2,444 research outputs found
The James V. Mangano Collection
No full textThe James V. Mangano Collection holds five boxes of records and ephemera of Mr. Mangano’s career as a Democratic District leader, and Administrative Supervisor at the Kings County State Supreme building. The collection contains correspondence, both professional and personal, memorandums and reports, along with press reports and memorabilia. It is organized into three series. The first series is Correspondence which is broken down into two sub-series, General and Monroe Dinner. The second series is the New York state Supreme Court Administration. The third series is called Special Topics. Brooklyn College Archives and Special Collections also holds two collections which are related to Mr. Mangano. These are the Brooklyn Democratic Party Papers and the Papers of John Rooney
Studies on the cooling systems of the Einstein Telescope cryogenic payloads
No full textEinstein Telescope (ET) is a third-generation gravitational wave detector that will cover a wide spectrum of frequencies measurable on the Earth’s surface, paying specific attention to low frequencies from a few Hz up to 10 Hz (ET-LF). At these frequencies, to achieve a sensitivity at least ten times better than that of current detectors, ET will have to develop innovative technologies that will make the reduction of noise sources possible, especially those of a thermal nature. Therefore, it will be necessary to cool the ET main optics and their suspensions (payload) at cryogenic temperature (10 - 20 K). This will require the development of new cooling techniques, low vibration noise of the cryogenic system and the study of high thermal conductivity and low mechanical dissipation materials. It is extremely important to not only ensure an efficient thermal connection between the payload and the cooling system, but also preserve the mechanical isolation and, therefore, avoid introducing excessive vibrations to the entire system. Here some preliminary studies carried on how to test cryogenic payloads using a test cryostat cooled by means of pulse tube refrigerators and how to cool the payload using superfluid helium-4 are presented
Reimpianto con perno radicolare in idrossiapatite: una tecnica per evitare i problemi legati alla rizolisi
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Immediate loading of modified acid etched dental implants in postextraction sockets: a histological and histomorphometrical comparative study in nonhuman primate Papio ursinus.
No full textImmediate loading of dental implants inserted into fresh postextraction sites has recently been proposed as a novel but challenging surgical approach. However, histological evidence and comparative data are still missing. The aim of this study was an histological and histomorphometrical comparison of submerged and immediately loaded dental implants with a new modified acid etched surface inserted into postextraction sites of nonhuman primates.Thirty-two implants were placed in postextraction sockets of 4 adult Chacma Baboons (papio ursinus). Each baboon received 8 implants: 4 submerged and 4 immediately loaded. The implants were retrieved after 90 days of healing with a 4-mm trephine bur and processed for histology and histomorphometry.The bone-to-implant contact percentage in the submerged and immediate loaded implants was 86.02\% and 86.85\%, respectively, with no statistically significant differences. In the immediately loaded implants a greater amount of ongoing remodeling was observed.Immediate loading seemed to be a valid alternative to conventional technique when a implant is inserted into postextraction sockets. Further comparative studies on a greater number of samples are necessary to confirm our findings
Assessment of the Main Criticalities in the Automotive Battery Supply Chain: A Professionals’ Perspective
No full textThe environmental transition has become a crucial element in the European Commission agenda. In this context, a key role is play by the electrification of the mobility that is viewed as a feasible alternative respect to the traditional fossil fuel paradigm, due to significant energy benefits. However, the scarcity availability of raw materials for producing battery packs and their concentration in few specific areas of the world, is determining high level of uncertainties and vulnerability in the supply chains of European car manufacturers. In particular, they are heavily facing the challenges that this transition is posing, specifically considering the reorganization and the structure of the associated supply chain. Therefore, this paper aims at capturing the perspectives of automotive industry about the different stages of the battery supply chain in the electric vehicle market. To this end, a questionnaire survey has been administrated to a set of identified automotive professionals. The obtained results underline that procurement, production and recycling of batteries are the most critical steps. On the contrary, the transport and the storage of the batteries are seen less crucial. This research is intended to stimulate future studies on innovative supply chains able to better manage batteries, and it is aimed at supporting car producers on designing more accurately their supply chain and to support decision makers in more effectively develop policy in the field of the electric mobility transition
A paradigmatic autistic phenotype associated with loss of PCDH11Y and NLGN4Y genes
No full textBackground: Most studies relative to Y chromosome abnormalities are focused on the sexual developmental disorders. Recently, a few studies suggest that some genes located on Y chromosome may be related to different neurodevelopment disorders. Case presentation: We report a child with sexual developmental disorder associated with a peculiar phenotype characterized by severe language impairment and autistic behaviour associated with a mosaicism [45,X(11)/46,XY(89)] and a partial deletion of the short and long arm of Y chromosome (del Yp11.31q11.23) that also involves the loss of both PCDH11Y and NLGN4Y genes. To our knowledge no study has ever reported the occurrence of the lack of both PCDH11Y and NLGN4Y located in the Y chromosome in the same patient. Conclusions: We hypothesized a functional complementary role of PCDH11Y and NLGN4Y within formation/maturation of the cerebral cortex. The impairment of early language development may be mainly related to the lack of PCDH11Y that underlies the early language network development and the later appearance of the autistic behaviour may be mainly related to deficit of inhibitory glicinergic neurotransmission NLGN4Y-linked
Augmented reality for dental implantology: A pilot clinical report of two cases
No full text© 2019 The Author(s). Background: Despite the limited number of articles dedicated to its use, augmented reality (AR) is an emerging technology that has shown to have increasing applications in multiple different medical sectors. These include, but are not limited to, the Maxillo-facial and Dentistry disciplines of medicine. In these medical specialties, the focus of AR technology is to achieve a more visible surgical field during an operation. Currently, this goal is brought about by an accurate display of either static or dynamic diagnostic images via the use of a visor or specific glasses. The objective of this study is to evaluate the feasibility of using a virtual display for dynamic navigation via AR. The secondary outcome is to evaluate if the use of this technology could affect the accuracy of dynamic navigation. Case presentation: Two patients, both needing implant rehabilitation in the upper premolar area, were treated with flapless surgery. Prior to the procedure itself, the position of the implant was virtually planned and placed for each of the patients using their previous scans. This placement preparation contributed to a dynamic navigation system that was displayed on AR glasses. This, in turn, allowed for the use of a computer-aided/image-guided procedure to occur. Dedicated software for surface superimposition was then used to match the planned position of the implant and the real one obtained from the postoperative scan. Accuracies, using this procedure were evaluated by way of measuring the deviation between real and planned positions of the implants. For both surgeries it was possible to proceed using the AR technology as planned. The deviations for the first implant were 0.53 mm at the entry point and 0.50 mm at the apical point and for the second implant were 0.46 mm at the entry point and 0.48 mm at the apical point. The angular deviations were respectively 3.05° and 2.19°. Conclusions: From the results of this pilot study, it seems that AR can be useful in dental implantology for displaying dynamic navigation systems. While this technology did not seem to noticeably affect the accuracy of the procedure, specific software applications should further optimize the results
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