Karakteristik Fisik, Kimia, Dan Biologi Tempat Perindukan Potensial Larva Anopheles Sp. Dan Indeks Habitat Di Desa Sukamaju Kecamatan Punduh Pidada Kabupaten Pesawaran

2021 ◽  
Vol 1 (2) ◽  
pp. 122-133
Author(s):  
Akmal Taher ◽  
Tusy Triwahyuni ◽  
Ismalia Husna ◽  
Devita Febriani
Keyword(s):  
Water Depth ◽  
Sampling Site ◽  
Physical Characteristics ◽  
Biological Characteristics ◽  
Water Salinity ◽  
Chemical Characteristics ◽  
Cross Sectional ◽  
Physical Chemical ◽  
Average Water ◽  
Breeding Place

ABSTRACT: PHYSICAL, CHEMICAL, AND BIOLOGICAL CHARACTERISTICS OF POTENTIAL FARMING PLACE OF LARVA Anopheles sp. AND HABITAT INDEX IN SUKAMAJU VILLAGE DISTRICT PUNDUH PIDADA PESAWARAN DISTRICT Background:  Malaria is an infectious disease transmitted through mosquitoes and has become a health problem both in the world and Indonesia especially in Lampung. The population of the malaria vector is strongly influenced by the location of the breeding place. Purpose: Knowing the Physical, Chemical, and Biological Characteristics of Potential Breeding Places for Anopheles Sp. and Habitat Index in Sukamaju Village, Punduh District, Pesawaran Regency, Lampung Province, 2020. Methods: This was a descriptive study with a cross-sectional study research design. The physical characteristics have done by measuring temperature and water depth, the chemical characteristics by measuring pH and water salinity, and the biological characteristics by looking at organisms found at the sampling site. As well as calculating the habitat index. Results: The physical characteristics of the brooding sites have an average water temperature of 31.33 ° C and an average water depth of 25.840 cm. Chemical characteristics of brooding sites mean 2.4280 ‰ of water salinity, and most of the acidity (pH) of water is acidic. The biological characteristics of breeding sites are mostly water and plant predators. Habitat index obtained a value of 1%.Conclusion: That these places have the potential to transmit malaria. Keywords: Anopheles sp., breeding place, malaria   INTISARI: KARAKTERISTIK FISIK, KIMIA, DAN BIOLOGI TEMPAT PERINDUKAN POTENSIAL LARVA Anopheles sp. DAN INDEKS HABITAT DI DESA SUKAMAJU  KECAMATAN PUNDUH PIDADA KABUPATEN PESAWARAN  Latar Belakang : Malaria merupakan penyakit infeksi yang ditularkan melalui nyamuk dan telah menjadi masalah kesehatan baik di dunia maupun di Indonesia khususnya di daerah Lampung. Populasi vektor malaria sangat dipengaruhi oleh lokasi tempat perindukannya. Tujuan : Mengetahui Karakteristik Fisik, Kimia, dan Biologi Tempat Perindukan Potensial Nyamuk Anopheles Sp. dan Indeks Habitat Di Desa Sukamaju Kecamatan Punduh Kabupaten Pesawaran Provinsi Lampung Tahun 2020. Metode : Jenis penelitian ini merupakan penelitian deskriptif dengan pendekatan cross sectional. Karakteristik fisik dilakukan dengan mekukur suhu dan kedalaman air, karakteristik kimia dengan mengukur pH dan salinitas air, dan karakteristik biologi dengan melihat organisme yang ditemukan di tempat pengambilan sampel. Serta melakukan penghitungan indeks habitat. Hasil : Karakteristik fisik pada tempat perindukan rata-rata suhu air 31,33°C, dan rata-rata kedalaman air 25,840 cm. Karakteristik Kimia pada tempat perindukan rata-rata salinitas air 2,4280‰, dan sebagian besar derajat keasaman (pH) air adalah asam. Karakteristik Biologi pada tempat perindukan sebagian besar terdapat predator air dan tumbuhan. Indeks habitat didapatkan nilai 1%. Kesimpulan : Bahwa tempat-tempat tersebut berpotensi untuk penularan penyakit malaria. Kata Kunci : Anopheles sp., malaria, tempat perindukan

A Study of the Chemical and Physical Characteristics of the Soils from the South of Piauí for Soil-Cement Brick Production

