scholarly journals PENGARUH KERAPATAN MANGROVE TERHADAP LAJU SEDIMENTASI DI DESA BEDONO DEMAK (The Effect of Mangrove Density on Sedimentation Rate in Bedono Village, Demak)

2018 ◽  
Vol 6 (4) ◽  
pp. 536-545
Author(s):  
Yuni Harvesty Sihombing ◽  
Max Rudolf Muskananfola ◽  
Churun A’in
Keyword(s):  
Sedimentation Rate ◽  
Mangrove Forest ◽  
Sediment Traps ◽  
Sampling Location ◽  
Time Interval ◽  
Average Value ◽  
Mangrove Vegetation ◽  
Mangrove Roots ◽  
The Relationship

Mangrove di kawasan perairan Bedono, Kecamatan Sayung, Demak dimanfaatkan masyarakat untuk memenuhi kebutuhan hidupnya melalui alih fungsi lahan mangrove menjadi tambak, permukiman, industri, dan penebangan oleh masyarakat untuk berbagai kepentingan, sehingga mengurangi daya tangkap akar mangrove sebagai pemerangkap sedimen. Penelitian ini bertujuan untuk mengetahui pengaruh kerapatan mangrove terhadap laju sedimentasi. Penelitian dilaksanakan pada April 2017 di kawasan hutan mangrove Desa Bedono. Penentuan lokasi sampling dilakukan dengan melakukan beberapa kali observasi/studi pendahuluan. Observasi dilakukan dengan cara mencari tiga stasiun vegetasi mangrove dengan kerapatan yang berbeda yaitu rapat, sedang dan jarang. Pada tiap-tiap stasiun terdapat 3 titik pengambilan sampel. Pengambilan ­sampel dilakukan sebanyak 3 kali dengan interval waktu 2 minggu. Hasil penelitian menunjukkan bahwa laju sedimentasi paling tinggi terdapat pada stasiun I titik 3 dengan nilai rata-rata 30,935 mg/cm2/hari dimana pada lokasi ini memiliki kerapatan mangrove yang paling rendah yaitu 600 pohon/ha sedangkan nilai laju sedimentasi paling rendah terdapat pada stasiun III titik 2 dengan nilai rata-rata 4,891 mg/cm2/hari dimana pada lokasi ini memiliki kerapatan paling tinggi yaitu 3100 pohon/ha. Hubungan kerapatan mangrove dan laju sedimentasi menunjukkan korelasi negatif sebesar -0.842 artinya ketika kerapatan mangrove tinggi maka laju sedimentasi akan rendah dan sebaliknya ketika kerapatan mangrove rendah maka laju sedimentasi akan tinggi. Mangrove in the area of Bedono waters, Sayung District, Demak are utilized by the society to fulfill their life needs through land mangrove conversion into ponds, settlement, industry, and logging by the society for various purposes, thereby reducing the mangrove roots capability as a sediment traps. The purpose of this study was to determine the influence of mangrove density on sedimentation rate. The research was conducted in April 2017 in the mangrove forest area of Bedono Village. Determination of sampling location was done by conducting some initial observation. Observation was done by searching three mangrove vegetation stations with different density is high, medium and rare density. In each station there are 3 points of sampling. Samples were collected three times in 2 weeks time interval. The results showed that the highest sedimentation rate was found at station I point 3 with the average value of 30.935 mg/cm2/day where at this location has the lowest mangrove density of 600 trees/ha while the lowest sedimentation rate was found at station III Point 2 with the average value of 4.891 mg/cm2/day where at this location has the highest density of 3100 trees/ha. The relationship between mangrove density and sedimentation rate exhibits a negative correlation of -0,842 this means that when the mangrove density is high then the sedimentation rate will be low and otherwise when the mangrove density is low then the sedimentation rate will be high.  

scholarly journals Determination of vertical dimension of occlusion by using the phonetic vowel "O" and "E"

2015 ◽  
Vol 72 (2) ◽  
pp. 123-131 ◽  
Author(s):  
Marko Igic ◽  
Nebojsa Krunic ◽  
Ljiljana Aleksov ◽  
Milena Kostic ◽  
Aleksandra Igic ◽  
...  
Keyword(s):  
Cognitive Functions ◽  
Complete Denture ◽  
Reference Points ◽  
Vertical Dimension ◽  
Entire Sample ◽  
Average Value ◽  
Significant Difference ◽  
The Relationship

