Results 1 to 10 of about 26,907 (263)

A novel digital tool to guide provision of near vision glasses for presbyopia correction in the community [PDF]

Frontiers in Ophthalmology
PurposeTo develop and validate a digital tool to support non-eye specialists, such as community health workers (CHWs), to provide appropriate near vision glasses to correct presbyopia, in line with the WHO SPECS 2030 initiative.MethodsEpidemiological ...
Marzieh Katibeh, Shalinder Sabherwal, Shalinder Sabherwal, Mohd Javed, Elanor Watts, Elanor Watts, Sergio Latorre-Arteaga, Sergio Latorre-Arteaga, Nigel M. Bolster, Nigel M. Bolster, Darren Coverley, Alice Pintus, Vince Hewitt, Nam Thaker, Andrew Bastawrous, Andrew Bastawrous   +15 more
doaj   +2 more sources

Improving equity, efficiency and adherence to referral in Pakistan's eye health programmes: Pre- and post-pandemic onset

Frontiers in Public Health, 2022
BackgroundOver one billion people worldwide live with avoidable blindness or vision impairment. Eye Health Programmes tackle this by providing screening, primary eye care, refractive correction, and referral to hospital eye services.
Asad Aslam Khan, Asad Aslam Khan, Khalid Iqbal Talpur, Zahid Awan, Sergio Latorre Arteaga, Sergio Latorre Arteaga, Nigel M. Bolster, Nigel M. Bolster, Marzieh Katibeh, Elanor Watts, Elanor Watts, Andrew Bastawrous, Andrew Bastawrous   +12 more
doaj   +1 more source

Retention force of overdenture retained with telescopic crowns: A comparison of polyether ether ketone and zirconia ceramic telescopic crowns [PDF]

Srpski Arhiv za Celokupno Lekarstvo, 2020
Introduction/Objective. Recently, new materials for double crowns have been introduced, such as zirconia and polyether ether ketone (PEEK). However, some characteristics of these materials, such as retentive force and duration of “settling in phase ...
Milić-Lemić Aleksandra, Sredojević Stefan, Radović Katarina, Stamenković Dejan, Miličić Biljana, Popovac Aleksandra, Stančić Ivica   +6 more
doaj   +1 more source

Polimer Kompozit ve Çelik Diske Karşı Cam Elyaf Takviyeli Poli-Eter-Eter-Keton (PEEK) Kompozitin Aşınma Özellikleri

Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi, 2022
Bu çalışmada, %30 cam elyaf (CE) katkılı poli-eter-eter-keton (PEEK) polimerinin termoset poliester kompozit ve AISI 316L paslanmaz çelik diske karşı kuru ortam şartları altında sürtünme ve aşınma özellikleri incelenmiştir. Sürtünme ve aşınma çalışmaları
Veysel Furkan Ünal, Hüseyin Ünal, Salih Hakan Yetgin   +2 more
doaj   +1 more source

Improvement studies for equitable and evidence-based innovation: an overview of the ‘IM-SEEN’ model

International Journal for Equity in Health, 2023
Background Health inequalities are ubiquitous, and as countries seek to expand service coverage, they are at risk of exacerbating existing inequalities unless they adopt equity-focused approaches to service delivery.
Luke N. Allen, Oathokwa Nkomazana, Sailesh Kumar Mishra, Michael Gichangi, David Macleod, Jacqueline Ramke, Nigel Bolster, Ana Patricia Marques, Hilary Rono, Matthew Burton, Min Kim, Bakgaki Ratshaa, Sarah Karanja, Ari Ho-Foster, Andrew Bastawrous   +14 more
doaj   +1 more source

EXPERIMENTAL SETTING FOR TESTING THE BOND STRENGTH BETWEEN METAL ALLOY AND PEEK [PDF]

Journal of IMAB, 2021
Purpose: The aim of the article is to present an experimental setting for bending strength testing of metal specimens covered with PEEK. Materials and methods: Three groups of metal specimens made of cobalt chromium alloy are produced using the lost wax
Zhivko Georgiev, Svetlin Alexandrov, Zlatina Tomova   +2 more
doaj   +1 more source

Lithium disilicate and PEEK implant-retained single crowns - a randomized, prospective clinical study [PDF]

Srpski Arhiv za Celokupno Lekarstvo, 2022
Introduction/Objective. Comparing two materials under the same conditions is the best way to define differences between them. Ceramic-reinforced polyether-etherketone (PEEK) is a polymer that has many possible uses in dentistry as already well-known ...
Joksimović Ena, Šćepanović Miodrag, Staletović Danijela, Pejić-Duspara Mirjana, Bijelić Borivoj, Đorđević Vladan   +5 more
doaj   +1 more source

Application of Collar Seals for Bearings in the Lunar Exploration Rover

Tribology Online, 2020
A lot of exploration missions have been planned for the moon, and lunar activity is likely to increase. The moon’s surface is covered by a great deal of dust, called regolith, and these particles can seriously damage mechanical components.
Koji Matsumoto, Keiichi Yanagase, Satoshi Takada, Takashi Yokoyama, Shogo Kusabe, Nao Tsujimura, Tomoya Nakamura   +6 more
doaj   +1 more source

Study Of the compression behaviours of 3D-printed PEEK/CFR-PEEK sandwich composite structures

Virtual and Physical Prototyping, 2022
Single-component materials and homogeneous structures cannot adequately meet the various demands of ideal bone implants. Therefore, the use of three dimensional (3D) printing to form multi-materials and composites has received considerable attention ...
Houfeng Jiang, Patiguli Aihemaiti, Wurikaixi Aiyiti, Ayiguli Kasimu   +3 more
doaj   +1 more source

Strategies to improve bioactive and antibacterial properties of polyetheretherketone (PEEK) for use as orthopedic implants

Materials Today Bio, 2022
Polyetheretherketone (PEEK) has gradually become the mainstream material for preparing orthopedic implants due to its similar elastic modulus to human bone, high strength, excellent wear resistance, radiolucency, and biocompatibility.
Zhi Zheng, Pengjia Liu, Xingmin Zhang, Jingguo xin, Yongjie wang, Xiaosong Zou, Xiaohan Mei, Shuling Zhang, Shaokun Zhang   +8 more
doaj   +1 more source