A sustainable approach for demand side management considering demand response and renewable energy in smart grids

The development of smart grids has revolutionized modern energy markets, enabling users to participate in demand response (DR) programs and maintain a balance between power generation and demand. However, users’ decreased awareness poses a challenge in responding to signals from DR programs. To address this issue, energy management controllers (EMCs) have emerged as automated solutions for energy management problems using DR signals. This study introduces a novel hybrid algorithm called the hybrid genetic bacteria foraging optimization algorithm (HGBFOA), which combines the desirable features of the genetic algorithm (GA) and bacteria foraging optimization algorithm (BFOA) in its design and implementation. The proposed HGBFOA-based EMC effectively solves energy management problems for four categories of residential loads: time elastic, power elastic, critical, and hybrid. By leveraging the characteristics of GA and BFOA, the HGBFOA algorithm achieves an efficient appliance scheduling mechanism, reduced energy consumption, minimized peak-to-average ratio (PAR), cost optimization, and improved user comfort level. To evaluate the performance of HGBFOA, comparisons were made with other well-known algorithms, including the particle swarm optimization algorithm (PSO), GA, BFOA, and hybrid genetic particle optimization algorithm (HGPO). The results demonstrate that the HGBFOA algorithm outperforms existing algorithms in terms of scheduling, energy consumption, power costs, PAR, and user comfort

Polycyclic Aromatic Hydrocarbons in Some Fishes from the Iraqi Marine Waters

This study represent the concentrations of 16 PAHs in 12 of commercial fish species (Euryglossa orientalis , Acanthopagrus araticus , Epinephelus coioides , Chirocentrus dorab , Scomberoidescommersonnianus , Scomberoides lysan , Otolithes ruber , Alepes diedaba , Tenualosa ilisha , Parastromateus niger , Pampus  argentetus , Ablennws hians ) . which were collected from the coastal area of the of Iraqi marine water during 2015. The analysis of Polycyclic Aromatic Hydrocarbons (PAHs) in fish muscles were determined using HPLC to identify the sources of PAHs, The total concentration of PAHs in fishes ranged between (0.432) ng/g dry weight in P. niger and (14.939) ng/g dry weight in  T. ilisha muscles . When we calculated the ratio of (Flouranthene to Pyrene)  and the ration of (Phenanthrene to Anthracene) and ratio of low molecular weight to high molecular weight of PAHs and the ration of Anthracene to (Anthracene + Phenanthrene ) and the ration of Benzo[a]anthracene to (Benzo[a]anthracene+ Chrysene), it is showed that the PAHs origin in fishes were Pyrogenic and Petrogenic . T. ilisha showns high ability to accumulate PAHs compounds  like Fluorene , Anthracene, Acenaphthene and Phenanthrene in muscles compared with other fishes ,  there was different ability of fish to accumulate  the PAHs from surrounded environments  . Keywords: PAHs compounds, HPLC, fishes, Iraqi marine water

Low level of Cyclooxygenase-2 transcript in the spleen of lymphoma rats supplemented with garlic powder

Cyclooxygenases (COXs) regulate tumor cell proliferation and metastasis in many types of cancers including hematological cancers. Organosulfurs derived from garlic have a potential to inhibit the expression of COX-2 in cancer patients. Objective: In this study, we evaluate the transcription levels of COX-2 in the spleen of lymphoma rats supplemented with garlic powder. Methods: Three groups of rats were equally divided into control (n=3), lymphoma (n=3), and lymphoma supplemented with garlic powder (n=3) groups. Lymphoma was induced via administration of N-methyl-N-nitrosourea (MNU) intraperitoneally 4 times in 2 week periods. Garlic powder mixed with ground commercial rat diet was given daily at 5% of feed intake, starting at day 1 of MNU exposure. All rats were kept for 24 weeks before spleen samples were collected and extracted for total RNA. The transcription levels of COX-2 transcript in the total RNA were determined using quantitative real-time reverse transcriptase polymerase chain reaction assay. The total RNA was converted into cDNA followed by amplification of COX-2 and beta-actin genes. Results: Results of the amplification of COX-2 transcripts were normalized with the housekeeping gene, beta-actin. The relative transcription level of COX-2 transcript in the spleen of lymphoma rats was 1.941±0.131 fold higher (p<0.05) than control rats (1.00±0.001 fold), while the transcription levels in the spleen of lymphoma rats supplemented with garlic was significantly lower (0.423±0.239 SE fold) than the lymphoma rats that received no supplementation of garlic powder. Conclusion: The findings suggest that garlic powder reduces the transcription of COX-2 transcript in the spleen of lymphoma rats

