Results 21 to 30 of about 5,616 (255)

Tandem Duplication‐Driven Neofunctionalization of UDP‐Glycosyltransferases Shapes the Diversification of Triterpenoid Saponins in the Cucurbitaceae

Advanced Science, EarlyView.
We present a chromosome‐level genome assembly of Siraitia grosvenorii and, through comparative genomics, uncover a conserved UGT73 tandem array driving triterpenoid saponin diversification in Cucurbitaceae. Crystalized SgUGT73AM30 further reveals the regioselectivity mechanism underlying its catalytic activity.
Guangyi Wang, Mengmeng Li, Xuehui Dai, Yanchen Zhang, Yuhan Wu, Zhaotao Yan, Chenfei Tian, Hongkai Fan, Haili Liu, Xiaowei Zhang, Yiming Yang, Jiayu Lu, Yuwei Sun, Yong Wang   +13 more
wiley   +1 more source

Light‐Controlled Conductive Molecular Wire in an Artificial Lipid Membrane

Advanced Science, EarlyView.
A photochromic azobenzene derivative is shown to produce a unique photoelectric response when embedded in artificial lipid membranes. In its trans state, it forms conductive “molecular wires” that enhance membrane conductivity in the dark. Light‐induced cis isomerization suppresses this effect, showing that short‐chain molecules can modulate membrane ...
Ilaria Cardace, Lorenzo Dominici, Adriano Cola, Antonio Fieramosca, Vincenzo Ardizzone, Agostina Lina Capodilupo, Bruno Rizzuti, Milena De Giorgi, Dario Ballarini, Giuseppe Gigli, Daniele Sanvitto, Luisa De Marco   +11 more
wiley   +1 more source

Hemp Cultivation and Crop Diversification: Implications for Ecosystem Services in Kentucky

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines the ecosystem benefits of expanding hemp cultivation by assessing its impact on crop diversity. Using scenario‐based simulations and fixed‐effect panel regressions with county‐level data in Kentucky, we find that increased hemp acreage tends to enhance crop diversity, improving water quality and bird diversity.
Yunsun Park, Seong D. Yun, Brandy E. Phipps, Tyler Mark, Craig Schluttenhofer   +4 more
wiley   +1 more source

Pricing Dynamics in the US Hemp Market: A Vertical Price Transmission Analysis of the Hemp Value Chain

Agribusiness, EarlyView.
ABSTRACT The US hemp market is a new and nascent industry that has been devoid of research for about half a century. This study examined the effects of exogenous shock on price at each phase of the value chain—Farm (hemp biomass), and its impact on prices at other phases of the value chain—Intermediary Processor (crude cannabidiol hemp) and Final ...
Solomon Odiase, Tyler Mark, Patalee Buddhika Appuhamilage   +2 more
wiley   +1 more source

The role of venture‐financed startups in innovation for US agriculture

American Journal of Agricultural Economics, EarlyView.
Abstract To evaluate the role played by startup companies in the innovation ecosystem of US agriculture, we compile a unique dataset of 6024 new entrants founded 1987–2019 that details their financing lifecycles, annual economic performance, and patenting activities.
Gregory D. Graff, Charles A. W. de Grazia, Nicholas E. Rada   +2 more
wiley   +1 more source

Place‐based risk: Examining relationships between adolescent perceptions of community risk factors and adolescent substance use across geographic contexts

American Journal of Community Psychology, EarlyView.
Abstract Mixed evidence for the influence of structural and social factors on adolescent substance use behaviors exists across the rural–urban continuum. Therefore, this study explores how adolescent perceptions of structural and social community risk factors are associated with lifetime and past 30‐day use of alcohol, marijuana, cigarettes, and ...
Melissa Pearman Fenton, Sarah D. Lynne, Josie L. Bryan, Catherine Woodstock Striley, Larry F. Forthun   +4 more
wiley   +1 more source

EFECTOS NEUROPSICOLÓGICOS POR EL CONSUMO DE MARIHUANA EN ADULTOS JÓVENES

Cuadernos de Neuropsicología, 2019
La marihuana es una de las sustancias psicoactivas más consumidas por la población joven, esta sustancia puede ocasionar distintas afecciones clínicas, incluidas las alteraciones neuropsicológicas.
Edwin Pozo-Hernández, Carlos Mariño-Tamayo, Carlos Ramos-Galarza   +2 more
doaj  

Consumo de alcohol y marihuana en universitarios y no universitarios: relación con factores de vulnerabilidad

Quaderns de Psicología, 2019
Este trabajo examinó conductas de consumo de alcohol y marihuana en adultos emergen-tes universitarios y no universitarios. Además, se examinó la relación entre factores de vulnerabilidad (i.e., impulsividad, percepción del riesgo y normas sociales ...
Angelina Pilatti, Yanina Michelini, Gabriela Rivarola Montejano, Melisa Berberian, Mariano Carrizo, Ricardo Marcos Pautassi   +5 more
doaj   +1 more source

Caregiver Reports on the Needs and Experiences of Children Impacted by Parental Incarceration: Results From an Australian Survey

Australian Journal of Social Issues, EarlyView.
ABSTRACT Children experiencing parental imprisonment are known to be among the most overlooked in our community. They often experience multiple and compounding disadvantages, with long‐term consequences, but receive no specialised assistance. Knowledge about these children and their families is lacking in Australia and is required to inform policy ...
Catherine Flynn, Lana Battaglia, Lorana Bartels, Susan Dennison, Susy Harrigan, Lee Huggins, Sofia Grage‐Moore   +6 more
wiley   +1 more source

El derecho a consumir marihuana

Estudios Políticos, 2017
Este artículo aborda el reconocimiento legal que hace el Estado colombiano del derecho ciudadano al consumo de drogas como la marihuana y las condiciones reales para ejercerlo.
Adrián Restrepo Parra
doaj