101 research outputs found
Industrial training report: Perpustakaan Tun Abdul Razak (PTAR) UiTM Cawangan Perak, Seri Iskandar / Ruhi Imani Mokhtar
No full textThis report is contained information about the industrial training of Ruhi Imani Binti Mokhtar in Perpustakaan Tun Abdul Razak (PTAR) library, UiTM Perak Campus Seri Iskandar starts from 01 August until 31 December 2017. A detailed information about the organization background and PTAR library UiTM Perak is stated by the author. All the activities that happened during the industrial training is also been explained according to the department of the library. A special project for this industrial industry is also been explained by the author in detail. This report also did explain about the reflection that has been got by the author during of his internship. Appendices that related to the industrial training is also included
Siyasi baskılar döneminde sanata adanmış bir hayat hikayesi: Mehmet Ruhi Su ve 1940-1985 dönemi siyasetinin sanata karşı baskılayıcı tutumu
No full textAnkara : İhsan Doğramacı Bilkent Üniversitesi İktisadi, İdari ve Sosyal Bilimler Fakültesi, Tarih Bölümü, 2018.This work is a student project of the Department of History, Faculty of Economics, Administrative and Social Sciences, İhsan Doğramacı Bilkent University.The History of Turkey course (HIST200) is a requirement for all Bilkent undergraduates. It is designed to encourage students to work in groups on projects concerning any topic of their choice that relates to the history of Turkey. It is designed as an interactive course with an emphasis on research and the objective of investigating events, chronologically short historical periods, as well as historic representations. Students from all departments prepare and present final projects for examination by a committee, with 10 projects chosen to receive awards.Includes bibliographical references (pages 22-24).Bu araştırma projesinin konusu 1945-1980 yılları arasında sanat siyaset ilişkisinin Ruhi Su ile birlikte incelenmesi üzerinedir. Ruhi Su öksüz bir halk sanatçısıdır. çocuk yaşlarından itibaren müzik adına çok önemli çalışmalar yapıp imkansızlıklara ve zorluklara rağmen devlet opera sanatçılığına kadar yükselmiştir. Fakat sonra siyasi görüşleri nedeniyle mesleği elinden alınmış olup siyasi otoriteler tarafından ölümüne kadar zorlu bir hayata mahkûm edilmiştir. Bu makalede Ruhi Su’nun oğlu Ilgın Su, öğrencileri Refik Köksal, Karabey Aydoğan ve Ruhi Su’yu araştırmak adına önemli çalışmalar yapıp Alâettin Bahçekapılı ile birlikte 2016 yılında “Ruhi Su, ‘Sen Gittin Gideli’” kitabını yayımlayan Nabi Belekoğlu ile yapılan röportajlardan yararlanılmıştır. İkincil literatür olarak “Ruhi Su, ‘Sen Gittin Gideli’” kitabı projemiz adına önem teşkil etmektedir. Röportaj yapılan kişiler incelediğimiz dönemin büyük bir kısmına şahit olmuşlardır, bu nedenle bizlerle paylaştıkları anılar ve bizlere verdikleri bilgiler projenin yazımında oldukça etkilidir.The subject of this research project is the study of the relationship between arts and politics and Ruhi Su in between 1945-1980. Ruhi Su is an orphan folk artist. Since his childhood, he has made important studies on music and he has advanced in music career as an opera singer despite the impossibilities and difficulties. However, he was taken away from his profession and forced to a challenging life by political authorities until his death because of his political views. In this article, the interviews conducted with Ilgın Su, the son of the Ruhi Su, Refik Köksal, Karabey Aydoğan, who were students of Ruhi Su, and Nabi Belekoğlu who dedicated himself to study and research Ruhi Su and author of the book “Ruhi Su, ‘Sen Gittin Gideli’” together with Alâettin Bahçekapılı. As the secondary literature the book “Ruhi Su, ‘Sen Gittin Gideli’” has an importance on our research. The interviewees witnessed a large part of the period we were studying, so the information they shared with us and the information they gave us are very influential in writing the project.by Fatma Özden Mercan
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Effects of Climate Change-Induced Low Flows on Sierra Nevada Stream Ecosystems
