bluuebunny/crossref_metadata_2025 huggingface dataset:
Au/ZnO Hybrid Nanostructures on Electrospun Polymeric Mats for Improved Photocatalytic Degradation of Organic Pollutants
Authors: Campagnolo Laura , Lauciello Simone , Athanassiou Athanassia , Fragouli Despina
Published: August 2019

An innovative approach for the fabrication of hybrid photocatalysts on a solid porous polymeric system for the heterogeneous photocatalytic degradation of organic pollutants is herein presented. Specifically, gold/zinc oxide (Au/ZnO)-based porous nanocomposites are formed in situ by a two-step process. In the first step, branched ZnO nanostructures fixed on poly(methyl methacrylate) (PMMA) fibers are obtained upon the thermal conversion of zinc acetate-loaded PMMA electrospun mats. Subsequently, Au nanoparticles (NPs) are directly formed on the surface of the ZnO through an adsorption dipping process and thermal treatment. The effect of different concentrations of the Au ion solutions to the formation of Au/ZnO hybrids is investigated, proving that for 1 wt % of Au NPs with respect to the composite there is an effective metal–semiconductor interfacial interaction. As a result, a significant improvement of the photocatalytic performance of the ZnO/PMMA electrospun nanocomposite for the degradation of methylene blue (MB) and bisphenol A (BPA) under UV light is observed. Therefore, the proposed method can be used to prepare flexible fibrous composites characterized by a high surface area, flexibility, and light weight. These can be used for heterogeneous photocatalytic applications in water treatment, without the need of post treatment steps for their removal from the treated water which may restrict their wide applicability and cause secondary pollution.
Using Bayesian Networks to Assess Effectiveness of Phosphorus Abatement Measures under the Water Framework Directive
Authors: Brabec Jan , Macháč Jan , Jílková Jiřina
Published: August 2019

The EU Water Framework Directive requires all water bodies within the EU member states to achieve a “good status”. Many economic assessments assume the “good status” is achieved using selected measures and evaluate only associated costs and benefits. In this paper, Bayesian networks are used to test this assumption by evaluating whether the “good status” can be achieved with the selected abatement measures. Unlike in deterministic analysis, Bayesian networks allow effectiveness of measures of the same type to vary, which adds credibility to the analysis by increasing its robustness. The approach was tested on Stanovice reservoir in Czechia using a set of 244 previously designed measures. The results show the target will be met with a probability of 72.4% using the most cost-efficient measures. Based on the results, improvements to the measure selection process are suggested.
The Influence of Bottom Sediments and Inoculation with Rhizobacterial Inoculants on the Physiological State of Plants Used in Urban Plantings
Authors: Wyrwicka Anna , Urbaniak Magdalena , Siebielec Grzegorz , Siebielec Sylwia , Chojak-Koźniewska Joanna , Przybylski Mirosław , Witusińska Aleksandra , Kidd Petra Susan
Published: August 2019

Bottom sediments accumulate rapidly in urban reservoirs and should be periodically removed. Their high organic matter content makes them valuable fertilizers, but they often contain toxic substances. The present study compares the responses of the dicotyledonous Tagetes patula and monocotyledon Festuca arundinacea to the presence of such sediments in soil and to soil inoculation with two rhizobacterial strains (Massilia niastensis p87 and Streptomyces costaricanus RP92) isolated from contaminated soil. Total soluble protein, total chlorophyll content, as well as chlorophyll a/b ratio, degree of lipid peroxidation (TBARS), α-tocopherol content, total phenolic compounds (TPC) content and anthocyanins content were examined in the leaves of investigated plants. T. patula was more sensitive to the toxic substances in the sediments than F. arundinacea. Rhizobacterial inoculation reduced the toxic effect of the sediment. RP92 has a more favorable effect on the condition of T. patula than p87. F. arundinacea was not adversely affected by the addition of sediments or inoculation with the p87 or RP92 strains. Both tested plant species are suitable for planting on soils enriched with urban sediments, and the addition of bacterial inoculums promote plant growth and reduce the damage caused by the xenobiotics contained in the sediments.
Pengaruh Pendekatan Matematika Realistik Indonesia Menggunakan Media Biji Kolang-Kaling Berwarna Terhadap Hasil Belajar Matematika Materi Bilangan Bulat Kelas V SDN 12 Simpangkatis
Authors: Ayu Chayati, Sri Sugiyarti, Yudi Yunika Putra
Published: August 2019

Tujuan penelitian ini adalah untuk mengetahui pengaruh Pendekatan Matematika Realistik Indonesia menggunakan media biji kolang-kalingberwarna terhadap hasil belajar Matematika siswa kelas V materi bilangan bulat SD Negeri 12 Simpangkatis.Metode yang digunakan dalam penelitian ini menggunakan metode penelitian kuantitatif dengan dengan jenis penelitian eksperimen dengan desain one group pretest-posstestdesign. Penelitian ini dilaksanakan di kelas V SD Negeri 12 Simpangkatis, penelitian ini dilaksanakan pada semester ganjil Tahun Ajaran 2018/2019. Populasi pada penelitian ini yaitu seluruh siswa kelas V SD Negeri 12 Simpangkatis Tahun Ajaran 2018/2019 yang berjumlah 27 siswa. Sampel pada penelitian ini adalah siswa kelas V SD Negeri 12 Simpangkatis dengan jumlah 27 siswa, yang diambil menggunakan tekhnik Sampling Jenuh. Hasil pada penelitian ini menunjukkan bahwa Pendekatan Matematika Realistik Indonesia menggunakan media biji kolang-kaling berwarna berpengaruh terhadap hasil belajar Matematika materi bilangan bulat kelas V SD Negeri 12 Simpangkatis. Hal ini berdasarkan pada hasil posttes yang meningkat dibandingkan dengan hasil pretest. Selain itu, hasil uji Hipotesis diperoleh nilai thitung: 12,446 dan ttabel: 1,703 berdasarkan kriteria,thitung> ttabelmaka Haditerimathitung<ttabelH0ditolak . Hasilnya adalah terdapat pengaruhPendekatan Matematika Realistik Indonesiamenggunakan media biji kolang-kaling berwarna terhadap hasil belajar Matematika materi bilangan bulat kelas V SD Negeri 12 Simpangkatis
Pengembangan Bahan Ajar Segitiga Dengan Pendekatan Open Ended Untuk Meningkatkan Kemampuan Pemecahan Masalah Matematika
Authors: Mayasari Dian
Published: August 2019

