bluuebunny/crossref_metadata_2025 huggingface dataset:
Diurnal and Seasonal Effects of Environment on Plant Water Relations and Fruit Diameter of Citrus1
Authors: Elfving D. C. , Kaufmann M. R.
Published: August 2022

Leaf water potential of ‘Valencia’ orange trees was influenced by soil water availability, soil temp, and vapor pressure deficit (VPD) of the atmosphere. Low soil water availability prevented full nighttime recovery from water stress. Soil temp below 15°C decreased root permeability for water absorption and contributed to low daytime water potentials (high water stress), but at night when transpiration was minimal, complete recovery occurred. VPD effects on leaf water potential were also most noticeable during the day. Stage II fruits exhibited a recurring diurnal size change during daylight hr. This reversible shrinkage was correlated with simultaneous changes in fruit and leaf water potential and fruit diffusion resistance. However, the irreversible nighttime growth rate could not be correlated with day or night water potentials or air temp, or with night VPD. While differences between fruit and leaf water potentials occurred, no evidence presented here or elsewhere permits an unequivocal statement that transpiring fruits can behave as a midday reservoir of water for leaves.
Conditions for Opening Cut Chrysanthemum Flower Buds1
Authors: Kofranek Anton M. , Halevy Abraham H.
Published: August 2022

Cut flower buds of chrysanthemums were opened in sucrose solutions from 0 to 40%. Concentrations of 2% for ‘Albatross ’, 5% for ‘Fred Shoesmith’, 20% for ‘Streamer’ and 30% for ‘Bright Golden Anne’ were optimal under room conditions of 100 ft-c fluorescent light (24 hr); relative humidity, 40 to 70%; temp 19 to 21°C. Sucrose was better than glucose; manitol was toxic. Silver nitrate (25 ppm) and citric acid (75 ppm) resulted in best quality flowers without leaf injury; 200 ppm 8-hydroxyquinoline citrate caused leaf damage. Buds larger than 5.0 cm diam and 10 g fr wt were best for opening in sucrose solutions. Flowers opened in solution in 7-9 days and were better quality and had greater longevity than those opened on the plant in the greenhouse.
Effects of Water Stress, Gibberellic Acid and 2-Chloroethyltrimethylammoniumchloride (CCC) on Flower Differentiation in ‘Eureka’ Lemon Trees1,2
Authors: Nir I. , Goren R. , Leshem B.
Published: August 2022

Attempts were made to identify the stage of flower differentiation of subterminal buds under water stress conditions. Anatomical and morphological studies established that flower differentiation occurs during the stress period and that the generative bud formed does not undergo flower development until water is supplied. Gibberellic acid applied under normal irrigation conditions inhibited summer flower formation even when supplied after the first stages of flower bud differentiation, and stimulated vegetative growth of either 1 or 2 dormant axillary meristems. In contrast, 2-chloroethyltrimethylammoniumchloride induced flower formation when applied by the end of August to irrigated trees. Treatments with gibberellic acid under water stress conditions prevented flower formation but were inactive when applied after the renewal of irrigation and beginning of anthesis.
Effect of Fungicides on Nut Quality and Control of Pecan Scab ‘Premature Defoliation’
Authors: Worley R. E. , Littrell R. H.
Published: August 2022

Fungicides, dodine, fentin hydroxide, captafol, and benomyl, gave adequate control of pecan scab caused by Fusicladium effusum Wint., using a 3-week spray schedule beginning April 22 and concluding August 5. Massive applications of dodine and captafol at bud break to replace the first 3 scheduled applications failed to give equivalent control of scab.

Leaf scorch symptoms are described. Control was excellent using any of the fungicides tested. Leaves of checks were severely damaged by scorch. It is suggested that 1 or more fungi are associated with the cause(s) of this malady. Fungicides increased quality by increasing percentage of edible kernel, reducing shuck damage, and increasing wt of nuts.
Medium Temperatures Effect on Geranium and Poinsettia Root Initiation and Elongation1
Authors: Carpenter W. J. , Hansen E. N. , Carlson W. H.
Published: August 2022

Root promotion and root inhibition were measured for geranium and poinsettia cuttings during and after treatment at medium temp of 5 to 35°C at 5°C increments for 1 to 5 days. Optimum root initiation and elongation temp from 1 day of treatment were 15 to 30°C with reduced root initiation after 5 and 35°C and inhibition of root elongation after 5, 10 and 35°C treatments. Medium treatments for 3 or 5 days at 25 and 30°C increased root initiation and elongation which continued at accelerated rates during a 5 day period following treatment. Medium temp 5, 10, 15, and 35°C for 3 or 5 days reduced root initiation and elongation during treatment, and inhibition continued after treatments of 5, 10, and 35°C. Roots became brown for both species during 35°C treatment, while roots at 25°C and below remained white. After treatment root tip vascular and cortical cells varied in size but were anatomically similar. Distances from the root tips to the 1st xylem element were largest at 25°C allowing more cortical cells in the meristematic region.
Nitrogen and Potassium Fertilization Effects on Yield, Fruit Quality, and Leaf Composition of ‘Stanley’ Prunes
Authors: Kwong S. S.
Published: August 2022