2016 ◽  
Vol 869 ◽  
pp. 112-115 ◽  
Author(s):  
Francisca Pereira de Araújo ◽  
Edson Cavalcanti Silva Filho ◽  
João Sammy Nery de Souza ◽  
Josy Anteveli Osajima ◽  
Marcelo Barbosa Furtini
Keyword(s):  
Organic Matter ◽  
Particle Density ◽  
Environmentally Friendly ◽  
Physical Characteristics ◽  
Chemical Characteristics ◽  
The South ◽  
Physical Chemical ◽  
Soil Cement ◽  
Made In

Soil-cement bricks are good examples of environmentally friendly products. This brick is the combination of soil with compacted cement with no combustion in its production. In this work the physical chemical characteristics of the soil from Piaui for producing this material were investigated. Samples of the soil were collected in three potteries from the county of Bom Jesus and pH analysis were carried out, as well as the rate of organic matter, texture, particle density, limits of liquidity and plasticity rates. The results have shown that the soils have acid tones (pH 5,49 a 6,11), which can be neutralized by adding cement, and organic matter percentages up to 1%. The samples have shown predominantly clay-rich textures with adequate plasticity limits, however, values of liquidity limits and particle density above recommended. Altogether, these soils tend to present viability concerning soil-cement brick production, provided that corrections with additives are made in order to minimize this effect.

scholarly journals KARAKTERISTIK MUTU IKAN BLACK MARLIN LOIN BEKU DI PT. SINAR SEJAHTERA SENTOSA JAKARTA

MARLIN ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 17
Author(s):  
Nusaibah - Nusaibah ◽  
Deden Yusman Maulid ◽  
Alkana Yusuf Fiyari ◽  
Kartika Kartika
Keyword(s):  
Economic Value ◽  
Quality Characteristics ◽  
Physical Characteristics ◽  
Biological Characteristics ◽  
Plate Count ◽  
Chemical Characteristics ◽  
Foreign Markets ◽  
Pelagic Species ◽  
Organoleptic Test ◽  
Total Plate Count

Ikan Black marlin merupakan ikan pelagis yang mempunyai nilai ekonomis penting, oleh karena itu produk olahannya yaitu Black marlin loin beku merupakan salah satu komoditi perikanan yang banyak disukai oleh pasar mancanegara. Sehingga Black marlin loin beku harus memiliki mutu yang baik untuk layak dipasarkan. Tujuan dari penelitian ini adalah untuk mengetahui dan menganalisis karakteristik mutu ikan Black marlin beku yang diproduksi di PT. Sinar Sejahtera Sentosa. Karakteristik yang diuji meliputi karakteristik fisik menggunakan uji organoleptik, kemudian karakteristik kimiawi dengan uji histamin dan karakteristik biologi dengan melakukan uji TPC (Total Plate Count) dan hasilnya kemudian dianalisis menggunakan standar SNI Marlin Loin Beku. Hasil yang diperoleh dari pengujian organoleptik pada black marlin loin beku yaitu 7, sedangkan hasil yang diperoleh dari uji histamin sebesar 1 mg/kg dan uji TPC yaitu 370 coloni/g. Dari hasil tersebut dapat disimpulkan bahwa Ikan Black Marlin Loin beku telah memenuhi standar SNI Marlin Loin Beku, ikan tersebut mempunyai mutu yang baik sehingga aman untuk dikonsumsi dan layak untuk dipasarkan. Black marlin is a pelagic species that has high economic value, therefore the processed product frozen loin black marlin, is one of the fisheries commodities that are preferred by foreign markets. Therefore, frozen black marlin loin must have good quality to be marketable. The aim of this research was to study and analyze the quality characteristics of frozen black marlin loin at PT. Sinar Sejahtera Sentosa. Characteristics test were done by doing physical characteristics using organoleptic test, then chemical characteristics test by doing histamine test and biological characteristics test by doing TPC (Total Plate Count) test and the results were analyzed then with standard SNI Frozen Loin Marlin. The result of organoleptic test on frozen loin black marlin were 7, while the results of histamine test were 1 mg/kg and the TPC test 370 coloni/g. From these results it can be concluded that frozen loin black marlin has fulfilled SNI standards, this fish has a good quality so safe for consumption and marketable. 

scholarly journals Karakteristik Sosis dengan Fortifikasi β-Caroten dari Labu Kuning (Cucurbita moschata) (Sausage Characteristics as Affected by β-Caroten Fortification of Pumpkin (Cucurbita moschata))

