نتایج جستجو برای: ddh

تعداد نتایج: 815  

Journal: :Acta orthopaedica Belgica 2012
Nikoletta Panagiotopoulou Khaldoun Bitar William J Hart

Although developmental dysplasia of the hip (DDH) is a relatively common disorder, its aetiology remains elusive. The authors undertook a systematic review to determine whether there is an association between DDH and vaginal or caesarean delivery for singleton breech infants. The review focussed on cohort studies which provided risk estimates for DDH in breech-presenting infants, as a function ...

Journal: :International journal of clinical and experimental medicine 2015
Xiangxin Zhang Qingxia Meng Ruixue Ma Guangxiang Chen Liang Cheng Jun Shen

BACKGROUND Mild developmental dysplasia of hip (DDH) causes high morbidity of osteoarthritis (OA) on adult. It is thought that change of collagen and proteoglycans in cartilage may be the direct reasons for osteoarthritis. OBJECTIVE To detect the changes of the expressions of type II collagen of acetabular cartilage in early DDH and to investigate the relevance between type II collagen and th...

Journal: :ACS Catalysis 2022

The oxygen-free alkane direct dehydrogenation (DDH) is a greener, safer, and more selective alternative to oxygen co-fed conditions produce olefins. Carbon-based catalysts have significantly boosted this branch of catalysis by providing cheaper, robust, durable, environmentally friendly single-phase materials as valuable substitutes variety alkaline- or alkaline earth-promoted transition metal ...

Journal: :British Journal of Surgery 2021

Abstract Aim Early detection of DDH is associated with the increased success non-surgical treatment. Therefore, Cardiff and Vale Health Board (CAVUHB) implemented an extended screening program for Developmental dysplasia Hip (DDH) to improve neonatal public health within population. Method A 4-year prospective case-control study all patients born between 01/01/2016-31/12/2019 (n = 21843) who un...

Journal: :International Journal of Orthopaedics Sciences 2020

2012
Brett Hemenway Rafail Ostrovsky

Lossy Trapdoor Functions (LTFs) were introduced by Peikert and Waters in STOC ’08 and since then have found many applications and have proven to be an extremely useful and versatile cryptographic primitive. Lossy trapdoor functions were used to build the first injective trapdoor functions based on DDH, the first IND-CCA cryptosystems based on lattice assumptions, and they are known to imply det...

Journal: :International journal of networking and computing 2021

From the birth of blockchain technology, multisignatures attract much attention as a tool for handling transactions. Concerning application to blockchain, with public-key aggregation, which can compress public keys signers single key, is preferable standard multisignature because and signature used in transaction are stored verify later. Several schemes key aggregation proposed, however, there ...

Journal: :Acta Paediatrica 2021

Aim To establish the positive predictive value (PPV) of clinical hip examinations performed by referrers in Danish screening programme for Developmental Dysplasia Hip (DDH) utilising three definitions true DDH diagnosis. Methods We retrospectively identified 290 children (169 female) referred during a 4-year period to orthopaedic outpatient clinic at our institution with examination. Positive w...

2002
Yevgeniy Dodis

We give the £rst simple and ef£cient construction of veri£able random functions (VRFs). VRFs, introduced by Micali et al. [MRV99], combine the properties of regular pseudorandom functions (PRFs) [GGM86] (i.e., indistinguishability from a random function) and digital signatures [GMR88] (i.e., one can provide an unforgeable proof that the VRF value is correctly computed). The ef£ciency of our VRF...

Journal: :Indian Journal of Environment Engineering (IJEE) 2022

The physicochemical parameters of groundwater at Auchi and South-Ibie were investigated to determine underground water quality in this environment. Water sampled locations categorized as Iyekhei (Iyekhei), Poly (Auchi PW), Hostel PH), Double Delight (DDH); are Levis Gas Plant (LGP), Pastoral Centre (PC), Global Castle Sawmill Road (GCHS), Arsenal and, Lagos Street (AHLS). A total number 80 samp...

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