Background/Aim. The vertical dimension of occlusion is a very important parameter for proper reconstruction of the relationship between the jaws. The literature describes many methods for its finding, from the simple, easily applicable clinically, to quite complicated, with the use of one or more devices for determination. The aim of this study was to examine the possibility of determining the vertical dimension of occlusion using the vocals ?O? and ?E? with the control of values o btained by applying cognitive functions. Methods. This investigation was performed with the two groups of patients. The first group consisted of 50 females and 50 males, aged 18 to 30 years. In this group the distance between the reference points (on top of the nose and chin) was measured in the position of the mandible in the vertical dimension of occlusion, the vertical dimension at rest and the pronunciation of the words ?OLO? and ?ELE?. Checking the correctness of the particular value for the word ?OLO? was also performed by the phonetic method with the application of cognitive exercises when the patients counted from 89 to 80. The obtained difference in the average values i n determining the vertical dimension of occlusion and the ?OLO? and ?ELE? in the first group was used as the reference for determining the vertical dimension of occlusion in the second group of patients. The second group comprised of 31 edentulous persons (14 females and 17 males), aged from 54 to 85 years who had been made a complete denture. Results. The average value obtained for the vertical dimension of rest for the entire sample was 2.16 mm, for the word ?OLO? for the entire sample was 5.51 mm and for the word ?ELE? for the entire sample was 7.47 mm. There was no statistically significant difference between the genders for the value of the vertical dimension at rest, ?ELE? and ?OLO?. There was a statistically significant difference between the values f or the vertical dimension at rest, ?OLO? and ?ELE? for both genders. There was a statistically significant correlation between the value for the vertical dimension at rest, ?OLO? and ?ELE?, for both groups of subjects. Conclusion. Determining the vertical dimension of occlusion requires 5.5 mm subtraction from the position of the mandible in pronunciation of the word ?OLO? or 7.5 mm in pronunciation of the word ?ELE?.

scholarly journals A multi-decadal history of biomass burning plume heights identified using aerosol index measurements

2010 ◽  
Vol 10 (1) ◽  
pp. 1-25 ◽  
Author(s):  
H. Guan ◽  
R. Esswein ◽  
J. Lopez ◽  
R. Bergstrom ◽  
A. Warnock ◽  
...  
Keyword(s):  
High Altitude ◽  
Biomass Burning ◽  
Northeast Asia ◽  
Time Interval ◽  
Fire Plume ◽  
Data Set ◽  
History Of ◽  
The Relationship ◽  
Aerosol Index

Abstract. We have quantified the relationship between Aerosol Index (AI) measurements and plume height for young biomass burning plumes using coincident OMI and CALIPSO measurements. This linear relationship allows the determination of high-altitude plumes wherever AI data are available, and it provides a data set for validating global fire plume injection heights in chemistry transport models. We find that all plumes detected from June 2006 to February 2009 with an AI value ≥9 are located at altitudes higher than 5 km. Older high-altitude plumes have lower AI values than young plumes at similar altitudes. We have examined available AI data from the OMI and TOMS instruments (1978–2009) and find that large AI plumes occur more frequently over North America than over Australia or Russia/Northeast Asia. According to the derived relationship, during this time interval, 181 plumes reached altitudes above 8 km. One hundred and thirty-two had injection heights ≥8 km but below 12 km, and 49 were lofted to 12 km or higher, including 14 plumes injected above 16 km.

Correlation of decentralization and economic growth in the regions of Russia

2020 ◽  
Vol 93 (4) ◽  
pp. 74-87
Author(s):  
N. Yu. Korotina ◽  
Keyword(s):  
Economic Growth ◽  
Federal State ◽  
Time Interval ◽  
Index Method ◽  
Regional Component ◽  
Regional Product ◽  
The Impact ◽  
The Relationship ◽  
Federal Center

The understanding the processes of decentralization of the economy in a federal state as one of the possible sources of economic development. This understanding requires the revision of the implications that the formation and implementation of a policy of relations between the federal center and the regions entails. The goal of our present research is to develop an approach that will help assess the impact of the nature of relations between the federal center and the regions on economic growth. The theoretical and methodological basis of this study is formed by a set of scientific concepts in the field of economic federalism and spatial analysis. Basing on the index method (by determining the values of decentralization of regional incomes and expenditures) and the implementation of positioning, an assessment was made of the relationship between decentralization and economic growth by such a resulting parameter of the development of the territory as the “growth rate of the gross regional product” and the parameter characterizing the development of federalism relations in the country as “the level of economic decentralization”. According of the calculations we prove there is a positive effect of decentralization processes on regional economic growth in the analyzed time interval. There is a greater impact on the processes of decentralization of the indicator of income decentralization compared to the decentralization of expenses. The results of our research can be used in the work of federal authorities in the formation of the regional component of federalism policy. It seems the proposed approach can basis of research related to the determination of the main directions of relations between regions and municipalities.

