Seafood Import Demand in the Caribbean Region

Cointegration analysis and an Error Correction Model are used to estimate aggregate seafood import demand functions for selected Caribbean countries. The results show that seafood import demand is price elastic. Exchange rate has a negative effect on seafood import quantity. Income and tourist arrivals have positive impacts on seafood imports. Seafood import negatively affects domestic fishery production. Tariff and production support policies reduce seafood imports, and enhance domestic production. Both policies increase producer surplus, but a tariff reduces consumer surplus, and a production expansion policy increases consumer surplus. A production expansion subsidy is a more appropriate policy instrument than a tariff for small open economies, like the Caribbean States, to increase domestic production and generate net economic surplus.Seafood, import demand, cointegration, economic surplus, Agricultural and Food Policy, International Relations/Trade, Q17, Q22, C32,

Regenerable biocide delivery unit

A method and apparatus are disclosed for maintaining continuous, long-term microbial control in the water supply for potable, hygiene, and experimental water for space activities, as well as treatment of water supplies on Earth. The water purification is accomplished by introduction of molecular iodine into the water supply to impart a desired iodine residual. The water is passed through an iodinated anion exchange resin bed. The iodine is bound as I-(sub n) at the anion exchange sites and releases I(sub 2) into the water stream flowing through the bed. The concentration of I(sub 2) in the flowing water gradually decreases and, in the prior art, the ion-exchange bed has had to be replaced. In a preferred embodiment, a bed of iodine crystals is provided with connections for flowing water therethrough to produce a concentrated (substantially saturated) aqueous iodine solution which is passed through the iodinated resin bed to recharge the bed with bound iodine. The bed of iodine crystals is connected in parallel with the iodinated resin bed and is activated periodically (e.g., by timer, by measured flow of water, or by iodine residual level) to recharge the bed. Novelty resides in the capability of inexpensively and repeatedly regenerating the ion-exchange bed in situ

A review of miniaturised Non-Destructive Testing technologies for in-situ inspections

Non-destructive testing (NDT) techniques have become attractive trends of product manufacturing, installation and post-maintenance in the aerospace, automotive and manufacturing industry, because of its benefits such as cost saving, easy to use and high efficiency etc. With the industrial products becoming large-scale, high integration and complication, developing the NDT miniaturisation technique for in-situ inspections is highly demanded and becoming an inevitable trend. However, in-situ inspection using NDT have been limited by a number of factors, such as the heavy weight, large size or complex structure etc. This paper aims to systematically identify and analyse the current state-of-the-art of NDT miniaturisation techniques in research and innovation, and discuss the challenge and prospect of miniaturisation of the commonly used NDT techniques

Benchmarking acid and base dopants with respect to enabling the ice V to XIII and ice VI to XV hydrogen-ordering phase transitions

Doping the hydrogen-disordered phases of ice V, VI and XII with hydrochloric acid (HCl) has led to the discovery of their hydrogen-ordered counterparts ices XIII, XV and XIV. Yet, the mechanistic details of the hydrogen-ordering phase transitions are still not fully understood. This includes in particular the role of the acid dopant and the defect dynamics that it creates within the ices. Here we investigate the effects of several acid and base dopants on the hydrogen ordering of ices V and VI with calorimetry and X-ray diffraction. HCl is found to be most effective for both phases which is attributed to a favourable combination of high solubility and strong acid properties which create mobile H3O+ defects that enable the hydrogen-ordering processes. Hydrofluoric acid (HF) is the second most effective dopant highlighting that the acid strengths of HCl and HF are much more similar in ice than they are in liquid water. Surprisingly, hydrobromic acid doping facilitates hydrogen ordering in ice VI whereas only a very small effect is observed for ice V. Conversely, lithium hydroxide (LiOH) doping achieves a performance comparable to HF-doping in ice V but it is ineffective in the case of ice VI. Sodium hydroxide, potassium hydroxide (as previously shown) and perchloric acid doping are ineffective for both phases. These findings highlight the need for future computational studies but also raise the question why LiOH-doping achieves hydrogen-ordering of ice V whereas potassium hydroxide doping is most effective for the 'ordinary' ice Ih.Comment: 18 pages, 7 figures, 1 tabl

Comparative study of the outcome of pediatric femur diaphyseal fractures treated with titanium elastic nails vs. compression plates

