Results 31 to 40 of about 418,092 (185)

Variation Analysis of Cereals Heavy Metals Limit Standards of CAC, EU, USA, and China(CAC、欧盟、美国与中国粮食中重金属限量标准的差异分析) [PDF]

open access: yesShipin kexue jishu xuebao, 2019
Heavy metal pollution is an important aspect of cereal quality and safety. Countries and organizations all over the world attach great importance to the control of heavy metals in cereals.Through the comparison and analysis of cereal heavy metals limit ...
YANG Weimin(杨卫民)   +3 more
doaj   +1 more source

Radiographic identification and description of the equine middle conchal sinus (ethmoidal sinus): Implications for diagnosing middle conchal sinusitis

open access: yesEquine Veterinary Journal, EarlyView.
Abstract Background The middle conchal sinus (MCS) (ethmoidal sinus) remains one of the least understood equine paranasal compartments. Despite recognition of its involvement in sinonasal disease, disorders of the MCS often remain underdiagnosed in the absence of computed tomographic (CT) imaging due to limited anatomical understanding and challenges ...
J.‐B. Pavard   +3 more
wiley   +1 more source

Intangible drivers of tolerance shape human–elephant coexistence in Southwest China

open access: yesPeople and Nature, EarlyView.
Abstract Southwest China is home to a small but rapidly expanding population of Asian elephants (Elephas maximus), whose growth has intensified conflicts with people living in shared landscapes. These conflicts result in substantial economic losses and occasional human casualties. This coexistence paradox—where conservation success leads to significant
Xiaoyu Yu   +4 more
wiley   +1 more source

Winter Track Survey of the Amur Tiger (Panthera tigris altaica) in the Southwest Primorsky Province of Russia 俄罗斯滨海边疆区西南部东北虎 (Panthera tigris altaica) 冬季足迹调查

open access: yesWildlife Letters, EarlyView.
In the winter of 2021/2022, a winter track survey revealed 43–46 tigers (without cubs) in 5.4 thousand km2 of suitable habitats in the Southwest Primorsky Province of Russia. In the same period, a network of camera traps registered 54 adult/subadult tigers here.
Yury Darman, Dina Matiukhina
wiley   +1 more source

Changes of Potential Suitable Areas for Lynx Under Climate Change in Mohe Area, Daxing'anling Mountains, China 气候变化下中国大兴安岭漠河地区猞猁潜在适宜区的变化

open access: yesWildlife Letters, EarlyView.
Climate change drives shifts in suitable habitats for Eurasian lynx and its prey (hare, roe deer) in Mohe, Daxing'anling Mountains. Under RCP scenarios, moderate warming (RCP4.5) promotes substantial habitat expansion, while high‐emission conditions (RCP8.5) lead to strong expansion in the 2050s but slower gains and partial contraction by the 2070s ...
Binglian Liu   +5 more
wiley   +1 more source

Anecdotes or Ecological Patterns: Symbiotic Foraging Behaviors in Coyotes and Badgers 奇特模式还是生态格局: 郊狼与獾的共生觅食行为

open access: yesWildlife Letters, EarlyView.
Using a 3‐year, broad‐scale camera‐trap network in western Kansas, we tested whether coyotes and American badgers exhibit spatiotemporal patterns consistent with coordinated hunting. Despite high diel activity overlap, detection‐conditioned co‐detections occurred far less frequently than expected under independence, and short‐term temporal sequencing ...
Ty J. Werdel   +3 more
wiley   +1 more source

核药厂衰变池废水及周边水样中14C的快速筛查法

open access: yesFushe yanjiu yu fushe gongyi xuebao
为快速筛查对象水体中14C的存在与否,并提供定量测量结果,采用液闪计数区域优化的方法,结合内标法确定猝灭效应下的计数效率,实现了样品中14C活度浓度的快速准确分析,探测下限为1.8 Bq/L。应用于某核药厂衰变池及周边环境水样中14C活度浓度的分析,其中3个样品活度浓度低于探测下限,其余样品活度浓度分布在38~1 332 Bq/L。自制活度浓度已知的样品验证了该方法的准确性,测量结果相对参考值最大偏差仅1.1%。
戈 立新, 韩 刚, 赵 超
doaj   +1 more source

Movement and Space Use Patterns of the Beale's Eyed Turtle (Sacalia bealei) Suggest Sensitivity to Environmental Changes and Poaching 比氏眼斑龟 (Sacalia bealei) 的活动与空间利用模式揭示其对环境变化及盗猎的敏感性

open access: yesWildlife Letters, EarlyView.
Using radiotelemetry, we found that the movement and home range of the endangered Sacalia bealei varied significantly across reproductive classes and seasons, with males exhibiting greater movement than females during wet and mating seasons. The species exhibits strong aquatic dependence, favoring deep pools interspaced among riffle‐pool sequences ...
Wing Sing Chan   +3 more
wiley   +1 more source

Using Harvest Data to Assess Factors Influencing Regional Population Declines of Muskrats (Ondatra zibethicus) 利用捕获数据评估影响麝鼠 (Ondatra zibethicus) 区域种群数量下降的相关因素

open access: yesWildlife Letters, EarlyView.
Reported annual per‐capita harvest of muskrats (PCHM) decreased as wetland complexity (total number of wetland patches) decreased in 13 state and federal wetland areas in the Midwest, USA. Our results support the hypothesis that regional‐scale declines in the abundance of muskrats are likely associated with the losses to wetland habitats throughout the
Tim L. Hiller   +5 more
wiley   +1 more source

Scaling from microsite to landscape to resolve litter decomposition dynamics in globally extensive drylands

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop   +8 more
wiley   +1 more source

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