LabID-base/OpenAlex-Afillation huggingface dataset:
On real-scale LIDT testing for high power, high repetition rate CO2 lasers for EUV lithography
Year: 2025
Type: article
Topic: Laser Material Processing Techniques
Authors and affiliations:
raw_author_name: Florian Zentgraf
raw_affiliation_strings: TRUMPF Lasersystems for Semiconductor Manufacturing AG (Germany)
raw_author_name: Marcel Murr
raw_affiliation_strings: TRUMPF Lasersystems for Semiconductor Manufacturing AG (Germany)
raw_author_name: Kathrin Kromer
raw_affiliation_strings: TRUMPF Lasersystems for Semiconductor Manufacturing AG (Germany)
raw_author_name: Adrian Schürg
raw_affiliation_strings: TRUMPF Lasersystems for Semiconductor Manufacturing AG (Germany)
raw_author_name: Oliver Schlosser
raw_affiliation_strings: TRUMPF Lasersystems for Semiconductor Manufacturing AG (Germany)
raw_author_name: Tolga Ergin
raw_affiliation_strings: TRUMPF Lasersystems for Semiconductor Manufacturing AG (Germany)
raw_author_name: Lars Jensen
raw_affiliation_strings: TRUMPF Lasersystems for Semiconductor Manufacturing AG (Germany)
Optical and random laser properties of the novel multifunctional endoxifen derivative (FLTX3) and its potential for the diagnosis of breast cancer resistance
Year: 2025
Type: article
Language: en
Topic: Random lasers and scattering media
Authors and affiliations:
raw_author_name: Mario Diaz
raw_affiliation_strings: Departamento de Física, Facultad de Ciencias, Universidad de La Laguna, Tenerife, Spain; Instituto Universitatio de Neurociencias (IUNE), Spain. Electronic address: madiaz@ull.edu.es
raw_author_name: Sergio de Armas-Rillo
raw_affiliation_strings: Departamento de Física, Facultad de Ciencias, Universidad de La Laguna, Tenerife, Spain
raw_author_name: Fernando Lobo
raw_affiliation_strings: Instituto de Productos Naturales y Agrobiología (IPNA), CSIC, Tenerife, Spain; Conexión de Nanomedicina del CSIC, Spain
raw_author_name: Daniel Pereda de Pablo
raw_affiliation_strings: Departamento de Ciencias Médicas Básicas, Universidad de La Laguna, Tenerife, Spain
raw_author_name: Kevin Soler-Carracedo
raw_affiliation_strings: Departamento de Física, Facultad de Ciencias, Universidad de La Laguna, Tenerife, Spain
raw_author_name: Pablo Delgado
raw_affiliation_strings: Instituto de Productos Naturales y Agrobiología (IPNA), CSIC, Tenerife, Spain
raw_author_name: Mitzi Rodriguez
raw_affiliation_strings: Instituto de Productos Naturales y Agrobiología (IPNA), CSIC, Tenerife, Spain; Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mexico
raw_author_name: Ana Canerina-Amaro
raw_affiliation_strings: Departamento de Ciencias Médicas Básicas, Universidad de La Laguna, Tenerife, Spain
raw_author_name: Catalina Valdes-Baizabal
raw_affiliation_strings: Departamento de Ciencias Médicas Básicas, Universidad de La Laguna, Tenerife, Spain
raw_author_name: Raquel Marín
raw_affiliation_strings: Departamento de Ciencias Médicas Básicas, Universidad de La Laguna, Tenerife, Spain
raw_author_name: Dácil Hernández
raw_affiliation_strings: Instituto de Productos Naturales y Agrobiología (IPNA), CSIC, Tenerife, Spain; Conexión de Nanomedicina del CSIC, Spain
raw_author_name: Alicia Boto
raw_affiliation_strings: Instituto de Productos Naturales y Agrobiología (IPNA), CSIC, Tenerife, Spain; Conexión de Nanomedicina del CSIC, Spain
raw_author_name: Fernando Lahoz
raw_affiliation_strings: Departamento de Física, Facultad de Ciencias, Universidad de La Laguna, Tenerife, Spain. Electronic address: flahoz@ull.edu.es
Systemic regulation of plant root traits and root-mycorrhizal symbiosis by elevated CO2
Year: 2025
Type: article
Language: en
Topic: Plant responses to elevated CO2
Authors and affiliations:
raw_author_name: Golam Jalal Ahammed
raw_affiliation_strings: College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, PR China. Electronic address: ahammed@haust.edu.cn
raw_author_name: Xin Li
raw_affiliation_strings: Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, PR China. Electronic address: lixin@tricaas.com
Origin and prevalence of food-derived coagulase-negative staphylococci in fermentation: impact of protein, lipid, salt, and pH conditions
Year: 2025
Type: article
Language: en
Topic: Probiotics and Fermented Foods