Penelitian ini bertujuan untuk mengembangkan perangkat pembelajaran dengan menggunakan pendekatan open ended yang baik untuk topik segitiga di kelas VII SMP Negeri 6 Pematangsiantar, mendeskripsikan efektifitas pembelajaran dengan menggunakan pendekatan open ended untuk topik segitiga di kelas VII SMP Negeri Pematangsiantar, dan meningkatkan kemampuan pemecahan masalah matematis siswa. Bahan ajar dikatakan baik jika setelah divalidasi dan dilakukan uji coba, memenuhi syarat-syarat yang ditetapkan, yaitu untuk tiap pertemuan harus memenuhi: aktivitas siswa dalam pembelajaran berada pada batas toleransi waktu ideal, kemampuan guru mengelola pembelajaran minimal cukup baik, respon siswa terhadap perangkat pembelajaran positif, dan tes hasil belajar valid, reliabel, dan sensitif. Selanjutnya, pendekatan open ended efektif jika hasil belajar siswa tuntas, kemampuan guru mengelola pembelajaran minimal cukup baik, aktivitas siswa dalam pembelajaran efektif, dan respon siswa terhadap kegiatan pembelajaran positif.Pengembangan perangkat pembelajaran dilakukan dengan menggunakan model 4-D Thiagarajan, dkk yang telah dimodifikasi. Proses pengembangan tersebut terdiri dari tiga tahap, yaitu: pendefinisisian, perancangan, dan pengembangan. Hasil analisis data yang telah diperoleh menunjukkan bahwa bahan ajar menggunakan pendekatan open ended berdasarkan validasi dari para validator dengan nilai rata-rata untuk buku guru 4,15 untuk RPP dengan rata-rata 4,26 pengelolahan pembelajaran dengan skor rata-rata 3,94 dikatakan praktis, aktivitas siswa telah memenuhi kriteria efektif dan dikatakan praktis, ketuntasan belajar siswa mencapai 80% dan dikatakan efektif, respon siswa mencapai 90% dan dikatakan efektif. Sehingga dapat disimpulkan bahwa bahan ajar dengan menggunakan pendekatan open ended pada materi segitiga kelas VII SMP Negeri 6 Pematangsiantar adalah valid, praktis dan efektif. Untuk kemampuan pemecahan masalah matematis telah terjadi peningkatan dengan persentase gain 61%.
Assessment of Elephant Dietary Biomass at the Adjoining Area of Kaeng Krachan Natural Park, Thailand
Authors: Kroutnoi Luechai , Sriburi Thavivongse , Wijitkosum Saowanee , Nuanyai Kamol
Published: August 2019

This study investigated the dietary diversity and biomass of the elephants (Elephas maximus) ranging in the area adjoining Kaeng Krachan Natural Park, Pa Deng Sub-district, Kaeng Krachan District, Petchaburi Province, Thailand. The investigation was conducted by recon-naissance survey transect (Recce) combined with concentric sample plots with 3 different radii to observe vegetation and collect data on trees, saplings, seedlings, and undergrowth from 89 locations in the study area. Six transects along elephant feeding trails were surveyed at 200 m intervals within 15 m from the center of both sides of each line. The vegetation comprised in all 57 families and 140 plant species, of which 28 families and 51 species formed part of the elephant diets. The average biomass in the study area ranged from 8,314-65,863 tons km-2, with an average of 25,000 tons km-2. Huay Rae - Hub Pla Kang trail found the greatest amount of biomass which is 65,863 tons km-2.
Peningkatan Pengetahuan Lansia Mengenai Osteoporosis Melalui Pemberian Pendidikan Kesehatan Dengan Media Audio Visul Di Desa Karangbendo Bantul Yogyakarta
Authors: Asmarani Fajarina Lathu
Published: August 2019

Kejadian osteoporosis pada lansia dapat dicegah melalui perilaku hidup sehat. Perilaku hidup sehat didukung oleh pengetahuan. Salah satu upaya untuk meningkatkan pengetahuan lansia adalah melalui penyuluhan kesehatan audio-visual. Kelebihan pendidikan kesehatan audio visual adalah membuat cara  berkomunikasi menjadi efektif, terjangkau, dan materi menarik perhatian serta mudah untuk dipahami. Hal ini akan lebih memudahkan pemberian informasi kepeda lansia mengingat lansia mengalami penurun pada kognitif, penglihatan dan pendengaran. Di Desa Karangbendo selama ini belum pernah dilakukan penyuluhan kepada lansia dengan topik osteoporosis. Tujuan penelitian ini untuk membuktikan secara ilmiah peningkatan pengetahuan lansia mengenai osteoporosis melalui pemberian pendidikan kesehatan dengan media audio visul di desa karangbendo bantul Yogyakarta. Jenis penelitian ini adalah  quasi experimental dengan rancangan one group pre and posttest. Total sampling dengan 42 lansia. Analisa data menggunakan paired sample t-test. Membandingkan pengetahuan lansia menggunakan kuesioner sebelum dan sesudah diberikan satu kali pendidikan kesehatan audiovisual. Hasil Penelitian menunjukkan rerata pengetahuan sebelum diberikan pendidikan kesehatan sebesar 65.60 dan sesudah diberikan pendidikan menjadi 74.17 dengan nilai signifikasi 0.001 (P<0.05). Kesimpulannya ada peningkatan pengetahuan lansia mengenai osteoporosis melalui pemberian pendidikan kesehatan dengan media audio visul di desa karangbendo bantul yogyakarta.
Hubungan Antara Aktivitas Fisik dengan Kekambuhan ISPA Pada Anak Usia Sekolah di Kecamatan Bringin Kabupaten Semarang
Authors: Tomatala Sinsyeba , Kinasih Angkit , Kurniasari Maria Dyah , De Fretes Fiane
Published: August 2019

