1,553 research outputs found
Reversible Deactivation Radical Polymerization: Synthesis and Applications of Functional Polymers/ Nikhil K. Singha, Jimmy Mays.
No full textIn English.This book describes strategies and mechanism of reversible deactivation radical polymerization (RDRP) to synthesize functional polymers. Several approaches such as atom transfer radical polymerization and the combination of click chemistry and RDRP are summarized. Contributors from interdisciplinary fields highlight applications in nanotechnology, self-healing materials, oil and water resistant coatings and controlled drug delivery systems.Klumperman, Bert -- Karunakaran, Raghuraman G. / Dhamodharan, Raghavachari -- Patil, Sachin S. / Sane, Prakash S. / Wadgaonkar, Prakash P. / Palaskar, Dnyaneshwar V. -- Lowe, Andrew B. -- Pramanik, Nabendu B. / Mondal, Prantik / Singha, Nikhil K. / Haloi, Dhruba J. -- Banerjee, Sanjib / Chakrabarty, Arindam / Singha, Nikhil K. / Ameduri, Bruno -- Ghosh Roy, Saswati / De, Priyadarsi -- Frontmatter -- Preface -- List of contributors -- Contents -- 1. Introduction to reversible deactivation radical polymerization / 2. Tailor-made polymer-nanohybrid materials via reversible deactivation radical polymerization (RDRP) / 3. Synthesis of functionally terminated polymers by atom transfer radical polymerization (ATRP) and their applications / 4. Functional (co)polymers via a combination of reversible deactivation radical polymerization techniques and thiol-based "click"/conjugation chemistries / 5. Designing macromolecular architecture via reversible deactivation radical polymerization (RDRP) and Diels-Alder reaction / 6. Recent advances in the reversible deactivation radical (co)polymerization of fluorinated alkenes/acrylates/ methacrylates/styrenes / 7. Polymers prepared via reversibledeactivation radical polymerization (RDRP) for biomedical applications / Abbreviations -- Index1 online resource (XI, 291 pages
The Gendered City
No full textThe design of cities and buildings affects women more than men because they were designed by and built for men. Design continues to favour the ‘universal man’, i.e., a white, able-bodied man of about 40 years. The traditionally male-dominated vision of cities produces and reproduces spaces according to reconceived gender roles. The design of external spaces and facilities such as streets, parks, transport and infrastructure, community, and workplace spaces – traditionally associated with the male sphere – all work in a way that women are unable to use them fully. So, the city is divided spatially and temporally by gender- spaces are not fully usable by 50 per cent of the population that women constitute. Failing to consider a gender perspective in design could deteriorate, increment, and catalyse an already gendered environment. At the same time, the city of the evening and night is violent and frightening for women, who have also been subjected to sexual violence, harassment, and discrimination in such spaces during the day. The fact that globally, women outnumber men has not given them the agency to change matters; the fact that the world has seen many women in positions of power, yet much remains to be done in advancing women’s position in society; and the fact that women are heading design practices, yet women-friendly design remains uncommon. The number of women architects, urban planners, surveyors, and engineers still remains low, so gender mainstreaming of urban design is not commonplace. Are these a problem of those in power who do not yet consider the practical, political, and legacy issues arising from a gendered city? Or is this a long-standing problem of patriarchy and history that cannot be overcome so easily? Or can it be a matter of thinking differently, designing innovatively, and working inclusively? We will look at issues of urban design that affect women more, initiatives, and examples of inclusive urban design that empower women and girls from all over the world, reflecting on the relationships between spatial and social models and the role of design in these processes
