scholarly journals Storage of Habanero (D. rotundata) Yam

1969 ◽  
Vol 65 (1) ◽  
pp. 50-57
Author(s):  
Edelmiro J. Rodríguez ◽  
Orlando Parsi-Ros ◽  
Miguel A. González
Keyword(s):  
Relative Humidity ◽  
Sensory Evaluation ◽  
The Other ◽  
Ambient Conditions ◽  
Dioscorea Rotundata ◽  
Better Than

Yams (Dioscorea rotundata), variety Habanero, of three harvests gathered at 30-day intervals August, September and October were stored under ambient conditions (21° to 32°C and 60 to 90% relative humidity). The yams were sensory evaluated and weighed every 15 days. For sensory evaluation the yams were cut into two equal transversal portions, and in general, the bottom cuttings were found better than the top cuttings. Yams of the first harvest kept better in storage than those of the second and third harvests. All yams sprouted at about the same time. Around 50% of them sprouted between February and March, while around 90% had sprouted between March and April. All yams of the first harvest sprouted by the end of 7 1/2 months in storage while all of the second and third harvests had sprouted by the end of 6 months. Yams of the first harvest tended to lose less weight than those of the other two harvests.

scholarly journals Study On Photovoltaic Modules On Greenhouse Roof For Energy And Strawberry Production

2019 ◽  
Vol 118 ◽  
pp. 03049
Author(s):  
Yilian Tang ◽  
Ming Li ◽  
Xun Ma
Keyword(s):  
Power Generation ◽  
Relative Humidity ◽  
The Other ◽  
Soluble Solids ◽  
Active Radiation ◽  
Photovoltaic Modules ◽  
Pv Modules ◽  
Roof Area ◽  
Microclimate Conditions ◽  
Better Than

The aim of this study was to investigate the effect of PV modules mounted on top of a greenhouse, on the growth of strawberries and microclimate conditions as well as to estimate the generated energy. In this study, two greenhouses with the same volume were established. One greenhouse was equipped with the opaque photovoltaic (OPV) modules which accounted for 25.9% of the roof area, and the other was equipped with the semi-transparent photovoltaic (STPV) modules which accounted for 20% of the roof area. The maximum annual power generation of OPV and STPV modules was 880 and 388 kWh with 30° tilt angle, respectively, by simulating different tilt angles. The temperature under the OPV and STPV modules was 2.9 and 1.1 °C lower than the unshaded part in the greenhouses, respectively, at noon in clear weather, and had little effect on relative humidity. The photosynthetically active radiation (PAR) under OPV and STPV modules was reduced by 43.5% and 31.7%, respectively, under the PE film greenhouse. The contents of soluble solids in strawberries in OPV and STPV greenhouses were 16.4 and 15.7 mg/g respectively, which were higher than those in unshaded samples. The quality and yield of the strawberry samples under the shade of OPV were better than those of the STPV shade.

Survival of human rhinovirus type 14 dried onto nonporous inanimate surfaces: effect of relative humidity and suspending medium

1987 ◽  
Vol 33 (9) ◽  
pp. 802-806 ◽  
Author(s):  
Syed A. Sattar ◽  
Yasmin G. Karim ◽  
V. Susan Springthorpe ◽  
C. M. Johnson-Lussenburg
Keyword(s):  
Stainless Steel ◽  
Relative Humidity ◽  
The Other ◽  
Human Rhinovirus ◽  
Nasal Discharge ◽  
Virus Infectivity ◽  
Ambient Conditions ◽  
Environmental Surfaces ◽  
Tryptose Phosphate Broth ◽  
Laminar Flow Cabinet

To study the survival of human rhinovirus 14 on environmental surfaces, each stainless steel disk (1 cm in diameter) was contaminated with 10 μL (about 105 plaque-forming units) of the virus suspended in either 1χ tryptose phosphate broth (TPB), 5 mg/mL of bovine mucin in normal saline, or undiluted human nasal discharge. The inoculum was dried in a laminar flow cabinet for 1 h under ambient conditions. The disks were then placed in a glass chamber (20 ± 1 °C) with the relative humidity at either low (20 ± 5%), medium (50 ± 5%), or high (80 ± 5%) level. At appropriate intervals, the disk to be tested was placed in 1 mL of tryptose phosphate broth and the eluate titrated in A-5 HeLa cells. When the virus was suspended in either tryptose phosphate broth, mucin, or the nasal discharge and subjected to initial drying, there was a 3.0 ± 1.0, 82.0 ± 6.7, and 89.0 ± 3.0% loss in virus infectivity, respectively. The half-life of the TPB-suspended virus was about 14 h at the high relative humidity as compared with < 2 h at the other two relative humidity levels. The half-lives for the mucin-suspended virus at the high, medium, and low relative humidity were 1.42, 0.55, and 0.24 h, respectively; the corresponding values for the nasal discharge suspended virus being 0.17, 0.25, and 0.09 h.

