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Articles 288931 - 288960 of 294596
Full-Text Articles in Physical Sciences and Mathematics
The Monadnock Volume 38, June 1964, Clark University Geographical Society
The Monadnock Volume 38, June 1964, Clark University Geographical Society
The Monadnock (Clark Geographical Society)
Volume 38 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).
On The Solar Magnetic Field In Inter-Planetary Space, Jacqueline H. Hill
On The Solar Magnetic Field In Inter-Planetary Space, Jacqueline H. Hill
Earth and Planetary Sciences ETDs
The purpose of this thesis is to determine, experimentally and theoretically, an axially symmetric current distribution which would simulate the currents believed to flow in interplanetary space around the sun. The general magnetic field of the sun is assumed to originate as a dipole field which induces currents in the plasma of the solar atmosphere. The dipole field is in turn modified by the induced currents. This phenomenon is often described in terms or a diamagnetism of the plasma. In the limiting case, this diamagnetism would almost completely prevent the inducing field from penetrating the plasma.
Paleoecology Of Pseudozaphentoides Verticillatus (Barbour) In The Plattsmouth Limestone (Pennsylvanian), Robert Francis Diffendal Jr.
Paleoecology Of Pseudozaphentoides Verticillatus (Barbour) In The Plattsmouth Limestone (Pennsylvanian), Robert Francis Diffendal Jr.
Open Access Master's Theses (through 2010)
The purpose of this paper is to (1) delineate precisely the exact areal distribution and stratigraphic position within the Plattsmouth limestone member of any occurrence of Pseudozaphrentoides verticillatus (Barbour) and (2) to study the abiotic and biotic aspects of the Plattsmouth limestone in order to offer some inferences as to the paleoecological significance of these occurrences.
The Plattsmouth limestone in Nebraska is exposed in numerous quarries along the sides of the Weeping Water valley and along the Missouri River bluffs from Plattsmouth, Nebraska south to the Queen Hill quarry. Within the Plattsmouth, corals rapidly diminish in number away from the …
A Study Of The Effect Of Varying Serum Phenylalanine Levels On Changes In Intelligence Quotient, Darlene Imai Manullang
A Study Of The Effect Of Varying Serum Phenylalanine Levels On Changes In Intelligence Quotient, Darlene Imai Manullang
Loma Linda University Electronic Theses, Dissertations & Projects
Data from thirty medical records of phenylketonuric children under treatment were investigated to determine at which serum phenylalanine level (0-3.9 mg. %, 4-7.9 mg %, 8-11.9 mg. %, greater than 12 mg. %) there would be the greatest increase in intelligence. The children involved in the study were divided into the following groups according to the age dietary treatment was initiated: 0 through 5 months, 6 through 11 months, 12 through 23 months, and over 2 years of age.
Among 6 patients who were placed on the diet during the first 5 months of life, it appears that the optimal …
Falls Sustained By Patients In A Selected Nursing Home, Katty Joy Fenton
Falls Sustained By Patients In A Selected Nursing Home, Katty Joy Fenton
Loma Linda University Electronic Theses, Dissertations & Projects
This study was done to learn how the incidence of falls was related to certain, selected factors such as ambulatory state, sex, location of occurrence and time of occurrence in the nursing home chosen for the study and to make recommendations for increasing the safety of nursing home patients.
The descriptive-survey was the method used in the study. The data were made available in the form of 235 incident reports which had been collected over a five-year period in the selected nursing home. There were 213 of these records which described falls of various types so the study was limited …
Student's Awareness Of Covert Needs Of Patients In A General Hospital, Elizabeth Liston Hedrick
Student's Awareness Of Covert Needs Of Patients In A General Hospital, Elizabeth Liston Hedrick
Loma Linda University Electronic Theses, Dissertations & Projects
The purpose of this study was to ascertain whether an introduction course in psychiatric nursing for beginning students would increase their awareness of the covert nursing needs of the hospitalized patient.
Literature was reviewed to find out what had been written concerning covert needs, how one could discern them and to determine the need of the patient as an individual.
Using the problem solving method, a tool was prepared to test the ability to identify covert nursing problems. A situational test was developed from experiences of seven hospitalized patients. A pilot study was conducted to perfect the tool.