scholarly journals ANALYSIS OF NITRATE, PHOSPHATE AND CONCENTRATION ABILITY OF DIATOM (Bacillariophyta) PLANKTONIK IN THE SUMATERA PROVINCE OF WEST NIRWANA BEACH

2020 ◽  
Vol 2 (1) ◽  
pp. 21-28
Author(s):  
Theresia Tampubolon ◽  
Irvina Nurrachmi ◽  
Syahril Nedi
Keyword(s):  
Marine Biology ◽  
Diversity Index ◽  
Research Area ◽  
Sampling Location ◽  
Sample Bottle ◽  
Lugol Solution ◽  
Relationship Of ◽  
Biology Laboratory ◽  
The Relationship

This research was conducted in August 2018 with the aim to determine the concentration of nitrate and phosphate in the waters of Nirwana Beach, find out the type and abundance of diatoms found in the waters of Nirwana Beach, and determine the relationship of nitrate and phosphate concentrations to diatoms in Nirwana Beach waters. Determination of sampling location using purposive sampling, namely by taking into account the conditions and conditions of the research area. Sampling of nitrate and phosphate using a sample bottle measuring 100 ml then given preservatives and diatom samples using a bucket and filtered with plankton net no.25 and preserved with 4% lugol solution as much as 3-4 drops and analysis was carried out at the Marine Chemistry and Marine Biology Laboratory , Faculty of Fisheries and Marine Affairs, University of Riau. The results showed nitrate concentration in Nirwana Beach waters ranging from 0.5 mg / l - 0.3 mg / l. And phosphate concentration in the waters of Nirwana Beach ranges from 0.19 mg / l - 0.08 mg / l. In the coastal waters of Nirvana there are 16 species of diatoms found. The highest abundance of diatom species from all species found was Cosconidiscus sp with an average of 4263 ind / l per station. While the lowest abundance of species is Melosira sp, Thalassionema sp, Neodelphinies sp, Rhizossolenia sp and Cocconeis sp with an average of 73.5 ind / l. Diatom diversity index (H ') in Nirwana Beach waters is classified as moderate and community stability is categorized as moderate, there is no type that dominates the uniformity index (E) Nirwana Beach waters are still balanced and there is no competition for food or places. and phosphate with an abundance of diatoms which in this case means that the higher the concentration of nitrate and phosphate, the more abundance of diatoms.

scholarly journals Konsentrasi Nitrat Fosfat di Sungai Banjir Kanal Barat dan Sungai Silandak Semarang Concentration of Nitrates Phosphates in the Banjir Kanal Barat and Silandak Rivers in Semarang

2020 ◽  
Vol 8 (4) ◽  
pp. 316-320
Author(s):  
Arina Adriani ◽  
Churun Ain ◽  
Sigit Febrianto
Keyword(s):  
Land Use ◽  
River Flow ◽  
Nitrate Concentration ◽  
Sampling Location ◽  
Purposive Sampling ◽  
Average Value ◽  
Quality Of Water ◽  
The City