Authors and affiliations:
raw_author_name: Gawon Lee
raw_affiliation_strings: Department of Food and Nutrition, Dongduk Women's University, Seoul 02748, Republic of Korea
raw_author_name: Sojeong Heo
raw_affiliation_strings: Department of Food and Nutrition, Dongduk Women's University, Seoul 02748, Republic of Korea
raw_author_name: Do-Won Jeong
raw_affiliation_strings: Department of Food and Nutrition, Dongduk Women's University, Seoul 02748, Republic of Korea. Electronic address: jeongdw@dongduk.ac.kr
Actin represses stem cell maintenance in Arabidopsis under drought stress
Year: 2025
Type: article
Language: en
Topic: Plant Molecular Biology Research
Authors and affiliations:
raw_author_name: Minghuang Chen
raw_affiliation_strings: State Key Laboratory of Cellular Stress Biology, Xiamen Key laboratory for Plant Genetics, School of Life Sciences, Xiamen University, Fujian, 361102, China
raw_author_name: Hao Chen
raw_affiliation_strings: State Key Laboratory of Cellular Stress Biology, Xiamen Key laboratory for Plant Genetics, School of Life Sciences, Xiamen University, Fujian, 361102, China
raw_author_name: Zheqi Cai
raw_affiliation_strings: State Key Laboratory of Cellular Stress Biology, Xiamen Key laboratory for Plant Genetics, School of Life Sciences, Xiamen University, Fujian, 361102, China
raw_author_name: Ruihan Weng
raw_affiliation_strings: State Key Laboratory of Cellular Stress Biology, Xiamen Key laboratory for Plant Genetics, School of Life Sciences, Xiamen University, Fujian, 361102, China
raw_author_name: Xiaofen Chen
raw_affiliation_strings: State Key Laboratory of Cellular Stress Biology, Xiamen Key laboratory for Plant Genetics, School of Life Sciences, Xiamen University, Fujian, 361102, China
raw_author_name: Tao Huang
raw_affiliation_strings: State Key Laboratory of Cellular Stress Biology, Xiamen Key laboratory for Plant Genetics, School of Life Sciences, Xiamen University, Fujian, 361102, China. Electronic address: Huangtao@xmu.edu.cn
Microbial electrolysis cell enhances adsorption-biological coupling system with pyrite filler for treatment artificial sweetener wastewater: Performance improvement and microbial metabolic regulation
Year: 2025
Type: article
Language: en
Topic: Microbial Fuel Cells and Bioremediation
Authors and affiliations:
raw_author_name: Bingya Kang
raw_affiliation_strings: Guangxi Key Laboratory of Environmental Processes and Remediation in Ecologically Fragile Regions, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China
raw_author_name: Lipeng Wu
raw_affiliation_strings: Guangxi Key Laboratory of Environmental Processes and Remediation in Ecologically Fragile Regions, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China
raw_author_name: Tingting Chen
raw_affiliation_strings: Guangxi Key Laboratory of Environmental Processes and Remediation in Ecologically Fragile Regions, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China
raw_author_name: Zhanglan Jiang
raw_affiliation_strings: Guangxi Key Laboratory of Environmental Processes and Remediation in Ecologically Fragile Regions, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China
raw_author_name: Xiaoyuan Wang
raw_affiliation_strings: Guangxi Key Laboratory of Environmental Processes and Remediation in Ecologically Fragile Regions, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China
raw_author_name: Zhexiang Cai
raw_affiliation_strings: Guangxi Key Laboratory of Environmental Processes and Remediation in Ecologically Fragile Regions, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China
raw_author_name: Yuxiang Lu
raw_affiliation_strings: Guangxi Key Laboratory of Environmental Processes and Remediation in Ecologically Fragile Regions, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China
raw_author_name: Shenglong Chen
raw_affiliation_strings: Guangxi Key Laboratory of Environmental Processes and Remediation in Ecologically Fragile Regions, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China
Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, 15 Yucai Road, Guilin 541004, PR China
University Engineering Research Center of Green Remediation and Low Carbon Development for Lijiang River Basin, Guangxi, 15 Yucai Road, Guilin 541004, PR China
raw_author_name: Chengyuan Su