العربي بين األصالة والمنطق حو ا

ملخص: ّ ّ حو العربي في نهاية القرن األول للهجرة، بعدما دعت الحاجة إليه كونه الضابط للغة وحافظها من ظهر علم الن ّرجمة آلثار اليونان بدأت منذ ّحويين في القرن الثّ ّ اني، والمعروف أن حركة الت اللحن، واكتملت أصوله على أيدي الن القرن األول للهجرة بجهود السريان، الّذين سبق لهم أن ترجموا هذه اآلثار إلى لغتهم. وفي نهاية القرن الثّاني للهجرة ّ ترجمت بعض كتب أرسطو في المنطق، واتّصل المعتزلة بها، وتأثّ ّ رت بها بحوثهم، وانتقل تأثيرها إلى الدراسات ُعنى جميع هؤالء اً أن ي ّ ّحاة، وكان طبيعي ّة وقتها مؤلّفة من المتكلّمين والفقهاء والن ّة، ولقد كانت البيئة الفكري ّحوي الن ّ ّ وا بمنطق أرسطو، وكان لهم مواقفهم الخاصة، ّ ّ ة الوافدة وخاصة منطق أرسطو، فالمتكلّمون اهتم ّيارات الثّقافي بالت ّأثّر بمضمون الفكر المنطقي اليوناني، كذلك كان للفقهاء أصولهم في البحث والجدل ّة مع بعض الت وأصولهم الفكري ّ ّ حوي ووضعت أصوله، فقد ّ م الدارسون المحدثون أبحاثاً ودراسات ّ ّ ة نشأ الدرس الن والمناظرة. في هذه البيئة الفكري ّا بعض من المستشرقين ّحو العربي، وأم ّت في ثناياها عرضاً آلراء ووجهات نظر متباينة حول علم أصول الن ضم ّحو العربي ظهر ّأثّ ّ ر، وذكرت أن الن ّحو العربي بالمنطق اليوناني، وفئة ثانية أنكرت هذا الت والباحثين العرب قالوا تأثّر الن ّ ّوسط . ّة، وفئة ثالثة آثرت الت ّة عن المؤثّرات األجنبي في عزلة تام ّة ّة، منطق أرسطو، المؤثّرات الفكري ّحاة، المتكلّمون، المؤثّرات الثّقافي ّحو العربي، الن ا الكلمات الدالّ

Performance Analysis of Wireless Fading Channels: A Unified Approach

This thesis presents two major contributions. First, we consider a unified approach to model and simplify wireless fading channels or potentially fading scenarios by mixture distributions, namely using the mixture of Gaussian (MoG) and the mixture Gamma (MG) distributions. The approximation methodologies rely on maximum a posteriori and likelihood estimation techniques, such as the expectation-maximization and variational Bayes. Through the use of the mean-square error and the Kullback-Leibler divergence measures, we show that our models provide similar accuracy yet simpler representation than other existing models. In addition, we provide closed-form expressions or approximations for several performance metrics used in wireless communication systems, including the moment generating function, the raw moments, the amount of fading, the outage probability, and the average channel capacity. Second, through the use of the MoG and MG distributions, we provide a unifying and verstaile performance analysis over intricate generalized and composite fading channels in several contemporary wireless research topics, such as cognitive radio networks, cooperative- and diversity-based communications, and impulsive noise environments. The new approach and proposed distributions resolves intractable problems in many other fields, such as cognitive radio networks, cooperative networks, cascaded wireless applications and others

