bluuebunny/crossref_metadata_2025 huggingface dataset:
RESPON PERTUMBUHAN STEK LADA (Pipper nigrum L) PADA BERBAGAI KONSENTRASI PUPUK ORGANIK CAIR DAN WAKTU PEMUPUKAN
Authors: Mangiring Windu , Yatmin Yatmin , Krisnarini Krisnarini
Published: September 2022

Liquid organic fertilizer (POC) is a fertilizer that is applied to the leaves. The advantage of providing fertilizer through the leaves in a way that is more easily absorbed by plants, both macro, and micronutrient. The objectives of this research were conducted to 1) effect of the best POC concentration on the growth of pepper seeds; 2) the best time to fertilizer the pepper seedlings; and 3) the interaction between POC concentration and fertilization time on the growth of pepper seeds. This study used a Randomized Complete Block Design (RCBD) and was arranged in a factorial consisting of 2 factors in 3 replications. The first factor is the provision of liquid organic fertilizer (k) which consists of 3 levels (k1=5 cc/L water, k2=10 cc/L water, k3=15 cc/L water). The second factor is the time of fertilization (f) which consists of 3 levels, (f1=once every 5 days, f2=once every 10 days, f3=15 days). The data obtained were tested for analysis of variance followed with the least significant difference test (LSD) at the 5% level. The results showed that the concentration of POC was significant to the growth of pepper seeds, which was shown in the percentage of growth, root length, shoot dry weight, and shoot ratio. The best POC concentration is 15 cc/L water. The time of POC fertilization did not significantly affect the growth of pepper seeds. There was no interaction between POC concentration and fertilization time for pepper seedling growth for all variables.
EFEKTIVITAS METODE COVERING DALAM PENGELOLAN AIR ASAM TAMBANG DI PT. BINUANG MITRA BERSAMA BLOK DUA, KABUPATEN TAPIN, KALIMANTAN SELATAN
Authors: Abdi Mukhlis , Mahyudin Idiannor , Yusran Fadly H , Hidayat Achmad Syamsu
Published: September 2022

The formation of AMW is basically unavoidable in mining activities, AMW can be formed in pit and disposal area that are contaminated with potential acid forming material (PAF). The magnitude of the potential impact that AMW can have on mining activities certainly encourages every business actor to conduct a study on various preventive measures that are effectively implemented in AMW management, one of which is covering method. This thesis research aims to analyze the preventive covering method in the management of AMW and its effectiveness in meeting quality standards of liquid waste in coal mining activities. The Object of research is surface water that is in contact with covering treatment area (soil) which is also given additional treatment by planting cover crops and pioneer plants at OPD Sitarum. Surface water quality was tested in the laboratory with reference to BMLC standard of South Kalimantan Governor Regulation Number 36 of 2008. The results of the laboratory tests were then calculated for effectiveness and proved statistical analysis using normality test, homogeneity test, CRD test and DMRT to be able to conclude the effect of covering treatment in the management of AMW. The results showed that the application of covering method in OPD Sitarum was able to have a positive and significant effect on improving surface water quality. Where based on the results of laboratory tests, the SA4 and SA5 treatments have met the BMLC standard of the South Kalimantan Governor Regulation Number 36 of 2008. The laboratory results are strengthened by statistical data which shows that all treatment data are normally distributed and homogeneous, the results of CRD and DMRT analysis show the parameters of pH, TSS, and total-Fe was significantly different between SA2, SA3, SA4, and SA5 treatments against SA1 (control). Meanwhile, total-Mn parameter stated that SA2 and SA3 were not significantly different from the control, SA4 and SA5 were significantly different from the control. And for Cadmium (Cd) parameter, all treatments (SA2, SA3, SA4, and SA5) were not significantly different from the control. The conclusion of this research, the covering method applied in OPD Sitarum is considered effective in the management of AMW in a preventive manner. This is proven in SA4 treatment (covering + cover crop + Pioneer 1-2 years), where the results of the surface water quality test have met the BMLC standards of the South Kalimantan Governor Regulation Number 36 of 2008 with values: pH 6.95; TSS 159 mg L -1 ; total-Fe 1.93 mg L-1 ; total-Mn 0.031 mg L-1 ; and Cd 0.0045 mg L-1 . And the best covering treatment and effectiveness were found in SA5 treatment (covering + cover crop + 3-4 years pioneer plant) with values: pH 6.67; TSS 76.5 mg L-1 (97.22%); totalFe 1.13 mg L-1 (88.71%); total-Mn 0.019 mg L-1 (87.58%); and Cd 0.0058 mg L-1 (8.00%).
PERANCANGAN ALAT PIROLISIS PORTABLE UNTUK PEMBUATAN ASAP CAIR DARI LIMBAH PELEPAH KELAPA SAWIT
Authors: Lukmana Mila , Alexander Baimy , Iswahyudi Herry
Published: September 2022

Solid waste from oil palm plantations and industries generally contains high organic matter so that it is environmentally possible. The pyrolysis technique is currently an effective technology in the handling of palm oil waste because in the process a biochar product is produced, immediately liquid which has high heat and can be used in agriculture. Generally, pyrolysis equipment has a large size with a large capacity. In addition, controlled pyrolysis is usually found in pilot-scale or relatively large dimensions for industrial-scale that have been assembled so that they are not easy to carry and move. The purpose of this study is to design a portable pyrolysis equipment that is easy to use and move to handle palm oil solid waste. The stages of the research carried out were the manufacture of a pyrolysis device and the testing stage of the tool. Testing the pyrolysis tool using raw material  from palm oil midrib-leaf waste. Tool testing is carried out to determine whether the tool works well, to determine the yield (%) produced and the working capacity of the tool (Kg/Hour). The results of this study are the stages of the process of making a portable pyrolysis tool including making reactors, making condensers, installation processes and automation of tools with control panels, making tool tables, and assembling tools. The test results show the yield of the tool is 39,1% and the working capacity of the tool is 0,24 kg/hour.
EVALUASI KESESUAIAN LAHAN KERING UNTUK TANAMAN PANGAN DI KECAMATAN KUBUTAMBAHAN KABUPATEN BULELENG
Authors: Sumarniasih Made Sri , Zebua Suarni Apriciila Benedigta , Antara Made
Published: September 2022