Sungai Banjir Kanal Barat dan Sungai Silandak merupakan sungai yang alirannya bermuara di Teluk Semarang. Lokasi sungai yang berada di tengah kota dan padatnya aktivitas manusia (pemukiman dan industri), akan berpengaruh terhadap kualitas air di sekitar aliran sungai. Tujuan dari penelitian ini adalah untuk mengetahui konsentrasi nitrat dan fosfat serta untuk mengetahui status trofik Sungai Banjir Kanal Barat dan Sungai Silandak. Penelitian ini dilaksanakan pada tanggal 15 Oktober – 1 November 2018. Metode yang digunakan dalam penelitian ini adalah metode deskriptif. Penentuan titik lokasi sampling menggunakan metode purposive sampling, dilakukan di 7 (tujuh) titik  dengan 2 (dua) kali pengulangan dari hulu sampai hilir dengan karakteristik penggunaan lahan berupa pemukiman, industri, perairan dan vegetasi. Data yang dianalisis adalah nitrat, fosfat, pH, oksigen terlarut, salinitas, kedalaman, arus, dan suhu. Nilai rata-rata konsentrasi nitrat di Sungai Banjir Kanal Barat yaitu 2,84 mg/l sedangkan fosfat yaitu 1,51 mg/l. Nilai rata-rata konsentrasi nitrat di Sungai Silandak yaitu 2,11 mg/l, sedangkan fosfat yaitu 1,39 mg/l. Sungai Banjir Kanal Barat dan Sungai Silandak termasuk dalam perairan mesotrofik berdasarkan konsentrasi nitrat, sedangkan berdasarkan konsentrasi fosfat dikategorikan dalam perairan eutrofik. Banjir Kanal Barat and Silandak Rivers are rivers whose flow empties into the Gulf of Semarang. The location of the river in the middle of the city and the density of human activities (settlements and industry), will affect the quality of water around the river flow. The purpose of this study was to determine land use around the river, to determine the concentration of nitrate and phosphate and to determine the trophic status of the Banjir Kanal Barat and Silandak Rivers. This research was conducted on 15 October - 1 November 2018. The method used in this study was descriptive method. Determination of sampling location using purposive sampling method, carried out in 7 (seven) points with 2 (two) repetitions from upstream to downstream with land use characteristics in the form of settlements, industries, waters and vegetation. Data analyzed were nitrate, phosphate, pH, DO, salinity, depth, current, and temperature. The average value of nitrate concentration in the Banjir Kanal Barat River is 2.84 mg/l while phosphate is 1.51 mg/l. The average value of nitrate concentration in Silandak River is 2.11 mg/l, while phosphate is 1.39 mg/l. The Banjir Kanal Barat River and Silandak River are included in the mesotrophic waters based on nitrate concentration, while based on phosphate concentration are categorized in eutrophic waters. 

The relationship between in vitro digestible cell wall and the cell-wall content of forage

1973 ◽  
Vol 81 (3) ◽  
pp. 533-536 ◽  
Author(s):  
K. W. Moir
Keyword(s):  
Cell Wall ◽  
Organic Matter ◽  
Panicum Maximum ◽  
Average Value ◽  
Whole Plant ◽  
Whole Plants ◽  
The Relationship

SUMMARYIn oven-dried whole plants from three regrowths of four varieties of Panicum maximum, leaf and stem of normal and stunted oats at three stages of first growth, leaf and stem of rape and the whole plant of millet, cell wall ranged from 14 to 77% of the organic matter. In vitro digestible cell wall ranged from 13 to 46% of the organic matter and was closely related to the cell wall (residual standard deviation, ± 2·5). In 16 legume hays the average in vitro digestible cell wall was 22·1% of the forage organic matter compared with an average value of 20·5% found previously from in vivo digestibility experiments with legumes. An unsatisfactory feature of the in vitro digestibility determination was that in silages and low quality grass hays, the digestible cell wall was low relative to known in vivo values for these forage types. The separate determinations of cell wall and in vitro digestible cell wall would add to the confidence that can be placed on estimates of in vivo digestibility from laboratory measurements. Often, the determination of cell-wall content is sufficient for this purpose.

scholarly journals The Effect On Mangrove Density With Sediment Rate in Coastal Pasar Banggi Of Rembang Regency

2018 ◽  
Vol 73 ◽  
pp. 04020
Author(s):  
M. Arief Rahman Halim ◽  
Yulizar Ihrami Rahmila ◽  
Fuad Muhammad ◽  
Yuanita Safitri
Keyword(s):  
Sedimentation Rate ◽  
Conservation Management ◽  
Wildlife Habitat ◽  
Growth Media ◽  
Mangrove Species ◽  
Average Value ◽  
Mangrove Ecosystems ◽  
Average Sedimentation Rate ◽  
The Relationship ◽  
Mangrove Conservation

