LabID-base/OpenAlex-Afillation huggingface dataset:
Robust antibody and T cell responses tracked longitudinally in patients with long COVID
Year: 2025
Type: article
Language: en
Topic: Long-Term Effects of COVID-19
Authors and affiliations:
raw_author_name: Marina Metaxaki
raw_affiliation_strings: Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Cambridge CB2 0AW, UK
raw_author_name: Ranjana Ram
raw_affiliation_strings: Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Cambridge CB2 0AW, UK
raw_author_name: Marianne Perera
raw_affiliation_strings: Present address: Department of Pathology, University of Cambridge, Cambridge CB2 0QQ, UK
raw_author_name: Mark Wills
raw_affiliation_strings: Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Cambridge CB2 0AW, UK
Department of Medicine, University of Cambridge, Cambridge CB2 0QQ, UK
raw_author_name: Benjamin A. Krishna
raw_affiliation_strings: Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Cambridge CB2 0AW, UK
Department of Medicine, University of Cambridge, Cambridge CB2 0QQ, UK
raw_author_name: Nyarie Sithole
raw_affiliation_strings: Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Cambridge CB2 0AW, UK
Department of Infectious Diseases, Cambridge University Hospitals NHS Foundation Trust, Cambridge CB2 0QQ, UK
Department of Medicine, University of Cambridge, Cambridge CB2 0QQ, UK
The Carnegie Elective Classifications: A methodological guide for community engagement research
Year: 2025
Type: article
Language: en
Topic: Service-Learning and Community Engagement
Authors and affiliations:
raw_author_name: Andrew Pearl
raw_affiliation_strings: Kansas State University
raw_author_name: Cammie Jones-Friedrichs
raw_affiliation_strings: University of Southern Mississippi
raw_author_name: Elaine Ward
raw_affiliation_strings: Merrimack College
raw_author_name: Henry R. Cunningham
raw_affiliation_strings: University of Louisville
raw_author_name: Jennifer M. Azordegan
raw_affiliation_strings: Australian Catholic University
raw_author_name: Tabatha Cruz
raw_affiliation_strings: University of Minnesota
raw_author_name: Felicia Deas
raw_affiliation_strings: Spelman College
raw_author_name: Emily Locke
raw_affiliation_strings: University of Alabama
raw_author_name: Tania D. Mitchell
raw_affiliation_strings: University of Maryland, College Park
raw_author_name: Tanvi V. Padalkar
raw_affiliation_strings: University of Alabama at Birmingham
raw_author_name: Diana Quito
raw_affiliation_strings: University of Alabama
raw_author_name: Carol Cutler White
raw_affiliation_strings: Mississippi State University
The role of epigenetics in hypertension of children and adolescents: a systematic review
Year: 2025
Type: review
Language: en
Topic: Epigenetics and DNA Methylation
Authors and affiliations:
raw_author_name: Lilik Sukesi
raw_affiliation_strings: Department of Internal Medicine, Faculty of Medicine, Division of Nephrology and Hypertension, Universitas Padjadjaran/Hasan Sadikin General Hospital
Division of Nephrology and Hypertension, Department of Internal Medicine, Faculty of Medicine, Universitas Padjadjaran/Hasan Sadikin General Hospital, Bandung, Indonesia
raw_author_name: Yunia Sribudiani
raw_affiliation_strings: Department Biomedical Sciences, Faculty of Medicine, Division of Biochemistry and Molecular Biology, Universitas Padjadjaran/Hasan Sadikin General Hospital
Department Biomedical Sciences, Division of Biochemistry and Molecular Biology, Faculty of Medicine, Universitas Padjadjaran/Hasan Sadikin General Hospital, Bandung, Indonesia
raw_author_name: Steven Yulius Usman
raw_affiliation_strings: School of Medicine and Health Sciences, Faculty of Medicine Atma, Jaya Catholic University of Indonesia
School of Medicine and Health Sciences, Faculty of Medicine Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
raw_author_name: Eric Ricardo Yonatan
raw_affiliation_strings: School of Medicine and Health Sciences, Faculty of Medicine Atma, Jaya Catholic University of Indonesia
School of Medicine and Health Sciences, Faculty of Medicine Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
raw_author_name: Ahmedz Widiasta
raw_affiliation_strings: Child Health Department, Faculty of Medicine, Pediatric Nephrology Division, Universitas Padjadjaran/Hasan Sadikin General Hospital
Pediatric Nephrology Division, Child Health Department, Faculty of Medicine, Universitas Padjadjaran/Hasan Sadikin General Hospital, Bandung, Indonesia
