Sticky Tape Research Articles

Soft nasal bolster or tape nasal dressing after sinonasal surgery: The patient knows best

Background: Rolled up gauzes held in place under the nose with a sticky tape applied to the cheeks are routinely used immediately post-op on patients following their sinonasal surgery. Removal of the tape can be painful for patient. To avoid this, we introduced a nasal bolster made by putting a rolled up swab in an elasticated tubular bandage which is then tied at the back of the head. Methods: A prospective patient satisfaction survey questionnaire carried out over 8 months from inpatient stay patients who underwent sinonasal surgery. A database was created to record patient demographics, type of surgery, type of bolster used, patients reported satisfaction and preference for type of nasal bolster scored on a visual analogue scale (VAS) from 1-10. Results: A total of 130 (Male 77; age range 14-79 years) completed the questionnaires. Most common operations were FESS and septoplasty. Of the 130 patients, 100 used only the soft nasal bolster and scored it 8.5/10 on the VAS. A cohort of 30 patients used both types of bolsters and had preferred the soft bolster compared to the tape dressing (VAS 8.3 vs 3.8). Conclusion: Our simple service evaluation study shows that non-adhesive nasal bolster is preferred following sinonasal surgery. The soft nasal bolster is easy to make at a relative small cost and is non-abrasive and painless for post-op patients. Therefore, we propose the soft nasal bolster should be more widely used in post-operative care for patient comfort.

Penerapan Model Pembelajaran ELPSA dengan Media Pita Tongkat untuk Meningkatkan Pemahaman Konsep PLSV

This research is motivated by the real condition that students do not understand the concept of linear equations and one variable linear inequality and the teacher tries to improve understanding of these concepts. An alternative to solve this problem is by applying experiences, language, pictures, symbols, application (ELPSA) learning model using sticky tape media. This study aims to improve students' understanding of concepts in the subject matter of linear equations and inequalities with one variable in junior high school mathematics. Research subjects, students of SMPN Bulo Odd Semester 2018/2019 Academic Year class VII A consisted of 27 people. Methods of data collection, observation, tests, questionnaires and field notes. The implementation is carried out in 3 cycles, each cycle consisting of planning, implementing, observing, and reflecting. The data analysis technique was carried out in a descriptive qualitative manner. Descriptive analysis, to describe the implementation of the learning model and calculate the percentage of students who completed. Qualitative analysis using flow methods, namely data reduction, and drawing conclusions or verification. Conclusion (1) Learning with the ELPSA model with stick tape media can improve the concept of linear equations and inequalities of one variable in students of SMPN Bulo class VII A. (2) The ELPSA learning model with stick tape media can improve learning outcomes of linear equations and inequalities of one student variable SMPN Bulo class VII A.

3D printed solder masks for printed circuit boards

The use of additive technologies in the creation of soldering masks opens up new opportunities in the production of printed circuit boards, in particular, the use of soldering masks for boards with integrated components. The paper considers the results of experimental data on the adhesion of 3D soldering masks (that is, masks created on a 3D printer) obtained during the study of the introduction of 3D printing into electronic manufacturing processes. For the analysis of adhesion, it is possible to use such methods as breaking load, cross-cut test, and the sticky tape method. A number of experiments were conducted to study the adhesion by testing the breaking load. The samples were formed with different ratios of prepreg/solder mask, then the force at which the fracture occurred was measured. The essence of the cross-cut test is to apply at least three parallel cuts and perpendicular to them also at least three parallel cuts with the tip of the cutter. After the scratching, there must be no flaking of the coating between the lines and in the grid of squares, then the results are assessed. Sticky tape tests are performed by applying the tape with the adhesive side to the test sample with a cured coating applied. The results are assessed by visual inspection using an optical device that provides 3x magnification. The results of the breaking load experiments indicate that 3D masks show comparable separation forces with a prepreg. At the same time, the force is stable for all types of surfaces and practically does not depend on the thickness and configuration of the 3D mask. Experiments with applying cross-cuts show consistently good results with a homogeneous base material – there are no coating detachments. The paper concludes that the use of 3D soldering masks on the inner layers of multilayer printed circuit boards with built-in components is possible, but a number of issues must be solved for this, including those related to the software for forming 3D structures of masks.

