Master of Science / Department of Horticulture and Natural Resources / Cary L. Rivard / Tomatoes and peppers are the most popular and profitable high tunnel crops. However, year-round intensive cultivation and extensive monocropping can lead to a loss of soil quality and the buildup of soilborne pathogens. Many growers are considering grafting to help address the drawbacks of covered agriculture and improve yields. Although many trials have been conducted that examine the ability of rootstock to increase yield or reduce disease, the effect of scion cultivar has yet to be tested, and few studies have attempted to quantitatively assess scion compatibility. In 2016 and 2017, we evaluated ten hybrid, determinate, red slicing tomato scion cultivars for compatibility with ‘Maxifort’ rootstock in a three-season high tunnel in Olathe, KS. While all ten varieties were compatible with ‘Maxifort’, only ‘BHN 589’, ‘Red Deuce’, ‘Skyway’, and ‘Tasti Lee’ were “highly compatible” and showed significant improvements in marketable yield when grafted. Additionally, when ranked by yield, differences between grafted and nongrafted populations suggest that relative compatibility may be inconsistent between varieties. However, a significant inverse relationship between the yield of the nongrafted plants and the percent yield benefit from grafting indicates that the effect of a rootstock like ‘Maxifort’ may not be synergistic, with higher performing nongrafted scion varieties benefitting less from grafting than lower performing varieties. ‘Red Deuce’ and ‘BHN 589’ are productive, and highly compatible grafted varieties with potential for commercial high tunnel production. ‘Primo Red’ benefitted the least from grafting but was the highest performing nongrafted variety (outperforming four of the grafted combinations). Compared to tomatoes, published reports on grafted peppers have been limited and it is unclear whether they provide any advantage in the absence of soilborne disease or environmental stress. Additionally, the use of rootstocks from other solanaceous species outside the Capsicum genus for pepper grafting has not been well explored, though the pool of available rootstock options for peppers would be substantially increased if such graft unions proved to be compatible. The goals of a second project were to identify the utility of grafted pepper (C. annum) plants for commercial high-tunnel production and to explore the potential for graft compatibility between the Capsicum and Solanum genera. We grafted ‘Karisma’ bell peppers onto two Solanum cultivars (‘Maxifort’ and ‘Sweetie’) and three pepper rootstocks (‘Scarface’, ‘Meeting’, and ‘Yaocali’). Five trials were conducted in 2016-2017 and utilized a randomized complete block design in all locations. Plants grafted onto Solanum rootstocks displayed symptoms of delayed incompatibility, including significant (78%-89%) reductions in yield (by weight), 59%-93% less plant growth, and 58% less marketability, as well as malformations at the graft union and higher in-field mortality rates. These symptoms were likely due to differences in mature stem anatomy. Plants grafted to ‘Scarface’ produced 32% greater marketable yield, 15%-18% larger fruit, and 9-12% higher marketability than nongrafted ‘Karisma’. The results for ‘Yaocali’ were similar to ‘Scarface’, though less conclusive. While ‘Yaocali’ and ‘Scarface’ rootstocks may be useful for improving yield in low-stress environments, the use of ‘Meeting’ may be more beneficial for combatting disease.

Orientador: Luiz Antonio de Lima Resende / Banca: Renato Mazzonetto / Banca: Paulo André Teixeira Kimaid / Resumo: Este trabalho estudou pacientes com síndrome do túnel do carpo, submetidos a estudos de condução nervosa em diferentes equipamentos: Nihon-Kohden e Nicolet Viking Select (Grupo I), Neuromax 1000 e Nicolet compass meridien (Grupo II). Para os estudos de condução nervosa sensitiva, não foram observadas diferenças estatisticamente significativas entre os equipamentos. Para os estudos de condução nervosa motora, foram observadas latências motoras mais prolongadas nos aparelhos Nicolet que nos equipamentos Nihon-Kohden e Neuromax. As diferenças entre os equipamentos foram mais pronunciadas para os casos menos graves. / Abstract: This work analysed motor and sensory conduction studies in patients with carpal tunnel syndrome. Different equipments were employed: Nihon- Kohden and Nicolet Viking Select (Group I), Neuromax 1000 and Nicolet compass meridien (Group II). For sensory conduction studies no significant statistic differences were found; for motor conduction studies enlargements of the distal motor latencies were observed for Nicolet equipments in relation to the Nihon-Kohden and Neuromax. The differences were more marked for the slight cases. / Mestre

Nous avons étudié le bruit électronique généré par une jonction tunnel dont les contacts sont portés à des températures différentes, de sorte qu'elle est traversée par un courant de chaleur. Nous avons calculé le bruit attendu, montré que le bruit en excès est proportionnel au courant de chaleur, et effectué des mesures à très basse température. Nous avons bien observé un bruit hors d'équilibre dû à la différence de température entre les contacts mais l'accord théorie-expérience n'est pas encore atteint.