Tumbuh dan kembang anak mencakup 2 peristiwa yang berbeda, tetapi saling berkaitan. Sistem kekebalan tubuh yang dipengaruhi oleh aktivitas fisik digunakan untuk melawan penyakit infeksius. Salah satu contoh penyakit infeksius adalah infeksi saluran pernapasan akut (ISPA). Pada tahun 2012, di Jawa Tengah angka kematian bayi, 80% dan anak usia 6- 12 tahun 23% disebabkan oleh ISPA pneumonia. Tujuan dari penelitian ini untuk mengidentifikasi hubungan antara aktivitas fisik dengan kejadian ISPA pada anak usia sekolah yang berada di Kecamatan Bringin, Kabupaten Semarang. Populasi dalam penelitian ini adalah anak usia sekolah sebanyak 62 orang yang memiliki riwayat pernah menderita ISPA di Kecamatan Bringin, Kabupaten Semarang. Penelitian ini merupakan penelitian kuantitatif deskriptif. Data primer diambil dengan menggunakan instrumen kuesioner PAQ-C untuk mengukur aktivitas fisik. Berdasarkan hasil uji korelasi dengan menggunakan uji Spearman, dapat diketahui adanya hubungan antara aktivitas fisik dengan ISPA dimana nilai p-value 0,107 hal ini menunjukkan bahwa nilai signifikasinya 0,01 yang berarti ada hubungan antara aktivitas fisik dengan ISPA tetapi hubungannya lemah. Selain itu, didapatkan juga nilai koefisien korelasi 0,206, nilai tersebut adalah positif sehingga menunjukan bahwa, semakin tinggi responden dengan riwayat ISPA melakukan aktivitas fisik, maka semakin tinggi resiko responden mengalami kekambuhan ISPA.
The Historical Development of International Law of the Sea
Authors: Song Tam Xuan
Published: August 2019

Modern Law of the Sea the date of the date of the beginning of the modern international law. Graeasius, a Dutch lawyer who is considered as the law of international law, is considered as a law of the sea. In this issue published in 1609, his basic work, Free Sass, or Murray Liber tom, established some important concepts in this regard. He summarized the principle of freedom of the sea, which is free from the sea and all countries should be open to use. Not to be ambitious about the third United Nations Conference Sea law was one of the most important legislative events of the twentieth century, Centuries this international law initiates a revolution a new legislative strategy for making compromises and universal decisions Participation it creates a comprehensive deal on the sea law. As a result, it is claimed that the convention of the Sea Convention is to be provided universally, this thesis initially established a legal basis for the Los Convention The universal structure for the sea law. Discuss how it shows up the convention mainly affects traditional international law so that it is possible. The sea speaks of a universal law. However, the convention status as a public the law creates problems for its future development because it cannot be fully considered from the point of view of the treaty law. Therefore, the thesis will be considered. In addition to other legislation, the procedure for change in the Convention Out process with traditional contract framework. The central role of this analysis Institutions in the modern international law organization Thesis shows the acting part Through the law of the sea through developing political and technical institutions Explanation, correction, and correction, as well as in this way Organizations have used and improved universal decision-making strategies The first UNCLOS third is seen. It will analyze the role of court judges and tribunals maintaining and developing sea legal orders. This analysis shows that the convention provides legal framework. The modern laws of the sea for all states. In this context, there are institutional mechanisms the one-sided state practice in law enactment is replaced. Moreover, the state has been shown a choice for flexibility and pragmatism on the formal correction method. The Los Convention is creating a statutory legal order for maximum achievement, Ocean to maintain this stability, continuing discussion, discussion and compromise is important through international organizations.
A Detail on Landslide & its Types
Authors: Vukelic Rudolf
Published: August 2019

The term landslide or, less frequently, landslip, refers to several forms of mass wasting that include a wide range of ground movements, such as rock falls, deep-seated slope failures, mudflows and debris flows. Landslides occur in a variety of environments, characterized by either steep or gentle slope gradients: from mountain ranges to coastal cliffs or even underwater, in which case they are called submarine landslides. Gravity is the primary driving force for a landslide to occur, but there are other factors affecting slope stability which produce specific conditions that make a slope prone to failure. In many cases, the landslide is triggered by a specific event (such as a heavy rainfall, an earthquake, a slope cut to build a road, and many others), although this is not always identifiable.
Biotechnology and Performance of SMEs in Nigeria
Authors: A Nasidi
Published: August 2019

Nigerian SMEs suffers greatly in terms of struggling for survival. Access to finance is seen as the root of the major constrains including; limited access to water and power supply, good and quality raw-materials as well as modern infrastructures and processing methods. This paper adopts the desk research approach to review the cause and possible solutions and alternatives that can by-pass such constraints. Biotechnology, due to its natural and broad spectrum of application is seen as the potential solution to many of the problems that paralyses performance of Nigerian SMEs. When applied responsibly, the technology has potential of providing alternative source of; sufficient and high quality raw-materials, water and power supply as well as processing methods for industries at a considerably low price, thus, enhancing environmental friendliness, besides improving opportunities for new initiatives, and also enhancing performance efficiency of existing firms.
Global Competition and Biotechnology Industry: A Review
Authors: S.M. Bello
Published: August 2019