Features of the fungal spectrum in the air environment in the Rostov region according to the results aeropalynologic monitoring 2019

BACKGROUND: In recent decades, there has been an epidemic growth of allergic diseases, in which fungi along with other allergens significantly play a role in their etiology. Spores of a number of micromycetes are present in the air. Aeropalynology environmental monitoring enables examination of the composition of airborne microorganisms, their dynamics, and role in the formation of allergic diseases. The Rostov region has climatic and geographical features that affect the qualitative and quantitative compositions of the fungal spectrum in the air environment. AIM: This study aimed to investigate the composition and features of the fungal spectrum of the air environment in Rostov-on-Don, to assess the dynamics of the concentration of fungal spores during the monitoring period (March to October), and to make a calendar of plant pollination and fungal spore production for this region. MATERIALS AND METHODS: In this longitudinal, observational, single-center study, aeroallergens were detected using a volumetric Burkard trap. Identification of plant pollen and fungal spores was performed by microscopy of colored slides obtained from a sticky tape covered with a special mixture. RESULTS: Results of aeropalynological monitoring in 2019 in the air environment of Rostov-on-Don revealed the presence of pollen taxa and fungal spores, represented by the mold fungi Cladosporium herbarum and Alternaria alternata in high increasing concentrations. Their dynamics were recorded throughout the observation period (March to October). The specific weight of fungal sensitization in patients with seasonal allergic rhinitis was 11.6%. CONCLUSIONS: This study identifies the regional features of the fungal spectrum of air allergens, and a calendar of dusting and sporulation was compiled for the city of Rostov-on-Don.

How to unloop a self-adherent sheet

The mechanics of adherent sheets is central to applications ranging from patching a band aid, coating technology, to the breakthrough discovery of peeling graphene flakes using sticky tape. These processes are often hindered by the formation of blisters and loops, which are notoriously difficult to remove. Here we describe and explain a remarkable phenomenon that arises when one attempts to remove a loop in a self-adherent sheet that is formed by, e.g., folding two adhesive sides of a tape together. One would expect the loop to simply unloop when pulling on its free ends. Surprisingly, however, the loop does not immediately open up but shrinks in size, held together by a tenuous contact region that propagates along the tape. This adhesive contact region only ruptures once the loop is reduced to a critical size. We experimentally show that the loop-shrinkage results from an interaction between the peeling front and the loop, across the contact zone. This new type of interaction falls outside the realm of the classical elastica theory and is responsible for a highly nonlinear increase in the peeling force. Our results reveal and quantify the increased force required to remove loops in self-adherent media, which is of importance for blister removal and exfoliation of graphene sheets.

Position-controlled remote epitaxy of ZnO for mass-transfer of as-deployed semiconductor microarrays

We report the site-selective remote epitaxial growth of mechanically transferable ZnO microrod (MR) and microdisk (MD) arrays via hydrothermal growth. To designate the growth sites, a hole-patterned poly(methyl methacrylate) mask layer is formed on the graphene-coated GaN substrate. ZnO microarrays are exclusively grown to be either MR or MD on graphene-exposed patterned areas via the remote epitaxy. The remote heteroepitaxial relation between ZnO and GaN across graphene is observed by atomic resolution scanning transmission electron microscopy. The non-covalent remote epitaxial interface allows the mechanical lift-off of the ZnO microarrays and mass-transfer onto a surface of interest using a sticky tape as those arrays are well maintained. The donor substrate is refurbished for repetitive position-controlled remote epitaxy. This study provides a simple method of fabricating mass-transferable microarrays of semiconductors that can maintain the addressable spatial arrays of semiconductors to an arbitrary receiver substrate for ease of heterogeneous integration without an additional assembly process for position control.