The increase of the N level in leaves and fruits of 10-yr-old ‘Stanley’ prunes was found significant after soil application of 793.8 g N alone or combined with 1020.6 g K. Potassium levels of leaf and fruit began to show significant increases the third year after K fertilization. Ammonium nitrate favors accumulation of Mn in leaves. Higher rates of N alone or combined with K significantly increased yields. Increasing leaf K did not affect fruit yield unless leaf N was also increased. Nitrogen had no effect on titratable acids and soluble solids of the fruit. High K increased the titratable acids in fruits in light crop years. The results of the present study suggest that leaf K should be above 2.0% and leaf N should be above 2.1% for optimum production of ‘Stanley’ prunes.
Fatty Acid and Amino Acid Composition of the Seeds of Three Cultivars of the Tomato, Lycopersicon esculentum L.1
Authors: Rymal K. S. , Smit C. J. B. , Nakayama T. O. M.
Published: August 2022

Fatty acids of the seed oils of ‘Chico Grande’, ‘Rutgers’, and ‘Golden Jubilee’ tomatoes, determined by gas liquid chromatography (GLC), showed no significant quantitative or qualitative differences among cultivars. The major fatty acids were linoleic, 58.0%; oleic, 19.9%; palmitic, 15.6% and stearic, 4.5%. Seven minor acids included linolenic, 1.8%; and trace amounts of myristic, myristoleic, palmitoleic, margaric, arachidic, and a 17 C acid not identified.

Sixteen amino acids of the solvent extracted seed meals, determined by ion exchange chromatography, showed significant quantitative differences among the 3 cultivars in glutamic acid, glycine, tyrosine, arginine, and lysine. ‘Golden Jubilee’ seed meal protein contained 10.22% lysine compared to 9.23% for ‘Rutgers’, 9.04% for ‘Chico Grande’ and 7.63% for commercial soybean meal. The tomato seed meals were significantly different from the soybean meal in 10 of 16 amino acids. Soybean meal was higher in threonine, serine, and histidine than any of the tomato seed meals and higher than one of them in leucine and isoleucine. All the tomato seed meals and soybean meal were low in methionine.
Environmental Factors Affecting Flowering in Pelargonium domesticum Cultivars1
Authors: Hackett Wesley P. , Kister John
Published: August 2022

Low temperature is the most important environmental factor promoting flower initiation in Pelargonium domesticum Bailey, but 1 of 3 cultivars tested had little or no requirement for low temperature and flowered even when grown at greenhouse night temperatures of 21°C (70°F). High light flux can partially substitute for the low temperature requirement for flowering. At a constant temperature of 15.5°C, long days increased the total number of inflorescences and their rate of development as compared to short day control plants.
Effect of Succinic Acid-2,2-dimethylhydrazide on Mushroom o-Diphenol Oxidase1
Authors: Murr Dennis P. , Morris Leonard L.
Published: August 2022

Postharvest discoloration of cultivated mushrooms (Agaricus.bisporus [Lange] Sing., ‘tan strain’) was significantly retarded by treatment with succinic acid-2,2-dimethylhydrazide (SADH). The optimum SADH concn was 100 ppm. The effect, however, lasted no longer than 3 days after which time all SADH treatments discolored at rates equal to or greater than controls. The decrease in discoloration was correlated with a decrease in o-diphenol oxidase (o-DPO) activity. Protease activity was higher in SADH treated mushrooms suggesting that reduction in browning was due to degradation of o-DPO rather than direct inhibition of o-DPO by SADH. In vitro SADH competes with proline for quinones produced by enzymatic or non-enzymatic oxidation of diphenols. It is proposed that in vivo SADH exerts a dual effect in reducing mushroom discoloration: first SADH induces degradation of o-DPO through an increase in proteolytic activity, and second it binds to quinones thereby removing intermediates which lead to pigment formation.
Influence of Shearing Height at Flowering on Gladiolus Corm and Cormel Production1,2
Authors: Wilfret G. J. , Raulston J. C.
Published: August 2022

Leaf area required for development of flowering-size corms following simulated mowing of gladiolus spikes was determined and mowing height was compared to leaf area retained. Plants were sheared from 12 to 40 cm above the top of the beds in 4 cm increments. Shearing plants 12, 24, or 36 cm above the soil level left 5, 18, and 38% of the leaf area, respectively, compared to intact plants. Mowing at these heights reduced corm weight 76, 65, and 39%, total cormel weight 92, 62, and 22%, and number of corms ≥3.8 cm in diameter 96, 76, and 33%, respectively. Minimum shearing height for development of usable daughter corms for subsequent flower production was 28 cm.
Interaction of Low Temperature Storage and Maturity on Quality of ‘Early Italian’ Prunes1
Authors: Proebsting E. L. , Carter G. H. , Mills H. H.
Published: August 2022

Ripening of ‘Early Italian’ prunes, harvested at maturity suitable for fresh shipment, was enhanced by several days exposure to low temperature (1°C). Cold treated prunes developed more color, less acidity and were softer than prunes ripened immediately at 21°. No changes in these characteristics occurred during the cold period. Canned whole fruit and juice reflected these changes and were readily detected by a taste panel.
Inheritance of Grit Content in Fruits of Pyrus communis L.1
Authors: Thompson J. M. , van der Zwet T. , Oitto W. A.
Published: August 2022

We rated 86 pear cultivars and selections for their grit content on an inverted scale of 9 to 1. Of these, 64% were rated 6, which we consider to be commercially acceptable, or higher. More than 2000 seedlings from 186 crosses with these cultivars and selections as parents were grouped on the basis of their parental mean grit rating. In each case where the parental mean was 5.0 or higher, the progeny mean was lower than the parental mean. Conversely, in each case where the parental mean was 4.5 or lower, the progeny mean was higher than the parental mean. Where the parental mean was 7.5 or higher, 84% of the seedlings had grit ratings of 6 or higher. Conversely, where the parental mean was 4.0 or lower, only 26% of the seedlings had grit ratings of 6 or higher. We can thus predict the percentage of seedlings in a progeny that can be expected to have a commercially acceptable grit rating. Grit cell development appears to be inherited quantitatively at a minimum of 4 loci. The genes appear to be additive in action rather than dominant.
Ethephon [1,2-14C(2-chloroethyl)phosphonic acid] in Peach Fruits. I. Penetration and Persistance1
Authors: Lavee S. , Martin George C.
Published: August 2022

