1,239 research outputs found
Database Theory, Yuri, and Me
No full textYuri Gurevich made many varied and deep contributions to logic for computer science. Logic provides also the theoretical foundation of database systems. Hence, it is almost unavoidable that Gurevich made some great contributions to database theory. We discuss some of these contributions, and, along the way, present some personal anecdotes connected to Yuri and the author. We also describe the honorary doctorate awarded to Gurevich by Hasselt University (then called Limburgs Universitair Centrum) in 1998
YURI KOUZNETSOV AND POLAND
No full textThis article analyses a translation of one of Adam Mickiewicz’s Sonnets from the Crimea made by Yuri Kouznetsov, a famous Russian poet. It is not incidental that some Polish toponyms coincide with personal names mentioned in Kouznetsov’s poetry. The author of the article examines the system of symbols that Kouznetsov resorts to in his texts concerning either Polish themes or stories. It is concluded that in one of his philosophical verses Kouznetsov proclaimed Polish and German culture to have messianic value
Yuri Apollonovich Ptashkovsky (1948—2015)
No full textYuri Apollonovich Ptashkovsky (Юрий Аполлонович Пташковский, in Russian) was born on April 4, 1948, in Khmelnytskyi, Ukraine, and spent most of his life there. He studied at the Khmelnytskyi Electromechanical College, specializing as an electrical technician. He later worked as head of the cinema-photo laboratory of the Khmelnytskyi Municipal Palace of Culture and also led the Children’s Photography Club. Despite his technical education, Yuri’s devotion to nature and studies of nature were evident from his early years. From young age, he passionately observed and investigated insects, especially beetles. Yuri started his own private beetle collection at the age of fourteen. He carefully mounted the specimens for his collection and identified them using available entomological literature. By 1978, his collection amounted to about 1,500 species of beetles. ...Yuri came to Israel on October 28, 1998, joining his eldest son, who was already living in Kibbutz Malkiyya. Yuri settled in Qiryat Hayyim, one of the northern suburbs of Haifa, where he remained for the rest of his life. He worked as a geodesist for the Jewish National Fund (KKL) until his retirement in 2013. From his very first steps in the country, Yuri became fascinated by the incredible diversity of the local beetle fauna, and immediately began collecting insects. Many of his field trips were in and around Qiryat Hayyim, in surrounding fields, and in marine dunes, although he also collected in other parts of the country, particularly in the Upper Galilee, Golan Heights, and on Mount Hermon. Working as a geodesist for KKL, he traveled regularly across northern Israel and was able to assemble a valuable collection of beetles and to photograph them in their natural environment. When the number of his photographed species exceeded 1,000, Yuri came up with the idea of making an illustrated atlas of Israeli Coleoptera.In 2009, after eight years of intensive work the atlas—the first of its kind—was published. The first edition was in Russian and Hebrew, with only a few printed copies. The second edition of 50 copies was published in 2013 in English, with Russian and Hebrew names of some beetle taxa. The atlas is illustrated with 1,800 color images of 1,655 beetle species, some of them taken by the author and some borrowed from various sources. Some of the taxa are briefly described, others are only mentioned by name and by distribution; identification guidelines and sketches are provided for some species and genera. The books were published at Yuri’s own expense. Over the last few years, Yuri began to work on a third edition of his atlas, but his untimely death has interrupted this admirable endeavor. Yuri passed away unexpectedly, from a stroke, on February 9, 2015. He is survived by his wife Galina, two sons and a daughter.
Cite as: Friedman, A.-L.-L. & Novikova, A.V. 2016. Yuri Apollonovich Ptashkovsky (1948—2015). Israel Journal of Entomology 46: 137–140.
