7,382 research outputs found

    Bose-Einstein Condensation and Casimir Effect of Trapped Ideal Bose Gas in between two Slabs

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    We study the Bose-Einstein condensation for a 3-d system of ideal Bose gas which is harmonically trapped along two perpendicular directions and is confined in between two slabs along the other perpendicular direction. We calculate the Casimir force between the two slabs for this system of trapped Bose gas. At finite temperatures this force for thermalized photons in between two plates has a classical expression which is independent of \hbar. At finite temperatures the Casimir force for our system depends on \hbar. For the calculation of Casimir force we consider only the Dirichlet boundary condition. We show that below condensation temperature(TcT_c) the Casimir force for this non-interacting system decreases with temperature(TT) and at TTcT\gtrsim T_c, it is independent of temperature. We also discuss the Casimir effect on 3-d highly anisotropic harmonically trapped ideal Bose gas.Comment: 4 page

    PEMBELAJARAN MEMPRODUKSI TEKS EKSPLANASI KOMPLEKS DENGAN MENGGUNAKAN MEDIA CARD PROBLEM PADA PESERTA DIDIK KELAS XI SMA KARTIKA XIX - 1 BANDUNG TAHUN PELAJARAN 2015/2016

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    Teks Eksplanasi merupakan teks yang menjelaskan proses. Proses tersebut dapat terjadi secara alamiah, baik yang berkaitan dengan fenomena (gejala) alam maupun fenomena sosial budaya. Penemuan ( Card Problem ) yait u pengujian kemampuan siswa dengan memberikan perm asalahan . Sehubungan dengan hal tersebut, penulis tertarik untuk melakukan penelitian mengenai pembelajaran Memproduksi Teks Eksplanasi Kompleks dengan Menggunakan Media Card Problem pada Peserta Didik Kelas XI SMA Kartika XIX - 1 Bandung Tahu n Pelajaran 2015/2016 . Rumusan masalah yang penulis ajukan adalah; (1) Mampu - kah penulis merencanakan, menerapkan, dan menilai kegiatan pembelajaran mem - produksi teks eksplanasi kompleks dengan menggunakan media card problem pada peserta didik kelas XI SMA Kartika XIX - 1 Bandung? (2) Mampukah peserta didik kelas XI SMA Kartika XIX - 1 Bandung mengikuti kegiatan pembelajaran memproduksi teks eksplanasi kompleks dengan struktur, kaidah kebahasaan, dan penulisan kalimat? (3) Mampukah peserta didik kelas XI SMA Ka rtika XIX - 1 Bandung mengikuti kegiatan pembelajaran memproduksi teks eksplanasi kompleks dengan struktur, kaidah kebahasaan, dan penulisan kalimat? Tujuan dari penelitian ini, untuk mengetahiu kemampuan penulis, siswa, dan keefektifan media pembelajaran. Hipotesis yang penulis rumusk an yang penulis rumuskan yaitu: (a) Penulis mampu melaksanakan pembelajaran mem - produksi teks eksplanasi kompleks dengan menggunakan media Card Problem pada peserta didik kelas XI SMA Kartika XIX - 1 Bandung . (b) Peserta didik ke las XI SMA Kartika XIX - 1 Bandung mampu mengikuti pem - belajaran memproduksi teks eksplanasi kompleks dengan menggunakan media Card Problem . (c) Media Card Problem efektif digunakan dalam pembelajaran memproduksi teks ekspla - nasi kompleks dengan menggunakan media Card Problem pada peserta didik kelas XI SMA Kartika XIX - 1 Bandung . Metode penelitian yang penulis gunakan adalah metode eksperimen de - ngan teknik penelitian telaah pustaka, observasi, tes, dan teknis analisis. Adapun hasil penelitian sebagai berikut. (1) P enulis mampu merencanakan dan melaksanakan pembelajaran Memproduksi Teks Eksplanasi Kompleks dengan Menggunakan Media Card Problem pada Peserta Didik Kelas XI SMA Kartika XIX - 1 Bandung . Hal ini ter bukti dari hasil nilai perencanaan 3,78 dan pelaksanaan sebesar 3,72. (2) Siswa kelas XI SMA Kartika XIX - 1 Bandung mampu Memproduksi Teks Eksplanasi Kompleks dengan Menggunakan Media Card Problem pada Peserta Didik Kelas XI SMA Kartika XIX - 1 Bandung . Hal ini terbukti dari nilai rata - rata pretes yait u 70,32 dan nilai rata - rata postes yaitu 92,16 . Jadi, ada peningkatan sebesar 21,84 atau setara dengan 81 . 46 %. (3) Media Card Problem tepat digunakan dalam pembelajaran Memproduksi Teks Eksplanasi Kompleks pada Peserta Didik Kelas Xi SMA KartiakXIX - 1 Bandu ng . Hal ini terbukti dari hasil perhitungan statistik dengan hasil t hitung 9,21 > 2,06 yakni pada tingkat ke percayaan 95%, dan d.b sebesar 2 4 . Kata Kunci : Pembelajaran, Memproduksi, Teks, Eksplanasi Kompleks, dengan, Menggunakan, Media, Card Problem

