113 research outputs found
Correction: Alvarado, M., et al. Towards the Development of a Low Cost Airborne Sensing System to Monitor Dust Particles after Blasting at Open-Pit Mine Sites. Sensors 2015, 15, 19667–19687
No full textThe author wishes to change Figure 1 and Figure 3 from his paper published in Sensors [1], doi:10.3390/s150819667, website: http://www.mdpi.com/1424-8220/15/8/19667 for Figures 1 and 2 presented in this ‘Correction’.[...
Correspondence related to article "Statins for primary prevention: what is the regulator's role?" by Jefferson et al. 2020
No full textPDFs of emails between the author team (Jefferson, Demasi, and Doshi) and EU national competent authorities, as described in their article Jefferson et al. "Statins for primary prevention: what is the regulator’s role?" https://doi.org/10.1136/bmjebm-2019-11132
In conversation with… Balkrishna Doshi
No full textIndian architect Balkrishna Doshi, 2018 Pritzker Prize, has recently turned 92, remaining in full and enthusiastic dedication to his architectural vocation and his family. José María Lozano Velasco, UPV architectural project Professor, had the opportunity to meet him at Sangath– his studio in Ahmedabad– last August, to share common concerns and learn from this architectural master, though he eschews being given such titles. Right when the second opportunity to get to know his work in detail had just concluded –this time at the Architekmuseum der TUM, part of Munich’s Pinakothek der Moderne art museum– through the splendid exhibition called Architecture for the people produced by the VITRA museum of Weil am Rhein, the author’s first-hand reflections in his own voice are enlightening for better comprehension of his work.
It is well-known the invaluable collaboration that Doshi maintained with the great master Le Corbusier in the conception and execution of Chandigarh, in addition to the essential participation of our architect on the Campus of the Indian Institute of Management in Ahmedabad of Louis Khan. It is also interesting to study the influence of both his first works as well as to observe his evolution towards the magic of Amdavad ni Gufa or his deep concern for low-cost housing, which in the district of Aranya, Indore, becomes a reality.
We cannot preclude the studies of colleagues and friends such as William Curtis or Kenneth Frampton who, with more authority than us, have addressed the matter.
This article is the result of the compiled knowledge and consideration given to the large part of the work plus the enriching conversation with its author. However, its approach is different as we have intended to investigate those reasons that made the first Doshi period be known as “Tradition and Modernity”, using the most magical (or mythical, as he likes to refer to them) and main tool to transmit them: the drawing (and the coloured drawing).
This article includes literal or adapted transcripts from some passages of the meeting and have been contextualized for more better readability
Towards the development of a low cost airborne sensing system to monitor dust particles after blasting at open-pit mine sites
No full textBlasting is an integral part of large-scale open cut mining that often occurs in close proximity to population centers and often results in the emission of particulate material and gases potentially hazardous to health. Current air quality monitoring methods rely on limited numbers of fixed sampling locations to validate a complex fluid environment and collect sufficient data to confirm model effectiveness. This paper describes the development of a methodology to address the need of a more precise approach that is capable of characterizing blasting plumes in near-real time. The integration of the system required the modification and integration of an opto-electrical dust sensor, SHARP GP2Y10, into a small fixed-wing and multi-rotor copter, resulting in the collection of data streamed during flight. The paper also describes the calibration of the optical sensor with an industry grade dust-monitoring device, Dusttrak 8520, demonstrating a high correlation between them, with correlation coefficients (R(2)) greater than 0.9. The laboratory and field tests demonstrate the feasibility of coupling the sensor with the UAVs. However, further work must be done in the areas of sensor selection and calibration as well as flight planning
Effable Nature in Unheard Stories : Tishani Doshi\u27s Poetics of Discovery
No full textThis article aims to study the multiple nature metaphors used in Tishani Doshi’s poetry to convey messages of understanding and epiphany. Born in 1975 in Madras (now Chennai), Doshi is an Indian author and academic who has gained indisputable reputation as a novelist and poet, with other cultural and artistic interests like dancing and writing journal articles. She is especially devoted to narrating the urges of contemporary human existence, and to defending class, gender, and racial rights violated by capitalist patriarchal anthropocentrism, all while embracing the aesthetic beauty of artistic creation as a weapon to change the world. Therefore, in her writings, Doshi makes use of subtle environmental elements (with an emphasis on animal and vegetal metaphors) to be able to speak about the ineffability of being, without discarding ideological urges and liminal tensions. Thus, Doshi pushes to the limit the essence of poetry in a self-quest to discover essential truths and cultural nuances. Hers is therefore a poetics of revelations, darkened by the oxide patina of everyday conventions and stereotypes, that needs to be polished and moulded in the hands of bards
The Subjunctive Pause The Nature of Architecture and Its Representation in the Works of Indian Architect Balkrishna Doshi
