Results 81 to 90 of about 10,390 (256)

Coloration in Argia damselflies of Central Mexico responds to changes in herbaceous vegetation La coloración de caballitos del diablo del género Argia responde a cambios en la cobertura de vegetación herbácea en el Centro de México

Insect Conservation and Diversity, Volume 18, Issue 4, Page 593-603, July 2025.
The increase in urban lands and the vegetation loss implies changes in the colour of the background which in turn could cause changes in the coloration of individuals. We measured changes in body lightness of damselflies through 19 sites in Central Mexico, with a different degree of urbanisation and a different percentage of native vegetation. We found
Teresa L. Ramos‐Merino, Catalina M. Suárez‐Tovar   +1 more
wiley   +1 more source

Reaction of Pteridine and Its 8-0xide with Grignard Reagents, Regioselective 7-Alkylation of Pteridine

Pteridines, 1995
Reaction of 2-amino-4-butoxypteridine (1) with alkyl- or phenylmagnesium bromide followed by protonative and oxidative work-up with a solution of iodine in acetic acid gives 7 -alkyl- or 7 -phenylpteridines (2 ).
Kiguchi Kenji, Murata Shizuaki, Sugimoto Takashi   +2 more
doaj   +1 more source

Characterisation of the carboxypeptidase G2 catalytic site and design of new inhibitors for cancer therapy [PDF]

, 2018
The enzyme carboxypeptidase G2 (CPG2) is used in antibody‐directed enzyme prodrug therapy (ADEPT) to catalyse the formation of an active drug from an inert prodrug.
Brackstone, Carla, Davis, Paul, Dixon, Ann M., Jeyaharan, Dhadchayini, Schouten, James   +4 more
core   +1 more source

Malignant Mixed Irido‐Melanophoroma in a Betta splendens with Concurrent Mycobacterium chelonae Isolation—A Case Report

Journal of Fish Diseases, Volume 48, Issue 7, July 2025.
ABSTRACT A 10‐month‐old intact male blue Siamese fighting fish (Betta splendens) was presented to the Purdue University Small Animal Hospital with multiple bilateral masses on the caudal flank. Comprehensive evaluation using impression cytology, histopathology and transmission electron microscopy (TEM) revealed a tumour composed of a mixed‐cell ...
Zi An Yu, Lorraine A. Corriveau, Joanne B. Messick   +2 more
wiley   +1 more source

A single gene (yes) controls pigmentation of eyes and scales in Heliothis virescens

Journal of Insect Science, 2001
A yellow-eyed mutant was discovered in a strain of Heliothis virescens, the tobacco budworm, that already exhibited a mutation for yellow scale, y. We investigated the inheritance of these visible mutations as candidate markers for transgenesis.
Thomas M. Brown, Sae-Youll Cho, Sujin Park, Satish S. Pimprale, Patricia K. Bryson   +4 more
doaj  

Synthesis and Oligonucleotide Incorporation of Fluorescent Cytosine Analogue tC: a Promising Nucleic Acid Probe [PDF]

, 2007
The tricyclic cytosine, tC, is a fluorescent base analogue with excellent properties for investigating intrinsic characteristics of nucleic acid as well as interactions between nucleic acids and other molecules.
A Holmén, A Okamoto, B Roth, B Roth, BW Allan, CR Guest, DA Berry, DC Ward, JN Wilson, JT Stivers, JT Stivers, KC Engman, KY Lin, L Marcus Wilhelmsson, LB Bloom, LM Wilhelmsson, LM Wilhelmsson, ME Hawkins, ME Hawkins, ME Hawkins, ME Hawkins, MJ Rist, P Sandin, Per Lincoln, Peter Sandin, PO Lycksell, RA Hochstrasser, SL Driscoll, T Brown, T Brown, Tom Brown, V Rolland, Z Kazimierczuk   +32 more
core   +1 more source

Prediction of Fragmentation Pathway of Natural Products, Antibiotics, and Pesticides by ChemFrag

Journal of Mass Spectrometry, Volume 60, Issue 5, May 2025.
ABSTRACT Because the manual interpretation of ESI‐MSn fragmentation spectra is time‐consuming and usually requires expert knowledge, automated annotation is often sought. The fragmentation software ChemFrag enables the annotation of MSn spectra by combining a rule‐based fragmentation and a semiempirical quantum chemical approach.
Jördis‐Ann Schüler, Annemarie E. Kramell, Antonia Schmidt, Pauline D. Walesch, René Csuk   +4 more
wiley   +1 more source

Studies and Comparison of Urinary Pteridine Patterns in Dogs and Cats and their Alteration in Various Neoplasias and Virus Infections

Pteridines, 1989
Urinary excretion levels of five pteridines in healthy cats and dogs and in 14 groups of animals with tumours or virus infections were determined by HPLC after partial purification by ion exchange chromatography.
Goldberg M., Gassner F., Merkenschlager M.   +2 more
doaj   +1 more source

GO-WORDS: An Entropic Approach to Semantic Decomposition of Gene Ontology Terms [PDF]

, 2008
The Gene Ontology (GO) has a large and growing number of terms that constitute its vocabulary. An entropy-based approach is presented to automate the characterization of the compositional semantics of GO terms.
Deendayal Dinakarpandian, Tuanjie Tong, Yugyung Lee   +2 more
core   +1 more source

Numerical taxonomy of moderately halophilic Gram-negative rods [PDF]

, 1982
A study was made of 516 randomly selected isolates of moderately halophilic bacteria from solar salterns showing salinities between 8.8 and 40.0% (w/v) total salts, located in S.E. Spain.
Quesada Arroquia, Emilia, Ramos Cormenzana, Alberto, Rodríguez Valera, Francisco, Ruiz Berraquero, Francisco, Ventosa Ucero, Antonio   +4 more
core   +1 more source