Penetration of ethephon into peach fruits was determined using l,2-14C(2-chloroethyl)-phosphonic acid (l4C-CEPA). Most of the activity accumulated in the fruit exocarp, with only minute amounts in the mesocarp. No notable lateral translocation was apparent. The results suggest that active degradation of the compound takes place in the young fruit while in the older peach fruits the rate of l4C-CEPA degradation takes place at a slower rate.
Gibberellic Acid Compatibility Studies on Citrus1
Authors: Coggins C. W. , Henning G. L. , Atkin D. R.
Published: August 2022

Gibberellic acid (GA3) applied to navel orange [Citrus sinensis (L.) Osbeck] trees in the whitewash spray mixture [15 lb. Ca(OH)2 + 2 lb. CUSO4 · 5H2O + 3 lb. ZnSO4 · H2O/100 gal - pH 12.6], commonly used in the San Joaquin Valley of California, had no effect on rind resistance to puncture or on rind color. Whitewash applied as a separate spray 6 hours prior to, or 1 day after, GA3 yielded full effect of GA3. The full GA3 effect was obtained also when it was applied as a constituent of a neutralized Cu, Mn, Zn mixture. Effectiveness of GA3 was reduced in the laboratory when it was applied in suspensions containing as little as 0.15 g/l (0.125 lb./100 gal) of Ca(OH)2 and no reduction occurred when smaller amounts of Ca(OH)2 were used to produce alkaline water with pH values of 8.0 through 11.0. We propose that the compatibility of GA3 with dry deposits of whitewash was due to conversion of Ca(OH)2 to CaCO3 and that the lack of compatibility with more highly alkaline suspensions of Ca(OH)2 was due to the conversion of GA3 to the 1 → 3-lactone.
Comparison of Three Methods of Measuring Winter Hardiness of Internodal Stem Sections of Forsythia intermedia ‘Lynwood’1
Authors: Blazich Frank A. , Evert Dean R. , Bee David E.
Published: August 2022

The electrolytic, visual, and electrical impedance methods for estimating freezing injury were highly associated. The electrolytic method was more closely associated with the visual method and better separated the effects of freezing temperatures than did the electrical impedance method. The electrical impedance method yielded results in the shortest time. The electrical impedance and visual methods evaluated freezing injury to woody internodal stem sections without the need for unfrozen controls.
Iron-Induced Manganese Deficiency in ‘Sungold’ Peach and its Effects on Fruit Composition and Quality1
Authors: Rogers Ewell , Johnson Gestur , Johnson Duane
Published: August 2022

Ammonium sulfate at 1620 g plus Na ferric ethylenediamine di-(o-hydroxyphenylacetate) at 56.7, 113.4, and 226.8 g significantly depressed the concentration of Mn in ‘Sungold’ peach leaves. Most of the N treatments increased N content in the leaves. The Mn:Fe ratio was reduced from 1:2.58 in non-fertilized leaves to 1:6.86 in leaves of trees treated with 226.8 g FeNa2-EDDHA. Regression coefficients indicate that there was a closer linear relation of fruit composition with N applied to the soil as (NH4)2SO4 than with Fe induced Mn deficiency. There were no significant linear trends in percent total solids, percent soluble solids, total tannins, flesh color, or flavor of fruit from trees treated with Fe chelate or FeSO4 plus (NH4)2SO4. The treatments had no significant effect on percent total acidity, polyphenolase, rate of browning, firmness, raggedness or stringiness of the fruit. Also, the treatments had no significant effect on P, K, or Zn content of the peach leaves and trunk, or shoot growth or fruit size and yield.
Host Preference of Greenhouse Whitefly: Effect of Poinsettia Cultivars1
Authors: Fischer Steven J. , Shanks James B.
Published: August 2022

Sixty-eight poinsettia cultivars (Euphorbia pulcherrima Willd.) were exposed to a population of greenhouse whitefly (Trialeurodes vaporariorum Westw.) for 9 weeks. Evaluation was based on 6 degrees of infestation by immature stages of whitefly on the bracts and upper and lower foliage. The upper foliage showed the heaviest infestation and was considered to be the best indicator of relative susceptibility. White bracts were more heavily infested than red bracts, while pink bracts were intermediate. A wide range in degree of whitefly infestation was found among poinsettia cultivars. Certain cultivars tested for 2 years showed appreciable resistance to infestation (‘U.S.D.A. 68-82-1’, ‘U.S.D.A. 68-160-2’, ‘Annette Hegg Maxi’, ‘Red Baron’, ‘Rudolph’).
Studies on Lettuce Seed Quality: IV. Individually Measured Embryo and Seed Characteristics in Relation to Continuous Plant Growth (Vigor) Under Controlled Conditions1
Authors: Soffer Hillel , Smith O. E.
Published: August 2022

Physical characteristics measured individually for each lettuce (Lactuca sativa L.) seed and its embryo were significantly correlated with seedling and plant growth (vigor) up to a certain stage, possibly heading, after which the correlations diminished. Embryo physical measurements, although slightly better correlated with subsequent vigor than seed (achene) physical measurements, were highly correlated with those of the whole seed.