The sample …
A Survey Of Physicians' Opinions Of The Nurse's Role And Ideal Characteristics, Vaneta Mabley Condon
A Survey Of Physicians' Opinions Of The Nurse's Role And Ideal Characteristics, Vaneta Mabley Condon
Loma Linda University Electronic Theses, Dissertations & Projects
The purpose of this study was to obtain physicians' opinions concerning the registered nurse's role and ideal characteristics. A review of literature was done and a pilot study was conducted. The descriptive survey method was used. The opinions of seventy-one internists on the staffs of two hospitals connected with a church related university were; obtained through use of a questionnaire. Analysis of the data was made by computer, by counts and by an item analysis. Forty-one of the physicians in the study were graduates of the school of medicine of the selected university and were Seventh-day Adventist in religious belief. …
The Incidence Of Cancer Of The Cervix In A Selected Group Of Women, Charleene W. Riffel
The Incidence Of Cancer Of The Cervix In A Selected Group Of Women, Charleene W. Riffel
Loma Linda University Electronic Theses, Dissertations & Projects
It was the purpose of this study to find out the incidence of cancer of the cervix in a selected group of Seventh-day Adventist women. This was to be accomplished by an exfoliative cytological survey of smears for cervical cancer and the relation of the incidence found to the age, race, marital status, pregnancy status, geographic origin and endocrine therapy of the participants. These participants were the 2248 women who had cervical and/or vaginal smears made while in San Francisco to attend a religious conference in July of 1962.
From a review of literature it was found that cancer of …
Job Termination Study, Violet G. Miller
Job Termination Study, Violet G. Miller
Loma Linda University Electronic Theses, Dissertations & Projects
This job termination study was done to find out the number of terminations and the reasons given for these terminations in a selected hospital. It was also done to determine the factors that were responsible for the decision of the employee to terminate. Both job related and non job related factors were studied. By studying these reasons and factors, nursing service administration may come to a better understanding of those areas within the working unit and relationships that need to have further study.
The method of study was the descriptive survey. The study had two sources of data, and two …
The Relationship Of Central Venous Pressure To Hemorrhage In Open Heart Surgery, Mable Reynolds
The Relationship Of Central Venous Pressure To Hemorrhage In Open Heart Surgery, Mable Reynolds
Loma Linda University Electronic Theses, Dissertations & Projects
The problem of this study was to review 100 open heart surgical cases in a selected hospital to determine the changes occurring in central venous pressure in relation to blood loss.
The review of literature revealed that central venous pressure is an important factor in determining immediate postoperative care of open heart surgical patients. If central venous pressure falls below the normal range of 5 to 10 centimeters of water, hemorrhage is suspected. If central venous pressure is elevated between 15 and 20 centimeters of water, cardiac tamponade is suspected.
The descriptive survey method of research was used. Medical records …
A Measurement Of The Spin Relaxation Time Of Optically Pumped Rubidium Vapor, Robert Oliver Breault
A Measurement Of The Spin Relaxation Time Of Optically Pumped Rubidium Vapor, Robert Oliver Breault
Masters Theses
Chapter I
The Problem and Atomic Energy Levels
In 1949 Francis Bitter proposed a method for optcally detecting radio frequency resonance. That same year Alfred Kastler, Fcole Normale Superiéure, Paris, France, introduced a technique, which he called "Optical Pumping", of concentrating atoms in some of the Zeeman sublevels of one of the hyperfine state levels of the ground state. These two experiments are the basis of research involving optical methods of atomic orientation and of magnetic resonance.
Force-On-The-Wall Calculations For One-Dimensional Dense Gases With Intermolecular Potentials., Thomas Daniel Butler
Force-On-The-Wall Calculations For One-Dimensional Dense Gases With Intermolecular Potentials., Thomas Daniel Butler
Physics & Astronomy ETDs
The theoretical study of dense gases with strong intermolecular forces is impeded by lack of sufficient experimental which to compare predictions of the properties. High speed computers can supply this information by calculating the detailed dynamics of molecular assemblages, thereby taking the place of an actual physical experiment. This information supplied by the computers not only can test the validity of existing theories, but also it can indicate directions for possible improvement in the theoretical approximations.
In order to show the adaptability of computers to this task, this thesis deals with the theoretical and computer-experimental study of the force exerted …
Stabilization Of A Balloon-Borne Package, Gary W. Tomlinson
Stabilization Of A Balloon-Borne Package, Gary W. Tomlinson
Physics & Astronomy ETDs
It is desirable in certain applications of balloon-borne systems to stabilize the apparatus against rotation about the vertical axis and against tilting. The method of stabilization which will be discussed in this paper involves the use of a set of three gyroscopes which provide a reaction to any torques which would tend to rotate or tilt the package. A model was constructed which demonstrates the feasibility of this method. If the system is to be used for some type of astronomical measurement it may also be desirable to scan a portion of the sky at a constant rate. A method …
The Synthesis And Evaluation Of Some 2-Arylindenes And 2-Aryl-3h-Benz[E]Indenes As Liquid Scintillation Solutes, James Leslie Schornick
The Synthesis And Evaluation Of Some 2-Arylindenes And 2-Aryl-3h-Benz[E]Indenes As Liquid Scintillation Solutes, James Leslie Schornick
Chemistry and Chemical Biology ETDs
A scintillator, in the chemical sense, is a system which can convert radioactive particle energy to visible and near ultraviolet photon energy. A phenomenon related to scintillation is fluorescence. The difference between scintillation and fluorescence is the source of excitation energy. In the case of scintillation, the exciting energy comes from radioactive particles, while in fluorescence, the exciting energy comes from ultraviolet light.
