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Giant chiro-optical responses in multipolar-resonances-based single-layer dielectric metasurfaces

Photonics Research 2021年第9期9卷 1667-1674页

作者： hafiz saad khaliq INKI KIM AIMA ZAHID JOOHOON KIM TAEJUN LEE TREVON BADLOE YESEUL KIM MUHAMMAD ZUBAIR KASHIF RIAZ MUHAMMAD QASIM MEHMOOD JUNSUK RHO NanoTech Lab Department of Electrical EngineeringInformation Technology University(ITU)of the PunjabLahore 54600Pakistan Department of Mechanical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Department of Chemical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea POSCO-POSTECH-RIST Convergence Research Center for Flat Optics and Metaphotonics Pohang 37673Republic of Korea National Institute of Nanomaterials Technology(NINT) Pohang 37673Republic of Korea

Chiro-optical effects offer a wide range of potential applications in nanophotonics,such as advanced imaging and molecular sensing and *** single-layer metasurfaces composed of subwavelength meta-atoms have gained significant attention due to their exceptional characteristics in light–matter *** metasurface-based devices have manipulated electromagnetic waves,the compact on-chip realization of giant chiro-optical effects remains a challenge at optical *** this work,we experimentally and numerically demonstrate an all-dielectric metasurface to realize large chiro-optical effects in the visible ***,the proposed strategy of utilizing achiral nanofins instead of conventional chiral structures provides an extra degree of design *** mutual coupling between carefully engineered nanofins produces constructive and destructive interference,leading to the asymmetric transmission of 70%and average circular dichroism exceeding 60%.We investigate the underlying mechanism behind the chiro-optical effects using the theory of multipolar *** proposed design mechanism maximizes the chiro-optical response through a single-layer metasurface with potential applications in high-efficiency integrated ultrathin polarization rotators and shapers,chiral polarizers for optical displays,chiral beam splitters,and chiral sensors.

关键词： chiral dielectric polar

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Sepsis during short bowel syndrome hospitalizations:Identifying trends,disparities,and clinical outcomes in the United States

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World Journal of Gastrointestinal Pathophysiology 2024年第1期15卷 26-36页

作者： Dushyant Singh Dahiya Jennifer Wachala Shantanu Solanki Dhanshree Solanki Asim Kichloo Samantha Holcomb Uvesh Mansuri Khwaja saad Haq Hassam Ali Manesh Kumar Gangwani Yash R Shah Teresa Varghese hafiz Muzaffar Akbar Khan Simon Peter Horslen Thomas D Schiano Syed-Mohammed Jafri Division of Gastroenterology Hepatology&MotilityThe University of Kansas School of MedicineKansas CityKS 66160United States Department of Internal Medicine Samaritan Medical CenterWatertownNY 13601United States Division of Gastroenterology Hepatology&Nutrition The University of Texas MD Anderson Cancer CenterHoustonTX 77030United States Department of Medicine Institute for Foreign Medical Graduate EducationHoustonTX 77030United States Department of Internal Medicine MedStar Harbor HospitalBaltimoreMD 21225United States Department of Internal Medicine WellStar Spalding Regional HospitalGriffinGA 30224United States Division of Gastroenterology Hepatology and NutritionEast Carolina University/Brody School of MedicineGreenvilleNC 27858United States Department of Gastroenterology and Hepatology University of Arkansas for Medical SciencesLittle RockAR 72205United States Department of Internal Medicine Trinity Health Oakland/Wayne State UniversityPontiacMI 48341United States Division of Gastroenterology and Hepatology SUNY Upstate Medical UniversitySyracuseNY 13210United States Department of Pediatrics School of Medicine and UPMC Children’s Hospital of PittsburghUniversity of PittsburghPittsburghPA 15219United States Division of Liver Diseases Icahn School of Medicine at Mount SinaiNew YorkNY 10029United States Division of Gastroenterology and Hepatology Henry Ford HospitalDetroitMI 48202United States

