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Research facility · Biskra · Algeria

CRSTRA

In research, CRSTRA stands highest in Physical Sciences (#8,207 of 10,670 worldwide), 2022-now.

crstra.dz/arROR OpenAlex
World rank, 2022-now
#13,403
of 22,385 · #15,856 all time
Rank in Algeria
#58
of 79
Research works
544
▲ 39% vs 2018-21
Citations
3.5k
6.5 per fractional work
Top-10% rate
6.4%
all institutions 10.0%
vs its own fields
0.92×
1.00× is exactly expected
Open access
34%
world 40%
International
23%
world 18%
CRSTRA

What is CRSTRA known for in research?

The fields where it stands highest, 2022-now, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #8,207 of 10,670 5.2%109 #8669

Each strip is that field's whole ranked pool, with the notch where CRSTRA sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no average mark, because the average differs by field (from about 6% in Dentistry to 21% in Economics).

Which fields of science does CRSTRA work in?

In 2022-now, 61% of research at CRSTRA is in Physical Sciences, 31% in Life Sciences. Its largest fields are Agricultural and Biological Sciences (28%), Environmental Science (26%), Engineering (16%). It does 2.2× the world's share of Life Sciences.

Physical Sciences: 124 fractional works · 60.6% of its workEnvironmental Science: 52 fractional works · 25.5% of its workGlobal and Planetary Change: 12 fractional works · 6.0% of its workEnvironmental Engineering: 8 fractional works · 4.0% of its workEcology: 8 fractional works · 4.0% of its workWater Science and Technology: 7 fractional works · 3.5% of its workManagement, Monitoring, Policy and Law: 7 fractional works · 3.2% of its workIndustrial and Manufacturing Engineering: 5 fractional works · 2.4% of its workPollution: 2 fractional works · 1.2% of its workHealth, Toxicology and Mutagenesis: 1 fractional works · 0.7% of its workNature and Landscape Conservation: 1 fractional works · 0.3% of its workEnvironmental Chemistry: 1 fractional works · 0.3% of its workEngineering: 34 fractional works · 16.3% of its workMedia Technology: 7 fractional works · 3.2% of its workCivil and Structural Engineering: 6 fractional works · 3.0% of its workAerospace Engineering: 6 fractional works · 2.8% of its workMechanical Engineering: 4 fractional works · 1.8% of its workElectrical and Electronic Engineering: 2 fractional works · 1.1% of its workBiomedical Engineering: 2 fractional works · 0.8% of its workSafety, Risk, Reliability and Quality: 1 fractional works · 0.7% of its workControl and Systems Engineering: 1 fractional works · 0.6% of its workMechanics of Materials: 1 fractional works · 0.6% of its workComputational Mechanics: 1 fractional works · 0.6% of its workOcean Engineering: 1 fractional works · 0.5% of its workBuilding and Construction: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEarth and Planetary Sciences: 17 fractional works · 8.1% of its workAtmospheric Science: 6 fractional works · 3.0% of its workGeophysics: 4 fractional works · 1.9% of its workGeochemistry and Petrology: 2 fractional works · 1.1% of its workOceanography: 2 fractional works · 1.1% of its workEarth-Surface Processes: 2 fractional works · 1.1% of its workComputer Science: 9 fractional works · 4.2% of its workArtificial Intelligence: 4 fractional works · 2.0% of its workComputer Vision and Pattern Recognition: 3 fractional works · 1.4% of its workSignal Processing: 1 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.4% of its workEnergy: 4 fractional works · 2.1% of its workRenewable Energy, Sustainability and the Environment: 4 fractional works · 2.0% of its workSmaller subfields together: 0 fractional works · 0.0% of its workMaterials Science: 4 fractional works · 2.0% of its workMaterials Chemistry: 2 fractional works · 0.9% of its workPolymers and Plastics: 1 fractional works · 0.4% of its workBiomaterials: 1 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.3% of its workChemistry: 4 fractional works · 1.9% of its workAnalytical Chemistry: 2 fractional works · 0.9% of its workOrganic Chemistry: 1 fractional works · 0.7% of its workSmaller subfields together: 1 fractional works · 0.3% of its workMathematics: 1 fractional works · 0.3% of its workChemical Engineering: 0 fractional works · 0.2% of its workPhysics and Astronomy: 0 fractional works · 0.0% of its workLife Sciences: 63 fractional works · 30.6% of its workAgricultural and Biological Sciences: 58 fractional works · 28.3% of its workPlant Science: 21 fractional works · 10.1% of its workFood Science: 9 fractional works · 4.6% of its workEcology, Evolution, Behavior and Systematics: 9 fractional works · 4.5% of its workInsect Science: 5 fractional works · 2.3% of its workSoil Science: 4 fractional works · 2.0% of its workAnimal Science and Zoology: 3 fractional works · 1.5% of its workForestry: 3 fractional works · 1.4% of its workGeneral Agricultural and Biological Sciences: 2 fractional works · 0.9% of its workAgronomy and Crop Science: 1 fractional works · 0.5% of its workAquatic Science: 0 fractional works · 0.2% of its workBiochemistry, Genetics and Molecular Biology: 3 fractional works · 1.6% of its workMolecular Biology: 1 fractional works · 0.6% of its workGenetics: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.7% of its workNeuroscience: 1 fractional works · 0.5% of its workNeurology: 1 fractional works · 0.5% of its workImmunology and Microbiology: 0 fractional works · 0.1% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.1% of its workHealth Sciences: 10 fractional works · 4.9% of its workMedicine: 7 fractional works · 3.6% of its workAnatomy: 1 fractional works · 0.6% of its workPublic Health, Environmental and Occupational Health: 1 fractional works · 0.6% of its workBiochemistry: 1 fractional works · 0.6% of its workInfectious Diseases: 1 fractional works · 0.4% of its workComplementary and alternative medicine: 1 fractional works · 0.3% of its workEndocrinology, Diabetes and Metabolism: 1 fractional works · 0.3% of its workSmaller subfields together: 2 fractional works · 0.9% of its workNursing: 2 fractional works · 0.9% of its workNutrition and Dietetics: 2 fractional works · 0.9% of its workHealth Professions: 1 fractional works · 0.3% of its workVeterinary: 0 fractional works · 0.2% of its workSmall Animals: 0 fractional works · 0.2% of its workSocial Sciences: 8 fractional works · 3.9% of its workSocial Sciences: 4 fractional works · 1.7% of its workSociology and Political Science: 2 fractional works · 0.8% of its workAnthropology: 1 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.5% of its workEconomics, Econometrics and Finance: 2 fractional works · 0.8% of its workEconomics and Econometrics: 1 fractional works · 0.6% of its workSmaller subfields together: 0 fractional works · 0.2% of its workPsychology: 2 fractional works · 0.8% of its workExperimental and Cognitive Psychology: 1 fractional works · 0.5% of its workSmaller subfields together: 1 fractional works · 0.3% of its workDecision Sciences: 1 fractional works · 0.3% of its workStatistics, Probability and Uncertainty: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workArts and Humanities: 0 fractional works · 0.2% of its workBusiness, Management and Accounting: 0 fractional works · 0.1% of its workALL ITS WORKCRSTRA205fractional works, 2022-now
Life Sciences31%Physical Sciences61%Health Sciences5%Social Sciences4%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 25 fields, with their numbers
    1. Environmental Science5225.5%
    2. Engineering3416.3%
    3. Earth and Planetary Sciences178.1%
    4. Computer Science94.2%
    5. Energy42.1%
    6. Materials Science42.0%
    7. Chemistry41.9%
    8. Mathematics10.3%
    9. Chemical Engineering00.2%
    10. Physics and Astronomy00.0%
    1. Agricultural and Biological Sciences5828.3%
    2. Biochemistry, Genetics and Molecular Biology31.6%
    3. Neuroscience10.5%
    4. Immunology and Microbiology00.1%
    5. Pharmacology, Toxicology and Pharmaceutics00.1%
    1. Medicine73.6%
    2. Nursing20.9%
    3. Health Professions10.3%
    4. Veterinary00.2%
    1. Social Sciences41.7%
    2. Economics, Econometrics and Finance20.8%
    3. Psychology20.8%
    4. Decision Sciences10.3%
    5. Arts and Humanities00.2%
    6. Business, Management and Accounting00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 5.95× its world share, 58 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.30× its world share, 3 worksBiochemistry, Geneti…Immunology and Microbiology: 0.13× its world share, 0 worksImmunology and Micro…Neuroscience: 0.30× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.23× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 0.46× its world share, 0 worksChemical EngineeringChemistry: 1.21× its world share, 4 worksChemistryComputer Science: 0.54× its world share, 9 worksComputer ScienceEarth and Planetary Sciences: 5.18× its world share, 17 worksEarth and Planetary …Energy: 2.27× its world share, 4 worksEnergyEngineering: 1.09× its world share, 34 worksEngineeringEnvironmental Science: 5.14× its world share, 52 worksEnvironmental ScienceMaterials Science: 0.57× its world share, 4 worksMaterials ScienceMathematics: 0.23× its world share, 0 worksMathematicsPhysics and Astronomy: 0.02× its world share, 0 worksPhysics and AstronomyHealth Professions: 0.10× its world share, 1 worksHealth ProfessionsMedicine: 0.19× its world share, 7 worksMedicineNursing: 1.75× its world share, 2 worksNursingVeterinary: 1.59× its world share, 0 worksVeterinaryArts and Humanities: 0.06× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.03× its world share, 0 worksBusiness, Management…Decision Sciences: 0.35× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.37× its world share, 2 worksEconomics, Econometr…Psychology: 0.25× its world share, 2 worksPsychologySocial Sciences: 0.14× its world share, 4 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Agricultural and Biological Sciences, 6.0×. Every wedge is a field page.

