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1.
During 1998-2001, field studies were done to assess the efficacy of an integrated pest management (IPM) program using an action threshold and "reduced-risk" insecticides. The IPM program was compared with a conventional grower-based program. Program performance was evaluated based on management of Trichoplusia ni (Hiibner), Pieris (=Artogeia) rapae (L.), and Plutella xylostella (L.), as well as the economic impact of each program on net returns. The action threshold used in the IPM program consisted of 10% plants infested with T. ni larvae, based on previous small-plot experiment station trials. In all years of the study, the IPM program resulted in significantly lower percentages of plants infested than the conventional program or untreated check. The mean reduction in insecticide applications for the IPM program compared with the conventional program was 23.5%, whereas, on average, the costs of the IPM program were 46.0% higher than the conventional program. Pest reduction in the IPM program resulted in an average of 10.5% higher marketable yields than the conventional program. Percentages of marketable heads in the IPM program ranged from 82 to 99% and from 63 to 96% in the conventional program. Mean net returns for the IPM program exceeded the conventional program by $984.20/ha. These results indicated that the IPM program reduced insecticide use overall, even though costs of the IPM program, with either spinosad or indoxacarb, were sometimes higher. Overall, net returns of the IPM program were higher due to active pest scouting, improved application timing, and increases in marketable yield. Given the potential decrease in insecticide applications and increases in net profit resulting from this IPM program, additional analyses should be conducted to quantify the economic risk, or consistency of the results, to fully evaluate the benefits of the IPM program compared with a conventional program.  相似文献   

2.
The Katalyst intervention program was piloted in fifth-grade classrooms at two Appalachian schools during the 2017–18 academic year as a potential educational resource to tackle the rising rates of obesity and chronic diseases in this region. The program consisted of four 60-minute modules, each based on a specific organ system. Each module incorporated hands-on lessons in physiology with an emphasis on preventing chronic disease through diet, nutrition, physical activity, and abstinence from drug and tobacco use. The modules were led by medical students and undergraduate volunteers who completed a two-day training. A 37-item survey assessing knowledge and perceptions regarding healthy lifestyles was administered to fifth grade participants prior to and following the intervention in order to assess the impact of the program. Additionally, educators at intervention schools were given a questionnaire post-intervention to provide feedback on the program. This paper describes the rationale, program design and execution, and conclusion of the Katalyst intervention program. It is anticipated that this program will reinforce current educational standards regarding diet, nutrition and physical activity in order to empower target students to establish healthy lifestyle behaviors and that programs modeled after the Katalyst curriculum may serve as a novel, viable option to health educators.  相似文献   

3.
In the present study, 40- to 60-year-old women with climacteric symptoms were placed on a 12-week structured education and exercise program to ascertain the effects of this program on climacteric symptoms, quality of life (QOL), and attitude towards exercise. A total of 35 women served as subjects. Twenty women were enrolled in an educational and exercise program that involved learning about menopause and participating in physical activity at least three times a week (Group E). For comparison, the other 15 women did not participate in this program and were instructed to refrain from exercising during study period (Group C). The effects of the 12-week interventional program on climacteric symptoms, QOL, and attitude towards exercise were thereby investigated. The program demonstrated significant effects on climacteric symptoms in terms of Kupperman index and psychosomatic symptoms, especially paresthesia and nervousness. In other words, climacteric symptoms improved significantly in Group E. Furthermore, scores for QOL and attitude towards exercise improved in Group E after the 12-week program; however, these trends did not reach statistical significance. Hence, the 12-week structured education and exercise program was shown to be effective in alleviating climacteric symptoms.  相似文献   

4.
The taxonomic knowledge gap and lack of knowledge on species-level diversity has been a global concern within conservation biology through the recent two decades. As a national response, Finland has funded a Research Program of Poorly Known and Threatened Forest Species from the year 2003. The program is an essential part of the knowledge base applied in Finnish forest policy. The present paper evaluates the outcomes of the program, covering scientific publication, training, taxonomic coverage, increased knowledge on boreal forest biodiversity and awareness rising. The ongoing program has been funded by 6.5 million Euros to date including 59 projects. The program has produced 19 master’s theses and six doctoral theses. Due to their expertise the graduated biologists have been employed in environmental administration or become researchers. The program has produced 163 refereed scientific articles, 104 of which are recognized by the Web of Science; with an average impact factor of 1.81. The results of the program include 15 genera and 348 species new to science, and 60 genera and 1,664 species to Finland’s list of known species. Due to new knowledge gathered in the program 3,000–4,000 species could be included in the most recent National Red List assessment. The publishing of identification books on local language has proved as the most effective way of advancing general species knowledge among the public and end-users. The high number of new species to science from a biodiversity-poor boreal country describes the scale of the huge work still be done in describing the global species-level diversity. The program has achieved its goals in many ways, but the program leaves out a large part of the species that do not occur in forest biotopes. Moreover, the funding has decreased through the years despite the international goal of halting the world’s biodiversity loss has not been met.  相似文献   