The Diffraction Of Polarized Light By A Conducting Straight Edge In The Geometrical Shadow, Richard W. Morris
The Diffraction Of Polarized Light By A Conducting Straight Edge In The Geometrical Shadow, Richard W. Morris
Physics & Astronomy ETDs
Theory predicts that the diffraction pattern of a conduction straight edge will show deviations from the diffraction pattern of a non-conductor, and further, that these deviations will depend upon the polarization of the incident light. In this experiment the diffraction of polarized, coherent light from a monochromatic source by a metallic straight edge was studied in a region near the edge of the geometrical shadow. Two orientations of the polarization were used: one with the E vector of the polarized light parallel to the diffracting edge, and the other with the E vector perpendicular to the diffracting edge. Three different …
Determination Of The Orientation Of Air-Borne Instrumentation, David G. Miller
Determination Of The Orientation Of Air-Borne Instrumentation, David G. Miller
Physics & Astronomy ETDs
Air-borne devices have been used as a means of observation and collection of information in meteorology and atmospheric physics for many years. Only in recent years, however, has the increasing use of such devices been made for astronomical observations. A balloon-borne telescope at 80,000 to 100,000 feet, for example, has many advantages: the distortion, absorption and scattering of light by the atmosphere and the dependence on weather conditions, which plagues earthbound observations, are essentially eliminated. It seems apparent that astronomical observation will eventually be able to be made only by airborne or satellite observatories. The decline in usefulness of the …
Single Crystals Of "Globular Molecules" From The Melt, Charles A. Aeby
Single Crystals Of "Globular Molecules" From The Melt, Charles A. Aeby
Physics & Astronomy ETDs
This thesis is an investigation of the possibility of growing single crystals of dl-camphene, d-camphor, and cyclohexanol. These are organic compounds, characterized by "globular molecules", which form plastic crystals immediately below their melting point. Single crystals were desired in order to study, by ultra-sound techniques, properties pertinent to the evaluation of the elastic constants of these crystals. Primary emphasis was placed on growing crystals of dl-camphene, since it is conveniently handled at room temperatures.
Methods of growth from the melt were chosen because of the relatively fast growth rates, compared to vapor or solution techniques. Secondary considerations were simplicity of …
Large Angle Scattering Of Polarized Light By A Straight Edge, Theodore S. Fahlen
Large Angle Scattering Of Polarized Light By A Straight Edge, Theodore S. Fahlen
Physics & Astronomy ETDs
The purpose of this experiment was to observe the light diffracted into the geometrical shadow of a sharp and a blunt metallic straight edge using a polarized, very intense, highly coherent light source. The light source used was a ruby laser, and a Nicol prism was used to linearly polarize the laser light. Two polarizations of the laser beam were used: One with the E vector of the incident beam oriented parallel to the edge of the straight edge, and the other with the E vector oriented perpendicular to the edge. One photomultiplier tube was used to monitor the pulsed …
Phase Changes In Solid Cyclohexanol, William T. Griffith
Phase Changes In Solid Cyclohexanol, William T. Griffith
Physics & Astronomy ETDs
Cyclohexanol is one of a group of organic compounds which exist in a “plastic crystal" solid phase, which is intermediate in its properties between the liquid phase and the solid phases stable at lower temperatures. It has been well established that the odd properties of the plastic crystal phase are due to the relatively unhindered rotation of the molecules about their lattice positions. At temperatures often considerably below the freezing point, these compounds undergo a solid-solid phase transformation in which this rotational freedom is lost. The heats and entropies of transformation at this lower transition point are generally larger than …
Variations In The Dielectric Constants Of Camphor And Camphene Under Pressure, Donald R. Wheeler
Variations In The Dielectric Constants Of Camphor And Camphene Under Pressure, Donald R. Wheeler
Physics & Astronomy ETDs
Camphor and camphene are two of a group of substances known as plastic solids. The plastic solids are all characterized by the ease with which they can be deformed. It has been suggested that this property is a result of a great number of mobile vacancies in the crystal lattice. Nabarro and Herring explain the "creep", characteristic of metals, in this way.
On The Optimal Search Problem, Wallace E. Franck Jr.
On The Optimal Search Problem, Wallace E. Franck Jr.
