scholarly journals Anatomy of the leaf blades of Waldsteinia ternata (Stephan) Fritsch (Rosaceae) grown under different light conditions

2021 ◽  
Vol 7 ◽  
pp. 381-390
Author(s):  
Tatiana N. Belaeva ◽  
Alina N. Butenkova
Keyword(s):  
Botanical Garden ◽  
Growth Conditions ◽  
The Sun ◽  
State University ◽  
Light Conditions ◽  
Lower Epidermis ◽  
Anatomical Structures ◽  
Nemoral Relict ◽  
Water Conditions ◽  
The Relationship

AbstractThe paper reports the results of a comparative study of the anatomical structures of the leaf blades of Waldsteinia ternata grown under different light conditions in the Siberian Botanical Garden of Tomsk State University. Waldsteinia ternata is a tertiary nemoral relict from the mountains of southern Siberia, which is found in a limited number of taiga communities due to narrow environmental tolerance to various factors. The species remains poorly studied; comprehensive studies of the anatomical features of its leaves have not been performed on the territory of Russia. Leaves of W. ternata are dorsoventral and amphistomatous with anomocytic type stomata. The plants are classified as mesophytes. The relationship between the development of the anatomical structure of leaves and light conditions was revealed. The W. ternata plants grown in the sun showed an increased number of stomata and epidermal cells, an increased thickness of the leaf and mesophyll, and an increased number of cells of the upper and lower epidermis, that is, the plants exhibited heliophytic features of plant adaptation to good light conditions. At the same time, the vascular tissues of the plants grown in the sun were less developed, which reflected their adaptation to unfavorable water conditions. A number of relative indicators, such as the stomatal index of the lower epidermis, the ratio of the palisade to spongy mesophyll, and the ratio of xylem to phloem, did not change under different growth conditions. Thus, under different light and water conditions, W. ternata acquires helioxeromorphic or sciomesomorphic features.

The Impact of Competitive Quasi-Market on Service Delivery in Benue State University, Makurdi Nigeria

GIS Business ◽  
2019 ◽  
Vol 14 (4) ◽  
pp. 85-98
Author(s):  
Idoko Peter
Keyword(s):  
Service Delivery ◽  
A Priori ◽  
Least Square ◽  
Secondary Source ◽  
State University ◽  
Ordinary Least Square ◽  
Negative Effect ◽  
The Impact ◽  
The Relationship

This research the impact of competitive quasi market on service delivery in Benue State University, Makurdi Nigeria. Both primary and secondary source of data and information were used for the study and questionnaire was used to extract information from the purposively selected respondents. The population for this study is one hundred and seventy three (173) administrative staff of Benue State University selected at random. The statistical tools employed was the classical ordinary least square (OLS) and the probability value of the estimates was used to tests hypotheses of the study. The result of the study indicates that a positive relationship exist between Competitive quasi marketing in Benue State University, Makurdi Nigeria (CQM) and Transparency in the service delivery (TRSP) and the relationship is statistically significant (p<0.05). Competitive quasi marketing (CQM) has a negative effect on Observe Competence in Benue State University, Makurdi Nigeria (OBCP) and the relationship is not statistically significant (p>0.05). Competitive quasi marketing (CQM) has a positive effect on Innovation in Benue State University, Makurdi Nigeria (INVO) and the relationship is statistically significant (p<0.05) and in line with a priori expectation. This means that a unit increases in Competitive quasi marketing (CQM) will result to a corresponding increase in innovation in Benue State University, Makurdi Nigeria (INVO) by a margin of 22.5%. It was concluded that government monopoly in the provision of certain types of services has greatly affected the quality of service experience in the institution. It was recommended among others that the stakeholders in the market has to be transparent so that the system will be productive to serve the society effectively

Yield and seed productivity of pear rootstock forms in the conditions of the steppe zone of the Southern Urals

2020 ◽  
Vol 62 ◽  
pp. 39-47
Author(s):  
A. I. Lokhova ◽  
E. Z. Savin ◽  
A. M. Rusanov ◽  
A. A. Mushinskiy
Keyword(s):  
Steppe Zone ◽  
Southern Urals ◽  
Botanical Garden ◽  
Climatic Conditions ◽  
High Yield ◽  
State University ◽  
Maximum Weight ◽  
Seed Productivity ◽  
The Southern Urals ◽  
Typical Soil

