Digital Commons Network^™

Transmodel: An R Package For Linear Transformation Model With Censored Data, Jie Zhou, Jiajia Zhang Ph.D.

Faculty Publications

Linear transformation models, including the proportional hazards model and proportional odds model, under right censoring were discussed by Chen, Jin, and Ying (2002). The asymptotic variance of the estimator they proposed has a closed form and can be obtained easily by plug-in rules, which improves the computational efficiency. We develop an R package TransModel based on Chen's approach. The detailed usage of the package is discussed, and the function is applied to the Veterans' Administration lung cancer data.

Race And Ethnic Group Dependent Space Radiation Cancer Risk Predictions, Francis A. Cucinotta, Premkumar B. Saganti

Health Physics and Diagnostic Sciences Faculty Research

Future space missions by national space agencies and private industry, including space tourism, will include a diverse makeup of crewmembers with extensive variability in age, sex, and race or ethnic groups. The relative risk (RR) model is used to transfer epidemiology data between populations to estimate radiation risks. In the RR model cancer risk is assumed to be proportional to background cancer rates and limited by other causes of death, which are dependent on genetic, environmental and dietary factors that are population dependent. Here we apply the NSCR-2020 model to make the first predictions of age dependent space radiation cancer …

Temperature-Induced Multi-Species Cohort Effects In Sympatric Snakes, Richard B. King

Faculty Articles, Papers, and Other Scholarship

In reptiles, reproductive maturity is often determined by size rather than age. Consequently, growth early in life may influence population dynamics through effects on generation time and survival to reproduction. Because reproductive phenology and pre- and post-natal growth are temperature dependent, environmental conditions may induce multi-species cohort effects on body size in sympatric reptiles. I present evidence of this using 10 years of neonatal size data for three sympatric viviparous snakes, Dekay's Brown snakes (Storeria dekayi), Red-bellied Snakes (S. occipitomaculata), and Common Garter snakes (Thamnophis sirtalis). End-of-season neonatal size varied in parallel across species such that snout–vent length was 36%–61% …

Guidelines For Publicly Archiving Terrestrial Model Data To Enhance Usability, Intercomparison, And Synthesis, Maegen B. Simmonds, William J. Riley, Deborah A. Agarwal, Xingyuan Chen, Shreyas Cholia, Robert Crystal-Ornelas, Ethan T. Coon, Dipankar Dwivedi, Valerie C. Hendrix, Maoyi Huang, Ahmad Jan, Zarine Kakalia, Jitendra Kumar, Charles D. Koven, Li Li, Mario Melara, Lavanya Ramakrishnan, Daniel M. Ricciuto, Anthony P. Walker, Wei Zhi, Qing Zhu, Charuleka Varadharajan

Copyright, Fair Use, Scholarly Communication, etc.

Scientific communities are increasingly publishing data to evaluate, accredit, and build on published research. However, guidelines for curating data for publication are sparse for model-related research, limiting the usability of archived simulation data. In particular, there are no established guidelines for archiving data related to terrestrial models that simulate land processes and their coupled interactions with climate. Terrestrial modelers have a unique set of challenges when publishing data due to the diversity of scientific domains, research questions, and the types and scales of simulations. Researchers in the U.S. Department of Energy’s (DOE) projects use a variety of multiscale models to …

Translating Research Into Practice-Implementation Recommendations For Pediatric Rheumatology; Proceedings Of The Childhood Arthritis And Rheumatology Research Alliance 2020 Implementation Science Retreat, Cagri Yildirim-Toruner, Rajdeep Pooni, Y Ingrid Goh, Emily Becker-Haimes, James W Dearing, Maria E Fernandez, Esi M Morgan, Gareth Parry, Jon M Burnham, Stacy P Ardoin, Fatima Barbar-Smiley, Joyce C Chang, Peter Chiraseveenuprapund, Vincent Del Gaizo, Guy Eakin, Lisa C Johnson, Yukiko Kimura, Andrea M Knight, Melanie Kohlheim, Erica F Lawson, Mindy S Lo, Nancy Pan, Andrea Ring, Tova Ronis, Rebecca E Sadun, Emily A Smitherman, Alysha J Taxter, Janalee Taylor, Richard K Vehe, Sheetal S Vora, Jennifer E Weiss, Emily Von Scheven, Mas For The Carra Implementation Science Workgroup

