Results 131 to 140 of about 720,360 (258)

Phân lập và tuyển chọn vi khuẩn chịu mặn tại huyện Cần Giờ, TP. Hồ Chí Minh có hoạt tính cố định đạm và hòa tan lân

open access: yes
Mục đích của nghiên cứu nhằm phân lập và tuyển chọn vi khuẩn có hoạt tính cố định đạm và hòa tan lân trên môi trường Luria Bertani (LB) có bổ sung muối NaCl 4 ‰ từ các mẫu đất vùng rễ trồng  xoài bị nhiễm mặn ở huyện Cần Giờ, TP. Hồ Chí Minh.
Võ Lê Huyền Trang   +2 more
core   +1 more source

Pesticide MRLs as Trade Barriers: Evidence From Vietnam's Coffee and Rice Exporters

open access: yesAgribusiness, EarlyView.
ABSTRACT As tariffs have declined globally through bilateral and regional trade agreements, food safety standards have emerged as significant determinants of agricultural trade flows. This study examines the impact of maximum residue limits (MRLs) for five pesticides—Azoxystrobin, Chlorpyrifos, Chlorantraniliprole, Clothianidin, and Cyhalothrin—on ...
Nhat Mai Nguyen   +2 more
wiley   +1 more source

Reconfiguring Fresh Produce Supply Chains in Response to Drought Risk: Evidence From the U.S. Broccoli Market

open access: yesAgribusiness, EarlyView.
ABSTRACT Drought is among the most severe and persistent threats to food supply chains, and relocating production to less drought‐prone regions offers a strategy to reduce this risk. This is particularly relevant for fresh vegetables, which are highly water‐intensive, yet drought‐driven reconfiguration strategies remain understudied.
Bingyan Dai   +2 more
wiley   +1 more source

PHÂN LẬP VÀ NHẬN DIỆN VI KHUẨN HÒA TAN LÂN VÀ KALI TỪ MẪU VẬT LIỆU PHONG HÓA ĐÁ HOA CƯƠNG NÚI SẬP, TỈNH AN GIANG [PDF]

open access: yes, 2012
Lân và kali là hai nguyên tố cần thiết cho sự phát triển của cây trồng nhưng phần lớn lượng P và K trong đất ở dạng khó tan, tinh khoáng và cặn khoáng. Tuy nhiên nhiều dòng vi khuẩn trong tự nhiên có khả năng chuyển P và K khó tan thành dạng dễ tan, đặc ...
Cao Ngọc Điệp   +2 more
core  

Robot‐Assisted Measurement of the Critical Micelle Concentration

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
The study introduces (SIMO) smart integrator for manual operations, a robotic platform for precise, repeatable determination of (CMC) critical micelle concentration in surfactants. SIMO reduces standard deviation by 80% compared to manual methods. Surfactant, dye, and diluent selection, robotic protocols, and data handling are detailed.
Vincenzo Scamarcio   +3 more
wiley   +1 more source

Phạm Ngọc Lân, De père inconnu. Récits sur la vie du Viêt Nam... - CR de lecture par Pierre Brocheux

open access: yes, 2015
Phạm Ngọc Lân, De père inconnu. Récits sur la vie du Viêt Nam de la deuxième moitié du XXe siècle, Paris, L’Harmattan, 2015, 441 p., photos et 69 pages de "Notes historico-géographiques et culturelles".
indomemoires
core  

Accelerating Musculoskeletal Robotics Through Parametric Design and 3D‐Printed Flexible Structures

open access: yesAdvanced Intelligent Systems, EarlyView.
Parametric design and flexible 3D printing create muscle‐, tendon‐, ligament‐, and cushion‐like robotic elements from a single thermoplastic polyurethane material. Tuning lattice patterns adjusts regional mechanical properties and enables coordinated multijoint motions in a life‐sized musculoskeletal leg under external suspension, with partial body ...
Shunnosuke Yoshimura   +2 more
wiley   +1 more source

Cha tôi NGND Nguyễn Lân

open access: yes, 2022
Nguyễn Lân Dũng
core  

Food inflation pass‐through from agricultural imports in a small open economy

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract This paper develops a new framework for quantifying cost pass‐through in a small open economy by estimating firm‐level markup responses to agricultural import price shocks. We show theoretically that markup adjustments depend on firms' reliance on imported inputs and demand curvature, generating heterogeneous inflationary effects across firm ...
Minseong Kang, Seungki Lee
wiley   +1 more source

Redistributive land reforms, agricultural productivity, and structural change: New cross‐national evidence

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Large‐scale land reforms constitute a substantial redistribution of wealth and reallocation of agricultural land, which is a major form of asset and production input in developing countries. While land redistribution (from the rich to the poor) remains a highly controversial issue, extensive evidence on its effect is limited.
Devashish Mitra   +3 more
wiley   +1 more source

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