over a period of 1-3 hours. Dust samples were collected by drawing the air through a filter at the rate of 1.71/min. The filter pore size was 0.8 um. The dust contents of the air were higher when peat was used than when the other litters were used (5). Table I: Dust contents of air during use of different litters. Fixed measuring point. litter dust content of air standard no. of mg/m3 of air deviation measurements peat alone 1.24 0.65 11 peat and straw 0.53 0.29 6 straw alone 0.10 0.20 4 straw and sawdust 0.24 0.28 4 sawdust alone 0.13 0.23 3 all farms 0.67 0.66 28 Variance analysis showed the diffemces between the groups to be highly significant F(4,23) = 7.43, p< 0.001. According to the t-tests, there was a significant difference between peat alone and all the other litters, and also between straw and straw and peat combined. 6.2. NH3 CONTENT OF AIR --------------- 3 The differences found in the NH content of the ocwshed air during the use of the different litters were not as clear as in the case of dust contents. The contents measured were generally very lew. On farms using peat, the aimonia content of the at the tying-stall at milking height was 2.1 ppm, whereas on the other farms it averaged 3.2 ppm. The corresponding ammonia contents during manure removal were 3.5 ppm for peat and 4.0 ppm on the other farms (5). The aimonia content of the air was determined using a Drager detector tube, which is not very accurate, particularly at low concentrations. In theory the acidic nature of of peat suggests it should bind armonia far better than the other litters. Hcwever, the results obtained indicate that the use of peat freshens up the cowshed air only if the manure removal and urine separation systems are working efficiently. On the basis of a sensory evaluation, the air in cowsheds using peat was slightly fresher than that in the other ccwsheds. The same result was obtained in the farm interviews. This study revealed no obstacles to the use of peat as cowshed litter. The quality of the milk and the health of the animals are affected more by the general standards of hygiene than the type of

1986 ◽  
pp. 200-200
Keyword(s):  
Pore Size ◽  
Sensory Evaluation ◽  
The Other ◽  
Measuring Point ◽  
Low Concentrations ◽  
Significant Difference ◽  
Urine Separation ◽  
Acidic Nature ◽  
Better Than

scholarly journals Experimental Verification of Yam (Dioscorea rotundata) Drying with Solar Adsorption Drying

2019 ◽  
Vol 9 (18) ◽  
pp. 3927
Author(s):  
Emmanuel Amankwah ◽  
Gloria Kyere ◽  
Herbert Kyeremateng ◽  
Anton van Boxtel
Keyword(s):  
Vitamin C ◽  
Silica Gel ◽  
Experimental Verification ◽  
Cycle Time ◽  
Driving Force ◽  
The Other ◽  
Drying Methods ◽  
Solar Drying ◽  
Dioscorea Rotundata ◽  
Better Than

This work evaluates the yam (Dioscorea rotundata) drying performance of solar adsorption drying (SAD) compared to solar drying (SD) and open sun drying (OSD). The evaluation concerns the drying cycle for batches of yam, the effect on vitamin C, color and composition. As SAD can be applied during the night, by using air dehumidified by passing through a bed of silica gel, the cycle time for drying batches of yam can be reduced over 20–25% compared to SD and halved compared to OSD. SAD is thereby most effective during the first nights of drying when the driving force is the highest. Composition was not affected by drying methods but did affect vitamin C content. Vitamin C retention is not significant different for SD and SAD, but with a slight preference for SD. For three yam cultivars (‘Pona’, ‘Lilii’ and ‘Dente’), ‘Lilii’ dried fastest and ‘Dente’ drying slowest. SAD maintained 16 the whitish color of yam better than the other drying methods.

Closing the GAP—A 5Å Scanning Microscope

1969 ◽  
Vol 27 ◽  
pp. 6-7
Author(s):  
A. V. Crewe
Keyword(s):  
Normal Form ◽  
The Other ◽  
Resolving Power ◽  
Scanning Microscope ◽  
Conventional Microscope ◽  
Other Hand ◽  
Closing The Gap ◽  
Thermal Sources ◽  
Better Than ◽  
Transmission Microscope

We have become accustomed to differentiating between the scanning microscope and the conventional transmission microscope according to the resolving power which the two instruments offer. The conventional microscope is capable of a point resolution of a few angstroms and line resolutions of periodic objects of about 1Å. On the other hand, the scanning microscope, in its normal form, is not ordinarily capable of a point resolution better than 100Å. Upon examining reasons for the 100Å limitation, it becomes clear that this is based more on tradition than reason, and in particular, it is a condition imposed upon the microscope by adherence to thermal sources of electrons.

