Results 71 to 80 of about 972,015 (310)

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

The effect of latent Mycobacterium tuberculosis infection on ovarian reserve and pregnancy outcomes among infertile women in China

open access: yesBMC Infectious Diseases
Background Latent Mycobacterium tuberculosis infection (LTBI) is common among patients with infertility, yet its effects on ovarian reserve function and pregnancy outcomes in women undergoing assisted reproductive technology (ART) remain unclear.
Xiaobing Yang   +8 more
doaj   +1 more source

Machine Learning-Based Transcriptomic Diagnosis of Periodontitis

open access: yesInternational Dental Journal
Background: Periodontitis, a prevalent chronic inflammatory disease, remains a global health challenge with conventional diagnostic methods hindered by subjectivity and low sensitivity. This study aimed to develop a machine learning (ML)-based diagnostic
Ya’nan Cheng   +3 more
doaj   +1 more source

Finite Element Analysis of porously punched prosthetic short stem virtually designed for simulative uncemented Hip Arthroplasty

open access: yesBMC Musculoskeletal Disorders, 2017
Background There is no universal hip implant suitably fills all femoral types, whether prostheses of porous short-stem suitable for Hip Arthroplasty is to be measured scientifically. Methods Ten specimens of femurs scanned by CT were input onto Mimics to
Matthew Jian-Qiao Peng   +4 more
doaj   +1 more source

Uterine selection of human embryos at implantation [PDF]

open access: yes, 2014
Human embryos frequently harbor large-scale complex chromosomal errors that impede normal development. Affected embryos may fail to implant although many first breach the endometrial epithelium and embed in the decidualizing stroma before being rejected ...
A Mertzanidou   +44 more
core   +2 more sources

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Tacrolimus treatment in women with repeated implantation failures

open access: yesReproductive Medicine and Biology
Background Tacrolimus is an immunosuppressive drug that works as a calcineurin inhibitor to improve the reproductive outcomes for women who have experienced multiple implantation failures (RIF) and show elevated type 1 helper T (Th1)/Th2 cell ratios ...
Koji Nakagawa, Rikikazu Sugiyama
doaj   +1 more source

Implantable micromechanical parylene-based pressure sensors for unpowered intraocular pressure sensing [PDF]

open access: yes, 2007
This paper presents the first implantable, unpowered, parylene-based microelectromechanical system (MEMS) pressure sensor for intraocular pressure (IOP) sensing.
Agrawal, Rajat   +7 more
core   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

open access: yesAdvanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan   +9 more
wiley   +1 more source

Intrauterine infusion of autologous platelet-rich plasma modulates endometrial immune status and improves pregnancy outcomes in patients with persistent chronic endometritis

open access: yesFrontiers in Immunology
BackgroundChronic endometritis (CE) has been widely recognized as a potential cause of infertility, however, access to effective treatment is a formidable challenge due to the rudimentary understanding of the pathogenesis of persistent CE. Here, we aimed
Xian Chen   +18 more
doaj   +1 more source

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