BACKGROUND Short bowel syndrome(SBS)hospitalizations are often complicated with *** is a significant paucity of data on adult SBS hospitalizations in the United States and across the *** To assess trends and outcomes of SBS hospitalizations complicated by sepsis in the United *** The National Inpatient Sample was utilized to identify all adult SBS hospitalizations between *** study cohort was further divided based on the presence or absence of *** were identified,and hospitalization characteristics and clinical outcomes were *** of mortality for SBS hospitalizations complicated with sepsis were *** Of 247097 SBS hospitalizations,21.7%were complicated by *** SBS hospitalizations had a rising trend of hospitalizations from 20.8%in 2005 to 23.5%in 2014(P trend<0.0001).Compared to non-septic SBS hospitalizations,septic SBS hospitalizations had a higher proportion of males(32.8%vs 29.3%,P<0.0001),patients in the 35-49(45.9%vs 42.5%,P<0.0001)and 50-64(32.1%vs 31.1%,P<0.0001)age groups,and ethnic minorities,i.e.,Blacks(12.4%vs 11.3%,P<0.0001)and Hispanics(6.7%vs 5.5%,P<0.0001).Furthermore,septic SBS hospitalizations had a higher proportion of patients with intestinal transplantation(0.33%vs 0.22%,P<0.0001),inpatient mortality(8.5%vs 1.4%,P<0.0001),and mean length of stay(16.1 d vs 7.7 d,P<0.0001)compared to the non-sepsis cohort.A younger age,female gender,White race,and presence of comorbidities such as anemia and depression were identified to be independent predictors of inpatient mortality for septic SBS *** Septic SBS hospitalizations had a rising trend between 2005-2014 and were associated with higher inpatient mortality compared to non-septic SBS hospitalizations.

关键词： Short bowel syndrome Sepsis Outcomes Mortality Trends

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Corrosion Resistance of API5L X52 Carbon Steel in Sulfide Polluted Environments

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Materials Sciences and Applications 2016年第1期7卷 39-50页

作者： Randa Abdel-Karim Mohamed Ali Farag hafiz Abdel-Azim Ahmed saad El-Raghy Department of Metallurgy Faculty of Engineering Cairo University Giza Egypt

In the present work, the corrosion behavior of base and welded API5L X-52 carbon steel coupons in synthetic ground water solution NS-4 was studied. Subsequently, the morphology and composition of the corrosion product deposits were determined using scanning electron microscopy (SEM). Based on weight loss as well as Tafel’s measurements, increasing the sulfide ions content above 0.4 mM, had an inhibition effect on the corrosion behavior of carbon steel. According to EDAX analyses, increasing of sulfide concentration from 0.4 to 4 mM Na2S, the Fe/S ratio decreased from 12.02 at 0.4 mM to 2.6 at 4 mM Na2S.

关键词： Carbon Steel Sulfides Weight Loss Anodic Dissolution Polarization

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Effect of Nitrogen on Yield and Oil Quality of Sunflower (<i>Helianthus Annuus</i>L.) Hybrids under Sub Humid Conditions of Pakistan

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American Journal of Plant Sciences 2012年第2期3卷 243-251页

作者： Wajid Nasim Ashfaq Ahmad Asghari Bano Rabiu Olatinwo Muhammad Usman Tasneem khaliq Aftab Wajid hafiz Mohkum Hammad Muhammad Mubeen Muzzammil Hussain Adaptive Research Farm Government of Punjab Lahore Pakistan Agro-Climatology Laboratory Department of Agronomy University of Agriculture Faisalabad Pakistan Department of Biological & Agricultural Engineering University of Georgia Griffin USA Department of Irrigation & Drainage University of Agriculture Faisalabad Pakistan Department of Plant Sciences Quaid-i-Azam University Islamabad Pakistan

Sunflower (Helianthus annuus L.) has emerged as an economically important crop in Pakistan due to its significant share in vegetable oil production. The plant metabolic processes require protein to increase the vegetative, reproductive growth and yield of the crop. The protein is wholly dependent upon the amount of nitrogen fertilization available for plant use. A two-year field study was conducted in 2008 and 2009. The objective was to determine the effect of different nitrogen (N) levels (N1 = 0 kg·ha–1, N2 = 60 kg·ha–1, N3 = 120 kg·ha–1, N4 = 180 kg·ha–1 and N5 = 240 kg·ha–1) on three sunflower hybrids (Hysun-33, Hysun-38 and Poineer-64A93) in agro-climatic conditions of Gujranwala, a sub-humid region in the centre of the Punjab province of Pakistan. A randomized complete block design split plot experiment was set-up with cultivars in the main plots and N levels in the subplots. Results showed that Hysun-38 gave maximum TDM (15815 kg·ha–1) and maximum grain yield (3389 kg·ha–1), while minimum TDM (14640 kg·ha–1) and grain yield (3125 kg·ha–1) was observed in Hysun-33. Among different N rates evaluated, N4 gave maximum TDM (17890 kg·ha–1) and grain yield (3809 kg·ha–1) compared to the other N rates. The maximum oil content (46.2%) was observed in Hysun-38 without application of N fertilizer (N1), while the minimum oil content (40.6%) was observed from N5 treatment. In conclusion, the application of 180 kg·ha–1 N to Hysun-38 provided the best combination for good yield in sunflower crop under the prevailing sub-humid conditions of Pakistan.