No full textClimate change is altering physical environments and biotic communities globally. High-elevation mountain streams are particularly at risk because rising air temperatures can reduce snowpack and extend the duration of summer low flow, consequently altering a variety of abiotic variables. In turn, populations and communities exposed to environmental change can undergo shifts in phenology, fitness, and behavior–altering the ecosystem processes that these biota control. In this dissertation, I examined how climate change-induced low flows are impacting stream water temperature, invertebrate communities, and the mechanistic pathways through which low flow acts on communities. I achieved this with three complementary approaches. First, I tested the effects of earlier low flows on organismal phenology, community composition, and resulting ecosystem processes via a mesocosm experiment that simulated flow regimes expected under end-of-the-century climate projections. Second, I assessed spatiotemporal variation in thermal vulnerability to climate change in a mid-elevation stream network in the Sierra Nevada over an extreme drought year (2020–2021). Lastly, I investigated the abiotic and biotic pathways whereby drought alters invertebrate community composition and structure in a California Sierra Nevada watershed across nested spatio-temporal scales–from microhabitat to watershed, and over two decades. I found that extended low flows will likely have diverse abiotic and biotic ramifications on stream ecosystems, but the mechanisms behind these changes are complex and require deep understanding of the ecosystem context.In the summer of 2019, I experimentally examined how earlier snowmelt will alter the phenology of mountain stream organisms and ecosystem processes via outdoor mesocosm stream channels in the Eastern Sierra Nevada, California. Channels were assigned to three hydrograph treatments that simulated the current flow regime or a 3 to 6 week earlier return to summer baseflow conditions projected under regional climate change scenarios. I measured discharge, water temperature, primary production, benthic macroinvertebrate secondary production and phenology, macroinvertebrate emergence, and predatory behavior of a riparian bird. Water temperature increased under advanced low flow conditions, which may have played a role in biofilm production to respiration ratios declining by 32%. Additionally, the majority of the benthic and emergent invertebrate species explaining community dissimilarity changed in phenology as a consequence of the early low-flow treatment. Emergent flux pulses of the dominant insect group (Chironomidae) also nearly doubled in magnitude, benefitting riparian predators. One such riparian predator, the Brewer’s Blackbird, gained access to feed on benthic macroinvertebrates under the 6 week early low flow treatment that aligned with their nesting period. Changes in both invertebrate community structure (composition) and ecosystem processes were mostly fine-scale, and response diversity at the community level stabilized seasonally aggregated responses. My findings illustrate how climate change in mountain streams at the rain-to-snow transition is poised to alter the dynamics of stream food webs via fine-scale changes in phenology even when community structure and ecosystem processes appear stable over longer time periods.
In 2020-2021, I deployed a nested array of high-frequency sensors and used advances in time-series models to examine spatiotemporal variation in thermal vulnerability. This work took place in Bull Creek, one of the Kings River Experimental Watersheds (KREW). Stream thermal sensitivity to atmospheric warming fluctuated strongly over the year and peaked in spring and summer. I found that spatially, the reach scale (~50 m) best captured variation in summer thermal regimes. Spatial variation in summer water temperature was driven firstly by upstream water temperature, with elevation, discharge, and conductivity as local correlates. Lastly, I combined the estimated summer thermal sensitivity and downscaled projections of summer air temperature to forecast end-of-the-century stream warming. I found that 25.5% of cold-water habitat may be lost under high-emissions scenario RCP 8.5 (or 7.9% under mitigated RCP 4.5). This estimated reduction suggests that up to 27.2% of stream macroinvertebrate biodiversity could be stressed or threatened in what was previously cold‑water habitat. My results support that thermal vulnerability in montane stream networks may be highly variable over space and time. Taking spatiotemporal variation into account is critical to understand how climate change will impact high mountain stream ecosystems through rising temperatures and shifts in precipitation.
