Chiudi Menù
Regione Autonoma della Sardegna Regione Autonoma della Sardegna Regione Autonoma della Sardegna Regione Autonoma della Sardegna
Regione Sardegna
Seguici su
Cerca Cerca nel sito

Risultati Ricerca

Risultati di Ricerca

Risultati: 1-120 di 2185629

Modifica la ricerca

Filtri attivi:

Simili a: The chemical elements and their compounds. 1
Categoria: Testo
The chemical elements and their compounds
Testo
The chemical elements and their compounds

Sidgwick, Nevil Vincent <1873-1952>

The chemical elements and their compounds. 2
Testo
The chemical elements and their compounds. 2
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references. Fourteenth supplement
Testo
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references. Fourteenth supplement
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the carbon compounds and their derivatives, together with relevant literature references. Eleventh supplement incorporating new material published in and before 1974
Testo
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the carbon compounds and their derivatives, together with relevant literature references. Eleventh supplement incorporating new material published in and before 1974
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references. Thirteenth supplement
Testo
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references. Thirteenth supplement
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the carbon compounds and their derivatives together with relevant literature references. Seventh supplement incorporating new material published in and before 1970
Testo
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the carbon compounds and their derivatives together with relevant literature references. Seventh supplement incorporating new material published in and before 1970
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the carbon compounds and their derivatives together with relevant literature references. Fourth supplement incorporating new material published in and before 1967
Testo
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the carbon compounds and their derivatives together with relevant literature references. Fourth supplement incorporating new material published in and before 1967
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references. Third supplement incorporating new material published in and before 1966
Testo
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references. Third supplement incorporating new material published in and before 1966
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references. First supplement incorporating new material published in and before 1964
Testo
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references. First supplement incorporating new material published in and before 1964
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references. Twelfth supplement incorporating new material published in and before 1975
Testo
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references. Twelfth supplement incorporating new material published in and before 1975

Cadogan, John Ivan George

Dictionary of organic compounds : The constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references. Second Supplement incorporating new material published in and before 1965
Testo
Dictionary of organic compounds : The constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references. Second Supplement incorporating new material published in and before 1965
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references
Testo
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references. Fifth and cumulative supplement collating new material published in and before 1968 with material published in the first, second, third and fourth annual supplements
Testo
Dictionary of organic compounds : the constitution and physical, chemical and other properties of the principal carbon compounds and their derivatives, together with relevant literature references. Fifth and cumulative supplement collating new material published in and before 1968 with material published in the first, second, third and fourth annual supplements
Minor elements and their effects on the growth and chemical composition of herbage plants
Testo
Minor elements and their effects on the growth and chemical composition of herbage plants

Dorrington Williams, R.

G: Monocarboxylic acids of the benzene series: C7-C13 carbocyclic compounds with fused-ring systems and their derivatives
Testo
G: Monocarboxylic acids of the benzene series: C7-C13 carbocyclic compounds with fused-ring systems and their derivatives
The geochemistry of rare and dispersed chemical elements in soils
Testo
The geochemistry of rare and dispersed chemical elements in soils

Vinogradov, Aleksandr Pavlovich

The chemistry of lipids in health and disease : a review of our present knowledge of lipids, their chemical structure, their breakdown and synthesis in living organisms, their place in human nutrition, and their abnormalities of metabolism in disease
Testo
The chemistry of lipids in health and disease : a review of our present knowledge of lipids, their chemical structure, their breakdown and synthesis in living organisms, their place in human nutrition, and their abnormalities of metabolism in disease

King, H. K.

The preparation, properties, chemical behavior, and identification of organic chlorine compounds : tables of data on selected compounds of order 3.
Testo
The preparation, properties, chemical behavior, and identification of organic chlorine compounds : tables of data on selected compounds of order 3.

