Results 81 to 90 of about 1,263,978 (243)

Vägar till militär etik genom ledarskapsämnet

open access: yes, 2021
Den här texten är ett introduktionskapitel till ett läromedel i etik för Officersprogrammet, där antologins övriga kapitel sätts i ett sammanhang genom att lyfta fram fokusområden och avgränsningar.
Robertsson, Magna,, Bergman, David,
core  

Sequential Patterning of Photoresponsive Hydrogels Directs Crypt Fission and Reveals the Role of Epithelial Curvature on Fission Symmetry

open access: yesAdvanced Science, EarlyView.
Deterministic crypt fission is achieved in intestinal organoids using photopatternable hydrogels with spatiotemporal control. Daughter‐crypt symmetry is shown to depend on parent‐crypt geometry and epithelial curvature, while myosin‐dependent mechanosensing links tissue shape to regenerative outcomes.
Delaney L. McNally   +8 more
wiley   +1 more source

Modern concepts of soil conservation

open access: yesInternational Soil and Water Conservation Research, 2013
Approaches to soil conservation are in constant evolution and improvement. This paper summarizes some of the modern approaches, ranging from no till to conservation agriculture to sustainable land management.
J. Dumanski, R. Peiretti
doaj   +1 more source

[Letter from Mamie Till to Curtis King, September 9, 1993]

open access: yes, 1993
Letter from Mamie Till to Curtis King, September 9, 1993. The letter begins with simple formalities as Till says she remembers King from his production.
Till, Mamie
core  

Ändrad tillgång till kollektivtrafik– vad händer då? [Elektronisk resurs]

open access: yes, 2023
Ambitiösa klimatmål och pågående klimatkris ställer krav på en snabb omställning till ett mer hållbart resande. Investeringar har gjorts för att öka tillgången till kollektiva färdmedel.Många utmaningar tycks dock kvarstå, inte minst med hänsyn till ...
Nilsson, Désirée,   +1 more
core  

The Interplay of Curvature, Geometry, and Topology Shapes Tissue Organisation in Epithelial Shells

open access: yesAdvanced Science, EarlyView.
Purely geometric 3D Voronoi models predict the organisation of epithelial shells. The interplay of curvature, geometry, and topology enriches the number of pentagons in shells with lower number of cells. Small MDCK cysts and Mouse embryos match the top polygonal configurations in a compactness‐based ranking derived from the Voronoi model. In conclusion,
Laura Morato   +9 more
wiley   +1 more source

Global achievements in soil and water conservation: The case of Conservation Agriculture

open access: yesInternational Soil and Water Conservation Research, 2014
In response to the dust bowls of the mid-thirties in the USA, soil and water conservation programmes involving reduced tillage were promoted to control land degradation, particularly soil erosion.
A. Kassam, R. Derpsch, T. Friedrich
doaj   +1 more source

An Economic Analysis of No-Till Rotations and Effects on Carbon Sequestration and Long Term Sustainability of Agriculture [PDF]

open access: yes
This study summarizes key economic results from 100 different no-till (NT) crop rotations and a conventional (CT) corn-soybean rotation based on agronomic data from Brookings County, South Dakota for 2001 -2008.
Harer, Justin, Janssen, Larry
core  

Achieving High‐Instantaneous Pulse Power in Contact‐Separation TENG via Series Capacitive Voltage Control Architecture

open access: yesAdvanced Science, EarlyView.
Conventional contact‐separation triboelectric nanogenerators generate high voltage but deliver limited power due to premature charge dissipation. Here, a capacitive charge reservoir architecture decouples charge accumulation from discharge triggering, enabling sequential voltage amplification via floating‐layer capacitive coupling.
Ajay Haridas CP   +3 more
wiley   +1 more source

Legume–Cereal Cover Crops Improve Soil Properties but Fall Short on Weed Suppression in Chickpea Systems

open access: yesAgronomy
Chickpea is a highly weed-prone crop with limited herbicide options and high labor demands, raising the following question: Can fall-planted legume–cereal cover crops (CCs) improve soil properties while reducing herbicide use and manual weeding pressure?
Zelalem Mersha   +7 more
doaj   +1 more source

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