Physical Fitness and Job Stress Assessment in Security Officers from the University of Costa Rica

Get Up & Move! is a program created by University of Illinois Extension to address childhood obesity. It provides ready-to-use materials for youth leaders to promote healthy lifestyles through physical fitness and healthy eating. The impact of the program on participants’ physical activity was evaluated to see whether involvement produces an increase in physical activity to the USDA recommended 60 minutes per day. It was found that a significant increase in minutes of physical activity occurred in participants from an average of 51.88 minutes per day to an average of 58.84 minutes per day.

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Combate integrado de la pudrición radical de la papaya (Phytophthora sp.) a nivel de vivero.

Agronomía Mesoamericana ◽

10.15517/am.v9i1.24645 ◽

2016 ◽

Vol 9 (1) ◽

pp. 72 ◽

Cited By ~ 1

Author(s):

Lenín Ramírez ◽

Alfredo Durán ◽

Dennis Mora

Keyword(s):

Costa Rica ◽

Plant Height ◽

Organic Fertilizer ◽

Germination Percentage ◽

Soil Microorganism ◽

Control Treatment ◽

Fresh Weight ◽

Pathogenic Agent ◽

Bacteria And Fungi ◽

The University

The effect of several strategies - alone and integrated - on the control of the Phytophthora sp. fungae, which causes radical rotting of papaya fruits, was evaluated under nursery conditions. The experiment took place between August 1994 and March 1995 at the University of Costa Rica's Estación Experimental Fabio Baudrit, located in Alajuela, Costa Rica. The treatments applied were: sun heat for 30 days; organic fertilizer made from hen droppings; etridiazole fungicide; and the following combinations: sun heat + etridiazole + organic fertilizer; etridiazole + organic fertilizer; sun heat + etridiazole; sun heat + etridiazole + organic fertilizer, and finally, an inoculated control treatment. Soil rows were made, and then they were innoculated with the pathogenic agent, and finally the aforementioned treatments were applied. The treated soils were bagged separately. The Solo Sunrise Hawaiian variety was planted in bags. The percentage of gerrnination, stem diameter at soillevel, plant height, radical system fresh weight, and severity of radical rotting were evaluated three months later. In addition, the effect of the treatments on beneficent soil microorganism populations (actinomyces, protozoa, bacteria, and fungi) was evaluated, as well as those of pathogenic populations. Organic fertilizer increased plant strength. All treatments affected germination; the innoculated control had the greatest germination percentage. Treatments containing organic fertilizer affected germination most.

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A regional Stokes-Helmert geoid determination for Costa Rica (GCR-RSH-2020): computation and evaluation

Contributions to Geophysics and Geodesy ◽

10.31577/congeo.2020.50.2.3 ◽

2020 ◽

Vol 50 (2) ◽

pp. 223-247

Author(s):

Jaime GARBANZO-LEÓN ◽

Alonso VEGA FERNÁNDEZ ◽

Mauricio VARELA SÁNCHEZ ◽

Juan Picado SALVATIERRA ◽

Robert W. KINGDON ◽

...

Keyword(s):

Costa Rica ◽

Gravity Data ◽

Accurate Determination ◽

Costa Rican ◽

Geopotential Model ◽

Geoid Model ◽

Satellite Gravity ◽

Common Solution ◽

The Difference ◽

The University

GNSS observations are a common solution for outdoor positioning around the world for coarse and precise applications. However, GNSS produces geodetic heights, which are not physically meaningful, limiting their functionality in many engineering applications. In Costa Rica, there is no regional model of the geoid, so geodetic heights (h) cannot be converted to physically meaningful orthometric heights (H). This paper describes the computation of a geoid model using the Stokes-Helmert approach developed by the University of New Brunswick. We combined available land, marine and satellite gravity data to accurately represent Earth's high frequency gravity field over Costa Rica. We chose the GOCO05s satellite-only global geopotential model as a reference field for our computation. With this combination of input data, we computed the 2020 Regional Stokes-Helmert Costa Rican Geoid (GCR-RSH-2020). To validate this model, we compared it with 4 global combined geopotential models (GCGM): EGM2008, Eigen6C-4, GECO and SGG-UM-1 finding an average difference of 5 cm. GECO and SGG-UM-1 are more similar to the GCR-RSH-2020 based on the statistics of the difference between models and the shape of the histogram of differences. The computed geoid also showed a shift of 7 cm when compared to the old Costa Rican height system but presented a slightly better fit with that system than the other models when looking at the residuals. In conclusion, GCR-RSH-2020 presents a consistent behaviour with the global models and the Costa Rican height systems. Also, the lowest variance suggests a more accurate determination when the bias is removed.

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New Constrained Predictive PID controller for packet dropouts in Wireless Networked Control Systems ⁎ ⁎M. Chacón wishes to thank the financial support from the University of Costa Rica, MICITT and CONICT Costa Rica.

IFAC-PapersOnLine ◽

10.1016/j.ifacol.2018.06.176 ◽

2018 ◽

Vol 51 (4) ◽

pp. 811-816

Author(s):

Mercedes Chacón Vásquez ◽

Reza Katebi

Keyword(s):

Costa Rica ◽

Control Systems ◽

Financial Support ◽

Pid Controller ◽

Networked Control Systems ◽

Networked Control ◽

Packet Dropouts ◽

The University

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The Maugeri Stress Index – reduced form: a questionnaire for job stress assessment

Neuropsychiatric Disease and Treatment ◽

10.2147/ndt.s107030 ◽

2017 ◽

Vol Volume 13 ◽

pp. 917-926 ◽

Cited By ~ 3

Author(s):

Davide Massidda ◽

Ines Giorgi ◽

Giulio Vidotto ◽

Salvatore Tringali ◽

Marcello Imbriani ◽

...

Keyword(s):

Job Stress ◽

Stress Index ◽

Reduced Form ◽

Stress Assessment

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“Bee-Flower-People Relationships, Field Biologists, and Conservation in Northwest Urban Costa Rica and Beyond.”

Zoosymposia ◽

10.11646/zoosymposia.12.1.4 ◽

2018 ◽

Vol 12 (1) ◽

pp. 18-28

Author(s):

G. W. FRANKIE ◽

R. E. COVILLE ◽

J. C. PAWELE ◽

C. C. JADALLAH ◽

S. B. VINSON ◽

...

Keyword(s):

Costa Rica ◽

Urban Areas ◽

Land Use Changes ◽

Field Research ◽

Urban Environments ◽

Dry Forest ◽

University Of California ◽

Forest Region ◽

Undisturbed Forest ◽

The University

The forests of Costa Rica are rich in a wide variety of pollinator types and a very diverse flora that supports them. Our research group from the University of California, Berkeley and Texas A & M University, College Station has been researching the ecology of one pollinator group, the bees, in the northwest Guanacaste dry forest region since 1969. Much natural forest existed in this area when we first began the work. But, many land use changes have occurred over the years to present day to the point that it is difficult to find tracts of undisturbed forest suitable for field research, especially those not affected by wildfires, which are now common. Further, urban areas in the region continue to grow with increasing numbers of people populating the region. In this paper we provide an overview of our past bee-flower work for a historical perspective, and then weave in people that have now become an obvious ecological component of current bee-flower relationships. We also explore new questions that have become relevant through time, especially those related to researchers and potential conservation opportunities to share their stories with audiences that may extend their knowledge for practical use. Finally, we propose that researchers plan to devote some of their precious time establishing relationships with people in conserving what is left of bee-flower relationships in urban environments in Guanacaste and beyond in the country. Avenues for extending this knowledge are explored in this paper.

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