    A Profile of Third-Grade Proficiency in Erie County

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    Produced by the United Way of Buffalo and Erie County, this report details information about why it is important for third graders in Erie County to be proficient in reading and math. Children below grade-level proficiency in third grade are much less likely to graduate from high school.Without mastering early reading and math skills, a child will fall further and further behind their peers. Without a high school degree, our children will face a future in which they are less likely to be able to support themselves through employment, and are more likely to live in poverty

    Damping of zero sound in Luttinger liquids

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    We calculate the damping gamma_q of collective density oscillations (zero sound) in a one-dimensional Fermi gas with dimensionless forward scattering interaction F and quadratic energy dispersion k^2 / 2 m at zero temperature. For wave-vectors | q| /k_F small compared with F we find to leading order gamma_q = v_F^{-1} m^{-2} Y (F) | q |^3, where v_F is the Fermi velocity, k_F is the Fermi wave-vector, and Y (F) is proportional to F^3 for small F. We also show that zero-sound damping leads to a finite maximum proportional to |k - k_F |^{-2 + 2 eta} of the charge peak in the single-particle spectral function, where eta is the anomalous dimension. Our prediction agrees with photoemission data for the blue bronze K_{0.3}MoO_3.Comment: final version as published; with more technical details; we have added a discussion of recent work which appeared after our initial cond-mat posting; 13 pages, 5 figure

    The characteristics of ethical problems experienced by ward nurses in nursing practice, their experiences and responses to these problems, and the associated underlying factors.

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    Journal Article病棟看護師が経験する倫理的問題の特徴と経験や対処の実態及びそれらに関連する要因を検討することを目的に、日本の病棟看護師1,746名に自記式質問紙調査を2007年10-11月に実施し、1,144名から回答(回収率:65.5%)を得た。 その結果、病棟看護師は、倫理をめぐる問題を1ケ月に1-3回経験することが多く、経験した倫理的問題を解決した割合は平均40%と低かった。経験した問題の頻度の上位には、「身体抑制や薬剤による沈静をするか、しないか」、「患者に十分な看護ケアを提供できていない看護師の充足状況」、「看護師と医師(他の専門家)の関係における対立」があったが、多くの問題は未解決であった.性別、施設規模、所属病棟、倫理的問題を検討する機会などが倫理的問題の経験の頻度や解決の割合の関連要因として示され、道徳的感性と倫理的問題の経験の頻度にも相関が認められた。 以上より、倫理的問題の解決能力の向上に向けた倫理教育や組織的な体制を整備する必要性への示唆を得た.The purpose of this study is to clarify the characteristics of ethical problems experienced by ward nurses in nursing practice, their experiences and responses to these problems, and associated underlying factors. ln this study, a self-administered questionnaire survey was issued to l,746 ward nurses in October and November 2007 in Japan. Responses were obtained from l,144 ward nurses(recovery rate: 65.5%). The results show that they often experienced ethical problems one to three times a month. The average resolution rate of the ethical problems reported by them was low at 40%. The most frequent problems they experienced were "Use/nonuse of physical chemical restraints","Staffing patterns that limit patient access to nursing care", and "Conflict in nurse/doctor relationships(or other professional relationships)", but most of the problems were not solved. Variables such as the nurses' sex, size of institutions, wards the nurses worked on, and chances for the nurses to study ethical problems were indicated as the associated underlying factors which affect both experiences of ethical problems and the resolution rate of ethical problems. The ocurrence rate of experiencing problems was correlated with moral sensitivity to the associated underlying factors. This study suggests that itis necessary for nurses to have opportunities to study ethics for nursing in order to develop greater ablity to solve the ethical problems and improve organizational systems in the hospitals.報告journal articl