DOI: 10.5281/zenodo.22110
Letter from Yuri to Mr. Bengston, October 12, 1942
No full textPost-WWII, Pollock maintains various correspondence with folks from the Fresno Assembly Center, as well as other correspondence with the Pentagon.Walter E. Pollock was the head of the service division at the Fresno Assembly Center. He was deeply affected by his time working at the center and was working on a memoir of his experiences there, but unfortunately passed away before it could be completed. The collection contains his research and draft chapters
Letter from Yuri to Mr. Bengston, September 30, 1942
No full textPost-WWII, Pollock maintains various correspondence with folks from the Fresno Assembly Center, as well as other correspondence with the Pentagon.Walter E. Pollock was the head of the service division at the Fresno Assembly Center. He was deeply affected by his time working at the center and was working on a memoir of his experiences there, but unfortunately passed away before it could be completed. The collection contains his research and draft chapters
Yuri Apollonovich Ptashkovsky (1948—2015)
No full textYuri Apollonovich Ptashkovsky (Юрий Аполлонович Пташковский, in Russian) was born on April 4, 1948, in Khmelnytskyi, Ukraine, and spent most of his life there. He studied at the Khmelnytskyi Electromechanical College, specializing as an electrical technician. He later worked as head of the cinema-photo laboratory of the Khmelnytskyi Municipal Palace of Culture and also led the Children’s Photography Club.
Despite his technical education, Yuri’s devotion to nature and studies of nature were evident from his early years. From young age, he passionately observed and investigated insects, especially beetles. Yuri started his own private beetle collection at the age of fourteen. He carefully mounted the specimens for his collection and identified them using available entomological literature. By 1978, his collection amounted to about 1,500 species of beetles. ...
Yuri came to Israel on October 28, 1998, joining his eldest son, who was already living in Kibbutz Malkiyya. Yuri settled in Qiryat Hayyim, one of the northern suburbs of Haifa, where he remained for the rest of his life. He worked as a geodesist for the Jewish National Fund (KKL) until his retirement in 2013. From his very first steps in the country, Yuri became fascinated by the incredible diversity of the local beetle fauna, and immediately began collecting insects. Many of his field trips were in and around Qiryat Hayyim, in surrounding fields, and in marine dunes, although he also collected in other parts of the country, particularly in the Upper Galilee, Golan Heights, and on Mount Hermon. Working as a geodesist for KKL, he traveled regularly across northern Israel and was able to assemble a valuable collection of beetles and to photograph them in their natural environment. When the number of his photographed species exceeded 1,000, Yuri came up with the idea of making an illustrated atlas of Israeli Coleoptera.
In 2009, after eight years of intensive work the atlas—the first of its kind—was published. The first edition was in Russian and Hebrew, with only a few printed copies. The second edition of 50 copies was published in 2013 in English, with Russian and Hebrew names of some beetle taxa. The atlas is illustrated with 1,800 color images of 1,655 beetle species, some of them taken by the author and some borrowed from various sources. Some of the taxa are briefly described, others are only mentioned by name and by distribution; identification guidelines and sketches are provided for some species and genera. The books were published at Yuri’s own expense. Over the last few years, Yuri began to work on a third edition of his atlas, but his untimely death has interrupted this admirable endeavor.
Yuri passed away unexpectedly, from a stroke, on February 9, 2015. He is survived by his wife Galina, two sons and a daughter. ..
A Guiding Vector-Field algorithm for path-following control of nonholonomic mobile robots
No full textIn this paper, we propose an algorithm for path-following control of the nonholonomic mobile robot based on the idea of the guiding vector field (GVF). The desired path may be an arbitrary smooth curve in its implicit form, that is, a level set of a predefined smooth function. Using this function and the robot's kinematic model, we design a GVF, whose integral curves converge to the trajectory. A nonlinear motion controller is then proposed, which steers the robot along such an integral curve, bringing it to the desired path. We establish global convergence conditions for our algorithm and demonstrate its applicability and performance by experiments with wheeled robots.Accepted Author ManuscriptTeam Tamas Keviczk
Effects of Participatory and Physical Life Goals in a Preventive Care Program for Frail Community-Dwelling Older People: A Retrospective Cohort Study
No full textAbstract
Date Presented 3/31/2017
Life goals related to activities and participation had a more positive effect on frail older people’s health and quality of life than did life goals related to physical function and structure. The setting of meaningful goals may help to improve the effectiveness of preventive care programs.
