Results 51 to 60 of about 1,207,935 (298)

A "Periodic Table" for Supersymmetric M-Theory Compactifications

open access: yes, 2002
We develop a systematic method for classifying supersymmetric orbifold compactifications of M-theory. By restricting our attention to abelian orbifolds with low order, in the special cases where elements do not include coordinate shifts, we construct a ...
Acharya   +33 more
core   +1 more source

Changes in Body Composition in Children and Young People Undergoing Treatment for Acute Lymphoblastic Leukemia: A Systematic Review and Meta‐Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Ongoing evidence indicates increased risk of sarcopenic obesity among children and young people (CYP) with acute lymphoblastic leukemia (ALL), often beginning early in treatment, persisting into survivorship. This review evaluates current literature on body composition in CYP with ALL during and after treatment.
Lina A. Zahed   +5 more
wiley   +1 more source

90 Природни елементи од кои е изградено сè. Колку ги има? Дали тоа е доволно?

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2018
По повод прогласувањето на 2019 година за годината на периодниот систем, на состанокот на EuChemS одржан во Берн 2018 година, проф. д-р Дејвид Кол-Хамилтон предложи да се изработи периоден систем што би содржел информации за застапеноста на елементите во
Катарина Јосифовска
doaj  

Setting the Table: A Retrospective and Prospective of the Periodic Table of the Elements.

open access: yesSubstantia, 2019
The major theme of this special issue volume is “The History of The Periodic Table, the Discovery of the Elements, and of the Materials that Changed the Course of History: The Development of the Periodic System and Its Consequences.” After a brief ...
Mary Virginia Orna, Marco Fontani
doaj   +1 more source

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser   +6 more
wiley   +1 more source

It\u27s Elementary [PDF]

open access: yes, 2010
The periodic table provides the backdrop for the thirty examples presented below. Each word in the list is the result of replacing a single letter in the name of a chemical element with another and permuting the ensuing ...
Kahan, Steve
core   +1 more source

Prognostic Impact of Treatment Modalities, Including Targeted Compartmental Radio‐Immunotherapy, in a Cohort of Neuroblastoma Patients With CNS Metastases at Relapse

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Neuroblastoma (NB) with central nervous system (CNS) metastases is rare at diagnosis, but occurs more often during relapse/progression. Patients with CNS metastases face a dismal prognosis, with no standardized curative treatment available.
Vicente Santa‐Maria Lopez   +13 more
wiley   +1 more source

The Periodic Table of Evaluation

open access: yesJournal of MultiDisciplinary Evaluation
Evaluation is a vast field of designs and methods in continuous development. The numerous parameters and choices associated with different methodological options can be difficult to fully understand without deep study and desk review.
Sara Vaca
doaj   +1 more source

Order From Confusion: International Chemical Standardization and the Elements, 1947-1990

open access: yesSubstantia, 2019
The International Union of Pure and Applied Chemistry (IUPAC) is the international standards making body for chemistry whose goal is to create a standardized common language for the global chemistry community.
Ann E. Robinson
doaj   +1 more source

Tableau périodique des éléments chimiques et actinides

open access: yesComptes Rendus. Chimie, 2020
Uranium ($\mathrm{Z} = 92$) is known since 1789 and it remained the heaviest element of the periodic table until 1940. In 1925 all the stable or radioactive natural elements were known and assigned in this table, the latest being discovered that year ...
Guillaumont, Robert
doaj   +1 more source

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