Of the 5 physical measurements studied, all but length were found to be associated with early vigor. Thorough statistical analyses place seed and embryo physical characteristics in a consistent and significant order in determining vigor: weight > thickness > density (as measured by an air column) > width > length.
Stem Girdling of Chrysanthemum Cultivars by Chemical Pinching Agents
Authors: Gogue G. Jay , Rasmussen H. Paul
Published: August 2022

Chrysanthemum morifolium (Ramat.)3 cultivars showed a range of stem girdling responses when treated with the chemical pinching agents, a commercial pinching agent (OSO)4 and methyl decanoate (MD). Differential responses were attributed to the number of trichomes per unit area of the stem; resistant cultivars had more trichomes than susceptible cultivars. The stomatal number per unit of stem area was constant for all cultivars. Stem diameter was not a significant factor in the susceptibility of cultivars to girdling damage. Resistance was eliminated by damaging or removing the trichomes of a resistant cultivar. Similar treatment of a susceptible cultivar did not increase susceptibility. Susceptible cultivars absorbed more 14C MD than resistant ones. Injury was positively correlated with 14C MD uptake within cultivars. Methyl decanote did not enter the stem through epidermal cells adjacent to trichomes or the trichome itself, but rather through epidermal cells not in proximity of the trichomes.
Effect of Rates of Poststorage Warming on Ripening of ‘Bartlett’ Pears, Pyrus communis L.1
Authors: Maxie E. C. , Parsons R. A. , Mitchell F. G. , Mayer G. , Snyder R. G.
Published: August 2022

The wide variability in ripeness frequent in ‘Bartlett’ pears at processing can be reduced by prompt, rapid, and uniform warming. Fruits with an initial core temperature of 0.25°C were uniformly warmed to 20° ± 2°C in 30 minutes when air at a rate of 2079 cc/sec/Kg (2 cfm/lb) of product was pulled over them by a modified forced-air tunnel bin warmer operating in a room with an air temperature of 45°C. These fruits ripened in precisely 4 days, with firmness differing between individual fruits by no more than 1.13 Kg (2.5 lb). Conversely, pears warmed at slower rates simulating current cannery procedures varied by as much as a week in time to ripeness.
The Influence of Processing and Maturity on Volatile Components in Bush Snap Beans, Phaseolus vulgaris L.1
Authors: Toya D. K. , Frazier W. A. , Morgan M. E. , Baggett J. R.
Published: August 2022

Concentration of 17 volatile components in canned, frozen, and fresh green bean pods was determined by gas-liquid chromatography. Only l-octen-3-ol differed quantitatively with cultivar. Almost all volatile components detected in frozen pods were greatly reduced or lost as compared to those in fresh pods. In canned pods most of the “higher boiling” compounds were found to decrease while some “lower boiling” compounds increased considerably, l-octen-3-ol, a significant component of bean flavor, increased with time after thawing of the frozen samples, while very little change was observed in the concentration of other compounds. In fresh green beans the concentration of l-octen-3-ol was highest early in pod growth and decreased rapidly through the 21st day after anthesis and attainment of maximum marketable pod size.
Effect of Wind Erosion on Production of Snap Beans and Peas1,2
Authors: Bubenzer G. D. , Weis G. G.
Published: August 2022

Wind and the abrasive action of sand particles had a detrimental effect on the production of snap beans, Phaseolus vulgaris L., and peas, Pisum sativum L. Plants were subjected to winds of 15.5 m/sec for a duration of 20 min. Snap bean yields were reduced approximately 8% due to wind during the seedling stage and 14% when flowering plants were treated. An average reduction of 16% was observed for peas exposed to the same wind conditions, but losses for peas were not significantly influenced by the growth stage at treatment.

Yields of snap beans and peas were inversely related to the soil loss when plants were exposed to wind at the seedling stage. Losses in production from treatment at the latter stages of growth were attributed to the loss of buds and blossoms due to the wind.
Variations in Efficiency of Nitrogen Utilization in Tomatoes (Lycopersicon esculentum Mill.) Grown Under Nitrogen Stress1
Authors: O’Sullivan John , Gabelman W. H. , Gerloff G. C.
Published: August 2022

The concept of genetic control of efficiency of nutrient utilization in tomatoes was investigated within naturally occurring variation among 146 strains. Under severe N stress (35 mg of N per plant) in nutrient culture solutions efficient strains produced as much as 45% more dry weight than inefficient strains. Efficiency in N utilization (NER) was defined as the mg of dry weight produced for each mg of N absorbed by a plant. Differences in N uptake and translocation by the root systems did not explain variations in efficiency. At equal total N concentrations in leaves, efficient plants produced larger lower leaves and maintained more normal tissues. High NER values for efficient strains also were associated with greater stem weights and lower total N concentrations. Inheritance studies showed that dominance and additive X additive gene effects made the major contributions to variation in both plant dry weight and N efficiency.
An Insight into the Role of Periodontitis as a Potential Risk Factor for Development of Erectile Dysfunction
Authors:   Ministry of Health of Malaysia, Federal Government Administrative Centre, 62590 Putrajaya, Malaysia, Mohd Sood Zuhrah , Nik-Azis Nik Madihah ,   Department of Restorative Dentistry, Faculty of Dentistry, Universiti Kebangsaan Malaysia, 50300 Kuala Lumpur, Malaysia, Baharin Badiah ,   Department of Restorative Dentistry, Faculty of Dentistry, Universiti Kebangsaan Malaysia, 50300 Kuala Lumpur, Malaysia, Md Zainuddin Zulkifli ,   Urology Unit, Department of Surgery, Universiti Kebangsaan Malaysia Medical Centre, 56000 Cheras, Kuala Lumpur, Malaysia, Razali Masfueh ,   Department of Restorative Dentistry, Faculty of Dentistry, Universiti Kebangsaan Malaysia, 50300 Kuala Lumpur, Malaysia, Hussaini Haizal Mohd ,   Department of Oral Diagnostic and Surgical Sciences, Faculty of Dentistry, University of Otago, Dunedin 9016, New Zealand
Published: August 2022

