منابع مشابه
Using Surface Surveillance to Help Reduce Taxi Delays*
Taxi delay is the largest of all aviation movement delays. However, taxi-out delays have not received attention equal to that focused on airborne delays because taxi-out delays often result from downstream problems. Also, until recently, there was no practical means of tracking surface movements. New surface surveillance technology will revolutionize surface management by providing data for pla...
متن کاملDNA and RNA interference mechanisms by CRISPR-Cas surveillance complexes.
The CRISPR (clustered regularly interspaced short palindromic repeats)-Cas (CRISPR-associated) adaptive immune systems use small guide RNAs, the CRISPR RNAs (crRNAs), to mark foreign genetic material, e.g. viral nucleic acids, for degradation. Archaea and bacteria encode a large variety of Cas proteins that bind crRNA molecules and build active ribonucleoprotein surveillance complexes. The evol...
متن کاملOne-Step piggyBac Transposon-Based CRISPR/Cas9 Activation of Multiple Genes
Neural cell fate is determined by a tightly controlled transcription regulatory network during development. The ability to manipulate the expression of multiple transcription factors simultaneously is required to delineate the complex picture of neural cell development. Because of the limited carrying capacity of the commonly used viral vectors, such as lentiviral or retroviral vectors, it is o...
متن کاملUnderstanding taxi travel patterns
Taxis play important roles in modern urban transportation systems, especially in mega cities. While providing necessary amenities, taxis also significantly contribute to traffic congestion, urban energy consumption, and air pollution. Understanding the travel patterns of taxis is thus important for addressing many urban sustainability challenges. Previous research has primarily focused on exami...
متن کاملNetwork design: taxi planning
The effect of managing aircraft movements on the airport's ground is an important tool that can alleviate the delays of flights, specially in peak hours or congested situations. Although some strategic design decisions regarding aeronautical and safety aspects have a main impact on the airport's topology, there exists a number of other additional factors that must be evaluated according to the ...
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ژورنال
عنوان ژورنال: The CRISPR Journal
سال: 2020
ISSN: 2573-1599,2573-1602
DOI: 10.1089/crispr.2020.29081.twi