Results 31 to 40 of about 1,040 (218)

The effect of drought stress on the limits and costs of plasticity in floral longevity in response to pollinator decline

American Journal of Botany, EarlyView.
Abstract Premise Declines in pollinator populations can reduce pollination services to plants, resulting in lower seed production. In response to these reductions, plants could increase the probability of pollinator visitation by plastically extending floral longevity.
Caelen McCabe, Christina M. Caruso
wiley   +1 more source

Ontogenetic changes and sexual dimorphism in the cranium and mandible of the Atlantic walrus (Odobenus rosmarus rosmarus L.)

The Anatomical Record, EarlyView.
Abstract Walruses have been an important subsistence and cultural resource for humans and have been exploited for millennia across their distribution. This exploitation has contributed to severe declines in several populations and local extirpations.
Katrien Dierickx, Oliver Kersten, Youri van den Hurk, Brenna A. Frasier, Richard Sabin, Bastiaan Star, James H. Barrett   +6 more
wiley   +1 more source

A high gain, wide-band, fast settling amplifier with no-miller capacitor compensation

IEICE Electronics Express, 2011
A high DC gain, wide band and fast settling fully differential amplifier is presented. The pole zero cancellation technique is used in order to increase the band width of the OTA. Also, a new technique for pole zero cancellation in three-stage OTAs is presented. The proposed OTA simulated in standard TSMC 0.18µm CMOS technology with a 1.8V power supply.
Soroush Moallemi, Abumoslem Jannesari
openaire   +2 more sources

More Than 10 Years on: Does a State‐of‐the‐Art Review and Synthesis Offer New Frameworks to Guide Future Design for Remanufacturing Research?

Business Strategy and the Environment, EarlyView.
ABSTRACT There is strong evidence that design for remanufacturing (DfRem) can reduce initial‐design carbon emissions by up to 30%, and that product design can critically affect remanufacturing feasibility, yet academic adoption of DfRem remains limited.
Okechukwu Okorie, Yogendra Singh, Jennifer Russell, Chris Turner, Kingsley Oturu   +4 more
wiley   +1 more source

Arabidopsis AUGMIN8 Contains Two Independent Microtubule Association Domains

Cytoskeleton, EarlyView.
ABSTRACT Plant cells create a plasma membrane‐associated network of microtubules that are nucleated by γ‐tubulin ring complexes primarily through microtubule‐dependent microtubule nucleation (MDMN). This dynamic array organizes into specific patterns in response to developmental and environmental cues to influence primary cell wall construction.
Naveen K. Chana, Timothy Cioffi, Sidney L. Shaw   +2 more
wiley   +1 more source

Synthetic Engineering of Manganese Oxide–Carbon Nanocomposites for Maximized Metal Utilization in Supercapacitors

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A one‐pot metal–ammonia synthesis enables uniform Mn2O3 nanoparticle deposition on activated carbon, yielding composites with excellent electrochemical performance in supercapacitors. The method maximizes manganese utilization, eliminates toxic solvents, and achieves 34% of the theoretical maximum capacitance, significantly outperforming existing Mn–C ...
Katrina Mazloomian, Thomas R. Dore, Hector J. Lancaster, Christopher A. Howard, Thomas S. Miller   +4 more
wiley   +1 more source

Light‐Induced Reactions of Small‐Membered Cyclic Carbonyl Compounds

European Journal of Organic Chemistry, EarlyView.
This review highlights recent advances in the synthesis and photochemical reactivity of cyclopropenone and cyclobutenedione. These compounds undergo photolysis upon direct excitation, and in some cases, through indirect excitation by photocatalysts. The resulting photogenerated species exhibit unique reactivity profiles that are strongly influenced by ...
Kenji Mishiro
wiley   +1 more source

Hybrid Cascode Compensation With Hybrid Q-Factor Control for Three-Stage Unconditionally Stable Amplifiers

IEEE Access
This paper presents Hybrid Cascode Compensation with Hybrid Q–Factor Control (HCCHQ), for three-stage feedback operational transconductance amplifiers (OTA) capable of handling any load capacitor ( $C_{L}$ ).
Hamed Aminzadeh, Mohammad Mehdi Valinezhad, Alfio Dario Grasso   +2 more
doaj   +1 more source

Static and Dynamic Radiation Damage of Silicon Carbide VDMOS and Their Comparison

Yuanzineng kexue jishu, 2022
The dynamic characteristics of silicon carbide VDMOS (SiC VDMOS) with different bias states under total dose radiation environment were studied. The effects of 60Co γ ray irradiation on the threshold voltage and switching characteristics of SiC VDMOS ...
FENG Haonan;YANG Sheng;LIANG Xiaowen;ZHANG Dan;PU Xiaojuan;SUN Jing;WEI Ying;CUI Jiangwei;LI Yudong;YU Xuefeng;GUO Qi
doaj  

Effect of Fruit Maturation Stage on the Chemical Composition and Antioxidant and Cytotoxic Activities of Piper nigrum Essential Oil

Flavour and Fragrance Journal, EarlyView.
The essential oils of Piper nigrum show marked chemical and biological variation across fruit maturation stages. Ripe fruits yield oils with the strongest antioxidant and cytotoxic activities, demonstrating that maturation directly modulates volatile composition and enhances the bioactive potential of this aromatic species.
Marcio Marcelo da Siva Pessoa, Jorddy Neves Cruz, Ingryd Nayara de Farias Ramos, André Salim Khayat, Eloisa Helena de Aguiar Andrade, José de Arimatéia Rodrigues do Rego, Davi do Socorro Barros Brasil   +6 more
wiley   +1 more source