Faculty, Staff and Student Publications

The translation of research findings into clinical practice is challenging, especially fields like in pediatric rheumatology, where the evidence base is limited, there are few clinical trials, and the conditions are rare and heterogeneous. Implementation science methodologies have been shown to reduce the research- to- practice gap in other clinical settings may have similar utility in pediatric rheumatology. This paper describes the key discussion points from the inaugural Childhood Arthritis and Rheumatology Research Alliance Implementation Science retreat held in February 2020. The aim of this report is to synthesize those findings into an Implementation Science Roadmap for pediatric rheumatology research. …

Live-Dead Assay On Unlabeled Cells Using Phase Imaging With Computational Specificity, Chenfei Hu, Shenghua He, Young Jae Lee, Yuchen He, Edward M Kong, Hua Li, Mark A Anastasio, Gabriel Popescu

Open Access Publications

Existing approaches to evaluate cell viability involve cell staining with chemical reagents. However, the step of exogenous staining makes these methods undesirable for rapid, nondestructive, and long-term investigation. Here, we present an instantaneous viability assessment of unlabeled cells using phase imaging with computation specificity. This concept utilizes deep learning techniques to compute viability markers associated with the specimen measured by label-free quantitative phase imaging. Demonstrated on different live cell cultures, the proposed method reports approximately 95% accuracy in identifying live and dead cells. The evolution of the cell dry mass and nucleus area for the labeled and unlabeled populations reveal …

Lipid-Loaded Tumor-Associated Macrophages Sustain Tumor Growth And Invasiveness In Prostate Cancer, Michela Masetti, Roberta Carriero, Federica Portale, Giulia Marelli, Nicolò Morina, Marta Pandini, Marta Iovino, Bianca Partini, Marco Erreni, Andrea Ponzetta, Elena Magrini, Piergiuseppe Colombo, Grazia Elefante, Federico Simone Colombo, Joke M M Den Haan, Clelia Peano, Javier Cibella, Alberto Termanini, Paolo Kunderfranco, Jolanda Brummelman, Matthew Wai Heng Chung, Massimo Lazzeri, Rodolfo Hurle, Paolo Casale, Enrico Lugli, Ronald A Depinho, Subhankar Mukhopadhyay, Siamon Gordon, Diletta Di Mitri

Faculty, Staff and Student Publications

Tumor-associated macrophages (TAMs) are correlated with the progression of prostatic adenocarcinoma (PCa). The mechanistic basis of this correlation and therapeutic strategies to target TAMs in PCa remain poorly defined. Here, single-cell RNA sequencing was used to profile the transcriptional landscape of TAMs in human PCa, leading to identification of a subset of macrophages characterized by dysregulation in transcriptional pathways associated with lipid metabolism. This subset of TAMs correlates positively with PCa progression and shorter disease-free survival and is characterized by an accumulation of lipids that is dependent on Marco. Mechanistically, cancer cell-derived IL-1β enhances Marco expression on macrophages, and reciprocally, …

Evaluating The Effects Of An Lgbtq+ Educational Program On The Attitudes And Knowledge Of Undergraduate Nursing Students, Tonya Haynes, Sheila Grigsby, Alicia Hutchings, Amanda Finely, Keri Jupka, Natalie Murphy

Sigma Foundation for Nursing Research Grant Reports

Members of the LGBTQ population, due to discrimination from the general public as well as healthcare providers, have generally poorer health outcomes than their heterosexual counterparts. Fear of stigma contributes to this community's avoidance of the healthcare system and delays their evaluation until disease is often advanced. On the other side, nurses don't have the skills and knowledge to effectively treat their LGBTQ patients. While nursing education programs have begun including content related to this community, it is often minimal and crammed into curricula that are already packed with content.In an effort to increase knowledge and improve attitudes of nursing …

