scholarly journals Research on Relationships between the Pigment of Dunhuang Mogao Grottoes Frescoes and Ecological Microorganism

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Yiran Zhao ◽  
Yu Guo
Keyword(s):  
Chinese Culture ◽  
Color Change ◽  
Protection Measures ◽  
Biological Communities ◽  
Color Changes ◽  
Mogao Grottoes ◽  
The World ◽  
Red Lead ◽  
Main Color ◽  
And Control

Dunhuang Mogao Grottoes is one of the largest art treasures in the world. She has a large number of murals, sculptures, beautiful and vivid; There are precious Buddhist scriptures, documents, noble and elegant. Spanning more than 1,600 years, the Mogao Grottoes show the world the extensive and profound Chinese culture with a long history. But over time, the murals in the Mogao Grottoes have also changed a lot. Thousands of years of wind and rain erosion, changes in the surrounding environment, and the influence of various biological communities have caused serious color changes and fading of murals in Mogao Grottoes. To slow down the color change of Dunhuang frescoes, protection measures should be taken from the perspective of ecological microorganisms. At present, Cladosporium, Planococcus, Phoma, Chaetomium, and other strains have caused serious discoloration or discoloration of murals to a certain extent. This paper studies the main color of Dunhuang frescoes, red, and summarizes the discoloration factors and mechanism of red lead. On this level, one should try to keep the murals and control the indoor temperature. Humidity, people, and other factors slow the fading of the murals. But these are often insufficient to protect the integrity of the murals, so we have conducted a review of the literature to provide an updated overview of the available evidence on the subject.

Байгаль, экологийн сэдэвт монголын аман болон орчин үеийн яруу найргийн бүтээлүүд (= Произведения устной и современной поэзии о природе и экологии)

2020 ◽  
Vol 15 (3) ◽  
pp. 189-206
Author(s):  
Alimaa A. ◽  
◽  
Tseveendorj D. ◽  
Keyword(s):  
Historical Memory ◽  
Social Changes ◽  
Nature Protection ◽  
Protection Measures ◽  
Cry For Help ◽  
The Social ◽  
The World ◽  
Man And Nature ◽  
Freshwater Reservoir ◽  
And Control

The social priorities of literature are the tribune of environmental idiology. Today, in the Mongolian literature, the direction of ecocriticism has been established. This article makes an analysis in traditional Mongolian poetry and modern poetry on the topic of nature conservation and ecology. In Mongolian folklore praise the purity of nature and the motherland. His idol of pure nature is praise and praise. But each species has its own color. The topic of nature protection in Mongolian folklore (Orthodoxy, Magtaal-praise, Tuul-epic, du-folk songs and myth) is that a person should not control and control nature but understand and convert to nature as a living creature; means that people will have a natural relationship, a balanced and safe life. Probably, there is not a single poet of Mongolia who does not address the topic of “man and nature”. Each in its own way perceives nature, and each in its own way revealing to the reader the world of nature and himself in this world. The space of the “Mongolian spirit” created by the poet is filled with natural landscapes, people, and historical memory. His ancestors and descendants, the dead and living, are called upon to preserve this space and believing that nature and civilization can exist in equal harmony, he would like to reconcile them among themselves. Therefore, the poems of Mongolian poets writing about nature sound like a distress signal, like a cry for help to nature. This is a feature. That is why Mongolian writers have initiated environmental protection measures. They stopped the construction of a chemical plant on Lake Hubsgul. The lake is the main freshwater reservoir in the world. Mongolian writers also warned that the pine forest “Tuzin Nars” was destroyed in nature every year billions of tons of waste. With such an attitude of man to nature on Earth there will soon be nothing left. There are examples of the writer C. Galsan, who planted 360 thousand trees. In this article we propose that we do not limit the observation and conclusions about the mastery of writers to the nature of the writings, but take into account personal, mental and social changes in the environment.

