21 research outputs found

    SOIL FERTILITY EVALUATION OF COFFEE (Coffea spp.) PRODUCTION SYSTEMS AND MANAGEMENT RECOMMENDATIONS FOR THE BARAHONA PROVINCE, DOMINICAN REPUBLIC

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    ABSTRACT Reported yields in most coffee farms of the Barahona province in the Dominican Republic are relatively low (< 290 kg ha -1 parchment coffee). In general, coffee producers do not use diagnostic techniques such as soil testing. This fact prevents them from identifying the limiting factors (especially nutrients), complicates the work of coffee cultural management practices, and potentially reduces productivity and coffee quality. This study was designed to diagnose the fertility level of soils in coffee farms in the area of Barahona in 96 farms within an area of 637 hectares and design a nutrient management strategy. Soils from each farm were sampled and analyzed for soil fertility parameters. A survey was provided to farmers that permitted the collection of information regarding yields, management practices, and landscape features. Soils in the area were predominantly clayey. Soil pH varied between 4.61 and 7.69 and soil organic matter ranged between 3.29 and 10.9%. Exchangeable potassium levels were classified as deficient in all areas. The clustering of results identified two main components, which accounted for 76% of the variability of the data and the grouping into five communities by similarity of features. The results show that soil testing of this coffee coffee-growing region can be used as a tool to diagnose the soil fertility status and guide them in implementing management and fertilization recommendations

    Transcriptional and Epigenetic Substrates of Methamphetamine Addiction and Withdrawal: Evidence from a Long-Access Self-Administration Model in the Rat

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    Effective and ethical sales communication for pharmaceutical representatives

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    There are so many different communication styles utilized by pharmaceutical sales representatives. This thesis handles the quandary of whether those communication styles are not only effective among the interactions with medical providers, but whether those effective means of communicating are embedded with ethical communication as well. The theory of symbolic interactionism and the philosophical basis of persuasive speech expound on the methodology pharmaceutical sales representatives implement with the people he or she encounters. Medical providers also need to perceive that their encounters with pharmaceutical sales representatives are congruently effective and ethical interactions, which is revealed by qualitative research methods in the thesis. Lastly, the pharmaceutical sales representative's effective and ethical communication provides recommendations in how to maintain the proper perspective of keeping these medical interactions with the greatest credibility and reputation. Keywords: Pharmaceutical sales representative (PSR), symbolic interactionism, persuasive speech, nonverbal communication, ethical communication, creating realit

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    Effects of Nasal or Oral Breathing on Anaerobic Power Output and Metabolic Responses

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    International Journal of Exercise Science 10(4): 506-514, 2017. Nasal and oral exclusive breathing modes have benefits and drawbacks during submaximal exercise. It is unknown whether these responses would extend to anaerobic work performed at high intensity. Nine individuals (males N = 7, females N = 2) performed a standard Wingate Anaerobic cycle test on a cycle ergometer under nose (N) and mouth (M) only respiratory conditions, performed in a counterbalanced order. A 2 (condition: nose, mouth) x 6 (time: 0-5 sec, 5-10 sec, 10-15 sec, 15-20 sec, 20-25 sec, 25-30 sec) repeated measures ANOVA was used to analyze the data with significance accepted at the p\u3c0.05 level. No differences between breathing mode were observed for any power output or performance measures associated with the Wingate Anaerobic cycle test. Respiratory exchange ratio (RER) was significantly higher in the oral respiration condition from 10 seconds to 25 seconds during the test (p\u3c0.05). On the other hand, heart rate (HR) in the nasal condition was significantly greater during the final two time intervals (p\u3c0.05). Nasal breathing was effective in reducing hyperventilation as RER remained below 1.0. However, elevated HR with nasal breathing indicates increased cardiovascular stress associated with this mode. As breathing mode does not affect power output or performance measures during completion of a high-intensity anaerobic test, preference of the participant should be the determining factor if a choice is available
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