scholarly journals Potensi Tumbuhan Xanthostemon novoguineensis Valeton (Myrtaceae) dalam Fitoteknologi

2018 ◽  
Vol 10 (1) ◽  
Author(s):  
Raynard C. Sanito
Keyword(s):  
Green Space ◽  
Soil Condition ◽  
Polluted Environment ◽  
Endemic Plant ◽  
High Concentration ◽  
Public And Private ◽  
Yellow Colour ◽  
Ecology Function ◽  
Cultural Functions ◽  
Area X

This article is essential in a further analysis that related with potential feasibility function of Xanthostemon novoguineensis in phytotechnology from one of an endemic plant in Papua, particularly in the remediation of polluted environment and the phytostructure of open green space area. This review aims to analyse the potential of this plant based on literature review and compare each research results  towards some species from Myrtaceae family. X. novoguineensis may be cultivated on an open green space area in Papua due to complying suitable requirements. Those requirements are namely ecology function as a source of insect diets, social-cultural functions in represent culture, the the relationship among Papuan Ethnic and their nature, and aesthetic functions due to its beautiful flower. In addition, the plant has a potential in phytoremediation of polluted environment due to its adaptation ability in a dry soil condition. As the comparison, the phytostructure of open green space area context, X. chrysanthus has been cultivated on a public and private open green space area in Malaysia and Singapore. It has an important role as ecology function due to provide the source of food to many birds species undirectly. Owing to make the city landscape greater, the flower of X. chrysanthus, which has conspicuously and magnificently yellow colour, is a suitable plant to be cultivated. Furthermore, in the remediation assessment of polluted environment, X. chrysanthus has the abilities in adaptation on the dry environment. The range levels acid (pH) of soil are 2-2.5. Interestingly, X. melanoxylon, which is an endemic species from Solomon Island, is growth naturally in an ultrafamic soils, consist of a high concentration of chromium, nickel, and magnesium. It also has a low degree of plants biodiversity. Therefore, according to X. chrysanthus and X. melanoxylon, X. novoguneensis has a tremendous potential as a candidate in Phytostructure and Phytoremediation. However, the further investigation is required to reveal the potential and the conservation challenge of this plant in Papua. Key words: phytoremediation, phytostructure, open green space area, X. chrysanthus, Potential.

Where do the children play? An objective analysis of children’s use of green space

2020 ◽  
Author(s):  
Nadia Freeman ◽  
Ryan Gage ◽  
Tim Chambers ◽  
Paul Blaschke ◽  
Hera Cook ◽  
...  
Keyword(s):  
Leisure Time ◽  
Green Space ◽  
Objective Assessment ◽  
Space Use ◽  
Green Spaces ◽  
Objective Analysis ◽  
Public And Private ◽  
Physically Active ◽  
Wearable Cameras ◽  
Objective Research

Summary Green space is important for health, yet, objective research on children’s use of green space is sparse. This study aimed to objectively assess children’s use of green space in both public and private settings during their summer leisure time, using wearable cameras. Images from cameras worn by 74 children were analysed for green space use over 4 days. Children spent an average of ∼1/10 h of leisure time in green space in the summer months, were physically active 68%, and with others 85%, of the time. Green spaces are important places for children’s health because they are places they frequent and places where they are physically active and socialize. Wearable cameras provide an effective method for objective assessment of green space use.

scholarly journals UAV-Based Air Pollutant Source Localization Using Combined Metaheuristic and Probabilistic Methods

2019 ◽  
Vol 9 (18) ◽  
pp. 3712 ◽  
Author(s):  
Noe Yungaicela-Naula ◽  
Luis E. Garza-Castañon ◽  
Youmin Zhang ◽  
Luis I. Minchala-Avila
Keyword(s):  
Source Localization ◽  
Air Pollutant ◽  
Probabilistic Methods ◽  
Polluted Environment ◽  
High Concentration ◽  
Probability Map ◽  
Simulation Based ◽  
Pollutant Source ◽  
Low Costs ◽  
Sensor Information