Floral color change in Errazurizia megacarpa, a sonoran desert shrub

1997 ◽  
Vol 75 (6) ◽  
pp. 955-959 ◽  
Author(s):  
Douglas A. Kelt
Keyword(s):  
Sonoran Desert ◽  
Color Change ◽  
Floral Display ◽  
Northern Mexico ◽  
Color Changes ◽  
Floral Color ◽  
Perennial Shrub ◽  
Pollinating Insects ◽  
Floral Displays ◽  
And Control

Flowers of many species undergo partial or complete color changes in the course of their development. These changes are thought to cue pollinators to receptive flowers. In the Lower Sonoran Desert of northern Mexico, individuals of the long-lived perennial shrub, Errazurizia megacarpa (S. Watts) I.M. Johnston 1924 (Leguminosae), produce many hundreds of racemose inflorescences in which the terminal, younger flowers have yellow corollas, while lower, older flowers have red ones. I studied the response of visitor species to the floral display of E. megacarpa by direct observation of visitor activity and by manipulating the floral display to remove yellow or red flowers. Equal-sized plants with similar sized floral displays containing only red flowers, only yellow flowers, and control plants with both red and yellow flowers, attract roughly equal numbers of putative pollinating insects. However, once pollinators have approached a plant, they discriminate against red flowers, visiting these extremely rarely. Floral color change in this species provides a cue to direct pollinator activity to receptive and rewarding flowers. Key words: floral color change, pollinator cues, reproductive ecology.

Invasive Shot Hole Borers Euwallacea fornicatus, E. kuroshio, and E. perbrevis (Coleoptera: Curculionidae: Scolytinae)

EDIS ◽  
2020 ◽  
Vol 2020 (1) ◽  
pp. 7
Author(s):  
Demian F. Gomez ◽  
Jiri Hulcr ◽  
Daniel Carrillo
Keyword(s):  
South Africa ◽  
Invasive Species ◽  
Prevention And Control ◽  
Economic Impacts ◽  
Forest Resources ◽  
Economic Damage ◽  
Ambrosia Beetles ◽  
Invasive Insects ◽  
The World ◽  
And Control

Invasive species, those that are nonnative and cause economic damage, are one of the main threats to ecosystems around the world. Ambrosia beetles are some of the most common invasive insects. Currently, severe economic impacts have been increasingly reported for all the invasive shot hole borers in South Africa, California, Israel, and throughout Asia. This 7-page fact sheet written by Demian F. Gomez, Jiri Hulcr, and Daniel Carrillo and published by the School of Forest Resources and Conservation describes shot hole borers and their biology and hosts and lists some strategies for prevention and control of these pests. http://edis.ifas.ufl.edu/fr422

Knowledge and Awareness of Dengue Fever

2018 ◽  
pp. 219-222
Author(s):  
Y. Arockia Suganthi ◽  
Chitra K. ◽  
J. Magelin Mary
Keyword(s):  
Dengue Fever ◽  
Prevention And Control ◽  
Control Measures ◽  
Infection Transmission ◽  
Standard Guideline ◽  
The World ◽  
Different Types ◽  
Prevention And Control Measures ◽  
Dengue Prevention ◽  
And Control

Dengue fever is a painful mosquito-borne infection caused by different types of virus in various localities of the world. There is no particular medicine or vaccine to treat person suffering from dengue fever. Dengue viruses are transmitted by the bite of female Aedes (Ae) mosquitoes. Dengue fever viruses are mainly transmitted by Aedes which can be active in tropical or subtropical climates. Aedes Aegypti is the key step to avoid infection transmission to save millions of people in all over the world. This paper provides a standard guideline in the planning of dengue prevention and control measures. At the same time gives the priorities including clinical management and hospitalized dengue patients have to address essentially.

THE 2019 NOVEL PANDEMIC OF CORONAVIRUS DISEASE (COVID-19): A STUDY OF EXISTING EVIDENCE IN THE INDIAN POPULATION

2020 ◽  
Vol 7 (2) ◽  
pp. 199-204
Author(s):  
Shrikant Verma ◽  
Mohammad Abbas ◽  
Sushma Verma ◽  
Syed Tasleem Raza ◽  
Farzana Mahdi
Keyword(s):  
Disease Transmission ◽  
Indian Population ◽  
Respiratory Infections ◽  
Clinical Signs ◽  
Case Fatality ◽  
Public Health Emergency ◽  
The World ◽  
And Control ◽  
General Wellbeing ◽  
Different Parts

A novel spillover coronavirus (nCoV), with its epicenter in Wuhan, China's People's Republic, has emerged as an international public health emergency. This began as an outbreak in December 2019, and till November eighth, 2020, there have been 8.5 million affirmed instances of novel Covid disease2019 (COVID-19) in India, with 1,26,611 deaths, resulting in an overall case fatality rate of 1.48 percent. Coronavirus clinical signs are fundamentally the same as those of other respiratory infections. In different parts of the world, the quantity of research center affirmed cases and related passings are rising consistently. The COVID- 19 is an arising pandemic-responsible viral infection. Coronavirus has influenced huge parts of the total populace, which has prompted a global general wellbeing crisis, setting all health associations on high attentive. This review sums up the overall landmass, virology, pathogenesis, the study of disease transmission, clinical introduction, determination, treatment, and control of COVID-19 with the reference to India.

