Slovenija
Serbia
Hrvatska
Bosnia
Prodajni program
Laboratorijski aparati
Biomedicina
Biotek (Agilent)
Cellink
Covaris
Illumina
Minerva
Nikon
Zaštita od COVID 19
ZAŠTITNE MASKE
RUKAVICE
DEZINFICIJENSI
TESTOVI COVID 19 ZA NOS I USTA
BRISEVI
IGLE
OPREMA ZA ZAŠTITU
ZAŠTITNA ODJEĆA
Laboratorijski potrošni materijal, aparati i kemikalije
Laboratorijski potrošni materijal i aparati
Schott Duran
La-Pha-Pack, vijale,...
Analytical measurement and testing
Viscosity determination
Viscosimeter
Analytical instruments and systems
Fluoride determination
Melting point determination
Balances
Accessories
Analytical balances
Moisture balances
Other balances
Pocket balances
Precision balances
Weights
Climate and environment measurement
Hygrometer
Special climate meters
Conductivity measurement
electrodes
portable devices
Solutions
Table devices
Density determination
Density meters
Density meter, Pycnometer
Viscosimeter
Material testing
Force measurement
Hardness measurement
Surface analysis
Thickness measurement
Multiparameter measurement
Devices
oxygen measurement
Devices
electrodes and accessories
pH-measurement
Buffer solutions
Electrode accessories
Electrodes
Paper, chopstick
portable devices
Table devices
Thermometers
Laboratory thermometers
Surface, Insertion thermometers
Temperature data logger
Temperature meters
Temperature-Humidity logger
Timing
Clocks
stopwatch
Timers
Chromatography
Gas chromatography
Gas generators
GC columns
GC consumables
GC reagents
Liquid chromatography
Glass columns
HPLC columns
Solvent storage/handling
NMR/EPR
Accessories
Tubes
Sample preparation
SPE
Syringe filters
Syringes
Disposable syringes
Microlitre Syringes
Thin-layer chromatography
Accessories
Chambers
Detection
Plates
Vials
Accessories
NMR tubes
Vials, Septa
Cleanroom, Cleaning and sterilisation
Cleaning implements
Brushes
Draining racks
Wipes, cloths
Cleanroom
Cleaning
Documentation and adhesive tapes
Eye protection
Facility
Hand protection
Protective clothing
Disinfection
Compressed air spray
for Instruments
for surfaces
Screen cleaners
Steam sterilisers - Autoclaves
Accessories
Instruments
Sterile packaging
Ultrasonic cleaners
Instruments
Ultrasonic cleaners
Washers, disinfectors
Accessories
Instruments
Distillation, separation, filtration
Distillation, synthesis
Components for Extraction
Components for reaction and distillation
Distillation-Accessories
Dropping Funnels
Flasks with NS joint neck
Flat ground flange reaction vessels
Gas wash bottles
Ground joints, attachable
KPG stirrer and bearings
Laboratory reactors
NS joints accessories
Reflux condenser
standard ground stoppers
Stopcocks and Valves
Tubing adapters
Filtration
Dialysis tubes
Filter paper, qualitative
Filter paper, quantitative
Filtration apparatus
Glass-fibre filters
In-Line filter
Membrane filters
Microfilter plates
Syringe filters
Rotary evaporators
Accessories
Instruments
Separating, centrifuging
Benchtop centrifuges
Centrifuge tubes
Minicentrifuges
Environmental-, soil-, water-, food analysis
Sample analysis
Oil Testing
BOD
COD
Elemental analysis
Extraction
Kjeldahl
Milk analysis
Photometers
Special distillation
Turbidity
Sample preparation
Air sampling and analysis
for standard analysis
Trace analysis
Accessories
Tubes
Water purification
Distillation
Pure and ultra-pure water
General laboratory consumables
General laboratory aids
Accessories for electrical device
Bags, Foils
Batteries
Documenting
Greases
Labels
Laboratory jacks
Stands, Fittings
Heating
Beaker tongs
Burners
Drying
Tripod
Tools
Forceps
Glass working
Knives, Scissors
Scoops
Spoons, Spatulas
Workshop tools
Tubing
Adapters, Clips, Clamps
Plastic
Rubber
Stoppers
Tubing/Gas
Vessels
Aspirators and Carboys
Baskets
Beakers
