Results 101 to 110 of about 16,440,357 (384)

PERBEDAAN PENGARUH PENGGUNAAN MODELPEMBELAJARAN KOOPERATIF TIPEJIGSAW DAN GROUP INVESTIGATION (GI) TERHADAP PRESTASI BELAJAR BIOLOGI DITINJAU DARI MOTIVASI BERPRESTASI SISWA Penelitian pada Siswa Kelas X di SMA Negeri Kabupaten Kudus Tahun Pelajaran2008/2009 [PDF]

open access: yes, 2009
The aimsof this research are to find out : (1) the effect difference between implementation of cooperative learning model’s Jigsaw type, Group Investigation(GI) type, and convensional model’s on thelearning achievement of Biology, (2) the effect ...
AFIFUDDIN, NUR
core  

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

Targeted proteomics analysis in type 1 diabetes identifies lower agouti-related protein levels in individuals with impaired hypoglycaemia awareness

open access: yesScientific Reports
Impaired awareness of hypoglycaemia (IAH) is a complication of diabetes treatment, whereby individuals are no longer able to feel an oncoming hypoglycaemic event.
Rita D. M. Varkevisser   +8 more
doaj   +1 more source

Mathematical Modeling Highlights the Complex Role of AKT in TRAIL-Induced Apoptosis of Colorectal Carcinoma Cells

open access: yesiScience, 2019
Summary: Protein kinase B/AKT is a highly connected protein involved in a range of signaling pathways. Although it is known to regulate several proteins in the apoptotic pathway, its system-level effects remain poorly understood.
Matthew W. Anderson   +3 more
doaj   +1 more source

Design and construction of a new Drosophila species, D.synthetica, by synthetic regulatory evolution [PDF]

open access: yes, 2011
Here, I merge the principles of synthetic biology^1,2^ and regulatory evolution^3-11^ to create a new species^12-15^ with a minimal set of known elements.
Eduardo Moreno
core   +1 more source

Random model for RNA interference yields scale free network

open access: yes, 2003
We introduce a random bit-string model of post-transcriptional genetic regulation based on sequence matching. The model spontaneously yields a scale free network with power law scaling with $ \gamma=-1$ and also exhibits log-periodic behaviour.
Balcan, Duygu, Erzan, Ayse
core   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

Effect of dietary supplementation of some antioxidants on growth performance, carcass composition and breast meat characteristics in quails reared under heat stress

open access: yesCzech Journal of Animal Science, 2010
This research investigates the effects of adding vitamin E, vitamin C, vitamin E+C, and alpha lipoic acid to feed rations for Japanese quails (Coturnix coturnix japonica) exposed to heat stress.
H. Imik   +4 more
doaj   +1 more source

The k-NN algorithm for compositional data: a revised approach with and without zero values present [PDF]

open access: yes, 2014
In compositional data, an observation is a vector with non-negative components which sum to a constant, typically 1. Data of this type arise in many areas, such as geology, archaeology, biology, economics and political science among others.
Tsagris, Michail
core   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

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