The article presents the results of studying the diversity of pear rootstock forms in terms of yield and seed productivity. The research was carried out at the experimental sites of the Orenburg Experimental Station of Horticulture and Viticulture of AllRussian Horticultural Institute for Breeding, Agrotechnology and Nursery and the Botanical Garden of the Orenburg State University in 2017-2019, in typical soil and climatic conditions of the Orenburg city. The purpose of the study is to identify pear rootstock forms characterized by high yield and stable seed productivity for use in the future as a seed rootstock. During the research, 15 pear accessions were studied; the planting scheme was 6x4 m. As a result of research, it was found that the rootstock form Temno-zelenaya is characterized by a high yield (40 kg/tree). High seed productivity of more than 6 seeds in one fruit was observed in samples: Vernaya (6.0-6.5 pcs.), SK-1, SK-3 (6.1-7.8 pcs.), SK-2 (7.0-7.5 pcs.), Chang Bai Li (7.4-7.7 pcs.), Semennaya 214 (7.5-7.8 pcs.). It was revealed that the Xiao he Bai Li variety is characterized by the maximum weight of 1000 seeds (65.2 g). Analysis of accessions by seed yield established that a consistently high yield is observed in the varieties Chang Bai Li (2.5-4.2 %), Vernaya (3.96-4.18 %) and forms SK-1 (2.0-3.25%), SK-2 (2.25-2.75 %), SK-3 (1.43-4.0 %). Pear rootstock forms Chang Bai Li, Vernaya, Semennaya 214, SK-1, SK-2, SK-3 were identifi ed, which can be recommended for production testing as seed pear rootstocks for the conditions of the steppe zone of the Southern Urals.

Anatomical and ecological and biological features of the genus Malus Mill. in training botanical garden of the Kuban State University

2019 ◽  
Vol 1 (77) ◽  
pp. 122-128
Author(s):  
Lyudmila Makarova ◽  
◽  
Svetlana Bergun ◽  
Tatyana Yanenka ◽  
Sergey Krivorotov ◽  
...  
Keyword(s):  
Botanical Garden ◽  
State University ◽  
Biological Features

scholarly journals Macronutrient Quality and All-Cause Mortality in the SUN Cohort

Nutrients ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 972
Author(s):  
Susana Santiago ◽  
Itziar Zazpe ◽  
Cesar I. Fernandez-Lazaro ◽  
Víctor de la de la O ◽  
Maira Bes-Rastrollo ◽  
...  
Keyword(s):  
Quality Index ◽  
Inverse Relationship ◽  
A Priori ◽  
The Sun ◽  
Significant Inverse Relationship ◽  
Carbohydrate Quality ◽  
All Cause Mortality ◽  
Middle Aged Adults ◽  
The Relationship

No previous study has assessed the relationship between overall macronutrient quality and all-cause mortality. We aimed to prospectively examine the association between a multidimensional macronutrient quality index (MQI) and all-cause mortality in the SUN (Seguimiento Universidad de Navarra) (University of Navarra Follow-Up) study, a Mediterranean cohort of middle-aged adults. Dietary intake information was obtained from a validated 136-item semi-quantitative food-frequency questionnaire. We calculated the MQI (categorized in quartiles) based on three quality indexes: the carbohydrate quality index (CQI), the fat quality index (FQI), and the healthy plate protein source quality index (HPPQI). Among 19,083 participants (mean age 38.4, 59.9% female), 440 deaths from all causes were observed during a median follow-up of 12.2 years (IQR, 8.3–14.9). No significant association was found between the MQI and mortality risk with multivariable-adjusted hazard ratio (HR) for the highest vs. the lowest quartile of 0.79 (95% CI, 0.59–1.06; Ptrend = 0.199). The CQI was the only component of the MQI associated with mortality showing a significant inverse relationship, with HR between extreme quartiles of 0.64 (95% CI, 0.45–0.90; Ptrend = 0.021). In this Mediterranean cohort, a new and multidimensional MQI defined a priori was not associated with all-cause mortality. Among its three sub-indexes, only the CQI showed a significant inverse relationship with the risk of all-cause mortality.

More Books - Black Cultural Mythology. By Christel N. Temple. Albany: State University of New York Press, 2020; 370 pp. $95.00 cloth, $33.95 paper, e-book available. - The Cambridge Companion to International Theatre Festivals. Edited by Ric Knowles. Cambridge: Cambridge University Press, 2020; 368 pp. $84.99 cloth, $24.99 paper, e-book available. - Contemporary European Playwrights. Edited by Maria M. Delgado, Bryce Lease, and Dan Rebellato. London: Routledge, 2020; 432 pp.; illustrations. $128.00 cloth, $34.36 paper, e-book available. - Macbeth in Harlem: Black Theater in America from the Beginning to Raisin in the Sun. By Clifford Mason. New Brunswick, NJ: Rutgers University Press, 2020; 246 pp.; illustrations. $32.95 cloth, e-book available. - Racial Immanence: Chicanx Bodies beyond Representation. By Marissa K. López. New York: New York University Press, 2019; 208 pp.; illustrations. $89.00 cloth, $28.00 paper, e-book available. - Theatermachine: Tadeusz Kantor in Context. Edited by Magda Romanska and Kathleen Cioffi. Evanston, IL: Northwestern University Press, 2020; 344 pp.; illustrations. $120.00 cloth, $34.95 paper, e-book available.