The existence of mangrove ecosystems in coastal Pasar Banggi serves to protect the shoreline and wildlife habitat as fishing for spawning, nursery, and feeding ground. In addition, mangrove ecosystems can also grab sediments through the root system forming new land. The formation of the new land can eventually be utilized for mangrove growth media either naturally or through the planting activities to support the sustainability of mangrove ecosystems. The method used is vegetation analysis and sediment trap. The results showed that the dominant mangrove species in Coastal Pasar Banggi Rembang were Rhizopora apiculata. The results showed the average value of the highest sedimentation rate at station A 291,479 gr/cm2/day with the lowest average mangrove density of 57822 ind/ha. The lowest average sedimentation rate at station B was 171,095 gr/cm2/day with the highest average mangrove density of 105311 ind/ha, mean medium sedimentation rate at station C was 219,461 gr/cm2/ day with average medium mangrove density of 888089 ind/ha. This research is expected to be an information material about the rate of sedimentation which will be expected as a mangrove conservation management. Based on the results of the research, the relationship between mangrove density and sedimentation rate resulted in negative correlation (-1) meaning that the lower of mangrove density, the higher the sedimentation rate and the higher the mangrove density, the lower the sedimentation rate

scholarly journals Sistem Pendukung Keputusan Siswa Berprestasi SMA Dwijendra Denpasar dengan Metode ANP & Topsis

Jurnal INFORM ◽  
2017 ◽  
Vol 2 (2) ◽  
Author(s):  
A.A.A Putri Ardyanti ◽  
Nyoman Purnama ◽  
Ni Luh Nyajentari
Keyword(s):  
Student Achievement ◽  
Teaching Techniques ◽  
Average Value ◽  
The Many ◽  
The Right ◽  
The Guardian ◽  
The Relationship ◽  
Manual Calculation ◽  
Selection Of

Realizing the competitive school, grade and achievement is one of the mission and vision that should be applied in schools, especially in the person of the student. To realize the desire that every school needs to evaluate, improve further the service good about teaching techniques, assessment, quality assurance in order to make the school about the competitive, quality and achievement. In this case homeroom faced with a problem in the quality assessment of each student according to the desired criteria of the school. Guardian Class and a burden for the many choices in deciding which is more priority and should be compared so that can not be timely in its completion. Guardian Class here to vote counting and determine their own rank 1 to 10 both for class XI IPA U1 and U2 in high school Dwijendra Denpasar. Determination of students can be categorized as cases of multiple criteria because there are several factors that lead to various alternative options with the values are different, so we need a technology determining student achievement by using ANP and combined with TOPSIS to help the Guardian Class manage ratings in order to take decisions appropriately. In the selection of outstanding students ANP implementation of the method used to determine the effect of the relationship between the criteria of independence while TOPSIS method is used to determine perengkingan in student achievement in each class. The selected outstanding students here are students assessed on three criteria, namely the assessment of knowledge, skills, and attitudes. The average value obtained by the students are very influential in determining student achievement. Manual calculations (regular) can be used if students get the average value in each of the same criteria, but if the average value is different then the manual calculation is not the right way diguankan to determine student achievement, because it will produce accounts that are not consistent in determining student achievement.

Thromboplastin Related Differences in the Determination of International Normalised Ratio: A Cause for Concern?

1994 ◽  
Vol 72 (03) ◽  
pp. 426-429 ◽  
Author(s):  
S Kitchen ◽  
I D Walker ◽  
T A L Woods ◽  
F E Preston
Keyword(s):  
Patient Management ◽  
External Quality Assessment ◽  
Oral Anticoagulant Therapy ◽  
Warfarin Dosage ◽  
External Quality ◽  
External Quality Assessment Scheme ◽  
International Normalised Ratio ◽  
The Uk ◽  
The Relationship

SummaryWhen the International Normalised Ratio (INR) is used for control of oral anticoagulant therapy the same result should be obtained irrespective of the laboratory reagent used. However, in the UK National External Quality Assessment Scheme (NEQAS) for Blood Coagulation INRs determined using different reagents have been significantly different.For 18 NEQAS samples Manchester Reagent (MR) was associated with significantly lower INRs than those obtained using Diagen Activated (DA, p = 0.0004) or Instrumentation Laboratory PT-Fib HS (IL, p = 0.0001). Mean INRs for this group were 3.15, 3.61, and 3.65 for MR, DA, and IL respectively. For 61 fresh samples from warfarin-ised patients with INRs of greater than 3.0 the relationship between thromboplastins in respect of INR was similar to that observed for NEQAS data. Thus INRs obtained with MR were significantly lower than with DA or IL (p <0.0001). Mean INRs for this group were 4.01, 4.40, and 4.59 for MR, DA, and IL respectively.We conclude that the differences between INRs measured with the thromboplastins studied here are sufficiently great to influence patient management through warfarin dosage schedules, particularly in the upper therapeutic range of INR. There is clearly a need to address the issues responsible for the observed discrepancies.

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