50 = 0.12297 µM). In contrast, the newly synthesized oxadiazole derivatives with IC50 values in the range of 16.64–70.82 µM exhibited less selectivity towards BuChE when compared to rivastigmine (IC50 = 5.88 µM). Moreover, oxadiazole derivative 2c (IC50 = 463.85 µM) was more potent antioxidant than quercetin (IC50 = 491.23 µM). Compounds 3b (IC50 = 536.83 µM) and 3c (IC50 = 582.44 µM) exhibited comparable antioxidant activity to that of quercetin. Oxadiazole derivatives 3b (IC50 = 140.02 µM) and 4c (IC50 = 117.43 µM) showed prominent MAO-B inhibitory potential. They were more potent than biperiden (IC50 = 237.59 µM). Compounds 1a, 1b, 3a, 3c, and 4b exhibited remarkable MAO-A inhibitory potential, with IC50 values ranging from 47.25 to 129.7 µM. Their potency was 1.1 to 3.03 times higher than that of methylene blue (IC50 = 143.6 µM). Most of the synthesized oxadiazole derivatives provided significant protection against induced HRBCs lysis, revealing the nontoxic effect of the synthesized compounds, thus making them safe drug candidates. The results unveiled oxadiazole derivatives 2b, 2c, 3b, 4a, 4c, and 5a as multitarget anti-AD agents. The high AChE inhibitory potential can be computationally explained by the synthesized oxadiazole derivatives’ significant interactions with the AChE active site. Compound 2b showed good physicochemical properties. All these data suggest that 2b could be considered as a promising candidate for future development.

Abstract Optical resonators are fundamental building blocks of photonic systems, enabling meta-surfaces, sensors, and transmission filters to be developed for a range of applications. Sub-wavelength size (

Background and objective: This study investigated the protective effects of kaempferol, a natural flavonoid known for its antioxidant properties, against ochratoxin A-induced renal damage. Ochratoxin A, a nephrotoxic mycotoxin found in contaminated food and feed, primarily induces renal damage through oxidative stress. The objective was to assess kaempferol’s potential in mitigating ochratoxin A -induced renal toxicity and its underlying molecular mechanisms. Methods: Male albino mice were divided into four groups: normal control, kaempferol control, ochratoxin A -induced renal toxicity, and ochratoxin A -induced renal toxicity treated with kaempferol. Ochratoxin A was administered twice a week for 8 weeks at 5 mg/kg body weight to induce renal toxicity. Kaempferol (50 mg/kg) was administered twice a week for 8 weeks after a 4-hour interval following ochratoxin A administration. Results: Results showed that kaempferol normalized levels of blood urea nitrogen (BUN) and creatinine, indicating protection against ochratoxin A-induced pathophysiology. Kaempferol also increased phosphorylation of PI3K and AKT, potentially activating antioxidative and anti-apoptotic signaling pathways regulated by Nrf2. Additionally, kaempferol enhanced Bcl-2 activation while suppressing caspase-3, suggesting anti-apoptotic effects. Histopathological analysis revealed reduced renal damage in kaempferol-treated mice compared to those exposed to ochratoxin A alone. Conclusion: Kaempferol demonstrated efficacy in preventing ochratoxin A -induced kidney injury through antioxidative and anti-apoptotic mechanisms. These findings suggest potential therapeutic applications of kaempferol in oxidative stress-induced renal damage.

Waste from poultry droppings in Had Soualem is valuable because it is rich in organic molecules that break down easily. One way to use this waste is by making methane from it. This helps reduce its volume and its impact on the environment. We are studying how mixing this waste with green waste can assess the effect of co-digestion with a green waste co-substrate in batch mode, under mesophilic conditions at 37°C and using an infinitely mixed laboratory digester CSTR (Continuous Stirred Tank Reactor) with a capacity of 1.5 liters. During this process, the parameters pH, TOC, NTK, COD, alkalinity, and conductivity at the digester were monitored at the laboratory scale, and volatile fatty acids were modified to promote the bioconversion of biomass into methane. When everything works just right, the reactor stays stable, and it can make up to 70% methane, with only 1 to 1.5% hydrogen sulfide. This shows that combining poultry waste with green waste could be a good way to deal with these types of organic waste, turning them into something valuable and making the process more appealing.

Background: Melatonin is a peptide neurohormone naturally synthesized in the brain by the pineal gland. The basic function of melatonin is related to the causation and regulation of the sleep–wake cycle (circadian cycle). Cadmium (Cd) is a hazardous heavy metal and its toxic effects induce extensive tissue damage. The present study was undertaken to elucidate the efficiency of exogenous melatonin in attenuating Cd-induced oxidative stress. Methods: The experimental rats were allotted into four groups (n = 20), designated as untreated control, melatonin accessed, Cd exposed, and Cd exposed with access. Results: The hematological and biochemical parameters (serum and tissues) of Cd-exposed rats were significantly altered. Cd-exposed rats that received melatonin demonstrated increased erythrocytic indices; showed significantly increased levels of total proteins, catalase, total thiols, and glutathione; and exhibited decreased levels of blood Cd, urea, creatinine, bilirubin, malondialdehyde, and hydrogen peroxide. Conclusions: It was concluded that melatonin has an efficient antioxidant activity in attenuating oxidative stress induced by Cd.