DESIGN OF CURRICULUM FOR EDUCATIONAL EVALUATION IN THE LIGHT OF (QUALITY MATTERS) STANDARDS AND IT'S EFFICIENCY IN DEVELOP ELECTRONIC EVALUATION SKILLS FOR STUDENTS FEMALES AT EDUCATION IN KING SAUD UNIVERSITY

هدفت هذه الدراسة إلى تصميم مقرَّرٍ إلكترونيٍّ للتقويم التربويِّ في ضوء معاييرِ كواليتي ماترز Quality Matters، وقياس فاعليَّته في تنمية مهاراتِ التقويم الإلكترونيِّ لدى (42) طالبة من طالباتِ كلِّيَّةِ التربية بجامعةِ الملك سُعُودٍ وهي مجموعة الدراسة التجريبية، طُبِقَ عليهن: (الاختبار المعرفي لمهارات التقويم الإلكتروني لمقرر التقويم التربوي، وثلاث بطاقات لملاحظة الجوانبَ المهاريَّةَ لمهارات التقويم الإلكترونيِّ). وبعد إجراء المعالجات الإحصائية أظهرت نتائج الدراسة إلى: وجود فرق دال إحصائيًا عند مستوى ( a≤ 0.01) بين متوسطي درجات عيِّنة الدِّراسة في التطبيقين القبلي والبعدي للاختبار التحصيليِّ للجانب المعرفيِّ لمهارات التقويم الإلكترونيِّ لمقرر التقويم التربوي لدى طالباتِ كلِّيَّةِ التربية بجامعةِ الملك سُعُودٍ، وذلك لصالح متوسط درجات التطبيق البعدي. &nbsp;ووجود فرق دال إحصائيًا عند مستوى ( &nbsp;a≤ 0.01) بين متوسطي درجات عيِّنة الدِّراسة في التطبيقين القبلي والبعدي لجميع المهارات الرئيسة والدرجة الكلية لبطاقات ملاحظة الجانب الأدائيِّ (الاختبارات الإلكترونية، الاستبانة الإلكترونية، ملف الانجاز الإلكتروني) لمهارات التقويم الإلكترونيِّ لمقرر التقويم التربوي لدى طالباتِ كلِّيَّةِ التربية بجامعةِ الملك سُعُودٍ، وذلك لصالح متوسط درجات التطبيق البعدي في جميع الحالات. &nbsp;مع وجود فاعلية التصميمُ المقترح لمقرَّرٍ التقويم التَّرْبَوِيِّ في ضَوْءِ مَعَايِيرِ Quality Matters في تنمية مهارات التقويم الإلكتروني لدى طالبات كلية التربية بجامعة الملك سعود. &nbsp;وقد أوصت الدراسة بما يلي: تصميم مقررات كلية التربية في ضوء معايير Quality Matters. وتدريب أعضاء هيئة التدريس على تصميم مقررات إلكترونية في ضوء معايير Quality Matters. والاهتمام بتنمية مهارات التقويم الإلكتروني لدى الطالبات المعلمات في جميع كليات التربية. والاستفادة من المقرر في تدريب المعلمات أثناء الخدمة على مهارات التقويم الإلكتروني. &nbsp;وقدمت الدراسة مجموعة مقترحات منها : دراسة اتجاهات أعضاء هيئة التدريس والطلاب حول المقرر المقترح ومعوقات تطبيقه. وتصميم بيئة تعليمية في ضوء معايير Quality Matters لتنمية مهارات التقويم الإلكتروني لدى معلمات المرحلة الثانوية. الكلمات الدلالية: كوالتي ماترز، &nbsp;التقويم الإلكتروني.Abstract:&nbsp; This study aimed to design of electronic curriculum for educational evaluation in the light of Quality Matters standards and measuring effectiveness in develop electronic evaluation skills for (42) students female from students of education college in King Saud University and it's an experimental study group apply to them :(Cognitive test for electronic evaluation skills for educational evaluation curriculum and three card for notice skills sides for electronic evaluation skills). After proceed the statistical treatments, the study results showed the following: There is a statistically function difference at the level (α &gt;01) between the average scores of the study sample in after and before application for the collective test for cognitive side foe electronic evaluation skills for educational evaluation curriculum for education college students in King Saud University for the benefit of before application scores average. There is a statistically function difference at the level (α &gt;01) between the average scores of the study sample in after and before application for all main skills and total score for performance side notice cards (Electronic tests, Electronic questionnaire, Electronic achievement file) for electronic evaluation skills for educational evaluation curriculum for education college students in King Saud University for the benefit of before application scores average. Suggested design efficiency for educational evaluation curriculum in the light of Quality Matters standards for education college students in King Saud University in electronic evaluation skills development. Recommendations: Design education college curriculum in the light of Quality Matters standards. Training faculty members on design electronic curriculums in the light of Quality Matters standards. Interesting in electronic evaluation skills development for students' teachers in all education colleges. Benefit from the curriculum to training teachers during the service on electronic evaluation skills. Suggestions: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Study the attitudes of faculty members and students about the suggested curriculum and barrier of it's application. Design an educational environment in the light of Quality Matters standards to develop electronic evaluation skills for secondary school level teachers. &nbsp; Key Word: Quality Matters- electronic evaluatio

