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PERFORMANCE OF SMALL SCALE LIVESTOCK/CROP DEMONSTRATION-CUM-TRAINING FARMS IN SRI LANKA
de Jong, R.,Kuruppu, L.G.,Jayawardena, Q.W.,Ibrahim, M.N.M. Asian Australasian Association of Animal Productio 1994 Animal Bioscience Vol.7 No.4
Three livestock/crop demonstration-cum-training farms have been established on plots of half, one and two acres, typical of the "Kandyan Forest Garden System" Vegetables, bananas, pepper, coffee, coconut and fruit trees are widely spaced, for intercropping with grass, and have been surrounded with live fences that also provide fodder for livestock to increase the family income. Each unit is operated by a selected employee and his family under a monthly incentive scheme based upon the gross margin. On these farms the technical parameters in dairying are better than elsewhere in the Mid-Country. Economic performance over 1985-1992 showed that dairying contributed most to the total gross margin of the half, one and two acre units, i.e. 31, 63 and 69%, respectively. Next came crops (29%, 37% and 19%), poultry (22%, 0% and 9%), and goats (18%, 0% and 3%). In the three farms the cash income per Sri Lankan Rupee spent was 1.5, 4.6 and 2.1, respectively. The overall ratio was 3.2 for dairying, 1.1 for poultry, 4.5 for goats and 9.9 for crops. Actual family labour in the three farms was 548, 548 and 639 days, compared to the 270, 330 and 440 days anticipated in the initial feasibility study. The average incentive payments, which were 20% (half acre), 61% (one acre) and 133% (two acres) of the parastatal salary of the employee, were only insufficient for the extra labour applied in the half acre unit. Dairying and goats proved to be attractive cash earners with a domestic fuel were important benefits. Poultry did little to improve farm income.
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Male Attitudes towards Infertility: Results from a Global Questionnaire
De Jonge Christopher J.,Gellatly Steven A.,Vazquez-Levin Mónica H.,Barratt Christopher L.R.,Rautakallio-Hokkanen Satu 대한남성과학회 2023 The World Journal of Men's Health Vol.41 No.1
Purpose: In general, men are less likely to seek health care than women. Infertility is a global disease that afflicts approxi-mately 15% of reproductive age couples and the male contributes to 40% of the diagnosable cause. Remarkably, no large or multi-national population data exist regarding men’s perceptions about their infertility. The purpose of this study was to advance our knowledge about the infertile male’s social experience regarding: (1) how they feel about their infertility, (2) what motivated them to seek health care, (3) how likely are they to talk with others about their infertility, (4) their awareness of male infertility support groups, and (5) what their primary source for information is regarding male infertility? Based on the results from this study, these simple questions now have clearer definition. Materials and Methods: An Institutional Review Board-approved, male-directed, anonymous questionnaire translated into 20 languages was made globally available through the Fertility Europe website (https://fertilityeurope.eu). Males (n=1,171) age 20–49 years were invited to complete the online survey after informed consent. Results: Most respondents were European (86%). Of European men, <15.8% were self-motivated to seek medical help. Fur-ther, their physician was not the primary source of information regarding their infertility. While most men (59%) viewed their infertility positively, a large majority were not very likely (73%) to talk about it. Most respondents indicated a lack of aware-ness or absence of male infertility support groups. Conclusions: These are the first multi-national population data revealing men’s feelings about their infertility, what motivates them to seek help and their awareness of resources for peer support and information. These findings also serve to highlight significant gaps that exist in the provision of male reproductive health care and in supportive resources for men suffering from infertility. We offer recommendations on how to address the problem(s).
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De Jong, Wim H.,Hoffmann, Sebastian,Lee, Michelle,Kandá,rová,, Helena,Pellevoisin, Christian,Haishima, Yuji,Rollins, Beau,Zdawczyk, Austin,Willoughby, Jamin,Bachelor, Michael,Schatz, Timot Elsevier 2018 Toxicology in vitro Vol.50 No.-
<P><B>Highlights</B></P> <P> <UL> <LI> Alternative in vitro testing of medical device extracts for irritation is possible. </LI> <LI> Reconstructed human epidermis (RhE) model detects presence of irritant in extracts. </LI> <LI> High predictivity RhE model for presence of strong irritants in material extracts. </LI> <LI> Predictivity in saline or sesame oil extract depends on hydrophilicity of irritant. </LI> <LI> Four positive polymer test materials containing a known irritant were evaluated. </LI> </UL> </P>
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이덕(De Li),김종원(Jong-Weon Kim),최종욱(Jong-Uk Choi) 한국컴퓨터정보학회 2005 韓國컴퓨터情報學會論文誌 Vol.10 No.3
기존의 디지털 워터마킹 기술은 대부분 삽입과 검출에서 동일한 키를 사용하는 대칭키 방식이다. 이러한 대칭키 워터마킹 방식은 검출을 쉽게 할 수 있는 반면에 공격자에 의하여 검출기의 비밀 키 정보가 유출될 경우 삽입 정보가 제거되거나 변조되는 치명적인 공격을 받을 수 있다. 따라서 최근에는 삽입기에서 삽입한 비밀 정보를 검출기에서 공개 키를 이용하여 검출하는 비대칭 워터마킹(Asymmetric watermarking)방식이 차세대 워터마킹 기술로 주목을 받고 있다.<br/> 본 논문에서는 선형 연립방정식의 해집합을 이용하여 개인 키의 탐색 공간을 효과적으로 확장하였다. 또한 공개 키로부터 개인 키를 유출할 수 없도록 하기 위하여 공개 키의 생성은 안전한 선형변환 방식에 기초하였으며 높은 상관도 검출이 가능하도록 구성되었다. 실험결과 워터마크가 삽입된 영상에서 1비트의 정보 뿐만 아니라, 멀티 비트의 정보에 대한 공개 키 상관도 검출이 정확히 이루어짐을 확인할 수 있었으며 JPEG압축 후에도 높은 상관도 검출이 가능한 것으로 나타났다. Traditional watermarking technologies are symmetric method which embedding and detection keys are same. Although the symmetric watermarking method is easy to detect the watermark, this method has weakness against to malicious attacks to remove or modify the watermark information when the symmetric key is disclosure. Recently, the asymmetric watermarking method that has different keys to embed and detect is watched several researchers as a next generation watermarking technology. <br/> In this paper, we have expanded search space of secret key using the solution set of linear simultaneous equations. Secret key is generated by secure linear transformation method to prevent of guessing secret key from public key, and the correlation value between secret key and public key is high. At theresults, the multi bits information can be embedded and high correlation value was detected after JPEG compression.