2021 ◽  
Vol 65 (3) ◽  
pp. 178-180
Author(s):  
Jim Short
Keyword(s):  
New York ◽  
New Brunswick ◽  
The Sun ◽  
State University ◽  
New York University ◽  
Black Theater ◽  
Cambridge University ◽  
Rutgers University ◽  
Northwestern University

User Preference for Fluorescent Strong Yellow-Green Pedestrian Crossing Signs

1997 ◽  
Vol 1605 (1) ◽  
pp. 17-21 ◽  
Author(s):  
Navaneet Dutt ◽  
Joseph E. Hummer ◽  
Kenneth L. Clark
Keyword(s):  
Traffic Control ◽  
Warning Signs ◽  
User Preference ◽  
State University ◽  
Light Conditions ◽  
North Carolina State University ◽  
Extensive Evaluation ◽  
Traffic Conflict ◽  
The Aesthetic ◽  
Pedestrian Crossing

Strong yellow-green (SYG) is one of the unassigned colors listed in the FHWA’s Manual on Uniform Traffic Control Devices. Fluorescent SYG is promising because it appears to be more conspicuous in low-light conditions than conventional yellow signing materials. FHWA has conducted an extensive evaluation of SYG used for signs that warn drivers of nonmotorized hazards. North Carolina State University conducted one of the largest evaluations of SYG signs. The evaluation consisted of three parts: a traffic conflict study, a laboratory study, and a survey of pedestrians and drivers. The survey assessed driver perceptions of SYG warning signs at midblock pedestrian crossings. The researchers conducted the survey at four locations, which differed in pedestrian activities and saturation of pedestrian crossing signs. The study found that respondents thought that the SYG signs were more conspicuous, induced greater alertness in road users, and had a stronger association with caution. The respondents indicated that the aesthetic impact of the signs on the surroundings was no worse than that of standard yellow signs, and they generally recommended the use of SYG signs even when they were informed that the costs may be higher. The researchers also found that increases in travel frequency through the area in which the SYG signs were installed and increases in driving through that area in poor light conditions increased a respondent’s chances for noticing the SYG signs. Women and drivers between the ages of 36 and 45 generally gave SYG signs higher ratings than did other drivers. The results of this survey are described.

scholarly journals Tests for coronal electron temperature signatures in suprathermal electron populations at 1 AU

2017 ◽  
Vol 35 (6) ◽  
pp. 1275-1291 ◽  
Author(s):  
Allan R. Macneil ◽  
Christopher J. Owen ◽  
Robert T. Wicks
Keyword(s):  
Solar Wind ◽  
Electron Temperature ◽  
Energy Content ◽  
The Sun ◽  
Particle Interactions ◽  
Core Electron ◽  
Suprathermal Electron ◽  
Electron Distributions ◽  
The Relationship ◽  
Coronal Electron

Abstract. The development of knowledge of how the coronal origin of the solar wind affects its in situ properties is one of the keys to understanding the relationship between the Sun and the heliosphere. In this paper, we analyse ACE/SWICS and WIND/3DP data spanning  > 12 years, and test properties of solar wind suprathermal electron distributions for the presence of signatures of the coronal temperature at their origin which may remain at 1 AU. In particular we re-examine a previous suggestion that these properties correlate with the oxygen charge state ratio O7+ ∕ O6+, an established proxy for coronal electron temperature. We find only a very weak but variable correlation between measures of suprathermal electron energy content and O7+ ∕ O6+. The weak nature of the correlation leads us to conclude, in contrast to earlier results, that an initial relationship with core electron temperature has the possibility to exist in the corona, but that in most cases no strong signatures remain in the suprathermal electron distributions at 1 AU. It cannot yet be confirmed whether this is due to the effects of coronal conditions on the establishment of this relationship or due to the altering of the electron distributions by processing during transport in the solar wind en route to 1 AU. Contrasting results for the halo and strahl population favours the latter interpretation. Confirmation of this will be possible using Solar Orbiter data (cruise and nominal mission phase) to test whether the weakness of the relationship persists over a range of heliocentric distances. If the correlation is found to strengthen when closer to the Sun, then this would indicate an initial relationship which is being degraded, perhaps by wave–particle interactions, en route to the observer.

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