All 25 fields, with their numbers
  1. Agricultural and Biological Sciences5.95×58 works
  2. Earth and Planetary Sciences5.18×17 works
  3. Environmental Science5.14×52 works
  4. Energy2.27×4 works
  5. Nursing1.75×2 works
  6. Veterinary1.59×0 works
  7. Chemistry1.21×4 works
  8. Engineering1.09×34 works
  9. Materials Science0.57×4 works
  10. Computer Science0.54×9 works
  11. Chemical Engineering0.46×0 works
  12. Economics, Econometrics and Finance0.37×2 works
  13. Decision Sciences0.35×1 works
  14. Biochemistry, Genetics and Molecular Biology0.30×3 works
  15. Neuroscience0.30×1 works
  16. Psychology0.25×2 works
  17. Pharmacology, Toxicology and Pharmaceutics0.23×0 works
  18. Mathematics0.23×0 works
  19. Medicine0.19×7 works
  20. Social Sciences0.14×4 works
  21. Immunology and Microbiology0.13×0 works
  22. Health Professions0.10×1 works
  23. Arts and Humanities0.06×0 works
  24. Business, Management and Accounting0.03×0 works
  25. Physics and Astronomy0.02×0 works

Who are the top researchers at CRSTRA?

Ranked on the quality score, Aissam Gaagai, Hani Amir Aouissi and Adil Mihoub lead among researchers whose main affiliation is CRSTRA.

