A solution to the surface intersection problem

An application-independent geometric model within a data base framework should support the use of Boolean operators which allow the user to construct a complex model by appropriately combining a series of simple models. The use of these operators leads to the concept of implicitly and explicitly defined surfaces. With an explicitly defined model, the surface area may be computed by simply summing the surface areas of the bounding surfaces. For an implicitly defined model, the surface area computation must deal with active and inactive regions. Because the surface intersection problem involves four unknowns and its solution is a space curve, the parametric coordinates of each surface must be determined as a function of the arc length. Various subproblems involved in the general intersection problem are discussed, and the mathematical basis for their solution is presented along with a program written in FORTRAN IV for implementation on the IBM 370 TSO system

Analisis Kematangan Sosial Pengguna Fasebook Kelas X Siswa SMA Negeri 4 Pujud

This study aims to describe the level of sosial manurity fasebook asers class x students of SMAN 4 Pujud, the background due to a phenomenon seen in schools, namely: Research issues How social manurity picture fasebook users class x students of SMAN 4 Pujud. The method used in this research is descriptive method. Loction of the study are in SMAN 4 Pujud. Subjects in this studys were students of class x in SMAN 4 Pujud taken with saturated sample technique. Data and data collection tool was a questionnaire in the from of social manurity in students' fasebook asers SMAN 4 Pujud made by the researchers themselves based on the lattice with alternative answers often, sometimeand never. Data analysis technique using benchmark categories based formula Supranto ( 2008: 2) and the percentage formula (Anas Sudijono, 2004: 170). Conclusion the results of this study based on the results of the calculation of benchmarks fasebook user questionnaire social maturityin 4 PujudState high school students in middle category in accordance with the results of the analysis. As a follow up of this study can researchers rekomendasikan that stakeholders especially parents and teachers to determinethe level of social maturityfor students of fasebook users, as well as the impeacts that may affect students' learning achievement and relationships both at school and in thecommunity. Next to the researcher is expected to conduct farther research in view of the present study only refers to thoseaspects that still need further improvemen

Comparison of Three Dispenser Distribution Patterns for Pheromone Mating Disruption of Paralobesia viteana (Lepidoptera: Tortricidae) in Vineyards

Over two growing seasons, Isomate GBM-Plus tube-type dispensers releasing the major pheromone component of grape berry moth, Paralobesia viteana (Clemens) (Lepidoptera: Tortricidae), were evaluated in vineyards (Vitis spp.) in Michigan, New York, and Pennsylvania. Dispensers were deployed in three different density-arrangement treatments: 124 dispensers per ha, 494 dispensers per ha, and a combined treatment with 124 dispensers per ha in the vineyard interior and 988 dispensers per ha at the vineyard border, equivalent to an overall density of 494 dispensers per ha. Moth captures and cluster infestation levels were compared at the perimeter and interior of vineyards receiving these different pheromone treatments and in vineyards receiving no pheromone. Orientation of male moths to pheromone-baited traps positioned at the perimeter and interior of vineyards was reduced as a result of mating disruption treatments compared with the nontreated control. These findings were consistent over both years of the study. Disruption of male moth captures in traps varied from 93 to 100% in treated vineyards, with the 494 dispensers per ha application rates providing significantly higher level of disruption than the 124 dispensers per ha rate, but only in 2007. Measurements of percentage of cluster infestation indicated much higher infestation at perimeters than in the interior of the vineyards in all three regions, but in both sample positions there was no significant effect of dispenser density on cluster infestation levels in either year. The contrasting results of high disruption of moth orientation to traps in vineyards that also had low levels of crop protection from this pheromone treatment are discussed in the context of strategies to improve mating disruption of this tortricid pes