ปัจจัยที่มีผลต่อการยอมรับเทคโนโลยี S-Wallet ศูนย์อาหารฟู้ดส์เพลส อาคารสิงห์คอมเพล็กซ์
No full textMASTER OF BUSINESS ADMINISTRAT (M.B.A.)บริหารธุรกิจมหาบัณฑิต (บธ.ม.)This research aimed to study the factors of a technology acceptance model for use of the S-Wallet in Foodplace at Singha Complex. The sample size in this research was four hundred consumers, who either worked or came to use the services at Foodplace at Singha Complex. A questionnaire was used as the tool for data collection. The statistics used for data analysis were frequency, percentage, mean, standard deviation and multiple regression analysis. As result of the research, it was found that the perceived ease of use influenced the perceived usefulness of the S-Wallet in Foodplace at Singha Complex included influential factors included usability, accessibility and convenience. The perceived ease of use also influenced attitudes toward the S-Wallet in Foodplace at Singha Complex with influential factors included the perception of convenience. The perceived usefulness influenced attitudes towards personal user of the S-Wallet in Foodplace at Singha Complex had influential factors, including benefits. These attitudes also influence the actual technology, influencing the S-Wallet in Foodplace at Singha Complex in terms of actual technology influencing the frequency of use per month and the actual technology influencing satisfaction. However, it was found in this research that the influence of the actual technology influencing the average payment per time. This research aimed to empower entrepreneurs to understand how the adoption of technology and behavioral influences regarded the use of S-Wallet, in order to improve business and to develop their own technology.งานวิจัยนี้มีความมุ่งหมายเพื่อศึกษาปัจจัยที่มีผลต่อการยอมรับเทคโนโลยี S-Wallet ศูนย์อาหารฟู้ดส์เพลส อาคารสิงห์คอมเพล็กซ์ โดยกลุ่มตัวอย่างที่ใช้ในงานวิจัยครั้งนี้ คือ ผู้บริโภคที่ทำงานหรือมาใช้บริการศูนย์อาหารฟู้ดส์เพลส อาคารสิงห์คอมเพล็กซ์ จำนวน 400 คน โดยใช้แบบสอบถามเป็นเครื่องมือในการเก็บรวบรวมข้อมูล สถิติที่ใช้ในการวิเคราะห์ข้อมูล ได้แก่ ค่าความถี่ ค่าร้อยละ ค่าเฉลี่ย ส่วนเบี่ยงเบนมาตรฐาน และการวิเคราะห์ความถดถอยพหุคูณ ผลการวิจัยพบว่า การรับรู้ความง่ายของการใช้งานมีผลต่อการรับรู้ประโยชน์ที่ได้รับจากเทคโนโลยี S-Wallet ศูนย์อาหารฟู้ดส์เพลส อาคารสิงห์คอมเพล็กซ์ ด้านการรับรู้ความง่ายมีผลต่อการรับรู้ประโยชน์ที่ได้รับจากเทคโนโลยี ได้แก่ ด้านการใช้งาน ด้านการเข้าถึง และด้านความสะดวก การรับรู้ความง่ายของการใช้งานมีผลต่อความตั้งใจในการใช้เทคโนโลยี S-Wallet ศูนย์อาหารฟู้ดส์เพลส อาคารสิงห์คอมเพล็กซ์ ด้านการรับรู้ความง่ายมีผลต่อความตั้งใจในการใช้เทคโนโลยี ได้แก่ ด้านความสะดวก การรับรู้ประโยชน์ที่ได้รับมีผลต่อความตั้งใจในการใช้เทคโนโลยี S-Wallet ศูนย์อาหารฟู้ดส์เพลส ด้านการรับรู้ประโยชน์มีผลต่อความตั้งใจในการใช้เทคโนโลยี ได้แก่ ด้านประโยชน์จากการใช้งาน ความตั้งใจในการใช้เทคโนโลยี S-Wallet มีผลต่อการใช้งานเทคโนโลยีชำระเงินที่เกิดขึ้นจริง ภายในศูนย์อาหารฟู้ดส์เพลส อาคารสิงห์คอมเพล็กซ์ ด้านจำนวนครั้งในการชำระเงินค่าสินค้าผ่าน S-Wallet โดยเฉลี่ยต่อเดือน และด้านความพึงพอใจการใช้งาน แต่พบว่าในด้านจำนวนเงินที่เติมใน S-Wallet ไม่มีผลต่อการใช้งานเทคโนโลยีชำระเงินที่เกิดขึ้นจริง งานวิจัยนี้มุ่งหวังให้ผู้ประกอบธุรกิจได้ทราบถึงการยอมรับเทคโนโลยีและปัจจัยที่มีผลต่อพฤติกรรมการใช้งาน S-Wallet เพื่อให้ผู้ประกอบธุรกิจได้ปรับปรุงและพัฒนาเทคโนโลยีของตนเองให้ผู้บริโภคยอมรับมากขึ้
Fluorescence sensing systems for gold and silver species