Abundance and flight activity of Frankliniella occidentalis (Thysanoptera: Thripidae) in a female chrysanthemum crop for seeding, Colombia

Commercial flower crops in Colombia are largely grown within plastic greenhouses in the Sabana de Bogotá (Bogota Plateau). This study examined the abundance and flight activity of thrips in a chrysanthemum crop, estimated from plant samples, commercial yellow sticky traps, and non-commercial (self-crafted) yellow sticky tape traps installed in the crop. Frankliniella occidentalis was the dominant species present associated with all plant phenological stages. Abundance of larvae and adults was not evenly distributed throughout the greenhouse. An absolute method of plant sampling found 2.5 times more thrips larvae than the relative method of sampling plants by beating. For non-commercial traps, there was no difference in the number of thrips at different trap heights; however, traps facing the south-west caught significantly more thrips than traps facing north-west, north-east, and south-east. A moderate positive correlation was found between the number of thrips sampled on plants and the spatial location of the commercial sticky traps. The results found here provide a basis to design and standardize direct sampling methods for thrips on plants and indirect sampling using yellow sticky traps for monitoring and managing thrips in ornamental crops under plastic covers in Colombia.

How does ‘Gecko tape’ work?

Human-made adhesives lose their tack rapidly after first use, while animals such as geckos can reuse their adhesive feet for a lifetime. Nature's use of fibrillar structures as strong, renewable and self-cleaning adhesives has inspired the development of synthetic adhesives with similarly structured surfaces. More than a decade of research and engineering has culminated in ‘gecko tape’: a re-useable adhesive that has a structured surface similar to that of geckos and that outperforms the usual sticky tape. We report experiments that show that, despite its name, a commercial gecko tape shares few adhesive principles with its eponym. In particular, we find no evidence that the micrometric features that are present on the surface of the gecko tape play a role in its adhesive strength. In addition, we find that contrary to the gecko, the tape leaves behind a layer of adhesive after removal from the surface. The fact that the gecko tape outperforms a conventional adhesive tape is due to the fact that the softness of the backing of the gecko tape allows to create a much larger contact area for a given normal force. The conclusion is that surface features are not necessary to create a superb adhesive; tuning the backing layer elasticity may be enough.

Aeropalynologic monitoring of air pollution in the Rostov region: the results of the 2019 season

BACKGROUND: There is an increase in the proportion of patients suffering from allergic diseases caused by the plant pollen. Aeropalinologic monitoring of the air environment allows us to study the composition of aeroallergens and their role in the formation of pollen allergies. Features of the formation of aerial pollen spectra are closely related to the botanical-geographical and natural-climatic conditions of the region. The Rostov region has its own specific features, which is reflected in the qualitative and quantitative composition of pollen rain.
 AIM: To study the dynamics of pollination of allergenic plants in Rostov-on-Don, identify the prevailing taxa and create a calendar of pollination of plants for this region.
 MATERIALS AND METHODS: Aeroallergens were detected by using a volumetric Burkard trap. The identification of plant pollen and fungal spores was performed by microscopy of colored slides obtained from a sticky tape covered with a special mixture.
 RESULTS: In 2019, 21 taxa were registered in the air environment of Rostov-on-don (trees, meadows, haze, cereals, weeds), fungal spores were found in the air, represented by the mold fungi Cladosporium herbarum and Alternaria alternata in high growing concentrations. An increase in the vegetation period of pollination of trees (07.03.31.06), mares (02.0503.10), cereals (02.0414.09), weeds (18.0728.10) was detected According to the dynamics of pollen concentration, three periods of its growth were registered: spring-summer, summer and summer-autumn. The presence of birch pollen grains in a clinically significant concentration (36 pollen grain (PG)/m3) in this steppe region, an increase in the peak concentration of ragweed (393 PG/m3) in comparison with the same data for 1971 (265 PG/m3) was found.
 CONCLUSION: Regional features of the spectrum of air allergens were identified, and a dusting calendar was compiled for Rostov-on-Don.

Protection of organic cereals from insect and rodent pests in a warehouse by combined use of traps and sticky tapes