  1. 1 Aissam Gaagai Algeria · #365,789 worldwide 842 citations · 33 works
  2. 2 Hani Amir Aouissi Algeria · #1,405,322 worldwide 1k citations · 60 works
  3. 3 Adil Mihoub Algeria · #1,730,741 worldwide 901 citations · 64 works
  4. 4 Saïfi Merdas Algeria · #2,083,247 worldwide 180 citations · 24 works
  5. 5 Djamel Eddine Boukhari Algeria · #2,731,648 worldwide 66 citations · 21 works
  6. 6 Ali Rami Algeria · #3,247,410 worldwide 388 citations · 19 works
  7. 7 Samir Boudibi Algeria · #3,347,999 worldwide 279 citations · 16 works
  8. 8 Abdelkader Mendas Algeria · #3,722,262 worldwide 350 citations · 20 works
  9. 9 Ahmed Nourani Algeria · #3,736,627 worldwide 136 citations · 19 works
  10. 10 Mohamed Seif Allah Kechebar Algeria · #3,877,630 worldwide 140 citations · 17 works
All ranked researchers at CRSTRA

What are the most cited papers from CRSTRA?

The most cited paper from CRSTRA is "Mechanical properties of date palm fibres and concrete reinforced with date palm fibres in hot-dry climate" (Abdelouahed Kriker, G. Debicki, A. Bali et al., 2004), with 312 citations. Next come "The complex history of the olive tree: from Late Quaternary diversification of Mediterranean lineages to primary domestication in the northern Levant" (287) and "Integration of MultiCriteria Decision Analysis in GIS to develop land suitability for agriculture: Application to durum wheat cultivation in the region of Mleta in Algeria" (256).

Most cited papers
#PaperReleasedCitations
1 Mechanical properties of date palm fibres and concrete reinforced with date palm fibres in hot-dry climate Abdelouahed Kriker, G. Debicki, A. Bali et al. · Cement and Concrete Composites 15 Dec 2004 312
2 The complex history of the olive tree: from Late Quaternary diversification of Mediterranean lineages to primary domestication in the northern Levant Guillaume Besnard, Bouchaïb Khadari, María Royo Navascués et al. · Proceedings of the Royal Society B Biological Sciences Open access 6 Feb 2013 287
3 Integration of MultiCriteria Decision Analysis in GIS to develop land suitability for agriculture: Application to durum wheat cultivation in the region of Mleta in Algeria Abdelkader Mendas, A. Delali · Computers and Electronics in Agriculture 10 Mar 2012 256
4 Remote Sensing Techniques for Salt Affected Soil Mapping: Application to the Oran Region of Algeria Abdellatif Dehni, Mourad Lounis · Procedia Engineering Conference paperOpen access 2012 236
5 Adsorption of Pharmaceutical Pollutants from Water Using Covalent Organic Frameworks Abdelkarim Mellah, Soraia P. S. Fernandes, Ramón Rodríguez et al. · Chemistry - A European Journal 12 Jun 2018 164
All 60 most cited papers, with filters and sorting

Which keywords describe research at CRSTRA?

By fractional works in 2022-now, weighted toward what it does more of than the world: Remote Sensing, Climate Change, Land Use Change, Sustainability, Antioxidant, Health Benefits, Adaptation and Support Vector Machines.

▲ more of its work than of the world's◆ about the world's share▼ less than the world's