Erectile dysfunction (ED) is one of the common sexual disorders affecting many men worldwide. Owing to shared common risk factors, periodontitis is related to ED. However, the prevalence of periodontitis among Malaysian patients with ED is currently unknown. This study aimed to investigate the prevalence of periodontitis in patients with ED in Malaysia and the factors associated with this relationship. Forty-one subjects aged 27–59 years old were recruited to participate in this study. The International Index of Erectile Function (IIEF-5) was used in assessing the presence of ED. Their periodontal health was assessed through comprehensive periodontal examination including plaque index, bleeding on probing and clinical attachment level. The subjects were categorised according to the severity of their periodontal health and ED. A questionnaire on general health and oral habits was administered. The prevalence of periodontitis (95.5%) among subjects with ED was significantly higher than those without ED (52.6%). Subjects with ED had the worst periodontal health, as indicated by the mean clinical attachment loss and percentage of sites with bleeding on probing. No differences in oral hygiene habits were found between subjects with and without ED. The prevalence of periodontal disease among Malaysian patients with ED was high. Periodontitis was positively associated with the severity of ED, supporting a dose-dependent association between the two diseases. Oral hygiene habits were not significantly related to any periodontitis parameters nor were significantly different between subjects with and without ED.
Ultrasound-guided lung lesion index as a predictor of treatment outcomes: cohort study of 388 patients with coronavirus infection
Authors: Lakhin Roman E. , Zhirnova E. A. , Shchegolev A. V. , Zheleznyak I. S. , Menkov I. A. , Chugunov A. A.
Published: August 2022

INTRODUCTION. Currently there are a lot of articles of lung ultrasound (LUS) in COVID-19 both in the diagnosis and in the prognosis of the disease. OBJECTIVE. Evaluation of the relationship between the ultrasound-guided lung lesion index (UIL) with the volume of lung involvement determined by computed tomography (CT) and disease outcomes in patients with COVID-19. MATERIALS AND METHODS. A prospective observational cohort clinical study included 388 patients aged 18–75 years; diagnosed with COVID-19 pneumonia or suspected COVID-19. Lung ultrasound was performed according to the 16-zone “Russian Protocol” within 24 hours after CT scan of the chest organs. RESULTS. The median lung lesion volume on CT was 55 (35; 74) % and UIL was 46 (28; 60) points. UIL had a strong direct correlation of 0.873 (95% CI 0.842; 0.897, p < 0.01) with the change in the volume of lung involvement determined by CT and the inverse with the SpO2/FiO2 index –0.850 (95% CI 0.827; 0.871, p < 0.01). Mortality was 56 patients (14.4 %) (p = 0.018). The optimal cut-off point for ROC analysis in predicting mortality was 55 points and had a sensitivity of 97.6 % and a specificity of 73.9 % with an area under the curve of 0.896 (95% CI 0.861; 0.931). Kaplan–Meier analysis on the entire data set (n = 388) demonstrated a survival rate of 97.6 % in the group with a UIL score less than 55 points and 62 % in the group with a UIL score more than 55 points. Differences between groups were statistically significant (Log Rank test p < 0.001; Breslow test p < 0.001). As a result, multivariate Cox regression analysis, using the stepwise exclusion method, only UIL remained a significant predictor of adverse outcome (p < 0.01). CONCLUSIONS. UIL determined by 16-zone “Russian protocol” correlated with severity of respiratory failure and volume of lung injury and was a predictor of adverse prognosis of disease outcome.
Adoption of Eco-friendly Practices by Hotels in Dehradun District, Uttarakhand
Authors: Semwal Sonam Kapoor , Dani Rakesh
Published: August 2022

Tourism industry is one of the leading industries, bringing in millions of tourists nationally, internationally through the years, has created an increasing amount of stress on the environment. This problem is very common in the areas where tourism runs into the limits of natural resources. Thus, looking into the scenario today Eco-friendly Practices are growing rapidly to harmonize tourism & environmental sustainability. The Hospitality Industry has realized their business activities impact on the environment & has taken actions to reduce those impacts. Hotel that incorporates these Eco-friendly Practices are more environment friendly with the efficient use of energy, water & materials while providing quality services. Eco Friendly Hotels conserve & preserve the resources by saving water, reducing energy use, & reducing solid waste. As Dehradun District is popular & most preferred tourist destination, there is a concern of heavy negative impact on environment from the tourism related activities. Thus, there is a need to promote the Eco-friendly Practices in the Hospitality Business which saves money, the aim of being an Eco-friendly Hotel is to reduce the negative impacts on the environment both by reducing the consumption of resources & by changing the practices so that the waste produced can be used or recycled. The objective of this chapter is to find that how many Hotels of Dehradun District are adopting & showing a very positive interest in incorporating the concept of Eco-friendly Practices in their operations.
The COVID-19 Pandemic's Impact on Consumer Behavior in the Tourism Industry
Authors: Tawade Purva , Dhar Sangeeta
Published: August 2022