Stream low flows can alter communities via multiple environmental and biological mechanisms across time and space, but support is mixed as to which mechanisms are paramount and how spatial and temporal context determines their relative importance. I investigated the mechanisms whereby low flow alters stream invertebrate community composition and structure in high-mountain streams–across space and over time. To this end, I sampled aquatic macroinvertebrates from the same 60 sites in Bull Creek where temperature sensors were deployed in 2020, using a nested sampling design. Additionally, long-term data in four reaches were sampled 11 times from 2002 to 2023. The inspected abiotic mechanisms of drought (temperature, water velocity, and fine sediment) all explained variation in a similar percentage of taxa in the community (36.8% - 47.4%), but effects differed when examined spatially vs. temporally. Total spatial variance explained by abiotic mechanisms for each species had no relationship with its temporal counterpart. Biological mechanisms also differed across space and time; community dissimilarity across space was driven by differences in fine sediment causing species turnover (i.e., sensitive species being replaced by tolerant ones), while temporal dissimilarity was driven by differences in temperature and water velocity causing reordering (i.e., shifts in relative abundance). These results challenge the key assumption of ‘space-for-time’ substitution that underpins abundant research on climate change ecology. I contend that space-for-time substitution approaches may be inappropriate in mountain river studies because of their hierarchical structure, high temporal variability, and mechanisms operating distinctly across space and time.
This dissertation provides evidence that climate change-induced low flows will alter Sierra Nevada stream ecosystems in a variety of ways. High elevation mountain streams will increasingly be affected by climate change, a threat that is not well understood despite extensive research efforts. My findings demonstrate that climate change effects are highly context dependent and examining them at the appropriate spatiotemporal scale is necessary to properly assess their impact. Notably, changing abiotic conditions due to extended low flows may benefit some ecosystem processes and taxa at the upper edge of their elevation range, potentially at the cost of coldwater specialists adapted to harsh high mountain streams. High response diversity of species in this dissertation ensured that ecosystem processes often remained stable even if many individual species responded to changing flow regimes. Advances in ecological models and methodology enable finer assessment of environments and communities than ever before, but my research shows that extensive data collection and knowledge of local natural history are necessary for these methods to be effective. This dissertation expands the field of drought ecology, which is of the utmost importance in a quickly changing world
Contrasting intra-annual patterns of six biotic groups with different dispersal mode and ability in Mediterranean temporary ponds
No full textThe temporal patterns of six biotic groups (amphibians, macroinvertebrates with active and passive dispersal mode, microcrustaceans, vascular plants and phytoplankton) and the
responses of each biotic group to environmental variation (water, pond and landscape variables) were studied in a set of Sardinian temporary ponds
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Integrating habitat restoration and conservation planning for freshwater ecosystem resilience
No full textFreshwater ecosystems support biodiversity, climate resilience, and ecosystem services around the globe, making them a conservation priority. To effectively conserve diverse freshwater ecosystems in an uncertain climate future, we must employ a portfolio of conservation strategies that tackle complementary aspects of freshwater restoration and conservation. This dissertation explores three conservation strategies - area-based conservation, local restoration, and wildlife reintroduction - as approaches to conserving freshwater ecosystems. Chapter one examines how state or national area-based conservation schemes must shift focus to specifically include freshwater ecosystems, providing climate, biodiversity, and societal benefits while also better protecting freshwater systems. Our recommendations for centering freshwater ecosystems are to 1) focus on watershed-scale conservation; and 2) consider five freshwater ecosystem priorities, including connectivity, watershed disturbance, flow alteration, water quality, and biodiversity. Chapter two zooms in to a local restoration project in the Klamath River watershed in northern California, where hydropower