raw_author_name: Noormarina Indraswari
raw_affiliation_strings: Department of Public Health, Division of Epidemiology, Faculty of Medicine, Universitas Padjadjaran/Hasan Sadikin General Hospital
Department of Public Health, Division of Epidemiology, Faculty of Medicine, Universitas Padjadjaran/Hasan Sadikin General Hospital, Bandung, Indonesia
raw_author_name: Ria Bandiara
raw_affiliation_strings: Department of Internal Medicine, Faculty of Medicine, Division of Nephrology and Hypertension, Universitas Padjadjaran/Hasan Sadikin General Hospital
Division of Nephrology and Hypertension, Department of Internal Medicine, Faculty of Medicine, Universitas Padjadjaran/Hasan Sadikin General Hospital, Bandung, Indonesia
raw_author_name: Nanny NM Soetedjo
raw_affiliation_strings: Department of Internal Medicine, Faculty of Medicine, Division of Endocrine and Metabolism, Universitas Padjadjaran/Hasan Sadikin General Hospital
Division of Endocrine and Metabolism, Department of Internal Medicine, Faculty of Medicine, Universitas Padjadjaran/Hasan Sadikin General Hospital, Bandung, Indonesia
Domestic privacy and the impact of geographical disparities: Spatial aspects of care work in post-Fordist capitalism—and in a ‘caring society’
Year: 2025
Type: article
Language: en
Topic: Italian Social Issues and Migration
Authors and affiliations:
raw_author_name: Bernhard Emunds
raw_affiliation_strings: Nell-Breuning-Institut, Philosophisch-Theologische Hochschule Sankt Georgen, Offenbacher Landstraße 224, 60599, Frankfurt a. M., Germany
Association of sucralose consumption with insulin response and sensitivity
Year: 2025
Type: article
Language: en
Topic: Biochemical Analysis and Sensing Techniques
Authors and affiliations:
raw_author_name: Shada Kodumayil
raw_affiliation_strings: Department of Medicine, Royal College of Surgeons in Ireland - Medical University of Bahrain (RCSI-MUB, Building No. 2441, Road 2835, Busaiteen- 228, Bahrain
raw_author_name: Ahmed Gebril
raw_affiliation_strings: Department of Medicine, Royal College of Surgeons in Ireland - Medical University of Bahrain (RCSI-MUB, Building No. 2441, Road 2835, Busaiteen- 228, Bahrain
raw_author_name: Soumya Nair
raw_affiliation_strings: Department of Medicine, Royal College of Surgeons in Ireland - Medical University of Bahrain (RCSI-MUB, Building No. 2441, Road 2835, Busaiteen- 228, Bahrain
raw_author_name: Insiya Saifudeen
raw_affiliation_strings: Department of Medicine, Royal College of Surgeons in Ireland - Medical University of Bahrain (RCSI-MUB, Building No. 2441, Road 2835, Busaiteen- 228, Bahrain
raw_author_name: Abrar Alhermi
raw_affiliation_strings: Department of Medicine, Royal College of Surgeons in Ireland - Medical University of Bahrain (RCSI-MUB, Building No. 2441, Road 2835, Busaiteen- 228, Bahrain
raw_author_name: Najla Shamsi
raw_affiliation_strings: Department of Medicine, Royal College of Surgeons in Ireland - Medical University of Bahrain (RCSI-MUB, Building No. 2441, Road 2835, Busaiteen- 228, Bahrain
raw_author_name: Naji Alamuddin
raw_affiliation_strings: Department of Medicine, Royal College of Surgeons in Ireland - Medical University of Bahrain (RCSI-MUB, Building No. 2441, Road 2835, Busaiteen- 228, Bahrain; Perelman School of Medicine, University of Pennsylvania, 3535 Market St., Suite 3021, Philadelphia, 19104, PA
raw_author_name: Nitya Kumar
raw_affiliation_strings: Department of Medicine, Royal College of Surgeons in Ireland - Medical University of Bahrain (RCSI-MUB, Building No. 2441, Road 2835, Busaiteen- 228, Bahrain. Electronic address: nkumar@rcsi-mub.com
Linear Prover IOPs in Log Star Rounds
Year: 2025
Type: book-chapter
Language: en
Topic: Cryptography and Data Security
Authors and affiliations:
raw_author_name: Noor Athamnah
raw_affiliation_strings: Technion, Taub Faculty of Computer Science, Haifa, Israel
raw_author_name: Noga Ron-Zewi
raw_affiliation_strings: University of Haifa, Haifa, Israel
raw_author_name: Ron D. Rothblum
raw_affiliation_strings: Succinct, San Francisco, USA
Cardiac risk assessment after noncardiac surgery: a historical cohort study on guideline adherence at a Canadian quaternary care centre
Year: 2025
Type: article
Language: en
Topic: Cardiac, Anesthesia and Surgical Outcomes
Authors and affiliations:
raw_author_name: Dean Noutsios