Huntress, Ernest Hamlin

Encyclopedia of chemical technology. 21: Uranium and uranium compounds to Water (analysis)
Testo
Encyclopedia of chemical technology. 21: Uranium and uranium compounds to Water (analysis)
A: Mononuclear hydrocarbons and their halogeno derivatives, and derivatives with nuclear substituents attached through nonmetallic elements from group 6 of the periodic table
Testo
A: Mononuclear hydrocarbons and their halogeno derivatives, and derivatives with nuclear substituents attached through nonmetallic elements from group 6 of the periodic table
13: High-temperature heat-content, heat-capacity, and entropy data for the elements and inorganic compounds
Testo
13: High-temperature heat-content, heat-capacity, and entropy data for the elements and inorganic compounds
Index to volumes A1 to A28, B1 to B8 (Abrasives to zirconium and zirconium compounds, fundamentals of chemical engineering, unit operations 1. and 2., principles of chemical reaction engineering and plant design, analytical methods 1. and2., process control engineering, and environmental protection and industrial safety 1. and 2.)
Testo
Index to volumes A1 to A28, B1 to B8 (Abrasives to zirconium and zirconium compounds, fundamentals of chemical engineering, unit operations 1. and 2., principles of chemical reaction engineering and plant design, analytical methods 1. and2., process control engineering, and environmental protection and industrial safety 1. and 2.)
7: The elements and compounds of group 4A
Testo
7: The elements and compounds of group 4A

Klug, Harold P.

Physico-chemical constants of pure organic compounds. [1]
Testo
Physico-chemical constants of pure organic compounds. [1]

Timmermans, Jean

The alternating currents : their elements explained, and their calculation effected without the use of hyberbolic functions
Testo
The alternating currents : their elements explained, and their calculation effected without the use of hyberbolic functions

Kempe, Harry Robert

Tables of spectrophotometric absorption data of compounds used for the colorimetric determination of elements
Testo
Tables of spectrophotometric absorption data of compounds used for the colorimetric determination of elements
Porphyrins : their biological and chemical importance
Testo
Porphyrins : their biological and chemical importance

Vannotti, Alfredo

Sulfur compounds in foods : developed from a symposium sponsored by the Division of agricultural and food chemistry at the 206. national meeting of the American chemical society
Testo
Sulfur compounds in foods : developed from a symposium sponsored by the Division of agricultural and food chemistry at the 206. national meeting of the American chemical society
Organic sequestering agents : a discussion of the chemical behavior and applications of metal chelate compounds in aqueous systems
Testo
Organic sequestering agents : a discussion of the chemical behavior and applications of metal chelate compounds in aqueous systems

Chaberek, Stanley

Fluids in the earthʼs crust : their significance in metamorphic, tectonic and chemical transport processes
Testo
Fluids in the earthʼs crust : their significance in metamorphic, tectonic and chemical transport processes

Fyfe, William S.

Inorganic chemistry and the earth : chemical resources, their extraction, use and environmental impact
Testo
Inorganic chemistry and the earth : chemical resources, their extraction, use and environmental impact

Fergusson, Jack E.

The acridines : their preparation, physical, chemical and biological properties and uses
Testo
The acridines : their preparation, physical, chemical and biological properties and uses

Albert, Adrien

The solution of the cancer problem : based on an enquiry into the bio-chemical and radio-active properties of living matter and their chemical and physical relation to the cancer inducing agents
Testo
The solution of the cancer problem : based on an enquiry into the bio-chemical and radio-active properties of living matter and their chemical and physical relation to the cancer inducing agents

Woodroffe Hicks, Evelyn

7: Polycyclic compounds containing two hetero atoms in different rings; five- and six-membered heterocycles containing three hetero atoms and their benzo derivatives
Testo
7: Polycyclic compounds containing two hetero atoms in different rings; five- and six-membered heterocycles containing three hetero atoms and their benzo derivatives
Rock minerals : their chemical and physical characters and their determination in thin sections
Testo
Rock minerals : their chemical and physical characters and their determination in thin sections

Iddings, Joseph P.

