3,507 research outputs found
Natural NMSSM Higgs bosons
No full textWe study the phenomenology of Higgs bosons close to 126 GeV within the scale invariant unconstrained Next-to-Minimal Supersymmetric Standard Model (NMSSM), focusing on the regions of parameter space favoured by low fine-tuning considerations, namely stop masses of order 400 GeV to 1 TeV and an effective ? parameter between 100–200 GeV, with large (but perturbative) ? and low View the MathML sourcetan?=2–4. We perform scans over the above parameter space, focusing on the observable Higgs cross sections into ??, WW, ZZ, bb, ?? final states, and study the correlations between these observables. We show that the ?? signal strength may be enhanced up to a factor of about two not only due to the effect of singlet–doublet mixing, which occurs more often when the 126 GeV Higgs boson is the next-to-lightest CP-even one, but also due to light stops (and to a lesser extent light chargino and charged Higgs loops). There may be also smaller enhancements in the Higgs decay channels into WW, ZZ, correlated with the ?? enhancement. However there is no such correlation observed involving the Higgs decay channels into bb, ??. The requirement of having perturbative couplings up to the GUT scale favours the interpretation of the 126 GeV Higgs boson as being the second lightest NMSSM CP-even state, which can decay into pairs of lighter neutralinos, CP-even or CP-odd Higgs bosons, leading to characteristic signatures of the NMSSM. In a non-negligible part of the parameter range the increase in the ?? rate is due to the superposition of rates from nearly degenerate Higgs bosons. Resolving these Higgs bosons would rule out the Standard Model, and provide evidence for the NMSSM
Bitsch J., Dollfuss H., Boucek Z., Schmidt K., Schmid-Egger C., Gayubo S.F., Antropov A. V. & Barbier Y. -Hyménoptères Sphecidae d'Europe occidentale, 2001
No full textHamon Jacques. Bitsch J., Dollfuss H., Boucek Z., Schmidt K., Schmid-Egger C., Gayubo S.F., Antropov A. V. & Barbier Y. -Hyménoptères Sphecidae d'Europe occidentale, 2001. In: Bulletin de la Société entomologique de France, volume 106 (5), décembre 2001. p. 462
Bitsch J., Dollfuss H., Boucek Z., Schmidt K., Schmid-Egger C., Gayubo S.F., Antropov A. V. & Barbier Y. -Hyménoptères Sphecidae d'Europe occidentale, 2001
No full textHamon Jacques. Bitsch J., Dollfuss H., Boucek Z., Schmidt K., Schmid-Egger C., Gayubo S.F., Antropov A. V. & Barbier Y. -Hyménoptères Sphecidae d'Europe occidentale, 2001. In: Bulletin de la Société entomologique de France, volume 106 (5), décembre 2001. p. 462
Bitsch J., Dollfuss H., Boucek Z., Schmidt K., Schmid-Egger C., Gayubo S.F., Antropov A. V. & Barbier Y. -Hyménoptères Sphecidae d'Europe occidentale, 2001 (suite)
No full textHamon Jacques. Bitsch J., Dollfuss H., Boucek Z., Schmidt K., Schmid-Egger C., Gayubo S.F., Antropov A. V. & Barbier Y. -Hyménoptères Sphecidae d'Europe occidentale, 2001 (suite). In: Bulletin de la Société entomologique de France, volume 106 (5), décembre 2001. p. 482
Bitsch J., Dollfuss H., Boucek Z., Schmidt K., Schmid-Egger C., Gayubo S.F., Antropov A. V. & Barbier Y. -Hyménoptères Sphecidae d'Europe occidentale, 2001 (suite)
No full textHamon Jacques. Bitsch J., Dollfuss H., Boucek Z., Schmidt K., Schmid-Egger C., Gayubo S.F., Antropov A. V. & Barbier Y. -Hyménoptères Sphecidae d'Europe occidentale, 2001 (suite). In: Bulletin de la Société entomologique de France, volume 106 (5), décembre 2001. p. 482
Systolic Implementations of Up/Down-dating Cholesky Factorization Using Vectorized Gram-Schmidt Pseudo Orthogonalization
No full textWe propose a new class of hyperbolic Gram-Schmidt methods to simultaneously update and downdate the Cholesky factor of a sample covariance matrix efficiently with applications to sliding window recursive least squares (RLS) filtering problems. Several vectorized versions of this Gram-Schmidt approach are introduced, which include conventional column-updating, modified row/column- updating, and square-root-free methods. Comparisons to the existing known methods, such as Householder transformation and Givens rotation, are also given. Upon further reformulating these algorithms, a systolic triarray structure is proposed to facilitate VLSI implementations
