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Articles 291571 - 291600 of 302466

Full-Text Articles in Physical Sciences and Mathematics

Where Are We? - National Scene, Richard N. Smith Oct 1973

Where Are We? - National Scene, Richard N. Smith

Bird Control Seminars Proceedings

When the question is asked, “Where are we?”, we must compare our progress to where we were in the past or to a goal of the future. When we do this, it is apparent that much has been accomplished during the past ten years, however, the goal of alleviating bird damage to all agricultural crops has not yet been met. We have developed methods to combat crop losses (Avitrol, scaring devices), we know more about bird population dynamics, more about bird behavior and physiology. Yet, there is much more to accomplish, for we have a number of bird crop damage …

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Agricultural Scene, Charles P. Stone Oct 1973

Agricultural Scene, Charles P. Stone

Bird Control Seminars Proceedings

It has been suggested that our approach to agricultural bird problems is perhaps wrong, and I feel it would be valuable to ask several individuals to give their ideas as to where their programs are heading right now. I would first like to ask Jerry Besser, the Chief of the Bird Section of the Denver Wildlife Center, to give just a brief statement as to where they are now. BESSER: Most of our efforts are being channelled into the agricul- tural area on a broad scale. Many of the problems are national ones. We can put our finger on the …

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Decline Of A Blackbird Population During Seven Years Of Baiting With A Chemical Frightening Agent, Jerome F. Besser, John W. De Grazio, Joseph L. Guarino Oct 1973

Decline Of A Blackbird Population During Seven Years Of Baiting With A Chemical Frightening Agent, Jerome F. Besser, John W. De Grazio, Joseph L. Guarino

Bird Control Seminars Proceedings

In the early 1960's, Sand Lake National Wildlife Refuge, Brown County, South Dakota, served as an assembling area for the largest late summer blackbird congregation known to us in the Norhtern Great Plains or the western portion of the Cornbelt. Approximately 4,000 acres of cattail (Typha) and reed (Phragmites) at the Refuge served as ideal roosting habitat for blackbirds. In August and September each year, postbreeding flocks of blackbirds from northern South Dakota, North Dakota, and Canada assembled to molt in these marshes and to feed on the abundant blackbird foods in the surrounding agricultural lands before migrating to wintering …

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Bird Management On The Farm And At The Processing Plant, Thomas K. Palmer Oct 1973

Bird Management On The Farm And At The Processing Plant, Thomas K. Palmer

Bird Control Seminars Proceedings

Bird management, whether conducted on farms or at food processing plants, utilizes a rather limited number of techniques in conjunction with an intimate knowledge of pest avian behavior. The deployment of bird management techniques is dependent upon the complexity of pest induced environment and limitations imposed by human, moral, political, social and economic pressures.

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Bird Damage To Tart Cherries In Michigan, 1972, Charles P. Stone Oct 1973

Bird Damage To Tart Cherries In Michigan, 1972, Charles P. Stone

Bird Control Seminars Proceedings

Bird damage to commercial fruits has long been a problem in many coun- tries, but the true magnitude of the damage incurred is difficult to determine objectively. Often the opinions of fruit growers provide the only measure of importance. In 1972, the U.S. Fish and Wildlife Service, the Michigan Department of Agriculture, and the Statistical Reporting Service of the U.S. Department of Agriculture obtained quantitative information on bird damage to tart cherries (Prunus mahalob) in Michigan. The results of the survey are presented in this paper.

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Two Tests Of The Avian Repellent, Methiocarb, In Michigan Sweet Cherry Orchards, Allen R. Stickley Jr. Oct 1973

Two Tests Of The Avian Repellent, Methiocarb, In Michigan Sweet Cherry Orchards, Allen R. Stickley Jr.

Bird Control Seminars Proceedings

Sweet cherries provide a major source of income to Michigan fruit growers. Annual production in Michigan during the period 1963-1971 averaged 44 million pounds, or 18 percent of the national total (Smith, et al. 1973). Bird damage to Michigan cherries is a major problem. Although no figures are available on the extent of sweet cherry damage, Stone (1973) estimated that in 1972 bird damage to Michigan tart cherries amounted to 17.4 percent of the crop. According to growers we interviewed, damage to black sweet cherries is often more severe than to tart cherries. These growers also report some damage to …

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The Monk Parakeet In New York, Douglas P. Kibbe, Noel J. Cutright Oct 1973

The Monk Parakeet In New York, Douglas P. Kibbe, Noel J. Cutright

Bird Control Seminars Proceedings

Attention was focused on the Monk Parakeet (Myiopsitta monachus) in New York State in 1971 when the first successful breeding record was documented for the state although Monk Parakeets had been noticed in New York and New Jersey since 1968 (Bull, 1971). Since 1971 awareness of the bird’s potential for becoming an established species in New York has spread through several segments of the state’s populace. This awareness has been created primarily through two articles in the magazine published by the New York State Department of Environmental Conservation (DEC), The Conservationist (Trimm, 1972) (Trimm, 1973); several articles in popular magazines, …

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Monk Parakeet Damage To Crops In Uruguay And Its Control, Donald F. Mott Oct 1973

