Determining of some physical and mechanical properties for designing tomato fruits cutting machine

الهدف من هذه الدراسة هو دراسة بعض الخصائص الفيزيائية والميكانيكية لثلاثة أصناف من الطماطم (نسمة ، ماسة ، 2020) للمساعدة في تصميم وتطوير آلة محددة لتقطيع الطماطم إلى نصفين متطابقين لاستخدامها في التجفيف الشمسي المفتوح. . تم تقدير الخواص عند محتوى رطوبة ثابت لثلاثة أصناف طازجة (نسمة ، ماسة ، 2020) من الطماطم عند 62.57 ، 68.58 ، 69.36٪ ديسيبل على التوالي. أظهرت النتائج أن متوسط قيمة الأبعاد المحورية ، المرتفع (H) ، القطر الأكبر (D max .) ، والقطر الأدنى (D min)..) من العينات كانت 73.98 و 69.26 و 61.03 ملم و 63.28 و 59.89 و 53.32 ملم ، و 70.99 و 53.86 و 49.60 ملم لأصناف ثمار الطماطم نسما وماسة و 2020 على التوالي. بلغ متوسط قيمة القطر الحسابي ، القطر الهندسي لثلاثة أصناف (نسمة ، ماسة ، 2020) للطماطم 69.26 و 58.76 و 58.11 و 67.69 و 58.52 و 57.33 على التوالي. وبلغ متوسط قيمة الكتلة والكثافة 181.74 و 120.14 و 109.96 و 0.991 و 0.991 و 0.972 على التوالي. في حين؛ متوسط قيمة مساحة السطح ومعامل التعبئة والكروية ونسبة العرض إلى الارتفاع كانت 144.61 ، 107.93 ، 103.65. ، 0.533 ، 0.572 ، 0.562. ، 92.13 ، 92.67 ، 81.11 ، 94.48 ، 94.99 ، 76.39 على التوالي لأصناف (نسمة ، ماسة). و 2020). كانت أدنى قيم لمعامل الاحتكاك الساكن 0.427 ، 0.266 ، 0.242 مع الخشب الرقائقي بينما أعلى قيمة كانت 0.566 ، 0.310 ، 0. 388 مطاط من ثلاثة أصناف (نسمة ، ماسة ، 2020) على التوالي. وتعني قيم الصلابة كانت 4.70 و 5.95 و 4.9 نيوتن / سم2 لأصناف (نسمة ، ماسة ، 2020) على التوالي

Molecular Characterization of Biofilm Producing Genes in Salmonellae Isolated from Chicken

Salmonella enterica considered one of the most important food-borne pathogen. Biofilm formation considered one of the main problems related to S. enterica, in this study, biofilm formation, colony morphotype, cellulose and curli production genes of 19 Salmonella isolates were tested. The results showed that 85% of isolates produced strong biofilm and 15% of isolates produced moderate biofilm on polystyrene plate with 1/20 diluted TSB. Different colony morphotypes expressed saw, sbam, and rdar morphotype when cultivated on LB containing Congo red for monitoring cellulose and curli production. All S. enterica strains possess adrA, csgD and gcpA genes using PCR. Thus in this study all Salmonella isolates formed biofilm so they give increased tolerance for antimicrobial agents and disinfectant, which results in difficulty in the treatment of diseases and causing many problems in food industry as it becomes a persistent of source of contamination

A system dynamics view of the acute bed blockage problem in the Irish healthcare system

Global population ageing is creating immense pressures on hospitals and other healthcare services, compromising their abilities to meet the growing demand from elderly patients. Current demand–supply gaps result in prolonged waiting times in emergency departments (EDs), and several studies have focused on improving ED performance. However, the overcrowding in EDs generally stems from delayed patient flows to inpatient wards – which are congested with inpatients waiting for beds in post-acute facilities. This problem of bed blocking in acute hospitals causes substantial cost burdens on hospitals. This study presents a system dynamics methodology to model the dynamic flow of elderly patients in the Irish healthcare system aimed at gaining a better understanding of the dynamic complexity caused by the system\u27s various parameters. The model evaluates the stock and flow interventions that Irish healthcare executives have proposed to address the problem of delayed discharges, and ultimately reduce costs. The anticipated growth in the nation\u27s demography is also incorporated in the model. Policy makers can also use the model to identify the potential strategic risks that might arise from the unintended consequences of new policies designed to overcome the problem of the delayed discharge of elderly patients

BM-MSCs alleviate diabetic nephropathy in male rats by regulating ER stress, oxidative stress, inflammation, and apoptotic pathways

Introduction: Diabetic nephropathy (DN), a chronic kidney disease, is a major cause of end-stage kidney disease worldwide. Mesenchymal stem cells (MSCs) have become a promising option to mitigate several diabetic complications.Methods: In this study, we evaluated the therapeutic potential of bone marrow-derived mesenchymal stem cells (BM-MSCs) in a rat model of STZ-induced DN. After the confirmation of diabetes, rats were treated with BM-MSCs and sacrificed at week 12 after treatment.Results: Our results showed that STZ-induced DN rats had extensive histopathological changes, significant upregulation in mRNA expression of renal apoptotic markers, ER stress markers, inflammatory markers, fibronectin, and intermediate filament proteins, and reduction of positive immunostaining of PCNA and elevated P53 in kidney tissue compared to the control group. BM-MSC therapy significantly improved renal histopathological changes, reduced renal apoptosis, ER stress, inflammation, and intermediate filament proteins, as well as increased positive immunostaining of PCNA and reduced P53 in renal tissue compared to the STZ-induced DN group.Conclusion: In conclusion, our study indicates that BM-MSCs may have therapeutic potential for the treatment of DN and provide important insights into their potential use as a novel therapeutic approach for DN

