Results 31 to 40 of about 3,790,372 (269)

Optimizing the Focusing Performance of Diffractive Optical Elements by Integrated Structure Techniques and Laser Lithography

open access: yesPhotonics
Diffractive optical elements (DOEs) offer significant advantages over conventional refractive optics, particularly in non-visible spectral regions such as ultraviolet, gamma rays, and X-rays, where material limitations restrict traditional optical ...
Hieu Tran Doan Trung   +2 more
doaj   +1 more source

Relation of myofibril fragmentation to textural and chemical parameters of aged pork Longissimus dorsi

open access: yesActa Agriculturae Slovenica, 2007
The relation of myofibrilar fragmentation (length of myofibrilar fragments, myofibrilar fragmentation index) to textural (Warner-Bratzler share force) and chemical parameters (non-protein nitrogen changes) of pork Longisimus dorsi muscles (acquired 24 h ...
Dejan DOŠLER   +3 more
doaj   +1 more source

The Impact of the COVID‐19 Pandemic on Childhood Cancer Survival: A Population‐Based Assessment of Survival Patterns Between 2015 and 2023 in Germany

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Numerous international studies have reported declines in new cancer diagnoses, delayed diagnoses and disruptions in cancer treatment following the implementation of COVID‐19 pandemic public health measures, raising concerns that these effects may ultimately contribute to increased cancer mortality.
Friederike Erdmann   +8 more
wiley   +1 more source

Distinct modes of telomere synthesis and extension contribute to Alternative Lengthening of Telomeres

open access: yesiScience
Summary: Alternative lengthening of telomeres (ALT) is a homology-directed repair mechanism that becomes activated in a subset of cancers to maintain telomere length.
Robert Lu   +5 more
doaj   +1 more source

Biphasic Clinical Course of Pediatric Cytomegalovirus‐Associated Immune Thrombocytopenia: Early Poor Treatment Response but Favorable Long‐Term Outcomes

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cytomegalovirus (CMV) is a recognized trigger of immune thrombocytopenia (ITP); however, its incidence and impact on disease course in children remain controversial. Therefore, we aimed to characterize the clinical course of pediatric patients with CMV‐associated ITP.
Oded Gilad   +9 more
wiley   +1 more source

ZNF827 is a single-stranded DNA binding protein that regulates the ATR-CHK1 DNA damage response pathway

open access: yesNature Communications
The ATR-CHK1 DNA damage response pathway becomes activated by the exposure of RPA-coated single-stranded DNA (ssDNA) that forms as an intermediate during DNA damage and repair, and as a part of the replication stress response. Here, we identify ZNF827 as
Sile F. Yang   +13 more
doaj   +1 more source

Plane-Parallel Laminar Flow of Viscous Fluid in the Transition Zone of the Inlet Section

open access: yesJournal of Architectural and Engineering Research, 2023
A study was conducted to analyze how hydrodynamic parameters change in the entrance region of plane-parallel flow under stationary flow conditions, with an initial arbitrary distribution of velocities in the entrance section.
Arestak Sarukhanyan   +2 more
doaj   +1 more source

Chemotherapy for Spinal Cord Intramedullary Pediatric Low‐Grade Glioma—A Systematic Literature Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric intramedullary low‐grade gliomas (PIMLGGs) are rare neoplasms that present unique clinical and management challenges. Although surgery remains the primary tool for tissue diagnosis and decompression, complete gross‐total resection is frequently unfeasible due to the infiltrative nature of these lesions.
Olga M. Sergeenko   +5 more
wiley   +1 more source

Effect of dry period length on reproduction, health and milk production in the subsequent lactation of Holstein cows [PDF]

open access: yesJournal of Veterinary Medical Research, 2009
A retrospective study was employed to investigate the effect of dry period length on reproduction, incidence of reproductive and metabolic disorders and milk production in Holstein cows belonging to a commercial dairy.
M. M. Hussein
doaj   +1 more source

The Length of the Sarissa

open access: yesAntichthon, 2012
AbstractIn an age when size really did matter, the length of the long pike (sarissa) employed by armies of the Hellenistic Age (c. 350-168 BC) was consistently altered by successive armies trying to gain an advantage over their opponents. These alterations are well attested in the ancient sources — albeit in an ancient Greek unit of measure.
openaire   +2 more sources

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