Results 21 to 30 of about 1,281,214 (279)

Prevalence of internet addiction among college students in the Indian setting: a systematic review and meta-analysis

General Psychiatry, 2021
Background The internet is an integral part of everyone’s life. College going adolescents are highly vulnerable to the misuse of the internet.Aims To estimate the pooled prevalence of internet addiction (IA) among college students in India.Methods ...
Suresh Sharma, Sandeep Grover, Jaison Joseph, Abin Varghese, Vijay VR, Manju Dhandapani, Deepika Khakha, Sucheta Mann, Biji P Varkey   +8 more
doaj   +1 more source

Lignin valorization through integrated biological funneling and chemical catalysis [PDF]

Proceedings of the National Academy of Sciences, 2014
Significance For nearly a century, processes have been used to convert biomass-derived carbohydrates, such as glucose, into fuels and chemicals. However, plant cell walls also contain an aromatic polymer, lignin, that has not been cost-effectively converted into fuels or commodity chemicals.
Jeffrey G, Linger, Derek R, Vardon, Michael T, Guarnieri, Eric M, Karp, Glendon B, Hunsinger, Mary Ann, Franden, Christopher W, Johnson, Gina, Chupka, Timothy J, Strathmann, Philip T, Pienkos, Gregg T, Beckham   +10 more
openaire   +2 more sources

The Amino Terminal Domain and Modulation of Connexin36 Gap Junction Channels by Intracellular Magnesium Ions

Frontiers in Physiology, 2022
Electrical synapses between neurons in the mammalian CNS are predominantly formed of the connexin36 (Cx36) gap junction (GJ) channel protein. Unique among GJs formed of a number of other members of the Cx gene family, Cx36 GJs possess a high sensitivity ...
Tadas Kraujalis, Tadas Kraujalis, Lukas Gudaitis, Lina Kraujaliene, Mindaugas Snipas, Mindaugas Snipas, Nicolás Palacios-Prado, Nicolás Palacios-Prado, Vytas K. Verselis   +8 more
doaj   +1 more source

A microRNA binding site polymorphism in the 3′ UTR region of VEGF-A gene modifies colorectal cancer risk based on ethnicity: a meta-analysis

Journal of the Egyptian National Cancer Institute, 2022
Background Vascular endothelial growth factor A (VEGF-A) plays an integral role in angiogenesis by contributing to growth, development, and metastasis of solid tumors.
Sai Sushmitha Kontham, Charles Emmanuel Jebaraj Walter, Zioni Sangeetha Shankaran, Arvind Ramanathan, Nirmala Karuppasamy, Thanka Johnson   +5 more
doaj   +1 more source

Squids use multiple escape jet patterns throughout ontogeny

Biology Open, 2020
Throughout their lives, squids are both predators and prey for a multitude of animals, many of which are at the top of ocean food webs, making them an integral component of the trophic structure of marine ecosystems.
Carly A. York, Ian K. Bartol, Paul S. Krueger, Joseph T. Thompson   +3 more
doaj   +1 more source

Association between food insecurity and key metabolic risk factors for diet-sensitive non-communicable diseases in sub-Saharan Africa: a systematic review and meta-analysis

Scientific Reports, 2021
In previous studies, food insecurity has been hypothesised to promote the prevalence of metabolic risk factors on the causal pathway to diet-sensitive non-communicable diseases (NCDs).
Sphamandla Josias Nkambule, Indres Moodley, Desmond Kuupiel, Tivani P. Mashamba-Thompson   +3 more
doaj   +1 more source

Propagation of double internal cracks under uniaxial tension based on 3D-ILC

Yantu gongcheng xuebao, 2019
The multiple-crack interaction is an important research topic in fracture mechanics, but few studies have focused on the interaction of 3D internal cracks under uniaxial tension. 3D double internal cracks are generated based on 3D-ILC.
YU Shu-yang 1,2, WANG Hai-jun 2, REN Ran 3, TANG Lei 2, ZHONG Lin-wei 1, ZHANG Zhi-tao 2, TANG Zi-xuan 2
doaj   +1 more source

Existence of Solutions to an Optimal Control Problem for a Hybrid System

Известия Иркутского государственного университета: Серия "Математика", 2017
In this note we consider an optimal control problem for a hybrid dynamical system. In Russian literature such systems are also called discrete-continuous or mixed logical dynamical systems.
N. S. Maltugueva, N. I. Pogodaev
doaj   +1 more source

Path integral calculations of coupled spin and dendrimeric systems [PDF]

, 2022
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo termsThe student, Reshmi Dani, accepted the attached license on 2022-09-15 at 11:16.The student, Reshmi Dani ...
Dani, Reshmi
core  

Funnel Equations and Multivalued Integration Problems for Control Synthesis [PDF]

, 1990
This paper deals with the problem of synthesizing a feedback control strategy for a linear controlled system subjected to unknown but bounded input disturbances and convex state constraints (see [1–7]). While seeking for the solution in the form of an “extremal strategy” as introduced by N.N.
Kurzhanski, A.B., Nikonov, O.I.
openaire   +2 more sources