Air pollution is one of the greatest risks for the health of people. In recent years, platforms based on Unmanned Aerial Vehicles (UAVs) for the monitoring of pollution in the air have been studied to deal with this problem, due to several advantages, such as low-costs, security, multitask and ease of deployment. However, due to the limitations in the flying time of the UAVs, these platforms could perform monitoring tasks poorly if the mission is not executed with an adequate strategy and algorithm. Their application can be improved if the UAVs have the ability to perform autonomous monitoring of the areas with a high concentration of the pollutant, or even to locate the pollutant source. This work proposes an algorithm to locate an air pollutant’s source by using a UAV. The algorithm has two components: (i) a metaheuristic technique is used to trace the increasing gradient of the pollutant concentration, and (ii) a probabilistic component complements the method by concentrating the search in the most promising areas in the targeted environment. The metaheuristic technique has been selected from a simulation-based comparative analysis between some classical techniques. The probabilistic component uses the Bayesian methodology to build and update a probability map of the pollutant source location, with each new sensor information available, while the UAV navigates in the environment. The proposed solution was tested experimentally with a real quadrotor navigating in a virtual polluted environment. The results show the effectiveness and robustness of the algorithm.

scholarly journals The role of perceived public and private green space in subjective health and wellbeing during and after the first peak of the COVID-19 outbreak

2021 ◽  
Vol 211 ◽  
pp. 104092
Author(s):  
Wouter Poortinga ◽  
Natasha Bird ◽  
Britt Hallingberg ◽  
Rhiannon Phillips ◽  
Denitza Williams
Keyword(s):  
Green Space ◽  
Subjective Health ◽  
Public And Private ◽  
Health And Wellbeing

scholarly journals Comparison of Stream Characteristics of Forested Subwatershed and Deforested Watershed in Mangunan Area, DIY

2004 ◽  
Vol 13 (2) ◽  
Author(s):  
S Sudarmadji
Keyword(s):  
Land Use ◽  
Land Use Changes ◽  
Soil Condition ◽  
Time Base ◽  
Soil Conditions ◽  
High Concentration ◽  
Negative Effects ◽  
Hydrological System ◽  
The One ◽  
Different Characteristics

Land use changes from forested  into unforest catchment result negative effects to the environment, including to the hydrological and soil condition of the area. To improve the hydrological and soil conditions serious attemps are required, and they take a long period to realize. The Mangunan Girirejo area (which is located in the Bantul regency, Yogyakarta Special Province) is one of pilot projects managed by the Gadjah Mada University. Among it’s activities the project tried to improve critical land by reforesting the area with  some kinds of plant. From the hydrological points of view this attemps should be evaluated, by comparing runoff from two adjacent catchments having similar conditions expect those on the land use. One of them is forested catchment, while the other is unforest catchment. The study  was conducted in the Mangunan Girirejo area using two small subcatchments. The forested subccatchment used for the study having an area 2.225 hectares. The forested subcatchment in now mostly covered by the pinus mercusii, acacia auliculiformis and malaleuca leucacendra, while the unforested subcatchment is used for the dry field ultivation, and dominantly casava, beam, and corn were planted in the subcatchment. About three month was needed for observing hydrological parameters (from January to March 1993). During the research some hydrological component such as rainfall, overlandflow, seepages, and runoff were observed. Rainfall in the study area generally  having less than 100 mm depth, falling in shorter than 4 hours duration. As an input in the hydrological system of the subcatchment, the rainfall did not always result runoff. In the forested subcatchment rainfall did not always result runoff. In the forested subcatchment rainfall higher than 10 mm depth result runoff, while in the unforested subcatchment the 5 mm rainfall is concidered as minimum rainfall to result runoff. The runoff hydrolographs of the two subcatchment having different characteristics. Although they have quick rise, the time of rise in the unforested subcatchment is shorter that those to the forested subcatchment. The hydrographs of the forested subcatchment have lower peaks than the unforested subcatchment, however the time base of hydrographs in the unforested subcatchment are longer. Chemical substances those which dominated the rock forming minerals (Ca, Mg, Na, K, HCO3, SO4, and SiO2) significantly increased from rainfall to runoff. The highest concentration found in the surface runoffand seepages. However if the one compared the concentration of the chemicals in the water originated from forestsed and underforested watershed he may say that the concentration of the chemical in water from unforested subcatchment is generaly higher than those from the forested subcatchment is generaly higher than those from the forested subcatchment. Runoff draining from unforested subcatchment having a higher SO4 and PO4 concentration sompared to those originated from forested subcatchment. The high concentration of the substances may bee caused by use of fertilizer by farmers in the unforested subcatchment.