Dry land is land whose use for the development of agricultural commodities is limited, due to constraints on the availability of nutrients and water. The research objectives are: to identify the suitability of dry land for upland rice, corn and peanuts; identify limiting factors and improvement efforts to increase land productivity. The method used is a survey to determine the characteristics of the land in the field and to take soil samples that are analyzed in the laboratory. Determination of sample points based on the results of overlapping maps of soil types, land use maps, slope maps using QGIS 3.4, so that a homogeneous land unit map (SLH) is obtained, and 6 SLH is obtained as observation points. The results of field and laboratory data analysis were matched with the growing requirements for upland rice, corn and peanuts. The actual land suitability for upland rice, corn, and peanuts is classified as S2 (fairly suitable) to N (not suitable). The limiting factors are slope, erosion hazard, temperature, texture, rainfall, pH, N-total, P2O5, Cation Exchange Capacity, Base Saturation, availability of oxygen, and C-organic. Improvement efforts that must be done are making terraces, fertilizing urea, fertilizers containing phosphate, mulching using plant residues, giving organic matter, and improving drainage. After improving the limiting factors that can be improved, the potential land suitability classes for upland rice, corn and peanuts are S1 (very suitable), S2 (fairly suitable) and S3 (marginally appropriate).
EFEK POLUTAN TERHADAP FISIOLOGIS MAKROINVERTEBRATA SUNGAI : REVIEW
Authors: Kadim Miftahul Khair , Arfiati Diana
Published: September 2022

Contaminants sourced from numerous anthropogenic activities threaten a river ecosystem continuously. Anthropogenic modification alters water quality and affects aquatic biota life. Most of the pollution of the aquatic environment comes from chemical materials such as heavy metals, fertilizers, pesticides, and plastics. Heavy metals are the most dangerous pollutants as they are toxic, carcinogenic, biomagnifying, and bioaccumulative. Pollution affects the survival of aquatic biota, including macroinvertebrates. The sedentary nature of macrozoobenthos makes it to be contaminated with ease, which then affects its survival. Currently, the damaging impact of pollutants on the physiology of macrozoobenthos has been reported in several studies though it is still limited to the use of particular families. This review aims to inform the physiological impacts caused by pollutants on the macrozoobenthos community that lives along the river from upstream to downstream. Pollutants trigger disturbances in physiological functions, which are termed oxidative stress. Macrozoobenthos perform a series of mechanisms, including producing enzymes as the primary defense.
DAMPAK EKONOMI TUMPAHAN MINYAK DI TELUK BALIKPAPAN PADA PEMANFAATAN EKOSISTEM MANGROVE DI JENEBORA PENAJAM PASER UTARA
Authors: Oktawati Nurul Ovia , Fadilah Anisa Nur , Saleha Qoriah
Published: September 2022

Jenebora was one of the areas directly affected by the oil spill in the waters of Balikpapan Bay in 2018. It is estimated that almost 80% of the mangroves in the area were damaged. Oil spills into the sea have the potential to have a negative impact on the survival of the flora and fauna in it. This study aimed to measure the economic impact of the oil spill in Balikpapan Bay on the utilization and management of mangrove resources in Jenebora Village, Penajam Paser Utara. Economic valuation is a form of analytical approach used to assess the economic impact of mangrove damage. The results showed that the damage caused by the oil spill on the mangrove ecosystem was estimated a Rp. 41,082,027,068/year or Rp. 2,334,206,083ha/year. This value is estimated from the loss of fish resources that have economic value, as well as the damage to the function of the mangrove ecosystem as archery abrasion, reducing pollution and producing carbon. The policy recommendations in this study are the need for actions and rules related to the management and control of marine pollution that are integrated with other regulations, the need for Pertamina to improve equipment maintenance and immediately carry out post-event environmental restoration and ensure the allocation of fishing areas for traditional fishermen and continuous assistance to environmental recovery.
PENDUGAAN TINGGI TANAMAN KAYU PUTIH (Melaleuca Cajuputi) UNTUK EVALUASI PERTUMBUHAN TANAMAN REHABILITASI DAS
Authors: Oktiawan Fandi , Arifin Yudi F. , Wahdah Raihani , Agusliani Erma
Published: September 2022

Watershed Rehabilitation activities are one of the efforts in carrying out soil and water conservation. Evaluation of plant growth Watershed rehabilitation needs to be carried out to determine the success of these activities. In a case study at the Gunung Batu block location, it was found that there was a positive and strong correlation between the variable height dimension increase and crown diameter increase in Kayu Putih (Melaleuca cajuputi) plants. The regression equation was built using the dimensional variables of Total Plant Height as a result of ground sampling and the diameter of the crown as a result of orthophoto drone interpretation. By using 4 regression equation models, it was concluded that the best coefficient of determination was generated from the exponential regression model with a value of = 0.96 with the equation y = 0.3016e1.3573x which was built using a height class of 20 cm. The accuracy test was carried out to see how far the standard deviation of the model was. Estimation of the height of 23 Kayu Putih (Melaleuca cajuputi) plants with a height range of 1.2 to 3.5 meters was carried out using 4 regression equation models, where the data were plant data that were not used in building 4 models. The best standard deviation value produced is 0.11 meters which is obtained from the range of plant heights from 1.2 to 1.8 meters using the exponential regression model equation.
STRATEGI PENGELOLAAN LIMBAH PADAT DALAM MENDUKUNG KEBERLANJUTAN GREEN CAMPUS: SEBUAH PENDEKATAN AHP
Authors: Rimantho Dino , Hidayah Nur Yulianti , Herzanita Ayu , Sandi Anggina
Published: September 2022