Several options of protection of organic cereals (winter and spring wheat, rye and maize) from insect and rodent pests, using a combination of traps (with or without pheromone/ attractant) and sticky tapes and no chemicals, were tested in a warehouse over the summerspring season of 2019/2020. Temperature in the warehouse was 14-29?C and humidity around 50%. The average grain moisture of winter and spring wheat and rye was 10-11%, while it was 12-14% in maize grain, and the average grain temperature of all cereals was 13-27?C. Regarding stored-product insect pests, five coleopteran, two moth and one Psocoptera species were detected, and the coleopterans predominated (98.5%) along with secondary pest insects (94.0%). Regarding rodents, only specimens of Mus musculus were found throughout the test period, their maximum monthly frequency being 72 (in January 2020). A combination of traps (with or without pheromones) and sticky tape barriers was found to provide an effective tool for trapping insects. Also, snap traps and trapping boxes for killing rodents, when used simultaneously with sticky tape barriers, were found to provide good protection of cereals from house mice. The pest control effect was also confirmed by collecting samples of organic cereal grain, which showed no significant presence of stored-product insects or grain damage (0.94% and 0.96% in spring wheat and rye, respectively) at the end of the test period. The results showed a great potential of combined application of traps and sticky tapes for protecting organic cereals in horizontal bulk storages, but the use of chemicals approved for organic food production would be required under extended storage periods.

Evaluating the distribution of sugar beet seeds at sowing

A mathematical model is proposed for the formation of a uniform row of seeds in the sowing furrow in order to place them at the same intervals. A key role in this process is played by the random deviation of each seed from the intended place of laying. A mathematical model using probability theory was developed based on the results of laboratory experiments with sugar beet seeds sown onto sticky tape. The consistency of spacing between seeds is influenced by seed rate, i.e. seed number per one meter length of row, the speed of the seeders and the speed of rotation of a seed disc in the machine of exact seeding. Studies have shown that a sufficiently high accuracy of seed placement is achieved if the seeding disc rotates at a speed of 0.24-0.27 m/s, the speed of the drill is not more than 6 km/h, and the seeding dose is not higher than 8 pcs/m. In the field, the coefficient of variation of intervals is higher than on sticky tape, but does not exceed 0.33. There is no seed inversion, and the yield level is more than 98% of the maximum possible. Further improvement in seeding quality can only be achieved by further reducing the speed of precision seeding drills or by design upgrades to align the speed of the seeding machine and the rotation speed of the seeding disc.

Helen Salisbury: Clutching at straws (and sticky tape).

Doctors like to have answers: it makes us feel useful. GPs take pride in our tolerance of uncertainty, but even we are being pushed beyond our comfort zone by current circumstances, and many of us are very apprehensive. Having lost patients and colleagues during the first wave of the covid-19 pandemic, I now fear—despite voices raised in dismay, then and now—that some of the mistakes from March are about to be repeated. We were told in June that a functioning test, track, and trace system was the key to getting England safely back to work, but it’s still lacking.1 As schools go back …

Field Perimeter Trapping to Manage Rhagoletis mendax (Diptera: Tephritidae) in Wild Blueberry.

Rhagoletis mendax Curran (the blueberry maggot fly) is a major pest of wild blueberry. It is a direct pest of the fruit. Females lay eggs in fruit resulting in infestations of larvae unacceptable to most consumers. Three field perimeter interception tactics were tested for control of R. mendax in wild blueberry, Vaccinium angustifolium Aiton (Ericales: Ericaceae), between 2000 and 2010. We investigated field perimeter deployment of baited, insecticide-treated, green spheres (2000-2005), baited, yellow Trécé PHEROCON AM traps (2005 and 2006), and baited, Hopper Finder, sticky barrier tape (2008-2010). Only the Hopper Finder tape provided significant reduction in R. mendax adults and fruit infestation over the 3-yr field study. However, the reduction in fruit infestation compared with control plots was only 48.2 ± 7.3%, a level of reduction in damage that would be unsuitable for many commercial wild blueberry growers as a stand-alone tactic, but could be an important reduction as part of a multiple tactic IPM strategy. In addition, we constructed an agent-based computer simulation model to assess optimal trap placement between three patterns: 1) a single row of traps along field perimeter; 2) a double row of traps along the field perimeter at half the density of the single row; and 3) a grid of traps spread throughout the field but with the largest distance between traps. We found that the single row deployment pattern of traps was the best for reducing immigration of R. mendax adults into simulated fields.