No full textBesides the noble physical appearance of gold and silver, their novel chemical properties attracted the modern technology for various industrial, chemical and biological uses including medical applications. The widespread use of gold and silver, however, can cause potential hazards to our environment. Therefore, suitable detection methods are a prerequisite for the evaluation of their harmful effects as well as for studying their beneficial biological properties. Due to the several advantages over the conventional analytical methods, the fluorescence detection of gold and silver has become an active research area in recent years. In this review, we provide an overview of the reported fluorescent detection systems for gold and silver species, and discuss their sensing properties with promising features. The future scope of developments in this field of research is also mentioned.117158sciescopu
A New Ligand Design Based on London Dispersion Empowers Chiral Bismuth-Rhodium Paddlewheel Catalysts
No full textHeterobimetallic bismuth-rhodium paddlewheel complexes with phenylglycine ligands carrying TIPS-groups at the meta-positions of the aromatic ring exhibit outstanding levels of selectivity in reactions of donor/acceptor and donor/donor carbenes; at the same time, the reaction rates are much faster and the substrate scope is considerably wider than those of previous generations of chiral [BiRh] catalysts. As shown by a combined experimental, crystallographic, and computational study, the new catalysts draw their excellent application profile largely from the stabilization of the chiral ligand sphere by London dispersion (LD) interactions of the peripheral silyl substituents
Investigation of intermolecular interactions between [Ho(H2O)8]4+ based 3D metal-organic supramolecular host and bipyridyl guest through crystal structure and Hirshfeld surface analysis
No full textA new supramolecular metal-organic complex 1, [{Ho(H2O)8}4+(TBTA)(bipy)] (where H2TBTA = tetrabromoterephthalic acid and bipy = 4,4'-bipyridyl), has been synthesized hydrothermally at 100 °C by mixing the reactants in stoichiometric ratio. The complex was characterized by single crystal X-ray diffraction (SC-XRD) along with powder X-ray diffraction (PXRD) and other spectroscopic analyses. Structural analysis reveals that 1 crystallized in the tetragonal space group I4cm and is a mononuclear complex. Ho4+ presents octa-coordinated square antiprism geometry having eight coordinated water molecules. Hydrogen bonding interactions between the coordinated water molecules and carboxylate oxygen atoms of TBTA (doubly deprotonated form of H2TBTA) anions form 3D supramolecular metal-organic host (MOSH) having 2D square grid-like supramolecular channels. Guest bipy molecules get stability within the channels through supramolecular π···π interactions between the bipy and TBTA anions. Hirshfeld surface analysis and corresponding 2D fingerprint plots correlate with the experimental findings. C···C short contact, corresponding to π···π interactions, contributes around 10.7% to the total surface
Detecting entanglement can be more effective with inequivalent mutually unbiased bases
No full textMutually unbiased bases (MUBs) provide a standard tool in the verification of quantum states, especially when harnessing a complete set for optimal quantum state tomography. In this work, we investigate the detection of entanglement via inequivalent sets of MUBs, with a particular focus on unextendible MUBs. These are bases for which an additional unbiased basis cannot be constructed and, consequently, are unsuitable for quantum state verification. Here, we show that unextendible MUBs, as well as other inequivalent sets in higher dimensions, can be more effective in the verification of entanglement. Furthermore, we provide an efficient and systematic method to search for inequivalent MUBs and show that such sets occur regularly within the Heisenberg-Weyl MUBs, as the dimension increases. Our findings are particularly useful for experimentalists since they demonstrate that a clever selection of MUBs allows for entanglement detection with fewer measurements
Pre-concentration technique for reduction in “Analytical instrument requirement and analysis”
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