Smart monitoring system for pressure regulator based on IOT

In the last years, the interconnection of everyday instruments with internet using internet of thinks (IOT), is widely used as a monitoring and controlling in engineering as in smart cities, environmental, others. In this paper, a remote monitoring system of a pressure regulator is developed through an internet of thinks (IOT) communication tool, using MATLAB® programming platforms. The development of monitoring system for acquisition and communication corresponds to the NodeMCU as a microcontroller with ESP8266 for Wi-Fi connected. This system allows to monitor the reference of the pressure regulator and monitor the information of the transducers machine of the plant. Among the advantages of this type of development is that the server is free, and the development system is low cost, also with this type of projects can strengthen the infrastructure of laboratory equipment in engineering to be controlling in a way remote

Design and implementation : a smart monitoring and controlling system of three-phase photovoltaic inverter based on LoRa

In this paper, a new smart monitor and control system has been designed for injected power application to grid from a three-phase photovoltaic inverter (a smart monitor and control system (SMCS)). The system consists two main units. Firstly, the control system unit: this unit connects directly to the inverter to measure the output voltage of three-phase photovoltaic inverter and the control circuit, It can turn the inverter 'on' or 'off' from a long distance. Secondly, the monitoring unit: this unit is designed to monitor the states of the photovoltaic inverter system from long distances. It has two monitoring options OLED and a smartphone monitoring application. LoRa technique (long range) used to send and receive data between controllers system and monitoring system. LoRa is a new type of wireless communication technology within the Internet of Things (IoT). The SMCS application has been designed by using open source software "MIT App Inventor 2"; this application is used to sends and receives the data from a control unit by using Bluetooth as a wireless communication in order to monitor and control the whole system. The main advantage of the SMCS that it can monitor and control three-phase photovoltaic inverters that have been installed in remote and rural areas

Infected pancreatic necrosis: outcomes and clinical predictors of mortality. A post hoc analysis of the MANCTRA-1 international study

: The identification of high-risk patients in the early stages of infected pancreatic necrosis (IPN) is critical, because it could help the clinicians to adopt more effective management strategies. We conducted a post hoc analysis of the MANCTRA-1 international study to assess the association between clinical risk factors and mortality among adult patients with IPN. Univariable and multivariable logistic regression models were used to identify prognostic factors of mortality. We identified 247 consecutive patients with IPN hospitalised between January 2019 and December 2020. History of uncontrolled arterial hypertension (p = 0.032; 95% CI 1.135-15.882; aOR 4.245), qSOFA (p = 0.005; 95% CI 1.359-5.879; aOR 2.828), renal failure (p = 0.022; 95% CI 1.138-5.442; aOR 2.489), and haemodynamic failure (p = 0.018; 95% CI 1.184-5.978; aOR 2.661), were identified as independent predictors of mortality in IPN patients. Cholangitis (p = 0.003; 95% CI 1.598-9.930; aOR 3.983), abdominal compartment syndrome (p = 0.032; 95% CI 1.090-6.967; aOR 2.735), and gastrointestinal/intra-abdominal bleeding (p = 0.009; 95% CI 1.286-5.712; aOR 2.710) were independently associated with the risk of mortality. Upfront open surgical necrosectomy was strongly associated with the risk of mortality (p < 0.001; 95% CI 1.912-7.442; aOR 3.772), whereas endoscopic drainage of pancreatic necrosis (p = 0.018; 95% CI 0.138-0.834; aOR 0.339) and enteral nutrition (p = 0.003; 95% CI 0.143-0.716; aOR 0.320) were found as protective factors. Organ failure, acute cholangitis, and upfront open surgical necrosectomy were the most significant predictors of mortality. Our study confirmed that, even in a subgroup of particularly ill patients such as those with IPN, upfront open surgery should be avoided as much as possible. Study protocol registered in ClinicalTrials.Gov (I.D. Number NCT04747990)

Mortality from gastrointestinal congenital anomalies at 264 hospitals in 74 low-income, middle-income, and high-income countries: a multicentre, international, prospective cohort study