Buckets
Containers
Crucibles
Cylinders
Dishes
Flasks
Funnels
Measuring jugs
Narrow-mouth bottles
Reagent bottles
Spray, dropping bottles
Square bottles
Stoppers
Test tubes
Transport boxes
Tube racks
Wide mouth kegs
Wide-mouth bottles
Heating and cooling technology
Cooling
Biobanking
Cryogenic accessories
Cryogenic boxes
Cryogenic racks
Cryogenic storage tanks
Cryogenic tubes
Dewar flasks
Ice machines
Liquid nitrogen-Accessories
Low and Ultra low temperature freezers
Refrigerators and Freezers
Refrigerators and Freezers ex protected
Transport boxes
Heating
CO2-Incubators
Cooling incubators
Heating baths
Heating mantles
Hotplates
Incubators
Microwaves
Ovens, Furnaces
Shaking incubators
Shaking water baths
Temperature controllers, thermostats
Test incubators
Thermoblocks
Universal, Heating and Drying incubators
Vacuum drying incubators
Water baths
Temperature regulators
Circulator baths
Cooling-Thermostats
Dynamic Temperature Control Systems
Heating-Thermostats
Temperature Control Accessories
Life Sciences
Cell Culture
Aspirators
Cultivation
Filtration
Safety Cabinets
General Consumables
Centrifugation Tubes
Deep-well plates
Micro Tubes
Photometers
Slides
Genomics
Concentration
DNA and RNA isolation
DNA-Electrophoresis
Electroporation
Gel-Documentation
PCR
PCR cabinets
Thermocyclers
Histology
Accessories and reagents
Dissecting sets
Embedding cassettes
Microtoms
Scalpels
Tissue floating baths
Microbiology
Analysis
Cell disruption
Cultivation
Disruptors
Filtration
Incubation
Media and reagents
Sterilizers and burners
Proteomics
Analysis
Blot Imaging
Blotting
ELISA
Microplates Readers and Washers
Protein-Electrophoresis
Purification
Liquid Handling
Dispensing
Bottletop dispensers
Hand dispensers
Microfluidics
Hoses and connections
Syringe pumps
Syringes
Pipettes
Capillary tubes
Graduated pipettes
Microlitre pipettes
Pasteur pipettes
Pipette balls
Pipette controllers
Pipette tips
Pipettes Accessories
Positive displacement pipettes
Reagent Reservoirs
Serological pipettes
Volumetric pipettes
Pumps
Dosing pumps
Drum pumps
Gear pumps
Peristaltic pumps
Rotary piston pumps
Titration
Burettes
Digital burettes
Digital burettes
Titrators
Volumetric apparatus
Graduated flasks
Measuring cylinders
Mixing cylinders
Occupational safety, Security
Breathing protection
Full face masks
Half masks
Hygiene masks
Ear protection
Noise protection
Eye protection
Accessories
Eyeshields
Overgoggles
Panoramic eyeshields
Safety shields
First-aid
Body showers
Boxes, Cabinets
Dressings/plasters
Eye wash bottles
Eye wash stations
Fire protection
Furniture
Chairs
Fume hoods
Furniture
Lamps
Safety cabinets
Step-ladders
Gloves
Chemical protective gloves
Cotton safety gloves
Cut resistant gloves
Glove box holder
Latex gloves
Nitrile gloves
Temperature protective gloves
Vinyl gloves
Identification of hazards
Safety signs
Protective clothing
Aprons
Caps
Coveralls
Laboratory coats
Oversleeves
Shoes
Radiation protection
Radiation shielding
Safety containers
Drum sumps
Transport, storage containers
Skin protection
Skin care
Transport
Trolleys
Waste disposal
Chemical Sorbents
Waste bins
Waste, Disposal bags
Optical instruments and Microscopes
Microscopy
Cold light sources
Counting chambers
Digital microscopes and cameras
Light microscopes
Microscopy accessories
Slide covers
Slide storage
Slides
Staining racks
Stereomicroscopes
Optical instruments
Magnifiers
Photometers
Accessories cuvettes
Glass cuvettes
Microplate reader and washer
OD-Measurement
Plastic cuvettes
Polarimeters
Special Photometers
Spectrophotometers
Refractometers
Benchtop refractometers
Hand held refractometers
Sample preparation
Laboratory presses
Presses
Grinding
Jaw breaker
Mills
Mortars
Mixing, Homogenisation
