bluuebunny/crossref_metadata_2025 huggingface dataset:
The Interplay of Pressure and Doping Effects on BaFe2As2 Superconductors
Authors:   , Bioletti Gabriel
Published: March 2022

The study of iron-based superconductors exists at the intersection of some of the most fascinating disciplines in physical sciences, with avenues to reach illuminating conclusions in the study of magnetism, quantum physics, materials science, and applications at the forefront of technical engineering. The youth of the field is apparent, having only been discovered in 2008, with many open questions as to how the many facets of their normal-state and superconducting properties intermingle, and behave under the extreme conditions made imperative by their significant promise of applicability in magnet technologies.

This thesis hones in on the study of BaFe2As2 and the way in which isovalent doping with phosphorous, charge doping with nickel, and the application of intermediate amounts of hydrostatic pressure (1.2 GPa) affect it’s superconducting critical current density (Jc) and superconducting critical temperature (Tc). This avenue of study already provides a multitude of interesting results.

We uncover a significantly orientation dependent sharp peak in the Ni- doping dependent phase diagram, coincident with a large increase in the susceptibility of Jc to applied pressure. Pressure applied at the optimal doping of Ba(Fe0.95Ni0.05)2As2 result in increases of 300 %, drastically up from 50 % Ba(Fe0.95Ni0.048)2As2, exemplifying a behaviour correlated with the posited quantum critical point (QCP) at this doping. The fact that this striking behaviour only manifests in a field oriented perpendicular to the materials ab-plane at ambient pressure, reinforced by the application of Dew-Hughes and strong pinning models, makes a strong case for it being a phenomena dependent on the coexistence of both δTc and δl forms of pinning.

The behaviour of the phosphorous doped material is immediately contrast- ing, with changes in Jc completely correlated with changes in Tc. The behaviour of Tc under applied pressures illuminates a non-linear response at low pressures due to the difference in compressibility of orthogonal lattice parameters along the c and a axes. This effect results in huge suppression of Tc with the optimally doped sample displaying a shift from Tc = 29 to 15.5 K at a rate of 35 K/GPa. Further analysis shows that this may be re- lated to a softening in the structural lattice induced by the P-doping.

This work exemplifies the complex nature of the interacting material and superconducting properties of BaFe2As2, and will prove useful to any future research attempting to optimise BaFe2As2 for future application as well as filling out the body of work necessary to understand the nature of superconductivity in iron-based superconductors.
Aplikasi baby massage pada asuhan keperawatan bayi sehat untuk meningkatkan kualitas tidur dan kelancaran buang air besar
Authors: Alfiyanti Dera , Samiasih Amin , Prastiwi Harvina Sindy
Published: March 2022

Pijat bayi sebagai salah satu bentuk bahasa sentuhan ternyata memiliki efek yang positif untuk pertumbuhan dan perkembangan bayi. Pelaksanaan pijat bayi oleh dukun bayi banyak yang tidak sesuai dengan teknik pijat bayi yang terdapat dalam pedoman pijat bayi menurut kesehatan. Dalam rangka meningkatkan sentuhan fisik seperti belaian, pelukan, dan pijatan lembut yang akan meningkatkan ikatan kasih sayang antara ibu dan bayi. Tujuan dari studi kasus ini adalah untuk mengetahui efektifitas pijat bayi terhadap peningkatan lama waktu tidur dan kelancaran buang air besar (BAB) pada bayi. Jenis studi kasus ini merupakan descriptif study yaitu menerapkan studi kasus dengan proses tindakan keperawatan berupa intervensi, implementasi, dan evaluasi. Sample berjumlah 4 bayi dengan 2 bayi mengalami gangguan tidur dan 2 bayi mengalami gangguan buang air besar (konstipasi). Tempat studi kasus di lakukan di wilayah kerja puskesmas Kedungmundu. Hasil penerapan pijat bayi yang diterapkan selama 6 hari/pasien tersebut terbukti sangat efektif untuk diaplikasikan di wilayah kerja puskesmas Kedungmundu, dari ke empat bayi tersebut lebih tenang, tidak rewel, kebutuhan tidur terpenuhi dan BAB lancar
O impacto das marcas IFRN e incubadora ITNC no desenvolvimento de startups
Authors:   Hochschule Rhein-Waal, Pereira Amanda Mitchell de Morais , Tacconi Marli de Fátima Ferraz da Silva ,   IFRN, Tacconi Neto Ernesto Alexandre ,   IFRN
Published: March 2022

As empresas se estabelecem como essenciais para o desenvolvimento econômico. Por isso, é importante apoiar essas instituições, principalmente as de pequeno porte, que tendem a apresentar mais dificuldades em se tornarem competitivas. As incubadoras tecnológicas se mostram mecanismo eficiente que conecta micro e pequenas empresas às instituições educacionais, facilitando o acesso a conhecimentos tecnológicos e a cooperação. Um dos elementos da incubadora universitária, potencialmente valorizador das startups é a associação a marca corporativa como importante extensão de influência, indo, além disso, e servindo como selo de garantia de qualidade técnica. O objetivo da investigação se centra em analisar a percepção das startups sobre o impacto das marcas do IFRN (Instituto Federal de educação, Ciência e Tecnologia do Rio Grande do Norte) e da ITNC (Incubadora Tecnológica Natal Central) no desenvolvimento dos seus negócios. A metodologia se concentrou em estudo exploratório e descritivo, com abordagem qualitativa e quantitativa. Coletaram-se os dados por meio de questionário e roteiro semiestruturado, atingindo 13 empresas incubadas. Trataram-se os dados por meio da Análise de Conteúdo e da Análise Descritiva. Os resultados revelaram que a estrutura ofertada e as marcas do IFRN e do ITNC se configuraram os aspectos mais importantes como motivadores à escolha da incubação. O grau de satisfação das empresas incubadas com a ITNC foi alto e a marca IFRN foi a mais bem avaliada.
PERENCANAAN BENDUNG MENENG DI SUNGAI DOLOK KABUPATEN DEMAK
Authors: Al Fattah Zihad , Ikhwanudin Ikhwanudin , Husodo Ibnu Toto
Published: March 2022