The chemical thermodynamics of organic compounds
Testo
The chemical thermodynamics of organic compounds

Stull, Daniel R.

Geochemistry and mineralogy of rare elements and genetic types of their deposits
Testo
Geochemistry and mineralogy of rare elements and genetic types of their deposits
The oxidation states of the elements and their potentials in aqueous solutions
Testo
The oxidation states of the elements and their potentials in aqueous solutions

Latimer, Wendell Mitchell <1893-1955>

Pharmacological and chemical synonyms : a collection of names of drugs, pesticides and other compounds drawn from the medical literature of the world
Testo
Pharmacological and chemical synonyms : a collection of names of drugs, pesticides and other compounds drawn from the medical literature of the world

Marler, E. E. J.

Magnetic properties of metals : d-elements, alloys and compounds
Testo
Magnetic properties of metals : d-elements, alloys and compounds
Semiconductors : group 4 elements and 3-5 compounds
Testo
Semiconductors : group 4 elements and 3-5 compounds
The Analytical chemistry of sulfur and its compounds. 1
Testo
The Analytical chemistry of sulfur and its compounds. 1
Elements of the theory of Markov processes and their applications
Testo
Elements of the theory of Markov processes and their applications

Bharucha-Reid, Albert T.

The origin of the chemical elements
Testo
The origin of the chemical elements

Tayler, Roger John

Elements of chemical kinetics
Testo
Elements of chemical kinetics

Prettre, Marcel <1905-1972>

British chemical and physiological abstracts. A 1, General, physical and inorganic chemistry
Testo
British chemical and physiological abstracts. A 1, General, physical and inorganic chemistry

Bureau of chemical and physiological abstracts

Chemical mutagens : principles and methods for their detection
Testo
Chemical mutagens : principles and methods for their detection
Structural models of inorganic crystals : from the elements to the compounds
Testo
Structural models of inorganic crystals : from the elements to the compounds

Vegas, Ángel

Crown compounds : their characteristics and applications
Testo
Crown compounds : their characteristics and applications

Hiraoka, Michio

Thermodynamic properties of the elements : tabulated values of the heat capacity, heat content, entropy, and free energy function of the solid, liquid, and gas states of the first 92 elements ...
Testo
Thermodynamic properties of the elements : tabulated values of the heat capacity, heat content, entropy, and free energy function of the solid, liquid, and gas states of the first 92 elements ...

Stull, Daniel R.

The biochemistry of fruits and their products. 1
Testo
The biochemistry of fruits and their products. 1
Polymers and resins : their chemistry and chemical engineering
Testo
Polymers and resins : their chemistry and chemical engineering

Golding, Brage

Encyclopedia of chemical technology. 2: Aluminum compounds to Azo dyes
Testo
Encyclopedia of chemical technology. 2: Aluminum compounds to Azo dyes
Journal of the Chemical society. Perkin transactions 1
Testo
Journal of the Chemical society. Perkin transactions 1
Encyclopedia of chemical technology. 4: Calcium compounds to Chloramphenicol
Testo
Encyclopedia of chemical technology. 4: Calcium compounds to Chloramphenicol
Encyclopedia of chemical technology. 13: Manganese compounds to Nitrophenols
Testo
Encyclopedia of chemical technology. 13: Manganese compounds to Nitrophenols
Phenoplasts : their structure, properties, and chemical technology
Testo
Phenoplasts : their structure, properties, and chemical technology

Carswell, T. S.

Encyclopedia of chemical technology. 22: Silicon compounds to Succinic acid and succinic anhydride
Testo
Encyclopedia of chemical technology. 22: Silicon compounds to Succinic acid and succinic anhydride
The ore minerals and their intergrowths. 1
Testo
The ore minerals and their intergrowths. 1

Ramdohr, Paul

Encyclopedia of chemical technology. 10: Food additives to Heterocyclic compounds
Testo
Encyclopedia of chemical technology. 10: Food additives to Heterocyclic compounds
On the susceptibility of infusoria to ultra-violet rays as related to the colloidal properties of their protoplasm changed by means of different physico-chemical methods
Testo
On the susceptibility of infusoria to ultra-violet rays as related to the colloidal properties of their protoplasm changed by means of different physico-chemical methods

Alpatov, V.