5.
Community based rehabilitation program in people with musculoskeletal conditions was evaluated using Dartmouth COOP Functional Health Assessment Charts/WONCA (COOP/WONCA charts). The program consisted of educative and training protocol in a primary healthcare setting. It had two parts, both with six visits, in the first part three times a week and in the second part once a week. Clients with musculoskeletal conditions (N = 204) were included if they agreed to take active part in the rehabilitation process. The first part of the program was completed by 77 clients, and complete program by 52 subjects. Positive changes on the COOP/WONCA charts were achieved by more than 50% of the subjects that completed the program, in all categories but Social Activities. The program proved effective in terms of short-term evaluation with COOP/WONCA charts in those that complete the program. The high dropout rate and long-term efficiency have yet to be investigated.  相似文献   

6.
A contig assembly program based on sensitive detection of fragment overlaps.   总被引:23,自引:0,他引:23  
X Huang 《Genomics》1992,14(1):18-25
An effective computer program for assembling DNA fragments, the contig assembly program (CAP), has been developed. In the CAP program, a filter is used to eliminate quickly fragment pairs that could not possibly overlap, a dynamic programming algorithm is applied to compute the maximal-scoring overlapping alignment between each remaining pair of fragments, and a simple greedy approach is employed to assemble fragments in order of alignment scores. To identify the true fragment overlaps, the dynamic programming algorithm uses specially chosen sets of alignment parameters to tolerate sequencing errors and to penalize "mutational" changes between different copies of a repetitive sequence. The performance tests of the program on fragment data from genomic sequencing projects produced satisfactory results. The CAP program is efficient in computer time and memory; it took about 4 h to assemble a set of 1015 fragments into long contigs on a Sun workstation.  相似文献   

7.
TEFOOL/2, a program written in BASIC, is presented in this paper.The purpose of TEFOOL12 is to provide people interested in drugdesign with an easy-to-handle program where some of the mostimportant techniques in QSAR are included. The program permitsthe selection of the training series, performs regression calculationsand searches for optimum substituents. The latter is achievedby using either a Hansch's strategy or geometrical procedures.The program is interactive and can be implemented on an IBM-PCor compatible microcomputer. Although TEFOOL/2 has been developedfor its application in drug design studies, its great flexibilitymakes it suitable for application to any experimental designor optimization process. Received on November 22, 1988; accepted on March 21, 1989  相似文献   

8.
The program described analyses DNA histograms obtained in flow cytometry using the Gaussians method. The program is written in BASIC to run on a low-cost microcomputer. It utilizes a simple strategy to obtain good estimates of the parameters required for reducing the problem to a task solvable with linear least-squares methods. Features of the program are flexibility, since it is possible to choose different options for parametrization and spacing of Gaussians, and the fact that the operator is not required to provide interactive inspection or inputting parameter values. The capability and velocity of the program, in all its options, are tested and compared on a series of different (not computer-simulated) histograms obtained in our flow cytometry laboratory. Our results suggest that a fresh approach to parametrization may be useful.  相似文献   

9.
Outreach efforts by faculty members are oftentimes limited in scope due to hectic schedules. We developed a program to enhance science literacy in elementary school children that allows experts to reach a tremendous audience while minimizing their time commitment. The foundation of the program is a television series entitled "Desert Survivors." The episodes air on local cable access television and are available to teachers on DVD. Each episode features a guest expert who spotlights a particular organism and how that organism overcomes the myriad of hardships inherent to desert survival. Local classrooms are visited to solicit questions from students regarding the organism of interest. These videotaped questions are integrated into Desert Survivors television production and provide the guest expert with the basis to discuss the ecology, physiology, and evolutionary biology of the organism. The program is bolstered through the use of an interactive website. Assessment strategies are in place to ensure program efficacy. Herein, we describe the development of the program as a model for innovative outreach opportunities.  相似文献   