The purpose of this study is to find the most sustainable solid waste management scenario for universities. It is based on the Green Campus concept which aims to eliminate waste inefficiencies and use energy sources for ordinary electricity needs, as well as proper disposal management and efficient recycling programs. The Analytic Hierarchy Process approach is used in this study to produce strategic decisions in solid waste management. A pairwise comparison questionnaire was distributed to four experts from universities to give an assessment of the questionnaire. The results show that the alternative of recycling technology innovation is the choice of experts with a weight of 0.429 which is based on technology criteria with a weight of 0.477 and the sub-criteria of Perception and participation of campus residents with a weight of 0.509. Furthermore, the overall assessment of the experts has a consistency value below 0.1. This research could be a starting point in developing a Green Campus sustainability strategy through solid waste management.
STATUS MUTU AIR DAN BEBAN PENCEMARAN SUNGAI SAIL BAGIAN HILIR, KOTA PEKANBARU, PROVINSI RIAU PADA KONDISI PASANG SURUT
Authors: Yuliati Yuliati , Efawani Efawani , Fauzi Muhammad , Suryo Galeh
Published: September 2022

The Sail River is the position in the center of Pekanbaru City and is affected because of the tides. Urban pollution is a significant giver to the Sail River of water quality degradation. The study was conducted between June and August to assess estimation pollution load Sail River and pollution levels using the Pollution Index method. Water quality parameters measured are physical (temperature, TSS) and chemical (pH, dissolved oxygen, BOD, COD, Pb, oil and grease, nitrate, as well as phosphate). The results showed that the Sail River was classified as lightly polluted at high tide and low tide. The pollution index value at high tide is higher with a range of 3.65-3.92 than at low tide (2.93-3.39). TSS is the highest pollution load of the Sail River that a value of 1079.83 mg/second at high tide and 1075.29 mg/second at low tide. The lowest pollution load is oil and grease at low tide (0.47 mg/second). Thus, it is necessary to control the level of water pollution in the Sail River.
VARIASI PADAT PENEBARAN DAN PENGGUNAAN LARUTAN DAUN KETAPANG (Terminalia catappa L) TERHADAP PERTUMBUHAN BENIH IKAN NILA (Oreochromis niloticus)
Authors: Anugraheni Laini , Elrifadah Elrifadah , Kisworo Yulius
Published: September 2022

This study aimed to determine the effect of stocking density, the dose of ketapang leaf solution (Terminalia catappa L.) and the interaction between stocking density and dose of ketapang leaf solution (Terminalia catappa L.) on the growth of tilapia fish (Oreochromis niloticus). This research was conducted in July-August 2022 for 30 days, located on Jl RO Ulin Gang Sapta Warga Rt.07 Rw.02 Banjarbaru City. This study used a factorial completely randomized design method with 2 levels of Factor A (10 and 15 stocking densities) and 2 levels of Factor B (dose of ketapang leaf solution 2ml/l and 3 ml/l) with 3 repetitions (2x2x3). The treatments obtained were A1B1 (10 stocking density and 2ml/l ketapang leaf solution), A1B2 (10 stocking density and 3ml/l ketapang leaf solution), A2B1(15 stocking density and 2ml/l ketapang leaf solution dose). ) and A2B2 (stocking density of 15 individuals and the dose of ketapang leaf solution was 3ml/l). The fish used is tilapia seeds measuring 3-5 cm. In the results of the stocking density study, the dose of ketapang leaf solution had no significant effect on absolute growth and relative growth of tilapia fry. However, the interaction between stocking density and dose of ketapang leaf solution had a significant effect on the survival of tilapia.
LIKASI PUPUK ORGANIK CAIR FERMENTASI URINE KELINCI (POCFERUCI) TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN CABAI DI WILAYAH TUNGKARAN KABUPATEN HULU SUNGAI SELATAN
Authors: Santoso Untung , Biyatmoko Danang
Published: September 2022

Hulu Sungai Selatan Regency is an agricultural area where the distribution of the economic sector which is dominated by the agricultural sector accounts for 46,68% of the regional PAD. This makes HSS Regency has the potential to become an agropolitan area supported by agribusiness. The Tungkaran area of Ulin Village with the majority of the population as farmers is currently developing the main farming crop, namely rice. Meanwhile, on dry land (gardens) chili plants and other vegetables are planted. The application of fertilization is a very important factor so that the vegetative growth and productivity of chili plants can increase. The use of inorganic fertilizers, besides being expensive, also has an impact on the lower quality of land and its dependence is increasing over time. Therefore, the use of liquid organic fertilizer fermented rabbit urinee (POCFERUCI) is an alternative solution in overcoming problems in the use of inorganic fertilizers. POCFERUCI fertilization affected the growth and production of chili plants and a fertilizer dose of 10 ml plant-1 gave the best response to all parameters of chili plant growth and production.
ANALISIS INDEKS PEMBANGUNAN MANUSIA (IPM) DI NEGARA ASEAN
Authors: Nasruddin Nasruddin , Azizah Nor Aufa
Published: September 2022

