الثلاثاء، 17 أبريل 2018
الجمعة، 13 أبريل 2018
محركات البحث الأجنبية
research resources
100 مصدر للبحث عن مصادر المعلومات الأجنبية في كافة التخصصات العلمية.
iSeek
is an excellent targeted search engine, designed especially for students,
teachers, administrators, and caregivers. Find authoritative, intelligent, and
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With
more than 1 billion documents, web pages, books, journals, newspapers, and
more, RefSeek offers authoritative resources in just about any subject, without
all of the mess of sponsored links and commercial results.
The
Virtual Learning Resources Center has created a custom Google search, featuring
only the best of academic information websites. This search is curated by
teachers and library professionals around the world to share great resources
for academic projects.
This
scholarly search engine and web directory was created just for college
students. The websites in this index are selected by librarians, teachers, and
educational consortia. Be sure to check out their research guides for history,
health, nursing studies, criminal justice, and more.
- BUBL LINK:
If
you love the Dewey Decimal system, this Internet resource catalog is a great
resource. Search using your own keywords, or browse subject areas with Dewey
subject menus.
Check
out the DLC to find international literature including free and open access
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the OAIster database to find millions of digital resources from thousands of
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Find
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The
Infomine is an incredible tool for finding scholarly Internet resource
collections, especially in the sciences.
Microsoft’s
academic search engine offers access to more than 38 million different
publications, with features including maps, graphing, trends, and paths that
show how authors are connected.
Google’s
super cool search tool will allow you to find searches that correlate with
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Using
expert-level knowledge, this search engine doesn’t just find links; it answers
questions, does analysis, and generates reports.
Meta Search
Want
the best of everything? Use these meta search engines that return results from
multiple sites all at once.
Find
the best of all the major search engines with Dogpile, an engine that returns
results from Google, Yahoo!, and Bing, with categories including Web, Images,
Video, and even White Pages.
MetaCrawler
makes it easy to "search the search engines," returning results from
Google, Yahoo!, and Bing.
Check
out the mother of all search engines to pin down the best resources on the web.
Mamma even searches Twitter and job postings!
Databases and Archives
Resources
like the Library of Congress have considerable archives and documents
available, and many of them have taken their collections online. Use these
search tools to get access to these incredible resources.
In
this incredible library, you’ll get access to searchable source documents,
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Find
the best of what Britain has to offer in the Archives Hub. You’ll be able to
search archives from almost 200 institutions from England, Scotland, and Wales.
Check
out this resource for access to the National Archives. Find online, public
access to find historic documents, research, government information, and more
in a single search.
Cornell
University’s arXiv.org offers open access to a wealth of e-prints in math,
science, and related subjects. Search this resource to find what you need among
756,133 documents and counting.
An
initiative of the Historical Centre Overijssel, Archivenet makes it easy to
find Dutch archives and more.
Explore
the history of space in this historical archive from NASA, highlighting space
history and manned missions.
A
service of the U.S. Department of Agriculture, you can find global information
for agriculture in the National Agricultural Library.
Get
access to the considerable resources of the Smithsonian Institution through the
Research Information System, a great way to search more than 7.4 million
records from the Smithsonian’s museums, archives, and libraries.
Explore
the British Library catalogues, printed materials, digital collections, and even
collection blogs for a wealth of resources.
As
the center of intelligence, the CIA has certainly done its job with The World
Factbook, offering information on major reference information around the world.
History, people, government, economy, and more are all covered in this online
publication.
Use
this database to find information from the legislatures of all 50 U.S. states,
DC, and the Territories. You can look up bills, statutes, legislators, and more
with this excellent tool.
In
the Directory of Open Access Repositories, you can search through freely
academic research information with more directly useful resources.
Search
through the Catalog of U.S. Government Publications to find descriptive records
for historical and current publications, with direct links where available.
Books & Journals
Instead
of heading to the library to bury your face in the stacks, use these search
engines to find out which libraries have the books you need, and maybe even
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Find
items from 10,000 libraries worldwide, with books, DVDs, CDs, and articles up
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millions for free and others you can preview to find out if they’re what you’re
looking for.
For
scientific information only, Scirus is a comprehensive research tool with more
than 460 million scientific items including journal content, courseware, patents,
educational websites, and more.
Research
articles and published sources with HighBeam Research’s tools. You’ll not only
be able to search for what you’re looking for, you can also choose from
featured research topics and articles. Note: HighBeam is a paid service.
Vadlo
is a life sciences search engine offering protocols, tools, and powerpoints for
scientific research and discovery. Find what you’re looking for, and then stick
around to check out the forums.
