Results 21 to 30 of about 37,653 (264)
Análisis de la categorización del estado de conservación de las orquídeas en el Perú:
Aunque la familia de las orquídeas es uno de los grupos de plantas mejor representados en los listados de conservación a nivel mundial, aun este número de representantes es pequeño considerando su alta diversidad y vulnerabilidad. Esto es particularmente
Carlos Martel
doaj +1 more source
Do CITES trade restrictions work? Some evidence from the markets for sawfish trophies
The durability of animal parts that are collected and traded as trophies has an impact on species sustainability, especially when animals are slow-growing, have low fecundity, or are particularly vulnerable to capture.
Gómez-Rodríguez Santiago +1 more
doaj +1 more source
The wisdom of citing scientists [PDF]
This Brief Communication discusses the benefits of citation analysis in research evaluation based on Galton's “Wisdom of Crowds” (1907). Citations are based on the assessment of many which is why they can be considered to have some credibility. However, we show that citations are incomplete assessments and that one cannot assume that a high number of ...
Lutz Bornmann, Werner Marx
openaire +3 more sources
CITES as an International Instrument Against Pandemics that Threaten Human Life
The COVID-19 pandemic caused by the SARS-CoV-2 virus requires revisiting many global issues, One of these being is the wildlife trade and its adverse effects.
Ali Kerem Kayhan
doaj +1 more source
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele +19 more
wiley +1 more source
Power converters are the basic elements of any power electronics system in many areas and applications. Among them, the push–pull converter topology is one of the most widespread due to its high efficiency, versatility, galvanic isolation, reduced number
Francisco José Vivas +2 more
doaj +1 more source
The poachers adopted various cunning ways to modify the wildlife materials before commercialization. Thus, the confiscated wildlife materials is often a crime with no eyewitness and difficult for identification.
Vikas Kumar +7 more
doaj +1 more source
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source
Climate change and urbanization are intensifying the urban heat island effect and negatively impacting outdoor thermal comfort in cities. Innovative planning strategies are required to design more livable and resilient urban spaces.
Victoria Patricia Lopez-Cabeza +2 more
doaj +1 more source
ABSTRACT Background PIK3CA‐related overgrowth spectrum (PROS) includes several rare overgrowth disorders resulting from somatic gain‐of‐function mutations in PIK3CA. Despite treatment advances, including the recent approval of alpelisib for PROS in the United States, literature detailing the patient experience with PROS is limited.
Vamsi Bollu +8 more
wiley +1 more source