raw_affiliation_strings: Guangxi Key Laboratory of Environmental Processes and Remediation in Ecologically Fragile Regions, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China
Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, 15 Yucai Road, Guilin 541004, PR China
University Engineering Research Center of Green Remediation and Low Carbon Development for Lijiang River Basin, Guangxi, 15 Yucai Road, Guilin 541004, PR China
Postoperative venous thromboembolism after colon and rectal surgery
Year: 2025
Type: article
Language: en
Topic: Venous Thromboembolism Diagnosis and Management
Authors and affiliations:
raw_author_name: Hannah K. Holland
raw_affiliation_strings: Resident Physician, Department of Surgery, Medical College of Wisconsin, Milwaukee, WI, USA
raw_author_name: Timothy J. Ridolfi
raw_affiliation_strings: Associate Professor, Division of Colorectal Surgery, Medical College of Wisconsin, Milwaukee, WI, USA
“Statistics are Pliable but It Needs an Unbiased Mind to Understand the Science”
Year: 2025
Type: article
Language: en
Topic: Statistics Education and Methodologies
Authors and affiliations:
raw_author_name: Ajay K. Mishra
raw_affiliation_strings: Department of Hepatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
raw_author_name: Surender Singh
raw_affiliation_strings: Department of Hepatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
raw_author_name: Anand V. Kulkarni
raw_affiliation_strings: Asian Institute of Gastroenterology, Hyderabad, India
raw_author_name: Amit Goel
raw_affiliation_strings: Department of Hepatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
Heat transfer enhancement in fractional Brinkman nanofluids: Effects of thermal and nanoparticle geometry
Year: 2025
Type: article
Language: en
Topic: Nanofluid Flow and Heat Transfer
Authors and affiliations:
raw_author_name: Muhammad Irfan Qadir
raw_affiliation_strings: Department of Mathematics, University of Engineering and Technology Lahore, Pakistan
raw_author_name: Ali B.M. Ali
raw_affiliation_strings: Advanced Technical College, University of Warith Al-Anbiyaa, Iraq
raw_author_name: Hakim AL Garalleh
raw_affiliation_strings: Department of Mathematical Science, College of Engineering, University of Business and Technology, Jeddah 21361, Saudi Arabia
raw_author_name: Usman Majeed
raw_affiliation_strings: Department of Mathematics, University of Engineering and Technology Lahore, Pakistan
raw_author_name: Faheem ul Islam
raw_affiliation_strings: Department of Mathematics, Minhaj University Lahore, Pakistan
raw_author_name: Ali Raza
raw_affiliation_strings: Department of Mathematics, Minhaj University Lahore, Pakistan
raw_author_name: Sami Ullah Khan
raw_affiliation_strings: Department of Mathematics, Namal University, Mianwali 42250, Pakistan
raw_author_name: Nodira Nazarova
raw_affiliation_strings: Department of Mathematics and Information Technologies in Education, Tashkent State Pedagogical University, Tashkent, Uzbekistan
raw_author_name: Manish Gupta
raw_affiliation_strings: Division of Research and Development, Lovely Professional University, Phagwara, India
raw_author_name: M. Waqas
raw_affiliation_strings: Department of Computer Science and Mathematics, Lebanese American University, Beirut, Lebanon
NUTECH School of Applied Sciences and Humanities, National University of Technology, Islamabad 44000, Pakistan
raw_author_name: M. Ijaz Khan
raw_affiliation_strings: Department of Mechanical Engineering, College of Engineering, Prince Mohammad Bin Fahd University, Al-Khobar, Saudi Arabia
Preparation of metal and F Si co-doped TiO2 aerogel catalyst by sol-gel method and its photocatalytic degradation performance
Year: 2025
Type: article
Language: en
Topic: TiO2 Photocatalysis and Solar Cells
Authors and affiliations:
raw_author_name: Shiyun Tang
raw_affiliation_strings: Guizhou Institute of Technology, Guiyang 550003, Guizhou, China
raw_author_name: Guoqiang Song
raw_affiliation_strings: School of Intelligent Materials and New Energy, Institute of Carbon Neutral New Energy, Yuzhang Normal University, Nanchang 330103, China
raw_author_name: Guifei Zhang
raw_affiliation_strings: College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou, China
raw_author_name: Claudia Li