    Issue in evaluating ethics education for nurses and their competency in matters involving ethical judgment and behavior : based upon quantitative surveying of the actual state of clinical nurse's ethics education and moral sensitivity

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    oai:niconurs.repo.nii.ac.jp:00000010Journal Article本研究は、臨床看護師の倫理教育に関する実情と道徳的感性と関連要因について明らかにし、看護師の倫理的な行動力の向上に向けての倫理教育の方途を提示することを目的とした。1,746名の臨床看護師を対象とした質問紙調査を行い、欠損値のある者を除く722名のデータを分析した結果、67.6%の看護師は看護基礎教育機関で倫理を学んだ経験があり、卒後の倫理研修の受講に関しては、39.8%の看護師が受講の経験があった.これらの倫理教育機会の有無に関わらず、倫理に関する知識の程度に関しては、91.1%の看護師が「全く知識がない」「あまり知識がない」と回答していた。更に、道徳的感性と看護師や病院の特性等との関連を調べた結果、有意差のみられた項目は殆どなく、既存の倫理教育が道徳的感性に影響を与えていないことが明らかとなった。これらの結果を踏まえ、看護職者に対する倫理的判断や行動に関わる能力評価における課題を考察した。The present study was conducted to assess the actual state of clinical nurses' ethics education, the moral sensitivity and related factors of clinical nurses with the goal of making ethics education proposals for improving nurses' ability to take ethical action. Questionaires were distributed to 1746 clinical nurses and 722 responses to the questionnaire, excluding incomplete responses, were analyzed. 67.6% of nurses had experienced ethics education during basic training at nursing school, and 39.8% had participated in professional training in ethics since graduating. Regardless of whether or not they had opportunities for ethics education, 91.1% of nurses responded that they had little or no knowledge in relation to ethics. Further, little evidence was found of difference in response to items investigating the relationship of characteristics of the hospital or nurses and moral sensitivity, and it was found that existing ethics education does not affect moral sensitivity, Based on these findings, issues in evaluating ethics education for nurses and their competency in matters involving ethical judgment and behavior are discussed.報告journal articl

    The floriculture industry in Malta

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    The floriculture industry in Malta is relatively small when compared to that of other European countries. However, despite several constraints, a number of growers deal exclusively with the production of floriculture products for local use. In the early 1970s, a locally based company was much involved in the export of floricultural products to the United Kingdom. This year (2002), four local growers initiated the growing and export of gladioli flowers to Italy.peer-reviewe

    Effects of triacontanol on ascorbate-glutathione cycle in Brassica napus L. exposed to cadmium-induced oxidative stress.

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    The ability of exogenous triacontanol (TRIA), a plant growth regulator, to reduce Cd toxicity was studied in canola (Brassica napus L.) plants. The following biological parameters were examined in canola seedlings to investigate TRIA-induced tolerance to Cd toxicity: seedling growth, chlorophyll damage and antioxidant response. In particular, TRIA application reduced Cd-induced oxidative damage, as shown by reduction of ROS content, lipoxygenase (LOX) activity and lipid peroxidation level. TRIA pretreatment increased non-enzymatic antioxidant contents (ascorbate, AsA, glutathione and GSH), phytochelatin content (PCs) and activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), guaiacol peroxidase (GPX), monodehydroascorbate reductase (MDHAR), dehydro ascorbate reductase (DHAR), and glutathione reductase (GR), so reducing the oxidative stress. These results clearly indicate the protective ability of TRIA to modulate the redox status through the antioxidant pathway AGC and GSH, so reducing Cd-induced oxidative stress
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