Coronavirus illness (COVID-19) has retained a significant influence on global economy. Although pandemic has impacted numerous sectors around the world, the tourism business, which includes transportation, education and catering has been particularly hard struck. To prevent the spread of the corona, lockdown and market closure were conducted on regular basis by the Indian government and several state governments, which had detrimental influence on the Indian hotel industry which saw a sharp drop when travel restriction had tightened. The never-ending epidemic have harmed people's earnings and resulted in an increase in unemployment throughout the country, influencing purchasing habits. The main objective of this chapter is to see how covid-19 affected consumer behaviour in the Indian hotel business. According to the report, most guests were pleased with hotel services such as mobile check-in and check-out, cashless transactions, electronic signature, keyless room entry, and strengthened standard operating procedures (SOPs) for room cleaning during the epidemic, among other things. Third wave of the epidemic is in the process of calming down. However, learning from the experience some of the useful practices should be continued and measures should be initiated to bring back the industry to normal.
Antioxidant and Antitumoral Potential of Terpenes and Phenylpropanoids against MCF7, A549 and HT144 cancer cell lines
Authors: Souza Rafaela Vieira , Ionta Marisa , Borges Cleber , Ferreira Vanuzia Rodrigues Fernandes , Caetano Alex Rodrigues Silva , Campolina Gabriela Aguiar , Horvath Renato de Oliveira , Nelson David Lee , Cardoso Maria das Graças
Published: August 2022

Essential oils are a complex mixture of terpenes and phenylpropanoids that have several biological activities, including antioxidant and antitumoral activities. The present study sought to evaluate the antioxidant potential of monoterpenes and phenylpropanoids by different methods (stabilization of free radicals, inhibition of lipid peroxidation, and complexation of metals). In addition, the antitumor potentials of these compounds were evaluated on human estrogen-positive breast cancer (MCF-7), non-small cell lung cancer (A-549), and melanoma cancer (HT-144) cell lines. Cisplatin (6 µg mL-1) was used as a positive control. The cell viability was studied and the quantification of DNA was performed. The antioxidant activity results were analyzed by linear regression and antitumor activity were analyzed via analysis of variance and the Dunnett test. A greater antioxidant activity was observed for the phenolic compounds carvacrol, thymol and eugenol than for the standards (BHT, mannitol and ascorbic acid) by the methods tested. A dose-response effect was observed for the less active compounds, revealing the influence of the concentration of the constituents. Carvacrol displayed an important cytotoxic activity against the estrogen-positive MCF-7 cell line, and citral was more active against A549 cells and HT144 melanoma cells. The positive control Cisplatin showed low cell viability over the A549 and HT44 cells, and showed high cell viability over the MCF-7 cell. The antitumor activity of citral observed against HT144 cells is associated with its ability to promote the cell cycle at the G1/S transition, at least in part.
Outros na escola e a escola dos Outros:
Authors: Ramalho Bárbara , Alvarez Leite Lúcia Helena
Published: August 2022

A partir da análise dos dados de uma pesquisa de doutorado (Autor, ano) e em diálogo com a imprescindível obra Torto Arado de Itamar Vieira Júnior (2019), pretendemos neste texto analisar as contestações ou fissuras à colonialidade da educação provocadas pelas resistentes e insurgentes presenças dos sujeitos feitos Outros no contexto escolar. Trata-se de uma reflexão subsidiada pelas perspectivas anticoloniais que nos possibilitam denunciar o histórico e contemporâneo alinhamento entre educação formal e projeto colonial, mas também anunciar a necessidade e a viabilidade da descolonização da escola. Sob essa perspectiva, no presente texto, os depoimentos dos sujeitos da pesquisa que, em alguma medida, se encontram com a experiência escolar de uma das protagonistas de Torto Arado (Vieira-Júnior, 2019), Belonísia, nos levam a concluir que, sob uma perspectiva emancipatória, faz-se imperativo e urgente que a educação escolar se descolonize e, assim, se transforme a partir do reconhecimento dos sujeitos feitos Outros, de seus saberes e culturas.
Competencias emocionales en docentes de bachilleratos con y sin deserción escolar
Authors:   Universidad Iberoamericana Puebla, Bulás Montoro María de las Mercedes , Ramírez Camacho Ana Lorena ,   Instituto Nacional de Astrofísica, Óptica y Electrónica, Campos Rivera Nora Hemi ,   Universidad Iberoamericana Puebla
Published: August 2022

Con el objetivo de explorar las expresiones verbales de las competencias emocionales de las que disponen los docentes de educación media superior de escuelas con y sin abandono escolar en Puebla. Participaron n=11 docentes (4 hombres y 7 mujeres) de 31 a 58 años, (Medad= 42.81, D.E.= 9.7 años). Se diseñó una guía de entrevista semiestructurada con 30 preguntas. Se solicitaron los permisos a las autoridades correspondientes, se tomaron en cuenta las consideraciones éticas. Con las entrevistas transcritas se realizó el análisis de contenido, se realizaron categorizaciones y compararon resultados por el tipo de escuela. Se encontró un número mayor de expresiones verbales de competencias emocionales en los docentes en la escuela sin deserción escolar comparada con la escuela con deserción escolar. La alegría, acciones analíticas, optimismo, responsabilidad, respeto, solidaridad, relaciones familiares cercanas y asertividad fueron las expresiones emocionales más recurrentes en la escuela sin deserción escolar, lo que supondría una propuesta de perfil emocional del docente con competencias emocionales óptimas para un buen proceso de enseñanza­-aprendizaje.
Riqueza e similaridade das aves endêmicas da mata atlântica entre bacias hidrográficas paranaenses
Authors: Pires de Oliveira Lucas , Cavarzere Vagner
Published: August 2022