10.
Abstract

This article describes the implementation and evaluation of a sport-based life skills and community service program. The purpose of this investigation was to determine the impact of a combined life skills and community service program on adolescents' prosocial values. The program was part of a national golf and life skills enrichment academy for adolescents (n = 100). It was hypothesized that the life skills component would have a significant impact on adolescents' prosocial values and that participants (n = 42) who were involved in the community service component following the program, when compared to a comparison group (n = 23), would maintain their increased levels of prosocial values. Results indicated that the program had a significant positive impact on adolescents' prosocial values and that the community service experience positively impacted the adolescents' levels of empathic concern and social responsibility. These results are consistent with existing research on participating in community service.  相似文献   

11.
A computer program, ARAGORN, identifies tRNA and tmRNA genes. The program employs heuristic algorithms to predict tRNA secondary structure, based on homology with recognized tRNA consensus sequences and ability to form a base-paired cloverleaf. tmRNA genes are identified using a modified version of the BRUCE program. ARAGORN achieves a detection sensitivity of 99% from a set of 1290 eubacterial, eukaryotic and archaeal tRNA genes and detects all complete tmRNA sequences in the tmRNA database, improving on the performance of the BRUCE program. Recently discovered tmRNA genes in the chloroplasts of two species from the ‘green’ algae lineage are detected. The output of the program reports the proposed tRNA secondary structure and, for tmRNA genes, the secondary structure of the tRNA domain, the tmRNA gene sequence, the tag peptide and a list of organisms with matching tmRNA peptide tags.  相似文献   

12.
The smoking habits of Winnipeg school students were surveyed before and after a three-year program of health education on the hazards of smoking, directed to 8300 out of 48,000 students. The program consisted of informal approaches to students in elementary schools and a formal program of talks, lectures, films, and student participation for older students.There were fewer students at all ages who had never smoked a cigarette at the time of the second survey. There was a slight decrease in the number of regular smokers in high school, most marked in the school where the program was enthusiastically received and student participation was most active. A direct relationship between parental smoking and that of the student, and an inverse relationship between academic achievement and student smoking, were shown on both surveys. The majority of students believed that smoking caused lung cancer and other hazards to health, although this was less marked among smokers.The results indicated that an intensive program of health education directed to the teenagers in school was a potentially useful approach to the problem of cigarette smoking.  相似文献   

13.
A comprehensive DNA analysis computer program was described in the second special issue of Nucleic Acids Research on the applications of computers to research on nucleic acids by Stone and Potter (1). Criteria used in designing the program were user friendliness, ability to handle large DNA sequences, low storage requirement, migratability to other computers and comprehensive analysis capability. The program has been used extensively in an industrial-research environment. This paper talks about improvements to that program. These improvements include testing for methylation blockage of restriction enzyme recognition sites, homology analysis, RNA folding analysis, integration of a large DNA database (GenBank), a site specific mutagenesis analysis, a protein database and protein searching programs. The original design of the DNA analysis program using a command executive from which any analytical programs can be called, has proven to be extremely versatile in integrating both developed and outside programs to the file management system employed.  相似文献   

14.
LINKER: a program to generate linker sequences for fusion proteins   总被引:9,自引:0,他引:9  
The construction of functional fusion proteins often requires a linker sequence that adopts an extended conformation to allow for maximal flexibility. Linker sequences are generally selected based on intuition. Without a reliable selection criterion, the design of such linkers is often difficult, particularly in situations where longer linker sequences are required. Here we describe a program called LINKER which can automatically generate a set of linker sequences that are known to adopt extended conformations as determined by X-ray crystallography and NMR. The only required input to the program is the desired linker sequence length. The program is specifically designed to assist in fusion protein construction. A number of optional input parameters have been incorporated so that users are able to enhance sequence selection based on specific applications. The program output simply contains a set of sequences with a specified length. This program should be a useful tool in both the biotechnology industry and biomedical research. It can be accessed through the Web page http://www.fccc. edu/research/labs/feng/linker.html.  相似文献   

