568 research outputs found
Development of a Solution Method to Promote Proper Bandaging Techniques for Transfemoral Amputees
No full textPost-operative care for lower limb amputees focuses on reducing swelling and promoting healing of the residual limb. Healing and desired residual limb maturation is necessary to achieve a conical shape suitable for prosthesis integration. Elastic bandaging is applied to the residual limb to achieve this conical shape. Bandaging requires skill and frequent reapplication. In many cases, the amputee is unable to bandage the residual limb effectively following surgery and professional assistance may not be readily available, increasing the risk of permanent damage due to improper bandaging. Transfemoral amputees are often confined to a wheelchair and spend the most time without a prosthesis fitted compared to any other lower limb amputee. An effective method in achieving the optimum residual limb shape, while promoting proper bandaging is therefore required. The aim of this study was to develop a solution method to assist transfemoral amputees with proper bandaging to achieve a shorter healing period and promote faster prosthesis integration through residual limb re-shaping. An overall solution method comprising of three sub-systems was designed to instruct bandaging. This included the development of a bandaging template, a mobile application and an elastic bandage dispenser. A printable bandaging template generated by a Python script based on the measurements of the patient's residual limb circumferences was developed to instruct bandaging. Development of a mobile application allowed for the design of an interface to control the dispensing device and instruct bandaging steps. The developed Bandage Utility Dispenser (BUD) transmits unrolled bandage length measurements to the mobile application using Bluetooth, to meet the target bandage lengths. Target bandage lengths are calculated by a second Python script to recommend sufficient bandage lengths. Target bandage lengths are expected to apply adequate pressure, while covering the exposed area of the residual limb for the current bandaging step. Testing occurred on an anatomically correct residual limb model (ACM) and five constructed models (CM) assembled by altering proximal and distal ACM circumferential measurements in increments of 5 cm. Measurement and pressure testing were performed after successfully validating the use of the CMs using a Bland-Altman analysis on the ACM and a CM of equal dimensions. Measurement testing utilised a chi-square goodness of fit test to compare observed and expected bandage length measurements for each model. Results for all models indicated that observed and expected measurements did not differ significantly. Pressure testing was performed by measuring the pressure application along the perimeter of the models with assembled pressure pads. Readings were analysed using a one sample t-test to compare differences between sample means and the recommended pressure application from literature. Testing results indicated that pressure application for five of the six models were in an acceptable range. Future recommendations have been established to potentially improve design, functionality and testing of the current iteration of the BUD solution method
Hecalus shanayai Nikoshe & Meshram & Dey 2020, sp. nov.
No full textHecalus shanayai Nikoshe & Meshram, sp. nov. (Figs. 3, 8, 13, 34–40) Male (Figs. 3, 8) Color yellowish green to green. Anterior margin of head with transverse submarginal fuscous line, face (Fig. 13) brown, gena black, frontoclypeus transverse black striae invisible in middle. Compound eyes black, ocelli yellow. Forewings subhyaline, with diffuse fuscous transverse band across costal margin. Bases of tibial macrosetae and tarsi light brown. Head including eyes as long as width of pronotum. Head produced in front, crown length 0.7x shorter than width between eyes. Face as long as wide; anterior margin of pronotum not extending beyond eyes, more or less parallel with eyes. Frontoclypeus longer than wide; frontal suture, terminating laterad of ocelli. Ocelli near anterior margin, very closely oppressed to eyes. Pronotum length 0.2x as long as wide and 0.9x length of scutellum. Male genitalia. Pygofer (Fig. 34) longer than wide, posterior margin triangular, with posterior ½ densely setose. Style (Fig. 36) with preapical lobe obtusely angulate, with few microsetae, apophysis short, 0.25 of the total length. Connective (Fig. 40) with stem 2x shorter than arms. Aedeagal shaft narrowed apically, broad medially in lateral view, foliate in apical 0.2 with sparsely serrated margin, dorsal margin with short subapical tooth, with pair of slender apical processes half as long as shaft extended anterolaterad, gonopore subapical on ventral margin (Figs. 37–39). Measurements (mm). Male 4.63 long, 1.3 wide across eyes, 1.01 wide across hind margin of pronotum. Type material. Holotype ³, INDIA: Maharashtra: Chikhaldara (21.4030° N, 77.3268° E), 22.ix.2015, Sweep