Srgn-Triggered Aggressive And Immunosuppressive Phenotype In A Subset Of Ttf-1-Negative Lung Adenocarcinomas, Ichidai Tanaka, Delphine Dayde, Mei Chee Tai, Haruki Mori, Luisa M Solis, Satyendra C Tripathi, Johannes F Fahrmann, Nese Unver, Gargy Parhy, Rekha Jain, Edwin R Parra, Yoshiko Murakami, Clemente Aguilar-Bonavides, Barbara Mino, Muge Celiktas, Dilsher Dhillon, Julian Phillip Casabar, Masahiro Nakatochi, Francesco Stingo, Veera Baladandayuthapani, Hong Wang, Hiroyuki Katayama, Jennifer B Dennison, Philip L Lorenzi, Kim-Anh Do, Junya Fujimoto, Carmen Behrens, Edwin J Ostrin, Jaime Rodriguez-Canales, Tetsunari Hase, Takayuki Fukui, Taisuke Kajino, Seiichi Kato, Yasushi Yatabe, Waki Hosoda, Koji Kawaguchi, Kohei Yokoi, Toyofumi F Chen-Yoshikawa, Yoshinori Hasegawa, Adi F Gazdar, Ignacio I Wistuba, Samir Hanash, Ayumu Taguchi

Faculty, Staff and Student Publications

BACKGROUND: Approximately 20% of lung adenocarcinoma (LUAD) is negative for the lineage-specific oncogene Thyroid transcription factor 1 (TTF-1) and exhibits worse clinical outcome with a low frequency of actionable genomic alterations. To identify molecular features associated with TTF-1-negative LUAD, we compared the transcriptomic and proteomic profiles of LUAD cell lines. SRGN , a chondroitin sulfate proteoglycan Serglycin, was identified as a markedly overexpressed gene in TTF-1-negative LUAD. We therefore investigated the roles and regulation of SRGN in TTF-1-negative LUAD.

METHODS: Proteomic and metabolomic analyses of 41 LUAD cell lines were done using mass spectrometry. The function of SRGN was investigated …

Hepatic Transcriptomic And Histopathological Responses Of Common Carp, Cyprinus Carpio, To Copper And Microplastic Exposure, Seyyed Morteza Hoseini, Kave Khosraviani, Delavar F Hosseinpour, Mohammad Arghideh, Fatemeh Zavvar, Seyed Hossein Hoseinifar, Doan H Van, Erfan Zabihi, Miriam Reverter

School of Biological and Marine Sciences

The combined effects of copper and polyvinyl chloride (PVC) microparticles were investigated on the metal accumulation, histopathological biomarkers, and targeted transcriptomics in Cyprinus carpio liver. The fish were exposed to 0.25 mg/L copper and/or 0.5 mg/L PVC microparticles over a 14-d period. The results showed that hepatic copper accumulation is facilitated by the PVC microparticles presence in water. All treatments induced significant hepatic stress and inflammation; however, the transcriptional responses involving in detoxification pathways and apoptotic mechanisms were mixed and often down-regulated in the fish exposed to copper and/or PVC microparticles. Exposure to copper and/or PVC microparticles induced hypermeia, leukocyte …

Overview Of The Mosaic Expedition: Snow And Sea Ice, Marcel Nicolaus, Donald K. Perovich, Gunnar Spreen, Mats A. Granskog, Luisa Von Albedyll, Michael Angelopoulos, Philipp Anhaus, Stefanie Arndt, H. Jakob Belter, Vladimir Bessonov, Gerit Birnbaum, Jörg Brauchle, Radiance Calmer, Estel Cardellach, Bin Cheng, David Clemens-Sewall, Ruzica Dadic, Ellen Damm, Gijs De Boer, Oguz Demir, Klaus Dethloff, Dmitry V. Divine, Tim Stanton, For Full Author List, See Comments Below