Dispersers
Homogenisers
Ultrasonic homogenisers
Sampling
Sample containers
Sample transport, storage
Samplers, gas
Samplers, Liquids
Samplers, Solids
Sieving
Laboratory presses
Sample dividers
Sieve shakers
Test sieves
Stirring, Shaking, Mixing
Magnetic stirrers / Hotplates
Accessories, Magnetic stirring bars
with heating and induction
With heating and motor
Without heating, cable free
without heating, with induction
Without heating, with motor
Overhead stirrers
Instruments
Stirrer Heads
Stirrers
Shakers and mixers
Microtitre plate shakers
Orbital shakers
Overhead shakers
Reciprocating shakers
Rocking shakers
Roller mixers
Thermoshakers
Tumbling shakers
Vortexer
Vacuum technology, Drying, Dry storage
Accessories
Cold traps, Woulff bottles
for vacuum pumps
Desiccators
Desiccator cabinets
Desiccators - glass
Desiccators - plastic
Diaphragm pumps
Pump units-speed controlled
Pump units-valve controlled
Pumps
Laboratory Freeze drying
Freeze dryers
Piston pumps/Compressors
Pumps and compressors
Rotary vane pumps
Pump units
Pumps
Vacuum controller
Sensors and Controllers
Water jet pumps
Water jet pumps
Other
Laboratorijske kemikalije
Macron
Acros Organics
Carlo Erba Reagents - SDS
Dr. Ehrenstorfer
Fisher Chemical
Fluka
Honeywell
J.T. Baker
KEFO farmaceutske kemikalije
Kefo puferi, titrivali i gotove otopine
LGC Promochem
Maybridge
Merck
Reagecon
Sigma Aldrich
LabExpert
Ostalo
Tehnička kemija i granulati
Tehničke kemikalije
Granulati
Služba servisa i podrške kupcima
Medicinska oprema
Rapid SARS-CoV-2 Antigen Test (Boson Biotech)
O poduzeću
Povijest
Gdje smo
Kontaktni podaci
Kontakt
KEFO ZAPOŠLJAVA
Tehnička dokumentacija
Specifikacije
Analitički certifikati
Sigurnosni listovi
Kontaktni podaci
Akcije i promocije
044 544 913
info@kefo.hr
Menu
Laboratorijski aparati
Biomedicina
Biotek (Agilent)
Cellink
Covaris
Illumina
Minerva
Nikon
Zaštita od COVID 19
ZAŠTITNE MASKE
RUKAVICE
DEZINFICIJENSI
TESTOVI COVID 19 ZA NOS I USTA
BRISEVI
IGLE
OPREMA ZA ZAŠTITU
ZAŠTITNA ODJEĆA
Laboratorijski potrošni materijal, aparati i kemikalije
Laboratorijski potrošni materijal i aparati
Schott Duran
La-Pha-Pack, vijale,...
Analytical measurement and testing
Viscosity determination
Viscosimeter
Analytical instruments and systems
Fluoride determination
Melting point determination
Balances
Accessories
Analytical balances
Moisture balances
Other balances
Pocket balances
Precision balances
Weights
Climate and environment measurement
Hygrometer
Special climate meters
Conductivity measurement
electrodes
portable devices
Solutions
Table devices
Density determination
Density meters
Density meter, Pycnometer
Viscosimeter
Material testing
Force measurement
Hardness measurement
Surface analysis
Thickness measurement
Multiparameter measurement
Devices
oxygen measurement
Devices
electrodes and accessories
pH-measurement
Buffer solutions
Electrode accessories
Electrodes
Paper, chopstick
portable devices
Table devices
Thermometers
Laboratory thermometers
Surface, Insertion thermometers
Temperature data logger
Temperature meters
Temperature-Humidity logger
Timing
Clocks
stopwatch
Timers
Chromatography
Gas chromatography
Gas generators
GC columns
GC consumables
GC reagents
Liquid chromatography
Glass columns
HPLC columns
Solvent storage/handling
NMR/EPR
Accessories
Tubes
Sample preparation
SPE
Syringe filters
Syringes
Disposable syringes
Microlitre Syringes
Thin-layer chromatography
Accessories
Chambers
Detection
Plates
Vials
Accessories
NMR tubes
Vials, Septa
Cleanroom, Cleaning and sterilisation
Cleaning implements
Brushes
Draining racks
Wipes, cloths
Cleanroom
Cleaning
Documentation and adhesive tapes
Eye protection
Facility
Hand protection
Protective clothing