Sungai merupakan bagian penting dalam setiap aspek. Sungai dimanfaatkan untuk irigasi, pembangkit listrik tenaga air, air baku dan perikanan. Di Indonesia sungai sering digunakan untuk pengairan sawah, oleh karena itu Indonesia memiliki sektor pertanian yang baik. Salah satu sungai yang digunakan untuk irigasi adalah sungai Dolok di kabupaten Demak, akan tetapi ketika musim kemarau kebutuhan air untuk sawah tidak mencukupi. Untuk mencukupi daerah irigasi Dolok, dibutuhkan konstruksi bendung menaikkan muka air sungai sehingga dapat memenuh kebutuhan air untuk sawah di daerah irigasi Dolok. Pada perencanaan bendung ini pembahasan meliputi analisis hidrologi, analisis hidrolika dan analisis stabilitas bendung. Analisis hidrologi meliputi curah hujan rencana dan debit sungai rencana (Q50). Analisis hidrolika meliputi perencanaan konstruksi utama bendung, perencanaan kolam olak, perencanaan rip – rap dan perencanaan pintu pengambilan. Analisis stabilitas bendung harus aman meliputi aspek stabilitas terhadap geser, stabilitas terhadap guling, stabilitas terhadap eksentrisitas dan stabilitas terhadap daya dukung tanah. Perhitungan debit banjir menggunakan metode hesper dengan periode ulang 50 tahun didapatkan hasil Q50 = 96,843 m3/dtk. Perencanaan Bendung Meneng menggunakan bendung tetap tipe ogee nomor 4 dengan lebar efektif bendung 12,97 meter, kolam olak tipe bak tenggelam dengan jari – jari 2,67 meter.Kata Kunci: Hidrolika, Hidrologi, Stabilitas Bendung.
Pengaruh Parkir Pada Badan Jalan Mt. Haryono Terhadap Kinerja Ruas Jalan
Authors: Al Fikri Afrizal Yusuf , Septiari Andik , Rizani Mohammad Debby , Ariawan Donny
Published: March 2022

Minimnya ruang parkir yang disediakan Pemerintah Kota Semarang di ruas Jalan MT. Haryono depan Pasar Peterongan menyebabkan masyarakat mengunakan bahu jalan untuk dijadikan tempat parkir kendaraan (on street parking) sehingga berdampak pada pengurangan tingkat penggunaan jalan dan pelayanan jalan yang hanya melewati ruas jalan tersebut menerima dampak negatif berupa waku tempuh yang lebih lama yang pada akhirnya menimbulkan penambahan Biaya Operasional Kendaraan (BOK). Selain itu, on street parking juga dilakukan oleh angkutan umum yang menaikkan dan menurunkan penumpang di depan Pasar Peterongan yang diakibatkan karena kurangnya tempat pemberhentian angkutan (halte). Berdasarakan penelitian yang dilakukan pada ruas jalan MT. Haryono tingkat pelayanan terburuk terdapat pada pukul 07.30-08.30 dengan nilai ratio 1,14 dan mempunyai kecepatan rata-rata 43 km/jam dengan tingkat pelayanan pada level F. Tingkat pelayanan pada level F juga terjadi pada pukul 15.30-16.30 dan pukul 16.30-17.30 dengan nilai ratio masing-masing adalah 1,01 dan 1,11. Angkutan umum paling banyak menggunakan on street parking terjadi pada pukul 07.30-08.30 dengan jumlah angkutan umum masuk sebanyak 141 kendaraan dan angkutan umum keluar sebanyak 127 kendaraan, sedangkan angkutan umum paling sedikit menggunakan on street parking terjadi pada pukul 17.30-18.30 dengan jumlah angkutan umum masuk sebanyak 46 kendaraan dan angkutan umum keluar sebanyak 38 kendaraan. Biaya kemacetan yang akan dikaji dalam penelitian ini adalah Biaya Operaional Kendaraan (BOK) akibat penurunan kecepatan dengan menggunakan metode HDM VOC (Highway Design and Maintenanc Standart Vehicle Operating Cost). Penambahan Biaya Operasional Kendaraan (BOK) atau external cost yang dikeluarkan adalah Rp. 168,51- selama 12 jam penelitian.Kata Kunci : Parkir, Angkutan Umum, BOK, Ruas Jalan.
ANALISA AKSES LAYANAN PENGELOLAAN AIR LIMBAH DI WILAYAH PERKOTAAN (STUDI KASUS KOTA MOJOKERTO)
Authors: Nugroho Hengky Setyo , Rizani Mohammad Debby
Published: March 2022

Permasalahan pengelolaan air limbah di wilayah perkotaan terjadi karena beberapa faktor antara lain karena pendanaan yang kurang, perencanaan yang tidak tepat, dan karena kurangnya kesadaran masyarakat sebagai pelaku utama di urusan air limbah domestik. Area penelitian yang diambil peneliti adalah Kota Mojokerto. Penelitian ini bertujuan untuk merumuskan sebuah konsep pengelolaan air limbah domestik di wilayah perkotaan. Menurut data dari Badan Pusat Statistik Kota Mojokerto, kepemilikan tangki septik rumah mencapai angka 89,83%. Metode yang digunakan peneliti adalah menggabungkan hasil analisa zona dan sistem dan hasil dari analisa SWOT. Untuk analisa zona dan sistem peneliti menggunakan data skunder antara lain kerapatan penduduk, resiko kesehatan lingkungan peruntukan kawasan CBD (Central Bussiness District), dan kondisi tanah. Analisa ini mempunyai lingkup area dengan level kelurahan, untuk semua wilayah kelurahan di Kota Mojokerto. Untuk analisa SWOT, peneliti menggunakan data penyebaran kuesioner kepada responden masyarakat dan wawancara kepada responden dari pemerintah dan masyarakat. Hasil dari analisa zona dan sistem menunjukkan bahwa terdapat 3 (tiga) sistem yang disarankan untuk diterapkan di Kota Mojokerto yaitu Sistem Setempat Rumah Tangga (on-site individu) di 2 (dua) kelurahan, Sistem Setempat Rumah Tangga atau Komunal (on-site individu / komunal) di 9 (sembilan) Kelurahan, dan Sistem Terpusat Jangka Menengah (off-site medium) di 7 (tujuh) Kelurahan. Analisa SWOT menunjukkan bahwa akses masyarakat terhadap layanan pengelolaan air limbah domestik di Kota Mojokerto masih memerlukan peningkatan di aspek pendanaan dan aspek partisipasi masyarakat.Kata kunci: air limbah domestik, perkotaan, zona air limbah
PENJADWALAN PROYEK DENGAN METODE ACTIVITY ON ARROW (AOA) PADA PEMBANGUNAN ECOBRICK DLH SEMARANG
Authors: Chasanah Ummi , Kiswati Sri , Soehartono Soehartono
Published: March 2022

