Warm Solutions: Medical Making & Collaborative Infrastructure for Care

Making, as an activity and culture, enables people to participate in technological innovation at non-traditional sites. In healthcare settings, medical makers undertake activities as a part of routine, professional care practice. Their collaborative process occurs at the intersection of centralized healthcare systems and decentralized maker technologies with reflexive opportunities for human-centered design. In my research, I propose a critical view of medical making as an opportunity to reposition the power to participate in design within traditional healthcare practice. I develop my thesis from multiple efforts in a wide ecosystem of medical makers across private and public practice, STEM institutions, academic research labs, and non-profit groups. I apply Science and Technology Studies (STS) and HCI theories to analyze stakeholder efforts in relation to long-term patient-centered care infrastructure. Embedded in practice, infrastructure becomes visible in relation to its use. In my dissertation, I develop an understanding of how stakeholders in healthcare settings and networks influence care infrastructure with maker technologies. I do this by foregrounding the norms, values, and expertise related to stakeholder participation across three sections. First, I re-locate the site where physician-led making begins from labs to the bedside – as safe, reliable, small-scale prototypes. Second, I re-frame the importance of medical making, with lessons from the COVID-19 pandemic, when grassroot- and institutional makers repaired temporary manufacturing breakdowns by creating reliable medical supplies. Third, I re-center the role of point-of-care medical makers, highlighting present-day nurse contributions as makers and contrasting their historically undocumented contributions in routine care. My research work culminates in a discussion of the human infrastructure, in addition to information systems, required to design environments for innovation based on the case study of medical making. For HCI researchers, this work first diversifies design values of novelty to include healthcare values of safety, reliability, and verifiability in collaborative systems, and second, extrapolates lessons from medical making to build fair, equitable, and sustainable infrastructure for collaboration between experts and non-experts. From these value-driven insights, I hope my work further contributes practical, methodological, and ethical implications for multiple stakeholders including policymakers and researchers.Ph.D

Doubly Fed Induction Generator Based Wind Energy Conversion Systems

Doubly Fed Induction Generator for Wind Energy Conversion Systems manages the operation of doubly fed induction generator (DFIG) with an incorporated dynamic channel abilities utilizing lattice side converter (GSC). The fundamental commitment of this work lies in the control of GSC for providing music notwithstanding its slip control exchange. The rotor-side converter (RSC) is utilized for achieving greatest power extraction and to supply required responsive energy to DFIG. Wind vitality transformation framework (WECS) fills in as a static compensator (STATCOM) for providing music notwithstanding when the wind turbine is in shutdown condition. Control calculations of both GSC and RSC are exhibited in detail. Executed venture DFIG-based WECS is reproduced utilizing MATLAB/Simulink . A model of the proposed DFIG based WECS is produced utilizing a fluffy rationale controller. The wind vitality is the favored for all renewable vitality sources. In the underlying days, wind turbines have been utilized as settled speed twist turbines with squirrel confine acceptance generator and capacitor banks. The majority of the wind turbines are settled speed in view of their effortlessness and minimal effort

OBSERVATION OF ULF ELECTROMAGNETIC EMISSIONS BEFORE THE M 7.8 NEW ZEALAND EARTHQUAKE OF NOVEMBER 13, 2016

We analyzed the ground geomagnetic data obtained from a 3-component fluxgate magnetometer at the Eyrewell Geomagnetic Observatory (New Zealand) (43.474 °S, 172.393 °E) from October 1 to December 31, 2016. The study aimed to investigate electromagnetic precursors associated with the M 7.8 New Zealand earthquake of November 13, 2016. This earthquake occurred 54 km northeast of Amberley (New Zealand). Its epicenter was located 158 km from the Eyrewell Observatory. We used three methods focused on the polarization ratio, fractal dimension and principal component analysis to identify anomalies in the geomagnetic data. The time series showed an enhanced polarization ratio at two times, October 20 and October 30, 2016, i.e. before the occurrence of the New Zealand earthquake, and a value ~1 or more during these instances. Since the global geomagnetic indices Kp and Dst were normal in these cases, the enhanced polarization ratio may be related to the preparation phase of the New Zealand earthquake. To further classify them, we applied the principal component analysis to the magnetic data on component H. The first three principal components showed more than 90 % of the variance of the original ultra-low frequency (ULF) magnetic field time series. The first principal component was found to be well correlated with the storm index (Dst) recorded during this period. Again, the second principal component was dominated by daily variations, which were the periodic component of the recorded ULF magnetic field. The temporal variation of the third principal component was analyzed to verify a possible correlation between the ULF emissions and the occurrence of the earthquake. The fractal dimension of components D and Z of the magnetic data decreased initially and sharply increased three days before the New Zealand earthquake

Bis(melaminium) tartrate dihydrate

In the title compound, 2C3H7N6 +·C4H4O6 2−·2H2O, in which the complete anion is generated by crystallographic twofold symmetry, there are O—H⋯O, N—H⋯O and N—H⋯N hydrogen-bonding inter­actions between neighbouring moieties, forming layers parallel to the bc plane. In addition, π–π contacts [centroid–centroid distance = 3.6541 (9) Å] between the six-membered rings of the melamine cations are observed