Occult chemistry : a series of clairvoyant observations on the chemical elements
Testo
Occult chemistry : a series of clairvoyant observations on the chemical elements

Besant, Annie

Spectral and chemical characterization of organic compounds : a laboratory handbook
Testo
Spectral and chemical characterization of organic compounds : a laboratory handbook

Criddle, William James

Gallium arsenide and related compounds : proceedings of the 13. internationalsymposium on gallium arsenide and related compounds held in Las Vegas, Nevada, 28 september - 1 october 1986
Testo
Gallium arsenide and related compounds : proceedings of the 13. internationalsymposium on gallium arsenide and related compounds held in Las Vegas, Nevada, 28 september - 1 october 1986

International symposium on Gallium arsenide and related compounds <13. ; 1986

Physical properties of chemical compounds. \1!
Testo
Physical properties of chemical compounds. \1!
Physico-chemical constants of pure organic compounds
Testo
Physico-chemical constants of pure organic compounds

Timmermans, Jean

On the susceptibility of infusoria to ultra-violet rays as related to the colloidal properties of their protoplasm changed by means of different physico-chemical methods
Testo
On the susceptibility of infusoria to ultra-violet rays as related to the colloidal properties of their protoplasm changed by means of different physico-chemical methods

Alpatov, V.

Gallium arsenide and related compounds : proceedings of the 14. international symposium on gallium arsenide and related compounds held in Heraklion, Crete, 28 september-1 october 1987
Testo
Gallium arsenide and related compounds : proceedings of the 14. international symposium on gallium arsenide and related compounds held in Heraklion, Crete, 28 september-1 october 1987

International symposium on Gallium arsenide and related compounds <14. ; 1987

Spectral and chemical characterization of organic compounds : a laboratory handbook
Testo
Spectral and chemical characterization of organic compounds : a laboratory handbook

Criddle, William James

1: The buildings and their contents
Testo
1: The buildings and their contents
The chemistry of organic selenium and tellurium compounds. 1
Testo
The chemistry of organic selenium and tellurium compounds. 1
3: Ontopoietic expansion in human self-interpretation-in-existence : the 1. and the other in their creative spacing of the societal circuits of life
Testo
3: Ontopoietic expansion in human self-interpretation-in-existence : the 1. and the other in their creative spacing of the societal circuits of life
Organic selenium compounds : their chemistry and biology
Testo
Organic selenium compounds : their chemistry and biology

Klayman, Daniel L.

Rock-sawing by wire: some effects of the addition of chemical compounds to the abbrasive pulps
Testo
Rock-sawing by wire: some effects of the addition of chemical compounds to the abbrasive pulps

Carta, Mario <1910-1985>

By their fruits you shall know them : eschatological and legal elements in Peirce's philosophy
Testo
By their fruits you shall know them : eschatological and legal elements in Peirce's philosophy

Schulz, Lorenz

By their fruits you shall know them : eschatological and legal elements in Peirce's philosophy
Testo
By their fruits you shall know them : eschatological and legal elements in Peirce's philosophy

Schulz, Lorenz

1: The cum-constructions: their history and functions
Testo
1: The cum-constructions: their history and functions

Hale, William Gardner

The periodic kingdom : a journey into the land of the chemical elements
Testo
The periodic kingdom : a journey into the land of the chemical elements

Atkins, P. W.