The biotechnology industry is a relatively new a distinct field that involve using living organism to produce desired product. This industry includes firms that develop, manufacture, and market pharmaceutical products, agricultural products, environmental control product, e.t.c. based on advanced biotechnology research. Although the growth in the global biotechnology industry neared double digits the past two years, the threat of entry into the market is weak due to high barriers to entry. However, because of the ease and low-cost production using biotechnology, it has increased competition in some product. Leading European nations with strong biotech sectors such as the UK and Germany are investing heavily in regenerative medicine (RM), seeking competitive advantage in this emerging sector. However, in the broader biopharmaceutical sector the European Union (EU) is outperformed by the US on all metrics, reflecting longstanding problems: limited venture capital finance, a fragmented patent system, and relatively weak relations between academia and industry. The current global downturn has exacerbated these difficulties. The crisis comes at a time when the European Union is reframing its approach to the governance of innovation and renewing its commitment to the goal of making Europe the leading player in the global knowledge economy.
Aesthetical Quality & Artistic Values of Beauty of Tagore and Seal
Authors: Hassan Md. Mahadi
Published: August 2019

Some separate aesthetics and philosophy of art, claiming that the former is the study of beauty while the latter is the study of works of art. However, most commonly Aesthetics encompasses both questions around beauty as well as questions about art. It examines topics such as aesthetic objects, aesthetic experience, and aesthetic judgments. For some, aesthetics is considered a synonym for the philosophy of art since Hegel, while others insist that there is a significant distinction between these closely related fields. In practice, aesthetic judgement refers to the sensory contemplation or appreciation of an object (not necessarily an art object), while artistic judgement refers to the recognition, appreciation or criticism of art or an art work.
Explain the Importance of Positive Relationships between Teachers and Students
Authors: Ku Shing
Published: August 2019

The interest of students towards the school increases. Interest and motivation to study. The drop in dropouts of the students in the school. Dependence on memorabilia decreases. The development of the students' social qualities. The idea about the content is obvious when classrooms are more interactive. Helps the students to get better results. Helps to get the job done. A positive attitude towards learning can be developed. The teachers and students become trustworthy and respected. The quality of education increases.
MENINGKATKAN KEMAMPUAN BERPIKIR KREATIF MATEMATIS SISWA SMP MELALUI MODEL PEMBELAJARAN SEARCH, SOLVE, CREATE, AND SHARE DAN MODEL PROBLEM CENTERED LEARNING
Authors: Pakpahan Nia Marito , Simbolon Mangadar
Published: August 2019

The ability of creative thinking is one of the important mathematical skills, but fromthe results of previous research indicates the low ability of students' mathematical creativethinking. One of the factors causing the low ability of students' mathematical creative thinkingbecause students who are less active in expressing ideas creatively in solving problems,sparked his ideas, and detailed the problem. Therefore, it is needed a learning model that canaccelerate students' activeness in solving math problems. The author conducted research onthe application of Search, Solve, Create and Share (SSCS) model and Problem CenteredLearning (PCL) model to help improve students' mathematical creative thinking ability. Datacollection techniques use test instruments to measure student learning outcomes. The resultsof this study indicate that: (1) students' creative thinking ability using Search, Solve, Createand Share (SSCS) model is in high category, while PCL model is in moderate category, (2)there is a significant difference between improvement the ability of mathematical creativethinking between students who obtained the Search, Solve, Create and Share (SSCS) modeland students who obtained the PCL model, and (3) the students' response to Search, Solve,Create and Share (SSCS) models and PCL entered into " like ".
Thyroid disorders during pregnancy and anesthetic considerations
Authors: Tariq Dr , Sannaboraiah Dr. Sushma K
Published: August 2019

Our knowledge about thyroid function during pregnancy has made rapid strides in the recent past. However, there are not much published reports in anesthesia literature regarding these newer developments. Even though an anesthesiologist is not the primary care physician, he/she may occasionally encounter pregnant patients with thyroid dysfunction in routine practice of anesthesia. This article aims to update anesthesiologists about recent developments in understanding of thyroid physiology during pregnancy, effects of thyroid dysfunction on mother and fetus, interpretation of thyroid function tests as well as treatment and anesthetic considerations.
PENERAPAN METODE PENGAJARAN TOTAL PHYSICAL RESPONSE (TPR) BAGI GURU BAHASA INGGRIS MADRASAH IBTIDAIYAH DI PONDOK PESANTREN AL AMALUL KHAIR PALEMBANG
Authors: Ujihanti Murwani , Ardiansyah Welly , Suroso Suroso
Published: August 2019

Penyuluhan pelatihan Pelatihan Penerapan Metode Pengajaran Total Physical                                                 Response (TPR)  bagi guru Bahasa Inggris Madrasah  Ibtidaiyah di Pondok Pesantren Al Amalul Khair Palembang bertujuan untuk memberikan penyuluhan kepada Guru Bahasa Inggris Madrasah  Ibtidaiyah di Pondok Pesantren Al Amalul Khair Palembang bagaimana melakukan penerapan metode pengajaran   Total Physical Response (TPR). Hal ini dimaksudkan untuk menambah pengetahuan serta memberikan alternatif pilihan cara pengajaran bagi guru Bahasa Inggris Madrasah  Ibtidaiyah di Pondok Pesantren Al Amalul Khair Palembang. Kegiatan ini dihadiri oleh seluruh guru Bahasa Inggris Madrasah  Ibtidaiyah di Pondok Pesantren Al Amalul Khair Palembang.  Dalam penyuluhan, terjadi diskusi dan brain-storming yang menarik sehingga kegiatan penyuluhan ini sesuai dengan yang telah direncanakan. Pada akhir kegiatan penyuluhan peserta telah memahami tata cara penerapan metode pengajaran Total Physical Response (TPR).
PENGELOLAAN LINGKUNGAN DENGAN CARA MEMANFAATKAN FLY ASH BATUBARA SEBAGAI BAHAN BAKU MEMBRAN SILIKA DALAM UPAYA MEMINIMALISIR LIMBAH B3 DI PT SEMEN BATURAJA OKU
Authors: Trisnaliani Lety , Purnamasari Indah , Zikri Ahmad , Yuliati Selastia
Published: August 2019