Find
the world’s classic literature, open e-books, and other excellent open and free
resources in the Open Library. You can even contribute to the library with
information, corrections to the catalog, and curated lists.
In
this free, powerful scientific search engine, you can discover journals,
articles, research reports, and books in scientific publications.
Check
out Google Scholar to find only scholarly resources on Google. The search
specializes in articles, patents, and legal documents, and even has a resource
for gathering your citations.
Search
Bioline International to get connected with a variety of scientific journals.
The search is managed by scientists and librarians as a collaborative initiative
between Bioline Toronto and and the Reference Center on Environmental
Information. It is a great tool for students enrolled in both science and
environmental management classes.
Search
through SpringerLink for electronic journals, protocols, and books in just
about every subject possible. You can also browse publications by collection
and content type.
When
you need top-quality journal writings for free, the Directory of Open Access
Journals is a great place to check out. You’ll get access to a searchable
journal of full-text quality controlled scientific and scholarly journals.
- Jurn:
In
this curated academic search engine, you’ll get results from over 4,000 free
scholarly e-journals in the arts and humanities.
Science
With
a focus on science, these academic search engines return all-science, all the
time.
In
this science search engine and directory, you’ll find the best of what the
science web has to offer. Browse by category, search by keyword, and even add
new sites to the listings.
Register
with PerkinElmer to check out the Chem BioFinder and look up information about
chemicals, including their properties and reactions.
Biology
Browser is a great resource for finding research, resources, and information in
the field of biology. You can also check out their Zoological Record and BIOSIS
Previews.
Athenus
is an authority on science and engineering on the Web, sharing a directory
and full-featured web search.
Use
SciCentral as your gateway to the best sources in science. This site has a
literature search, journals, databases, and other great tools for finding what
you need.
Strategian
is a great place to find quality information in all fields of science. Featured
resources include free full-text books, patents, and reports, as well as
full-text journal and magazine articles, plus a special collection of Vintage
Biology with important articles and books in biology.
In
this government science portal, you can search more than 50 databases and 2,100
selected websites from 12 federal agencies. This is an incredible resource for
millions of pages of U.S. government science information.
This
organization for nuclear research serves up a great search and directory for
experiments, archives, articles, books, presentations, and so much more within
their documents.
Through
the Analytical Sciences Digital Library, you’ll find peer-reviewed, web-based
educational resources in analytical sciences, featuring a variety of formats
for techniques and applications.
Use
WorldWideScience.org as a global science gateway, offering excellent search
results in the sciences, and even the option to select specific databases and
find resources in your own language.
Math & Technology
Keep
your results limited to only the best math and technology resources by using
these search engines.
Check
out the MathGuide subject gateway to find online information sources in
mathematics. The catalog offers not just a search, but a database of high
quality Internet resources in math.
Zentralblatt
MATH’s online database has millions of entries from thousands of serials and
journals dating back as far as 1826. Nearly 35,000 items were added in 2012
alone.
- Math WebSearch:
This
semantic search engine allows users to search with numbers and formulas instead
of text.
- Current Index to Statistics:
In
this bibliographic index, you’ll find publications in statistics, probability,
and related fields. There are more than 160 preferred journals, plus selected
articles from 1,200 more and 11,000 statistics books to draw from in this
search.
This
database was made for scientists and engineers by the Institution of
Engineering and Technology. You’ll find nearly 13 million abstracts and
research literature, primarily in the fields of physics and engineering.
Get
searchable access to the Scientific Research Digital Library by using the
CiteSeerX website.
Find
more than 3 million references to journal articles, conference papers, and
technical reports in computer science with this bibliography collection.
Still
in experimental demonstration, Citebase Search is a resource for searching
abstracts in math, technology, and more.
Social Science
Researchers
working in the fields of psychology, anthropology, and related subjects will
find great results using these search engines.
Check
out this searchable archive to find extensive psychology and brain science
articles.
In
this research network, you can find a wide variety of social science research
from a number of specialized networks including cognitive science, leadership,
management, and social insurance.
Find
a journal with Psycline’s journal and article locator, a tool that offers
access to more than 2,000 psychology and social science journals online.
The
Thomson Reuters Social Sciences Citation Index is a paid tool, but well worth
its cost for the wealth of relevant articles, search tools, and thorough
resources available.
Search
the languages of the world with Ethnologue, offering an encyclopedic reference
of all the world’s known living languages. You’ll also be able to find more
than 28,000 citations in the Ethnologue’s language research bibliography.
Use
this site from the University of Amsterdam to browse sociological subjects
including activism, culture, peace, and racism.
Check
out this guide to find all of the sociological resources you’ll need on the
internet. The SocioWeb offers links to articles, essays, journals, blogs, and
even a marketplace.