Sketches for the biography of S.F. Rusova (1856–1940)
No full textМета статті – проаналізувати відомі факти біографії С.Ф. Русової, аби визначити, як вона,
попутниця діячів українського ліберально-демократичного та російського народницького рухів, визначилася й скерувала свою надзвичайну енергію на українську справу. Методи: історико-систематичний та аналітичний. Наукова новизна: уперше звернено увагу не на просвітницьку та педагогічну діяльність, про яку написано багато статей і книг, а власне на біографію С.Ф. Русової, яка
складається з двох частин: української та емігрантської. Висновки: український період її життя
визначається роздвоєнням політичної думки – між українством і російським визвольним рухом. В
еміграції 65-річна С.Ф. Русова, потрапивши в українське середовище, яке впливало на перебіг та
кристалізацію національного руху, віддано служила українству. За основу статті взято книжку
С.Ф. Русової «Мої спомини» (1937), видану у Львові кооперативним видавництвом «Хортиця», заснованим групою емігрантів із Наддніпрянщини наприкінці 1928 р. У передмові чітко визначена позиція видавництва як до авторки спогадів, так і до їх змісту. Вона близька авторці цієї статті.
Видавці зазначають, що в мемуарах зображені різні постаті: ті, які брали активну участь в українському визвольному процесі, і ті, котрі лише «творили близьке балянсування між українством і
загально-московським визвольним рухом» та відзначалися роздвоєнням політичної думки. С.Ф. Русова, на наш погляд, належала до других. Лише в еміграції в Празі вона стала свідомою українкою.
Цей заключний етап життя Софії Федорівни – тема для іншої студії. Автором же окреслений
життєпис С.Ф. Русової в Україні від дитинства до 1921 р., коли вона змушена була залишити
Батьківщину. Ця стаття – лише скромні начерки, в яких відображено діяльність ліберальної української інтелігенції 1870-х рр. – поч. ХХ ст. у контексті того, що в їхньому середовищі відбувався
процес духовного формування С.Ф. Русової, створювався ідейний багаж і моральні норми та образ
життя розумної, освіченої, суперечливої, гонорової жінки, яка постійно перебувала в процесі доволі напружених, болісних шукань.The purpose of the article – is to analyze the known facts of the biography of S.F. Rusova, in order to
determine how she, a fellow traveler of the Ukrainian liberal-democratic and Russian populist movements,
finally made up her mind and directed her extraordinary energy to the Ukrainian cause. Methods: historical-
systematic and analytical. Scientific novelty: for the first time, attention is drawn not to educational
and pedagogical activities, about which many articles and books have been published, but to the biography
of S.F. Rusova, which consists of two parts: Ukrainian and emigrant. Conclusions: the Ukrainian period of
her life is characterized by a bifurcation of political opinion – between Ukrainianism and the Russian liberation
movement. During her emigration, 65-year-old S.F. Rusova, by the will of fate, found herself in the
Ukrainian environment, which influenced the course and crystallization of the national movement, devotedly
served the Ukrainian nation. The basis of the article is the book «My memories» (1937) by S.F. Rusova,
published in Lviv by the cooperative publishing house «Khortytsia», founded by a group of emigrants from
the Naddniprianshchyna at the end of 1928. The preface clearly defines the position of the publishing house
both towards the author of the memoirs and their content. This position is close to the author of this
article. The publishers note that the memoirs depict different people: those who took an active part in the
Ukrainian liberation process and those who only «created a close balance between Ukrainianness and the
all-Moscow liberation movement» and were marked by a split in political opinion. S.F. Rusova, in our opinion,
belonged to the second ones. She became a conscious Ukrainian only when she emigrated to Prague.