Indeks Pembangunan Manusia merupakan indikator untuk mengukur mutu (derajat perkembangan manusia) berdasarkan hasil pembangunan ekonomi. Indeks Pembangunan Manusia atau pertama kali diperkenalkan oleh United Nation Development Programme pada tahun 1990. Berdasarkan penelitian mengenai analisis Indeks Pembangunan Manusia  di Negara ASEAN pada tahun 2020 dengan kriteria sangat tinggi Indeks Pembangunan Manusia ≥ 80 dimiliki oleh Malaysia, Brunei Darussalam dan Singapura. Disusul dengan Indonesia, Filipina, Thailand dan Vietnam yang masuk kriteria tinggi Indeks Pembangunan Manusia 70 – 79. Kondisi kriteria sedang Indeks Pembangunan Manusia 61 – 69 hanya dimiliki oleh Laos. Sedangkan dengan kriteria rendah Indeks Pembangunan Manusia ≤ 60 dimiliki oleh Kamboja. Memadukan kualitas sumber daya manusia penting untuk mengetahui faktor-faktor yang mempengaruhi nilai Indeks Pembangunan Manusia karena akan mempermudah suatu negara untuk meningkatkan nilai Indeks Pembangunan Manusia sehingga dapat mengurangi ketidakseimbangan antar negara di kawasan Asia Tenggara
MENINGKATKAN KARAKTER PEDULI LINGKUNGAN MELALUI PROGRAM ADIWIYATA PADA SISWA SEKOLAH DASAR
Authors: Jannah Fathul , Fahlevi Reja , Sari Raihanah , Radiansyah Radiansyah , Zefri Muhammad , Akbar Diky Raihan , Shofa Ghaitsa Zahira , Luthfia Ghina Alfina
Published: September 2022

Penelitian ini bertujuan untuk menganalisis implementasi program adiwiyata dalam meningkatkan karakter peduli lingkungan pada siswa di Sekolah Dasar Negeri Kertak Hanyar 1.1. Kabupaten Banjar. Pendekatan yang digunakan dalam penelitian ini adalah sebuah pendekatan penelitian kualitatif dengan metode deksriftif. Hasil yang ditimbulkan dari penelitian ini memaparkan bahwa karakter yang peduli terhadap lingkungan di sekolah yang telah terintegrasi dengan berbagai aspek program Adiwiyata ini. Diperlihatkannya Visi, misi dan tujuan dari sekolah mengenai keterkaitan dengan lingkungan, terintegrasinya kurikulum ini walau masih belum optimal pada berbagai mata pelajaran yang materinya terait dengan lingkungan, salah satunya adalah pramuka yang merupakan kegiatan ekstrakulikuler yang terkait dengan lingkungan, kemudian berpartisipasi dalam berbagai kegiatan yang berkaitan dengan kebersihan lingkungan sungai, dan juga sarana dan prasarana yang ramah lingkungan yang tersedia baik. Pada sekolah tersebut telah diimplementasikan dengan baik berbagai karakter yang peduli dengan lingkungan, tetapi masih perlu dioptimalisasikan terlebih dahulu dengan beragam nilai karakter yang peduli dengan lingkungan. Hal tersebut perlu dilakukan dari tingkat yang paling dasar sehingga dapat menumbuhkan serta menumbuhkan nilai karakter peduli lingkungan pada setiap peserta didik di sekolah. Pada sekolah tersebut telah diimplementasikan dengan baik berbagai karakter yang peduli dengan lingkungan, tetapi masih perlu dioptimalisasikan terlebih dahulu dengan beragam nilai karakter yang peduli dengan lingkungan. Hal tersebut perlu dilakukan dari tingkat yang paling dasar sehingga dapat menumbuhkan serta menumbuhkan nilai karakter peduli lingkungan pada setiap peserta didik di sekolah. Pada sekolah tersebut telah diimplementasikan dengan baik berbagai karakter yang peduli dengan lingkungan, tetapi masih perlu dioptimalisasikan terlebih dahulu dengan beragam nilai karakter yang peduli dengan lingkungan. Hal tersebut perlu dilakukan dari tingkat yang paling dasar sehingga dapat menumbuhkan serta menumbuhkan nilai karakter peduli lingkungan pada setiap peserta didik di sekolah.
KAJIAN TIPOLOGI PERUMAHAN MASYARAKAT BERPENGHASILAN RENDAH (MBR)
Authors: Rahman Fathur , Rahmatullah Ridho , Hadi Saufi , Nugroho Arif Rahman , Riadi Selamat
Published: September 2022

Pengadaan perumahan sangat diperlukan terutama di negara-negara dengan jumlah penduduk yang tinggi khsusnya Indonesia. Akan tetapi masalah ekonomi menjadi salah satu indikator penghambat pengadaan perumahan. Selanjutnya masyarakat berpenghasilan rendah adalah masyarakat yang mempunyai keterbatasan hunian sehingga perlu mendapat dukungan pemerintah untuk memperoleh rumah untuk dihuni. Undang-Undang Nomor 1 Tahun 2011 tentang perumahan dan kawasan pemukiman. Persoalan penyediaan perumahan masyarakat berpenghasilan rendah di kawasan perkotaan umumnya berkaitan dengan harga tanah yang sudah terlalu tinggi. Oleh karena itu, diperlukan peran pemerintah yang lebih besar dalam menjamin pemenuhan perumahan bagi seluruh kelompok masyarakat agar hak mereka sebagai warga Negara dapat terpenuhi untuk memenuhi kehidupan yang layak. Perumahan masyarakat berpenghasilan rendah memiliki beberapa kondisi hunian yang bervariasi menyusuaikan dengan tingkat kemampuan masyarakat, yakni: perumahan swadaya, perumahan lama, dan pemukiman ilegal. Metode yang digunakan dalam penulisan ini adalah metode penelitian kepustakaan (Library Research). Metode penelitian kepustakaan adalah salah satu jenis penelitian yang dilakukan dengan seseorang peneliti dengan mengumpulkan data-data yang bersumber dari buku, jurnal, artikel ataupun tulisan-tulisan tertentu dan metode kajian literatur berupa e-book dan jurnal yang didapatkan dari penyedia jurnal di internet baik itu nasional maupun internasional.
Dampak Sosial Ekonomi Objek Wisata Lappa Laona Kabupaten Barru
Authors: Risfaisal Risfaisal , Kaharuddin Kaharuddin , Nasrah Nasrah
Published: September 2022

