Results 41 to 50 of about 2,836,469 (290)
The Role Of Applying E-learning In Developing Students' Academic Motivation
مجلة العلوم و التكنولوجية للنشاطات البدنية و الرياضيةThis study aims to know the role of the application of E-learning in developing students' Academic Motivation in light of a set of variables (Institute, Gender, University Stage).
Meroua Behnas +2 more
doaj +1 more source
Novel Biological Activities of Allosamidins
Molecules, 2013 Allosamidins, which are secondary metabolites of the Streptomyces species, have chitin-mimic pseudotrisaccharide structures. They bind to catalytic centers of all family 18 chitinases and inhibit their enzymatic activity.
Shohei Sakuda +2 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background B‐acute lymphoblastic leukemia (B‐ALL) is the most common pediatric cancer, and while most children in high‐resource settings are cured, therapy carries risks for long‐term toxicities. Understanding parents’ concerns about these late effects is essential to guide anticipatory support and inform evolving therapeutic approaches ...
Kellee N. Parker +7 more
wiley +1 more source
BIOLOGICAL ACTIVITIES OF LEUPEPTINS
The Journal of Antibiotics, 1969 Leupeptins, leupeptin Pr and leupeptin Ac, strongly inhibit proteolysis by plasmin, trypsin and papain, but do not inhibit proteolysis by α-chymotrypsin. The inhibition is competitive with substrates. The inhibitory effect on esterolysis by plasmin and trypsin is weaker than on proteolysis.
TAKAAKI AOYAGI +7 more
openaire +3 more sources
Biological Activity of Essential Oils [PDF]
Molecules, 2020 Essential oils (EOs) have for a long time been recognized to possess several different biological activities [...]
Francesca Mancianti +1 more
openaire +3 more sources
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Aconitase: To Be or not to Be Inside Plant Glyoxysomes, That Is the Question
Biology, 2020 After the discovery in 1967 of plant glyoxysomes, aconitase, one the five enzymes involved in the glyoxylate cycle, was thought to be present in the organelles, and although this was found not to be the case around 25 years ago, it is still suggested in ...
Luigi De Bellis +2 more
doaj +1 more source
Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source
Anaplastic large T cell lymphoma presenting in the parotid gland: a diagnostic challenge
The Egyptian Journal of OtolaryngologyBackground Non-Hodgkin lymphomas are a group of hematological malignancies that result from the uncontrolled proliferation of lymphoid cells. These malignancies are classified into different types based on histological structure and tumor cell type. This
Karima Bouali +5 more
doaj +1 more source
Biologically active Pyrimidine Hydrazones
Asian Journal of Pharmaceutical Research, 2015 Pyrimidine constitutes an important class of heterocycles in drug discovery & is very well known for their anticancer, antimicrobial, antioxidant & antiviral activities. Hydrazones is a class of organic compounds with the structure R1R2C=NNH2. They are formed usually by the action of hydrazine on ketones or aldehydes & have efficient CNS depressant ...
Sanchit Srivastav +3 more
openaire +2 more sources