Faculty Research, Scholarly, and Creative Activity

Year-round observations of the physical snow and ice properties and processes that govern the ice pack evolution and its interaction with the atmosphere and the ocean were conducted during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition of the research vessel Polarstern in the Arctic Ocean from October 2019 to September 2020. This work was embedded into the interdisciplinary design of the 5 MOSAiC teams, studying the atmosphere, the sea ice, the ocean, the ecosystem, and biogeochemical processes. The overall aim of the snow and sea ice observations during MOSAiC was to characterize the physical properties …

How Does N Fertilization Or Forage Legumes Affect Forage And Animal Production?, B. G. C. Homem, I. B. G. Lima, P. P. Spasiani, José C. B. Dubeux Jr., R. M. Boddey, D. R. Casagrande

IGC Proceedings (1977-2023)

Livestock grazing in tropical climates is characterized by low productivity. Forage and animal production can be improved by applying nitrogen (N) fertiliser or using forage legumes. This 2.5-yr study assessed the canopy structure and productivity of beef cattle grazing either a mixed pasture of Brachiaria brizantha cv. Marandu (palisadegrass) and Arachis pintoi (forage peanut) cv. BRS Mandobi or a Marandu palisade grass monoculture with or without N fertilisation. The experiment was carried out in Southeast Brazil, where the canopy structure (herbage mass) and animal productivity (stocking rate and liveweight gain per ha) were compared for three types of pastures: 1) …

Managing Vegetation In Grasslands Habitats To Meet Livestock Or Wildlife Objectives, B. Sleugh, S. Flynn, D. C. Cummings, W. Hatler, D. Hillger, C. Hart

IGC Proceedings (1977-2023)

Sustainably stewarding grassland systems involves applying various practices to manipulate forage interactions with other plants, the environment, and grazing animals to meet resource manager objectives. These interactions can result in invasion or encroachment and increased abundance of weeds which hinder attainment of management objectives. Weeds influence the structure and function of pasture ecosystems whether forages are grown in improved pastures, rangeland, or grassland communities. They degrade pasture quality and reduce livestock performance by interfering with forage establishment, yield, and quality by competing for resources. Weeds reduce the feed value of forage, decrease pasture carrying capacity, and can be toxic or …

Long-Term Changes In Dry Matter Yield In Variety Trials Of Forage Species In Sweden, Magnus A. Halling

IGC Proceedings (1977-2023)

Using results from official variety testing in Sweden, long-term changes (1964-2018) in total annual dry matter (DM) yield for pure stands of red clover (Trifolium pratense) and timothy (Phleum pratense) were analysed and compared for two Swedish trial site areas: a central area (59.6-61.5°N) and a southern area (55.5-57.0°N). All trials were managed using a standard protocol, with only minor changes over time. On average for all varieties of timothy in the trials, there was an increase of 91.6 kg ha^-1 in total DM yield in the first harvest year, probably due to genetically improved …

Kentucky’S Comprehensive Outreach Program For Horse Pasture Management And Education, Krista Lea, S. Ray Smith

IGC Proceedings (1977-2023)

The University of Kentucky (UK) Horse Pasture Evaluation Program began in 2005 to improve pasture quality and quantity on Kentucky horse farms. This on-farm program collects detailed data of pasture species composition, tests for tall fescue (Schedonorus arundinaceus (Schreb.) Dumort.) toxicity, and provides farm managers with comprehensive recommendations for management. Species composition is determined using the occupancy method. In 2019, the UK Horse Pasture Health Score Card was developed to provide useful, survey-level information on pastures and allow evaluators to cover far more acres in less time, requiring fewer resources. The objective of this research was to compare accuracy …

Glycogen Kinetics Of Wistar Rats: Different Exercise Intensities And Tissue Analyzed Influence, Carlos Dellavechia De Carvalho, Carlos Augusto Kalva-Filho, Alisson Luiz Da Rocha, Adelino Sanchez Ramos Da Silva, Marcelo Papoti