Pada objek wisata Lappa Laona belum tertata secara struktural oleh pemerintah sehingga terjadi ketidak aturan dalam jual beli di Lappa Laona. Namun objek wisata Lappa Laona berdampak bagi masyarakat dalam menambah pendapatannya dengan melakukan usaha kecil-kecilan di era objek wisata. Penelitian ini mengunakan penelitian kualitatif deskriptif dengan pendekatan riset fenomenologi yang bertujuan untuk mengetahui proses pembentukan objek wisata, dan dampak sosial ekonomi objek wisata  Lappa Laona. Pengumpulan data dalam penelitian ini mengunakan 3 teknik  yaitu observasi, wawancara dan dokumentasi. Hasil penelitian menunjukkan bahwa adanya objek wisata Lappa Laona ini bisa membuka usaha kecil-kecilan untuk membuka lembaran yang baru dalam menambah pendapatan sehari-harinya. Dampak sosial dalam perilaku masyarakat terhadap lingkungan sekitar  objek wisata yakni masyarakat yang secara langsung terlibat dalam pembangunan objek wisata Lappa Laona. Adanya pariwisata di Kabupaten Barru tentu dapat menyebabkan adanya dampak positif dan dampak negatif di kalangan masyarakat.
Pengembangan Media Pembelajaran Berbantuan Prezi pada Materi Operasi Hitung Pecahan di Kelas V Sekolah Dasar
Authors: Kurniawan Diki , Nur’aeni L Epon , Hidayat Syarip , Wahid Muharram Muhammad Rijal
Published: September 2022

Penelitian ini bertujuan untuk mendeskripsikan proses pengembangan media pembelajaran berbantuan prezi pada materi operasi hitung pecahan di kelas V sekolah dasar. Metode penelitian yang digunakan dalam penelitian ini adalah metode Research and Development (R&D) dengan model pengembangan ADDIE (Analyze, Design, Development, Implementation, and Evaluate). Data dalam penelitian ini dikumpulkan melalui wawancara, observasi, tudi dokumentasi, penilaian para ahli saat validasi produk dan angket respon siswa pada saat uji coba. Berdasarkan validasi kepada para ahli mendapat penilaian 93,75% dari ahli materi dengan kriteria valid/ layak, 76,78% dari ahli pedagogik dengan kriteria valid/ layak, dan 76,78% dari ahli media dengan kriteria valid/ layak. Dari hasil angket respon siswa pada uji coba tahap I yang diisi oleh 22 siswa mendapatkan hasil 90,79% dengan kriteria sangat praktis dan dari hasil angket respon siswa pada uji coba tahap II yang diisi oleh 32 siswa mendapatkan hasil 94,21% dengan kriteria sangat praktis. Dengan demikian media pembelajaran berbantuan prezi pada materi operasi hitung pecahan di kelas V sekolah dasar valid dan sangat praktis
Perilaku Sosial Penggiat Game Higgs Domino Di KotaMakassar (Dalam Tinjauan Post Modern)
Authors: Amin Sulvahrul , Azis Fatimah , Umakamea Febryani
Published: September 2022

Abstrak: Perilaku Sosial Penggiat Game Higgs Domino Di Kota Makassar terhadap Game Domino, terbilang masih marak dan masih di lakukan oleh masyarakat di Kota Makassar sebagian besar penggiat game kecanduan .penelitian  kualitatif  dengan  pendekatan  fenomenologi  yang bertujuan  untuk  mengungkap  bagaimana  perilaku  sosial  penggiat  game  higgs domino di kota Makassar  dan bagaimana dampak penggiat game higgs domino . Lokasi penelitian ini berada di kota Makassar. Informan dalam penelitian ini yaitu, Penggiat game, masyarakat makassar, Toko Masyarakat, dan yang tidak bermain game. Teknik pengumpulan datanya  menggunakan tiga cara yaitu, Observasi, Wawancara dan Dokumentasi.Hasil Penelitian ini . Memainkan game online dengan cara berlebihan akan mengurangi  aktivitas  positif  yang  seharusnya  dijalani  oleh  anak  pada  usia perkembangan mereka. Motivasi belajar mereka menjadi rendah, waktu  untuk bersosialisasi dengan teman sebaya mereka. Bermain game telah menjadi salah satu hiburan paling popular di dunia, jauh mengungguli bentuk-bentuk permainan dan hiburan anak lainnya. Hal ini terjadi  karena  game  menawarkan  banyak  pilihan,  dimana  para  pemain  game diajak  untuk  menghadapi  dilema  moral,  interaksi  sosial,  dan  memecahkan berbagai  masalah  yang  sering  kali  terjadi  dalam  kehidupan  nyata,  sehingga mereka selalu tertarik pada hal-hal baru. Dalam hal ini, anakanak akan selalu ingin bermain game, dan akhirnya menjadi kecanduan game. Jika seorang remaja menjadi kecanduan bermain game online, sudah dapat dipastikan waktu mereka akan banyak dihabiskan untuk bermain game sehingga waktu untuk melakukan hal-hal lain tidak ada. Hal ini lama kelamaan dapat mempengaruhi kepribadiaan penggiat.
The Distribution Mapping for Environmental Evaluation of Waterlily (Nymphaea pubescens Willd.) Growing in Lebak Swampland in Kalimantan Selatan Province
Authors: Yuliarti Astinana , Ismuhajaroh Bakti Nur , Kumalawati Rosalina , Murliawan Karnanto Hendra , Anggraini Rizky Nurita , Alkirani Asri
Published: September 2022

