Results 41 to 50 of about 3,469,349 (355)

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

open access: yesFEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Searching for Suicide Information on Web Search Engines in Chinese

open access: yesJournal of Medical Sciences, 2017
Introduction: Recently, suicide prevention has been an important public health issue. However, with the growing access to information in cyberspace, the harmful information is easily accessible online.
Yen-Feng Lee   +3 more
doaj   +1 more source

Knowledge Engineering in Search Engines [PDF]

open access: yes, 2012
With large amounts of information being exchanged on the Internet, search engines have become the most popular tools for helping users to search and filter this information.
Lin, Yun-Chieh
core   +1 more source

In search of the right literature search engine(s) [PDF]

open access: yes, 2011
*Background* Collecting scientific publications related to a specific topic is crucial for different phases of research, health care and ‘effective text mining’. Available bio-literature search engines vary in their ability to scan
Akhilesh Bajpai   +13 more
core   +2 more sources

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

Children's search engines on the Internet: an analytical study

open access: yesCybrarians Journal
The study focused on children's search engines with the main objective of cataloging the available children's search engines on the Internet and evaluating their strengths and weaknesses. A survey and analytical method were employed to achieve this goal.
Mohamed Al-Farjani
doaj   +1 more source

Measuring the relevance of retrieved images in search engines based on Persian language writing styles

open access: yesIranian Journal of Information Processing & Management, 2022
The aim of this study was to investigate the image retrieval from selected search engines according to the written and semantic features of Persian language and determine their relevance using recall and precision formulas and to identify the most ...
Yaghub Norouzi   +2 more
doaj  

La neutralità difficile

open access: yesAIB Studi, 2018
Il contributo propone una riflessione sul concetto di neutralità sia in riferimento a Internet e ai motori di ricerca, sia alle biblioteche. Nella prima parte, attraverso la presentazione di esempi e il rimando ad alcuni studi sul tema, l’autrice sfata ...
Karen Coyle
doaj   +1 more source

Searching the intranet: Corporate users and their queries [PDF]

open access: yes, 2005
By examining the log files from a corporate intranet search engine, we have analysed the actual web searching behaviour of real users in a real business environment.
Stenmark, Dick
core  

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