Penjadwalan suatu konstruksi dengan adanya berbagai kendala diantaranya keterlambatan pekerjaan yang mengakibatkan keterlambatan waktu dari waktu yang direncanakan. Metode penelitian yang digunakan untuk mendapatkan data data dilakukan secara langsung dari objek penelian tersebut. Sehingga penelitian digunakan dengan metode AOA (Activity On Arrow). Metode penulisan ini di awali dengan perhitungan ES, LS, EF, LF, dan kemudian AOA.Berdasarkan hasil analisa yang digunakan, maka kebutuhan dan pelaksanaan proyek sudah dikategorikan cukup baik, namun kurang di dukung pengawasan dengan pengawasan yang tepat. Dengan penerapan metode AOA yang tepat, maka dapat di ketahui besaran waktu yang diperlukan untuk setiap kegiatan serta dapat diketahui lintasan kritis dari proses pekerjaan tersebut. Adapun pengawasan yang tepat diperlukan saat metode AOA tersebut terdapat jalur / lintasan kritis. Dengan analisis metode AOA maka diperlukan waktu 112 hari kalender.Kata kunci: Perencanaan, Activity On Arrow, jalur kritis, waktu
STRUKTUR KUDA-KUDA DAN RANGKA ATAP SEBAGAI ELEMEN PENDUKUNG ARSITEKTUR GEDUNG OLAH RAGA
Authors: Muafani Muafani , Purwanto LMF
Published: March 2022

AbstrakSistem teknologi bangunan menjadi bagian tak terpisahkan dari proses perancangan sebuah bangunan, karena dalam menghasilkan sebuah bangunan yang sempurna tentunya harus dilengkapi dengan komponen-komponen yang mendukung kinerja dari bangunan tersebut sesuai fungsinya. Dalam arsitektur, struktur dan konstruksi juga dapat berperan sebagai sebuah elemen estetika. Sehingga dengan menampilkan Struktur sebagai elemen estetika tentunya akan mampu memunculkan kebenaran arsitektur dan kejujuran sistemnya. Untuk menghasilkan rancangan struktur sebagai elemen pendukung arsitektur, tentunya perlu mengeksplorasi potensi struktur untuk memperkaya arsitektur. Sehingga nantinya akan mampu untuk meningkatkan persepsi arsitek tentang struktur sebagai elemen integral dari arsitektur dan bukan hanya sebagai terapan teknologi saja. Oleh karena itu dengan metode tersebut diharapkan dapat mengubah pandangan tentang struktur sebagai komponen teknis arsitektur. Sehingga akan menggambarkan bahwa struktur sebagai elemen arsitektur yang sangat diperlukan dan terintegrasi secara menyeluruh serta terlibat dalam pembuatan arsitektur yang memainkan peran penting yang melibatkan indra, hati dan pikiran pengguna bangunan. Dan bagaimana struktur dapat membantu untuk menambahkan serta memperkaya nilai estetika dan fungsional pada karya arsitek.Kata kunci: Struktur, sistem, elemen, arsitektur.
STRATEGI PELAYANAN PENINGKATAN KUALITAS KINERJA PADA MASA PANDEMI COVID-19 DI STASIUN TAWANG SEMARANG BERDASARKAN ANALISIS SWOT
Authors: Putriani Putriani , Oktavia Afifah Maulimatun , Rizani Mohammad Debby , Yudaningrum Farida
Published: March 2022

AbstractTawang Semarang Station is included in the large class type A. To determine the performance of station services carried out during the COVID-19 pandemic, which is optimal based on the level of satisfaction of service users with the services of Tawang Semarang Station. Minimum Service Standards, abbreviated as SPM, are the minimum service standards that must be met by service providers in providing services to service users, which must be equipped with benchmarks used as guidelines for service delivery and a reference for assessing service quality as obligations and promises of service providers to the community in the context of quality service, fast, easy, affordable and measurable. As is the case with PT KAI (Persero) Operational Area (Daop) 4 Semarang Tawang Station where SPM checking facilities have been carried out. This study uses quantitative and qualitative methods with SWOT analysis to determine internal factors and external factors that can affect service effectiveness and to determine the performance quality of Semarang Tawang Station. The internal factors in question are strong (S) and weak (W), while external factors are opportunities (O) and threats (T). The results of the analysis of service performance in improving the quality of performance obtained a Strength-Opportunity strategy by using strength to take advantage of all existing opportunities so that the company can have an advantage over other companies' competition.Keywords: SWOT Analysis, Performance quality, Semarang Tawang Station.
EFEKTIVITAS PENGGUNAAN JALUR LAMBAT SULTAN TRENGGONO DAN SULTAN FATTAH DEMAK DI KABUPATEN DEMAK
Authors: Pratama Wahyu Bagus , Anindia Rossa Varadella , Rizani Mohammad Debby , Yudaningrum Farida
Published: March 2022