Monk Parakeet Damage To Crops In Uruguay And Its Control, Donald F. Mott

Bird Control Seminars Proceedings

The monk parakeet (Myiopsitta monachus) is considered to be a serious agricultural pest in South America. The species is resident in a sizable area from southeast Bolivia, Paraguay, and southern Brazil, through Uruguay, to central Argentina (Meyer de Schauensee, 1970: 103). Since it is hardy, adaptable, and widely sold as a cage bird, there is now concern that large enough populations may become established in the United States to cause damage to grain and fruit crops (Bump, 1971). In April 1973, I visited Uruguay under the sponsorship of the U.S. Agency for International Development (AID) to investigate patterns of agricultural …

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Preliminary Reconnaissance Water Quality Survey Of The Buffalo National River, R. E. Babcock, H. C. Macdonald, E. E. Dale Jr., R. L. Meyer, Joe Nix, D. G. Parker, Eugene Schmitz Oct 1973

Preliminary Reconnaissance Water Quality Survey Of The Buffalo National River, R. E. Babcock, H. C. Macdonald, E. E. Dale Jr., R. L. Meyer, Joe Nix, D. G. Parker, Eugene Schmitz

Technical Reports

In accordance with Contract No. CX 700030105, dated 12 February 1973, the University of Arkansas , Water Resources Resear ch Center is submitting a "Preliminary Reconnaissance Water Quality Survey of the Buffalo National River." The Water Resources Research Center of Arkansas has supplied the necessary personnel and facil ities to perform a preliminary reconnaissance survey of the Buffalo National River of Arkansas with special emphasis placed on the establishment of both permanent and temporary benchmarks for water quality sampling. Preliminary water quality samples have been collected to make those chemical, physical, and biological analyses as defined by Mr . Roland …

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Water Resources News, Volume 5, No. 10, October 1973 Oct 1973

Water Resources News, Volume 5, No. 10, October 1973

Water Current Newsletter

From the Desk of the Director
Call for Proposals - OWRR Title II Program FY 1975
Title II Grant to Bob Olson
Energy Conference
Battle on the Hill
USGS - Change of Address
National Committee on Water Quality is Founded
Reconsideration of WRC Standards Urged
House OK's $116 Million for Big Cypress
EPA Requires Payment for Sewage Users
US - Mexico Set Up $115 Million Water Desalting Project
Streams Disrupted by Army - SCS Diggings
Comptroller General Staats Requires EPA Impact Statements
Deadlines Set for Feedlot Operators
EPA Rules on Public Participation
Composted Sewage Sludge Used as Fertilizer
Bicycling Anyone? …

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Geologie Der Umgebung Der Kupfererzlagerstatte Murgul In Der Turkei, Stanko Buser, Stanojlo Cveti̇c Oct 1973

Geologie Der Umgebung Der Kupfererzlagerstatte Murgul In Der Turkei, Stanko Buser, Stanojlo Cveti̇c

Bulletin of the Mineral Research and Exploration

No abstract provided.

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Di̇vri̇ği̇ A-B-C Demi̇r Yataklarinin Jeoloji̇si̇ Ve Oluşumu Üzeri̇ne Çalişmalar, Cengiz Koşal Oct 1973

Di̇vri̇ği̇ A-B-C Demi̇r Yataklarinin Jeoloji̇si̇ Ve Oluşumu Üzeri̇ne Çalişmalar, Cengiz Koşal

Bulletin of the Mineral Research and Exploration

No abstract provided.

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Pelvoux Masi̇fi̇nde Yukari Veneon Vadi̇si̇ni̇n Kri̇stalli̇ Şi̇stleri̇ni̇n Ve Grani̇tleri̇ni̇n Petrografi̇k Etüdü, Ramiz Özocak Oct 1973

Pelvoux Masi̇fi̇nde Yukari Veneon Vadi̇si̇ni̇n Kri̇stalli̇ Şi̇stleri̇ni̇n Ve Grani̇tleri̇ni̇n Petrografi̇k Etüdü, Ramiz Özocak

Bulletin of the Mineral Research and Exploration

No abstract provided.

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Mineralogische Untersuchungen Der Lagerstaette Von Piraziz Und Deren Genese, Güner Aslaner, Ahmet Çağatay Oct 1973

Mineralogische Untersuchungen Der Lagerstaette Von Piraziz Und Deren Genese, Güner Aslaner, Ahmet Çağatay

Bulletin of the Mineral Research and Exploration

No abstract provided.

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Niveau D'Energie Et L'Amplitude Dans Un Milieu A Vitesse Lineaire, Turan Kayiran Oct 1973

Niveau D'Energie Et L'Amplitude Dans Un Milieu A Vitesse Lineaire, Turan Kayiran

Bulletin of the Mineral Research and Exploration

No abstract provided.

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Preliminary Note On The Vertebrate Fauna Of Bayraktepe, Southeast Of Çanakkale (Dardanelles), İbrahim Tekkaya Oct 1973

Preliminary Note On The Vertebrate Fauna Of Bayraktepe, Southeast Of Çanakkale (Dardanelles), İbrahim Tekkaya

Bulletin of the Mineral Research and Exploration

No abstract provided.