net Coll. Akash Nikoshe (NPC). Paratypes, 6 ³ with same data as holotype. Etymology. This species is named in honour of “Miss Shanaya” (daughter of the corresponding author) for her support to the author to pursue his passion in leafhopper taxonomy. Remarks. Hecalus shanayai sp. nov. externally resembles H. lutescens (Distant) (Figs. 2, 7, 12, 27–33) but differs in having the aedeagal shaft foliate in the apical 0.2 with a sparsely serrated margin, the dorsal margin with a short subapical tooth, and lacking mid-dorsal lateral expansions which are more distinct in the latter. From H. ghauri Rao and Ramakrishnan, (Figs. 19, 20 & 21) it can be distinguished by the aedeagal shaft foliate in the apical 0.2 with a sparsely serrated margin, the dorsal margin with a short subapical tooth, and lacking mid-dorsal lateral expansions more distinct in the former.Published as part of Nikoshe, Akash P., Meshram, Naresh M., Stuti & Dey, Debjani, 2020, Indian Hecalina (Hemiptera: Cicadellidae: Deltocephalinae: Hecalini) with description of three new species, pp. 573-585 in Zootaxa 4881 (3) on pages 576-578, DOI: 10.11646/zootaxa.4881.3.9, http://zenodo.org/record/428398
Design and Development Towards a Novel Prosthesis for Total Shoulder Arthroplasty to Reduce Aseptic Glenoid Loosening
No full textTotal shoulder arthroplasty (TSA) is the most common surgical solution, that helps in restoring the structural and functional integrity of a diseased glenohumeral (GH) joint with intact rotator-cuff. A 300% increase in the usage of TSA has been observed since 2007, along with 2.5% increase in revision rate. Aseptic glenoid loosening accounts for 37% of postsurgical failures in TSA. Eccentric loading of the prosthetic glenoid cup, leading to the “rocking horse” effect, is one of the prevalent causes of aseptic glenoid loosening. Current anatomical total shoulder prosthesis (ATSP) geometry does not consider all the GH morphometric features, for example the elliptical shape of the humeral head. Moreover, the morphometric studies leading to the initial ATSP design did not consider the GH morphology of any sub-Saharan population. Hence, there exists a gap in understanding of the implications of certain morphometric features on the functionality of a post-TSA GH joint. This thesis had two primary aims to address this gap in knowledge. Firstly, to study the GH morphometric variations between cohorts representing native European (Swiss) and native sub-Saharan (South African) populations. Secondly, to develop anatomically inspired ATSP design concepts and test them using biomechanical and finite element (FE) models, insilico, under standardised testing protocols. The morphometric analysis suggested that an average Swiss humeral head radius of curvature was larger (P28mm or <19mm. Considering both the populations, the inherent shape of an average humeral head was found to be elliptical. The thickest region of the head was found to lie in the posterior region and not at the geometric center. Hertzian contact theory was applied to calculate the GH stresses produced by symmetric and asymmetric elliptical heads. Higher concentric stresses (P<0.001), within the acceptable limit for polyethylene, were observed to be imparted by the asymmetric heads. Population-specific musculoskeletal models were developed to study the post-TSA kinematic variation. When an identical range of motion (RoM) was performed by these models, population-specific variation in muscle moment arms was observed. The novel glenoid designs were not found to alter the post-surgical kinematics. FE models of the biradial, compartmental and pear-shaped glenoid implant designs were subjected to compressive and shear loading according to the American Society for Testing and Materials (ASTM). Using the bi-radial the glenoid cup, with thickened posterior-superior surface, anatomically relevant force distribution patterns could be replicated. Compartmentalising the glenoid prosthesis into concentric and eccentric regions with the gaps, proved to be highly beneficial. When compared to a commercially available glenoid prosthesis, the compartmental prosthesis was able to contain the GH forces to the concentric region for longer, delaying the eccentric loading and therefore potentially reducing the “rocking horse” effect. In the light of the above observations, two conclusions can be drawn from this thesis. Firstly, it would be beneficial if population-specific ATSP were made available for natives of certain geographic locations. Secondly, glenoid prosthesis designs could be compartmentalised to contain the GH joint forces within the concentric regions of the cup which might aid in the reduction of post-TSA complications
By a celebrated author: Nick Carter, Frederic Dey and authorial voice in dime novels