AbstractAlong the sultan trenggono demak − sultan fatah demak road, many are found slow pathways and sidewalks on both the left and the right. The sultan trenggono demak − sultan fatah demak road is one of the national access roads located in the central province of Java and has a function as a primary artery road. The purpose of the existence of a slow line on sultan trenggono demak demak fatah sultan's road is to smooth and minimize the fatality of the accident on the fast path, but the use of the slow line is not working as it should. The use of the roads has largely been affected by road damage, such as rolling asphalt and potting, so this can disturb the movement of road users. Thus, research was made to review the effectiveness of the slow path and to function well on the slow line of sultan trenggono demak road.From the level of traffic obtained from the side barriers that the road of sultan trenggono demak demak sultan's fatah demak was extremely low (vl). Compared with analysis of the characteristics of the accident in the slow path and fast track from 2016 2020, the rate of the accident rate continues to decline by 2021, which means the use of the slow line effectively keeps the rate downKeywords: User Rating, Slow Lanes, Effectiveness
Prioritizing Barriers and Strategies Mapping in Business Intelligence Projects Using Fuzzy AHP TOPSIS Framework in Developing Country
Authors: Hapsari Ika Chandra , Anandya Rayhan , Hidayanto Achmad Nizar , Budi Nur Fitriah Ayuning , Phusavat Kongkiti
Published: March 2022

Business Intelligence (BI) is an essential technology in an increasingly competitive landscape since it helps make decisions more accurately. To achieve an effective BI implementation, the organization must formulate the right strategy to overcome its challenges. This research aimed to develop a framework to map barriers into strategies using qualitative and quantitative methods. The qualitative approach is driven by interviewing BI experts to validate the barriers and strategies previously obtained. Based on the interview, there are 19 barriers and 9 strategies that could be used. The quantitative approach compiles a priority list of the most significant barriers and the most effective strategies to overcome these barriers using fuzzy AHP TOPSIS, an MCDM method to eliminate inconsistencies during ranking. The results indicate that the lack of collaboration between the IT and BI departments, the BI implementation demands to be done quickly, and low data quality are the main barriers that hinder BI's success. This research also found that business people's involvement in a BI project is the best strategy to overcome the obstacles. The chances of a successful BI implementation will increase by having good cooperation between IT and business units within the company. Doi: 10.28991/ESJ-2022-06-02-010 Full Text: PDF
PERKEMBANGAN BAHAN BAKAR SOLAR DAN SPESIFIKASI WWFC SERTA PENGARUHNYA BAGI INDONESIA
Authors: Semar Djainuddin
Published: March 2022

Desain motor diesel saat ini cenderung memakai prinsip pembakaran miskin, motor multikatup, turbo/supercharging, injeksi bahan bakar multiport, kenaikan perbandingan kompresi, knock limiting control dan multi bahan bakar. Disamping itu pembuat mesin berusaha meningkatkan kinerja (performance) mesin, hemat bahan bakar dan mengurangi kadar emisi gas buangnya
Pembuatan Gemuk Lumas Bio Menggunakan Thickener Berbasis 12-Hsa Produksi Lokal
Authors: Fibria Milda , R Catur Yuliani , Purnami Tri
Published: March 2022

Gemuk lumas merupakan kombinasi minyak lumas dan bahan pengental (thickener). Thickener memberikan karakteristik kekakuan terhadap gemuk lumas yang merupakan ukuran resistensi terhadap deformasi oleh gaya yang diberikan. Thickener dibuat dengan mereaksikan asam 12-Hidroksistearat (HSA) dan litium hidroksida untuk menghasilkan gemuk lumas yang memiliki resistensi yang tinggi terhadap air. Kebutuhan terhadap asam 12-hidroksistearat (HSA) sebagai bahan thickener gemuk lumas cukup signifi kan. Namun produk ini belum diproduksi di Indonesia, sehingga industri gemuk lumas masih mengandalkan produk impor. Padahal bahan baku yang digunakan yaitu minyak jarak, justru banyak diproduksi di dalam negeri. Sehingga dibuatlah asam 12-hidroksistearat dari minyak jarak yang diproduksi di laboratorium pelumas PPPTMGB Lemigas. Hal ini imaksudkan untuk mengurangi impor 12-HSA, menggantinya dengan produk lokal. Berdasarkan hasil penelitian mengenai pembuatan gemuk lumas bio menggunakan thickener (lokal) berbasis minyak jarak, dapat disimpulkan bahwa, formulasi gemuk lumas bio menggunakan thickener berbasis minyak jarak produk lokal memiliki performa yang setara dengan produk impor. Bahkan apabila dilakukan treatment dengan baik maka akan dapat menghasilkan gemuk lumas yang lebih unggul dibanding penggunaan thickener dengan bahan baku impor. Pemanfaatan minyak jarak dalam penelitian menghasilkan peningkatan TKDN produk mencapai 95%.
Simulasi Percobaan Coreflooding Injeksi Surfaktan Polimer Pada Batuan Reservoir
Authors: Tobing Edward ML
Published: March 2022

Dalam beberapa tahun belakangan ini injeksi surfaktan-polimer banyak diterapkan untuk dapat meningkatkan produksi lapangan minyak tua, karena mempunyai efek sinergis dari penurunan tegangan antar muka dan kontrol mobilitas dengan efek samping yang minimal. Tulisan ini membahas tentang pengembangan model simulasi injeksi surfaktan-polimer dengan menggunakan data percobaan di laboratorium, dan validasi dari model simulasi tersebut dilakukan dengan cara menyelaraskan terhadap hasil uji corefl ooding. Percobaan corefl ooding surfaktan-polimer dilakukan pada core batupasir dalam kondisi reservoar. Injeksi surfaktanpolimer dilakukan sampai tahap produksi tersier dengan konsentrasi surfaktan 1.067x10-3 fraksi mol, polimer 1.393x10-7 fraksi mol, anion klorida air injeksi 5.08x10-3 fraksi mol, dan slug injeksi surfaktan-polimer sebanyak 0.207 pore volume. Dari hasil uji core fl ooding menunjukkan perolehan minyak sebesar 57.09% original in place dari saturasi minyak tersisa setelah injeksi air, untuk formulasi surfaktan-polimer yang diselidiki. Analisis sensitivitas dilakukan dengan mengkombinasikan penambahan maupun pengurangan dari konsentrasi surfaktan, polimer, dan anion klorida air formasi, serta ukuran slug injeksi surfaktan-polimer untuk memperkirakan adanya penambahan perolehan dengan serangkaian ‘run’ model simulator. Berdasarkan hasil uji sensitivitas tersebut, maka perolehan minyak maksimum yang didapat adalah sebesar 87.28% original in place dari saturasi minyak tersisa untuk kasus penambahan konsentrasi surfaktan dan polimer masing-masing 10% dan 25% serta pengurangan konsentrasi anion klorida air injeksi sebanyak 10%, dan ukuran slug injeksi surfaktan-polimer 0.3 pore volume.
Peningkatan Kapasitas Adsorpsi Co2 Dari Adsorben Metil Dietanol Amina (Mdea) Berpenyangga Zeolit Alam
Authors: Adriany Roza
Published: March 2022