Mathematics & Statistics ETDs
Suppose a searcher is at a given point on a line and wishes to locate an object which is known to be somewhere on the line. Suppose further that there is a probabilistic law which governs the location of the object on the line. The searcher can only locate the object by traveling to the point where it is. He desires to formulate a search plan which will minimize the average distance traveled before locating the object. The only initial choice he has is as to which direction to go. Then he must decide how far to go before turning …
Effects Of Oxygen Content Of Admitted Gases In Sulfide Flotation, Brian J. Boyle
Effects Of Oxygen Content Of Admitted Gases In Sulfide Flotation, Brian J. Boyle
Bachelors Theses and Reports, 1928 - 1970
No abstract provided.
Methods Of Studying The Effects Of Frothers, Frank L. Bazzanella
Methods Of Studying The Effects Of Frothers, Frank L. Bazzanella
Bachelors Theses and Reports, 1928 - 1970
No abstract provided.
The Geology Of The Northern And Eastern Parts Of The Ladron Mountains, Socorro County, New Mexico., Bruce A. Black
The Geology Of The Northern And Eastern Parts Of The Ladron Mountains, Socorro County, New Mexico., Bruce A. Black
Earth and Planetary Sciences ETDs
The Laron Mountains are & westward-tilted fault block and an important western bounding structure of the Rio Grande depression in the Albuquerque-Belen basin. The main massif is a complex of both igneous and metamorphic Precambrian rocks. It consists of a thick sequence of steeply east-dipping quartzite & and schists which are predominantly a product of low- to medium- grade regional Precambrian metamorphism. Granitic gneiss is ptygmatically folded with abundant schist remnant in a large area on the eastern flank of the mountains and represents an ultrametamorphic product of anatexis. All metamorphic rocks have been invaded by two later Precambrian granites. …
The Nuclear-Active Component Of Extensive Air Showers, E. Royce Fletcher
The Nuclear-Active Component Of Extensive Air Showers, E. Royce Fletcher
Physics & Astronomy ETDs
In 1900 Wilson (1900; 1901a; 1901b) in England and Elster and Geitel (1900) in Germany began a series of experiments which were ultimately to lead to the discovery of cosmic rays. Using an electroscope mounted in a grounded metal box, they were able to show that the air in a closed vessel has a slight residual conductivity. After careful experiments had eliminated insulator leakage and charged dust particles as possible sources of the observed current, Wilson speculated that the ionization might be due to the presence of some very penetrating radiation coming from outside the atmosphere. Unfortunately, however, he abandoned …
Deflection Of An Electron Beam By Photons, Danning W. Bloom '64
Deflection Of An Electron Beam By Photons, Danning W. Bloom '64
Honors Projects
The purpose of this paper was to review information, both experimental and theoretical, concerning the momentum carried by light and its effect on free electrons.
Simulation Of Mathematical Models In Genetic Analysis, Dinesh Govindal Patel
Simulation Of Mathematical Models In Genetic Analysis, Dinesh Govindal Patel
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
In recent years a new field of statistics has become of importance in many branches of experimental science. This is the Monte Carlo Method, so called because it is based on simulation of stochastic processes. By stochastic process, it is meant some possible physical process in the real world that has some random or stochastic element in its structure. This is the subject which may appropriately be called the dynamic part of statistics or the statistics of "change," in contrast with the static statistical problems which have so far been the more systematically studied. Many obvious examples of such processes …
Geomorphic Features And History Of The Lower Part Of Logan Canyon, Utah, Edmund J. Williams
Geomorphic Features And History Of The Lower Part Of Logan Canyon, Utah, Edmund J. Williams
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Logan Canyon is located east of Logan, Utah, in the Bear River Range. The lower part of Logan Canyon is considered that section of the canyon from its mouth upstream to Tony Grove Canyon, a distance of 22 miles1, Figure 1. Some tributary canyons of the lower part of Logan Canyon have been included in this investigation because of their relationship to Logan Canyon. Grassy Flat Canyon, a south tributary of Logan Canyon 4.4 miles from Logan, exhibits several geomorphic features related to the geology of Logan Canyon. Because of its extensive use and close association with Logan …
A Development Of The Number System, Janet R. Olsen
A Development Of The Number System, Janet R. Olsen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This paper is based on Landau's book "Foundations of Analysis" which constitutes a development of the number system founded on the Peano axioms for natural numbers.
Molybdenum-L-Histidine Complexes, Jiing-Yun Lee
Molybdenum-L-Histidine Complexes, Jiing-Yun Lee
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
L- Histidine is a very important amino acid and is widely distributed in living systems. In the growth and multiplication of animal cells, it was found that L-histidine is one of the amino acids that must be present. From the kinetic studies of certain enzymes such as chymotrypsin and ribonuclease, it has been proposed that the imidazolyl group of the histidine residue may serve as the basic electron donor, and that the histidine residue in some cases may be the active site of the enzyme. The interactions of L-histidine with heavy metal ions, including Ni (II) (1), Zn (II) (1, …