Results 41 to 50 of about 4,421,314 (333)
Steiner Forest Orientation Problems [PDF]
, 2011 We consider connectivity problems with orientation constraints. Given a directed graph $D$ and a collection of ordered node pairs $P$ let $P[D]=\{(u,v) \in P: D {contains a} uv{-path}}$.
Cygan, Marek, Kortsarz, Guy, Nutov, Zeev
core +6 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
The Journal for Transdisciplinary Research in Southern Africa, 2021 no abstract available.
Janet Jarvis, Sarina de Jager
doaj +1 more source
FEBS Letters, EarlyView.Cells must clear mislocalized or faulty proteins from membranes to survive. The AAA+ ATPase Msp1 performs this task, but dissecting how its six subunits work together is challenging. We engineered linked dimers with varied numbers of functional subunits to reveal how Msp1 subunits cooperate and use energy to extract proteins from the lipid bilayer ...
Deepika Gaur +5 more
wiley +1 more source
FEBS Letters, EarlyView.Phototrophs evolved light‐harvesting systems adapted for efficient photon capture in habitats enriched in far‐red radiation. A subset of eukaryotic pigment‐binding proteins can absorb far‐red photons via low‐energy chlorophyll states known as red forms.
Antonello Amelii +8 more
wiley +1 more source
A Cre‐dependent lentiviral vector for neuron subtype‐specific expression of large proteins
FEBS Letters, EarlyView.We designed a versatile and modular lentivector comprising a Cre‐dependent switch and self‐cleaving 2A peptide and tested it for co‐expression of GFP and a 2.8 kb gene of interest (GOI) in mouse cortical parvalbumin (PV+) interneurons and midbrain dopamine (TH+) neurons.
Weixuan Xue +6 more
wiley +1 more source
Revue Congolaise des Sciences et TechnologiesAprès avoir constaté la faible implication des relais communautaires de la zone de santé de Kabondo aux activités des soins de santé primaires, nous avons jugé utile de mener une étude sur les déterminants de la faible participation des relais ...
Jean Pierre Kilima Musamba +2 more
doaj +1 more source
Construction and reforming of Moral character and the affect factors From Motahhari's Perspective [PDF]
علوم تربیتی از دیدگاه اسلام, 2020 The aim of the present study was to construct and correct the moral character and the factors affecting it from Shahid Motahari's view. Ethics is one of the most important aspects of human personality, and the subject of "moral character" is considered a
Saeede Hamledari, Rohollah Mosavi Zadeh
doaj +1 more source
Unsupervised Learning of Semantic Orientation from a Hundred-Billion-Word Corpus [PDF]
, 2002 The evaluative character of a word is called its semantic orientation. A positive semantic orientation implies desirability (e.g., "honest", "intrepid") and a negative semantic orientation implies undesirability (e.g., "disturbing", "superfluous").
Littman, Michael L., Turney, Peter D.
core +2 more sources
Orientable and Negative Orientable Sequences
Discrete Applied MathematicsAnalogously to de Bruijn sequences, orientable sequences have application in automatic position-location applications and, until recently, studies of these sequences focused on the binary case. In recent work by Alhakim et al., a range of methods of construction were described for orientable sequences over arbitrary finite alphabets; some of these ...
Chris J. Mitchell, Peter R. Wild
openaire +2 more sources