development and high river water temperatures threaten juvenile salmonids. We show that human-made off-channel floodplain ponds provide cooler and more stable thermal refuge habitat for salmonids, illustrating the value of small-scale restoration in systems that are highly impacted by human development. Chapter three takes a different perspective on habitat engineering by exploring how reintroducing a native wildlife species, the North American beaver (Castor canadensis), could have both biodiversity and climate resilience (water storage and fire risk) benefits at the landscape scale. Our results show that after centuries of overutilization, considerable capacity for beaver dams remains throughout the California Sierra Nevada region. We also show that beavers have the potential to store significant surface water and create fire resilient landscapes throughout the region, illustrating how restoring a keystone species can benefit both ecosystems and society. Overall, these chapters represent three valuable and intersecting approaches to conserving and restoring resilient and functional freshwater ecosystems
Socio-Technical Determinants of Member Participation in Virtual Communities: An Exploratory Mixed Methods Investigation
No full textTitle: Socio-Technical Determinants of Member Participation in Virtual Communities: An Exploratory Mixed Methods Investigation, Author: Umar Ruhi, Location: MillsThe recent unprecedented growth of virtual communities on the Internet has provided an impetus for researchers and practitioners to investigate factors that facilitate or encumber member participation in these communities. As interactive online spaces, virtual communities have the potential to enable high levels of information sharing, communication and social interactions among their members. Despite the crucial realization that engaging and involving members constitutes a fundamental requirement for successful and thriving virtual communities, research done to date to study the factors affecting member participation behavior is still in its infancy. The goal of this study is to identify and ascertain the sociological and technological factors for enhancing and sustaining member participation in virtual communities. Toward this objective, the study utilizes an exploratory mixed methods research design to collect and analyze qualitative and quantitative data from members of various social, professional and commercial virtual communities. Qualitative data for the empirical investigation was gathered through online focus groups and open-ended questionnaires. Using principles and procedures associated with grounded theory methodology, this study presents an emergent theory characterizing the member engagement process as an underlying phenomenon integrating various socio-technical factors that influence member participation behavior. The subsequent phase of quantitative investigation deliberates the testing of salient theoretical constructs and relational propositions from the emergent theory. Exploratory factor analysis and structural equation modeling techniques were used to estimate a structural model of relationships among socio-technical determinants of member participation in virtual communities. The quantitative results provide a strong substantiation of the qualitative findings through triangulation and elaboration of the constructs and their interrelationships in the emergent theory. The key findings from this study emphasize the role of factors such as information quality, member responsiveness, member trustworthiness, and perceived enjoyment in determining continued and active participation in virtual communities. The findings also illustrate the salience of perceived satisfaction and sense of virtual community in predicting members' participation. Based on these findings, this study offers theoretical implications and suggestions for future research, as well as guiding principles and actionable recommendations for virtual community practitioners.ThesisDoctor of Philosophy (PhD
Stability across levels of biological organization in fresh waters: effects of environmental variation, trophic position, and ecosystem type
No full textIn this project, we will apply recent methods developed to decompose metacommunity stability to time series data on freshwater ecosystems. We will decompose regional stability into its variation and synchrony components at the species, community, and metapopulation levels. Then, we will investigate the relationship between extrinsic drivers (e.g., environmental variation, spatial connectivity) and intrinsic drivers (e.g., alpha diversity) on metacommunity stability and its components. We plan to do contrast lotic and lentic environments, and taxonomic groups differing in trophic position (primary producers, primary consumers, secondary consumers)