Telah dilakukan penelitian mengenai peningkatan kapasitas adsorpsi CO2 dari adsorben Metil Dietanol Amina (MDEA) yang diimpregnasikan pada zeolit alam dengan menggunakan larutan MDEA yang mengandung Piperazin 6% yang berfungsi sebagai aktifator reaksi. Metodologi pembuatan adsorben dimulai dari pembersihan pori zeolit alam sebagai penyangga menggunakan Asam Klorida 5N dan pemanasan pada suhu 200°C dan dilanjutkan dengan impregnasi MDEA ke dalam pori zeolit pada beberapa variasi konsentrasi MDEA yaitu 15%, 20% dan 25%. Terhadap sampel adsorben dilakukan pengujian penentuan luas permukaan, total volume pori dan diameter pori rata-rata serta uji kapasitas adsorpsi CO2 pada suhu ruang menggunakan alat uji adsorpsi CO2 sistem kontinyu. Hasil penelitian menunjukkan kapasitas adsorpsi CO2 optimum diperoleh pada konsentrasi MDEA 15% yaitu 33,6 mg CO2/g adsorben atau 0,764 mmol CO2/g adsorben. Impregnasi MDEA (mengandung Piperazin) ke dalam pori zeolit dapat meningkatkan perbandingan mol CO2 dan MDEA dari 1:1 menjadi 30:1, yang diperoleh pada konsentrasi MDEA 20 %.
Análisis de demanda de mercado para la implementación de marketing digital en empresas de venta de accesorios móviles en Mexicali (B.C.)
Authors: Gallardo Sánchez Germán , López Sergio , Vela Reyna Juan
Published: March 2022

El presente trabajo se analiza las características, preferencias y tamaño de la demanda del mercado del sector de comercio de accesorios para celular en la ciudad de Mexicali a través de la consulta de fuentes secundarias y la elaboración de una encuesta aplicada de forma electrónica a 265 personas, encontrando como principales características un mercado con predominancia de dos marcas, compuesto principalmente por jóvenes que buscan accesorios acordes con sus estilos de vida, por lo que las empresas del sector dentro de sus estrategias  deben incluir la explotación del mercadeo y transformación digital para apalancar su crecimiento.
Análisis preliminar sobre la especialidad dual en el IT Mario Molina de la carrera ingeniería en gestión empresarial
Authors: González Moreno Cynthia Dinorah , Navarro Alvarado Alberto , Becerra Bizarrón Leonardo Iván
Published: March 2022

El contexto empresarial moderno se encuentra imbuido en diversos aspectos basados en la sociedad del conocimiento y la denominada tecnología de la información y comunicación. Las instituciones educativas son, por excelencia, los principales organismos responsables de la generación de conocimientos que puedan generar aplicaciones útiles e innovadoras. Para muchos especialistas, esta responsabilidad se incrementa por la delegación del Estado de las actividades para el desarrollo de la ciencia y tecnología hacia las instituciones educativas de nivel superior. De esta manera, para cumplir con esta importante tarea, las universidades deben optar por modelos de formación que les permitan instruir a sus estudiantes en estricto apego con las necesidades de las empresas privadas, pues son estas quienes, principalmente, son capaces de hacer rentable el conocimiento producido, así como explotar las innovaciones relacionada con este. El modelo de Triple Hélice se ha convertido en el principal esquema para la generación efectiva de relaciones entre universidad y empresas, sin embargo, su aplicación presenta otros aspectos por considerar. La dualidad, basada en el Duale Hochschule alemana, se ha aplicado exitosamente en algunos países de Latinoamérica con las debidas adecuaciones, sin embargo, para el caso del Tecnológico Nacional de México, aún no se han obtenido resultados satisfactorios. En el presente documento se expone una iniciativa basada en la generación de especialidades como parte última vinculante en la articulación universidad-empresa, en la que se muestran un primer análisis, lo que ha permitido identificar factores que pueden conducir al éxito en la implementación de la dualidad, así como aspectos importantes de mejora.
EVALUATING COMMON HEMATOLOGICAL AND BIOCHEMICAL BIOMARKERS AS PREDICTORS FOR ISCHEMIC HEART DISEASES AMONG ADULT SUDANESE PATIENTS
Authors: Ahmed Babikir Ahmed Osama , Ahmed Elmansour Osama Khder , Mohammed Altoum Hamza Ahmed
Published: March 2022

