Results 41 to 50 of about 11,816,666 (309)

Asymmetric autocatalysis: Novel structures, novel mechanism? [PDF]

Proceedings of the National Academy of Sciences, 2004
The amplifying asymmetric autocatalysis discovered by Soai and coworkers in 1995 does not fit easily into the extensively investigated framework of organozinc alkylation of aldehydes. In that case the catalyst is a monomeric Zn chelate that functions as both Lewis acid and Lewis base, permitting the simultaneous coordination of both dialkylzinc reagent
Ilya D, Gridnev, John M, Brown
openaire   +2 more sources

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Worldwide Late Pleistocene and Early Holocene population declines in extant megafauna are associated with Homo sapiens expansion rather than climate change

Nature Communications, 2023
The worldwide extinction of megafauna during the Late Pleistocene and Early Holocene is evident from the fossil record, with dominant theories suggesting a climate, human or combined impact cause.
Juraj Bergman, Rasmus Ø. Pedersen, Erick J. Lundgren, Rhys T. Lemoine, Sophie Monsarrat, Elena A. Pearce, Mikkel H. Schierup, Jens-Christian Svenning   +7 more
doaj   +1 more source

Survival Outcomes and Complications Among Canadian Children With Retinoblastoma: A Population‐Based Report From CYP‐C

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Retinoblastoma (RB) is the most common pediatric ocular cancer, yet population‐based data on survival and risk factors remain limited. This study aimed to describe survival in a large national RB cohort and identify predictors of death and complications.
Samuel Sassine, Ofélie Trudeau‐Ferrin, Caroline Laverdière, Patrick Hamel, Rosanne Superstein, Bénédicte Koukoui, Carole Provost, Paul C. Nathan, Vijay Ramaswamy, Furqan Shaikh, Brenda Gallie, Ashwin Mallipatna, Stephanie Kletke, Helen Dimaras, Hallie Coltin   +14 more
wiley   +1 more source

Graph-Based Locality-Sensitive Circuit Sketch Recognizer

IEEE Access, 2020
The understanding of circuit diagram is very important for the study of electrical engineering. Existing circuit diagram simulation tools are mostly based on GUI interface and rely on users to click or drag icons with mouse, which requires them to be ...
Songhua Liu, Linfeng Lee, Fukang Jiu, Guihuan Feng   +3 more
doaj   +1 more source

Constructing LDPC Codes with Any Desired Girth

Sensors, 2021
In wireless sensor networks, the reliability of communication can be greatly improved by applying low-density parity-check (LDPC) codes. Algorithms based on progressive-edge-growth (PEG) pattern and quasi-cyclic (QC) pattern are the mainstream approaches
Chaohui Gao, Sen Liu, Dong Jiang, Lijun Chen   +3 more
doaj   +1 more source

Laboratory Detection of Novel Corona Virus 2019 Using Polymerase Chain Reaction [PDF]

, 2020
Since mid-December 2019, several cases of a pneumonia like disease (with symptoms including fever, difficulty in breathing, cough and invasive lesions on both lungs) of unknown cause have emerged in the central Chinese city of Wuhan.
Chudhary, S. A. (Shafiq), Imtiaz, S. (Shahid), Iqbal, N. (Nedal)   +2 more
core  

Personalized Selumetinib Dosing in Pediatric Neurofibromatosis Type 1: Insights From a Pilot Therapeutic Drug Monitoring Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objective To evaluate selumetinib exposure using therapeutic drug monitoring (TDM) in pediatric patients with neurofibromatosis type 1 (NF1) and plexiform neurofibromas (PN), assess interpatient pharmacokinetic variability, and explore the relationship between drug exposure, clinical response, and adverse effects.
Janka Kovács, Zoltán Köllő, Balázs Gellért Karvaly, Mahmoud Obeidat, Rita Nagy, Péter Hegyi, Brigitta Teutsch, Eszter Tuboly, Miklós Garami   +8 more
wiley   +1 more source

Novel Cauchy-horizon instability [PDF]

, 2005
The evolution of weak discontinuity is investigated on horizons in the $n$-dimensional static solutions in the Einstein-Maxwell-scalar-$\Lambda$ system, including the Reissner-Nordstr\"om-(anti) de Sitter black hole. The analysis is essentially local and
A. Ori, B. Muchotrzeb-Czerny, C. M. Chambers, D. Ida, Hideki Maeda, P. Kraus, P. R. Brady, R. Penrose, R. Penrose, S. Chandrasekhar, S. Kato, S. Kato, S. W. Hawking, T. Hanawa, T. Harada, Takashi Torii, Tomohiro Harada   +16 more
core   +1 more source

A multi-fin normally-off β-Ga2O3 vertical transistor with a breakdown voltage exceeding 10 kV

Applied Physics Express
We demonstrated a multi-fin normally-off β -Ga _2 O _3 vertical transistor with a breakdown voltage exceeding 10 kV, a specific on-resistance of 289 mΩ·cm ^2 , and a power figure-of-merit of 0.35 GW cm ^−2 .
Daiki Wakimoto, Chia-Hung Lin, Kentaro Ema, Yuki Ueda, Hironobu Miyamoto, Kohei Sasaki, Akito Kuramata   +6 more
doaj   +1 more source