O conhecimento ornitológico sobre bacias hidrográficas brasileiras é escasso. Há carência de estudos comparativos entre as comunidades de aves e as bacias. O objetivo do presente trabalho foi realizar o levantamento de espécies de aves no estado do Paraná com base em literatura e em dados da ciência cidadã, além de comparar as comunidades de espécies endêmicas da mata atlântica entre as bacias hidrográficas paranaenses. Foram obtidos registros de 148 espécies endêmicas, em 260 municípios paranaenses, com base em revisão bibliográfica e plataformas de ciência cidadã. As bacias mais próximas do litoral possuem mais riquezas, tanto total quanto de espécies endêmicas. A similaridade das comunidades de aves endêmicas entre bacias indicou maiores índices entre bacias contíguas do primeiro e do segundo planaltos, mas também sugeriu menor dissimilaridade entre bacias separadas geograficamente. Sugere-se que tal padrão pode resultar de influências dos tipos de solo e de vegetação e/ou de viés amostral.
instrumentation of dental implants: a literature review
Authors: Fabiana de Almeida Curylofo  , Lígia Araújo Barbosa  , Ana Lúcia Roselino  , Laiza Maria Grassi Fais  , Luís Geraldo Vaz
Published: August 2022

The aim of this study was to review the literature on the systems used to decontaminate the implant’s surface. Different instruments have been proposed, but there is no agreement in the literature about which methods would be more efficient with no damage to the implant surface. It was reported the use of plastic, carbon fiber, stainless-steel and titanium curettes and also the use of other systems such as ultrasonic points with different tips, rubber cups and air abrasion. Literature review: In most of the studies, the injury caused on the titanium surface at the time of instrumentation was examined. In others, the cell adhesion on the titanium dental implants following instrumentation of the implant surface was observed. Moreover, to enhance cleaning around implants, ultrasonic systems were recently tested. Conclusion: Metal instruments can lead to major damage to implant surface, therefore, they are not indicated for decontamination of dental implants surfaces. Furthermore, non-metallic instruments, such as plastic curettes, rubber cups, air abrasion and some ultrasonic systems seem to be better choices to remove calculus and plaque of the sub- and supra-gingival peri-implant area. It is noteworthy that more studies evaluating the effects of these systems are required to establish best practices to be used in the treatment of patients with dental implants.
Endodontic treatment for necrotic immature permanent teeth using MTA and calcium hydroxide. A retrospective study
Authors: Claudio Maniglia-Ferreira  , Fabio de Almeida Gomes  , Nadine Luísa Soares de Lima Guimarães  , Marcelo de Moraes Vitoriano  , Tatyana Albuquerque Ximenes  , Bruno Carvalho de Sousa  , Roberto Alves dos Santos
Published: August 2022

Endodontic treatment of young permanent teeth with incomplete root formation and necrotic pulp has been a challenge for the dentist. It is necessary to induce the formation of apical barrier (apical plug), enabling the complete root canal filling. Objective: This retrospective clinical study compared the protocols for treatment of teeth with incomplete root formation, using calcium hydroxide (CH) or mineral trioxide aggregate (MTA). Material and methods: 28 patients with incomplete root formation have undergone root canal treatments in the period from 2000 to 2009 were selected. The procedures for cleaning, shaping and intracanal medication (CH paste) were performed in a standardized manner. In 13 patients, after using the CH paste (14 days), apical plugs with MTA were made. In the remaining 15 teeth monthly exchanges with CH paste were executed until it was observed radiographically the formation of the apical barrier. In all cases the canals were filled conventionally with gutta-percha and sealer. Initially, follow-ups were made on a quarterly and semiannually at the end of first year. Results: All apical lesions showed apical healing between 4 and 13 months after starting treatment. There was not noted the continuing process of root formation. Conclusion: It was concluded that the treatment of teeth with incomplete root formation and necrotic pulp with the use of MTA as apical plug has the same clinical results compared with the use of CH, with the advantage of less clinical time.
Gubernacular cord and canal – does these anatomical structures play a role in dental eruption?
Authors: Danielly Cunha Araújo Ferreira  , Ana Caroline Fumes  , Alberto Consolaro  , Paulo Nelson-Filho  , Alexandra Mussolino de Queiroz  , Andiara De Rossi
Published: August 2022

The gubernacular cord is an original structure of the dental lamina, which undergoes apoptosis and their remnants were organized in the form of epithelial islets and strands that lined up, leaving the reduced epithelium of the enamel organ towards the oral mucosa. This structure is located within the gubernacular canal, which can be identified as a small opening in the alveolar region of the lingual or palatal surface of the deciduous teeth. Objective:To conceptualize, identify and assess the possible contribution of the gubernacular cord and canal in the process of tooth eruption. Literature review: A review of literature on Pubmed, Medline and Bireme databases, without datum restriction. Little amount of scientific articles were found, and only 14 studies were identified. The authors addressed the matter succinctly, with little information about these structures, which can play an important role in the process of tooth eruption. Conclusion: The gubernacular cord and canal are anatomical structures located in the alveolar bone crest of the maxilla or mandible, behind the deciduous teeth. These structures appear to exhibit the ability to aid the eruption path of the permanent teeth successors. Despite being a relevant subject, few professionals know this structure and its possible role in the process of tooth eruption.
Pleomorphic adenoma in the oral mucosa of a young adult: a case report
Authors: Juliana Andrade Cardoso  , Carla Martins Ferreira  , Mariana Moura de Jesus Fernandes Guerra1  , Gleicy Gabriela Vitória Spinola Carneiro Falcão  , Lívia Souza Pugliese  , Jener Gonçalves de Farias
Published: August 2022