2012 ◽  
Vol 33 (2) ◽  
pp. 111
Author(s):  
Agus Hadi Prayitno ◽  
Firdha Miskiyah ◽  
Afina Viyunnur Rachmawati ◽  
Tombak Mahesa Baghaskoro ◽  
Bekti Putra Gunawan ◽  
...  
Keyword(s):  
Ph Value ◽  
Physical Characteristics ◽  
Sensory Characteristics ◽  
Chemical Characteristics ◽  
Cucurbita Moschata ◽  
Physical Chemical ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Physical And Chemical ◽  
Water Holding

<p>The objectives of the experiment were to evaluate physical, chemical, and sensory characteristics of sausage by using fortification with β-caroten of pumpkin. There were five treatments of fortification with β-caroten of pumpkin as<br />the filler substitutions on sausage processing. The treatments were: 0% (control), 25, 50, 75, and 100% of the filler. There were five replications in each treatment. The data of physical and chemical characteristics from the completely randomized design were analysed by analysis of variance. The data of sensory characteristics were analysed by the analysis of non parametric test of Hedonic Kruskal-Wallis. The results showed that sausage fortified with β-caroten of pumpkin as the filler substitutions up to 100% level on sausage processing affected significantly (P&lt;0.01) on physical characteristics of sausage (decreased water-holding capacity, increased tenderness and it did not affect pH value of sausage), chemical characteristics of sausage (decreased moisture, increased protein, fiber, β-caroten, and it did not affect the fat content of sausage), and sensory characteristics of sausage (increased taste, decreased color, aroma, texture, touchness, and acceptability of sausage).</p><p>(Key words: Sausage, Pumpkin, β-caroten, Physical characteristics, Chemical, Sensory)<br /><br /></p>

scholarly journals Error analysis of hydraulic radius evaluation in hydraulic calculation

2021 ◽  
Vol 260 ◽  
pp. 03016
Author(s):  
Ye Yin ◽  
Dangwei Wang ◽  
Hantao Wang ◽  
Anjun Deng ◽  
Shenghang Feng
Keyword(s):  
Cross Section ◽  
Water Depth ◽  
Hydraulic Calculation ◽  
Hydraulic Radius ◽  
Rectangular Section ◽  
Cross Sectional ◽  
Water Level Changes ◽  
Average Water ◽  
Cross Sectional Average ◽  
Natural Rivers

Hydraulic radius is an important parameter in hydraulic calculation. It is often deemed that hydraulic radius can be replaced by the cross-sectional average water depth when the width to depth ratio (B/H) is greater than a certain value in traditional. Based on the various artificial cross-section and natural ones, value-taking errors of hydraulic radius are studied in this paper. The results show that it is feasible to adopt the average water depth as the hydraulic radius when B/H of rectangular section is larger than 40 or B/H of isosceles triangular section is larger than 12. But for natural river, B/H is different when water level changes and there is no single-valued corresponding relationship between relative error and B/H. Therefore, we advise that hydraulic radius could not be replaced by other variables in hydraulic calculation of natural rivers.

scholarly journals Two Calving Laws for Grounded Iceberg-Calving Glaciers (Abstract only)

1983 ◽  
Vol 4 ◽  
pp. 295 ◽  
Author(s):  
C. S. Brown ◽  
W. G. Sikonia ◽  
Austin Post ◽  
L. A. Rasmussen ◽  
M. F. Meier
Keyword(s):  
Water Depth ◽  
Variance Reduction ◽  
Coefficient Of Determination ◽  
Time Intervals ◽  
Cross Sectional ◽  
Glacial Stream ◽  
Iceberg Calving ◽  
Average Water ◽  
Image Position ◽  
Best Fit

