scholarly journals Monitoring of temporal trend of atmospheric metals by moss Hypnum cupressiforme Hedw in Jammu (India)

Atmospheric pollutants, such as metals, are extremely variable in space and time and it is cumbersome and expensive to deduce detailed information over a vast area using traditional instruments. Consequently, a cost-effective bio-monitor was preferred in the present study to analyze the atmospheric metal load. For this purpose, a moss Hypnum cupressiforme Hedw was inducted amongst moss species available to evaluate the intensity and trend of atmospheric deposition of Zn, Cu, Cd, and Pb in Jammu in the state of Jammu and Kashmir, India for a period of three years, 2014- 2016. The biomonitoring experimentation was performed by transplanting moss bags prepared from Hypnum cupressiforme, after validating its tolerance against metals using a photosynthetic efficiency analyzer in the field. Moss Hypnum cupressiforme Hedw exposed seasonally, covering summer, monsoon, and winter periods, upon the analysis provided time-integrated patterns of metal bioavailability at the study sites. An attempt was made to compare the seasonal variations during the three years of study and findings exhibited significant seasonal variations in metal. The gradient of the metal load was in the order of Cu>Cd>Zn>Pb. The total average percentage increase in the metals under consideration, Zn, Pb, Cu, and Cd, was 40%, 37%,79%, and 76%, respectively during three subsequent years. It is worth mentioning here that biomonitoring studies on atmospheric metals have never been explored for this region.

2017 ◽  
Vol 6 (2) ◽  
pp. 461
Author(s):  
Eltrizar Eltrizar

The problem in this research is the low of Civics learning outcomes in fourth grade (IV) SD Negeri 19 Balik Alam, this can be seen from the average grade, that is 66,23 (with KKM 70). The purpose of this study is to improve the results of learning Civics fourth grade students SD Negeri 19 Balik Alam with the application of quantum teaching learning model. This research is a class action research (PTK) with 2 cycles. Based on data analysis of research results after applying quantum teaching model, the average percentage of teacher activity in cycle I 66.66% increased to 85.4% in cycle II. The average percentage of student activity also increased by 56.25% in the first cycle increased to 87.49% in cycle II. Student learning outcomes on the basic score with the average class 66,23 and in the first cycle has increased with the average grade grade 71.11 with the percentage increase in learning outcomes 8.87% and the percentage of students who complete 73.07%, and on the second cycle increased again with the average class of 77.60 with the percentage increase in learning outcomes 17.16% and the percentage of students who complete 84.61%. The results of this study showed that the application of quantum teaching model can improve the learning outcomes of fourth grade students of SD Negeri 19 Balik Alam.


2019 ◽  
Vol 8 (3) ◽  
pp. 105-112
Author(s):  
Thu- Rein

Studies on percent cover and biomass of seagrasses from Shwe Thaung Yan coastal areas (Inn Din Gyi, Kyauk Nagar and Phoe Htaung Gyaing), the Southern parts of Rakhine Coastal Region, were carried out between March and August, 2018. A total of 8 species of seagrasses, namely Syringodiumisoetifolium (Ascherson) Danty, Halodulepinifolia (Miki) den Hartog, Haloduleuninervis (Forsskal) Ascherson, Cymodocearotundata Ehrenberg et Hemprich ex Ascherson, C. serrulata (R. Brown) Ascherson et Magnus, Thalassiahemprichii(Ehrenberg) Ascherson, Halophila major (Zoll.) Miquel and Enhalusacoroides (Linnaeus f.) Royle, were recorded in three study sites. Seagrass meadow in this study showed seasonal variations in both percent cover and biomass. Total seagrass coverage and biomass were higher in the dry season than in the monsoon season. Total seagrass coverage ranged between 8% and 75% in Phoe Htaung Gyaing, between 10% and 42% in Kyauk Nagar, and between 15% and 43% in Inn Din Gyi. Total seagrass mean biomass was 50.2413-259.846gdry.wtm-2 in Phoe Htaung Gyaing, 63.0194 -321.535gdry.wtm-2 in Kyauk Nagar, and 98.6819-416.237gdry.wtm-2 in Inn Din Gyi.