Summary Background Congenital anomalies are the fifth leading cause of mortality in children younger than 5 years globally. Many gastrointestinal congenital anomalies are fatal without timely access to neonatal surgical care, but few studies have been done on these conditions in low-income and middle-income countries (LMICs). We compared outcomes of the seven most common gastrointestinal congenital anomalies in low-income, middle-income, and high-income countries globally, and identified factors associated with mortality. Methods We did a multicentre, international prospective cohort study of patients younger than 16 years, presenting to hospital for the first time with oesophageal atresia, congenital diaphragmatic hernia, intestinal atresia, gastroschisis, exomphalos, anorectal malformation, and Hirschsprung’s disease. Recruitment was of consecutive patients for a minimum of 1 month between October, 2018, and April, 2019. We collected data on patient demographics, clinical status, interventions, and outcomes using the REDCap platform. Patients were followed up for 30 days after primary intervention, or 30 days after admission if they did not receive an intervention. The primary outcome was all-cause, in-hospital mortality for all conditions combined and each condition individually, stratified by country income status. We did a complete case analysis. Findings We included 3849 patients with 3975 study conditions (560 with oesophageal atresia, 448 with congenital diaphragmatic hernia, 681 with intestinal atresia, 453 with gastroschisis, 325 with exomphalos, 991 with anorectal malformation, and 517 with Hirschsprung’s disease) from 264 hospitals (89 in high-income countries, 166 in middleincome countries, and nine in low-income countries) in 74 countries. Of the 3849 patients, 2231 (58·0%) were male. Median gestational age at birth was 38 weeks (IQR 36–39) and median bodyweight at presentation was 2·8 kg (2·3–3·3). Mortality among all patients was 37 (39·8%) of 93 in low-income countries, 583 (20·4%) of 2860 in middle-income countries, and 50 (5·6%) of 896 in high-income countries (p<0·0001 between all country income groups). Gastroschisis had the greatest difference in mortality between country income strata (nine [90·0%] of ten in lowincome countries, 97 [31·9%] of 304 in middle-income countries, and two [1·4%] of 139 in high-income countries; p≤0·0001 between all country income groups). Factors significantly associated with higher mortality for all patients combined included country income status (low-income vs high-income countries, risk ratio 2·78 [95% CI 1·88–4·11], p<0·0001; middle-income vs high-income countries, 2·11 [1·59–2·79], p<0·0001), sepsis at presentation (1·20 [1·04–1·40], p=0·016), higher American Society of Anesthesiologists (ASA) score at primary intervention (ASA 4–5 vs ASA 1–2, 1·82 [1·40–2·35], p<0·0001; ASA 3 vs ASA 1–2, 1·58, [1·30–1·92], p<0·0001]), surgical safety checklist not used (1·39 [1·02–1·90], p=0·035), and ventilation or parenteral nutrition unavailable when needed (ventilation 1·96, [1·41–2·71], p=0·0001; parenteral nutrition 1·35, [1·05–1·74], p=0·018). Administration of parenteral nutrition (0·61, [0·47–0·79], p=0·0002) and use of a peripherally inserted central catheter (0·65 [0·50–0·86], p=0·0024) or percutaneous central line (0·69 [0·48–1·00], p=0·049) were associated with lower mortality. Interpretation Unacceptable differences in mortality exist for gastrointestinal congenital anomalies between lowincome, middle-income, and high-income countries. Improving access to quality neonatal surgical care in LMICs will be vital to achieve Sustainable Development Goal 3.2 of ending preventable deaths in neonates and children younger than 5 years by 2030

E-commerce adoption by SMEs and its effect on marketing performance: An extended of TOE framework with ai integration, innovation culture, and customer tech-savviness

Even though the benefits of e-commerce for Small and Medium-Sized (SMEs) are enormous, not many SMEs have adopted e-commerce, especially in Palestine. Therefore, knowing what factors encourage SMEs to adopt e-commerce is necessary. However, e-commerce research has only been carried out on large-scale businesses. In contrast, studies on SMEs companies, especially regarding adopting e-commerce, have not been widely conducted. So, this research is important to determine what factors drive the adoption of e-commerce and the effect on marketing performance in Palestinian SMEs. The study's theoretical foundation is based on the TOE framework with AI Integration, Innovation Culture, and Customer Tech-Savviness. Using a simple random sampling technique from an online questionnaire, 305 SMEs were chosen as the sample for the study. The data were evaluated using partial least squares structural equation modelling (PLS-SEM) to explore the relationships among exogenous, mediator, and endogenous variables. Based on the study's results, it can be concluded that AI Integration, Customer Savviness, innovative culture, competitive pressure and business partner pressure factors positively and significantly influence e-commerce adoption. In addition, adopting E-commerce positively and significantly affects SMEs' Marketing Performance. Based on the results of this study, theoretical implications for E-Commerce adoption in Palestinian SMEs and managerial implications are recommended accordingly

المكونات الكيميائية للزيت العطري المستخلص من الأجزاء الهوائية لنبات المرار (Centaurium pulchellum) وخصائصها البيولوجية المحتملة