The lotus is one of the aquatic plants that grow in the Lebak area and is widely used as food and medicine by the local community. The lotus growing environment determines its growth. The distribution of lotus plants has not been well identified. This study aims to determine the distribution of lotus mapping for environmental evaluation of lotus growing in Teluk Sinar Village, Sungai Pandan District, Hulu Sungai Utara Regency, South Kalimantan Province. The study used data collection methods with primary and secondary data survey techniques. Primary survey through delineation of lotus plant boundaries in the field. Field measurements were also carried out to identify the environmental variables of lotus growing. In addition, the interpretation of high-resolution satellite imagery and low-resolution satellite imagery for spectral analysis. The environmental variables for growing lotus include water depth, light penetration depth, water pH, and sediment pH. The results of the study revealed a map of the distribution of lotus and the growing environment of the lotus. The lotus distribution map was obtained from the results of overlaying several thematic maps, image interpretation, and field measurements using Arc View and Arc GIS software. The distribution of lotus plants can grow in an environment with a water depth of 35-121 cm, a light penetration depth of 23-100 cm, a water pH of 6.25-8.37, and a sediment pH of 3.33-4.69. The results of the Lotus Distribution Mapping and the Lotus growing environment obtained can be used as a basis for determining the potential distribution of Lotus in each region.
Statistical Characterization of Wireless Power Transfer via Unmodulated Emission
Authors: Galmés Sebastià
Published: September 2022

In the past few years, the possibility to transfer power wirelessly has experienced growing interest from the research community. Since the wireless channel is subject to a large number of random phenomena, a crucial aspect is the statistical characterization of the energy that can be harvested by a given device. For this characterization to be reliable, a powerful model of the propagation channel is necessary. The recently proposed Generalized-K model has proven to be very useful, as it encompasses the effects of path-loss, shadowing and fast fading for a broad set of wireless scenarios, and it is analytically tractable. Accordingly, the purpose of this paper is to characterize, from a statistical point of view, the energy harvested by a static device from an unmodulated carrier signal generated by a dedicated source, assuming that the wireless channel obeys the Generalized-K propagation model. Specifically, using simulation-validated analytical methods, this paper provides exact closed-form expressions for the average and variance of the energy harvested over an arbitrary time period. The derived formulation can be used to determine a power transfer plan that allows multiple or even massive numbers of low-power devices to operate continuously, as expected from future network scenarios such as IoT or 5G/6G.
The CSHQ-DE Questionnaire Uncovers Relevant Sleep Disorders in Children and Adolescents with Long COVID-19
Authors: Werner Sarah , Doerfel Claus , Biedermann Richard , Lorenz Michael , Rasche Marius , Proquitté Hans , Newman Lars , Vilser Daniel
Published: September 2022

Acute SARS-CoV-2 infections in children and adolescents are usually mild. However, they can suffer from ongoing symptoms generally referred as long COVID. Sleep disorders are one of the most frequent complaints in long COVID although precise data are missing. We assessed the sleep behavior of children and adolescents who presented at our outpatient clinic between January 2021 and May 2022 with the Children's Sleep Habits Questionnaire (CSHQ-DE). We compared sleep behavior at three different time points: pre-COVID-19, post-COVID-19 at initial presentation and post-COVID-19 at re-presentation. Data from 45 patients were analyzed. Of those, 64% were female and the median age was 10 years (range 0-18 years). Asymptomatic or mild COVID-19 disease was experienced in 89% of patients, whilst 11% experienced moderate disease. Initial presentation occurred at a median of 20.4 weeks (6 weeks - 14 months) after infection. The CSHQ-DE score increased significantly from pre-COVID-19 (45.82+8.7 points) to post-COVID-19 (49.40+8.3 points; p=<0.01). The score then normalized at re-presentation (46.98+7.8; p=0.1). The greatest changes were seen in the CSHQ-DE subscale score "daytime sleepiness". Our data show that children and adolescents with long COVID often suffer from sleep disturbance. For most children and adolescents these sleep disorders decreased over time without further medical intervention, aside from a basic sleep consultation.
The Study of Consumer Behavior on Online Food Ordering System (Go-Food) in The Metropolitan City
Authors: Jahidi Idi , Ruyani N. A. , Alamsyah Doni Purnama
Published: September 2022

The recent development of the Internet has boosted the extension of online food services by enabling people to search, compare prices and conveniently access these services. Because, only with an online system, small and medium-sized economic actors can compete with established food company such as McD and KFC. Therefore, it is important to know consumer behavior patterns from online food ordering systems for developing marketing strategies. Exploring online consumer behavior provides a better understanding of consumer segmentation in food demand and thus helps to lay the foundation for developing an online marketing strategy for competitive advantage. The purpose of this study is to finding factors affecting attitude towards online food retailing. This study uses a quantitative approach by involving respondents who often use online food ordering systems (Go-Food) applications in Bandung. The results showed that hedonic motivation and price saving orientation had no significant effect on behavior intention toward OFD services by Go-Food, while time saving orientation, prior online purchase experience and convenience motivation had a significant effect on behavior intention toward OFD services.
Study of the Economic Feasibility of Thermal Catalytic Pro-cess of Açaí Seeds (Euterpe Oleracea) and Scum from Grease Traps
Authors: Amaral Anderson Rocha , Bernar Lucas Pinto , Ferreira Caio Campos , De Oliveira Romero Moreira , Pereira Anderson Mathias , Pereira Lia Martins , Santos Marcelo Costa , Assunção Fernanda Paula da Costa , Bezerra Kelly Christina Alves , Almeida Hélio da Silva , Mendonça Neyson Martins , Tavares Antônio de Noronha , Pereira José Almir Rodrigues , Da Mota Sílvio Alex Pereira , De Castro Douglas Alberto Rocha , Jr. Sérgio Duvoisin , Borges Luiz Eduardo Pizarro , Machado Nélio Teixeira
Published: September 2022