Prediction of the future retreat of Columbia Glacier, Alaska, required a calving law for the boundary condition at the terminus. Qualitative observations on the variations of all major iceberg-calving glaciers of Alaska suggest that calving is high whenever glaciers terminate in deep water, and greatly reduced whenever they terminate in shallow water. Calving relations were investigated based on calculations of calving speed, defined as the volume rate of iceberg discharge from the terminus divided by the cross-sectional area of the terminus. The calving speed was determined for 12 glaciers for which measurements of glacier speed, advance and retreat rates, and other variables were obtained. To extend the range of data, four additional periods of rapid retreat were examined. Values for the terminus characteristics of water depth, cliff height, and thickness of the terminus, averaged over the width of the glacier and over a year, were then examined in relation to the calculated speeds of calving. A statistical analysis to determine the form and coefficients of an empirical calving relation that approximates the data shows that calving speed is best fitted by a simple proportionality to average water depth at the terminus: 1 where v c is the calving speed and h w the water depth, both averaged over the width and over a year, and c a constant of proportionality. This gives a variance reduction fraction (similar to the coefficient of determination r2) of 0.90. To investigate seasonal changes in calving, data based on shorter time intervals were obtained at the head of embayments from Columbia Glacier. At intervals of approximately two months, the following expression fits intra-yearly calving at Columbia Glacier: 2 where D is the meltwater discharge from the glacier, hj is the height of the ice column unsupported by water buoyancy, a, b, c are constants, and vc and hu are evaluated at the embayment head. D was determined by correlation with a nearby glacial stream, and hu = h _ hw PW/PJ, where h is glacier thickness and pi and pw the densities of ice and water. Best-fit values of b and c are approximately 0.5 and -2, respectively. This yields a variance reduction fraction r2 of 0.83. Equation (2) does not fit data averaged over a year and over the width of the glacier and Equation (1) does not fit data obtained over shorter periods at the head of the embayment. Although the two equations are different in form, for similar or average values of D and h - hw (ice-cliff height), they give approximately similar results over the present range of the geometry of the terminus of Columbia Glacier. Whether this will be true after rapid retreat begins remains to be seen.

scholarly journals Two Calving Laws for Grounded Iceberg-Calving Glaciers (Abstract only)

1983 ◽  
Vol 4 ◽  
pp. 295-295 ◽  
Author(s):  
C. S. Brown ◽  
W. G. Sikonia ◽  
Austin Post ◽  
L. A. Rasmussen ◽  
M. F. Meier
Keyword(s):  
Water Depth ◽  
Variance Reduction ◽  
Coefficient Of Determination ◽  
Time Intervals ◽  
Cross Sectional ◽  
Glacial Stream ◽  
Iceberg Calving ◽  
Average Water ◽  
Image Position ◽  
Best Fit

Prediction of the future retreat of Columbia Glacier, Alaska, required a calving law for the boundary condition at the terminus. Qualitative observations on the variations of all major iceberg-calving glaciers of Alaska suggest that calving is high whenever glaciers terminate in deep water, and greatly reduced whenever they terminate in shallow water. Calving relations were investigated based on calculations of calving speed, defined as the volume rate of iceberg discharge from the terminus divided by the cross-sectional area of the terminus. The calving speed was determined for 12 glaciers for which measurements of glacier speed, advance and retreat rates, and other variables were obtained. To extend the range of data, four additional periods of rapid retreat were examined. Values for the terminus characteristics of water depth, cliff height, and thickness of the terminus, averaged over the width of the glacier and over a year, were then examined in relation to the calculated speeds of calving. A statistical analysis to determine the form and coefficients of an empirical calving relation that approximates the data shows that calving speed is best fitted by a simple proportionality to average water depth at the terminus: 1 where vc is the calving speed and hw the water depth, both averaged over the width and over a year, and c a constant of proportionality. This gives a variance reduction fraction (similar to the coefficient of determination r2) of 0.90.To investigate seasonal changes in calving, data based on shorter time intervals were obtained at the head of embayments from Columbia Glacier. At intervals of approximately two months, the following expression fits intra-yearly calving at Columbia Glacier: 2 where D is the meltwater discharge from the glacier, hj is the height of the ice column unsupported by water buoyancy, a, b, c are constants, and vc and hu are evaluated at the embayment head. D was determined by correlation with a nearby glacial stream, and hu = h _ hw PW/PJ, where h is glacier thickness and pi and pw the densities of ice and water. Best-fit values of b and c are approximately 0.5 and -2, respectively. This yields a variance reduction fraction r2 of 0.83.Equation (2) does not fit data averaged over a year and over the width of the glacier and Equation (1) does not fit data obtained over shorter periods at the head of the embayment. Although the two equations are different in form, for similar or average values of D and h - hw (ice-cliff height), they give approximately similar results over the present range of the geometry of the terminus of Columbia Glacier. Whether this will be true after rapid retreat begins remains to be seen.

scholarly journals Analisis Spasial Karakteristik Habitat Perkembangbiakan Anopheles Spp di Desa Lifuleo Kecamatan Kupang Barat

2019 ◽  
Vol 47 (3) ◽  
pp. 207-216
Author(s):  
Hanani Melangwala Laumalay ◽  
Tri Baskoro Tunggul Satoto ◽  
Anis Fuad
Keyword(s):  
Brackish Water ◽  
Water Salinity ◽  
Spatial Error Model ◽  
Anopheles Subpictus ◽  
Cross Sectional ◽  
Spatial Error ◽  
Factors Associated ◽  
Anopheles Mosquitoes ◽  
Anopheles Barbirostris ◽  
Breeding Place