International Journal of Exercise Science

International Journal of Exercise Science 15(2): 289-299, 2022. The aim of this study is to verify the influence of the intensity on muscle and hepatic glycogen depletion and recovery kinetics of Wistar rats, submitted to three acute training sessions with equalized loads. 81 male Wistar rats performed an incremental test to determine maximal running speed (MRS) and divided into 4 groups: baseline group (Control; n = 9); low intensity training session (G_Z1; n = 24; 48 minutes at 50% of MRS); moderate intensity group (G_Z2; n = 24; 32 minutes at 75% of MRS) and high …

فاعلية استخدام استراتيجية الخرائط الذهنية في تنمية المهارات الإبداعية لحل المشكلات لدى تلامذة الصف الرابع الأساسي في مادة العلوم. Effectiveness Of Using Mind Maps Strategy In The Development Of Creative Skills To Solve Problems Among Students In The Fourth Grade Basic Science, رغداء نعيسة, أحمد الربعاني

Association of Arab Universities Journal for Education and Psychology

هدف البحث إلى تعرّف فاعلية استخدام استراتيجية الخرائط الذهنية في إكساب تلامذة الصف الرابع الأساسي المهارات الإبداعية في حلّ المشكلات في مادة العلوم وحدة \\\"البيئة وتكيف الأحياء\\\". وتعرّف دلالة الفروق الإحصائية بين درجات التلامذة في اختبار المهارات الإبداعية في حلّ المشكلات وفق متغيري البحث: (الجنس، طريقة التدريس). وتكوّنت عينة البحث من (50) تلميذاً وتلميذة، توزّعوا على مجموعتين (25) تلميذاً وتلميذة في المجموعة الضابطة، و(25) تلميذاً وتلميذة في المجموعة التجريبية. وقام الباحثان بتصميم وحدة درسية في مقرّر العلوم باستخدام استراتيجية الخرائط الذهنية، وتصميم اختبار للمهارات الإبداعية في حلّ المشكلات. وخلص البحث إلى النتائج الآتية: 1-إنّ البرنامج التدريبي المقترح وفق استراتيجية الخرائط …

فاعلية التدريس القائم على التصميم الهندسي في تنمية الميول المهنية نحو العلوم والتكنولوجيا والهندسة والرياضيات (Stem) لدى طالبات الصف الثامن بسلطنة عمان. The Effectiveness Of Engineering –Based Instruction In Developing Career Interests Towards Science, Technology, Engineering And Math (Stem) Among 8th Grade Student In Oman, مروة الهنائية, سلمان البلوشي

Association of Arab Universities Journal for Education and Psychology

هدفت الدراسة الحالية إلى تقصّي فاعلية التصميم الهندسي في تنمية الميول المهنية نحو العلوم والتكنولوجيا والهندسة والرياضيات (STEM) لدى طالبات الصف الثامن في سلطنة عُمان. وتكوّنت عينة الدراسة من (48) طالبة تم توزيعهن إلى مجموعتين تجريبية ضمّت (23) طالبة تمّ إلحاقهن ببرنامج خاص قائم على التصميم الهندسي، ومجموعة ضابطة لم يتمّ إضافة أي برنامج خاص بالتصميم الهندسي لها، وضمّت (25) طالبة. كشفت النتائج عن وجود فروق ذات دلالة إحصائية عند مستوى دلالة (α ≤ 0,05) بين متوسّطات أداء المجموعتين التجريبية والضابطة في الميول المهنية المرتبطة بمجال الهندسة لصالح المجموعة التجريبية، بينما لم تظهر فروق دالّة إحصائيا في الميول المهنية المرتبطة …

مستوى الثقافة العلمية لدى معلمي الأحياء في المرحلة الأساسية العليا ومدى ممارستهم لها في تدريسهم. The Level Of Scientific Culture Among Biology Teachers Of The Upper Basic Stage And The Extent Of Their Practice Of It In Their Teaching, حسين علي حسين