The target of community service assignments in 2018 is productive communities that need development in the field of environmental management, namely employees of the Quality Control Laboratory of PT. Semen Baturaja OKU. Coal ash is a waste unlike gas from combustion, because it is a solid material that is not easily dissolved and is not volatile so it will be more troublesome in handling. If the amount is large and is not handled properly, then the coal ash can pollute the environment especially caused by fly ash and can be sucked by humans and animals can also affect the condition of the surrounding water and soil so that it can kill the plants. The chemical composition of Fly ash is silica, alumina and iron with little calcium, magnesium, sulfate, and other components. Currently coal fly ash is used in cement plants as a mixture of concrete makers. Because of the smoothness and round shape of the granules, the use of fly ash on the concrete mixture can increase the slack on the concrete mixture. The advantages of using fly ash include increasing the strength of concrete, filling the pores in the concrete so that the porosity of the concrete becomes low, while increasing the density of concrete so that it can increase the tightness of concrete to water. The coal fly ash waste that accumulates also occurs in the industry of PT Semen Baturaja Ogan Komering Ulu. PT. Semen Baturaja is one of the largest cement industries in Sumatra that produces PCC (Portland Composite Cement). PCC type cement is cement made by utilizing inorganic additives such as fly ash and trass. Aside from being an additional material for cement, fly ash can also be used as a raw material for making silica membranes which serves to reduce metal content in acid mine drainage. So that the author wishes to socialize the employees and employees of PT Semen Baturaja especially in the BTA II Quality Control laboratory division to disseminate knowledge about the benefits of coal fly ash as raw material for silica membranes in minimizing B3 waste so that environmental management with a friendly environment will achieved.
PENYULUHAN UNTUK IBU RUMAH TANGGA DI LUNJUK JAYA RT.30 RW.10 KELURAHAN LOROK PAKJO KECAMATAN ILIR BARAT I PALEMBANG TENTANG BIODISEL DARI LIMBAH IKAN
Authors: Anisah Masayu , Evelina Evelina , Abdurrahman Abdurrahman , Husni Nyayu Latifah
Published: August 2019

Program Pengabdian Masyarakat Kerjasama Dosen mahasiswa (PPM_KDM) adalah Penyuluhan untuk ibu rumah tangga tentang biodisel dari limbah ikan. Pengabdian ini menitik beratkan pada pemanfaatan limbah ikan yang ada di sekitaran Pasar 26 Ilir Palembang. Limbah ikan biasanya menjadi salah satu penyebab pencemaran lingkungan dengan bau menyengat dan sangat mengganggu akibat kerumunan lalat. Kategori limbah adalah sampah. Pengabdian ini memfokuskan melakukan penyuluhan disertai demo lagsung tentang bagaimana mengolah limbah ikan hingga menjadi bahan bakar. Objek penyuluhan adalah ibu  rumah tangga di RT.30/10 Lunjuk Jaya. Tahapan kegiatan ini di lakukan mulai bulan Agustus sampai dengan bulan Desember 2016. Dimana peserta penyuluhan terdiri dari 20 sampai 25 orang masyarakat. Tahap – tahap pengabdian ini yaitu Pra interaksi, Introduksi atau Orientasi, Kerja, Terminasi proses, dan Terminasi akhir.
Effect of Land Use on Soil Physical and Hydrological Properties on Sandstones Parent material in Akwa Ibom State, Nigeria
Authors: P.I. Ogban , E.N. Ibitt
Published: August 2019

Knowledge of soil physical and hydrological properties is used by soil scien- tists, agronomists, hydrologists, irrigation engineers and environmental scientists for developing best management practices for efficient and economical manage- ment of soil and water for optimum crop production and designing liquid waste disposal systems. A study was conducted on the sandstone parent material in northern Akwa Ibom State to evaluate the effects of forest (FO), fallow (FA), and cultivated (CU) land use types on soil physical and hydrological properties. The effects of the three land use practices on soil properties were generally, sta- tistically non-significant; however, there were remarkable differences among the land uses. It was observed that bulk density (BD), water stable aggregates (WSA), soil organic carbon (SOC), saturated water content (SWC), field capaci- ty water content (FC), and sorptivity (S) were higher in CU than in FO and FA, indicating that forest soils may not always have improved soil physical and hy- drological properties than cultivated soil. However, since the soils are coarse- textured (with low clay content), conservation tillage involving the application of plant materials on the surface or ploughed into the soil and occasional fallow- ing to replenish the organic matter content, are needed to bind the primary parti- cles, stabilize soil structure, and improve water intake and storage, important indices for the optimum edaphological functions of the soils in the study area.
Soil organic matter and its active pools as affected by legume/cereal cropping systems under some agronomic practices in the derived savannah zone of Nigeria
Authors: I.M. Uzor , G.U.C. Ezepue
Published: August 2019