Background: A variety of methods have been described for the management of femur diaphyseal fractures in children between ages of 5 to 12 years. Some of the techniques include closed reduction and internal fixation (CRIF) with elastic nails, open reduction and internal fixation (ORIF) with compression plates, external fixators and skeletal traction with spica casting. This study was done to compare the outcome and complications of diaphyseal femur fractures in pediatric age treated with CRIF with Titanium elastic nails vs. ORIF with compression plates.Methods: The study was a prospective, clinical study.  A total of 60 patients were studied. 30 patients were treated with CRIF with titanium nails and 30 patients were treated with ORIF with compression plates. Every patient operated was followed up at 3 weeks, 6 weeks, 3 months, 6 months and 3 monthly thereafter until implant removal.Results: Only 1 wound healing complication was noted in the TENS nail group which was skin irritation at the site of pin insertion. In the compression plating group, 6 patients developed wound complications, including superficial infections, deep infections and keloids. The range of movements at knee joint in the two groups was compared.  Only 1 patient had a significant loss of flexion with ROM of less than 100 degrees in the TENS nail group. In the plating group 4 patients had a significant loss of flexion with ROM of less than 100 degrees. Limb length discrepancies were seen in 3 patients in the TENS nail group whereas the compression plating group showed 1 patient. 2 patients in the TENS group developed an angular deformity due to premature weight bearing.  3 patients in the compression plating group developed deformities at the fracture site. The average time for fracture union in the compression plate group was 10.7 weeks and was 14.7 weeks in the patients treated with TENS nail. Conclusions: No single fixation method can be considered superior in all types and patterns of pediatric diaphyseal femur fractures. Titanium elastic nails can be considered a better implant for treating pediatric femur fractures when compared to compression plates due to the lesser rates of surgical wound complications, better range of movements at knee joint and overall lesser complication rate as was recorded in this study

A Study to Determine the Knowledge and Practice regarding Biomedical Waste Management among Paramedical Workers in Selected Primary Health Center at Manamadurai in Sivagangai District

PROBLEM STATEMENT: A study to determine the knowledge and practice regarding biomedical waste management among paramedical workers in selected primary health center at Manamadurai in Sivagangai District. METHODOLOGY: The quantitative research approach with descriptive design was used in this study.The purpose of the study to asses the knowledge and practice of biomedical waste management among paramedical workers. Semi structured questionaire to asses the knowledge regarding biomedical waste management verbal response / checklist to asses the practice of biomedical waste management. The Inferential descriptive statistics was used. OBJECTIVES: 1. To assess the knowledge regarding biomedical waste management among Paramedical workers in selected PHC. 2. To assess the practice regarding biomedical waste management among paramedical workers in selected primary health center. 3. To find out the relationship between knowledge and practice regarding biomedical waste management. 4. To find out the association between the knowledge of paramedical workers and selected demographic variable like age, sex, religion and occupation status, income and experience, and training. 5. To find out the association between the practice on biomedical waste management of paramedical workers and selected demographic variables like age, sex, religion, and occupation, income and experience and training HYPOTHESIS: ❖ There is a significant relationship between the knowledge and practice of paramedical workers regarding Biomedical waste management. ❖ There is a significant association between the knowledge and selected variable such as age, sex, religion, marital status and occupation income, and training. ❖ There is a significant association between the practice and selected variable such as age, sex, religion, marital status and occupation income, and training. MAJOR FINDINGS OF THE STUDY: Majority of paramedical workers 37(37%) between above 31 years. ♣ Majority of paramedical workers 84 (84%) were females. ♣ Majority of paramedical workers 70(70%) were married. ♣ Majority of paramedical workers 74(74%)were Hindu ♣ Majority of paramedical workers 37(37%) were general nurse and midwives. ♣ Majority of paramedical workers 48(48%) were 1-5 years of experience. ♣ Majority of paramedical workers 47(47%) were 12,001-17,000 income ♣ Majority of paramedical workers 100 (100%) were attended training. ♣ Majority of paramedical workers have 58% moderate level of knowledge. ♣ Majority of paramedical workers 77% were having moderate level of practice. ♣ Overall results showed that association between knowledge and selected demographic variable such as religion, experience, income, training and occupation. ♣ Overall results showed that there is no association between practice and selected demographic variables such as age, sex, marital status, year of experience income and training. ♣ Overall results showed that there is a relationship between knowledge and practice. The computed ‘r’ value is +0.515 the positive correlation was found between knowledge and practice. Hence it was interpreted that paramedical workers who had adequate knowledge follows satisfied level of practice. RECOMMENDATION FOR FURTHER RESEARCH: ♠ On the basis of present study following recommendation are made. • A similar study could be done with large samples. ♠ An experimental study could be conducted with structured teaching program on knowledge and practice ♠ A similar study could be conducted in the hospital ,nursing homes and clinics. ♠ A similar study could be done on longitudinal basis. ♠ A similar study may be conducted to find the incidence of infectious disease related to biomedical waste management. ♠ A similar study could be conducted with Health care providers. CONCLUSION: From the above findings the investigator would like to conclude that majority of paramedical workers have moderate level of knowledge; but none of them having adequate level of practices. It was noticed that the primary health centers were not providing adequate facilities to practice bio-medical waste management. The concerned authorities should also be vigilant and providing the proper facilities such as dust bin in different colors for the disposal of hospital waste material. The medical officer should create awareness among paramedical workers regarding bio medical waste management in primary health center and also motivate them to do practice of biomedical waste management; The success of the various scheme implemented by the Government through the medical department in eradicating certain diseases depend on the basic implementation of bio-medical waste management. In primary health centre and also motivate them to do practice of biomedical waste management