scholarly journals Urban Gardening and Green Space Governance: Towards New Collaborative Planning Practices

2016 ◽  
Vol 1 (1) ◽  
pp. 5-19 ◽  
Author(s):  
Sofia Nikolaidou ◽  
Tanja Klöti ◽  
Simone Tappert ◽  
Matthias Drilling
Keyword(s):  
Urban Areas ◽  
Open Space ◽  
Green Space ◽  
Local Politics ◽  
Small Scale ◽  
Public And Private ◽  
Urban Forms ◽  
Urban Gardening ◽  
The One ◽  
Public Green Space

In the context of urban densification and central urban areas’ lack of open spaces, new forms of small-scale urban gardening practices have emerged. These gardening practices respond to urban pressures and open new modes of green space governance, presenting alternative and multifunctional ways to manage and revitalise cities. Focusing on the case of Geneva, the article unfolds two levels of discussion. On the one hand—and with reference to the theorist Habermas—it examines how multiple actors with different interests interplay and cooperate with each other in order to negotiate over open space, while discussing implications for local politics and planning. On the other hand, it describes how these negotiations result in new, innovative, and hybrid forms of public green space. The main findings indicate emerging forms of collaboration, partnerships, and governance patterns that involve public and private sectors and increase participation by civil society actors. Cooperation amongst several interested groups and the collective re-invention of public urban spaces increase these spaces’ accessibility for multiple users and actors, as well as present possibilities for alternative and diversified uses and activities. This might underline the hypothesis that future cities will be governed in less formalised ways, and that urban forms will be created through spontaneous, temporary, mobile, and adaptive negotiation processes.

scholarly journals The Role of Urban Green Space in Promoting Inclusion: Experiences From the Netherlands

2021 ◽  
Vol 9 ◽  
Author(s):  
Wim De Haas ◽  
Jan Hassink ◽  
Marian Stuiver
Keyword(s):  
Green Space ◽  
Urban Green Space ◽  
Health Issues ◽  
Public And Private ◽  
Urban Green ◽  
Health And Wellbeing ◽  
People With Dementia ◽  
Private Actors ◽  
Four Discourses

Urban Green Space (UGS) is considered to be beneficial for health and wellbeing of urban residents. But there is growing evidence that benefits are not equally distributed. In this article we aim to understand the role that UGS plays in the process of social exclusion and the role urban greening strategies can play in enhancing social equity for specific groups that are excluded: elderly people with dementia, people with mental issues and people from an underprivileged neighborhood. The concepts of inclusion and exclusion and their relation to UGS are discussed. Four exclusion mechanisms are distinguished based on the role of the physical and societal environment and on the role of actors involved (public or private). Further, we identify four discourses behind possible strategies and measures to promote inclusion. These mechanisms and discourses are confronted with an analysis of three cases promoting inclusion of elderly with dementia, people with mental health issues and people from an underprivileged neighborhood. Succesful inclusion strategies in these cases are based on alignment between private actors initiatives and public actions. The cases indicate that public and private actors need to cooperate better in order to make UGS part of inclusion strategies.