Background: Ischemic heart diseases are the leading cause of death worldwide. It accounts for (20.07%) of total deaths with a death rate of 279.01 per 100.000 population. Being multifactorial in origin, the causes, diagnosis, prevention, control, and/or treatment of IHD remain active fields of biomedical research with considerable emphasis on the relativity of various risk factors and IHD.
Methods: This is a descriptive cross-sectional case-control prospective analytical study to evaluate the hematological and biochemical predictors in ischemic heart disease patients in Shendi locality, River Nile, State Sudan. The study excluded all patients with comorbidities that might affect the results of biomarkers.
Results: The mean values of Hb, PCV, RBCs, MCV, MCH, MCHC, RDW in case group were (12.3 g/dl), (37.7%), (4.2x1012/l), (87.9 fl), (28.9 pg), (32.9 g/dl) and (16.5) respectively and mean of TWBCs, Neutrophil, lymphocyte, monocyte, eosinophil, basophil, platelet count and MPV of (8.4 x 109 /l), (66.6%), (25%), (5.9%), (2.5%), (0%), (301.9 x 109 /l) and (8.4) respectively. The mean of hsCRP, D.dimer in case group were (5.896 mg/l), (1247.4 ng/ml), respectively. The case group had mean range of urea and creatinine (57.68 mg/dl) and (1.55 mg/dl) respectively, and mean of (Na+), (K+) and (Ca2+) of (136.1 mmol/l), (3.87 mmol/l) and (9.73 mg/dl) respectively.
Conclusion: When compared to healthy individuals in the control group, the case group had lower Hb, PCV, red cells indices, serum sodium (Na+), potassium (K+), and calcium (Ca2+) levels. And higher levels of TWBCs, Neutrophil, platelet, MPV, Serum hsC-reative protein, plasma D.dimer, b.urea, and serum creatinine
TECHNOLOGICAL THEORY OF MONEY AND THE SCIENCE OF MONEY IN THE CONDITIONS OF THE 9TH TECHNOLOGICAL ORDER
Authors: Glushchenko Valery Vladimirovich
Published: March 2022

The subject of the article is the technological theory of money as a methodological basis for the development of the global monetary system; the object of the article is the monetary system in the conditions of the 9th technological order; the purpose of the article is to reduce risks in the development of the global monetary system during the ninth technological order; to achieve this goal, the following tasks are solved: historical analysis of the development of forms and types of money; development of the technological theory of money; description of the monetary innovation multiplier and its significance in the monetary system; the scientific methods of this article are: historical and system analysis; theory of technological orders; theory of money; heuristic synthesis; comparative analysis; scientific novelty consists in the formation of the technological theory of money as the methodological basis of the post-industrial monetary system.
Pocket Queens
Authors: Rak Julie
Published: March 2022

Approaches from the humanities that understand poker as a culture (rather than as a gambling pathology or an isolated gaming activity) can help to highlight the voices and stories of women and connect them to feminist and gender research. Stories by individual women who may or may not be feminists can be most usefully described as “perifeminist,” a description of the strategies to cope with sexism that do not necessarily involve either confrontation or negation. Understanding women’s poker stories within this framework can bring depth and breadth to the representation of female poker players in popular journalism, which generally characterizes female players as objects or accessories for male players.  In this article, I analyze the gender politics of memoirs by Annie Duke and Victoria Coren, prominent female players whose texts are widely read, because these memoirs are a good place to look for perifeminist strategies and a sense of what being part of poker culture involves for women. Looking for and noticing the stories of female players and contextualizing them as part of the everyday experiences of gender politics can do much to make the lives of poker playing women more visible, and worthy of critical attention.
The Zone and the Shame: Narratives of Gambling Problems in Japan
Authors: Samuelsson Eva , Törrönen Jukka , Hwang Chiyoung , Takiguchi Naoko
Published: March 2022

Japan has one of the highest rates of severe gambling problems in the world. However, the gambling forms that cause the most harm—pachinko and pachislot—are not recognized as gambling in the key legislation. They are understood as entertainment. On the basis of two group interviews with those who have experienced problems with gambling, this study explores how they have dealt with the shame, guilt, and stigma of pachinko-related gambling problems. The narrative analysis shows that the participants carry self-stigma as a result of self-reproach and others’ condemnation of their behavior. Feelings of shame, guilt, and fear of being stigmatized have distinctly hindered the process of seeking help. The participants describe how their gambling, which they had attempted to limit, had led to isolation from normal life. The isolation and the failures to control the gambling increased their feelings of shame and destructive behavior. Considering the characteristics of the zone, the loss of self, and the shame, guilt and stigma of failing to control excessive pachinko gambling, it is unreasonable to place the main responsibility on the individual gambler. To reduce gambling harms in Japan and the stigma associated with pachinko and pachislot problems, these gambling forms need to be acknowledged as public health concerns and categorized as gambling in the legislation.
Book Review: Kasey Henricks and David G Embrick. (2020). State Looteries: Historical Continuity, Rearticulations of Racism and American Taxation. Routledge. 220 pp. ISBN 9780367596170
Authors: Nicoll Fiona
Published: March 2022

Book review of Kasey Henricks and David G Embrick. (2020). State Looteries: Historical Continuity, Rearticulations of Racism and American Taxation. Routledge. 220 pp. ISBN 9780367596170
Editorial: What are Critical Gambling Studies?
Authors: Nicoll Fiona , Bedford Kate , Rintoul Angela , Livingstone Charles , Casey Emma
Published: March 2022

Editorial for the special issue 'What are Critical Gambling Studies?'
Preparation and Comparative Evaluation of Physicochemical Properties of Microcrystalline Cellulose Derived from Saccharum officinarum L (Poaceae) with Avicel(R) PH102
Authors: ORAELUNO Jude , OBASI Josephat Chekwube , BAMIGBOLA Emmanuel Adelaja , VAIKOSEN Nicholas Edebi , JOSEPH Biobarakuma Aberenimi
Published: March 2022

This study was aimed at preparation and comparison of the physiochemical properties of a locally prepared microcrystalline cellulose obtained from dried stem pulp chips of sugarcane (Saccharum officinarum) coded SO-MCC and compared
with a commercial grade (Avicel PH 102). SO-MCC was prepared from a-cellulose derived by alkaline hydrolysis from dried sugarcane stem chips, bleached with sodium hypochlorite and treated with 2.5N hydrochloric acid. The MCC were
identified by BP (2009) method. The comparative physicochemical properties evaluated include: DSC, pH, mean particles diameter, true, bulk and tapped densities, angle of repose, Hausner’s quotient, compressibility index, porosity,
hydration, swelling and moisture sorption capacities. The results obtained from these tests are: pH (7.5), mean particle diameter (239), true, bulk and tapped densities (1.54, 0.464, 0.617), angle of repose (34.70), Hausner’s quotient
(1.32), C.I (25.00), porosity (70.00), hydration, swelling and moisture sorption capacities (4.00, 47.16, 21.30). The DSC showed a sharp peak at 730C which depicts high purity. Both MCCs showed the same organoleptic properties,
similar DSC and also had poor flowability. Overall, the results indicated that SO-MCC compared favourably with commercial grade Avicel PH 102 in terms of its physico-chemical properties(P<0.05) and complied with British Pharmacopoeia
specifications for microcrystalline cellulose.
ANALISIS VEGETASI PERINTIS LOKAL DI LAHAN BEKAS TAMBANG PASIR KECAMATAN CIMALAKA KABUPATEN SUMEDANG
Authors: Solihat Raizal Fahmi
Published: March 2022