Evaluation of Electroencephalography Findings in Isolated Hypocalcemia Patients

Aim:In our study, we aimed to analyze electroencephalography (EEG) findings in patients with hypocalcemia and to investigate possible relationship between calcium (Ca) level and EEG abnormalities and whether there was any change in EEG findings when serum Ca level returns to normal.Methods:Seventeen consecutive patients, who were admitted to the Endocrinology, Neurology and General Surgery Clinics at İstanbul Şişli Hamidiye Etfal Training and Research Hospital with a corrected serum Ca level of 8.5 mg/dL) in follow-up.Results:EEG abnormalities were detected in nine (53%) of 17 patients. EEG examination revealed slow background activity in seven patients (41%) and epileptiform abnormalities in two (12%) patients. In follow-up, normocalcemic period was observed in seven patients. EEG findings were improved in two of eight patients who had slow background activity and one of two patients with epileptiform activity in the normocalcemic period.Conclusion:Our study showed that various EEG findings, such as slowed background activity and epileptiform abnormalities, may be seen in isolated hypocalcemia patients even in the absence of clinical findings and these EEG findings may improve in normocalsemic period

UTILIZATION OF LONG ACTING AND PERMANENT FAMILY PLANNING METHODS AMONG WOMENS VISITING FAMILY PLANNING CLINIC IN ARBA MINCH HOSPITAL.

Background: maternal health improvement is dependent on availability and utilizations of reproductive health services including family planning. Family planning is assumed to prevent 187 million unintended pregnancies and nearly 60 million unplanned births. This study aimed to assess the utilization of long acting family planning methods in Arba Minch Hospital. Methods: Health facility based cross-sectional was conducted in Arba Minch Town. The study included women of reproductive age who were visiting Arba Minch General hospital. Data was collected by interviewer administered questionnaire and analyzed by SPSS software version 20. Results: One hundred forty four (88.88%) of the respondents took FP methods during the study. From these women most 88(61.15%) of them took Depo-Provera. In this study utilization of long acting family planning methods was 22.9%.   The commonly used long acting methods were IUCD 5.55% and Implanon 17.3%. Conclusion and Recommendations: utilization of long acting family planning methods in the study area was low. Increasing the awareness and resolving the perception of clients on wrong assumption need to be corrected through health education. Key words: long acting methods, utilizations, reproductive health, Arba Minch, Ethiopia

Student nurse selection and predictability of academic success : the Multiple Mini Interview project

BACKGROUND: With recent reports of public enquiries into failure to care, universities are under pressure to ensure that candidates selected for undergraduate nursing programmes demonstrate academic potential as well as characteristics and values such as compassion, empathy and integrity. The Multiple Mini Interview (MMI) was used in one university as a way of ensuring that candidates had the appropriate numeracy and literacy skills as well as a range of communication, empathy, decision-making and problem-solving skills as well as ethical insights and integrity, initiative and team-work. OBJECTIVES: To ascertain whether there is evidence of bias in MMIs (gender, age, nationality and location of secondary education) and to determine the extent to which the MMI is predictive of academic success in nursing. DESIGN: A longitudinal retrospective analysis of student demographics, MMI data and the assessment marks for years 1, 2 and 3. SETTINGS: One university in southwest London. PARTICIPANTS: One cohort of students who commenced their programme in September 2011, including students in all four fields of nursing (adult, child, mental health and learning disability). METHODS: Inferential statistics and a Bayesian Multilevel Model. RESULTS: MMI in conjunction with MMI numeracy test and MMI literacy test shows little or no bias in terms of ages, gender, nationality or location of secondary school education. Although MMI in conjunction with numeracy and literacy testing is predictive of academic success, it is only weakly predictive. CONCLUSIONS: The MMI used in conjunction with literacy and numeracy testing appears to be a successful technique for selecting candidates for nursing. However, other selection methods such as psychological profiling or testing of emotional intelligence may add to the extent to which selection methods are predictive of academic success on nursing

Kinematical Signatures of Disc Instabilities and Secular Evolution in the MUSE TIMER Survey

The MUSE TIMER Survey has obtained high signal and high spatial resolution integral-field spectroscopy data of the inner $\sim6\times6$ kpc of 21 nearby massive disc galaxies. This allows studies of the stellar kinematics of the central regions of massive disc galaxies that are unprecedented in spatial resolution. We confirm previous predictions from numerical and hydrodynamical simulations of the effects of bars and inner bars on stellar and gaseous kinematics, and also identify box/peanuts via kinematical signatures in mildly and moderately inclined galaxies, including a box/peanut in a face-on inner bar. In 20/21 galaxies we find inner discs and show that their properties are fully consistent with the bar-driven secular evolution picture for their formation. In addition, we show that these inner discs have, in the region where they dominate, larger rotational support than the main galaxy disc, and discuss how their stellar population properties can be used to estimate when in cosmic history the main bar formed. Our results are compared with photometric studies in the context of the nature of galaxy bulges and we show that inner discs are identified in image decompositions as photometric bulges with exponential profiles (i.e., S\'ersic indices near unity).Comment: 4 pages, 5 figures, to appear in Galactic Dynamics in the Era of Large Surveys, M. Valluri & J. A. Sellwood (eds.

