Results 161 to 170 of about 2,162,249 (355)

Формообразование винтовых зубчатых колес в пространственном станочном зацеплении [PDF]

, 2010
У статті розглянуті питання формоутворення гвинтових зубчастих коліс в просторовому верстатному зачепленні. При цьому змодельований рух ріжучого інструменту перпендикулярно осі обертання зуборізного довбяка.In article questions form creations screw tooth
Витренко, А. В., Витренко, В. А., Кашура, А. Л., Кириченко, И. А., Кузьменко, Н. Н.   +4 more
core  

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

The Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source

Increased TGF-β1 level after cocoa administration during orthodontics tooth movement in Cavia cobaya

Dental Journal
Background: Orthodontic tooth movement (OTM) is a process of tooth movement in the alveolar socket through a bone remodeling process. Cocoa contains caffeine as a bioactive component.
Annisa Nurul Fikri, Cendrawasih Andusyana Farmasyanti, Pinandi Sri Pudyani   +2 more
doaj   +1 more source

Oldest well‐preserved euprimate petrosal, from the early Eocene of India (Vastan Lignite Mine, Gujarat)

The Anatomical Record, EarlyView.
Abstract An exquisitely preserved, isolated partial petrosal with associated fragmentary stapes is described from the Vastan Lignite Mine (Gujarat, India), dated to the early Eocene (~54.5 Ma). Several anatomical traits (e.g., large petrosal plate; posterolateral entry of the internal carotid artery to the tympanic cavity; bony tubes surrounding the ...
Mary T. Silcox, Kenneth D. Rose, Rachel H. Dunn, Kishor Kumar, Rajendra S. Rana, Ashok Sahni, Lachham Singh, Thierry Smith, Jordan W. Crowell   +8 more
wiley   +1 more source

Making it explicit – Sustained shared thinking dialogue as a way to explore children's perspectives on quality in German early childhood education and care

British Educational Research Journal, EarlyView.
Abstract To negotiate quality in early childhood education and care, we must ask from different perspectives what constitutes a good centre for children. The children themselves have only recently been identified as a resource to contribute to that discussion.
Katrin Macha, Frauke Hildebrandt, Caroline Wronski, Jan Lonnemann, Mathias Urban   +4 more
wiley   +1 more source

Neuronal differentiation and tissue engineering strategies for central neurous system injury repair

BMEMat, EarlyView.
This review outlines tissue engineering advances for central nervous system (CNS) injury treatment, focusing on three core components: seed cells, inductive factors, and scaffold materials, with evaluation of their respective strengths and limitations. Tissue engineering for CNS injury repair.
Zhuqing Xia, Jinghui Zhang, Na Ren, Shuping Wang, Congcong Zhang, Nik Ahmad Nizam Nik Malek, Wan Hairul Anuar Kamaruddin, Chao Liu, Chunhui Sun, Jingang Wang   +9 more
wiley   +1 more source

Alcohol Induced Osteopenia Can Cause Accelerated Orthodontic Tooth Movement in Male Wistar Rats

Journal of Islamic Dental Association of Iran, 2016
Background and Aim: Considering the effect of alcohol on bones, consuming alcohol may have some consequences on orthodontic tooth movement. The present study was aimed to evaluate the effect of alcohol consumption on bone density and orthodontic tooth ...
Mohammad Sadegh Ahmad Akhoundi, Amirhossein Mirhashemi, Sedigheh Sheikhzadeh, Elahe Ansari, Yasaman Kheirandish, Nafiseh Momeni, Mohmmad Javad Khaarazifard   +6 more
doaj  

Composition, Phase Structure, and Corrosion of Nickel-Free and Nickel-Containing Stainless Steel Orthodontic Wires [PDF]

, 2014
Stainless steel wires have long been used in orthodontics. The austenitic stainless steel used in orthodontics contains approximately 18 wt% chromium and 8 wt% nickel. Nickel improves the corrosion resistance and helps maintain the austenite structure of
Rakalla, Amrita
core   +1 more source

Targeting neutrophil extracellular traps in metabolic and immune niche: Nanomaterials for diabetes tissue regeneration

BMEMat, EarlyView.
The effects of NETs on regeneration of various diabetic tissues, and strategies targeting NETs for diabetes tissue regeneration. In the diabetic environment, NETs undergo complex metabolic and immune reprogramming, leading to dynamic changes in antibacterial and proinflammatory functions, and affecting regeneration of multiple systemic tissues.
Xinyi Jiang, Muxin Yue, Kai Mao, Boon Chin Heng, Noor Azlin Yahya, Yunsong Liu, Zheng Li   +6 more
wiley   +1 more source

Atomically precise metal cluster enzymes for pathological tissue regeneration

BMEMat, EarlyView.
Schematic illustration of atomically precise metal cluster enzymes (MCEs) for pathological tissue regeneration. Atomically precise MCEs can modulate biological processes, such as attenuation of inflammatory responses, eradication of bacterial pathogens, regulation of angiogenesis, and promotion of cell development.
Ziqiang Xiong, Zhifeng Shi, Mengqing Li, Jien Han, Haoyan Chen, Maofei Ran, Shaojian Zhong, Limin Ma, Chengyun Ning, Youzhun Fan, Zhenghua Tang, Peng Yu   +11 more
wiley   +1 more source