Stability across levels of biological organization in fresh waters: effects of environmental variation, trophic position, and ecosystem type
No full textIn this project, we will apply recent methods developed to decompose metacommunity stability to time series data on freshwater ecosystems. We will decompose regional stability into its variation and synchrony components at the species, community, and metapopulation levels. Then, we will investigate the relationship between extrinsic drivers (e.g., environmental variation, spatial connectivity) and intrinsic drivers (e.g., alpha diversity) on metacommunity stability and its components. We plan to do contrast lotic and lentic environments, and taxonomic groups differing in trophic position (primary producers, primary consumers, secondary consumers)
Stability across levels of biological organization in fresh waters: effects of environmental variation, trophic position, and ecosystem type
No full textIn this project, we will apply recent methods developed to decompose metacommunity stability to time series data on freshwater ecosystems. We will decompose regional stability into its variation and synchrony components at the species, community, and metapopulation levels. Then, we will investigate the relationship between extrinsic drivers (e.g., environmental variation, spatial connectivity) and intrinsic drivers (e.g., alpha diversity) on metacommunity stability and its components. We plan to do contrast lotic and lentic environments, and taxonomic groups differing in trophic position (primary producers, primary consumers, secondary consumers)
PERIODICAL EVOLUTION OF DISCOURSE AND THE PROBLEM OF IMPARTIALITY IN HERESIOGRAPHIES: A Socio-Political Review of Ethem Ruhi Fığlalı and his “Çağdaş İslam Mezhepleri Tarihi”
No full textİslam Tarihinde ilk örnekleri hicrî 3. asra kadar uzanan bir mezhebî metin telif geleneği vardır. İslam uleması bazı dönemler çeşitli siyasi talep ve yönlendirmelerle akaid metinleri ve yönlendirici-tarafgir Makâlât-Fırak (İslâm Mezhepleri Tarihi) metinleri kaleme almışlardır. Bazen de bu tarafgir eserleri inançlarının gereği olarak durumdan vazife çıkarmak adına korumacı refleksle kaleme aldıkları anlaşılmaktadır. Kimi zaman da müelliflerin mezhebi hassasiyetlerinin dönemlere göre değişiklik arz edip müelliflerin üslup ve söylem değişikliğinde bulunduklarını görüyoruz. Ana akım Sünni Müslüman Tarihinde Din-Siyaset-Telif ilişkisine umumi bir bakışla konuya girdiğimiz bu çalışmamızda bir modern dönem Mezhepler Tarihi metni olarak değerlendirdiğimiz Ethem Ruhi Fığlalı’nın -ilk baskısını Mayıs 1980’de yapan, son tahlilde ismi Günümüz İslâm Mezhepleri halini almış olan- eserinin farklı politik zaman ve zeminlerde yapılmış üç baskısındaki söylem değişimini anlamlandırmaya çalıştık. Eserin nihâî şeklini aldığı basımla ilk basımı arasında metin ve üslûbu birbirinden farklı -keza farklı hacimlerde- üç metnin özellikle önsöz, sonuç ve ek kısımları değerlendirilerek aynı metin üzerindeki bu söylem değişiminin, eserlerin basımının yapıldığı dönemlerin sosyopolitik ortamlarıyla irtibatlandırılmasına çalışılmıştır. Herhangi bir siyasi talep ve/veya yönlendirme izine rastlayamamakla birlikte müellifin farklı dönemlerdeki bu söylem değişimine inisiyatif alarak gittiği sonucunu çıkarmamız mümkündür.The early references to the tradition of heresiographies in Islamic history dates back to the third century of Hijri calendar when Muslim scholars authored several works on Muslim creed and biased heresiographies (maq?l?t/firaq) oriented by various political demands and directions as well as self-oriented studies with protectionist reflexes in order to defend their religious positions. Apart from these, it is also witnessed that some authors alter their discourses and wordings according to their denominational fractionations. In this study, it is attempted to signify the shifting discourse between three editions of Ethem Ruhi Fığlalı’s renown work “Günümüz İslam Mezhepleri” (while the first publication is in May 1980, all three have different political eras), as a contemporary text in the study of the history of Islamic Sects, in which we will be examining generally the relation between religion, politics and authorship within the mainstream Sunni Muslim history. The aim of this study is to evaluate the alterations of these three different editions -of even different physical volumes-, especially focusing on their prefaces, conclusions, and appendices; and to connect these alterations in the discourse with the socio-political zeitgeist of their print years. It is concluded that with the absence of an apparent external political orientation or demand, the author, by his own initiative, has definitely adapted his discourse along with the times
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