Mining activities generally use large tracts of land, utilize non-renewable resources, produce a lot of waste, and make land degraded and unproductive. This happened on one of the former sand mining areas in Cimalaka sub-district, Sumedang Regency. Rehabilitation techniques by planting pioneering plants known as swapping are effective techniques. Pioneer plants are plants that start the formation of a habitat. This study aims to obtain information about the structure and composition of pioneering plants in the former sand mining quarry in the Cimalaka sub-district of Sumedang Regency. This research is descriptive, using a survey method with exploration, the research sample is a local pioneering plant that is included in the sampling plot found at the research location. The results showed that the structure at the level of pioneering vegetation in the former sand fields of Cimalaka subdistrict, namely shrubs Eleusine indica L. and Axonopus compressus, seedling plant Calliandra calothyrsus, Gliricidia sepium, Ageratum conyzoides L. Imperata cylindrica L. Saccharum spontaneum L. Vetiveria zizanioides Stapf. dan Coleus soutellarioides L.
COMFORT LEVEL OF GREEN OPEN SPACE IN BANDAR LAMPUNG BASED ON CLIMATE AND HUMIDITY
Authors: Taufiq Azhary , Wulandari Christine
Published: March 2022

Green open space is used as microclimate control in the cities besides its function as a recreational and sports facility for communities. The existence of green open space needed by the community to control and integrity and quality of the environment especially in the city. There was very little research and assessment on green open spaces in Bandar Lampung. The latest research conducted in 2015 about green open spaces showed that only 2,121 ha left in Bandar Lampung. The study aimed to determine the temperature and humidity in the three most visited green open spaces in Bandar Lampung contained Taman Dipangga, Taman Gajah, and Taman Kalpataru. The data were taken in 2019 using the Temperature Humidity Index formula. The results showed that the highest temperature was found in Taman Gajah (34,39 oC), and the lowest was in Taman Kalpataru (27,47 oC). The high temperature in Taman Gajah was due to the lack of shade vegetation in the park. Based on the function of green open space to fill the need of ecological functions, Taman Gajah needs to be improved by adding vegetation with a dense type of canopy density and a variety of cropping patterns to withstand temperature and humidity.
STRATEGI PENGELOLAAN EKOWISATA PADA MASA NEW NORMAL DI KEBUN RAYA CIBODAS
Authors: Syafithra Anugrah Putra , Salampessy Messalina L , Meiganati Kustin Bintani , Winarni Winarni
Published: March 2022

The COVID-19 pandemic has impacted various fields, especially the tourism sector in Indonesia. Cibodas Botanical Gardens (KRC) as an ecotourism destination as well as a conservation area that has an important role in the welfare of the surrounding community and the environment, requires appropriate management strategies in the new normal. The purpose of this study is to determine the development of ecotourism strategies during the new normal period in KRC. Data was collected using survey methods and literature studies, survey methods were carried out by direct observation, documentation and interviews. Interviews were conducted with managers, communities and visitors, with 30 respondents each. Determination of the sample is done by purposive sampling method. Literature studies are carried out by obtaining data through books and scientific journals as well as related agencies websites. Data analysis used SWOT (Strength, Weakness, Opportunities, Threats) analysis. The results showed that the total score for the Internal Factor Evaluation was 0.57722 and the total score for the External Factor Evaluation was 0.58789 with a quadrant I (one) position, namely Aggressive, with a strategy of mitigating COVID-19 alert in ecotourism services, coaching and community assistance, make policies and special services for COVID-19, create new innovation programs and infrastructure, build cooperation in the fields of service, tourism business, and environmental security as well as form environmentally conscious and conservation organizations.
Real-world efficacy and safety of Erenumab: a prospective study of 80 patients in a specialized headache center
Authors: Berdnikova A. V. , Kadymova N. V. , Latysheva N. V. , Naprienko M. V. , Filatova E. G.
Published: March 2022

Anti-CGRP monoclonal antibodies and particularly Erenumab become the first migraine-specific treatment and have demonstrated high efficacy and safety in the randomized clinical trials.

Aim. The aim of this study is the prospective evaluation of the efficacy and safety of Erenumab in patients with episodic migraine (EM) and chronic migraine (CM).

Material and мethods. We recruited patients aged 18–85 diagnosed with EM and CM according to the International Classification of Headache Disorders, 3rd edition. All patients were from November 2020 to December 2021. Demographic data, history of migraine and previous migraine treatment were collected for each patient. All patients filled out scales and questionnaires, headache frequency dynamics was followed up monthly with headache diaries.

Results. After three months of treatment reduction marked reduction of headache frequency was observed, and 53.5% of patients became ≥ 50% responders. After six months of treatment a further increase in the effect was observed: 57% of patients had at least a two-fold reduction in headache frequency, 74% of patients became ≥ 30% responders. Constipation was observed in 3.8% of patients.