Powers within: artist and anthropologist work together to create andean mytic beasts and elements of nature in their own image
Testo
Powers within: artist and anthropologist work together to create andean mytic beasts and elements of nature in their own image

Strong, Mary

Powers within: artist and anthropologist work together to create andean mytic beasts and elements of nature in their own image
Testo
Powers within: artist and anthropologist work together to create andean mytic beasts and elements of nature in their own image

Strong, Mary

Supplement 1 (1957-1959) to the second edition of The ring index : a list of ring systems used in organic chemistry
Testo
Supplement 1 (1957-1959) to the second edition of The ring index : a list of ring systems used in organic chemistry

American Chemical Society : Chemical Abstracts Service

The mathematics of finite elements and applications : proceedings of the Brunel university conference of the institute of mathematics and its applications, held in April 1972
Testo
The mathematics of finite elements and applications : proceedings of the Brunel university conference of the institute of mathematics and its applications, held in April 1972
The periodic system of chemical elements : a history of the first hundred years
Testo
The periodic system of chemical elements : a history of the first hundred years

Spronsen, Johannes W. : van

The chemistry of ketenes, allenes and related compounds. Pt. 1
Testo
The chemistry of ketenes, allenes and related compounds. Pt. 1
The principles of chemical equilibrium : with applications in chemistry and chemical engineering
Testo
The principles of chemical equilibrium : with applications in chemistry and chemical engineering

Denbigh, Kenneth

1: The Mughals and their contemporaries.
Testo
1: The Mughals and their contemporaries.
The first european congress on chemical engineering : in occasion of ICheaP-3, the 3rd Italian conference on chemical and process engineering
Testo
The first european congress on chemical engineering : in occasion of ICheaP-3, the 3rd Italian conference on chemical and process engineering

European congress on chemical engineering <1. ; 1997

The first Conference on chemical and process engineering : proceedings
Testo
The first Conference on chemical and process engineering : proceedings

Conference on chemical and process engineering <1. ; 1993

The identification of organic compounds : a manual of qualitative and quantitative methods
Testo
The identification of organic compounds : a manual of qualitative and quantitative methods

Veibel, Stig

Properties of polymers : their correlation with chemical structure; their numerical estimation and prediction from additive group contributions
Testo
Properties of polymers : their correlation with chemical structure; their numerical estimation and prediction from additive group contributions

Krevelen, Dirk Willem : van

British chemical and physiological abstracts. A 2, Organic chemistry
Testo
British chemical and physiological abstracts. A 2, Organic chemistry

Bureau of chemical and physiological abstracts

1: Primal elements : the oral tradition
Testo
1: Primal elements : the oral tradition
Rousseau, the age of Enlightenment, and their legacies
Testo
Rousseau, the age of Enlightenment, and their legacies

Wokler, Robert

1: General introduction and aliphatic compounds.
Testo
1: General introduction and aliphatic compounds.
British chemical and physiological abstracts. A 3, Physiology and biochemistry
Testo
British chemical and physiological abstracts. A 3, Physiology and biochemistry

Bureau of chemical and physiological abstracts

The Analytical chemistry of sulfur and its compounds. 2
Testo
The Analytical chemistry of sulfur and its compounds. 2
The elements of physical and geometrical astronomy. 1
Testo
The elements of physical and geometrical astronomy. 1
Clay minerals : a physico-chemical explanation of their occurrence
Testo
Clay minerals : a physico-chemical explanation of their occurrence

Velde, Bruce

1: Compounds of isotopic carbon
Testo
1: Compounds of isotopic carbon

Murray, Arthur

B: Benzoquinones and related compounds: derivatives of mononuclear benzenoid hydrocarbons with nuclear substituents attached through an element other than the non-metals in groups 6. and 7. of the periodic table
Testo
B: Benzoquinones and related compounds: derivatives of mononuclear benzenoid hydrocarbons with nuclear substituents attached through an element other than the non-metals in groups 6. and 7. of the periodic table
1: Macronutrients and nutrient elements
Testo
1: Macronutrients and nutrient elements
Trace elements in fuel : A symposium sponsored by the Division of Fuel Chemistry at the 166th meeting of the American chemical Society, Chicago, Ill., August 30, 1973
Testo
Trace elements in fuel : A symposium sponsored by the Division of Fuel Chemistry at the 166th meeting of the American chemical Society, Chicago, Ill., August 30, 1973
The mathematics of finite elements and applications 6. : MAFELAP 1987
Testo
The mathematics of finite elements and applications 6. : MAFELAP 1987

Conference on the mathematics of finite elements and applications <6. ; 1987

1: The simpler acyclic and monocyclic terpenes and their derivatives
Testo
1: The simpler acyclic and monocyclic terpenes and their derivatives

Simonsen, John L.

