100,555 research outputs found
Joshua Davis: Author of Spare Parts
No full textCitation: K-State First (2016). Joshua Davis: Author of Spare Parts [Flier]. Manhattan, Kansas: K-State First.Flyer advertising Joshua Davis's author talk at Kansas State University
Steven Johnson Author Talk Poster
No full textK-State Book NetworkA poster advertising an author talk by Steven Johnson at Kansas State University on September 3, 2014. Steven Johnson's book "The Ghost Map" was the 2014-2015 common book
Klasifikasi Kematangan Jeruk Lemon Menggunakan Metode K-Nearest Neighboard
No full textAbstrak— Klasifikasi jeruk lemon adalah disiplin bidang ilmu yang menggambarkan identifikasi jeruk berdasarkan sifatnya. Beberapa sifat dari jeruk lemon, diantaranya kulit terluar lemon kaya akan kelenjar minyak, kematangan ditandai dengan warna kulit kuning terang. Jeruk lemon yang berwarna hijau gelap, menandakan jeruk lemon tersebut belum matang dan kandungan air di dalamnya akan lebih sedikit. Pada penelitian ini kematangan diklasifikasikan menggunakan metode K-Nearest Neighbor. Hasilnya adalah klasifikasi kematangan dengan kadar air 90% jarak terdekat rata-rata sebesar 10,86 dengan akurasi 85%, sedangkan pada pengujian jeruk lemon dengan kematangan 80% diperoleh jarak terdekat 7,3 dengan akurasi 81%. Pada pengujian dengan kematngan dengan kadar air 70 persen diperoleh jarak rata-rata terdekat 19,4 dan akurasi 86,11%. Untuk jeruk lemon dengan kategori tidak matang dengan kadar air 50% diperoleh jarak terdekat sebesar 19,46 dan akurasi 88,9 % , sedangkan pada pengujian jeruk lemon mentah dengan kadar air 40% diperoleh jarak terdekat 16,19 dan akurasi 88,73 dan untuk pengujian jeruk lemon tidak matang dengan kadar air 30% diperoleh klasifikasi dengan jarak terdekat rata-rata sebesar 1,85 dan akuras 84,13%. Hal ini menunjukkan bahwa sistem klasifikasi dengan menggunakan metode K-NN cukup baik, indikatornya adalah jarak terdekat rata-rata yang dihasilkan antara citra uji dan citra training bernilai antara 1,85 sampai 19,46 dan akurasinya antara 81% sampai88,89 %.Kata kunci— Akurasi, Jeruk lemon, Klasifikasi, kedekatan, tetangga, uji.Abstract— Classification of lemon is the discipline of science that describes the identification of citrus by its character. Some characterof lemon, lemon outer shell is rich in oil glands, maturity is marked by bright yellowskin color, lemon which is dark green, indicates the immature lemon and water content in it will be less. In this study maturity are classified using K-Nearest Neighbor method. The result is a classification of maturity with 90% moisture content has shortest distance average of 10.86 with an accuracy of 85%, while in the testing of lemon with a maturity of 80% obtained the nearest distance of 7.3 with an accuracy of 81%. In maturity testing with a water content of 70 percent derived average approximate distance of 19.4 and 86.11% accuracy. For the lemon with the category of immature by moisture content of 50% obtained the nearest distance at 19.46 and accuracy of 88.9%, while in the testing of raw lemon with a moisture content of 40% obtained the nearest distance 16.19 and accuracy of 88.73 and for testing of immature lemon with a water content of 30% obtained classifications with the average nearest distance of 1.85 and accuracy of 84.13%. This indicates that the classification system using K-NN was very good, the indicator is the average nearest distance between the tested images and training image between 1.85 to 19.46 valuable and accuracy between 81% to 88.89%.Keywords— Accuracy, Lemon, classification,nearets, neighbors, test.</jats:p
Anna Lemon
No full textAnna Lemon is the daughter of John K. and Anna S. Lemon of Ioka, Duchesne County. She marrie Ercel Johnson
A Preliminary Evaluation of the Antibacterial Activity of Lemon Fruit Juice, Mondia whitei Ethanolic Extract, and Their Combination Against Streptococcus mutans
No full textMarkarius Katuromunda,1 Kenneth Ssekatawa,2,3 Silivano Niwagaba1 1Department of Pharmacognosy, Kampala International University, Western Campus, Bushenyi, Uganda; 2Department of Science, Technical and Vocational Education, Makerere University, Kampala, Uganda; 3Africa Centre of Excellence in Materials Product Development and Nanotechnology (MAPRONANO ACE), Makerere University, Kampala, UgandaCorrespondence: Kenneth Ssekatawa, Email [email protected]: Dental caries has gained momentum as one of the main public healthcare concerns worldwide. Although the occurrence of dental caries in Uganda is on the rise, little attention has been paid to promoting oral healthcare in the country. Thus, this study aimed to evaluate the citrus lemon extracts, and Mondia whitei root bark ethanolic extract as candidate alternative therapeutic agents for streptococcus mutans, the causative agent of dental caries.Methods: In this study, the citrus lemon juice, pulp citrus lemon juice, and Mondia whitei ethanolic extract were screened for phytochemicals. Furthermore, the anti-Streptococcus mutans activity of the citrus lemon juice, citrus lemon pulp juice, and Mondia whitei ethanolic extract was determined by the agar well diffusion method while the minimum inhibitory concentration and minimum bactericidal concentration were determined by serial broth dilution.Results: Phytochemical screening revealed the presence of alkaloids, flavonoids, terpenoids, and tannins in the Mondia whitei ethanolic extract and citrus lemon juices, while glycosides were only detected in lemon extracts. The zones of inhibition of Mondia whitei ethanolic extract, citrus lemon juice, citrus lemon pulp juice, and the cocktail were 13.67 ± 0.33 mm, 18.67 ± 0.33 mm, 18.33 ± 0.67 mm, and 18.00 ± 0.58 mm, respectively. The citrus lemon juice and citrus lemon pulp juice exhibited significantly lower MIC of 0.195 mg/mL, and 0.391mg/mL, respectively. The efficacy of the extract/juices increased with an increase in the concentration.Conclusion: The study findings revealed that Mondia whitei ethanolic extract and lemon extracts have potent antibacterial activity against streptococcus mutans, the main causative agent of dental caries; thus, can be further explored to formulate a herbal concoction for the prevention and treatment of oral cavity infections in resources-limited low-income communities.Keywords: oral healthcare, dental caries, citrus lemon juice: Mondia whitei ethanolic extrac
