Results 11 to 20 of about 3,616,669 (319)

Campus Microgrids within the South African Context: A Case Study to Illustrate Unique Design, Control Challenges, and Hybrid Dispatch Strategies

open access: yesEnergies, 2023
South African universities boast a remarkable solar photovoltaic (PV) resource as a primary renewable energy component. Due to high peak demand tariffs and inherent prominent heating and cooling loads, fast and granular demand response programs are well ...
Stephanus Erasmus   +2 more
doaj   +1 more source

Suicide epidemic in Malawi: what can we do?

open access: yesThe Pan African Medical Journal, 2021
Suicide continues to be a global health concern, affecting all continents. Although some studies have associated it with mental disorders such as severe depression, research also shows that a significant number of cases occur due to emerging life ...
Gift Treighcy Banda   +3 more
doaj   +1 more source

Smoke-free Ege: An attempt for an integrative prevention strategy for tobacco control at a University setting

open access: yesTobacco Induced Diseases, 2018
Introduction Ege University is a pioneering university at Ege region with its 70 000 students and approximately 3000 academic staff. Tobacco control policies, parallel to the current regulations in the country, are an important issue for Ege University ...
Isil Ergin   +15 more
doaj   +1 more source

Torsion-free groups with indecomposable holonomy group. I [PDF]

open access: yes, 2001
We study the torsion-free generalized crystallographic groups with indecomposable holonomy group which is isomorphic to either C-p, or C-p x C ...
Bódi, Viktor   +5 more
core   +1 more source

Torsion-free crystallographic groups with indecomposable holonomy group II. [PDF]

open access: yes, 2004
Let K be a principal ideal domain, G a finite group, and M a KG-module which is a free K-module of finite rank on which G acts faithfully. A generalized crystallographic group is a non-split extension C of M by G such that conjugation in C induces the G ...
Bódi, Viktor   +3 more
core   +1 more source

On one A.I. Mal’cev’s Question from the ”Kourovskaya Notebook”

open access: yesМоделирование и анализ информационных систем, 2015
It is shown that the derived subgroup of the free group is not first-oder definable.
V. G. Durnev
doaj   +1 more source

Free Acres group photo at 25th anniversary, Summer 1935 [PDF]

open access: yes, 1935
Group photograph of Free Acres inhabitants - taken during the summer of 1935 at the 25th anniversary celebration of the existence of Free Acres. Anniversary activities included sports, games, a play, and a slide show capturing the history of Free ...
Crawford, Will
core   +1 more source

FREE KNOTS AND GROUPS

open access: yesJournal of Knot Theory and Its Ramifications, 2010
Free knots are a simplification of virtual knots obtained by forgetting arrow/sign information at classical crossings. First non-trivial examples of free knots were constructed recently by the second named author. By using parity considerations, we construct invariants of free knots valued in certain groups.
Manturov V.O., Manturov O.V.
openaire   +6 more sources

The Axiomatics of Free Group Rings [PDF]

open access: yesGroups, Complexity, Cryptology, 2021
In [FGRS1,FGRS2] the relationship between the universal and elementary theory of a group ring $R[G]$ and the corresponding universal and elementary theory of the associated group $G$ and ring $R$ was examined.
Benjamin Fine   +4 more
doaj   +1 more source

Every group is a maximal subgroup of the free idempotent generated semigroup over a band [PDF]

open access: yes, 2013
Given an arbitrary group G we construct a semigroup of idempotents (band) BG with the property that the free idempotent generated semigroup over BG has a maximal subgroup isomorphic to G. If G is finitely presented then BG is finite. This answers several
Ruskuc, Nik   +3 more
core   +1 more source

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