Results 131 to 140 of about 12,729 (243)
People and Nature, Volume 8, Issue 4, Page 808-834, April 2026.Abstract Background. Fostering healthy urban living conditions is a critical public health objective. One efficient approach lies in the contact to nature, as numerous studies have shown that urban and peri‐urban natural elements both indoors and outdoors carry a large potential in buffering typical urban threats to mental health.
Marilisa Herchet +6 more
wiley +1 more source
Alzheimer's &Dementia: Translational Research &Clinical Interventions, Volume 12, Issue 2, April/June 2026.Abstract INTRODUCTION Physical activity is a promising non‐pharmacological approach to support brain health. Although prior studies suggest cognitive benefits, it remains unclear how exercise alters brain structure and connectivity on the Alzheimer's disease (AD) continuum and whether such neural changes translate to functional improvements. This study
Ravi Dadsena +6 more
wiley +1 more source
Gut microbial metabolites in cancer immunomodulation
Molecular CancerGut microbiota–derived metabolites are emerging as systemic “remote immunoregulators” that shape tumor immunity across tissues. Integrating evidence across short-chain fatty acids, tryptophan derivatives, secondary bile acids, polyamines and other ...
Hengshuo Liu +7 more
doaj +1 more source
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract Measuring area‐based conservation outcomes in tropical forests is challenging due to cryptic human disturbances (e.g., hunting). As a result, comparative studies of management strategies providing quantitative outcomes remain scarce, especially in the Neotropics.
Lucy Perera‐Romero +5 more
wiley +1 more source
Direct detection optical intersatellite link at 220 Mbps using AlGaAs laser diode and silicon APD with 4-ary PPM signaling [PDF]
A newly developed 220 Mbps free-space 4-ary pulse position modulation (PPM) direct detection optical communication system is described. High speed GaAs integrated circuits were used to construct the PPM encoder and receiver electronic circuits.
Davidson, Frederic M., Sun, Xiaoli
core +1 more source
Integrating gepants into clinical practice for the acute treatment of migraine
Headache: The Journal of Head and Face Pain, Volume 66, Issue 4, Page 976-989, April 2026.Abstract Objective To assess the role of small‐molecule calcitonin gene–related peptide receptor antagonists (gepants) in the acute treatment of migraine, particularly in relation to triptan treatments. Background Triptans have established efficacy and are widely prescribed for the acute treatment of migraine.
Richard B. Lipton +4 more
wiley +1 more source
Analog-to-digital conversion techniques for precision photometry [PDF]
Three types of analog-to-digital converters are described: parallel, successive-approximation, and integrating. The functioning of comparators and sample-and-hold amplifiers is explained.
Opal, Chet B.
core +1 more source
Monolithic GaAs digitizer for space-based laser pulse spreading effect [PDF]
A 6-bit 1-GHz digitizer was designed to analyze the 1-ns pulse spreading effects in a space based altimeter. The digitizer consisted of four 4-bit flash A/D converters and a 6-bit encoder.
Lao, Bennig, Staples, Edward
core +1 more source
Design considerations for a monolithic, GaAs, dual-mode, QPSK/QASK, high-throughput rate transceiver [PDF]
A monolithic, GaAs, dual mode, quadrature amplitude shift keying and quadrature phase shift keying transceiver with one and two billion bits per second data rate is being considered to achieve a low power, small and ultra high speed communication system ...
Kot, R. A., Oliver, J. D., Wilson, S. G.
core +1 more source
A study of high-speed AD and DA converters using redundancy techniques Interim report, May 10, 1963 - May 9, 1964 [PDF]
High speed analog-to-digital converters compared using redundancy encoding ...
Carroll, C. C., Mott, H.
core +1 more source