Introduction of grain legumes facilitates farmers’ acceptance in adopting legume cropping system. This study evaluated effect of four cropping systems on soil organic carbon (SOC), total vesicular arbuscular mycorrhiza (VAM) spore count, soil microbial biomass carbon (SMBC), soil microbial biomass nitrogen (SMBN) and soil microbial biomass phosphorus (SMBP) within two locations (Nsukka and Moniya) of the derived savannah zone of Nigeria. The experiment was set up in a 4 x 2 x 2 factorial in randomized complete block design (RCBD), represent- ing 4 cropping systems, 2 fertilizer application rates (0 and 60 kg N ha-1) and 2 residue management methods (incorporated and not-incorporated). This set-up was replicated three times and the experiment was repeated the following year (2008 and 2009). At the end of the experiment, soil samples for laboratory analy- ses were collected from 0 – 20 cm soil depth using auger. The result showed that SOC was not significantly (p≤0.05) affected by all factors and their interaction at both locations. In Nsukka, cropping systems and their interaction with residue management significantly (p≤0.05) affected SMBP and total VAM spore count. Continuous maize had the highest total VAM spore count (280), which was sta- tistically the same with cowpea/maize rotation (277). Soybean/maize cropping system had the least value (259). Velvet bean/maize cropping system had the highest SMBP (0.0007 mg g-1). In Moniya, SMBC, SMBN and SMBP were sig- nificantly (p≤0.05) affected by the cropping systems with velvet bean/maize plots having highest values (0.053, 0.006, 0.0007 mg g-1). Residue incorporation and fertilizer application (60 kg ha-1) significantly (p≤0.05) increased SMBC and SMBN at Moniya. Interaction between cropping systems and residue manage- ments at this location also significantly affected SMBC, SMBP and SMBC. In this study, SMBP distinguished the effect of the factors on soil quality better than the other measured parameters. Velvet bean-based cropping system improved soil microbial properties better than other cropping systems.
SISTEM PENDUKUNG KEPUTUSAN PENENTUAN DAERAH TANAMAN KELAPA SAWIT DENGAN METODE PROMETHEE
Authors: , Sukri
Published: August 2019

Saat ini kelapa sawit bukan hal asing lagi kita dengar, kelapa sawit adalah tanaman yang hampir semua bagian dari tanaman kelapa sawit bisa di manfaatkan seperti buah bisa menghasilkan minyak, sabun, dan produksi lainnya yang bernilai jual tinggi, sehingga banyak para petani atau pengusaha beralih menanan kelapa sawit. Untuk menanam kelapa sawit bukan semudah menanam tanaman lainnya karena salah memilih lokasi bisa mengurangi hasil produksi. Selama ini proses penentuan daerah tanaman kelapa sawit dilakukan dengan cara konsultasi dan membandingkan daerah mana yang paling cocok untuk penanaman kelapa sawit dengan mempertimbangkan persentase yang paling bagus untuk penanaman kelapa sawit dengan hitungan dan pilihan urutan prioritas secara menual. Hal ini terkadang memakan waktu yang cukup lama dan tingkat ketelitian kurang bagus dalam mengambil keputusan. Aplikasi ini menggunakan metode waterfall dan teknik pengambilan keputusan Promethee (Preference Rangking Organization Method For Enrichment Evaluation) yang merupakan suatu metode penentuan urutan (prioritas) dalam analisis multikriteria. Kriteria yang digunakan adalah Bibit, Iklim, Tanah, Administrasi, Hama, dan bentuk wilayah. Aplikasi ini memberikan solusi permasalahan yang timbul khususnya penentuan daerah tanaman kelapa sawit. Dengan menggunkan teknik pengambilan keputusan promethee dapat membantu para petani atau pengusaha pengambilan keputusan berdasarkan hasil parameter yaitu rangking dan persentase setiap kabupaten atau alternatif.
An International Online Survey on Public Attitudes Towards the Keeping of Whales and Dolphins in Captivity
Authors: Naylor Whitney , Parsons E. C. M.
Published: August 2019

In 2015, an international online survey was conducted to investigate public attitudes on keeping cetaceans in captivity (N = 858). Respondents were significantly (p < 0.001) more likely to be opposed to displaying dolphins and whales in marine theme parks and aquariums
(opposed to captive display: 54.4%; support captive display: 45.5%). Only 5% of respondents from the US stated they "strongly support" (with 33.3% "support") keeping dolphins and whales in marine theme parks and aquariums, while 21% of participants from India did so (43.4% "support"). Participants
that support cetaceans in captivity were significantly more likely to believe cetacean conservation is not important. Six times as many respondents (or 86%) preferred to view cetaceans in the wild via whale watching (61% preferring boat based, 25% land based) versus in captivity. Respondents
from the US were less likely to prefer watching cetaceans in a marine theme park (9%) than those from India (26%). Almost 80% of respondents objected to capturing free-ranging dolphins and whales for display in zoos and aquariums. Only 19% of respondents indicated approval for dolphins performing
shows involving tricks for human enjoyment, while 85% supported keeping dolphins in captivity when they are sick or injured. Eighty percent supported captive research that benefited conservation of free-ranging populations, dropping to 60% when the research supported the development of captive
husbandry methods. Seventy percent of participants were opposed to keeping cetaceans in concrete tanks, versus 53% who were opposed to sea pen enclosures as well. Respondents who believed dolphin and whale conservation was not important were significantly more likely to oppose keeping captive
dolphins for research benefiting conservation in the wild. Moreover, respondents who felt dolphin and whale conservation was only "slightly important" were significantly more like to support keeping captive cetaceans for entertainment purposes.
A Superluminous Supernova in High Surface Density Molecular Gas within the Bar of a Metal-rich Galaxy
Authors: Arabsalmani M. , Roychowdhury S. , Renaud F. , Cormier D. , Floc’h E. Le , Emsellem E. , Perley D. A. , Zwaan M. A. , Bournaud F. , Arumugam V. , Møller P.
Published: August 2019