Organic compounds of sulphur, selenium, and tellurium. 1
Testo
Organic compounds of sulphur, selenium, and tellurium. 1
Stochastic processes and their applications : a journal devoted to the theory of stochastic processes and their applications in science and engineering
Testo
Stochastic processes and their applications : a journal devoted to the theory of stochastic processes and their applications in science and engineering
Quantitative chemical analysis : an introduction to the science and practice of chemical measurement
Testo
Quantitative chemical analysis : an introduction to the science and practice of chemical measurement

Foulk, Charles W.

Elements of chemical engineering
Testo
Elements of chemical engineering

Badger, Walter Lucius

The Analytical chemistry of sulfur and its compounds
Testo
The Analytical chemistry of sulfur and its compounds
1: The structure, preparation, thermochemistry and characterization of organometallic compounds
Testo
1: The structure, preparation, thermochemistry and characterization of organometallic compounds
Organic compounds of sulphur, selenium, and tellurium : a review of the literature published between ...
Testo
Organic compounds of sulphur, selenium, and tellurium : a review of the literature published between ...
Group theory and general relativity : representations of the Lorentz group and their applications to the gravitational field
Testo
Group theory and general relativity : representations of the Lorentz group and their applications to the gravitational field

Carmeli, Moshe

Kierkegaard, the myths and their origins : Studies in the Kierkegaardian Papers and Letters
Testo
Kierkegaard, the myths and their origins : Studies in the Kierkegaardian Papers and Letters

Fenger, Henning

Elements of sonata theory : norms, types, and deformations in the late-eighteenth-century sonata
Testo
Elements of sonata theory : norms, types, and deformations in the late-eighteenth-century sonata

Hepokoski, James A.

British chemical abstracts. AI. General, physical, and inorganic chemistry
Testo
British chemical abstracts. AI. General, physical, and inorganic chemistry

Bureau of chemical abstracts

Solid surfaces and the gas-solid interface : papers presented at the Kendall Award Symposium honoring Stephen Brunawer, Division of colloid and surfaces chemistry, 139. meeting of the American chemical society, St. Louis, Mo., March 1961
Testo
Solid surfaces and the gas-solid interface : papers presented at the Kendall Award Symposium honoring Stephen Brunawer, Division of colloid and surfaces chemistry, 139. meeting of the American chemical society, St. Louis, Mo., March 1961

Meeting of the American chemical society <139. ; 1961 : St. Louis>

The special functions and their approximations. 1
Testo
The special functions and their approximations. 1
The rotation and Lorentz groups and their representations for physicists
Testo
The rotation and Lorentz groups and their representations for physicists

Srinivasa Rao, K.

Dictionary of organic compounds. Tenth and cumulative supplement : collating new material published in and before 1973 with material published in the sixth, seventh, eighth, and ninth annual supplements
Testo
Dictionary of organic compounds. Tenth and cumulative supplement : collating new material published in and before 1973 with material published in the sixth, seventh, eighth, and ninth annual supplements
Trace elements in man and animals - TEMA 5 : proceedings of the 5. International Symposium on Trace Elements in Man and Animals
Testo
Trace elements in man and animals - TEMA 5 : proceedings of the 5. International Symposium on Trace Elements in Man and Animals

International Symposium on Trace Elements in Man and Animals <5 ; 1984

1 2 3

Filtra Risultati

Chiudi

Argomenti

Indietro Avanti