Author(s):  
Ankita Singh ◽  
K. P. S. Senger ◽  
Arvind K. Singh ◽  
Ajay K. Singh

Background: Immunization is one of the most powerful and cost effective tools available to improve public and global health and is essential for every child’s life. This study aims to estimate the immunization status and factors effecting drop-outs from immunization in children residing in Uri, Jammu & Kashmir. Methods: It is a cross-sectional descriptive study, with sample-size of 480 children between 12 to 23 months of age. Immunization status was assessed depending upon coverage of four important vaccines given during primary immunization. Results: The study showed that total primary immunization status of Uri was 58.12% with 91.2% OPV, 88.1% BCG, 72.5% DPT and 58.8% measles immunization (CI= 95%, p<0.05). Factors effecting drop-outs were distantly located health centre (27.9%), poor motivation (33.12%), lack of awareness (9.77%), and parental refusal (in case of OPV was 5.35%) (CI= 95%, p<0.05). Literate mothers were more likely to get their children completely immunized. Gender Bias wasn't observed. Conclusions: Findings suggest that immunization status needs to be improved by focussing on vaccines having low coverage (DPT and measles) by creating awareness and better out-reach facilities with the involvement of community workers. 


1956 ◽  
Vol 186 (1) ◽  
pp. 85-88
Author(s):  
Paul K. Mooring ◽  
John Rathe ◽  
Walter S. Root

Intravenous injection of Adrenalin (1 ml of 1:300,000–1:25,000) into 10 normal, anesthetized (Nembutal) dogs produced an average increase in mean arterial pressure which amounted to about 25 at the lower and 100 mm Hg at the higher doses. Essentially the same responses were shown by seven anesthetized, vagotomized dogs and five anesthetized, vagotomized animals in which the carotid regions were denervated. Eight anesthetized dogs with spinal cords cut between C8 and T1 showed after Adrenalin injection an average percentage increase in mean arterial pressure which was some threefold greater than that found in normal, anesthetized animals. This difference was increased still further by bilateral section of the vagi in eight spinal dogs. Section of the spinal cord one or two segments below C8 to T1 (4 dogs) decreased the response to Adrenalin. The increase in mean arterial pressure induced by the intravenous injection of Adrenalin was greater in six spinal dogs (C8 to T1) anesthetized with Nembutal than in two similar unanesthetized animals. Acute changes in plasma volume did not influence the magnitude of the blood pressure response to Adrenalin shown by four high spinal animals.


2018 ◽  
Author(s):  
Qian Xiao ◽  
Mei Li ◽  
Huan Liu ◽  
Fanyuan Deng ◽  
Mingliang Fu ◽  
...  

Abstract. Emissions from ships at berth played an important role in the exposure of atmospheric pollutants to high density population in port areas, but these emissions were not understood very well. In this study, volatile organic compounds (VOCs) and particle emissions from 20 container ships at berth were sampled and analyzed during the fuel switch period at Jingtang Port in Hebei Province, China. VOCs and particles were analyzed by gas chromatography-mass spectrometer (GC-MS) and the Single Particle Aerosol Mass Spectrometer (SPAMS), respectively. VOCs analysis showed that alkanes and aromatics, especially benzene, toluene and heavier compounds e.g. n-heptane, n-octane, n-nonane, dominated the total identified species. Secondary organic aerosol yields and ozone forming potential were 0.017 ± 0.007 g SOA/g VOCs and 2.63 ± 0.37 g O3/g VOCs, respectively. Both positive and negative ion mass spectra from individual ship were derived and intensity of specific ions could be quantified. Results showed that element carbon (35.74 %), element carbon-organic carbon mixture (33.95 %) and Na-rich particles (21.12 %) were major classes with a total number ratio of 90.7 %. Particles from ship auxiliary engines were in a size range of 0.2 to 2.5 μm, with a peak occurring at around 0.4 μm. The issue of vanadium as tracer element was discussed that V was not a proper tracer when using low sulfur content diesel oil. The average percentage of sulfate particles from shipping emissions before and after switching to marine diesel oil were 23.82 % and 23.61 % respectively. The total results provide robust evidences in port area air quality assessment and source apportionment.