MUNDANE MIRACLES IN AWADH. ENCOUNTERS WITH THE REVEALED AND THE HIDDEN

2020 ◽  
pp. 130-140
Author(s):  
Maxim B. Demchenko ◽  
Keyword(s):  
The Other ◽  
Local People ◽  
Natural Phenomena ◽  
Mughal Empire ◽  
The Public ◽  
British Raj ◽  
The Subject ◽  
Other World ◽  
Better Than

The sphere of the unknown, supernatural and miraculous is one of the most popular subjects for everyday discussions in Ayodhya – the last of the provinces of the Mughal Empire, which entered the British Raj in 1859, and in the distant past – the space of many legendary and mythological events. Mostly they concern encounters with inhabitants of the “other world” – spirits, ghosts, jinns as well as miraculous healings following magic rituals or meetings with the so-called saints of different religions (Hindu sadhus, Sufi dervishes),with incomprehensible and frightening natural phenomena. According to the author’s observations ideas of the unknown in Avadh are codified and structured in Avadh better than in other parts of India. Local people can clearly define if they witness a bhut or a jinn and whether the disease is caused by some witchcraft or other reasons. Perhaps that is due to the presence in the holy town of a persistent tradition of katha, the public presentation of plots from the Ramayana epic in both the narrative and poetic as well as performative forms. But are the events and phenomena in question a miracle for the Avadhvasis, residents of Ayodhya and its environs, or are they so commonplace that they do not surprise or fascinate? That exactly is the subject of the essay, written on the basis of materials collected by the author in Ayodhya during the period of 2010 – 2019. The author would like to express his appreciation to Mr. Alok Sharma (Faizabad) for his advice and cooperation.

Temperature Effects during Endodormancy Induction on Subsequent Anthesis and Growth of Peach Trees

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 452c-452 ◽  
Author(s):  
Schuyler D. Seeley ◽  
Raymundo Rojas-Martinez ◽  
James Frisby
Keyword(s):  
Temperature Effects ◽  
Shoot Length ◽  
The Other ◽  
Nighttime Temperatures ◽  
Peach Trees ◽  
Better Than

Mature peach trees in pots were treated with nighttime temperatures of –3, 6, 12, and 18 °C for 16 h and a daytime temperature of 20 °C for 8 h until the leaves abscised in the colder treatments. The trees were then chilled at 6 °C for 40 to 70 days. Trees were removed from chilling at 40, 50, 60, and 70 days and placed in a 20 °C greenhouse under increasing daylength, spring conditions. Anthesis was faster and shoot length increased with longer chilling treatments. Trees exposed to –3 °C pretreatment flowered and grew best with 40 days of chilling. However, they did not flower faster or grow better than the other treatments with longer chilling times. There was no difference in flowering or growth between the 6 and 12 °C pretreatments. The 18 °C pretreatment resulted in slower flowering and very little growth after 40 and 50 days of chilling, but growth was comparable to other treatments after 70 days of chilling.

Nglyc: A Random Forest Method for Prediction of N-Glycosylation Sites in Eukaryotic Protein Sequence

2020 ◽  
Vol 27 (3) ◽  
pp. 178-186 ◽  
Author(s):  
Ganesan Pugalenthi ◽  
Varadharaju Nithya ◽  
Kuo-Chen Chou ◽  
Govindaraju Archunan
Keyword(s):  
Random Forest ◽  
Protein Sequence ◽  
Glycosylation Site ◽  
Computational Method ◽  
The Other ◽  
Eukaryotic Protein ◽  
Random Forest Method ◽  
Glycosylation Sites ◽  
Human And Mouse ◽  
Better Than

Background: N-Glycosylation is one of the most important post-translational mechanisms in eukaryotes. N-glycosylation predominantly occurs in N-X-[S/T] sequon where X is any amino acid other than proline. However, not all N-X-[S/T] sequons in proteins are glycosylated. Therefore, accurate prediction of N-glycosylation sites is essential to understand Nglycosylation mechanism. Objective: In this article, our motivation is to develop a computational method to predict Nglycosylation sites in eukaryotic protein sequences. Methods: In this article, we report a random forest method, Nglyc, to predict N-glycosylation site from protein sequence, using 315 sequence features. The method was trained using a dataset of 600 N-glycosylation sites and 600 non-glycosylation sites and tested on the dataset containing 295 Nglycosylation sites and 253 non-glycosylation sites. Nglyc prediction was compared with NetNGlyc, EnsembleGly and GPP methods. Further, the performance of Nglyc was evaluated using human and mouse N-glycosylation sites. Results: Nglyc method achieved an overall training accuracy of 0.8033 with all 315 features. Performance comparison with NetNGlyc, EnsembleGly and GPP methods shows that Nglyc performs better than the other methods with high sensitivity and specificity rate. Conclusion: Our method achieved an overall accuracy of 0.8248 with 0.8305 sensitivity and 0.8182 specificity. Comparison study shows that our method performs better than the other methods. Applicability and success of our method was further evaluated using human and mouse N-glycosylation sites. Nglyc method is freely available at https://github.com/bioinformaticsML/ Ngly.