With
this custom Google search engine, you can find open access articles about
archaeology.
Search
or browse the Encyclopedia of Psychology to find basic information, and even
translations for information about psychology careers, organizations,
publications, people, and history.
Through
this database, you can get access to anthropology reviews, look up publishers,
and find resources available for review.
This
anthropological online search includes both general search of 4,000 periodicals
held in The British Museum Anthropology Library as well as Royal
Anthropological Institute films.
Political
Information is a search engine for politics, policy, and political news with
more than 5,000 carefully selected websites for political information.
History
Find
awesome resources for history through these search engines that index original
documents, sources, and archives.
Use
the LUNA Browser to check out David Rumsey’s Map Collection with more than
30,000 images, searchable by keyword.
Find
excellent sources for women’s history with the Genesis dataset and extensive
list of web resources.
Get
access to historical military records through Fold3, the web’s premier
collection of original military records and memorials.
Use
the Internet Modern History Sourcebook to find thousands of sources in modern
history. Browse and search to find full texts, multimedia, and more.
Use
the history guide from the Library of Anglo-American Culture and History for a
subject catalog of recommended websites for historians, with about 11,000 to
choose from.
History
Buff offers an online newspaper archive, reference library, and even a
historical panoramas section in their free primary source material collection.
University
of Houston’s Digital History database offers a wealth of links to textbook,
primary sources, and educational materials in digital history. The database has
multimedia, an interactive timeline, active learning, and resources for
teachers.
The
Internet Ancient History Sourcebook is a great place to study human origins, with
full text and search on topics including Mesopotamia, Rome, the Hellenistic
world, Late Antiquity, and Christian origins.
History
and Politics Out Loud offers a searchable archive of important recordings
through history, particularly politically significant audio materials.
In
this tool for collaborative education and research, students can learn history
by researching, writing, and publishing, creating a collection of historical
articles in U.S. history that can be searched for here by scholars, teachers,
and the general public.
Through
American History Online, you can find and use primary sources from historical
digital collections.
Business and Economics
Using
these search engines, you’ll get access to business publications, journal
articles, and more.
Search
the Business Publications Search Engine for access to business and trade
publications in a tool that offers not just excellent browsing, but a focused
search as well.
Maintained
by the International Institute of Social History, Amsterdam, this library
offers historians excellent content for learning about economics, business, and
more.
Visit
EconLit to access more than 120 years of economics literature from around the
world in an easily searchable format. Find journal articles, books, book
reviews, articles, working papers, and dissertations, as well as historic
journal articles from 1886 to 1968.
On
this site, you can learn about and find access to great resources in economic
research.
Find
research in economics and related sciences through the RePEc, a
volunteer-maintained bibliographic database of working papers, articles, books,
and even software components with more than 1.2 million research pieces.
Perfect
for researching companies, Corporate Information offers an easy way to find
corporate financial records.
Economists
will enjoy this excellent site for finding economics resources, including jobs,
courses, and even conferences.
Easily
look up stocks with this search engine to monitor the stock market and your
portfolio.
The
SEC requires certain disclosures that can be helpful to investors, and you can
find them all here in this helpful, next-generation system for searching
electronic investment documents.
Other Niches
Find
even more specialized information in these niche search engines.
From
the U.S. National Library of Medicine, PubMed is a great place to find
full-text medical journal articles, with more than 19 million available.
Find
reliable, authoritative information for legal search with the Lexis site.
Visit
this database to find more than 6,300 records relating to human health in the
circumpolar region.
In
the ERIC Collection, you’ll find bibliographic records of education literature,
as well as a growing collection of full-text resources.
A
service of the U.S. National Library of Medicine, Medline Plus offers a
powerful search tool and even a dictionary for finding trusted, carefully
chosen health information.
Search
Artcyclopedia to find everything there is to know about fine art, with 160,000
links, 9,000 artists listed, and 2,900 art sites indexed.
Reference
Get
connected with great reference material through these search tools.
Use
this online dictionary and thesaurus to quickly find definitions and synonyms.
Through
References.net, you can get connected with just about every reference tool
available, from patents to almanacs.
Need
the right thing to say? Check out Quotes.net to reference famous words from
famous people.
Check
out the Literary Encyclopedia to get access to reference materials in
literature, history, and culture.
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بعض الجداول والأشكال الخاصة بدراسة الإنتاج العلمي المنشور حول فيروس كورونا بقاعدة بيانات شبكة العلوم Web of Science: دراسة ببليومترية.
بعض الجداول والأشكال الخاصة بدراسة الإنتاج العلمي المنشور حول فيروس كورونا بقاعدة بيانات شبكة العلوم Web of Science : دراسة ببليومتري...