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The velocity profile shape and boundary layer thickness of an equilibrium boundary layer grown over a long fetch of roughness are closely matched with those of a boundary layer artificially thickened using spires (by adjusting the shape and height of the spires). Other turbulent characteristics of these two wind tunnel simula tions of the atmospheric wind are then compared. At the same time, more information on rough wall boundary layers is obtained to allow for a rational choice of the shape and spacing of roughness elements required to produce a particular simulation of the full scale boundary layer. A technique for calculating the shape of boundary layers in exact equilibrium with the roughness beneath, using a data correlation for the wall stress associated with very rough boundaries and a semi-empirical calculation method, is examined experimentally. Wall shear stress, measured directly from a drag plate, i combined with boundary layer integral properties to show that the shear stress formula is reasonably accurate and that the boundary layer grown over a long fetch of roughness is close to equilibrium after passing over a streamwise distance equal to about 350 times the roughness element height. The boundary layer quickly generated using spires proved to be a fair approximation to that grown over a long fetch of roughness, but did not accurately represent the longitudinal turbulence intensity of the full scale atmospheric wind or the naturally grown boundary layer. The boundary layer produced here by spires showed little change in gross characteristics after travelling about eight spire heights downstream of the spires. A distance of six or seven such heights has been advised by other workers in the past. / Applied Science, Faculty of / Mechanical Engineering, Department of / Graduate

Objective of this thesis is to point out to almost everywhere present flaw in realization of second level network security access to WiFi networks with using traffic tunneling over DNS protocol. Realization has been accomplished by existing utilities OzymanDNS, DNS2TCP, NSTX, Iodine, Heyoka. Measurements were done on realistic traffic on the network. The effort was to show outline of these implementations. Transfer speeds in some implementations can be marked as applicable thanks to high speeds, which are on the same level as broadband internet. Functionality was tested on WiFi network, where was also compromised PPTP VPN tunnel, its function was to provide security of the communication on wireless network due to absence of first level security mechanisms such as WPA, WPA 2 and so on, with the help of Asleap, which comes out of Cisco LEAP attack. At the end of the work are suggested possible countermeasures for securing network by the topology change of the network infrastructure or by implementing IDS.

Performance-related musculoskeletal disorders in musicians are common due to the biomechanics required in their craft. Unfortunately, injuries can cause many to abandon music, so determining the best approach to treatment and prevention is key. This case study’s importance is to evaluate the optimal approach to carpal tunnel syndrome in a drummer. The patient is a 55-year-old male full-time drummer with a history of diabetes mellitus and osteoarthritis, who presented to clinic with chronic bilateral hand numbness and tingling that had been present for years. The location of the symptoms were mainly in the palmar aspect of the 1st digit, 2nd digit, 3rd digit, and the radial side of the 4th digit. The symptoms had progressively been worsening, and his discomfort was initially rated at a 10/10 bilaterally. He had tried over-the-counter and prescription anti-inflammatory medications as well as braces without improvement. His physical exam was positive for Tinel’s sign. The diagnosis of carpal tunnel syndrome was eventually made. The patient was treated with bilateral ultrasound-guided carpal tunnel injections with lidocaine and methylprednisolone. The other component of treatment was relative rest, which allowed us to tailor treatment to his drumming. After treatment, his discomfort was rated at 0/10 bilaterally, and he was drumming without issue. It was found that relative rest and carpal tunnel injections are effective in treating carpal tunnel syndrome in drummers. His treatment was tailored to his specific instrument type, which was a key component to the success. Upon review, there is limited to no specific information on treating drummers as a specific group in the literature, but rather more information on treating musicians as a whole. Different instrumentalists have different postures and repetitive movements, so future studies would do well to examine the individual biomechanics of the different instrumentalists to better tailor treatment and prevention.

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