Disinfection
Compressed air spray
for Instruments
for surfaces
Screen cleaners
Steam sterilisers - Autoclaves
Accessories
Instruments
Sterile packaging
Ultrasonic cleaners
Instruments
Ultrasonic cleaners
Washers, disinfectors
Accessories
Instruments
Distillation, separation, filtration
Distillation, synthesis
Components for Extraction
Components for reaction and distillation
Distillation-Accessories
Dropping Funnels
Flasks with NS joint neck
Flat ground flange reaction vessels
Gas wash bottles
Ground joints, attachable
KPG stirrer and bearings
Laboratory reactors
NS joints accessories
Reflux condenser
standard ground stoppers
Stopcocks and Valves
Tubing adapters
Filtration
Dialysis tubes
Filter paper, qualitative
Filter paper, quantitative
Filtration apparatus
Glass-fibre filters
In-Line filter
Membrane filters
Microfilter plates
Syringe filters
Rotary evaporators
Accessories
Instruments
Separating, centrifuging
Benchtop centrifuges
Centrifuge tubes
Minicentrifuges
Environmental-, soil-, water-, food analysis
Sample analysis
Oil Testing
BOD
COD
Elemental analysis
Extraction
Kjeldahl
Milk analysis
Photometers
Special distillation
Turbidity
Sample preparation
Air sampling and analysis
for standard analysis
Trace analysis
Accessories
Tubes
Water purification
Distillation
Pure and ultra-pure water
General laboratory consumables
General laboratory aids
Accessories for electrical device
Bags, Foils
Batteries
Documenting
Greases
Labels
Laboratory jacks
Stands, Fittings
Heating
Beaker tongs
Burners
Drying
Tripod
Tools
Forceps
Glass working
Knives, Scissors
Scoops
Spoons, Spatulas
Workshop tools
Tubing
Adapters, Clips, Clamps
Plastic
Rubber
Stoppers
Tubing/Gas
Vessels
Aspirators and Carboys
Baskets
Beakers
Buckets
Containers
Crucibles
Cylinders
Dishes
Flasks
Funnels
Measuring jugs
Narrow-mouth bottles
Reagent bottles
Spray, dropping bottles
Square bottles
Stoppers
Test tubes
Transport boxes
Tube racks
Wide mouth kegs
Wide-mouth bottles
Heating and cooling technology
Cooling
Biobanking
Cryogenic accessories
Cryogenic boxes
Cryogenic racks
Cryogenic storage tanks
Cryogenic tubes
Dewar flasks
Ice machines
Liquid nitrogen-Accessories
Low and Ultra low temperature freezers
Refrigerators and Freezers
Refrigerators and Freezers ex protected
Transport boxes
Heating
CO2-Incubators
Cooling incubators
Heating baths
Heating mantles
Hotplates
Incubators
Microwaves
Ovens, Furnaces
Shaking incubators
Shaking water baths
Temperature controllers, thermostats
Test incubators
Thermoblocks
Universal, Heating and Drying incubators
Vacuum drying incubators
Water baths
Temperature regulators
Circulator baths
Cooling-Thermostats
Dynamic Temperature Control Systems
Heating-Thermostats
Temperature Control Accessories
Life Sciences
Cell Culture
Aspirators
Cultivation
Filtration
Safety Cabinets
General Consumables
Centrifugation Tubes
Deep-well plates
Micro Tubes
Photometers
Slides
Genomics
Concentration
DNA and RNA isolation
DNA-Electrophoresis
Electroporation
Gel-Documentation
PCR
PCR cabinets
Thermocyclers
Histology
Accessories and reagents
Dissecting sets
Embedding cassettes
Microtoms
Scalpels
Tissue floating baths
Microbiology
Analysis
Cell disruption
Cultivation
Disruptors
Filtration
Incubation
Media and reagents
Sterilizers and burners
Proteomics
Analysis
Blot Imaging
Blotting
ELISA
Microplates Readers and Washers
Protein-Electrophoresis
Purification
Liquid Handling
Dispensing
Bottletop dispensers
Hand dispensers
Microfluidics
Hoses and connections
Syringe pumps
Syringes
Pipettes
Capillary tubes
Graduated pipettes
Microlitre pipettes
Pasteur pipettes
Pipette balls
Pipette controllers
Pipette tips
Pipettes Accessories
Positive displacement pipettes
Reagent Reservoirs