Stenocalcic properties in the serpentine-endemic plant Alyssum inflatum Nyárády

2015 ◽  
Vol 63 (2) ◽  
pp. 31 ◽  
Author(s):  
Rasoul Ghasemi ◽  
Zohreh Zare Chavoshi ◽  
Seyed Majid Ghaderian
Keyword(s):  
Cell Death ◽  
Solution Culture ◽  
Nadh Oxidation ◽  
Blue Staining ◽  
Endemic Plant ◽  
High Concentration ◽  
Oxidation Activity ◽  
Root Cells ◽  
Protein Leakage ◽  
Whole Plant

Serpentine-endemic plants need to grow in substrates with low calcium (Ca). To test this hypothesis, we compared some of the survival-related physiological responses to different concentrations of Ca in Alyssum inflatum (serpentine endemic) and A. lanceolatum (non-serpentine plant). Accordingly, we grew the plants by using solution culture, and the death of root cells was estimated by using Evan’s blue staining. The electrolyte and protein leakage from roots and NADH oxidation activity in the leaked contents were measured as indices of cell death. The results showed that despite the higher growth of shoots in serpentine plants, the high concentration of Ca caused less root growth. Meanwhile, we observed root-cell death, whole-plant death, more electrolyte and protein leakage from roots and a greater NADH oxidation activity in Ca-treated serpentine plants. In non-serpentine plants, both root and shoot showed more growth, whereas no evidence of cell death in the roots was observed. On the basis of the responses to different concentrations of Ca, we introduce the serpentine plant A. inflatum as a stenocalcic that has to live in substrates with a narrow range of Ca concentrations so that it could prevent lethal Ca toxicity. The results demonstrated the reason behind the uneven distribution of the plant on serpentine patches in its habitat.

scholarly journals Cultural and Natural Resources in Tourism Island: Bibliometric Mapping

2020 ◽  
Vol 12 (2) ◽  
pp. 724 ◽  
Author(s):  
María del Río-Rama ◽  
Claudia Maldonado-Erazo ◽  
José Álvarez-García ◽  
Amador Durán-Sánchez
Keyword(s):  
Natural Resources ◽  
Geographical Area ◽  
Research Work ◽  
The United States ◽  
Scientific Production ◽  
Future Research ◽  
Endemic Plant ◽  
High Concentration ◽  
Island Ecosystems ◽  
Depth Analysis

Island ecosystems have very specific physical, economic and socio-cultural characteristics, which are shared by most of these ecosystems regardless of their geographical area. These characteristics include well defined geographical boundaries that lead to a greater degree of isolation, lack of economically exploitable resources, great external dependence for consumption, cultural and natural heritage with a high uniqueness level and a high concentration of endemic plant and animal species. All of them are responsible for the high development dependence level linked to the tourism activity of these ecosystems. Thus, island ecosystems are currently an important international tourism destination, where a great diversity of very attractive natural and cultural resources and of great heritage value are concentrated. This fact allows for the development of tourism activities of great heterogeneity among countries or regions of the world that host these island ecosystems. The aim of this research was to identify and analyze, through a bibliometric and bibliographic analysis, the scientific production indexed in the international Scopus database, which addresses the subject of use of cultural and natural resources by tourism in island ecosystems. This scientific mapping allows us to observe the evolution of scientific production in this field of study. The results show that this is a new subject (a large number of transient authors), predominantly affiliated with the United States and Spain. The most followed research lines to date are destination management followed very far by responsible environmental behavior and the impacts of sustainable development. However, the keywords with the highest co-occurrence show that the hot topics are tourism exploitation in the ecotourism field and sustainable tourism development. This research is considered the first bibliometric study carried out which is related to this thematic approach, providing a clear in-depth analysis for researchers and thereby facilitating the approach of future research work.

scholarly journals Characterization of an Endemic Plant Origanum grosii from Morocco: Trace Element Concentration and Antihyperglycemic Activities