This work aims to investigate systematically the tecno-economic feasibility of ther-mos-catalytic cracking process for two solid waste materials, a lipid-base material (re-sidual fat/scum from retention box of the University Restaurant of UFPA) and a lig-nin-cellulosic material Açaí seed (Euterpe oleracea. Mart). The thermo-catalytic process-es were carried out in pilot scale (THERMTEK/LEQ/UFPA/IME/RJ), and their economic feasibility analyzed. The yields of biofuels produced by fractional distillation were al-so studied. The physicochemical characteristics of the raw materials, the organic liquid product (bio-oil) and the chemical composition of kerosene, light-diesel and heavy-diesel from the lipid-base material, as well as those of kerosene and light-diesel from the Açaí seed were also determined. The economic indicators for the evaluation of the most viable cracking (pyrolysis) and distillation process of bio-oils were: a) the sim-ple payback criterion, b) discounted payback, c) net present value (NPV), d) internal rate of return (IRR), and e) index of profitability (IP). The analysis of the indicators showed the economic viability of crude palm oil (Elaeis guineensis, Jacq) and unfeasibil-ity for the palm oil neutralization. The minimum fuel selling price (MFSP) obtained is this work for the biofuels was of 1.34 US$/L) and the breakeven point obtained was of 1.28 US$/L. The sensibility analysis demonstrated that the pyrolysis and distillation yields are the most important variables to affect the minimum fuel selling price (MFSP).
Association of Infant Feeding Indicators and Infant Feeding Practices with Coexisting Forms of Malnutrition in Children under Six Months of Age
Authors: Khaliq Asif , Wraith Darren , Miller Yvette D. , Nambiar Smita
Published: September 2022

Breastmilk is the only recommended source of nutrition for infants below six-months of age. However, a significant proportion of children are either on supplemental breastfeeding(SBF) or weaned due to the early introduction of solid/semi-solid/soft food and liquids(SSF) before 6 months of age. There is good evidence that Exclusive Breastfeeding(EBF) in infants below six-months of age protects them from preventable illnesses, including malnutrition. The relationship between infant feeding practices and coexisting forms of malnutrition(CFM) has not yet been explored. This study examined the association of different feeding indicators(continuation of breastfeeding, predominant feeding, and SSF) and feeding practices(EBF, SBF, and complete weaning) with CFM in infants aged below six-months of age in Pakistan. National and regional datasets of Pakistan from the last ten years were retrieved from the Demographic Health Surveys(DHS) and UNICEF data repositories. In Pakistan, 34.5%(n=6131) of infants have some form of malnutrition. Among malnourished infants, 44.7%(~15.4% of the total sample) had a CFM. Continuation of breastfeeding was observed in more than 85% of infants, but less than a quarter were on EBF, and the rest were either SBF(65.4%) or weaned infants(13.7%). Compared to EBF, complete weaning increased the odds of coexistence of underweight with wasting and underweight with both wasting and stunting by 1.96(1.12-3.47) and 2.25(1.16-4.36), respectively. Overall, breastfed children had lower odds of various forms of CFM (compared to non-breastfed), except for the coexistence of stunting with overweight/obesity. Continuation of any breastfeeding protects infants in Pakistan from various types of CFM during the first six months of life.
On the Basic Convex Polytopes and n-Balls in Complex Dimensions
Authors: Łukaszyk Szymon
Published: September 2022

This paper extends the findings of the prior research concerning n-balls, regular n-simplices, and n-orthoplices in real dimensions using recurrence relations that removed the indefiniteness present in known formulas. The main result of this paper is a proof that these recurrence relations are continuous for complex n, wherein the volume of an n-simplex is a multivalued function for n < 0, and thus the surfaces of n-simplices and n-orthoplices are also multivalued functions for n < 1. Applications of these formulas to n-simplices, n-orthoplices, and n-cubes inscribed in and circumscribed about n-balls reveal previously unknown properties of these geometric objects in negative, real dimensions. In particular, it is shown that the volume and surface of a regular n-simplex inscribed in an n-ball are complex for −1 < n < 0, imaginary for n < −1, and divergent with decreasing n; the volume and surface of a regular n-simplex circumscribed about an n-ball is complex for n < 0 and left-handedly respectively convergent to zero or divergent towards infinity; and the volume and surface of an n-orthoplex circumscribed about an n-ball is complex for n < 0 and oscillatory divergent towards infinity with decreasing n.
Global Dynamics of SARS-CoV-2 Infection with Antibody Response and the Impact of Impulsive Drug Therapy
Authors: Chatterjee Amar Nath , Biswas Dibyendu , Basir Fahad Al
Published: September 2022

Mathematical modeling is crucial in investigating the pandemic of the ongoing coronavirus disease (COVID-19). The primary target area of the SARS-CoV-2 virus is epithelial cells in the human lower repertory track. During this viral infection, infected cells can initiate innate and adaptive immune responses to viral infection. Immune response in COVID -19 infection can lead to longer recovery time and more severe secondary complications. We formulate a target cell limited mathematical model by incorporating a saturation term for SARS-CoV-2 infected epithelial cell loss reliant on infected cell levels. Forward and backward bifurcation between disease-free and endemic equilibrium points has been analyzed. Global stability of both disease-free and endemic equilibrium is provided. We have seen that the disease-free equilibrium is globally stable for $R_0<1$, and endemic equilibrium exists and is globally stable for $R_0>1$. Impulsive application of drug dosing has been applied for the treatment of covid-19 patients. Also, the dynamics of the impulsive system are discussed when a patient takes drug holidays. The numerical simulations are performed in support of our analytical findings and for the qualitative analysis of the system's dynamics with and without impulse drug dosing.
Sex Specific Differences in Response to Calorie Restriction in Skeletal Muscle of Young Rats
Authors: Torrens-Mas Margalida , Navas-Enamorado Cayetano , Wahl Devin , Sanchez-Polo Andres , Picca Anna , Oliver Jordi , Roca Pilar , Gonzalez-Freire Marta
Published: September 2022