ANTIOXIDANT, FREE RADICAL SCAVENGING ACTIVITY AND GC-MS STUDIES ON PEDILANTHUS TITHYMALOIDES (L.) POIT

Objective: To evaluate the methanolic extract of the leaves of Pedilanthus tithymaloides for total phenol, total flavonoid, total antioxidant and free radical scavenging ability and detect the phytoconstituents using GC-MS. Methods: The total phenols were quantified using Folin-Ciocalteu method. Aluminium chloride method and Phosphomolybdenum method were used to quantify total flavonoid and total antioxidant contentrespectively. In addition to the above, Ferric thiocyanate assay, the thiobarbituric acid assay,Ferric Reducing Antioxidant Power assay and ABTS assay were performed to know the antioxidant potency of the methanolic extract of leaves of Pedilanthus tithymaloides. The phytoconstituents was detected using GC-MS. Results: The leaves of Pedilanthus tithymaloides recorded a phenolic content of 10.98±0.08 mg TAE/g DW, flavonoid content of 11.49±0.15 µg QE/g DW and total antioxidant content of 6.64±0.05 mg TAE/g DW. The study also revealed significant free radical scavenging ability of the plant leaves as assessed by FTC, TBA, FRAP and ABTS assays. The structural elucidation by GC-MS analysis revealed five different compounds, includingthree esters, an amine and an alkaloid. Conclusion: The study proves the anticipative potential ability of Pedilanthus tithymaloides, suggesting its exploitation in pharmaceutical applications

Fiber-Reinforced Composites in Dentistry: Enhancing structural integrity and aesthetic appeal

This review explored the recent advancements in fiber-reinforced composites (FRCs) within the context of restorative dentistry. Dental composites have undergone significant transformations, with FRCs emerging as a groundbreaking development at the intersection of aesthetics and mechanical performance. The objective of this review is to provide a comprehensive understanding of the innovative strategies employed in FRCs to address the challenges of polymerization shrinkage, wear resistance, mechanical strength, and aesthetics. FRCs, composed of fiber reinforcements strategically aligned within a resin matrix, offer enhanced flexural strength, fracture toughness, and wear resistance, essential for the longevity of dental restorations. The review further explored the dynamic relationship between fiber alignment and restoration design, highlighting the adaptability of FRCs for varied applications, from post and core restorations to bridges and splints. Through an intricate interplay of materials science and clinical demands, FRCs have revolutionized dental composites by seamlessly integrating form and function. This review underscores the transformative potential of FRCs in restorative dentistry, shedding light on the path to enhanced clinical outcomes and patient satisfaction

A Case for Renewed Activity in the Giant Radio Galaxy J0116-473

We present ATCA radio observations of the giant radio galaxy J0116-473 at 12 and 22 cm wavelengths in total intensity and polarization. The images clearly reveal a bright inner-double structure within more extended edge-brightened lobe emission. The lack of hotspots at the ends of the outer lobes, the strong core and the inner-double structure with its edge-brightened morphology lead us to suggest that this giant radio galaxy is undergoing a renewed nuclear activity: J0116-473 appears to be a striking example of a radio galaxy where a young double source is evolving within older lobe material. We also report the detection of a Mpc-long linear feature which is oriented perpendicular to the radio axis and has a high fractional polarization.Comment: 25 pages, 10 figures, appeared in 2002 ApJ, 565, 25

Renewed activity in the radio galaxy PKS B1545-321: twin edge-brightened beams within diffuse radio lobes

Australia Telescope Compact Array (ATCA) images of the giant radio galaxy PKS B1545-321 show a pair of oppositely directed beams emerging from a radio core and ending in bright components that are symmetrically located on either side. These inner beams are embedded within edge-brightened outer lobes of lower surface brightness and the bright ends of the inner beams are well recessed from the ends of the outer lobes. The inner beams and diffuse surrounding lobes share a common central core and radio axis. We propose that the observed inner beams are double lobes which have been created within relic outer lobes as a consequence of a restarting of the central activity; therefore, PKS B1545-321 is a rare opportunity for examining the development of restarted beams within a relic synchrotron plasma cocoon. The inner double representing the new episode has among the highest axial ratios found in typical edge-brightened radio galaxies. The low radio luminosity of the inner double, the narrow and constant transverse extent of its cocoon and the relatively low brightness of the hotspots at its ends are consistent with the almost ballistic propagation expected for a beam that has a low density contrast and is advancing within a relatively light ambient medium.Comment: 30 pages, 12 figures, to appear in ApJ June, 200

Medical Making: Nurse Inclusion in Point of Care Innovation

Presented on November 14, 2019 at 6:00 p.m. in the Global Learning Conference Center, Room 236.Udaya Lakshmi is a PhD Student in the School of Interactive Computing, Human-Centered Design at Georgia Tech.Runtime: 03:16 minutesDesign tools are democratizing the means for innovation. If hobbyist makers 3D print in the basement or the next startup is hacking at the local makerspace, medical practitioners are also making at the point of care. Yet, such innovation at the frontline is recognized primarily among doctors. Maker Nurse, an MIT media lab initiative, found nurses are often stealth innovators who make smaller daily hacks. Nurses are women and often women of color. To facilitate this “low-level” innovation is in effect an improvement in diversity, equity and social justice. My project is motivated to address this bias by first understanding the type of interventional prototypes nurses create and then observing problem-solving through a design course