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
H. El hassouni ◽  
M. Bouhrim ◽  
R. El hajji ◽  
M. Bnouham ◽  
A. Ziyyat ◽  
...  
Keyword(s):  
Trace Elements ◽  
Digestive Enzyme ◽  
Folk Medicine ◽  
Principal Component ◽  
Biological Properties ◽  
Postprandial Hyperglycemia ◽  
Control Group ◽  
Oral Glucose ◽  
Endemic Plant ◽  
High Concentration

Origanum genus is one of the most widely used herbs in folk medicine for its biological properties. The present investigation aims to characterize, for the first time, endemic Origanum grosii collected from the Taounate region, Morocco. This characterization was realized by determining the concentration of metals in different parts of the plant (flowers, leaves, and stems) by ICP-MS, and the results were studied statistically by Principal Component Analysis (PCA). Phytochemical screening with the dosage of polyphenols and flavonoids has been conducted. To know more about this species, antihyperglycemic tests have been performed to highlight the presence or absence of the antidiabetic effect for this plant. An Oral Glucose Tolerance Test (OGTT) has been performed on normal mice which were divided into two groups of six mice each. Group 1 (control group) was treated with distilled water, and group 2 was treated with an aqueous extract of O. grosii by gavage at 150 mg/kg. Digestive enzyme α-amylase inhibition assay has also been evaluated to study the inhibition effect of the studied extract using acarbose as a control. The results showed that the leaves exhibited a high concentration of trace elements (Ca, Mg, and K) and total absence of heavy metals, which were found in small quantities (Cr, Ni, and B) on the stems, and this makes the plant safe to use. On the other hand, tannins, flavonoids, triterpenes, and steroids were the major families strongly present in this species. The antidiabetic results showed that O. grosii have significantly reduced postprandial hyperglycemia after glucose loading in normal rats. It showed also that this species has a significant antihyperglycemic activity reflected by the inhibition of α-amylase. The one responsible for this property could be the synergy between the trace elements and the nature of the chemical families of O. grosii species, which can make this plant useful in the management of postprandial hyperglycemia.

Comparative Assessment of Formaldehyde Concentrations in Public and Private Mortuaries in Rivers State, Nigeria

2019 ◽  
pp. 1-11
Author(s):  
Obed-Whyte, Roland ◽  
K. E. Douglas ◽  
O. Akaranta
Keyword(s):  
Weighted Average ◽  
Sampling Technique ◽  
High Concentration ◽  
Cross Sectional ◽  
Public And Private ◽  
Skin Contact ◽  
Exposure Limit ◽  
Short Term Exposure ◽  
Gas Detector ◽  
Rivers State

Introduction: Formaldehyde is an industrial chemical that is classified as a volatile organic compound (VOC). It is commonly use in mortuaries for the preservation (embalmment) of the dead in Rivers State. Mortuary workers are occupationally exposed to formaldehyde by inhalation and skin contact. This objective/aim of the study was to measure and compare the concentration of formaldehyde in public and private mortuaries of Rivers State, Nigeria. Methodology: This cross-sectional (field) survey was carried out in 9 public and 6 private mortuaries in Rivers State. The Time-Weighted Average (TWA) and short- Term Exposure Limit (STEL) of formaldehyde concentrations in the embalmment sections of the mortuaries were measured using a suitable formaldehyde gas detector instrument. The mortuaries were selected by a multistage sampling technique. Data were collected, entered and analyzed using XL STATA and SPSS and presented in tables and graphs. Results: The mean TWA concentration of formaldehyde in public and private mortuaries was 2.42+-1.77 and 2.52+-0.99 ppm respectively. Also, the STEL concentration measured in public and private mortuaries were 0.91+-0.99 and 1.93+-1.22 ppm. The 8 hour TWA values exceeded OSHA (0.75) and NIOSH (0.016 ppm) standards. Conclusion: There was a high concentration of formaldehyde in both public and private mortuaries which may pose high risk to the health of the mortuary workers of Rivers State. The study recommended health education and surveillance among mortuary workers and good engineering design in the mortuary.

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