Results 131 to 140 of about 143,294 (307)

Air Pollution Beyond Boundaries: Opportunities for Ecological Modernization in Paso del Norte

Frontera Norte, 2002
La contaminación del aire en Paso del Norte es un asunto preocupante. Algunos ciudadanos y organismos no gubernamentales compelen a los gobiernos de México y Estados Unidos a buscar soluciones a este problema binacional.
Ricardo Santes Álvarez
doaj  

Rising Incidence and Mortality of Colorectal Cancer Among Younger Adults: A Population‐Based Study in Taiwan, 1994–2018

International Journal of Cancer, EarlyView.
Colorectal cancer incidence and mortality have increased in the Asia‐Pacific region over the past three decades. This population‐based study in Taiwan suggests a shift of the colorectal cancer burden towards the younger generations. An age–period–cohort model revealed higher annual increases in incidence (3.58%) and mortality (1.0%) rates among ...
Yun‐Chen Tsai, Chih‐Yi Wu, Tsung‐I Hung, Hung‐Yi Chiou   +3 more
wiley   +1 more source

New Hydrazone Derivatives Featuring Isatin and Piperazine Moieties: Synthesis, Cytotoxicity Evaluation, and Molecular Modeling Studies

Journal of Applied Toxicology, EarlyView.
ABSTRACT In this study, ten novel compounds (IPH1–IPH10) were designed by integrating three pharmacophores (isatin, piperazine, and hydrazone) commonly found in the molecular structures of anticancer agents. The target molecules were obtained by the reaction of in‐house prepared 4‐(4‐(pyridin/pyrimidin‐2‐yl)piperazin‐1‐yl)benzohydrazide with various ...
Semiha Köprü, Münevver Baran, Miyase Gözde Gündüz, Şengül Dilem Doğan   +3 more
wiley   +1 more source

TLC of Porphyrins

Clinical Chemistry, 1972
openaire   +2 more sources

Rapid Identification of Ralstonia solanacearum by the Direct Colony TLC and Simple TLC

, 1998
Rapid identification of bacterial wilt pathogen, Ralstonia solanacearum was conducted by the direct colony TLC and simple TLC methods. All fourteen isolates from different host plants in Bangladesh exhibited similar chromatograms with R.
Furuya, Naruto, Matsuyama, Nobuaki, Rahman, Md. Zahidur, 古屋, 成人, Khan, Abu Ashraf, 松山, 宣明, Mian, Ismail Hossain   +6 more
core  

Morpho‐Anatomical and HPTLC Investigations of Lysimachia nummularia L. (Primulaceae) Grown in Switzerland

Microscopy Research and Technique, EarlyView.
This research provides a complete morphoanatomical description of Lysimachia nummularia, as well as a HPTLC profile. Standard techniques of light and scanning electron microscopies, as well as standard techniques of HPTLC, were used. ABSTRACT Primulaceae are distributed all over the world, encompassing around 2590 species.
Carolina Sabedotti, João Vitor da Costa Batista, Bettina Leonhard, Konrad Urech, Mahsa Ahmadinezhad, Jakob Maier, Stephan Baumgartner, Fabio Boylan, Carla Holandino, Jane Manfron   +9 more
wiley   +1 more source

Development of an Efficient and Scalable Process for Preparing Timolol N‐Nitrosamine Impurities B, C, E, H, I, J, and Their ADMET Evaluation

Journal of Heterocyclic Chemistry, EarlyView.
N‐nitrosamine impurities (B, C, E, H, I, J) of timolol maleate are easily synthesized from diethyl malonate and 3,4‐dichloro‐1,2,5‐thiadiazole. Good yields and precise impurity profiling are made possible by the effective technique, which also ensures pharmaceutical safety and strengthens regulatory compliance.
Kottolla Sai Prasad, Chithaluri Sudhakar, Vijaya Krishna Ravi, Bijaya Kethan Sahoo   +3 more
wiley   +1 more source

EARLY DIAGNOSIS OF NEONATAL SEPSIS THROUGH HAMETOLOGICAL AND BIOCHEMICAL MARKERS

Gomal Journal of Medical Sciences, 2014
Background: Neonatal sepsis is a common occurrence in our part of the world characterized by signs and symptoms of bacterial infection during first 28 days of life.
Sarah Ali Arif, Ayesha Ehsan, Mizna Arif, Javaid Hussain, Rahila Bano   +4 more
doaj  

Introducción - Revisión de los TLC en Colombia: impacto sectorial y recomendaciones de política

Después de casi 30 años de haber iniciado la negociación del Acuerdo del G-3 (Colombia, México y Venezuela), y 20 de los Tratados de Libre Comercio (TLCs) con Estados Unidos, Canadá, Mercosur y la Unión Europea (UE), los resultados de estos acuerdos no ...
Álvarez Zarate, José Manuel
core   +1 more source

A Solvent‐Free Synthesis of Imidazo[1,5‐a]pyridines Using CCl4 as an Oxidant

Journal of Heterocyclic Chemistry, EarlyView.
A solvent‐free synthesis of imidazo[1,5‐a]pyridines (Impys) using CCl4 as an oxidant reagent and DBU as the base is informed. An array of Impys derived from different benzylic, heteroaryl aldehydes and others was synthesized in moderate to good yields.
Alejandro Castillo‐Baltazar, Luis E. Mendoza‐Herrera, Alfredo Toscano, J. Armando Luján‐Montelongo, M. Carmen Ortega‐Alfaro, José G. López‐Cortés   +5 more
wiley   +1 more source