Serological pipettes
Volumetric pipettes
Pumps
Dosing pumps
Drum pumps
Gear pumps
Peristaltic pumps
Rotary piston pumps
Titration
Burettes
Digital burettes
Digital burettes
Titrators
Volumetric apparatus
Graduated flasks
Measuring cylinders
Mixing cylinders
Occupational safety, Security
Breathing protection
Full face masks
Half masks
Hygiene masks
Ear protection
Noise protection
Eye protection
Accessories
Eyeshields
Overgoggles
Panoramic eyeshields
Safety shields
First-aid
Body showers
Boxes, Cabinets
Dressings/plasters
Eye wash bottles
Eye wash stations
Fire protection
Furniture
Chairs
Fume hoods
Furniture
Lamps
Safety cabinets
Step-ladders
Gloves
Chemical protective gloves
Cotton safety gloves
Cut resistant gloves
Glove box holder
Latex gloves
Nitrile gloves
Temperature protective gloves
Vinyl gloves
Identification of hazards
Safety signs
Protective clothing
Aprons
Caps
Coveralls
Laboratory coats
Oversleeves
Shoes
Radiation protection
Radiation shielding
Safety containers
Drum sumps
Transport, storage containers
Skin protection
Skin care
Transport
Trolleys
Waste disposal
Chemical Sorbents
Waste bins
Waste, Disposal bags
Optical instruments and Microscopes
Microscopy
Cold light sources
Counting chambers
Digital microscopes and cameras
Light microscopes
Microscopy accessories
Slide covers
Slide storage
Slides
Staining racks
Stereomicroscopes
Optical instruments
Magnifiers
Photometers
Accessories cuvettes
Glass cuvettes
Microplate reader and washer
OD-Measurement
Plastic cuvettes
Polarimeters
Special Photometers
Spectrophotometers
Refractometers
Benchtop refractometers
Hand held refractometers
Sample preparation
Laboratory presses
Presses
Grinding
Jaw breaker
Mills
Mortars
Mixing, Homogenisation
Dispersers
Homogenisers
Ultrasonic homogenisers
Sampling
Sample containers
Sample transport, storage
Samplers, gas
Samplers, Liquids
Samplers, Solids
Sieving
Laboratory presses
Sample dividers
Sieve shakers
Test sieves
Stirring, Shaking, Mixing
Magnetic stirrers / Hotplates
Accessories, Magnetic stirring bars
with heating and induction
With heating and motor
Without heating, cable free
without heating, with induction
Without heating, with motor
Overhead stirrers
Instruments
Stirrer Heads
Stirrers
Shakers and mixers
Microtitre plate shakers
Orbital shakers
Overhead shakers
Reciprocating shakers
Rocking shakers
Roller mixers
Thermoshakers
Tumbling shakers
Vortexer
Vacuum technology, Drying, Dry storage
Accessories
Cold traps, Woulff bottles
for vacuum pumps
Desiccators
Desiccator cabinets
Desiccators - glass
Desiccators - plastic
Diaphragm pumps
Pump units-speed controlled
Pump units-valve controlled
Pumps
Laboratory Freeze drying
Freeze dryers
Piston pumps/Compressors
Pumps and compressors
Rotary vane pumps
Pump units
Pumps
Vacuum controller
Sensors and Controllers
Water jet pumps
Water jet pumps
Other
Laboratorijske kemikalije
Macron
Acros Organics
Carlo Erba Reagents - SDS
Dr. Ehrenstorfer
Fisher Chemical
Fluka
Honeywell
J.T. Baker
KEFO farmaceutske kemikalije
Kefo puferi, titrivali i gotove otopine
LGC Promochem
Maybridge
Merck
Reagecon
Sigma Aldrich
LabExpert
Ostalo
Tehnička kemija i granulati
Tehničke kemikalije
Granulati
Služba servisa i podrške kupcima
Medicinska oprema
Rapid SARS-CoV-2 Antigen Test (Boson Biotech)
Kontaktni podaci
Akcije i promocije
Kefo.si
/
Laboratorijski potrošni materijal, aparati i kemikalije
/
Laboratorijski potrošni materijal i aparati
/
Life Sciences
/
Histology
Histology
Razvrsti
Pozicija
Naziv: A do Z
Naziv: Z do A
Cijena: Manje prema većem
Cijena: Veće prema manjem
Kreirano
Izberi pogled
Prikaži na stranu
6
18
36
Aesculap
®
Safety scalpel
SAFETY SCALPEL TYPE 25
×
Obratite se na svoj veleprodavača.