No full textThis dissertation takes a critical look at architectural storytelling that imparted a polysemic and contronymic nature to architecture and its representation in the works of Indian architect, Balkrishna Doshi (b.1927). It studied three modes of architectural storytelling that Doshi adopted, namely, tectonic (through his buildings), visual (through his miniature painting style illustrations), and literary (through his written stories). His non-conventional ways of storytelling disregarded the notion of architectural creation and representation as a formulaic and precise visual image and explored the possibility of converting them into instruments of imaginative dreaming for making, inhabiting, and conversing in architecture. Doshi's built work and its representation, created a 'pause'—bringing in a reorientation to present the invisible by offering a poetic and syncretic virtual world. This 'pause' solicited engagement. It was a clever contraption to engage in an imaginative understanding, conceptualization, inhabitation, making, and reading of built work and its representation, inculcating novel points of view to engage in a broad and deep architectural discourse. This dissertation argues that the 'pause' was a quality of architectural conceptualization, experience, and representation that imparted to his architecture a subjunctive character that opened a space of translation between the author (architect) and the reader (users and others who are involved in the architectural creation) to foster an imaginative assimilation of architectural activities, in which they viewed architectural creation not only through a positivistic lens, but allowed the imaginative, oneiric, and fantastical to contribute. For Doshi, architectural creation assumed the form of a verb—the act of dreaming collectively a numinous architecture, rather than a substantive—the architecture of production that celebrated the singularity of the architect or the building as a seductive and commercialized image ignoring what he considered the basic tenet of architecture, which is its ability to promote a joyful and virtuous human life. The subjunctive act of dreaming that Doshi demonstrated and induced for others to practice created a contronymic condition through storytelling, by evoking the latent presence of a virtuality, the particularity of which was its ability to make architecture and its representation become analogous, vying for each other's status and qualities
MRI in Coccydynia
No full textPatients who are diagnosed clinically as Coccygodynia often do not get satisfactory relief. The clinical diagnosis is based on various hypotheses that have been proposed to explain the pain of coccydynia - including coccygeal spicules, pain from the pericoccygeal soft tissues, pelvic floor muscle spasm, referred pain from lumbar pathology, arachnoiditis of the lower sacral nerve roots, local posttraumatic lesions, somatization, etc. The diagnosis is difficult and the pathophysiology is poorly understood. Till recently, use of dynamic X-rays and MRI imaging was not considered to diagnose this condition. The author would like to report three patients who presented to the pain clinic with refractory coccygeal pain and underwent dynamic coccyx X-rays and MRI as part of their evaluation. All these patients had positive findings on MRI. These patients were treated satisfactorily as a result of the added diagnostic value of MRI
Associations between substance use and teen dating violence perpetration in adolescents
No full textThis study uses a short-term longitudinal design to examine the association between substance use and teen dating violence perpetration over time. This research also examines conflict resolution style to assess for any buffering effects that could occur. The models are analyzed across gender to determine if any differences exist between boys and girls in the sample. These relations are examined using longitudinal data collected at two time points over a period of a year in a diverse (51.2% female, 68.7% Nonwhite, 31.3% White) high school sample of 1,621 adolescents. Multiple regression analyses did yield a significant association between substance use (i.e., alcohol use, binge alcohol use, and addictive drug use reported in the last 30 days) and physical/threatening, verbal, and relational teen dating violence perpetration for both males and females. A Wald chi-square test is posited for these associations to determine if the effects of the various substance use variables on each form of TDV perpetration are significantly different for males and females; data is then examined using multiple group analysis varied by gender. Results show that the effects of alcohol and binge drinking on physical/threatening TDV perpetration are significantly higher for males than females, whereas the effects of addictive substance use on physical/threatening TDV perpetration are significantly higher for females than males. Results also show that the effects of alcohol, binge drinking, and addictive substance use on verbal TDV perpetration are significantly higher for females than for males. Problem solving interaction style was added into the model to test any buffering effects on the relationship between substance use and TDV perpetration. Results indicate that problem solving conflict resolution style did not significantly change the association found between reported substance use and the amount of TDV perpetration reported. The implications of these findings and potential future directions for prevention are discussed.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2019-08-01The student, Namrata Doshi, accepted the attached license on 2017-07-11 at 18:03.The student, Namrata Doshi, submitted this Dissertation for approval on 2017-07-11 at 18:22.This Dissertation was approved for publication on 2017-07-14 at 09:08.DSpace SAF Submission Ingestion Package generated from Vireo submission #11411 on 2018-03-02 at 13:01:35Made available in DSpace on 2018-03-02T19:59:34Z (GMT). No. of bitstreams: 4