关键词： Helianthus annuus L. Nitrogen Rates Yield Subhumid Conditions Pakistan

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OILCROP-SUN Model Relevance for Evaluation of Nitrogen Management of Sunflower Hybrids in Sargodha, Punjab

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American Journal of Plant Sciences 2013年第9期4卷 1731-1735页

作者： Ashfaq Ahmad Amjed Ali Tasneem khaliq Syed Aftab Wajid Zafar Iqbal Muhammad Ibrahim hafiz Muhammad Rashad Javeed Gerrit Hoogenboom Agro-Climatology Lab University of Agriculture Faisalabad Pakistan College of Agriculture D. G. Khan Pakistan NFC Institute of Engineering and Technology Multan Pakistan University College of Agriculture University of Sargodha Sargodha Pakistan Washington State University Pullman USA.

The experiments were conducted to evaluate the performance of crop system (DSSAT) OILCROP-SUN model simulating growth & development and achene yield of sunflower hybrids in response to nitrogen under irrigated conditions in semi arid environment, Sargodha, Punjab. The model was evaluated with observed data collected in trials which were conducted during spring season in 2010 and 2011 in Sargodha, Punjab, Pakistan. Split plot design was used in layout of experiment with three replications. The hybrids (Hysun-33 & S-278) and N levels (0, 75, 150 and 225 ***-1) were allotted in main and sub plots, respectively. The OILCROP-SUN model showed that the model was able to simulate growth and yield of sunflower with an average of 10.44 error% between observed and simulated achene yield (AY). The results of simulation analysis indicated that nitrogen rate of 150 ***-1 (N3) produced the highest yield as compared to other treatments. Furthermore, the economic analysis through mean Gini Dominance also showed the dominance of this treatment compared to other treatment combinations. Thus management strategy consisting?of treatment 150 ***-1 was the best for high yield of sunflower hybrids.

关键词： Decision Support System for Agro-Technology Transfer Nitrogen Achene Yield Crop Modeling

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Preparedness for handling injuries by female primary school teachers: A cross-sectional survey in Southwestern Saudi Arabia

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Journal of Acute Disease 2019年第6期8卷 239-244页

作者： hafiz A Makeen Ahmed A Albarraq Otilia J F Banji Shamna Machanchery AbdulKarimMeraya saad Alqahtani Amal Abdullah Mubaraki David Banji Pharmacy Practice Research Unit Department of Clinical PharmacyCollege of PharmacyJazan UniversitySaudi Arabia

Objective:To assess the preparedness for handling injuries by female primary school teachers based on their knowledge,attitude,practice and their willingness to learn first ***:A cross-sectional questionnaire on first aid was provided to female primary school teachers,and the knowledge,attitude,practice and their willingness to learn first aid were *** were analyzed using SPSS version *** data were analyzed by one-way ANOVA,categorical variables were analyzed by the Chi-square *** level of significance was set at P<***:In total,464 teachers of different age groups and education *** mean knowledge score was low but the mean attitude score was *** consent was sought by one-fourth of the teachers,and 25.6%of teachers documented the health status of *** of the teachers desired to have a first aider,and they were keen on training(62.3%)and educating children(88.1%)on first *** scores were significantly impacted by age(P<0.05)and experience(P<0.01),while specialization impacted mean practice scores(P<0.001).Teachers'qualification(P<0.05),first action to be taken at the accident site(P<0.05),and frequency of training(P<0.05),were significantly associated with the need of a first ***:Based on the paucity of awareness and expertise,on priority basis,it is important to strengthen teachers'*** safety is an important public health issue and can be improved by educating and training teachers.

关键词： First aid School teachers Accidents Injury Child safety Female

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