Audit of Maternal Mortality Ratio and Causes of Maternal Deaths in the Largest Maternity Hospital in Cairo, Egypt (Kasr Al Aini) in 2008 and 2009; Lessons Learned

This study examined maternal deaths at Cairo University Maternity Hospital between January 2008 and December 2009. The aim was to calculate Maternal Mortality Ratio (MMR) as well as identify the causes and predisposing factors to maternal deaths. Data were collected from the files of the hospitalized pregnant women in the hospital. There were 38 maternal deaths and MMR was 79 per 100,000 live births for the two years examined. The main causes of death were obstetric hemorrhage, hypertensive disorders of pregnancy and cardiac arrest. Substandard medical care and the delay in seeking of medical advice were two contributing factors to maternal deaths recorded. The need for audit and publication of all obstetric hospitals MMR to compare and identify areas of improvements is recommended.Cette étude a examiné les décès maternels au Centre Hospitalier de la maternité au Caire entre janvier 2008 et décembre 2009. L'objectif était de calculer les taux de mortalité maternelle (TMM) ainsi que d'identifier les causes et les facteurs prédisposant à la mortalité maternelle. Les données ont été recueillies à partir des dossiers des femmes enceintes hospitalisées à l'hôpital. Il y a eu 38 décès maternels et TMM était de 79 pour 100,000 naissances vivantes pour les deux années étudiées. Les principales causes de décès étaient l'hémorragie obstétricale, les troubles hypertensifs de la grossesse et l'arrêt cardiaque. Les soins médicaux de qualité inférieure et le retard dans la recherche de conseils médicaux étaient deux facteurs qui contribuent aux décès maternels enregistrés. Nous préconisons la vérification et la publication de tous les TMM des hôpitaux obstétriques pour permettre d'identifier les domaines qui méritent d’être améliorés

Using Modelling and Simulation to Improve Elderly Care in Ireland: A Case Study

Health care services both globally and domestically - are encountering critical issues due to the increasing demand for services at the time of economic recession. Hospital performance is subject to many constraints, and planning is made more difficult by the complexity and uncertainty of demand. Population ageing is creating immense pressures on healthcare facilities across the world, leaving them struggling to cope with the growing demand for elderly healthcare services. Current demand-supply gaps result in prolonged waiting times for patients and substantial cost burdens for healthcare systems due to delayed discharges. This paper reports on a project that uses modelling and simulation to address elderly care pathways in the Irish healthcare sector. The faster management of frail patients admitted to acute hospitals and the introduction of new intermediate care beds are alternative interventions that healthcare executives are interested in simulating to examine their impact on the performance of the elderly care system. The simulation model developed, along with the statistical analysis, enabled hospital services managers to assess the critical performance and financial issues of the current system, and highlighted the decision variables that could significantly improve the flow of elderly patients

Assessment of modern irrigation versus flood irrigation on groundwater potentiality in old clayey lands

Groundwater management in semiarid and arid regions, like northern Egypt, is essential for the sustainability of scarce resources through monitoring groundwater status and sources of recharge to the aquifer. In the Qalyubia Governorate, Nile Delta, Egypt, the study examined the recharge of groundwater in lands subject to flood irrigation and compared it with water-saving irrigation methods to detect how irrigation practices influence the potentiality of groundwater. A simulation of the two irrigation techniques, flood irrigation, and water-saving irrigation, was performed. Using GMS, simulations are done to calculate the water balance in the main 8 districts of Qalyubia Governorate. In comparison to flood irrigation, it was found that water-saving irrigation has less recharge intensity, which in turn causes a lowering in groundwater levels. The decline in groundwater table ranges between 10 and 50 cm. Modern irrigation influences the potentiality of the Nile Delta aquifer, which can’t be underestimated

The value of intraovarian autologous platelet rich plasma in women with poor ovarian reserve or ovarian insufficiency: a systematic review and meta-analysis

Abstract Objectives To assess the value of intraovarian PRP in women with low ovarian reserve. Search strategy Screening of databases from inception to January 2023 using the keywords related to “Platelet-rich plasma” AND “poor ovarian reserve” OR “ovarian failure”. Selection criteria Fourteen studies (1632 participants) were included, 10 included women with POR, 1 included women with POI and 3 included both POR and POI women. Data collection and analysis Extracted data included study settings, design, sample size, population characteristics, volume, timing and preparation of PRP administration, and outcome parameters. Main results AMH level was evaluated in 11 studies (2099 women). The mean difference (MD) was 0.09 with 95% CI of – 0.06, 0.24 (P = 0.25). Antral follicular count level was assessed in 6 studies (1399 women). The MD was 1.73 with 95% CI of 0.81, 2.66 (P < 0.001). The number of oocytes retrieved was evaluated in 7 studies (1413 women). The MD was 1.21 with 95% CI of 0.48, 1.94 (P = 0.001). Conclusion This systematic review found a significant improvement of AFC, the number of retrieved oocytes, the number of cleavage embryos and the cancellation rate in women with POR. Trial registration Registration number CRD42022365682