15.
A program (PREDITOP) for predicting the location of antigenic regions (or epitopes) on proteins is described. This program and the associated ones are written in Turbo Pascal and run on IBM-PC compatibles. The program contains 22 normalized scales, corresponding to hydrophilicity, accessibility, flexibility, or secondary structure propensities. New scales are easily implemented. An hydrophobic moment procedure has also been implemented in order to determine amphiphilic helices. The program generates a result file where the values represent a particular physicochemical aspect of the studied protein. PREDITOP can display one or several result files by simple graphical superimposition. Curve combinations can be done by the ADDITIO or MULTIPLI routines which create a new result file by adding or multiplying previously calculated files representing several propensities. The program is useful and efficient for identifying potential antigenic regions in a protein with the aim of raising antibodies against synthesized peptides which cross-react with the native protein.  相似文献   

16.
The quality of the sample set is absolutely essential in a morphometric analysis. In this paper a computer program is described which uses a nested analysis of variance in defining the sample. The program denotes those levels of the sampling protocol at which additional sampling should be performed to reduce the variance within the sample set. Furthermore, the program is written for use on a microcomputer which allows it to be used routinely in monitoring a sample set.  相似文献   

17.
A flexible new computer program for handling DNA sequence data.   总被引:9,自引:2,他引:7       下载免费PDF全文
A compact new computer program for handling nucleic acid sequence data is presented. It consists of a number of different subsets, which may be used according to a given code system. The program is designed for the determination of restriction enzyme and other recognition sites in correlation with translation patterns, and allows tabulation of codon frequencies and protein molecular weights within specified gene boundaries. The program is especially designed for detection of overlapping genes. The language, is FORTRAN and thus the program may be used on small computers; it may also be used without any prior computer experience. Copies are available on request.  相似文献   

18.
A FORTRAN IV program is described, which may be run interactively or in batch and which allows a user to obtain the frequency response amplitude ratio and phase resulting from the linear analysis of an eye movement system using sine wave stimuli. The response (eye position) signal may contain components contributed by the saccadic eye movements. The program can digitize analog signals and store data on a magnetic tape. With the aid of digital filters, the program can detect saccades without requiring any input parameters from the user. The program interpolates the saccade interval using a method of least square curve fitting with a sine wave. The interpolation is relatively noise immune and works well regardless of the stimulus frequencies and the width of a saccade interval. Moreover, the program can handle long duration of signals such as 90 min of data which covers about 5 cycles of a 0.001 Hz sine wave signal. Sample runs for the cases of 0.001 and 0.1 Hz are given. The resident driver and the overlayable segments of the program have been implemented on a DEC (Digital Equipment Corp.) LAB-11 minicomputer (PDP 11/20).  相似文献   

19.
The question of how youth become engaged or motivated is vital to youth development programs, because engagement influences not only program retention but the likelihood of youth gaining the benefits that programs offer. This article reports on an in-depth study aimed at generating grounded theory about the change process through which youth who are initially disengaged become motivated by program activities. Youth in a civic activism program were interviewed over a 4-month period and qualitative analyses were used to derive a model of this change process. This process was found to proceed from the youth forming a personal connection to the program's mission to becoming intrinsically motivated by work on program activities. The analyses suggested that peers and the adult leader played important roles in supporting motivational change at each stage. The model developed from the investigation draws on existing theories of motivation.  相似文献   

20.
Background and purposeThe study objective was to report our four-and-a half years experience (March 1 2011–August 15 2015) of a program to manage interruptions in fractionated radiotherapy treatments.MethodsA program was developed, based on a specific database, to manage treatment interruptions. Benefits of the program were analyzed in reference to previously published data. Analysis was also performed of two measures to reduce OTT prolongation and improve treatment outcomes: working on public holidays and conducting treatment unit maintenance on Saturdays.ResultsThe study included 2352 patients. Patients with head and neck cancer obtained the greatest benefit from the program, with a mean increase in TCP of 3.5% and a benefit of at least 4% in 45.6% of them. In prostate cancer patients, the likelihood of biochemical failure was reduced by a mean of 2.0% and was reduced by at least 4% in 19.7% of them. Application of the two proposed measures would have improved the TCP by a mean of 5.4% in head and neck cancer patients. The impact of the compensations program and proposed measures is lesser in the remaining cancer types studied.ConclusionsImplementation of a compensation program has a significant impact on patients with head and neck or prostate cancer but OTT prolongation remains excessive in many treatments. The introduction of fractions on public holidays would assist in the meeting of recommendations for these patients.  相似文献   

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