Anopheles barbirostris and Anopheles subpictus are the primary vectors of malaria in East Nusa Tenggara. Anopheles mosquitoes generally breed at similar environment, including water streams, irrigation passages, water containers, paddy fields, impermanent ponds, water puddles, marsh, and brackish water. Modelling and spatial analysis play a role in identifying factors associated with potential breeding places for Anopheles mosquitoes, hence comprehension of breeding place characteristics and effective malaria control. The cross-sectional study used an observational-analytic approach. Study samples were identified larvae and breeding places of Anopheles spp. in Lifuleo village in West Kupang. We measured water salinity and pH, and we recorded coordinates of breeding places. Data analysis was performed by using Moran I index and spatial error model to identify factors associated with potential breeding places for Anopheles mosquitoes. Anopheles species found were An. barbirostris, An. subpictus, An. vagus, An. vagus var limosus, and An. indefinitus. All identified Anopheles larvae were found in brackish water, and in breeding places with high water salinity, with An. subpictus being able to survive the highest salinity (48‰). Univariate analysis demonstrated Io value of 0.00926, coefficient constant of 0.693868, and probability of 0.02252. The presence of Anopheles spp. was associated with breeding place habitat, daytime feeding, and presence of vegetations surrounding breeding places. Keywords: Anopheles spp, Lifuleo village, habitat characteristics, spatial. Abstrak Anopheles barbirostris dan Anopheles subpictus merupakan vektor primer malaria di Provinsi Nusa Tenggara Timur. Spesies Anopheles mempunyai habitat perkembangbiakan yang tidak sama yaitu aliran air, batas tangki, saluran irigiasi, sawah, kolam sementara, genangan air dekat pantai, genangan air di sungai, mata air, kolam ikan terlantar, rawa dan genangan air payau. Pemodelan dan analisis spasial dapat menjelaskan faktor-faktor yang memengaruhi habitat perkembangbiakan potensial bagi jentik Anopheles spp. Pengendalian malaria akan efektif apabila pengetahuan tentang karakteristik habitat perkembangbiakan dipelajari secara komprehensif. Metode penelitian menggunakan observasional analitik dengan pendekatan cross sectional. Sampel penelitian adalah seluruh habitat perkembangbiakan dan jentik Anopheles spp di Desa Lifuleo, Kecamatan Kupang Barat. Jentik diambil menggunakan pipet, kadar garam diukur menggunakan refractometer, pH diukur menggunakan pH meter dan koordinat diambil menggunakan aplikasi Avenza Maps yang terinstal pada Hand Phone android. Analisis data menggunakan Indeks Moran I dan Spatial Error Model untuk mencari faktor-faktor yang memengaruhi keberadaan jentik Anopheles spp. Spesies Anopheles yang ditemukan diantaranya; An. barbirostris, An. subpictus, An. vagus, An. vagus var limosus, dan An. indefinitus. Seluruh spesies Anopheles hidup pada habitat yang mengandung kadar garam tetapi An. subpictus mampu beradaptasi pada kadar garam tertinggi (48‰). Analisis univariat diperoleh Io sebesar 0.00926. Nilai Coefficient Constant sebesar 0,693868 dengan probability sebesar 0,02252. Spesies Anopheles yang hidup pada air payau yaitu An. barbirostris, An. subpictus, An. indefinitus, An. vagus, An. vagus varietas limosus. Keberadaan jentik Anopheles spp dipengaruhi oleh tipe habitat perkembangbiakan, Anopheles mengisap siang hari, dan adanya tanaman di habitat perkembangbiakan. Kata kunci: Anopheles spp, Desa Lifuleo, karakteristik habitat, spasial

Recent trends in nanozymes design: from materials and structures to environmental applications

2021 ◽  
Author(s):  
Camilo A S Ballesteros ◽  
Luiza Mercante ◽  
Augusto Alvarenga ◽  
Murilo Henrique Moreira Facure ◽  
Rodrigo Schneider ◽  
...  
Keyword(s):  
Environmental Applications ◽  
Chemical Characteristics ◽  
Physical Chemical ◽  
Recent Advances ◽  
Technological Advances ◽  
Recent Trends

A large variety of engineered nanostructures possessing enzyme-like activities have been proposed recently, which unique physical-chemical characteristics enable remarkable technological advances. In this review, we survey recent advances on nanozymes...

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