Results 61 to 70 of about 5,554,949 (261)

Effects of speckle/pixel size ratio on temporal and spatial speckle-contrast analysis of dynamic scattering systems: Implications for measurements of blood-flow dynamics [PDF]

, 2013
Laser Speckle Contrast Imaging (LSCI) is an optical technique used to generate blood flow maps with high spatial and temporal resolution. It is well known that in LSCI, the speckle size must exceed the Nyquist criterion to maximize the speckle's pattern ...
NOEMI JASMIN SALAZAR HERMENEGILDO, RUBEN RAMOS GARCIA, Emilia Margarita Méndez Aguilar, ÁNGEL FUENTES GARCIA, JULIO CESAR RAMIREZ SAN JUAN   +4 more
core  

Marathon adaptation to spatial contrast: Saturation in sight [PDF]

, 1985
The contrast thresholds for detecting a 6.0 c/deg vertical sinusoidal test grating were tracked during and after 3 hr inspection of a high-contrast adapting grating of the same spatial frequency and orientation.
Magnussen, S., Greenlee, Mark W.
core   +1 more source

Abatacept for Prophylaxis of Acute and Chronic Graft‐Versus‐Host‐Disease in Children Undergoing Allogeneic Hematopoietic Stem Cell Transplantation—A Systematic Review and Meta‐Analysis of Cohort Studies

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Graft‐versus‐host disease (GvHD) remains one of the most significant complications of hematopoietic stem cell transplantation (HSCT). Abatacept, a selective T‐cell costimulation modulator, is a relatively novel prophylactic agent, though pediatric data remain limited.
Matthijs D. Kruizinga, Anne B. Verbeek, Caroline A. Lindemans, Emilie P. Buddingh   +3 more
wiley   +1 more source

Comparative Evaluation of the Optical Properties of CAD-CAM Zirconia Materials: An In Vitro Study

Medžiagotyra
The aim of this in vitro study was to compare the relative translucency parameter (RTP), contrast ratio (CR), and opalescence parameter (OP) of selected commercial translucent CAD-CAM zirconia materials.
Merve ÜNAL, Fatmanur ÇOLAK, Bengisu YILDIRIM, Zeynep OKUR   +3 more
doaj   +1 more source

Bone and Soft Tissue Neoplasms in Infants Versus Older Children: A Report From the Cancer in Young People in Canada Program

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background and Aims Infant bone and soft tissue neoplasms present distinct clinical challenges and lack large‐scale data to inform treatment decisions. This study aims to characterize bone and soft tissue neoplasms in infants in Canada and to compare their outcomes with those of older pediatric patients.
Samuel Sassine, Hallie Coltin, Maria Kondyli, Monia Marzouki, Nicolas Prud'homme, Nida Usmani, Rebecca J. Deyell, Lesleigh Abbott, Tony H. Truong, Sapna Oberoi, Ketan Kulkarni, Josée Brossard, Lynette Bowes, Paul Gibson, Sarah McKillop, Roona Sinha, Lillian Sung, Catherine Vezina, Laura Wheaton, Alexandra P. Zorzi, Marie‐Claude Pelland‐Marcotte, Thai Hoa Tran   +21 more
wiley   +1 more source

Complete chiroptical signal detection using weak measurement with intensity-contrast-ratio pointers

APL Photonics, 2023
Chiroptical signals, including optical rotation (OR) and circular dichroism (CD), are widely utilized as potent probes for investigating the structure and properties of chiral molecules.
Yunhan Wang, Shaojie Yang, Qianli Zhang, Yanyu Chen, Xiaolong Hu, Hong Zhang, Zhiyou Zhang   +6 more
doaj   +1 more source

Impact of Initial Treatment Setting on Survival in Relapsed Pediatric and AYA Bone Sarcomas: A Secondary Analysis of a Prospective Clinical Trial

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Outcomes in relapsed or refractory pediatric and AYA bone sarcomas remain poor, and the impact of early referral to specialized sarcoma centers on survival is unclear. Early centralization of care may improve local and systemic treatment quality, but evidence in this population is limited.
Justyna Antoniuk‐Majchrzak, Katarzyna Bilska, Tomasz Koziński, Jadwiga Węcławek‐Tompol, Dorota Sega‐Pondel, Radosław Chaber, Wanda Badowska, Katarzyna Rosłan, Hanna Koseła‐Paterczyk, Anna Raciborska   +9 more
wiley   +1 more source

Investigation of speckle contrast ratio in optical coherence tomography

, 2006
The speckle contrast ratio in optical coherence tomography images has been shown to depend on scatterer density when the detected signal is dominated by single backscattering.
Adie, S.G., Sampson, David, Hillman, T.R., Steven G. Adie, Timothy R. Hillman, David D. Sampson   +5 more
core   +2 more sources

A Compact and Fast Resonant Cavity-Based Encoder in Photonic Crystal Platform

Crystals
A novel 4-to-2 photonic crystal encoder is proposed by modulating the intensity of four input optical signals, and four distinct output states are achieved.
Mohammad Soroosh, Faris K. AL-Shammri, Mohammad Javad Maleki, Venkatachalam Rajarajan Balaji, Ehsan Adibnia   +4 more
doaj   +1 more source

The Impact of Tenapanor on Body Composition and Blood Pressure in Peritoneal Dialysis Patients: A Pilot Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Instruction Tenapanor potentially affects fluid volume and blood pressure. This study explored its effects on these parameters in patients undergoing peritoneal dialysis (PD). Methods We conducted a single‐arm, prospective observational study that enrolled 10 patients on PD with hyperphosphatemia who were newly initiated on tenapanor.
Shun Yoshida, Kengo Asahina, Keiichi Osano, Natsumi Saegusa, Kohei Yamamura, Kie Ohkoshi, Miho Shikata, Toshihisa Ishii, Makiko Konishi, Kazuya Takahashi, Kohei Uchimura, Ayumu Nakashima   +11 more
wiley   +1 more source