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Koen de Jong 한국지질과학협의회 2009 Geosciences Journal Vol.13 No.3
40Ar/39Ar age spectra with progressively increasing step ages are well known for metamorphic hornblende and have been classically interpreted by partial loss of radiogenic argon by diffusion processes during younger thermo-tectonic reworking. Application of a number of numerical modelling tools based on diffusion theory and that assume thermally activated loss of radiogenic 40Ar by solid-state volume diffusion suggests that staircaseshaped age spectra of Neoarchaean tschermakitic hornblende from the Lapland-Kola Orogen are due to argon losses of 40–50% during reheating to 450 ± 25 oC in Palaeoproterozoic time. However, in hornblende samples that yielded staircase-type age spectra, biotite occurs in the matrix, as well as intimately and abundantly intergrown with the amphibole along grain boundaries, cleavages, fractures and other defects. Drilling of 1.5 mm diameter discs from carefully selected hornblende grains in petrographic thin sections permitted to minimise the effects of contaminant biotite inclusions and/or compositional zoning of the amphibole. 40Ar/39Ar laser probe step-heating of drilled biotite-free hornblende discs yielded flat age spectra, suggesting absence of thermally activated radiogenic 40Ar loss. This would imply unrealistically contrasting temperature histories for neighbouring grains. Apparent-loss age spectra, thus, result from differential gas release of hornblende and an included, earlier degassing minor contamination of much younger biotite, which had apparently not been completely eliminated from the amphibole separate, despite careful handpicking. This is confirmed by the Ca/K ratio spectra − a proxy for 37ArCa/39ArK − of hornblende that are flat for drilled biotite-free hornblende grains, but initially low for hornblende separates. A drilled disc and a separate of hornblende from a biotite-free amphibolite did not yield apparent loss spectra, but flat age and Ca/K ratio spectra, confirming the interpretation of the role of biotite. 40Ar/39Ar age spectra with progressively increasing step ages are well known for metamorphic hornblende and have been classically interpreted by partial loss of radiogenic argon by diffusion processes during younger thermo-tectonic reworking. Application of a number of numerical modelling tools based on diffusion theory and that assume thermally activated loss of radiogenic 40Ar by solid-state volume diffusion suggests that staircaseshaped age spectra of Neoarchaean tschermakitic hornblende from the Lapland-Kola Orogen are due to argon losses of 40–50% during reheating to 450 ± 25 oC in Palaeoproterozoic time. However, in hornblende samples that yielded staircase-type age spectra, biotite occurs in the matrix, as well as intimately and abundantly intergrown with the amphibole along grain boundaries, cleavages, fractures and other defects. Drilling of 1.5 mm diameter discs from carefully selected hornblende grains in petrographic thin sections permitted to minimise the effects of contaminant biotite inclusions and/or compositional zoning of the amphibole. 40Ar/39Ar laser probe step-heating of drilled biotite-free hornblende discs yielded flat age spectra, suggesting absence of thermally activated radiogenic 40Ar loss. This would imply unrealistically contrasting temperature histories for neighbouring grains. Apparent-loss age spectra, thus, result from differential gas release of hornblende and an included, earlier degassing minor contamination of much younger biotite, which had apparently not been completely eliminated from the amphibole separate, despite careful handpicking. This is confirmed by the Ca/K ratio spectra − a proxy for 37ArCa/39ArK − of hornblende that are flat for drilled biotite-free hornblende grains, but initially low for hornblende separates. A drilled disc and a separate of hornblende from a biotite-free amphibolite did not yield apparent loss spectra, but flat age and Ca/K ratio spectra, confirming the interpretation of the role of biotite.
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