No full textUsing Theodor Adorno's division between culture industry, characterized by standardization and a lack of autonomy, and mass culture, characterized by a more autonomous expressivity of the populace, this thesis explores issues of authorial autonomy and expression in the dime novel industry, focusing on the Nick Carter series. Contemporary discourse about and from the authors is compiled to show authorial engagement with the rhetoric around and from the dime novel industry. Themes of identity and autonomy are examined in the writings by and on Frederic Dey, showing how particular authorial concerns are inscribed into dime novel texts despite editorial attempts to create standardization. This thesis argues that the dime novel industry sits on the border between culture industry and mass culture, both constraining and enabling artistic expression by working-class individuals
Topic mining and categorization in online discussion forums
No full textOnline Forums provide a useful way to engage in discussions about a wide variety of topics, as well as gather custom information for which an exact source may not be available, using a combination of knowledge and human interpretation. Usually forums have categories which cater to a particular topic of interest, allowing information seekers and topic experts to meet. It is thus imperative to organize forum data into an organized structure. In this work we look at methods for categorizing forum posts into appropriate categories, where the number of such categories is large. We compare several baseline methods with state-of-the-art deep learning methods and analyze their performance. We observe that given the highly keyword-centric nature of our data, deep learning methods only slightly outperform baseline methods. Following this, we perform topic modeling on the forum data to find latent topics which creates a hierarchy across forum categories and clusters similar categories. In this process we observe that some of the recent approaches in topic modeling that utilize word embeddings lead to better topics. Finally, we use this hierarchy to perform hierarchical classification of the forum posts to allow better management of the classification task and analyze the benefits of this method.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2022-05-01The student, Jishnu Dey, accepted the attached license on 2020-05-12 at 13:28.The student, Jishnu Dey, submitted this Thesis for approval on 2020-05-12 at 13:30.This Thesis was approved for publication on 2020-05-12 at 14:23.DSpace SAF Submission Ingestion Package generated from Vireo submission #15355 on 2020-08-25 at 17:44:24Made available in DSpace on 2020-08-27T00:51:33Z (GMT). No. of bitstreams: 2
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Prometopidia joshimathensis subsp. yazakii Dey & Uniyal & Hausmann & Stüning 2021, ssp. n.
No full textPrometopidia joshimathensis yazakii ssp. n. Figs 2l–o; 3e; 4b, c, e, f, k; 5f; 6e Prometopidia conisaria: Yazaki, 1995: 18 (specimens from Nepal only), text fig. 575 (female genitalia and 7th abdominal sternite), pl. 100, fig. 11 (♂ moth; Yazaki, pers. comm.) (nec Hampson, 1902). Type-material examined. Holotype ♂, Nepal, Ganesh Himal, 1 km E of Gadrang, 2520 m, 9.iii.1996, 85°16’E 28°09’N, leg. László Bódi & György Makranczy; genitalia slide no. 2367-DS, Barcode No.: BC ZFMK Lep 00595. Coll. ZFMK. Paratypes: 1♂, Nepal, Dhumre, Bimal Nagar, 500m, 29.–30.iii.1995, 84°26’E 27°55’N, leg. László Bódi & György Makranczy; genitalia slide No. 2368-DS, Barcode No.: BC ZFMK Lep 00597; 1♂, Nepal, Ganesh Himal, 1 km SW of Gadrang, 2900 m, 10.iii.1996, leg. László Bódi & György Makranczy; genitalia slide No. 2399-DS, Barcode No.: BC ZFMK Lep 00596; 1♀, Nepal, Dhaulagiri Himal, 2,5 km SE of Lebang, 2450 m, 24.iii.1996, leg. László Bódi & György Makranczy; genitalia slide No. 2400-DS, Barcode No.: BC ZFMK Lep 00594; Coll. ZFMK. 1♂, Nepal, Prov. Nr. 2 East, Jiri, 5.IV.1964, leg. W. Dierl; genitalia slide No. ZSM G 424; 1♀, same data, genitalia slide No. ZSM G 20364 (Pritha Dey fec.), coll. ZSM; 1 ♀, Nepal, Kathmandu valley, 5km SW of Kathmandu, Dhankinkali, 25.I.1996, leg. Chenga Sherpa; coll. CMS. Nepal, Kathmandu valley, Godavari, 1600 m: 1♂, 10.i.1992; 1♂, 27.ii.1992; 2♂, 2.iii.1992; 1♀, 16.iii.1992; Godavari, Mt. Phulchouki, 2075–2275 m: 1♂, 2.iii.1992; 1♂, 17.iii.1992; 1♂, 19.iii.1992. Coll. K. Yazaki, Tokyo. Description and diagnosis. Wingspan in males 29–31 mm, female 28 mm. Type-material from Joshimath of the same size as specimens of yazakii ssp.n. from E. Nepal. Pattern and coloration almost the same in both subspecies. There are lighter grey specimens which only have the area outside of the postmedial line darker grey, and completely darker grey specimens.Ante- and postmedial lines are punctate, with the dots on the veins. Females with very indistinct fasciae rarely occur.About half of the specimens of the subspecies yazakii, however, have continuous transverse fasciae (see fig. 2m): two of four in coll. ZFMK, four of eight in coll. Yazaki; the relation may change in larger samples. In both collections the single females have punctate fasciae. Among the nominotypical subspecies from Joshimath (n=7) and paratypes from Punjab (n=3) specimens with continuous fasciae do