Primary Author and Speaker: Yoshimi Yuri
Additional Authors and Speakers: Shinichi Takabatake, Yoko Tsuji, Yuri Fujii, Toshikatsu Kaneda, Yasuhiro Higashi, Hiroko Hashimoto, Kazuyo Nakaoka, Mari Oka</jats:p
Warsaw archive of Ivan and Yuri Lypa a historical and biographical source
No full textУ статті здійснено докладний аналіз архіву Івана (1865–1923) та Юрія Липи (1900–1944) – представників української медицини, політичного та літературного процесів, що зберігається у публічній бібліотеці міста Варшави. Матеріали умовно поділено на кілька груп, серед яких документальні та епістолярні джерела. Документальні висвітлюють увесь емігрантський період життя І. Липи, певні аспекти функціонування українських еміграційних установ та освітній шлях Ю. Липи. Епістолярні джерела пов’язані із понад 50-ма представниками української медицини, політики та літератури.This article provides a detailed analysis of the archive of Ivan Lypa (1865–1923) and Yuri Lypa (1900–1944),the representatives of Ukrainian medicine, political and literary processes, which are stored in the Public Library of Warsaw.“Ivan and Yuri Lypa’s archive” of the Public Library of Warsaw contains personal documents and letters sendto both as well as Ivan Lypa’s notebook and his published literary works. Apparently, the history of establishing thecollection of Ivan and Yuri Lypa is connected with the work of a famous Ukrainian researcher and bibliographer Lev Bykovsky, who had been working in the Warsaw Library for sixteen years and managing it as its director fortwo years.The author of the paper also denes the basic value of the archive for historical and biographical research.The materials were conventionally divided into several groups, including documentary and epistolary sources. Documental materials cover entire period of Ivan Lypa’s exile life and some aspects of the political and medical,and educational path of Yuri Lypa. Epistolary sources are related to more than 50 representatives of Ukrainianmedicine, politics and literature, who lived in dierent countries of Europe and America, and it is a valuable source for the history of Ukrainian immigrants between the two World Wars. The most informative for Yuri Lypa’sbiography and his relationships with his supporters are letters from Ye. Malanyuk, D. Dontsov and L. Lytvynovych.The topics discussed in the correspondence are an important supplement to the biographies of more than ahundred both famous and less-known gures of the Ukrainian national movement, literature and medicine. Apart from the letters, Ivan Lypa’s archive contains a substantial number of his published works. They are stored in the form of journal prints, rst collected by the author and, later, by Yuri Lypa. The son was assemblingthe works of his father in order to publish them as a complete compilation. However, he failed to accomplish this goal due to the little interest the publishers took in Ivan Lypa’s prose. Nevertheless, the materials remain enough printable to be published today. They are of high historical and literary value as they concern the period of theUkrainian War for Independence (1917–1921), have rarely been used in literary studies, and are absolutelyunknown to the general public
Cost effectiveness of Mohs micrographic surgery for non-melanoma skin cancer: a systematic review protocol
No full textReview question/objective
The overall research question for this systematic review is: what is the cost effectiveness of Mohs micrographic surgery for non-melanoma skin cancer?
More specifically, the objectives are to:
Examine the evidence on the cost effectiveness, cost benefit, cost minimization, and cost utility of Mohs micrographic surgery, compared to other surgical/ablative interventions such as excisional surgery and radiation therapy, as well as non-surgical/chemotherapeutic interventions such as topical 5-fluorouracil and imiquimod immunotherapy, for non-melanoma skin cancer clinical care outcomes;
Determine the cost effectiveness, cost benefit, cost minimization and cost utility of Mohs micrographic surgery from the patient, provider, healthcare system and societal perspectives in order to elucidate the economic and clinical benefits of the procedure at these various levels;
Provide a comprehensive assessment of the relative economic and clinical effectiveness of this procedure for patients with non-melanoma skin cancer in different contexts globally.
Inclusion criteria
Types of participants
This review will consider studies that include participants with an established diagnosis of non-melanoma skin cancer. For the purposes of this review, an established diagnosis of non-melanoma skin cancer will consist of either squamous cell carcinoma or basal cell carcinoma , confirmed histologically or clinically or both, by a healthcare provider trained to do so.
Types of intervention(s)/phenomena of interest
This review will consider studies that evaluate Mohs micrographic surgery as a treatment for non-melanoma skin cancer.
Types of outcomes
This review will consider studies that measured any clinical care outcomes related to non-melanoma skin cancer, including but not limited to mortality, quality of life, quality-adjusted life years , incidence and recurrence of non-melanoma skin cancer lesions, and frequency of adverse events. However, to be considered for inclusion, studies must also provide an economic evaluation of the relative costs of using Mohs micrographic surgery as a therapeutic modality when compared to other known treatment modalities.Peer reviewedThe definitive version is available at http://www.joannabriggslibrary.org/index.php/index
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