Association of Arab Universities Journal for Education and Psychology

هدفت هذه الدراسة إلى الكشف عن مستوى امتلاك مكونات الثقافة العلمية الأربعة لدى معلمي الأحياء للمرحلة الأساسية، ومدى تضمينهم لها في تدريسهم، ولتحقيق هدف الدراسة، تم إعداد اختبار لقياس مستوى الثقافة العلمية لدى معلمي الأحياء، بالإضافة إلى إعداد بطاقة ملاحظة تم من خلالها تعرّف مستوى ممارسة معلمي الأحياء الثقافة العلمية في تدريسهم، تكونت من (21) فقرة، وتم تطبيق الاختبار على مجتمع الدراسة الكلي الذي تكون من (67) معلماً في مديرية لواء قصبة عمان، وقد أظهرت النتائج أن مستوى الثقافة العلمية وممارستها لدى معلمي الأحياء عموماً ضعيف، ووجود فروقات ذات دلالة إحصائية في مستوى المعرفة العلمية، والعلم وتكنولوجيا المجتمع، يعزى لمتغير …

مقروئية كتاب الأحياء للصف الحادي عشر وعلاقتها باتجاهات الطلبة نحو المادة في سلطنة عمان. Readability Of The 11th Grade Biology Book And Its Relation To Students' Attitudes Towards The Subject In The Sultanate Of Oman, محمد الشقران, عبد الله سيف التوبي

Association of Arab Universities Journal for Education and Psychology

هدفت الدراسة إلى قياس مستوى مقروئية كتاب الأحياء للصف الحادي عشر في سلطنة عمان وعلاقته باتجاهات الطلبة نحو مادة الأحياء، ولتحقيق أهداف الدراسة استخدم الباحثان المنهج الوصفي التحليلي في دراستهما، كما أعدا اختبار التتمة (كلوز) لثمانية نصوص من كتاب الأحياء لقياس مستوى مقروئيتها، ومقياساً لاتجاهات الطلبة نحو مادة الأحياء، وزع كلاهما على عينة اختيرت عشوائيا مكونة من (94) طالباً وطالبة من طلبة الصف الحادي عشر من مدرستين من المدارس الحكومية التابعة لمديرية التربية بمحافظة مسقط؛ منهم (46) طالباً، و(48) طالبة. وتوصلت الدراسة إلى النتائج التالية: إن مستوى مقروئية كتاب الأحياء للصف الحادي عشر مناسبة للطلبة في هذه المرحلة التعليمية، إذ …

أثر برنامج تعليمي قائم على المنظِّمات المتقدمة في تنمية التفكير الناقد في العلوم لدى طلبة الصف التاسع الأساسي في محافظة طولكرم. The Impact Of An Educational Program Based On Advanced Organizers In Developing Critical Thinking In Science Among Ninth Graders Students In Tulkarem Governorate, محمود أحمد الشمالي, محمود عبد الجليل رمضان

Association of Arab Universities Journal for Education and Psychology

هدفت هذه الدراسة إلى تقصّي أثر برنامج تعليمي قائم على المنظِّمات المتقدمة في تنمية التفكير الناقد في العلوم لدى طلبة الصف التاسع الأساسي في مدارس مديرية التربية والتعليم في محافظة طولكرم، وتم استخدام المنهج التجريبي بصورته شبه التجريبية، وطبقت الدراسة على عينة قصدية من (104) طالب وطالبات، انتظموا في المجموعة التجريبية وعددهم (52) طالباً وطالبةً درسوا وحدة التفاعلات الكيميائية باستخدام المنظِّمات المتقدمة، والمجموعة الضابطة وعددهم (52) طالباً وطالبةً درسوا نفس الوحدة بالطريقة الاعتيادية، ولتحقيق أغراض الدراسة تمّ بناء اختبار مهارات التفكير الناقد، وتمّ التحقق من صدقه وثباته قبل تطبيقه على عينة الدراسة، وأظهرت نتائج الدراسة وجود فرق دال إحصائياً في …