ازداد مؤخرا الاهتمام العالمي بالنباتات الطبية المستخدمة في الطب الشعبي باعتبارها مصدراً مهماً للمركبات الطبيعية، ذات الأنشطة البيولوجية المختلفة، ودورها في اكتشاف وتطوير عقاقير جديدة. ومن بين النباتات الطبية المستخدمة في الطب الشعبي في سوريا نبات Centaurium pulchellum، والمعروف محلياً باسم المرار. جمعت الأجزاء الهوائية لنبات المرار من منطقة جبلية في محافظة اللاذقية-سوريا، وتم الحصول على الزيت العطري باستخدام جهاز كليفنجر بمردود بلغ (0.88%)، وقد نتج عن تحليل الزيت العطري المتحصل عليه من خلال تقانة GC-MS، تحديد (75) مركب تمثل (99.56%) من إجمالي الزيت، وكانت المركبات الرئيسية المحددة في الزيت العطري: β-Damascenone (13.18%)، Ledol (10.73%)، Hexahydrofarnesyl acetone (8.42%)، (E)-Verbenol (6.37%). أظهر تحليل GC-MS في هذا العمل للمرة الأولى سيطرة المركبات التربينية على محتوى الزيت العطري للأجزاء الهوائية لنبات المرار، والتي تمتلك أنشطة بيولوجية متنوعة، ويبرز أهميته كعقار نباتي محتمل للاستفادة منه في التطبيقات الدوائية والغذائية، ويشجع لإجراء المزيد من الأبحاث على هذا النبات لتطوير مستحضرات صيدلانية نباتيه جديده

Cirugía artroscópica versus reparación miniabierta del desgarro del manguito rotador de espesor total, ¿qué intervención tiene el mejor resultado? Revisión de la evidencia más reciente

The evolution of arthroscopic surgery led to depending arthroscopic repair of rotator cuff tears. There is some controversy in the literature about the clinical outcomes. However, would the use of arthroscopic rotator cuff repairs provide better clinical outcomes? The general themes in this review will be Postoperative Pain and Functional outcome, Re-tear rate, adhesive capsulitis, Operative time and The Cost of arthroscopic versus mini-open rotator cuff repair. The search strategy included the evidence based reports relevant to the surgical management (Open and Arthroscopic) of the Rotator cuff tears. The Inclusion criteria were the available evidence from randomised controlled trial, systematic reviews and meta-analyses. Most of the available evidences demonstrated no significant difference between the arthroscopic and mini-open repair in the primary outcomes. There was a lack of high evidence regarding the re-tear rate of the postoperative rotator cuff repair, the risk of adhesive capsulitis in both interventions and the cost.La evolución de la cirugía artroscópica llevó a la reparación artroscópica dependiente de los desgarros del manguito rotador. Existe cierta controversia en la literatura sobre los resultados clínicos. Sin embargo, ¿el uso de reparaciones artroscópicas del manguito rotador proporcionaría mejores resultados clínicos? Los temas generales de esta revisión serán el dolor posoperatorio y el resultado funcional, la tasa de re-desgarro, la capsulitis adhesiva, el tiempo operatorio y el costo de la reparación artroscópica versus mini-abierta del manguito rotador. La estrategia de búsqueda incluyó los informes basados ​​en evidencia relevantes para el tratamiento quirúrgico (abierto y artroscópico) de los desgarros del manguito rotador. Los criterios de inclusión fueron la evidencia disponible de ensayos controlados aleatorios, revisiones sistemáticas y metanálisis. La mayoría de las evidencias disponibles no demostraron diferencias significativas entre la reparación artroscópica y la miniabierta en los resultados primarios. Hubo una falta de evidencia alta con respecto a la tasa de re-desgarro de la reparación posoperatoria del manguito rotador, el riesgo de capsulitis adhesiva en ambas intervenciones y el costo

Prevalence of hypertension links with body mass index by academic population in Babylon city

Many risk factors have been listed that predispose to the occurrence of high blood pressure (BP). Although high body mass index (BMI) is a recognized risk factor for hypertension, the cutoff value for the high BMI was not taken into consideration as a predictor risk. There is no clear data on the occurrence of hypertension in Iraq in the highly educated population. Moreover, studies on hypertension in Iraq have been limited to a few studies. To assess and study the prevalence of BP in the academic population of Babylon city, a prospective study of 100 people was conducted. In the course of 3 months, during their work at the university in the morning, the questionnaire was filled out along with the body weight measurement. The receiver operating characteristic curve was used to measure the maximum area under the curve for the BMI score. Outcomes demonstrated that despite the high level of education, the prevalence of hypertension remains unacceptable. Awareness raising about the risk factors should be addressed through ongoing health education in health sectors and media. BMI of more than 25 could be considered a predictable risk value

An improved sic-mosfet gate driver circuit controlled by DSPIC33FJ256GP710A

SIC-MOSFETs are commonly used in high power inverter and converter circuits and can require significant isolated gate drive power to switch optimally. One of the main requirements for an optocoupler gate driver circuit is the ability to provide high output peak current to charge or discharge the drive transistor quickly to prevent loss of switch. This paper describes the new SICMOSET gate driver circuit, the performance characteristics it needs, and how to give advantages over alternative gate driver circuits. The same considerations apply to the original to MOSFET and IGBT. The dsPIC33FJ256GP710A is one of the microcontroller family made by microchip technology and was used as a microcontroller to generate the PWM with high frequency. The principles of operation and design requirements of the circuit are presented in this paper. Also, the experimental results are presented to demonstrate the efficient functioning of the designed circuit. The circuit's feature is designed with DC insulation and full high-current circuit protection at the output side