raw_affiliation_strings: Research Centre for Sustainable Technologies, Faculty of Engineering, Computing and Science, Swinburne University of Technology, Jalan Simpang Tiga, 93350 Kuching, Sarawak, Malaysia
raw_author_name: Jaka Sunarso
raw_affiliation_strings: Research Centre for Sustainable Technologies, Faculty of Engineering, Computing and Science, Swinburne University of Technology, Jalan Simpang Tiga, 93350 Kuching, Sarawak, Malaysia
raw_author_name: Sibudjing Kawi
raw_affiliation_strings: Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
Investigation on the relationship between 1-hydroxyethyl radical and chemical composition using targeted characterization and multivariate statistical analysis: A case study on Huangjiu
Year: 2025
Type: article
Language: en
Topic: Fermentation and Sensory Analysis
Authors and affiliations:
raw_author_name: Zhimin Zhang
raw_affiliation_strings: School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
raw_author_name: Zhilei Zhou
raw_affiliation_strings: School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; Jiangnan University (Shaoxing) Industrial Technology Research Institute, Shaoxing, 312000, Zhejiang, China
raw_author_name: Qingxi Ren
raw_affiliation_strings: School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; Jiangnan University (Shaoxing) Industrial Technology Research Institute, Shaoxing, 312000, Zhejiang, China
raw_author_name: Zhongwei Ji
raw_affiliation_strings: School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; Jiangnan University (Shaoxing) Industrial Technology Research Institute, Shaoxing, 312000, Zhejiang, China
raw_author_name: Xibiao Xu
raw_affiliation_strings: Shaoxing Nverhong Winery Co., Ltd., Shaoxing, 312000, Zhejiang, China
raw_author_name: Yuezheng Xu
raw_affiliation_strings: Zhejiang Guyuelongshan Shaoxing Wine Co., Ltd., Shaoxing, 312000, China
raw_author_name: Jian Mao
raw_affiliation_strings: School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; Jiangnan University (Shaoxing) Industrial Technology Research Institute, Shaoxing, 312000, Zhejiang, China; National Engineering Research Center for Huangjiu, Shaoxing, 312000, Zhejiang, China. Electronic address: maojian@jiangnan.edu.cn
Sepia pharaonis ink derived melanin ameliorated high-fat diet induced lipid dysmetabolism: Insights from microbiome and hepatic transcription
Year: 2025
Type: article
Language: en
Topic: Regulation of Appetite and Obesity
Authors and affiliations:
raw_author_name: Miaomiao Zhou
raw_affiliation_strings: College of Biological Engineering, Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
raw_author_name: Chunsen Xia
raw_affiliation_strings: College of Biological Engineering, Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
raw_author_name: Baolian Jing
raw_affiliation_strings: College of Biological Engineering, Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
raw_author_name: Jiaxin Duan
raw_affiliation_strings: College of Biological Engineering, Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
raw_author_name: Hongyan Li
raw_affiliation_strings: College of Biological Engineering, Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
raw_author_name: Hongxia Che
raw_affiliation_strings: College of Biological Engineering, Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China. Electronic address: chechehongxia@163.com
Development and production of high energy laser coatings for meter class optics
Year: 2025
Type: article
Topic: Optical Coatings and Gratings
Authors and affiliations:
raw_author_name: Christopher VanDerhoff
raw_affiliation_strings: Zygo Corporation (United States)
raw_author_name: Robert Moore
raw_affiliation_strings: Zygo Corporation (United States)
raw_author_name: Hilario Torres Aponte
raw_affiliation_strings: Zygo Corporation (United States)
raw_author_name: Michael Gentile
raw_affiliation_strings: Zygo Corporation (United States)
raw_author_name: Sandeep Kohli
raw_affiliation_strings: Zygo Corporation (United States)
raw_author_name: Michael Albrecht
raw_affiliation_strings: Zygo Corporation (United States)
Towards provenance-aware diffusion: Key-free watermarking with Gaussian shading
Year: 2025
Type: article
Language: en
Topic: Generative Adversarial Networks and Image Synthesis