2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Guri Sogn Andersen ◽  
Henning Steen ◽  
Hartvig Christie ◽  
Stein Fredriksen ◽  
Frithjof Emil Moy

On the Skagerrak coast the kelpSaccharina latissimahas suffered severe stand reductions over the last decade, resulting in loss of important habitats. In the present study, healthy kelp plants were transplanted into four deforested areas and their patterns of growth, reproduction, and survival were monitored through subsequent seasons. Our main objective was to establish whether the kelp plants were able to grow and mature in deforested areas. We observed normal patterns of growth and maturation at all study sites. However, heavy fouling by epiphytes occurred each summer, followed by high kelp mortality. The study shows that the seasonal variations and the life stage timing ofS. latissimamake formation of self-sustainable populations impossible in the present environment. Most noteworthy, we suggest that fouling by epiphytes is involved in the lack of kelp forest recovery in Skagerrak, Norway.


1994 ◽  
Vol 72 (10) ◽  
pp. 1755-1763 ◽  
Author(s):  
Francine Mercier ◽  
Raymond McNeil

We analyzed the relationship between the abundance of shorebirds and that of their intertidal invertebrate prey, and attempted to determine if shorebird predation significantly affects prey density. The study was conducted at three sites in the Chacopata Lagoon complex in northeastern Venezuela between January 1985 and September 1986, using shorebird census data, monthly sampling of intertidal invertebrates, and exclosure experiments. The invertebrates collected were divided into three groups: (i) polychaetes (≤50 mm in length), (ii) small bivalves (2 – 3 mm in length), and (iii) other species. The overall density of shorebirds foraging in the Chacopata Lagoon complex was very high, exceeding the densities reported for most other staging and overwintering areas by a wide margin. The abundance of shorebirds in the study area was related primarily to the density of polychaetes, their main prey. At two of the study sites, the arrival of fall migrants followed a significant increase in polychaete numbers. The increase in shorebird numbers in autumn was negligible at the third site, where polychaete density was lower than at the other sites. The impact of shorebird predation on their invertebrate prey varied seasonally, as did the extent of the foraging area available to them. The exclosure experiment revealed significant differences in the density of polychaetes inside and outside the exclosures only during, or shortly after, the fall migration period. The variability in the conclusions drawn from other studies examining prey depletion by shorebirds in tropical environments may be explained by differences in the length of sampling periods and seasonal variations in the numbers of foraging shorebirds, the energy demands of moult, fat deposition, and the intertidal surface area available for feeding. The impact of seasonal variables such as these should be taken into consideration when designing studies to measure prey depletion by shorebirds; such objectives may necessitate long-term studies.


2019 ◽  
Author(s):  
Theresia Stevany ◽  
Aming Tirta

Sales and accounts receivable control systems are important in the trading business. Control of accounts receivable is made to prevent the control of bad debts. Receivables need to be managed effectively and efficiently to the target of credit sales system is achieved.The purpose of this study was to evaluate the system and controlling the sale of receivables in a manufacturing company do credit sales. Evaluation conducted to determine the system of sales and accounts receivable control of the company has been efficient or not, judging from the calculation of the ratios of receivables, such as age of accounts receivable, accounts receivable collection, accounts receivable turnover. Research on the author is in the PT Cahaya Sakti Multi Intraco.The results showed that PT Cahaya Sakti Multi Intraco SOP has made a pretty good sales. Control accounts can not be controlled. To ensure the accounts have been inefficient or not, can be calculated through the age of accounts receivable, accounts receivable collection, accounts receivable turnover of the company. From the data described in the discussion section, look no relationship between the efficiency of sales to accounts receivable system. Although sales have increased, not by itself increase Arto, this is due to the average percentage increase in accounts receivable are much higher than the percentage increase in sales. Companies must implement control measures more appropriate accounts and tighter so that the average accounts receivable could be better than the target than the credit period granted to customers. Should at least be in accordance with the credit period granted to customers. (Credit Term).