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Post traumatic pain: ?CRPS
No full textAlthough there is an increased awareness of and treatment of acute pain in infants and children, the lack of awareness on various chronic and persistent pains in children often leads to physicians/pediatricians pursuing an endless search for the underlying etiology of the discomfort. Continued lab investigations are undertaken for the sake of "completeness" to search for a biological explanation for the pain. The author would like to present this case report where there was no obvious cause for the pain found on investigations. The child was treated for neuropathic pain with complete recovery. Though complex regional pain syndrome (CRPS) was suspected, the difficulty in establishing a diagnosis, convincing caregivers and compliance to pharmacotherapy are the major challenges in the pediatric pain patients
Functionalized organoboron polymers and supramolecular structures of pentafluorophenylcopper:
No full textThis thesis is divided into four different parts. The first three chapters discuss the development of synthetic routes to new boron containing polymers for their potential use as supported borane reagents (Ch. 1.) and photoluminescent materials (Ch. 2. and Ch. 3.). The last chapter (Ch. 4.) discusses the formation of supramolecular structures of pentafluorophenylcopper upon complexation with pyridine nucleophiles and electron rich aromatic π-systems. The individual research projects are briefly summarized in the following.
Ch. 1. The functionalization of synthetic polymers with organoborane moieties has been extensively studied for applications as supported catalysts, sensors, stimuli responsive polymers, flame retardants, preceramic materials, and as intermediates for the preparation of other functional organic polymers. A polystyrene derivative in which the para-positions of the phenyl rings are selectively functionalized with BH2 moieties (PS-BH2) has been prepared from poly(4-trimethylsilyl styrene). The polymer was successfully isolated in the form of its polymeric acid-base complexes PS-BH2•D (D = tBuPy, PPh2Me). The selective and nearly quantitative placement of the BH2 functionalities was confirmed by multinuclear NMR spectroscopy and IR spectroscopy. Their thermal properties were studied by differential scanning calorimetry and thermogravimetric analysis.
Ch. 2. Boron containing water soluble polymers could find a variety of applications as polyelectrolytes, for anion recognition in aqueous media and in various biological fields. We have previously shown that polystyrene based side chain functionalized triarylborane polymers can be employed as sensors for the recognition of cyanide and fluoride in organic media. Here we have persued the synthesis of polystyrene that bears Lewis acidic boron centers and dimethylamino-functionalized mesityl groups in the side chain. Attachment of these mesityl groups to the boron center has been realized by the use of boron-silicon exchange, followed by the replacement of the bromine on boron by suitable Grignard reagents. The polymers and model compounds show interesting photophysical properties and have the potential to be applied for anion sensing in aqueous media.
Ch. 3. Main chain organoboron conjugated polymers have been established as an important class of materials due to their unusual optoelectronic properties. This behavior arises as a result of overlap between the empty p-orbital on boron and the conjugated π-system. The hydroboration polymerization and in situ Grignard synthesis have been employed for the preparation of such polymers. Here we have synthesized boron-functionalized distyryl monomers, which can be polymerized via ADMET polymerization. All monomers and ADMET products were characterized by multinuclear NMR spectroscopy. Moderate to high molecular weights in the range of 5,000-10,000 have been obtained. Photophysical data show that polymer emits in the blue-green region.
Ch. 4. Treatment of organocopper species with strongly coordinating ligands is known to lead to break-down of the aggregated structures. One such example is the 1:1 complex of pentafluorophenylcopper with pyridine. The monomeric pyridine adduct shows an intriguing supramolecular structure governed by cuprophilic interactions. This complex was also found to display strong blue luminescence in the solid state at room temperature. To further examine the structural and photophysical properties of this new class of complexes, the pentafluorophenylcopper tetramer was treated with different substituted pyridine ligands. The coordination of these ligands to copper was confirmed by 1H, 19F, 13C NMR spectroscopy, x-ray crystallography and elemental analysis.
Treatment of pentafluorophenylcopper with π-bases such as bithiophene, naphthalene anthracene or pyrene lead to novel luminescent supramolecular structures that feature the intact organocopper aggregate as the building block. Formation of bis-adducts with two equivalents of arenes was realized and the formation of sandwich-like structures of the intact tetramer and the corresponding arene was observed via single crystal x-ray analyses. Interestingly, the 1:1 complexes form extended binary stacks in the solid state, where the intact tetramer alternates with the arene.Ph.D.Includes bibliographical referencesby Ami P. Dosh
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