This final stage of Sofia Fedorivnaʼs life is a topic for another studio. The author also outlines the biography
of S.F. Rusova in Ukraine from her childhood until 1921, when she was forced to leave the Motherland.
This article is only a modest sketch, which reflects the activities of the liberal Ukrainian intelligentsia
of the 1870s – the beginning of the 20th c. in the context of the fact that in their environment the process of
spiritual formation of S.F. Rusova took place, ideological baggage and moral norms and a way of life were
created an intelligent, educated, controversial, honorable woman who was constantly in the process of
quite intense, painful searches
Scientific Research Methodology for Library & Information Science Research: With Information System Development Methodology as Example
No full text近年來圖書館學與資訊科學有學科領域融合的現象。因為學科領域融合的結果，學科內涵的包容範圍擴大；過去傳統的圖書館學之研究，比較多關於社會科學層面之研究，因此，社會科學的研究方法，已在圖書館學的研究中，成為成熟化的一套研究方法。但是，自從圖書館自動化與資料庫系統建置也成為圖書館學中重要的一環之後，圖書館學的科學層面之研究益形重要，然而相對的研究方法，在圖書館學的研究中，並不及社會科學的研究方法一般成熟。為了幫助圖書館學中的技術科學領域，尋找更能有效解決問題的方法，以提升作業績效與服務上的讀者滿意度，本文乃研究有關科學研究方法的理論，參酌資訊科學領域的學者對於研究方法的見解，以系統開發的研究為例，彙整可行的一套研究方法，而論述科學技術性的作業與系統開發等相關研究，可以採用科學研究的方法。本文除了討論圖書資訊學科學研究法的基本精神與可能的步驟之外，並分析科學研究法的實質效益，希望能為圖書資訊學中的技術科學研究，指出可行的研究途徑，冀期圖書館學的科學研究方法終能發展至成熟之水準，而裨益日益重要的圖書館學之相關科學研究。The cross boundary research between library science and information science shows a great advancement in recent years. In the past, discourse of most researchers in library science had their focus on social aspects; therefore, the adopted sociology research methodologies have developed to a sophisticated level. In fact, the cross-disciplinary development has brought changes to library science research paradigm. With the broader scope of current library and information sciences, it would be very useful if we could also develop suitable research methodology for scientific researches. It is believed that
suitable research methodology could help solve problems in an effective way so as to ensure good operational performance and user satisfaction. Reviewing some theories
of scientific researches and scholars opinions regarding information science research methodologies, the author had information system development research as an example
and advocated that researches concerning technical services of library science needed to adopt scientific research methodologies. The author also introduced the positive heuristic
research approach and associated aspects that need to be included in the process for scientific researches of information system development and pointed out the possible
benefits of a scientific research approach for such researches. It is hoped that this initial discussion could anticipate the development of a set of sophisticated scientific research
methodology for library science researchers and be beneficial
First record of Spilomena mocsaryi Kohl, 1898 (Hymenoptera) from Malta with a check-list of Maltese Crabronidae
No full textUntil now the Crabronidae fauna of the Maltese Islands comprised 45 species in 5 subfamilies. Recently, one of us (EX) while studying insect visitors on flowers of Capparis orientalis found a new crabronid species from Malta, Spilomena mocsaryi Kohl, 1898. A check-list of the 46 species of Crabronidae so far recorded from the Maltese Islands is provided.peer-reviewe
Interferometric coherent Fourier scatterometry: a method for obtaining high sensitivity in the optical inverse-grating problem
No full textGreen Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. 075707-1 t/m 075707-9ImPhys/Optic
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