Aesculap
®
Safety scalpel
SAFETY SCALPEL TYPE 36
×
Obratite se na svoj veleprodavača.
Alcian blue/PAS stain kit Richard-Allan Scientific™
Alcian blue/PAS stain kit Richard-Allan Scientific™
×
Obratite se na svoj veleprodavača.
Amyloid stain kit Richard-Allan Scientific™
Amyloid stain kit Richard-Allan Scientific™
×
Obratite se na svoj veleprodavača.
Basic embedding moulds, stainless steel
Basic embedding moulds, stainless steel
×
Obratite se na svoj veleprodavača.
Basic embedding moulds, stainless steel
Basic embedding moulds, stainless steel
×
Obratite se na svoj veleprodavača.
Basic embedding moulds, stainless steel
Basic embedding moulds, stainless steel
×
Obratite se na svoj veleprodavača.
Basic embedding moulds, stainless steel
Basic embedding moulds, stainless steel
×
Obratite se na svoj veleprodavača.
Blades for microtomes and cryostats, high profile
Blades for microtomes and cryostats, high profile
×
Obratite se na svoj veleprodavača.
Blades for microtomes and cryostats, low profile
Blades for microtomes and cryostats, low profile
×
Obratite se na svoj veleprodavača.
Blades for microtomes and cryostats, low profile
Blades for microtomes and cryostats, low profile
×
Obratite se na svoj veleprodavača.
Blades for microtomes and cryostats, low profile
Blades for microtomes and cryostats, low profile
×
Obratite se na svoj veleprodavača.
Blades for microtomes and cryostats, low profile
Blades for microtomes and cryostats, low profile
×
Obratite se na svoj veleprodavača.
Blades for microtomes and cryostats, low profile
Blades for microtomes and cryostats, low profile
×
Obratite se na svoj veleprodavača.
Blades for Microtoms, stainless steel
MICROTOME BLADES MS300
×
Obratite se na svoj veleprodavača.
Blades for Microtoms, stainless steel
MICROTOME BLADES HP HIGH PROFILE PLASMA,
×
Obratite se na svoj veleprodavača.
SOLOFIXR BLOOD LANCETS, STERILE
×
Obratite se na svoj veleprodavača.
Blood lancets TIP TOP TIP, sterile
Blood lancets TIP TOP TIP, sterile
×
Obratite se na svoj veleprodavača.
Prva
Prethodna
4
5
6
7
8
Slijedeća
Zadnja
Prodajni program
Laboratorijski aparati
Biomedicina
Zaštita od COVID 19
Laboratorijski potrošni materijal, aparati i kemikalije
Laboratorijski potrošni materijal i aparati
Schott Duran
La-Pha-Pack, vijale,...
Analytical measurement and testing
Chromatography
Cleanroom, Cleaning and sterilisation
Distillation, separation, filtration
Environmental-, soil-, water-, food analysis
General laboratory consumables
Heating and cooling technology
Life Sciences
Cell Culture
General Consumables
Genomics
Histology
Accessories and reagents
Dissecting sets
Embedding cassettes
Microtoms
Scalpels
Tissue floating baths
Microbiology
Proteomics
Liquid Handling
Occupational safety, Security
Optical instruments and Microscopes
Sample preparation
Stirring, Shaking, Mixing
Vacuum technology, Drying, Dry storage
Other
Laboratorijske kemikalije
Tehnička kemija i granulati
Služba servisa i podrške kupcima
Medicinska oprema
Rapid SARS-CoV-2 Antigen Test (Boson Biotech)
Kontakti
KEFO d.o.o.
Nikole Tesle 10
44000 Sisak
+385 44 544913
+385 44 544914
info@kefo.hr
