نتایج جستجو برای: bmac

تعداد نتایج: 105  

Journal: :Tissue engineering. Part C, Methods 2010
Sebastian Sauerbier Andres Stricker Jens Kuschnierz Felicia Bühler Toshiyuki Oshima Samuel Porfirio Xavier Rainer Schmelzeisen Ralf Gutwald

OBJECTIVE To compare new bone formation in maxillary sinus augmentation procedures using biomaterial associated with mesenchymal stem cells (MSCs) separated by two different isolation methods. BACKGROUND In regenerative medicine open cell concentration systems are only allowed for clinical application under good manufacturing practice conditions. METHODS Mononuclear cells, including MSCs, w...

2011
C. Umamaheswari

Energy efficiency is a central challenge in sensor networks, and the radio is a major contributor to overall energy node consumption. These Wireless Sensor Networks have severe resource constrains and energy conservation is very essential. The aim of this project is to reduce the energy consumption in wireless sensor networks. This paper proposes adaptive radio low-power sleep modes based on cu...

Journal: :Indian Journal of Orthopaedics Surgery 2023

As osteochondral defects heal spontaneously or as a result of marrow stimulation, bone clot develops inside the cartilage defect. In clot-filled defect, MSCs from subchondral move in, develop into chondrocytes and osteoblasts, eventually create repair tissue. It is believed that applying aspirate (BMA) to stimulation will improve since it may serve source growth factors promote both chondrogene...

Journal: :Journal of Regenerative Biology and Medicine 2023

Osteoarthritis (OA) of the knee joint, most common form arthritis, is gradual degeneration joint cartilage. A progression OA characterized by degradation and articular cartilage with subchondral bone remodeling, osteophyte formation inflammation leading to bone-on-bone contact causing pain, stiffness, functional difficulties disability. affects patient’s quality life creates a significant finan...

2005
Raja Jurdak Pierre Baldi Cristina Videira Lopes

Energy efficiency is a central issue for all wireless sensor network applications. Idle listening on the wireless channel constitutes a large portion of overall energy consumption in sensor networks. The need to reduce idle listening energy consumption has led recently to the design of BMAC [1], a MAC protocol for sensor networks which provides 8 low power listening modes and 8 corresponding tr...

2007
Khalil Fakih Jean-Francois Diouris Guillaume Andrieux

In this paper we evaluate the channel load on the total ad hoc network performance when using the beamformed MAC protocol: BMAC [1]. Carefully exploitation of the multipath channel using smart antennas can lead to improve the capacity and the quality in MANET (Mobile Adhoc NETwork). In BMAC the channel-acquisition sub algorithm, maintains an estimated channel version to be used by the beamformi...

2013
Ernesto Ibarra Angelos Antonopoulos Elli Kartsakli Christos Verikoukis

In this paper, we propose a hybrid polling Medium Access Control (MAC) protocol with Human Energy Harvesting capabilities, called HEH-BMAC, designed for Wireless Body Area Networks (WBANs). The proposed protocol uses a dynamic schedule algorithm to combine User Identification polling (ID) and Probabilistic Contention (PC) random access, adapting the network operation to the random, time-varying...

Journal: :Frontiers in Earth Science 2023

The Bronze Age in Central Asia was dominated by the Andronovo Culture and Bactria-Margiana Archaeological Complex (BMAC). Both cultural entities produced bronze, however, extent of bronze production use varied considerably space time across their territories. introduction spread metallurgy region is commonly associated with Culture, but comparatively little known about copper tin sources that w...

2011
Alberto Gobbi Georgios Karnatzikos Celeste Scotti Vivek Mahajan Laura Mazzucco Brunella Grigolo

OBJECTIVE The purpose of our study was to determine the effectiveness of cartilage repair utilizing 1-step surgery with bone marrow aspirate concentrate (BMAC) and a collagen I/III matrix (Chondro-Gide, Geistlich, Wolhusen, Switzerland). MATERIALS AND METHODS We prospectively followed up for 2 years 15 patients (mean age, 48 years) who were operated for grade IV cartilage lesions of the knee....

Journal: :Arthroscopy 2021

To comparatively examine clinical outcomes (i.e. patient-reported and tendon healing) after arthroscopic rotator cuff repair (ARCR) with without augmentation bone marrow aspirate concentrate (BMAC). Patients aged 18-70 undergoing ARCR for a full-thickness tear of the supraspinatus were enrolled randomized in one two groups. The treatment group received BMAC harvested from iliac crest injected a...

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