Enterobius vermicularis infection associated with appendicitis, Meckel’s diverticulitis, and peritonitis

Enterobius vermicularis (EV) is a tiny helminth that lives in the human cecum. Its prevalence varies widely by region and social setting. It is diagnosed easily with perianal sticky tape test and microscope visualization for eggs or worms. The treatment is mebendazole or albendazole drugs. Serious sequelae are not thought to be common, but they can include peritonitis, mesenteric abscess, intestinal perforation, enteric ulceration, enteritis, Meckel’s diverticulitis, and intussusception from ectopic worm movement. More controversial is the association of EV with appendicitis. Here, I am reporting the case of a 9-year-old child with clinical symptoms of acute appendicitis and peritonitis. A Meckel’s diverticulitis is also operatively established. Histological examination revealed EV in the lumen of the appendix and Meckel’s diverticulum. Pediatricians encounter EV in varying frequencies, but this helminth must be considered on a daily basis from doctors from all specialties in connection with a wide variety of potential, sometimes severe complications.

Demographic trends and reproductive patterns in the northern hairy-nosed wombat (Lasiorhinus krefftii) at Epping Forest National Park (Scientific), central Queensland

The critically endangered northern hairy-nosed wombat (Lasiorhinus krefftii) currently exists at only two locations in Queensland. Management, research and monitoring of the species at the main Epping Forest National Park (Scientific) population has occurred over the last four decades using a variety of tools, with the most complete dataset being provided by burrow activity monitoring over that period. Following a series of trap-based surveys in the 1980s and 1990s, wombat monitoring has employed DNA profiling of hairs collected remotely on sticky tape set at burrow entrances (since 2000), and passive infrared (PIR) cameras (since 2011). These techniques have produced a wealth of new information on the species. Using this new information, we aim to: (1) summarise the available demographic data and present new estimates using novel techniques for L. krefftii at Epping Forest NP; and (2) characterise reproductive patterns and their relationship with environmental factors for L. krefftii at Epping Forest NP. We find an ongoing increase in the population size at Epping Forest National Park, supported by healthy levels of reproduction despite periods of poor environmental conditions, notwithstanding the finding that cumulative monthly rainfall six months prior to sampling influenced birth rates. This trend suggests that the population will likely reach carrying capacity in the near future. It is timely to harvest the population to provide founders to a new site to establish an additional population, which will also reduce the risk of extinction and help secure the future of the species.

UJI PENINGKATAN KADAR ASAM AMINO PADA TAPE KETAN HITAM DENGAN PENAMBAHAN SARI BUAH NANAS DENGAN METODE SPEKTROFOTOMETRI SINAR TAMPAK

Amino acid levels in sticky rice tape are still relatively low, while amino acids themselves are food substances for body growth. Pineapple contains the enzyme bromelain. This enzyme is one of the protease enzymes that can hydrolyze protein, therefore it can increase amino acid levels. This study aims to determine the increase in amino acid levels in black sticky rice tape with the addition of pineapple juice and to determine the effect of adding pineapple juice to amino acid levels in black sticky rice tape. In the process of making black sticky rice tape, 25 ml 50 ml of pineapple juice was added per 500 grams each, while one treatment did not add pineapple juice as a control. Black glutinous rice that has been fermented for 2-3 days was tested for increased levels of amino acids by using visible light spectrophotometry. The sample of black glutinous tape without the addition of pineapple juice obtained an average content of 4.73%, on the sample of black glutinous tape with the addition of 25 ml of pineapple juice the average content obtained was 6.50%, and the sample of black sticky rice tape with the addition of 50 ml pineapple juice the average level obtained was 7.76% and gave the effect of increasing amino acid levels on black sticky rice tape.

Utilization of White Glutinous Rice Fermentation as A Coagulant of Natural Rubber Latex

Clumping is one of the important stages in the processing of latex. This stage is the first step to produce a coagulum. The purpose of this study was to determine the potential of white sticky water tape as a latex coagulant and determine the effect of white sticky water tape on the speed of clumping, color, pH, texture, levels of latex dry rubber. Tests were carried out in 4 treatments, namely R0: 1 ml of 10% formic acid solution added to 100 ml of latex; R1: 1 ml of water tape is added in 100 ml of latex; R2: 5 ml of water tape is added in 100 ml of latex; R3: Water tape as much as 10 ml was added to 100 ml of latex Then the latex parameters were observed including clumping speed, pH, texture, color and levels of dry rubber (KKK). The results of this study indicate that the administration of white sticky tape water does not reduce the pH of the latex to the isoelectric point 4.7. Nevertheless latex clumping still occurs. This is thought to be due to the alcohol content in the white sticky water tape. Based on observations, the R2 treatment is the best treatment that produces a slippery and hard coagulant texture similar to the R0 (formic acid) treatment. Whereas the latex texture in R1 and R3 treatments is softer. The addition of white sticky tape water coagulant produces latex color to milky white while formic acid produces white-yellowish color. The R2 treatment had an average KKK 41.63% lower than using formic acid, which was R0 45.96%. Although the white sticky tape water coagulant has not been able to meet the KKK quality standards of 20%.