raw_affiliation_strings: Department of Medicine, McGill University Health Centre, 1001 Decarie Boulevard, Mail Drop Number: D05-2214, Suite D05-2212, Montreal, QC, H4A 3J1, Canada. constantinos.noutsios@mail.mcgill.ca
Internal Medicine Residency Training Program, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada. constantinos.noutsios@mail.mcgill.ca
Department of Medicine, McGill University Health Centre, 1001 Decarie Boulevard, Mail Drop Number: D05-2214, Suite D05-2212, Montreal, QC, H4A 3J1, Canada
Internal Medicine Residency Training Program, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada
raw_author_name: Amanda Marino
raw_affiliation_strings: Division of Respiratory Medicine, Department of Medicine, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada
raw_author_name: Matthew Anacleto-Dabarno
raw_affiliation_strings: Division of Rheumatology, Department of Medicine, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada
raw_author_name: Gabriele Baldini
raw_affiliation_strings: Department of Anesthesia, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada
Dipartimento di Anestesia e Rianimazione, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
raw_author_name: Amal Bessissow
raw_affiliation_strings: Division of General Internal Medicine, Department of Medicine, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada
Investigation of the impact of synthetic training data in the industrial application of terminal strip object detection
Year: 2025
Type: article
Language: en
Topic: Advanced Neural Network Applications
Authors and affiliations:
raw_author_name: Nico Baumgart
raw_affiliation_strings: Department of Electrical Engineering and Computer Science, OWL University of Applied Sciences and Arts, Campusallee 12, 32657, Lemgo, North Rhine-Westphalia, Germany
raw_author_name: Markus Lange-Hegermann
raw_affiliation_strings: Department of Electrical Engineering and Computer Science, OWL University of Applied Sciences and Arts, Campusallee 12, 32657, Lemgo, North Rhine-Westphalia, Germany
raw_author_name: Mike Mücke
raw_affiliation_strings: Chief Digital Office - Digital Innovations, Phoenix Contact GmbH & Co. KG, Flachsmarktstraße 8, 32825, Blomberg, North Rhine-Westphalia, Germany
Evaluation of cold water temperature and tank size impacts on a PVT-assisted heat pump system performance for hot water applications
Year: 2025
Type: article
Language: en
Topic: Solar Thermal and Photovoltaic Systems
Authors and affiliations:
raw_author_name: Tawanporn Junjorn
raw_affiliation_strings: Department of Mechanical Engineering, Faculty of Engineering and Graduate School, Chiang Mai University, 239 Huay Kaew Road, Muang District, Chiang Mai, 50200, Thailand
raw_author_name: Thoranis Deethayat
raw_affiliation_strings: Thermal System Research Laboratory, Department of Mechanical Engineering, Faculty of Engineering, Chiang Mai University, 239 Huay Kaew Road, Muang District, Chiang Mai, 50200, Thailand
raw_author_name: Attakorn Asanakham
raw_affiliation_strings: Thermal System Research Laboratory, Department of Mechanical Engineering, Faculty of Engineering, Chiang Mai University, 239 Huay Kaew Road, Muang District, Chiang Mai, 50200, Thailand
raw_author_name: Tanongkiat Kiatsiriroat
raw_affiliation_strings: Thermal System Research Laboratory, Department of Mechanical Engineering, Faculty of Engineering, Chiang Mai University, 239 Huay Kaew Road, Muang District, Chiang Mai, 50200, Thailand
A commensal bacterium secretes effector proteins to establish population heterogeneity in the gut
Year: 2025
Type: article
Language: en
Topic: Gut microbiota and health
Authors and affiliations:
raw_author_name: Anna P. Zagieboylo
raw_affiliation_strings: Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA; Microbial Sciences Institute, Yale University, West Haven, CT 06516, USA
raw_author_name: Ran Mo
raw_affiliation_strings: Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA; Microbial Sciences Institute, Yale University, West Haven, CT 06516, USA
raw_author_name: Bentley Lim
raw_affiliation_strings: Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA; Microbial Sciences Institute, Yale University, West Haven, CT 06516, USA
raw_author_name: Andrew L. Goodman
raw_affiliation_strings: Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA; Microbial Sciences Institute, Yale University, West Haven, CT 06516, USA. Electronic address: andrew.goodman@yale.edu