not occur. The hindwing bases in males of ssp. yazakii are swollen and distinctly modified like a rectangular pouch, with a small, round, membranous section, similar to a tympanum, near the base of the frenulum. The basal part of vein Rs (upper vein of the hindwing cell) is also strongly angled, running adjacent to the distal border of the pouch. The function of this unusual structure is unknown and it should be paid more attention to it in future. Further differences are seen in the shape of the distal process of the 7 th sternite in females: a rather narrow, transverse, almost rectangular process in P. joshimathensis joshimathensis (Fig. 4h), a broader, distally double-curved process in ssp. yazakii (Fig. 3e). The male genitalia of both subspecies are without distinctive differences, but the female genitalia are slightly larger in subsp. yazakii, with the anterior part of corpus bursae larger in relation to the posterior part and a larger signum with wider opening, broader sclerotized ring with more numerous and longer spines. Morphologically, all these differences are considered to be of subspecific value, though the genetic distance is rather high. Distribution. Central and eastern Nepal (Fig. 1 (a)) Etymology. Dedicated to Katsumi Yazaki, Tokyo, one of the best-known experts of East Asian Geometridae, who as the first revising author studied specimens of Prometopidia intensively, designating and figuring also the lectotype of the type-species in the collection of the NHMUK. Moreover, he first recorded specimens of Prometopidia from Nepal. Genetic data. BIN not yet assigned, data based on three sequences with fragment lengths of 407 bp, all from eastern Nepal. Maximum intraspecific variation 1.0%. Genetic distance to nominotypical subspecies 3.3%, requiring confirmation by additional specimens. Genetic distance to P. conisaria 6.7%.Published as part of Dey, Pritha, Uniyal, Virendra Prasad, Hausmann, Axel & Stüning, Dieter, 2021, Revision of the genus Prometopidia Hampson, 1902, with description of the new species P. joshimathensis sp. nov. from West-Himalaya and its subspecies P. j yazakii ssp. nov. from Nepal (Lepidoptera: Geometridae, Ennominae), pp. 28-44 in Zootaxa 4980 (1) on pages 40-42, DOI: 10.11646/zootaxa.4980.1.2, http://zenodo.org/record/488290
Lines of Credit and Consumption Smoothing: The Choice between Credit Cards and Home Equity Lines of Credit
No full textThe author models the choice between credit cards and home equity lines of credit (HELOCs) within a framework where consumers hold lines of credit as instruments of consumption smoothing across state and time. Flexible repayment schemes for lines of credit induce risk-averse consumers with sufficiently high discount rates to underinsure and hold lines of credit instead as a buffer, even when they have access to full and fair insurance markets. Weighing the fixed upfront fees and higher default costs of HELOCs against the advantages of low and income-tax-deductible interest payments, the author finds a threshold level of potential borrowing belowwhich consumers prefer to use credit cards exclusively. Above that threshold, consumers decide touse HELOCs and consolidate all outstanding credit card debt into them; however, a rising probability of default and the resulting loss of equity in the home will put an upper bound on the potential HELOC borrowing that will prevent full debt consolidation.Credit and credit aggregates
An Adaptive Self-modeling Network Model for Multilevel Organizational Learning
No full textMultilevel organizational learning concerns an interplay of different types of learning at individual, team, and organizational levels. These processes use complex dynamic and adaptive mechanisms. A second-order adaptive network model for this is introduced here and illustrated.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Safety and Security Scienc
Dataset of Author Names and Name Frequencies
No full textThis file is a gzipped semicolon separated text file containing block id, frequency of the first name (number of times it appears in the 38M WoC version Q author IDs), frequency of the last name, full name, email, and Author ID. The largest block contains 993 Author IDs. </p
A star-forming galaxy at z= 5.78 in the Chandra Deep Field South
No full textWe report the discovery of a luminous z = 5.78 star-forming galaxy in the Chandra Deep Field South. This galaxy was selected as an ‘i-drop’ from the GOODS public survey imaging with the Hubble Space Telescope/Advanced Camera for Surveys (object 3 in the work of Stanway, Bunker & McMahon 2003). The large colour of (i′−z′)AB = 1.6 indicated a spectral break consistent with the Lyman α forest absorption shortward of Lyman α at z≈ 6. The galaxy is very compact (marginally resolved with ACS with a half-light radius of 0.08 arcsec, so rhl 5. Our spectroscopic redshift for this object confirms the validity of the i′-drop technique of Stanway et al. to select star-forming galaxies atz≈ 6
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