Sampling, extraction and incidence of redberry mites (Acalitus essigi) on blackberries in Australia.

'Redberry disease' on blackberries is hypothesised to be caused by the redberry mite (RBM), Acalitus essigi (Hassan), and results in uneven ripening of blackberry drupelets, which become bright red, hard and inedible. This damage has been reported to cause significant crop losses in commercial blackberry production in most regions where commercial blackberries are grown. However, RBM are difficult to detect and manage due to their tiny body size. In this study, a new 'shake and wash' extraction method has been developed, enabling faster, more accurate mite detection and quantification. The 'shake and wash' method extracted significantly more RBM and predatory mites (Phytoseiidae) than the previously recommended 'sticky tape' method, where mite extraction using this technique was increased by 53 and 60%, respectively. RBM counts were then made from the fruit of wild and commercial blackberry cultivars. Significantly higher RBM populations were isolated in cultivars 'BL454' (mean = 12.1 per fruit) and 'Chester' (mean = 2.6 per fruit) from several sites indicating potential RBM susceptibility in these cultivars. The highest levels of disease incidence and RBM numbers were observed on wild blackberry fruit. The redberry disease incidence increased from 13.5 to 44.9% as the mean population of RBM increased on wild fruit. Further methods were developed to extract mites from winter buds on canes. RBM numbers were lower in the fruit compared to winter buds. RBM detection is best achieved in winter buds rather than fruit and may be an important tool for RBM detection and subsequent management in the cropping season.

Genetic monitoring of southern hairy-nosed wombats over two decades reveals that individuals can live for at least 18 years in the same warrens

Survival and growth rates are important demographic parameters to understand for long-term management of populations. Eighteen years have elapsed since non-invasive genetic methods were used to identify southern hairy-nosed wombats (Lasiorhinus latifrons), and determine space use and relatedness at Brookfield Conservation Park, South Australia. Because the species is long-lived (>30 years) and genetic methods can identify all or most wombats that use an area, it is possible to determine whether population size or warren use have changed and if any individuals are still alive. To this end, in April 2017 we collected hair from wombats from the same warrens as the earlier study using sticky tape suspended across burrows. We subjected DNA from selected hairs to 10 microsatellite loci and a Y-linked sex marker, and identified 76 wombats. Five wombats were detected 16–18 years before, and four of them were found in warrens that they had used previously. The number of tapes hit, wombats detected, and warrens used were greater than in April 2001 and similar to September 2001. This study illustrates that non-invasive sampling methods can be used to track free-ranging individuals in continuous habitat across decades, despite rapidly evolving genetic technology that can strand older datasets.

Unvulcanized Rubber Tape Made from Natural Rubber and Synthetic Polyisoprene Modified with Rosin as a Tackifier

This presented work was to study mechanical and tack properties of unvulcanized rubber tapes made from STR 20 and IR 2200 with various amount of carbon black and rosin as reinforcing agent and tackifier, respectively. Mixing process of solid rubbers and all chemicals was carried out by two roll mill machine. All rubber compounds were subjected to increasing the stickiness by aging under hot air at 150°C for 3 hours. From the experiment, green strength of the sticky rubber tape mixed with carbon black and rosin showed higher than that of the commercial rubber tape. The formulation exhibited the highest tensile stress at 400% strain is STR 20 mixed with 15 and 5 phr of carbon black and rosin, respectively. Mooney viscosity of the rubber tape made from STR 20 and IR 2200 was also reduced with the higher content of rosin. Although Mooney viscosity of the adhesive rubber tape normally decreased after heating under hot air, its tack property investigeted by rolling ball test on the surface predominantly became increased. Moreover, Mooney viscosity of the rubber tape made from IR 2200 would be remarkably enhanced by blending with only 20% of STR 20.