Development and Wearer Trial of ECG-Garment with Textile-based Dry Electrodes

This paper presents the design and development process of ECG (electrocardiogram) garments using different textile-based dry electrodes and assesses their performance through wearer trials. To comply with the design criteria identified for such garments, sequences of sketches with modified design features, physical prototyping and trial with industry grade mannequin were first implemented before finalising a prototype design with three different fabrics for chest, front and back panels. ECG electrodes were configured on the chest panel individually with following two different conductive textile materials - single jersey knitted fabric and embroidery thread – to construct two different prototypes, which were wearer-trialled with a human participant. Results show that the embroidered electrodes performed better than the knitted electrodes in ECG detection in still and active conditions within the same design and construct of garment

SARS-CoV-2 vaccination modelling for safe surgery to save lives: data from an international prospective cohort study

Background: Preoperative SARS-CoV-2 vaccination could support safer elective surgery. Vaccine numbers are limited so this study aimed to inform their prioritization by modelling. Methods: The primary outcome was the number needed to vaccinate (NNV) to prevent one COVID-19-related death in 1 year. NNVs were based on postoperative SARS-CoV-2 rates and mortality in an international cohort study (surgical patients), and community SARS-CoV-2 incidence and case fatality data (general population). NNV estimates were stratified by age (18-49, 50-69, 70 or more years) and type of surgery. Best- and worst-case scenarios were used to describe uncertainty. Results: NNVs were more favourable in surgical patients than the general population. The most favourable NNVs were in patients aged 70 years or more needing cancer surgery (351; best case 196, worst case 816) or non-cancer surgery (733; best case 407, worst case 1664). Both exceeded the NNV in the general population (1840; best case 1196, worst case 3066). NNVs for surgical patients remained favourable at a range of SARS-CoV-2 incidence rates in sensitivity analysis modelling. Globally, prioritizing preoperative vaccination of patients needing elective surgery ahead of the general population could prevent an additional 58 687 (best case 115 007, worst case 20 177) COVID-19-related deaths in 1 year. Conclusion: As global roll out of SARS-CoV-2 vaccination proceeds, patients needing elective surgery should be prioritized ahead of the general population