أثر برنامج تعلمي قائم على الذكاء المتعدد في تنمية مهارات عمليات العلم لدى طالبات الصف الأول الثانوي العلمي في مادة العلوم الحياتية.. The Effect Of On Instructional Program Based On Multiple Intelligences In The Development Of Science Process Skills Among 11th Female Graders In Biology, وليد حسين نوافلة, وجدان بني فواز

Association of Arab Universities Journal for Education and Psychology

هدفت الدراسة تقصي أثر استخدام برنامج تعلمي قائم على الذكاء المتعدد في تنمية مهارات عمليات العلم لدى طالبات الصف الأول الثانوي العلمي في مادة العلوم الحياتية. تكونت عينة الدراسة من (50) طالبة من طالبات الصف الأول الثانوي العلمي، وزعت إلى مجموعتين تجريبية وضابطة، وتم إعداد اختبار مهارات عمليات العلم والتأكد من صدقه وثباته، ثم طبق على المجموعتين قبل المعالجة التجريبية، ومن ثم درست المجموعة التجريبية باستخدام البرنامج التعلمي القائم على الذكاء المتعدد، والذي تكون من 9 جلسات تدريبية بواقع 90 دقيقة لكل جلسة، بيمنا المجموعة الضابطة درست بالطريقة التقليدية، ثم أعيد تطبيق اختبار عمليات العلم على المجموعتين بعد الانتهاء من …

مستوى مقروئية نصوص كتاب الأحياء للصف الحادي عشر في سلطنة عمان وعلاقته بالتحصيل الدراسي للطلبة. The Level Of Readability Of Texts Of The Biology Book For The Eleventh Grade In The Sultanate Of Oman And Its Relationship To The Academic Achievement Of Students, عبد الله سيف التوبي, محمد الشقران

Association of Arab Universities Journal for Education and Psychology

هدف البحث إلى قياس مستوى مقروئية نصوص كتاب الأحياء للصف الحادي عشر في سلطنة عمان وعلاقته بالتحصيل الدراسي للطلبة، ولتحقيق أهداف البحث، استخدم الباحثان المنهج الوصفي التحليلي في دراستهما، وأعدا اختبار التتمة (كلوز) لثمانية نصوص من كتاب الأحياء لقياس مستوى مقروئيتها، طبق البحث على عينة اختيرت عشوائياً مكونة من (94) طالبا وطالبة من طلبة الصف الحادي عشر من مدرستين من المدارس الحكومية التابعة لمديرية التربية بمحافظة مسقط، منهم (46) طالبا و(48) طالبة. وتوصل الباحثان إلى النتائج الاتية: إن مستوى مقروئية نصوص كتاب الأحياء للصف الحادي عشر مناسبة للطلبة في هذه المرحلة التعليمية؛ إذ بلغت نسبة الطلبة في المستوى فوق الإحباطي …

Increasing Precipitation Decreases Water Use Efficiency Of Alfalfa (Medicago Sativa L.) In A Semiarid Region, H. Ni, H. K. Chu, X. F. Lai, J. Q. Deng, Yuying Shen

IGC Proceedings (1977-2023)

Alfalfa (Medicago sativa L.) plays an important role within the integrated farming systems in Northwestern Loess Plateau of China, because of its traits on a high productivity, prolonged growing season, and excellent nutritive value. However, water use efficiency (WUE) is a crucial indicator for forage production under different water conditions in the semiarid regions. To explore the responses of alfalfa growth and water use to precipitation variability, we set precipitation shelters to manipulate precipitation scenario as 30% precipitation increased (P+30), normal precipitation (CK), and 30% precipitation decreased (P-30) with the measurement of dry matter yield and soil water content. …

Improving Pasture Productivity And Persistence By Renovating Or Rejuvenating, A. Omokanye, D. Westerlund, G. Hernandez-Ramirez

IGC Proceedings (1977-2023)