Slowing deforestation in Indonesia follows declining oil palm expansion and lower oil prices

Much concern about tropical deforestation focuses on oil palm plantations, but their impacts remain poorly quantified. Using nation-wide interpretation of satellite imagery, and sample-based error calibration, we estimated the impact of large-scale (industrial) and smallholder oil palm plantations on natural old-growth ("primary") forests from 2001 to 2019 in Indonesia, the world's largest palm oil producer. Over nineteen years, the area mapped under oil palm doubled, reaching 16.24 Mha in 2019 (64% industrial; 36% smallholder), more than the official estimates of 14.72 Mha. The forest area declined by 11% (9.79 Mha), including 32% (3.09 Mha) ultimately converted into oil palm, and 29% (2.85 Mha) cleared and converted in the same year. Industrial plantations replaced more forest than detected smallholder plantings (2.13 Mha vs 0.72 Mha). New plantations peaked in 2009 and 2012 and declined thereafter. Expansion of industrial plantations and forest loss were correlated with palm oil prices. A price decline of 1% was associated with a 1.08% decrease in new industrial plantations and with a 0.68% decrease of forest loss. Deforestation fell below pre-2004 levels in 2017-2019 providing an opportunity to focus on sustainable management. As the price of palm oil has doubled since the start of the COVID-19 pandemic, effective regulation is key to minimising future forest conversion

Consistency of the black hole mass determination in AGN from the reverberation and the X-ray excess variance method

Values of black hole masses are frequently determined with the help of the reverberation method. This method requires a specific geometrical factor related to the distribution of the orbits of the Broad Line Region clouds. Onken et al. determined the value f^2= 1.37+/-0.45 from the black hole mass - dispersion relation. In this paper we determine this factor using an independent mass determination from the X-ray variance method for a number of Seyfert 1 galaxies and comparing them with the reverberation results by Peterson et al. We obtain mean value f^2 = 1.12 +/- 0.54, consistent with Onken et al. Both values are larger than the value 0.75 corresponding to a spherical geometry. It indicates that most probably all values of the black hole masses obtained with the use of the Kaspi et al. formulae should be multiplied by a factor of \sim 1.7. This also shows that the Broad Line Region is rather flat, and hints for a dependence of the factor f^2 on a source inclination seem to be present in the data.Comment: 7 pages, 4 figures, 1 table; accepted for publication in MNRA

QUALITY OF LIFE AND WELL-BEING AMONG PALESTINIANAND SYRIAN REFUGEES IN LEBANON

Quality of life (QOL) is a basic concept in a number of disciplines, including social sciences, politics, economics, the environment, psychology, and medicine. Although the term comprises primarily psychological components, it remains a multi-dimensional concept that has been derived from various fields, the most important of which are biology, medicine, psychology, and sociology. Well-being generally includes global judgments of life satisfaction and feelings ranging from depression to joy. The study sought to (1) investigate the sex-related differences on both quality of life (QOL) and well-being. A convenience sample of 382 adults from the Palestinian and Syrian refugees were recruited. The study used the Arabic version of the World Health Organization Quality of Life-Brief (WHOQOL-Brief) scale. Derived from the original 100-item WHOQOL-100 scale, it is a 26-item questionnaire that covers four domains related to QOL: physical health, psychological health, social relationships and the environment. The well-being self-report scale is applied on the research sample. The results of the study are discussed in the light of the previous studies and the theoretical frame work relevant to Quality of life and well-being Based upon the findings of the present study, it was recommended to develop a guidance program aimed to raise the adults awareness of the importance of quality of life and its impact on the well-being