Torulaspora delbrueckii Yeast Strains for Small-scale Chenin blanc and Pinotage Vinifications

Nine Torulaspora delbrueckii yeast strains, a commercial T. delbrueckii strain and a commercial Saccharomyces cerevisiae yeast strain were used in the production of small‑scale Chenin blanc and Pinotage vinifications. The fermentations were carried out at 15°C and 24°C respectively. Four T. delbrueckii yeasts were used as single inoculants, while the remainder were inoculated sequentially. The commercial S. cerevisiae yeast strains were added at zero, 24 and 48 hours after the T. delbrueckii strain. The wines were evaluated chemically and sensorially and the data was analysed statistically. The results for the white wine vinification trial showed that two T. delbrueckii treatments could produce novel wines, either on their own or as a component of co‑inoculated fermentations. These compared well with, and even exceeded, the quality of wine produced by the S. cerevisiae reference treatment regarding chemical composition and overall sensory quality. One T. delbrueckii strain showed its robustness by being re-isolated from the yeast lees at the end of fermentation. The red wine vinifications were less conclusive, and no distinctive T. delbrueckii “fingerprint” was observed in the chemical and sensory data, neither was a pattern observed regarding the different inoculation times

Does aerobic exercise reduce postpartum depressive symptoms? A systematic review and meta-analysis

Background There is currently no specific guidance on the role of exercise in managing postpartum depression in the UK and US, and international guidance is inconsistent. Aim To assess the effectiveness of aerobic exercise on postpartum depressive symptoms. Design and setting Systematic review and meta-analysis. There was no restriction to study site or setting. Method The databases MEDLINE, EMBASE, Cochrane Library, PsycINFO, SportDiscus, Clinical Trials.gov, and the World Health Organization International Clinical Trials Registry Platform were searched. Titles and abstracts, then full-text articles, were screened against inclusion criteria: RCTs measuring depressive symptoms in mothers ≤1 year postpartum; and interventions designed to increase aerobic exercise compared with usual care or other comparators. Included studies were assessed using the Cochrane Collaboration's risk of bias tool. Meta-analysis was conducted. Pre-planned subgroup analyses explored heterogeneity. Results Thirteen RCTs were included, with 1734 eligible participants. Exercise significantly reduced depressive symptoms when all trials were combined (standardised mean difference -0.44; 95% confidence interval = -0.75 to -0.12). Exploration of heterogeneity did not find significant differences in effect size between women with possible depression and in general postpartum populations; exercise only and exercise with co-interventions; and group exercise and exercise counselling. Conclusion This systematic review provides support for the effectiveness of exercise in reducing postpartum depressive symptoms. Group exercise, participant-chosen exercise, and exercise with co-interventions all may be effective interventions. These results should be interpreted with caution because of substantial heterogeneity and risk of bias

Effects of a standard provision versus an autonomy supportive exercise referral programme on physical activity, quality of life and well-being indicators:a cluster randomised controlled trial

Background: The National Institute for Health and Clinical Excellence in the UK has recommended that the effectiveness of ongoing exercise referral schemes to promote physical activity should be examined in research trials. Recent empirical evidence in health care and physical activity promotion contexts provides a foundation for testing the feasibility and impact of a Self Determination Theory-based (SDT) exercise referral consultation. Methods: An exploratory cluster randomised controlled trial comparing standard provision exercise referral with an exercise referral intervention grounded in Self Determination Theory. Individuals (N = 347) referred to an exercise referral scheme were recruited into the trial from 13 centres. Outcomes and processes of change measured at baseline, 3 and 6-months: Minutes of self-reported moderate or vigorous physical activity (PA) per week (primary outcome), health status, positive and negative indicators of emotional well-being, anxiety, depression, quality of life (QOL), vitality, and perceptions of autonomy support from the advisor, need satisfaction (3 and 6 months only), intentions to be active, and motivational regulations for exercise. Blood pressure and weight were assessed at baseline and 6 months.Results: Perceptions of the autonomy support provided by the health and fitness advisor (HFA) did not differ by arm. Between group changes over the 6-months revealed significant differences for reported anxiety only. Within arm contrasts revealed significant improvements in anxiety and most of the Dartmouth CO-OP domains in the SDT arm at 6 months, which were not seen in the standard exercise referral group. A process model depicting hypothesized relationships between advisor autonomy support, need satisfaction and more autonomous motivation, enhanced well being and PA engagement at follow up was supported. Conclusions: Significant gains in physical activity and improvements in quality of life and well-being outcomes emerged in both the standard provision exercise referral and the SDT-based intervention at programme end. At 6-months, observed between arm and within intervention arm differences for indicators of emotional health, and the results of the process model, were in line with SDT. The challenges in optimising recruitment and implementation of SDT-based training in the context of health and leisure services are discussed