Results 41 to 50 of about 12,793,653 (323)

Natural Light Influence on Intellectual Performance. A Case Study on University Students

open access: yes, 2020
Natural light in interior spaces has many advantages: the most obvious is energy savings, but also many long term physical and mental health benefits.
Santiago Porras Álvarez
semanticscholar   +1 more source

Electromagnetic Properties for Arbitrary Spin Particles: Part 2 $-$ Natural Moments and Transverse Charge Densities [PDF]

open access: yes, 2009
In a set of two papers, we propose to study an old-standing problem, namely the electromagnetic interaction for particles of arbitrary spin. Based on the assumption that light-cone helicity at tree level and $Q^2=0$ should be conserved non-trivially by ...
C. E. Lee   +6 more
core   +1 more source

A natural light-driven inward proton pump. [PDF]

open access: yesNat Commun, 2016
Light-driven outward H+ pumps are widely distributed in nature, converting sunlight energy into proton motive force. Here we report the characterization of an oppositely directed H+ pump with a similar architecture to outward pumps.
Inoue K   +7 more
europepmc   +2 more sources

Leptogenesis and Low-energy Observables [PDF]

open access: yes, 2001
We relate leptogenesis in a class of theories to low-energy experimental observables: quark and lepton masses and mixings. With reasonable assumptions motivated by grand unification, one can show that the CP-asymmetry parameter takes a universal form ...
A. Pilaftsis   +33 more
core   +4 more sources

Effects of a commercial broiler enrichment programme with or without natural light on behaviour and other welfare indicators.

open access: yesAnimal, 2019
Commercial broiler production systems based on market initiatives to improve animal welfare beyond minimum legal requirements have emerged in several European countries.
I. D. de Jong, H. Gunnink
semanticscholar   +1 more source

Quantization of the Superstring with Manifest U(5) Super-Poincare Invariance [PDF]

open access: yes, 1999
The superstring is quantized in a manner which manifestly preserves a U(5) subgroup of the (Wick-rotated) ten-dimensional super-Poincar\'e invariance. This description of the superstring contains critical N=2 worldsheet superconformal invariance and is a
Berkovits   +4 more
core   +2 more sources

Dampak Sistem Penghawaan dan Pencahayaan terhadap Sick Building Syndrome

open access: yesComTech, 2013
Activities of office workers are most spent indoors. Unwittingly office buildings and enclosed spaces with air conditioning system usually do not have good ventilation and allow natural lighting. This condition may cause sick building syndrome (SBS). It
Daryanto Daryanto
doaj   +1 more source

Effects of natural light on improving the lighting and energy efficiency of buildings: toward low energy consumption and CO2 emission

open access: yesInternational Journal of Low-Carbon Technologies
Findings from simulations and case studies reveal a significant reduction in energy consumption and CO2 emissions, with up to 30% improvement in overall energy efficiency.
M. Arun, Gokul Gopan
semanticscholar   +1 more source

The Functional Significance of Black-Pigmented Leaves: Photosynthesis, Photoprotection and Productivity in Ophiopogon planiscapus ‘Nigrescens’ [PDF]

open access: yes, 2013
Black pigmented leaves are common among horticultural cultivars, yet are extremely rare across natural plant populations. We hypothesised that black pigmentation would disadvantage a plant by reducing photosynthesis and therefore shoot productivity, but ...
Clearwater, Michael J.   +2 more
core   +3 more sources

A Light Stop with Flavor in Natural SUSY

open access: yes, 2012
The discovery of a SM-like Higgs boson near 125 GeV and the flavor texture of the Standard Model motivate the investigation of supersymmetric quiver-like BSM extensions. We study the properties of such a minimal class of models which deals naturally with
A Arvanitaki   +71 more
core   +1 more source

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