pLoc_bal-mEuk: Predict Subcellular Localization of Eukaryotic Proteins by General PseAAC and Quasi-balancing Training Dataset

2019 ◽  
Vol 15 (5) ◽  
pp. 472-485 ◽  
Author(s):  
Kuo-Chen Chou ◽  
Xiang Cheng ◽  
Xuan Xiao
Keyword(s):  
Drug Development ◽  
Subcellular Localization ◽  
Basic Research ◽  
The Other ◽  
Training Dataset ◽  
Sequence Information ◽  
Eukaryotic Proteins ◽  
Validation Tests ◽  
User Friendly ◽  
Better Than

<P>Background/Objective: Information of protein subcellular localization is crucially important for both basic research and drug development. With the explosive growth of protein sequences discovered in the post-genomic age, it is highly demanded to develop powerful bioinformatics tools for timely and effectively identifying their subcellular localization purely based on the sequence information alone. Recently, a predictor called “pLoc-mEuk” was developed for identifying the subcellular localization of eukaryotic proteins. Its performance is overwhelmingly better than that of the other predictors for the same purpose, particularly in dealing with multi-label systems where many proteins, called “multiplex proteins”, may simultaneously occur in two or more subcellular locations. Although it is indeed a very powerful predictor, more efforts are definitely needed to further improve it. This is because pLoc-mEuk was trained by an extremely skewed dataset where some subset was about 200 times the size of the other subsets. Accordingly, it cannot avoid the biased consequence caused by such an uneven training dataset. </P><P> Methods: To alleviate such bias, we have developed a new predictor called pLoc_bal-mEuk by quasi-balancing the training dataset. Cross-validation tests on exactly the same experimentconfirmed dataset have indicated that the proposed new predictor is remarkably superior to pLocmEuk, the existing state-of-the-art predictor in identifying the subcellular localization of eukaryotic proteins. It has not escaped our notice that the quasi-balancing treatment can also be used to deal with many other biological systems. </P><P> Results: To maximize the convenience for most experimental scientists, a user-friendly web-server for the new predictor has been established at http://www.jci-bioinfo.cn/pLoc_bal-mEuk/. </P><P> Conclusion: It is anticipated that the pLoc_bal-Euk predictor holds very high potential to become a useful high throughput tool in identifying the subcellular localization of eukaryotic proteins, particularly for finding multi-target drugs that is currently a very hot trend trend in drug development.</P>

scholarly journals Chance or Necessity—The Fungi Co−Occurring with Formica polyctena Ants

Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 204
Author(s):  
Igor Siedlecki ◽  
Michał Gorczak ◽  
Alicja Okrasińska ◽  
Marta Wrzosek
Keyword(s):  
Molecular Identification ◽  
High Frequency ◽  
Its Rdna ◽  
The Other ◽  
Formica Polyctena ◽  
Ant Nests ◽  
Mutualistic Fungi ◽  
The Tropics ◽  
High Diversity ◽  
Better Than

Studies on carton nesting ants and domatia−dwelling ants have shown that ant–fungi interactions may be much more common and widespread than previously thought. Until now, studies focused predominantly on parasitic and mutualistic fungi–ant interactions occurring mostly in the tropics, neglecting less−obvious interactions involving the fungi common in ants’ surroundings in temperate climates. In our study, we characterized the mycobiota of the surroundings of Formica polyctena ants by identifying nearly 600 fungal colonies that were isolated externally from the bodies of F. polyctena workers. The ants were collected from mounds found in northern and central Poland. Isolated fungi were assigned to 20 genera via molecular identification (ITS rDNA barcoding). Among these, Penicillium strains were the most frequent, belonging to eight different taxonomic sections. Other common and widespread members of Eurotiales, such as Aspergillus spp., were isolated very rarely. In our study, we managed to characterize the genera of fungi commonly present on F. polyctena workers. Our results suggest that Penicillium, Trichoderma, Mucor, Schwanniomyces and Entomortierella are commonly present in F. polyctena surroundings. Additionally, the high diversity and high frequency of Penicillium colonies isolated from ants in this study suggest that representatives of this genus may be adapted to survive in ant nests environment better than the other fungal groups, or that they are preferentially sustained by the insects in nests.

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