A review of natural and synthetic polymers in transdermal drug delivery as soluble microneedles
Year: 2025
Type: article
Language: en
Topic: Advancements in Transdermal Drug Delivery
Authors and affiliations:
raw_author_name: Mohanna Sharifi
raw_affiliation_strings: Department of Mechanical Engineering, Khajeh Nasir Toosi University of Technology, Tehran, Iran
raw_author_name: Mohamadreza Shahnazari
raw_affiliation_strings: Department of Mechanical Engineering, Khajeh Nasir Toosi University of Technology, Tehran, Iran
raw_author_name: Sina Razzaghi
raw_affiliation_strings: Department of Mechanical Engineering, Khajeh Nasir Toosi University of Technology, Tehran, Iran
raw_author_name: Kambiz Vafai
raw_affiliation_strings: Department of Mechanical Engineering, University of California, Riverside, CA, USA
Hydro-abrasion processes and modelling at hydraulic structures and steep bedrock rivers: 1. Hydro-abrasion and cover effect
Year: 2025
Type: article
Language: en
Topic: Hydrology and Sediment Transport Processes
Authors and affiliations:
raw_author_name: Dila Demiral
raw_affiliation_strings: Laboratory of Hydraulics, Hydrology and Glaciology, ETH Zurich, Zurich, Switzerland
TK Consult AG, Zurich, Switzerland
raw_author_name: Ismail Albayrak
raw_affiliation_strings: Laboratory of Hydraulics, Hydrology and Glaciology, ETH Zurich, Zurich, Switzerland
raw_author_name: Jens M. Turowski
raw_affiliation_strings: GFZ Helmholtz Centre for Geosciences, Telegrafenberg, Potsdam, Germany
raw_author_name: Robert M. Boes
raw_affiliation_strings: Laboratory of Hydraulics, Hydrology and Glaciology, ETH Zurich, Zurich, Switzerland
Stress-driven shifts in sensory desire and food appetite
Year: 2025
Type: article
Language: en
Topic: Olfactory and Sensory Function Studies
Authors and affiliations:
raw_author_name: Soo-Hyun Lee
raw_affiliation_strings: Department of Food and Nutrition, Seoul National University, Seoul 08826, Republic of Korea
raw_author_name: Jae-Hee Hong
raw_affiliation_strings: Department of Food and Nutrition, Seoul National University, Seoul 08826, Republic of Korea
Human Ecology Research Institute, Seoul National University, Seoul 08826, Republic of Korea
Successful treatment of durvalumab-induced psoriasis in an HBV-positive lung cancer patient with Risankizumab: A novel case report
Year: 2025
Type: article
Language: en
Topic: Psoriasis: Treatment and Pathogenesis
Authors and affiliations:
raw_author_name: Davide Fattore
raw_affiliation_strings: Section of Dermatology, Department of Clinical Medicine and Surgery, University of Naples Federico II, Via S. Pansini 5, Naples, Italy. Electronic address: davide.fattore@unina.it
raw_author_name: Francesca Futura Bernardi
raw_affiliation_strings: Coordination of the Regional Health System, General Directorate for Health Protection, Naples, Italy
raw_author_name: Gianluca Esposito
raw_affiliation_strings: Section of Dermatology, Department of Clinical Medicine and Surgery, University of Naples Federico II, Via S. Pansini 5, Naples, Italy
raw_author_name: Matteo Megna
raw_affiliation_strings: Section of Dermatology, Department of Clinical Medicine and Surgery, University of Naples Federico II, Via S. Pansini 5, Naples, Italy
Pre-oxidized low-rank coal-based porous carbon aerogels for high-energy-density supercapacitors
Year: 2025
Type: article
Language: en
Topic: Supercapacitor Materials and Fabrication
Authors and affiliations:
raw_author_name: Guangchao Hu
raw_affiliation_strings: State Key Laboratory of Advanced Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
raw_author_name: Junkai Chong
raw_affiliation_strings: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, PR China
raw_author_name: Fangqin Cheng
raw_affiliation_strings: Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan, 030006, PR China
raw_author_name: Xiangtao Huo
raw_affiliation_strings: National School of Elite Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
raw_author_name: Min Guo
raw_affiliation_strings: State Key Laboratory of Advanced Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
raw_author_name: Mei Zhang
raw_affiliation_strings: Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan, 030006, PR China
State Key Laboratory of Advanced Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
Grain refinement and mechanical properties enhancement of laser-arc hybrid welded 2219 aluminum alloy with TiC addition