Authors and affiliations:
raw_author_name: Xiaoxiao Wang
raw_affiliation_strings: Key Laboratory of Big Data Mining and Knowledge Management, University of Chinese Academy of Sciences, Beijing, 100190, China
Research Center on Fictitious Economy and Data Science, Chinese Academy of Sciences, Beijing, 100190, China
School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
raw_author_name: Yingjie Tian
raw_affiliation_strings: Key Laboratory of Big Data Mining and Knowledge Management, University of Chinese Academy of Sciences, Beijing, 100190, China
MOE Social Science Laboratory of Digital Economic Forecasts and Policy Simulation at UCAS, University of Chinese Academy of Sciences, Beijing, 100190, China
Research Center on Fictitious Economy and Data Science, Chinese Academy of Sciences, Beijing, 100190, China
School of Economics and Management, University of Chinese Academy of Sciences, Beijing, 100190, China
Investigation of purified terephthalic acid dust explosion and its suppression by N₂ and CO₂ in a 1 m³ spherical vessel
Year: 2025
Type: article
Language: en
Topic: Combustion and Detonation Processes
Authors and affiliations:
raw_author_name: Jingui Wang
raw_affiliation_strings: College of Environment and Safety Engineering, Fuzhou University, Fuzhou 350116, PR China
Fuzhou University Zhicheng College, Fuzhou 350002, PR China
raw_author_name: Jingyuan Li
raw_affiliation_strings: College of Environment and Safety Engineering, Fuzhou University, Fuzhou 350116, PR China
raw_author_name: Shaojun Xue
raw_affiliation_strings: Fujian Huasha Institute of Energy and Design Co., Ltd., Fuzhou 350003, PR China
raw_author_name: Jiahao Zhang
raw_affiliation_strings: College of Environment and Safety Engineering, Fuzhou University, Fuzhou 350116, PR China
raw_author_name: Su Zhang
raw_affiliation_strings: College of Environment and Safety Engineering, Fuzhou University, Fuzhou 350116, PR China
Quinoa bran terpenoids ameliorates metabolic dysfunction-associated steatotic liver disease by enriching of L. murinus LQ719
Year: 2025
Type: article
Language: en
Topic: Gut microbiota and health
Authors and affiliations:
raw_author_name: Qinqin Qiao
raw_affiliation_strings: Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030031, China
raw_author_name: Shuhua Shan
raw_affiliation_strings: Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030031, China
raw_author_name: Huiqin Guo
raw_affiliation_strings: Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Tongji Shanxi Hospital, Taiyuan 030032, China
raw_author_name: Ning An
raw_affiliation_strings: Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030031, China
raw_author_name: Jiangying Shi
raw_affiliation_strings: Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030031, China
raw_author_name: Zhuoyu Li
raw_affiliation_strings: Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030031, China. Electronic address: lzy@sxu.edu.cn
Credit card fraud detection model based on optimized long short-term memory : Imbalanced class solution and overfitting reduction
Year: 2025
Type: article
Language: en
Topic: Imbalanced Data Classification Techniques
Authors and affiliations:
raw_author_name: Karima EL Hachimi
raw_affiliation_strings: LabMiA-SI, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
raw_author_name: Ghizlane Orhanou
raw_affiliation_strings: LabMiA-SI, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
raw_author_name: Lahoucine Ballihi
raw_affiliation_strings: LRIT-CNRST URAC 29, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
History and challenges of multi-organ allocation in the United States: A systematic review
Year: 2025
Type: review
Language: en
Topic: Transplantation: Methods and Outcomes
Authors and affiliations:
raw_author_name: Maggie Cheng
raw_affiliation_strings: Geisel School of Medicine, Dartmouth College, Hanover, NH, USA
raw_author_name: Steven Cao Tri Huynh
raw_affiliation_strings: Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
raw_author_name: Reid Dale
raw_affiliation_strings: Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
raw_author_name: Maria Elizabeth Currie
raw_affiliation_strings: Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA. Electronic address: mecurrie@stanford.edu