The pleomorphic adenoma (PA) is the most common benign neoplasia in salivary glands, affecting most commonly the parotid gland of females between the 4th and 6th decades of life. PA can less commonly affect the minor salivary glands; in these cases the main site of attack is the palate. Objective: This study aims are twofold: to report a clinical case of PA involving minor salivary glands in the oral mucosa, treated conservatively; and to emphasize the importance of pathologic examination in defining the correct diagnosis. Case report: A 22 year-old melanoderm male patient sought emergency room due to asymptomatic swelling in the right side of the face. After comprehensive clinical examination, it was decided to perform an incisional biopsy to confirm the diagnosis and further treatment. After confirming the diagnosis of pleomorphic adenoma, we opted for enucleation of the lesion to avoid possible complications such as scar retraction and salivary fistula. Conclusion: It is very important that the dentist early diagnoses the neoplasia to perform more conservative treatments and achieve a better prognosis for the patient, always following-up the case for a period from five to ten years to ensure the non-recurrence of this neoplasia.
Use of electronic apex locator in the impossibility of radiographic visualization of the root apex: report of two cases
Authors: Ricardo Machado  , Luiz Fernando Tomazinho  , Ângela Mayara Azedo Stel  , Emmanuel João Nogueira Leal Silva  , Luiz Pascoal Vansan
Published: August 2022

Electronic apex locators have been widely used for foraminal identification and for working length determination. The establishment of a correct apical limit is essential for a good prognosis in cases of pulp vitality or pulp infection. Objective and Case reports: The aim of the study is to report two cases where the use of electronic apex locators was crucial due to the inability to visualize the root apex due to a post-surgical retaining plate (case 1) and during orthodontic treatment with a maxillary expander (case 2). Conclusion: In this light we could confirm the effectiveness of these devices for the determination of the working length when it is impossible to perform it by radiographic techniques.
Information and communication technologies in dental education: students’ perceptions
Authors: Alessandra Martins Ferreira Warmling  , Cláudio José Amante  , Ana Lúcia Schaefer Ferreira de Mello
Published: August 2022

Among teaching and learning methods, those using Information and Communication Technologies as new dental education possibilities are based on the student’s knowledge construction and the development of new capabilities such as innovation, creativity, autonomy and communication. Objective: To demonstrate the use of information and communication technologies (ICTs) as support tools for teaching-learning process in Dentistry by using an application that manages dental caries determinants. Material and methods: An application was used by students from a Dentistry Undergraduate Program from a public university in southern Brazil. Data collection comprised a qualitative study with Dentistry undergraduates, through focus group technique. Data analysis was performed according to Bardin’s content analysis. Results and Discussion: Results are presented in categories: 1. Use of ICTs in Dentistry teaching; 2. Students’ perceptions on the application; 3. The application as a teaching-learning tool in Dentistry. Data analysis showed advantages of using ICTs in dental teaching as key tools and process facilitators. The application is a decision-taking and action-planning tool, guiding students’ clinical reasoning towards recognition of local reality. Conclusion: Relevance and potential use of ICTs in Dentistry teaching was detected, making them auxiliary tools in students’ education in the face of their need to adapt to the current context of technological advances and the rapid expansion of scientific knowledge.
Knowledge of Human Genome Project among Dentistry undergraduates
Authors: Daniela Peressoni Vieira  , Thaisa Cezária Triches  , Marcos Ximenes Filho  , Ana Paula Silveira Caldeira de Andrada Beltrame  , Leila Posenato Garcia  , Mabel Mariela Rodríguez Cordeiro
Published: August 2022

The Human Genome Project (HGP) has allowed for advances in diagnosis and prevention of diseases. Objective: The aim of this study was to investigate the knowledge of undergraduates from the Federal University of Santa Catarina, regarding HGP and its applicability. Material and methods: Thirty-one students were interviewed by using a questionnaire with open questions, followed by qualitative and quantitative analysis through answers’ grouping. Results: Only 4.5% did not know HGP, while most of them (83%) demonstrated knowledge gained from the media. Only 21% cited the undergraduate program as a source of information, 56% recognized advances in disease prevention and 81% reported applicability in Dentistry. 97% students would give blood samples for research, 28% reported concern about misuse of this information, while 31% did not report any disadvantage. Conclusion: It may be concluded that the students have some knowledge on HGP. However, it is not widely discussed during course, because the media was the main source of information.
Evaluation of three root canal filling techniques through digital radiograph
Authors: Caroline Solda  , Volmir João Fornari  , Mateus Silveira Hartmann  , Flávia Baldissarelli  , Fabiana Corralo dos Santos  , José Roberto Vanni
Published: August 2022

Endodontic obturation consists of root canal filling by antiseptic or inert materials that promote a three-dimensional sealing and stimulate the repair process without interfering with it. Different obturation techniques and materials have been proposed to meet this requirement. Objective: To compare the root canal filling promoted by lateral condensation technique, Tagger's hybrid technique and McSpadden technique by assessing the filling quality through digital radiograph. Material and methods: A total of 45 extracted single-rooted human teeth were used and randomly divided into three experimental groups. After instrumentation, the teeth were filled by lateral condensation (n=15), Hybrid Tagger (n=15), and McSpadden techniques (n=15). Then, digital radiographs were taken with projected increased 10 times, at mesial-distal and buccolingual directions. Results: Visually, few empty spaces were detected at the three root thirds of teeth filled by different techniques. However, statistical analysis (Kruskal-Wallis) found no differences among the different groups, neither among the different thirds nor between both incidences evaluated. Conclusion: It was concluded that the three obturation techniques exhibited similar behavior in relation to the sealing of the root canal through digital radiograph.