Size is fractional works in 2022-now in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Remote Sensing36▲ 14×24 topics
  2. Climate Change31▲ 5.5×47 topics
  3. Sustainability15▲ 3.0×19 topics
  4. Machine Learning13▲ 1.85×12 topics
  5. Land Use Change10▲ 17×4 topics
  6. Antioxidant10▲ 6.9×16 topics
  7. Environmental Impact8▲ 2.3×26 topics
  8. Health Benefits8▲ 12×9 topics
  9. Adaptation8▲ 13×4 topics
  10. Support Vector Machines8▲ 12×4 topics
  11. Biodiversity Conservation7▲ 9.4×5 topics
  12. Smallholder Farmers7▲ 16×4 topics
  13. Feature Extraction7▲ 7.4×5 topics
  14. Hyperspectral Imaging7▲ 13×3 topics
  15. Medicinal Plants7▲ 8.7×10 topics
  16. Antioxidant Activity7▲ 5.2×12 topics
  17. Global Change7▲ 12×5 topics
  18. Pest Management7▲ 38×3 topics
  19. Diabetes6▲ 6.3×2 topics
  20. Hyperspectral6▲ 37×2 topics
  21. Ecosystem Services6▲ 7.9×6 topics
  22. GIS6▲ 41×3 topics
  23. Therapeutic6▲ 32×3 topics
  24. Camel Milk6▲ 213×1 topic
  25. Nutritional6▲ 213×1 topic
  26. Urban Heat Island6▲ 32×2 topics
  27. Classification6▲ 6.3×2 topics
  28. Invasive Species6▲ 6.5×11 topics
  29. Hydrological Modeling5▲ 11×4 topics
  30. Biomass Estimation5▲ 16×2 topics
  31. Climate5▲ 26×2 topics
  32. Global Warming5▲ 6.0×6 topics
  33. Change Detection5▲ 34×1 topic
  34. Image Analysis5▲ 25×1 topic
  35. Phenology5▲ 34×1 topic
  36. Vegetation Monitoring5▲ 34×1 topic
  37. Chemical Composition5▲ 25×3 topics
  38. Wastewater Treatment5▲ 9.6×6 topics
  39. Anticancer Activity5▲ 66×3 topics
  40. Genome Sequencing5▲ 14×6 topics

Which research topics does CRSTRA publish most on?

By volume in 2022-now: Animal Diversity and Health Studies, Remote Sensing in Agriculture, Remote-Sensing Image Classification and Date Palm Research Studies.

Animal Diversity and Hea…6Animal Diversity and Health Studies: 6 fractional worksRemote Sensing in Agricu…5Remote Sensing in Agriculture: 5 fractional worksRemote-Sensing Image Classification: 5 fractional worksDate Palm Research Studies: 4 fractional worksRemote Sensing and Land Use: 4 fractional worksSoil and Land Suitability Analysis: 4 fractional worksAgriculture and Rural Development Research: 4 fractional worksLand Use and Ecosystem S…3Land Use and Ecosystem Services: 3 fractional worksAfrican Botany and Ecology Studies: 3 fractional worksFlood Risk Assessment and Management: 3 fractional works
Food ScienceEcologyMedia TechnologyPlant Science5 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Animal Diversity and Health Studies Food Science 6 works
  2. 2 Remote Sensing in Agriculture Ecology 5 works
  3. 3 Remote-Sensing Image Classification Media Technology 5 works
  4. 4 Date Palm Research Studies Plant Science 4 works
  5. 5 Remote Sensing and Land Use Atmospheric Science 4 works
  6. 6 Soil and Land Suitability Analysis Management, Monitoring, Policy and Law 4 works
  7. 7 Agriculture and Rural Development Research Ecology, Evolution, Behavior and Systematics 4 works
  8. 8 Land Use and Ecosystem Services Global and Planetary Change 3 works
  9. 9 African Botany and Ecology Studies Forestry 3 works
  10. 10 Flood Risk Assessment and Management Global and Planetary Change 3 works

How open and international is its research?

Against the world's own shares: the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available34.5%not open65.5%

World: 40% of research is openly available.

with international co-authors23.1%domestic only76.9%

World: 18% is written across borders.

How has CRSTRA's research output changed?

Output in 2022-2025 was 39% higher than in 2018-2021.

still counting1990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is CRSTRA as a percentage of every work published that year, 0.00086% in 2024.

still counting0.00050%0.0010%CRSTRA0.00081% in 202519801990200020102020

Fractional works of CRSTRA over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year, against all institutions in the same year.

still counting5%10%15%all institutions10.0% in 2025CRSTRA8.0% in 20252020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 12.3% in 2012.

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CRSTRA on Science Explorer

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