Year: 2025
Type: article
Language: en
Topic: Advanced Welding Techniques Analysis
Authors and affiliations:
raw_author_name: Junwei Huang
raw_affiliation_strings: School of Materials Science and Engineering, Tianjin University, Tianjin 300350, PR China
Tianjin Key Laboratory of Advanced Joining Technology, Tianjin 300350, PR China
raw_author_name: Kangda Hao
raw_affiliation_strings: School of Materials Science and Engineering, Tianjin University, Tianjin 300350, PR China
Tianjin Key Laboratory of Advanced Joining Technology, Tianjin 300350, PR China
raw_author_name: Lianyong Xu
raw_affiliation_strings: School of Materials Science and Engineering, Tianjin University, Tianjin 300350, PR China
Tianjin Key Laboratory of Advanced Joining Technology, Tianjin 300350, PR China
raw_author_name: Yongdian Han
raw_affiliation_strings: School of Materials Science and Engineering, Tianjin University, Tianjin 300350, PR China
Tianjin Key Laboratory of Advanced Joining Technology, Tianjin 300350, PR China
raw_author_name: Lei Zhao
raw_affiliation_strings: School of Materials Science and Engineering, Tianjin University, Tianjin 300350, PR China
Tianjin Key Laboratory of Advanced Joining Technology, Tianjin 300350, PR China
raw_author_name: Wenjing Ren
raw_affiliation_strings: School of Materials Science and Engineering, Tianjin University, Tianjin 300350, PR China
Tianjin Key Laboratory of Advanced Joining Technology, Tianjin 300350, PR China
Research on Laser-EMAT measurement of preload in high-temperature alloy bolts for aerospace applications
Year: 2025
Type: article
Language: en
Topic: Ultrasonics and Acoustic Wave Propagation
Authors and affiliations:
raw_author_name: Yigang Cheng
raw_affiliation_strings: Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang 330063, China
raw_author_name: Wenze Shi
raw_affiliation_strings: Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang 330063, China
raw_author_name: Chao Lu
raw_affiliation_strings: Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang 330063, China
raw_author_name: Weiwei Chen
raw_affiliation_strings: School of Traffic & Transportation Engineering, Central South University, Changsha 410075, China
raw_author_name: Yujia Zeng
raw_affiliation_strings: Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang 330063, China
raw_author_name: Bo Hu
raw_affiliation_strings: Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang 330063, China
An archaeal transcription factor bridges prokaryotic and eukaryotic regulatory paradigms
Year: 2025
Type: article
Language: en
Topic: Bacterial Genetics and Biotechnology
Authors and affiliations:
raw_author_name: Fernando Medina Ferrer
raw_affiliation_strings: Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA. Electronic address: medinaferrer@berkeley.edu
raw_author_name: Dipti D. Nayak
raw_affiliation_strings: Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA; Department of Plant and Microbial Biology, University of California, Berkeley, CA, USA. Electronic address: dnayak@berkeley.edu
FeMn-NC based bimetallic nanozyme for ratiometric colorimetry and smartphone-assisted imaging detection of nitrite
Year: 2025
Type: article
Language: en
Topic: Advanced Nanomaterials in Catalysis
Authors and affiliations:
raw_author_name: Yuan Liao
raw_affiliation_strings: Key Laboratory of Water Security and Water Environment Protection in Plateau Intersection, Ministry of Education, College of Chemistry and Chemical Engineering, Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, PR China
raw_author_name: Xiaomin Li
raw_affiliation_strings: Key Laboratory of Water Security and Water Environment Protection in Plateau Intersection, Ministry of Education, College of Chemistry and Chemical Engineering, Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, PR China
raw_author_name: Shuyue Shi
raw_affiliation_strings: Key Laboratory of Water Security and Water Environment Protection in Plateau Intersection, Ministry of Education, College of Chemistry and Chemical Engineering, Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, PR China
raw_author_name: Libo Gao
raw_affiliation_strings: Key Laboratory of Water Security and Water Environment Protection in Plateau Intersection, Ministry of Education, College of Chemistry and Chemical Engineering, Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, PR China