2019 ◽  
Vol 4 (1) ◽  
pp. 97
Author(s):  
Setyo Eko Atmojo ◽  
Beny Dwi Lukitoaji

<p><strong><em>Abstract.</em></strong><em> </em><em>The purpose of this activity is to overcome the difficulties of teachers in planning and implementing learning with scientific approach and character value. The method of this activity is in the form of training, then the participants are guided to apply the training results in the process of developing learning tools with scientific approach integrated character value. This training is held 8 times, it is intended that the participants are able to develop and implement scientifically-oriented learning tools that integrate character values correctly. The training results show the average pretest score of 45.72. The score indicates that the participants' knowledge of the scientific approach and the value of the character are still low and the need for training in the preparation of learning tools with a scientific approach that integrates the character values. The average postes result is 78,54. While the average percentage increase in the score from pretest to postes of 32.81%. It shows that the increase of score from pretes to postes has fulfilled the training target that is &gt; 25%. The average of the result of the assessment of learning device product of scientific approach and integrated character value equal to 76,18 which have fulfilled the training target that is &gt; 70.</em></p><p><strong><em>Keywords</em></strong><em>: learning tool, scientific approach, character value</em></p><p align="center"><strong> </strong></p><p><strong>Abstrak</strong><strong>.</strong> Tujuan kegiatan ini adalah mengatasi kesulitan guru dalam merencanakan dan mengimplementasikan pembelajaran dengan pendekatan saintifik dan nilai karakter. Metode kegiatan ini adalah berupa pelatihan, selanjutnya peserta dibimbing untuk menerapkan hasil pelatihan dalam proses menyusun perangkat pembelajaran berpendekatan saintifik terintegrasi nilai karakter. Pelatihan ini dilaksanakan sebanyak 8 kali, hal ini dimaksudkan agar peserta mampu menyusun dan mengimplementasikan perangkat pembelajaran berpendekatan saintifik terintegrasi nilai karakter dengan benar. Hasil pelatihan menunjukkan rata-rata skor pretes sebesar 45,72. Skor tersebut menunjukkan bahwa pngetahuan peserta tentang pendekatan saintifik dan nilai nilai karakter masih rendah dan perlu adanya pelatihan penyusunan perangkat pembelajaran dengan pendekatan saintifik yang mengintegrasikan nilai karakter. Hasil rata-rata postes yaitu sebesar 78,54. Sedangkan rata rata persentase peningkatan skor dari pretes ke postes sebesar 32,81%.  Hal tersebut menunjukkan bahwa peningkatan skor dari pretes ke postes sudah memenuhi target pelatihan yaitu &gt; 25%. Rata rata hasil penilaian produk perangkat pembelajaran berpendekatan saintifik dan terintegrasi nilai karakter sebesar sebesar 76,18 yang sudah memenuhi target pelatihan yaitu &gt;70.</p><p><strong>Kata kunci</strong> : perangkat pembelajaran, pendekatan saintifik, nilai karakter</p>


2009 ◽  
Vol 61 (2) ◽  
pp. 225-229 ◽  
Author(s):  
M. Veljic ◽  
Aleksandra Djuric ◽  
Marina Sokovic ◽  
Ana Ciric ◽  
Jasmina Glamoclija ◽  
...  

Antibacterial and antifungal activities of methanol extracts of the moss species Fontinalis antipyretica Hedw. var. antipyretica, Hypnum cupressiforme Hedw., and Ctenidium molluscum (Hedw.) Mitt. were analyzed. Antimicrobial activity was tested against Gram (+) (Bacillus subtilis, Micrococcus flavus, and Staphylococcus epidermidis) and Gram (-) (Escherichia coli and Salmonella enteritidis) bacteria. Antifungal activity of extracts was tested using the following micromycetes: Trichoderma viride, Penicillium funiculosum, P. ochrochloron, Aspergillus fumigatus, A. flavus, and A. niger. The methanol extract of Fontinalis antipyretica showed the strongest activity against the tested bacteria and micromycetes. The antibacterial effect of methanol extracts was higher against the G (-) (Escherichia coli and Salmonella enteritidis) than against the G (+) bacteria tested.


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