We report the Atacama Large Millimeter/submillimeter Array observations of the metal-rich host galaxy of superluminous supernova (SLSN) PTF10tpz, a barred spiral galaxy at z = 0.03994. We find the CO(1–0) emission to be confined within the bar of the galaxy. The distribution and kinematics of molecular gas in the host galaxy resemble gas flows along two lanes running from the tips of the bar toward the galaxy center. These gas lanes end in a gaseous structure in the inner region of the galaxy, likely associated with an inner Lindblad resonance. The interaction between the large-scale gas flows in the bar and the gas in the inner region plausibly leads to the formation of massive molecular clouds and consequently massive clusters. This in turn can result in formation of massive stars, and thus the likely progenitor of the SLSN in a young, massive cluster. This picture is consistent with SLSN PTF10tpz being located near the intersection regions of the gas lanes and the inner structure. It is also supported by the high molecular gas surface densities that we find in the vicinity of the SLSN, surface densities that are comparable with those in interacting galaxies or starburst regions in nearby galaxies. Our findings therefore suggest in situ formation of massive stars due to the internal dynamics of the host galaxy and also lend support to high densities being favorable conditions for formation of SLSN progenitors.
X-Ray Spectral Evolution of PSR J2032+4127 during the 2017 Periastron Passage
Authors: Pal Partha Sarathi , Tam P. H. T. , Cui Y. , Li K. L. , Kong A. K. H. , Güngör C.
Published: August 2019

We report X-ray data analysis results obtained from Chandra, XMM-Newton, Nuclear Spectroscopic Telescope Array Mission (NuSTAR), and Swift observations of PSR J2032+4127 taken before, during, and after the periastron on 2017 November 13. We found the first clear evidence of a change in the X-ray spectral index over the passage period, thanks to a broad and sensitive spectral coverage by XMM-Newton and NuSTAR. We analyzed the joint XMM-Newton and NuSTAR observation epochs with power-law and broken power-law models. We have obtained changes in spectral parameters before and after the periastron passage for both models. The spectra get softened after the passage. The evolution of the spectral index and break energy before and after the periastron may indicate a change in the physical state of shock-accelerated electrons.
The Impact of White Dwarf Natal Kicks and Stellar Flybys on the Rates of Type Ia Supernovae in Triple-star Systems
Authors: Hamers Adrian S. , Thompson Todd A.
Published: August 2019

SNe Ia could arise from mergers of carbon–oxygen white dwarfs (WDs) triggered by Lidov–Kozai (LK) oscillations in hierarchical triple-star systems. However, predicted merger rates are several orders of magnitude lower than the observed SNe Ia rate. The low predicted rates can be attributed in part to the fact that many potential WD-merger progenitor systems, with high mutual orbital inclination, merge or interact before the WD stage. Recently, evidence was found for the existence of natal kicks imparted on WDs with a typical magnitude of 0.75 km s−1. In triples, kicks change the mutual inclination and in general increase the outer orbit eccentricity, bringing the triple into an active LK regime at late stages and avoiding the issue of pre-WD merger or interaction. Stars passing by the triple can result in similar effects. However, both processes can also disrupt the triple. In this paper, we quantitatively investigate the impact of WD kicks and flybys on the rate of WD mergers using detailed simulations. We find that WD kicks and flybys combine to increase the predicted WD merger rates by a factor of ∼2.5, resulting in a time-integrated rate of ≈1.1 × 10−4
M
⊙
−1. Despite the significant boost, the predicted rates are still more than one order of magnitude below the observed rate of ∼10−3
M
⊙
−1. However, many systematic uncertainties still remain in our calculations, in particular the potential contributions from tighter triples, dynamically unstable systems, unbound systems due to WD kicks, and quadruple systems.
Implications of Symmetry and Pressure in Friedmann Cosmology. I. Formalism
Authors: Croker K. S. , Weiner J. L.
Published: August 2019

We show that derivation of Friedmann’s equations from the Einstein–Hilbert action, paying attention to the requirements of isotropy and homogeneity during the variation, leads to a different interpretation of pressure than what is typically adopted. Our derivation follows if we assume that the unapproximated metric and Einstein tensor have convergent perturbation series representations on a sufficiently large Robertson–Walker coordinate patch. We find the source necessarily averages all pressures, everywhere, including the interiors of compact objects. We demonstrate that our considerations apply (on appropriately restricted spacetime domains) to the Kerr solution, the Schwarzschild constant-density sphere, and the static de-Sitter sphere. From conservation of stress–energy, it follows that material contributing to the averaged pressure must shift locally in energy. We show that these cosmological energy shifts are entirely negligible for non-relativistic material. In relativistic material, however, the effect can be significant. We comment on the implications of this study for the dark energy problem.
Thermal Infrared Imaging of MWC 758 with the Large Binocular Telescope: Planetary-driven Spiral Arms?
Authors: Wagner Kevin , Stone Jordan M. , Spalding Eckhart , Apai Daniel , Dong Ruobing , Ertel Steve , Leisenring Jarron , Webster Ryan
Published: August 2019

Theoretical studies suggest that a giant planet around the young star MWC 758 could be responsible for driving the spiral features in its circumstellar disk. Here, we present a deep imaging campaign with the Large Binocular Telescope with the primary goal of imaging the predicted planet. We present images of the disk in two epochs in the L′ filter (3.8 μm) and a third epoch in the M′ filter (4.8 μm). The two prominent spiral arms are detected in each observation, which constitute the first images of the disk at M′, and the deepest yet in L′ (ΔL′ = 12.1 exterior to the disk at 5σ significance). We report the detection of an S/N ∼ 3.9 source near the end of the Southern arm, and, from the source’s detection at a consistent position and brightness during multiple epochs, we establish a ∼90% confidence-level that the source is of astrophysical origin. We discuss the possibilities that this feature may be (a) an unresolved disk feature, and (b) a giant planet responsible for the spiral arms, with several arguments pointing in favor of the latter scenario. We present additional detection limits on companions exterior to the spiral arms, which suggest that a ≲4 M
Jup planet exterior to the spiral arms could have escaped detection. Finally, we do not detect the companion candidate interior to the spiral arms reported recently by Reggiani et al., although forward modeling suggests that such a source would have likely been detected.
X-Ray and Gamma-Ray Emission from Core-collapse Supernovae: Comparison of Three-dimensional Neutrino-driven Explosions with SN 1987A
Authors: Alp Dennis , Larsson Josefin , Maeda Keiichi , Fransson Claes , Wongwathanarat Annop , Gabler Michael , Janka Hans-Thomas , Jerkstrand Anders , Heger Alexander , Menon Athira
Published: August 2019