Forages make up a large part of the feed requirements of beef cattle, and grazing remains the most economical form of feed delivery. However, several years after pasture establishment, forage productivity and longevity usually decline. Maintaining productive forage stands in the long term becomes a major challenge that beef producers face. A 3-yr on-farm study was conducted to determine the comparative effects of several pasture rejuvenation methods, such as spraying of herbicides to control weeds and brush, Spray herbicide + direct seed in spring (RSS), forage seeding methods, fertilizer application (FERT), and pasture rest as well as aeration/spiking in fall …

Improving Forage Production Quantity And Quality Using Native Legume Species In Semi-Arid Agrosilvopastoral System, M. Louhaichi, S. Slim, M. Gamoun, S. Hassan, J. Kailene, I. Hamdaoui

IGC Proceedings (1977-2023)

Agrosilvopastoral systems provide a range of livelihood services, either directly through forage production or indirectly by the beneficial effects on soil conservation, nutrient cycling, pollutant filtering, and biodiversity enhancement. Hence, improved silvopastoral systems have ample scope to rehabilitate degraded pastures to sustain livestock production, which remains a strong pillar for the livelihoods of the agrosilvopastoral communities. To evaluate the impact of Hedysarum coronarium L. (sulla) reseeding on pasture productivity, plant cover and plant density in semi-arid silvopastoral systems, an experiment was carried out in Sbaihia Site, Zaghouan Governorate, Tunisia during 2018-2019 growing season. The experiment was laid out under a …

Improvement Of Feeding Value Of Quinoa Stalk With White Rot Fungi Treatment, M. Hanada, T. Egi, S. Muyila, J. Njiolomba, Y. Tokura

IGC Proceedings (1977-2023)

Two trials were conducted to evaluate the effect of white rot fungi treatment on feeding value of quinoa stalk. In trial 1, quinoa stalk was inoculated with Pleurotus osteratus (PO) or Pleurotus citrinopileatus (PC) at 25 °C for 90 days, and chemical composition and hardness of the stalk were measured. In trial 2, quinoa stalk was inoculated with PO, and incubated at 10 and 25 °C for 60, 90 and 120 days. After incubation, the chemical composition and hardness of the stalk were measured. In trial 1, acid detergent lignin (ADL) content in the stalk decreased in both treatments, and …

Impact Of Abnormal Climate Events On The Production Of Italian Ryegrass As A Season In The Republic Of Korea, M. Kim, J. Y. Kim, M. H. Jo, H. Jo, K. Sung

IGC Proceedings (1977-2023)

This study aimed to assess the impact of abnormal climate events on the production of Italian ryegrass (IRG), such as autumn low-temperature, severe winter cold and spring droughts in the central inland, southern inland and southern coastal regions. Seasonal climatic variables, including temperature, precipitation, wind speed, relative humidity, and sunshine duration, were used to set the abnormal climate events using principal component analysis, and the abnormal climate events were distinguished from normal using Euclidean-distance cluster analysis. Furthermore, to estimate the impact caused by abnormal climate events, the dry matter yield (DMY) of IRG between abnormal and normal climate events was …

North American Breeding Bird Survey Underestimates Regional Bird Richness Compared To Breeding Bird Atlases, Roi Ankori-Karlinsky, Michael Kalyuzhny, Katherine F. Barnes, Andrew M. Wilson, Curtis Flather, Rosalind Renfrew, Joan Walsh, Edna Guk, Ronen Kadmon

Environmental Studies Faculty Publications

Standardized data on large-scale and long-term patterns of species richness are critical for understanding the consequences of natural and anthropogenic changes in the environment. The North American Breeding Bird Survey (BBS) is one of the largest and most widely used sources of such data, but so far, little is known about the degree to which BBS data provide accurate estimates of regional richness. Here, we test this question by comparing estimates of regional richness based on BBS data with spatially and temporally matched estimates based on state Breeding Bird Atlases (BBA). We expected that estimates based on BBA data would …

Conference Program, Sharon Brownlow, Sean Palecek, Damian Marshall, Fernanda Masri

2022 | Advancing Manufacture of Cell and Gene Therapies VII

No abstract provided.