Turkey’s foreign policy in perspective: Some regional and national interests

2020 ◽  
Vol 2020 (10-3) ◽  
pp. 82-92
Author(s):  
Gekkaya Funda
Keyword(s):  
Foreign Policy ◽  
Political Ideology ◽  
Geographical Location ◽  
National Interests ◽  
Security Culture ◽  
Center Stage ◽  
External Relations ◽  
The World ◽  
Transit Route ◽  
And Control

The formation of external policy of any country aims at serving the state’s interests. For this matter, many countries seek their way through this by taking into account the potential prospects available to them. The fundamental subtleties and factors that influence a state’s choices of external policy include geographical location, history, security, culture, trade, political ideology, military might, et cetera. Countries often make external contacts based on some regulations and response to unfolding events. Thus, external policy to an extent pertains to the guiding principles outlined to be pursued through state values, decisions and actions taken by the states themselves and their attempt to develop, manage and control the external relations of national societies. In this regard, the Caucasian region has been an important factor in Turkey’s foreign policy. Since these states emerged in the early 1990s, energy has taken a center stage within the region, while Turkey remains a transit route to the world...

Performance of 4G-LTE Communication and Navigation System in Blended Wing-Body UAS

2019 ◽  
Vol 8 (4) ◽  
pp. 9538-9542
Keyword(s):  
Satellite Communication ◽  
Line Of Sight ◽  
Multiple Factors ◽  
The World ◽  
New Type ◽  
Blended Wing Body ◽  
4G Lte ◽  
The Right ◽  
And Control ◽  
Technology Demonstrator

In vision of searching for the right Unmanned Aerial System (UAS) for a specific mission, there are multiple factors to be considered by the operator such as mission, endurance, type of payload and range of the telemetry and control. This research is focusing on extending control range of the UAS by using 4G-LTE network to enable beyond-line-of-sight flying for the commercial UAS. Major UAS such Global Hawk, Predator MQ-1 are able to fly thousands of kilometers by the use of satellite communication. However, the satellite communication annual license subscription can be very expensive. With this situation in mind, a new type of flight controller with 4G-LTE communication has been developed and tested. Throughout the research, blended-wing-body (BWB) Baseline B2S is used as the platform for technology demonstrator. Result from this analysis has proven that the proposed system is capable to control a UAS from as far as United Kingdom, with a latency less than 881 ms in average. The new added capability can potentially give the commercial UAS community a new horizon to be able to control their UAS from anywhere around the world with the availability of 4G-LTE connection

scholarly journals Investigation of the selective color-changing mechanism of Dynastes tityus beetle (Coleoptera: Scarabaeidae)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jiyu Sun ◽  
Wei Wu ◽  
Limei Tian ◽  
Wei Li ◽  
Fang Zhang ◽  
...  
Keyword(s):  
Focused Ion Beam ◽  
Color Change ◽  
Incidence Angle ◽  
Ion Beam ◽  
Three Dimensional ◽  
Water Infiltration ◽  
Photonic Materials ◽  
Local Color ◽  
Water Contact ◽  
Color Changes

AbstractNot only does the Dynastes tityus beetle display a reversible color change controlled by differences in humidity, but also, the elytron scale can change color from yellow-green to deep-brown in specified shapes. The results obtained by focused ion beam-scanning electron microscopy (FIB-SEM), show that the epicuticle (EPI) is a permeable layer, and the exocuticle (EXO) is a three-dimensional photonic crystal. To investigate the mechanism of the reversible color change, experiments were conducted to determine the water contact angle, surface chemical composition, and optical reflectance, and the reflective spectrum was simulated. The water on the surface began to permeate into the elytron via the surface elemental composition and channels in the EPI. A structural unit (SU) in the EXO allows local color changes in varied shapes. The reflectance of both yellow-green and deep-brown elytra increases as the incidence angle increases from 0° to 60°. The microstructure and changes in the refractive index are the main factors that influence the process of reversible color change. According to the simulation, the lower reflectance causing the color change to deep-brown results from water infiltration, which increases light absorption. Meanwhile, the waxy layer has no effect on the reflection of light. This study lays the foundation to manufacture engineered photonic materials that undergo controllable changes in iridescent color.

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