During the first few hundred days after the explosion, core-collapse supernovae (SNe) emit down-scattered X-rays and gamma-rays originating from radioactive line emissions, primarily from the 56Ni → 56Co → 56Fe chain. We use supernova (SN) models based on three-dimensional neutrino-driven explosion simulations of single stars and mergers to compute this emission and compare the predictions with observations of SN 1987A. A number of models are clearly excluded, showing that high-energy emission is a powerful way of discriminating between models. The best models are almost consistent with the observations, but differences that cannot be matched by a suitable choice of viewing angle are evident. Therefore, our self-consistent models suggest that neutrino-driven explosions are able to produce, in principle, sufficient mixing, although remaining discrepancies may require small changes to the progenitor structures. The soft X-ray cutoff is primarily determined by the metallicity of the progenitor envelope. The main effect of asymmetries is to vary the flux level by a factor of ∼3. For the more asymmetric models, the shapes of the light curves also change. In addition to the models of SN 1987A, we investigate two models of SNe II-P and one model of a stripped-envelope SN IIb. The Type II-P models have observables similar to those of the models of SN 1987A, but the stripped-envelope SN model is significantly more luminous and evolves faster. Finally, we make simple predictions for future observations of nearby SNe.
Spiradiclis tubiflora (Rubiaceae), a new cave-dwelling species from southern China
Authors: Wu Lei , Wang Bing-Mou , Pan Bo , Yu Xun-Lin
Published: August 2019

Spiradiclis tubiflora, a new Rubiaceae species, is described from a limestone area of southern China. It is similar to Spiradiclis glandulosa and S. umbelliformis, but differs from the latter two in its linear stipule, short peduncle and tubular-funnelform corolla with a distinctively enlarged tube. The colour photograph, illustrations, detailed descriptions and conservation status of the new species are provided.
A new subspecies of Peucedanum officinale L. subsp. album (Apiaceae) from the eastern part of the Iberian Peninsula
Authors: Martínez-Fort Javier , León Maela , Donat-Torres Maria P.
Published: August 2019

We describe Peucedanum officinale L. subsp. album Martínez-Fort & Donat-Torressubsp. nov., in which we grouped the thermomediterranean populations scattered along the eastern part of the Iberian Peninsula. The characters that differentiate this new subspecies from other infraspecific taxa inPeucedanum officinaleare its canaliculated leaflet, the inflorescences much branched and lack of dominant terminal umbels, the umbels are few rayed, sometimes sessile and lateral, the petals are white and the fruit pedicels short, the same or shorter in length than the fruit. We provide here a full description of the new subspecies based on herbarium specimens and field measurements, as well as providing dichotomous keys to the subspecies withinP. officinale. In addition, we provide a comparison of the ITS sequences of nrDNA with the most closely related taxons.
Cannabinoids and Mental Health, Part 1: The Endocannabinoid System and Exogenous Cannabinoids
Authors: Penn Andrew
Published: August 2019

The increasing public acceptance of cannabis and the proliferation of cannabis products in the marketplace has coincided with more patients using the drug as a substitute for psychiatric medications or as an adjunctive treatment modality for psychiatric conditions, despite limited evidence of efficacy. With a goal of furthering harm-reduction efforts in psychiatric nursing, the current article reviews the fundamentals of the endocannabinoid system in humans and the exogenous phytocannabinoids that act on this regulatory neurotransmitter system. The basics of cannabis botany are also reviewed to help nurse clinicians understand the heterogeneous nature of cannabis products. This foundational knowledge will help improve clinical interactions with patients who use cannabis and provide the necessary understanding of cannabinoids needed to undertake further scientific query into their purported benefits in psychiatric disease states. [
Journal of Psychosocial Nursing and Mental Health Services, 57
(9), 7–10.]
Secuencia de ocupación y desarrollo constructivo del asentamiento de Caramoro I (Elche, Alicante): aportaciones a la arquitectura argárica
Authors: Jover Maestre Francisco Javier , Pastor Quiles María , Basso Rial Ricardo E. , Martínez Monleón Sergio , López Padilla Juan Antonio
Published: August 2019

A pesar de que la cultura de El Argar es una de las entidades arqueológicas mejor conocidas del ámbito peninsular, no son muchos los trabajos efectuados sobre los aspectos arquitectónicos y del desarrollo constructivo de los asentamientos argáricos excavados. En este artículo se presentan las formas arquitectónicas, las técnicas y materiales constructivos empleados y la secuencia de ocupación del asentamiento de Caramoro I (Elche, Alicante) a partir del análisis estratigráfico y de estructuras conservadas, reforzada y avalada con una serie de dataciones absolutas sobre muestras de vida corta. Los resultados obtenidos han mostrado que Caramoro I fue un asentamiento de carácter agropecuario, ubicado en los límites fronterizos septentrionales de El Argar, que fue reformado con la intención de mejorar su protección y defensa, a partir de la fortificación de su zona de acceso. Sus concomitancias con otros asentamientos similares en territorios de frontera más orientales vienen a mostrar su carácter logístico.