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Ti̇trasyon Metodu İle Ci̇va Tayi̇ni̇, Mehmet Yildiz Oct 1973

Ti̇trasyon Metodu İle Ci̇va Tayi̇ni̇, Mehmet Yildiz

Bulletin of the Mineral Research and Exploration

No abstract provided.

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Migmatites In The Gördes Area, Mehmet Ayan Oct 1973

Migmatites In The Gördes Area, Mehmet Ayan

Bulletin of the Mineral Research and Exploration

No abstract provided.

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Endüksi̇yon Polari̇zasyon (Ip) İle Elektroli̇ti̇k Vi̇skozi̇te Ve İyon İletkenli̇kleri̇ Arasindaki̇ Bağintilarin Araştirilmasi*, Ali Keçeli̇ Oct 1973

Endüksi̇yon Polari̇zasyon (Ip) İle Elektroli̇ti̇k Vi̇skozi̇te Ve İyon İletkenli̇kleri̇ Arasindaki̇ Bağintilarin Araştirilmasi*, Ali Keçeli̇

Bulletin of the Mineral Research and Exploration

No abstract provided.

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Geology Of The Western Part Of Antalya Bay*, Adnan Kalafatçioğlu Oct 1973

Geology Of The Western Part Of Antalya Bay*, Adnan Kalafatçioğlu

Bulletin of the Mineral Research and Exploration

No abstract provided.

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X-Ray Scattering From Gaseous 3he And 4he At Small Momentum Transfer, Robert Hallock Oct 1973

X-Ray Scattering From Gaseous 3he And 4he At Small Momentum Transfer, Robert Hallock

Robert Hallock

Several experiments are described in which the structure factor S(k) was determined for gaseous 3He and 4He at temperatures near 5 K. In the momentum-transfer range 0.15

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Press Reports, Walter A. Lawrance Oct 1973

Press Reports, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

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Upper Androscoggin River, Walter A. Lawrance Oct 1973

Upper Androscoggin River, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

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Lower Androscoggin River, Walter A. Lawrance Oct 1973

Lower Androscoggin River, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

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Computer Sheets, Walter A. Lawrance Oct 1973

Computer Sheets, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

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Prefix Codes, Trees And Automata, Jean-Louis Lassez Oct 1973

Prefix Codes, Trees And Automata, Jean-Louis Lassez

Department of Computer Science Technical Reports

No abstract provided.

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Sociocultural Impact Of Reservoirs On Local Government Institutions, Philip Drucker, Jerry Eugene Clark, Lesker Dianne Smith Oct 1973

Sociocultural Impact Of Reservoirs On Local Government Institutions, Philip Drucker, Jerry Eugene Clark, Lesker Dianne Smith

KWRRI Research Reports

This study of the probable sociocultural impact of a proposed reservoir in central Kentucky on the institutions of local governments of a community adjacent to the reservoir utilizes anthropological concepts of social values and cultural and social change as well as anthropological research techniques. Data on observed impact on the same institutions in communities adjacent to two recently completed Kentucky reservoirs permit inferences as to probable directions and extent of reservoir-related change. Specific aspects of impact considered include: effects of reduction of the county tax base due to Federal acquisition of lands, including necessity for increased severity of taxes and …

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On A Boundary Value Problem For A Class Of Differential Equations With A Deviating Argument, V. Lakshmikantham, Jerome Eisenfeld Oct 1973

On A Boundary Value Problem For A Class Of Differential Equations With A Deviating Argument, V. Lakshmikantham, Jerome Eisenfeld

Mathematics Technical Papers

Recently, J. Chandra [1] obtained comparison estimates for differential equations with deviating argument (1) [see pdf for notation] on the interval I: to [see pdf for notation] , where [see pdf for notation] is a given continuous function defined on a suitable interval (containing I ), together with the boundary conditions (2) [see pdf for notation] for [see pdf for notation] The class of BVP (1) - (2) is incorporated in a larger class discussed in [3]. The introduction in [1] of a maximal solution has furnished comparison results and an iterative procedure for obtaining solutions. The use of the …

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Comparison Principle And Non Linear Contract In Abstract Spaces, V. Lakshmikantham, Jerome Eisenfeld Oct 1973

Comparison Principle And Non Linear Contract In Abstract Spaces, V. Lakshmikantham, Jerome Eisenfeld

Mathematics Technical Papers

The theory of differential and integral equations exploits comparison and iterative techniques which do not fall under the Contractive Mapping Principle. For they make use of partial orderings and maximal solutions; concepts which have no significance in a metric space. These methods take their proper place in the theory of cones [1], [2]. In this paper, Banach's Contraction Mapping Principle and comparison and iterative methods are brought together under a single roof which houses various results from the theory of differential equations [3], in addition to an interesting generalization of Banach's Theorem [4]. One 'It thus led, in a natural …

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Services Available To Admissions Office From Data Processing, Shirley Grant Oct 1973

Services Available To Admissions Office From Data Processing, Shirley Grant

Honors Theses

By using computer technology, such as punch cards, college admissions work flow can be better managed.

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