Calorie restriction (CR), defined as a reduction of the total calorie intake of 30% to 60% without malnutrition, is the only nutritional strategy that has proven to extend lifespan, prevent or delay the onset of age-associated diseases, and delay the functional decline in a wide range of species. However, little is known about the effects of CR when started early in life. We sought to analyze the effects of CR in the skeletal muscle of young Wistar rats. For this, 3-month-old male and female rats were subjected to 40% CR or fed ad libitum for 3 months. Gastrocnemius muscles were used to extract RNA and total protein. Western blot and RT-qPCR were performed to evaluate the expression of key markers/pathways modulated by CR and affected by aging. CR decreased body and skeletal muscle weight in both sexes. No differences were found in most senescence, antioxidant, and nutrient sensing pathways analyzed. However, we found a sexual dimorphism in markers of oxidative stress, inflammation, apoptosis, and mitochondrial function in response to CR. Our data show that young female rats treated with CR exhibit similar expression patterns of key genes/pathways associated with healthy aging when compared to old animals treated with CR, while in male rats these effects are reduced. Additional studies are needed to understand how early or later life CR exerts positive effects on health- and lifespan.
Sacred Groves and Natural Sites Conservation for Tourism in Local Communities in Nigeria
Authors: Ejikeme Joy N. U. , Okonkwo Uche Uwaezuoke
Published: September 2022

The purpose of this study is to examine the potential of the sacred groves and natural sites for tourism in local communities in Nigeria. Three communities in Inyi town were chosen as case studies: Umuome, Enugwu-Inyi, and Alum, using a purposive sampling technique. An ethnographic data collection method was adopted, using in-depth interviews and direct observation. Grove locations were located and mapped using a geographic information system (GIS) throughout the research area. The secondary data was obtained from scholarly journals. The findings showed that the sacred groves and natural sites had exceptional value for cultural and eco-tourism. There are not many works that have studied the tourism dimension of the sacred groves in the study domain. The implication of the study is that tourism aids in the preservation of the sites' integrity. The research helps the government and policymakers to adopt a policy that promotes tourism in the sacred groves. This research is important to researchers at the universities and research institutions that are seeking to carry out a related research. Conclusively, utilizing the area for tourism is a superior conservation alternative.
Comparison of Two Bacterial Characterization Techniques for the Genomic Analysis of Aquatic Environments
Authors: Bonelly Roberto , Calderón Victor V. , Pinales Confesora , Ortiz Irene , Ovando Argenys , Lara Willy , Mateo-Perez Santo E. , Cardenas-Alegría Oscar , Jucá Ramos Rommel T. , Franco Edian F. , Maroto Luis O.
Published: September 2022

Our research team compared the performance of matrix-assisted laser desorption/ionization followed by a time of flight (MALDI-TOF) mass spectrometry and genomic DNA extraction followed by sequencing, assembly and alignment for phylogenetic assessment. We performed these comparisons to determine our methodology’s overall efficacy and accuracy for environmental bacteria. In addition, we collected samples from various contaminated rivers in the Dominican Republic. For both methods, we analyzed these results and reported the main differences between each method.
T-cell Response and Antibody Production by Booster COVID-19 Vaccination in Japanese Patients with Chronic Kidney Disease Treated with Hemodialysis
Authors: Yoshifuji Ayumi , Toda Masataro , Ryuzaki Munekazu , Oyama Emi , Kikuchi Kan , Kawai Toru , Sakai Ken , Koinuma Masayoshi , Katayama Kazuhiko , Uehara Yuki , Ohmagari Norio , Kanno Yoshihiko , Kon Hirofumi , Tanaka Junko , Shinoda Toshio , Takano Yaoko , Hora Kazuhiko , Nakazawa Yasushi , Hasegawa Naoki , Hanafusa Norio , Hinoshita Fumihiko , Morikane Keita , Wakino Shu , Nakamoto Hidetomo , Takemoto Yoshiaki
Published: September 2022

Most studies on vaccines of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have focused on antibody, but cellular immunities are also critical. We aimed to evaluate the immune reactions of hemodialysis (HD) patients after the administration of the booster dose from the perspective of both humoral and cellular immunities. Hemodialysis patients (HD group) and age- and sex-matched non-dialysis individuals (control group) receiving three doses of BNT162b2 vaccine were measured for anti-SARS-CoV-2 immunoglobulin (IgG) and T-SPOTⓇ.COVID test (T-SPOT) before, 3 weeks, and 3 months after the booster dose. The HD group had significantly higher SARS-CoV-2 IgG levels 3 weeks and 3 months after the booster dose than the control group, although both groups had no difference in SARS-CoV-2 IgG levels before the booster dose. Moreover, the HD group had significantly higher T-SPOT levels before and 3 weeks after the booster dose than the control group, but the difference was not significantly different 3 months after the booster dose. Furthermore, the incidence rates of local and systemic adverse reactions were significantly higher in the HD group than in the control group. HD patients obtained higher SARS-CoV-2 IgG levels and SARS-COV-2-specific T-cell responses after the booster dose than control.