Higher Biofilm Formation by Multi-Drug Resistant K-pneumoniae and K-rhinoscleromatis Strains and Effects of Lemon and Ginger Essential Oils on Biofilm Formation
No full textBackground: Klebsiella strains are opportunistic pathogens forming biofilms on many surfaces. Nowadays some resistance traits' acquirements via gene transfer mechanisms in biofilm environments cause an urgency to discover new substances targeting biofilm inhibition. Objective: The focus of this study is to examine different K. pneumoniae and K. rhinoscleromatis strains' clinical information and antibiotic resistance results according to their biofilm formation levels and to determine lemon and ginger essential oils' effects on biofilm formation. Methods: Biofilm formation of different Klebsiella strains and effects of ginger and lemon essential oils on biofilm formation were determined by Crystal Violet Binding assay. Results: Strong biofilm forming K. pneumoniae strains were more frequently observed to be isolated from blood sample. 80% of multi-drug resistant K. pneumoniae strains were strong biofilm forming and all multi-drug resistant K. rhinoscleromatis strains were intermediate biofilm formers. 170 mu l/ mL of lemon essential oil caused 48.3% (+/- 13.7) and 83.4% (+/- 7.2) decreases in biofilm formation amounts of strongest biofilm forming K. pneumoniae and K. rhinoscleromatis strains respectively. Conclusion: According to our results; multi-drug resistant K. pneumoniae and K. rhinoscleromatis strains form higher amount of biofilms and lemon essential oil might be used as a new anti-biofilm agent, targeting the inhibition of biofilm formation of K. pneumoniae and K. rhinoscleromatis strains
Effects of different levels of acidity of lemon juice on E. coli present on fresh spinach
No full textIntroduction: E. coli is a common microorganism found on various types of common foods such as produce, meat and even flour. If ingested into the body E. coli can cause serious abdominal issues. This study was done to see how acidity of lemon juice affects the growth of E. coli.
Purpose: The objective of this study was to investigate whether the acidity of lemon juice at two different levels destroyed E. coli on spinach. a
Methods: 100 grams of spinach was inoculated with E.coli and 100 grams was left as a negative control. For three days bags of spinach were stomached and plated on PCA, PDA and McConkey plates. The inoculated spinach was treated with lemon juice, one bag with a pH of 2 and one bag with a pH of 4. The pH of 4 lemon juice was diluted with water to reach that level. The negative control spinach was only stomached and plated on the first two days.
Results: In this experiment it was found that the lemon juice with a pH level of 2 did kill the E. coli but the pH 4 lemon juice did not. On the PCA plates there was P value of .002. This is significantly lower than .05 which showed that the numbers were significantly changed with this treatment. pH of 4 barely changed the plate count on all three medias. The P values of different days were also significant. Day three had a lower count on the McConkey plates.
Significance: This study was significant because it proved that a low acidity does kill E. coli. This may be important because often salad dressings can have a low acidity or if lemon juice was to be added to a dressing it could kill E. coli
Effectiveness of seller reputation as a solution to online lemon markets
No full textLemon markets, markets of asymmetric information in favour of sellers, cause selective market participation and exploitation of market conditions, known as adverse selection and moral hazard. To prevent both in online lemon markets that emerged with the Sharing Economy, connecting fragmented individuals to share, exchange, or sell underutilised assets, seller reputation mechanisms have been installed to signal trust.
Their impact is corroborated by the reputation effect: commercial outcome increases with seller reputation. However, the underlying assumption of rational market participants, small, heterogeneous effect sizes, and few, unclear findings on marketplace design- and product-related moderation of the reputation effect question: Is seller reputation an effective solution to the problems associated with online lemon markets?
In a twofold approach, seller reputation is studied through an observational study analysing eBay data and experimental studies using consumer behaviour in virtual marketplaces – to better understand the reputation effect, commercial effects of marketplace design and product attributes, and their moderation of the reputation effect.
On eBay, the reputation effect holds with substantial commercial impact, despite limited seller distinction given ceiling effects in reputation system design. Sniping, incentivised by marketplace design generally reduces commercial outcome. Product attributes, sealed packaging and private photos, increase commercial outcome, and reduce the reputation effect. The reputation effect is experimentally confirmed and its product-related moderation supported. On eBay, photo frequency increases commercial outcome across seller cues and prior photo exposure is experimentally linked to it, partly via trust – in line with mere exposure, a preference for familiar stimuli.
Findings suggest that seller reputation systems, though constrained by design deficiencies, effectively address problems associated with online lemon markets. While product attributes appear to complement seller reputation as trust-building signalling mechanisms, prior exposure to them may constitute an independent mechanism; jointly contributing to explain differences in observed commercial outcome
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