Conclusion. Erenumab is safe and effective in the treatment of moderate- and high-frequency EM, CM and medication-overuse headache.
Difficulties in differential diagnosis of chronic tick-borne encephalitis and progressive supranuclear palsy
Authors: Nuzhnyi E. P. , Fedotova E. Yu. , Moskalenko A. N. , Illarioshkin S. N.
Published: March 2022

The article presents two clinical cases of 51 and 57-year-old patients living in regions endemic for tick-borne encephalitis in which the differential diagnosis between progressive supranuclear palsy (PSP) and the extremely rare parkinsonian variant of chronic tick-borne encephalitis (CTBE) resulted in a diagnostic challenge. In both cases there was a clinical presentation of progressive symmetric levodopa-resistant parkinsonism with vertical gaze palsy, cognitive impairment of the executive type, frontal lobe signs, focal dystonia and in one case — early onset of postural instability, which corresponds to the diagnosis of probable PSP. The parkinsonian variant of CTBE was supported by the lack of tick-borne encephalitis virus IgG-antibodies negativity in the blood for several years, intrathecal oligoclonal antibody synthesis in one patient, the absence of typical neuroimaging signs of PSP, and delayed disease onset after a tick bite. Difficulties in diagnosis and possible mechanisms of the pathogenesis of primary progressive CTBE, as well as the similarity of the clinical and pathomorphological presentation of PSP, von Economo encephalitis lethargica, and postencephalitic parkinsonism are discussed.
The Relationship between a Wife's Satisfaction in the Iddah Period with Marriage and Divorce
Authors: Nurohim Muhammad , Pasaribu Yusuf Hanafi , Asmaiyani Asmaiyani
Published: March 2022

Tujuan penelitian ini untuk mengkaji tentang kaitan antara nafkah iddah dengan perkawinan dan perceraian. Spesifikasi penelitian ini adalah penelitian hukum yang bersifat dikriptif analitis. Jenis data yang digunakan dalam penelitian ini adalah data sekunder yang bersumber dari perpustakaan seperti bahan hukum primer yaitu dokumen dan setiap peraturan perundang-undangan yang mengikat dan ditetapkan oleh pihak yang berwenang yang berkaitan dengan kewajiban nafkah pada masa iddah.  Ditambah lagi dari bahan hukum sekunder dan dokumen hukum tersier. Alat pengumpulan data yang digunakan pada penelitian ini adalah studi dokumen dengan cara menelusuri bahan-bahan hukum yang ada di perpustakaan. Kemudian dianalisis secara kualitatif. Hasil penelitian ini menunjukkan bahwa nafkah iddah kepada mantan istri hanya dapat dimintakan setelah adanya perceraian dari suatu perkawinan yang diakui keabsahannya.
Criminal Sanctions for Corruption Crimes Based on Perspective Study of Renewal Law and the Relationship with Islamic Criminal Law
Authors: Wahyuni Fitri , Ishaq Ishaq , Irawan Aris
Published: March 2022

Kejahatan korupsi merupakan sebuah kejahatan yang ektra ordinary crime yang merusak sendi-sendi ekonomi di suatu negara. Oleh karenanya kejahatan tersebut harus diberi sanksi yang menimbulkan efek jera sehingga perbuatan tersebut dapat diminimalisir. Namun dalam kenyataannya sanksi terhadap kejahatan korupsi yang telah disusun saat ini di Indonesia perlu di rumuskan kembali melalui kajian pembaharuan hukum pidana di Indonesia. Penelitian ini mengkaji tentang Pemberian Sanksi Pidana Bagi Pelaku Kejahatan Korupsi dari Perspektif Hukum Pidana Islam Kaitannya Dengan Pembaharuan Hukum Pidana. Metode penelitian yang digunakan penelitian hukum normatif, dengan sumber data berupa data sekunder dan bahan hukum primer dan sekunder. Analisisnya berupa kualitatif deskriptif. Pemberian Sanksi pidana bagi pelaku kejahatan korupsi yang terdapat di Indonesia pada umumnya hanyalah berupa pidana penjara dan denda termasuk ancaman pidana mati yang ternyata belum memberikan efek jera. Dengan demikian perlu adanya pembaharuan hukum pidana khusus hukum pidana korupsi. Usaha-usaha pembaharuan hukum tersebut juga harus bersumber dari hukum yang hidup yaitu hukum adat dan hukum islam sebagai hukum yang berlaku di dalam masyarakat Indonesia sebelum masuknya hukum Belanda. Dengan demikian, pembaharuan sanksi pidana bagi pelaku korupsi saat ini menjadi hal yang wajib dirumuskan kembali mengingat sanksi tersebut saat ini belum dianggap efektif dalam mencegah dan memberantas pelaku korupsi kendatipun sudah ada sanksi pidana mati. Salah satu upaya tersebut dapat dilakukan melalui pembaharuan hukum dan menuangkan nilai keadilan dalam hukum pidana Islam kedalam penyusunan sanksi bagi pelaku korupsi yang mengacu pada prinsip keadilan.
Disentangling the perceived performance effects of publicness and bureaucratic structure: A survey-experiment
Authors: Van den Bekerom Petra , Van der Voet Joris
Published: March 2022

Recent studies have examined whether, all else equal, there is a general tendency among citizens to perceive public service providers as lower performing than their private counterparts. As public organizations are commonly stereotyped as “bureaucracies”, it is unknown whether the negative image of public organizations is caused by their publicness or by their structural bureaucratic characteristics. This article makes a novel contribution to this literature by disentangling these two variables, and examines to what extent the proclaimed negative effect of publicness on citizens’ performance perceptions is dependent on citizens’ perceptions regarding the bureaucratic structure of public organizations. This is investigated through a survey-experiment conducted among 422 Dutch undergraduate students in public administration. The main findings of the study are that we find no evidence for direct negative effects of publicness, and that the bureaucratic structure of the organization positively affects the degree in which citizens perceive public organizations to be equitable and responsive. These findings suggest that the relationship between publicness and perceived performance is more situational than is assumed in prior studies.
Undergraduate student role models: Reinforcing the higher education message?
Authors: Kerrigan Michael , Harvey Grace
Published: March 2022

This study draws upon previous research to establish if ‘low cost, high volume’ university outreach interventions change subsequent application behavour. The results of two distinct but related randomised controlled trials with two-armed designs (RCT 1, n=2,199; RCT 2, n=1,166) compared application outcomes between recipients and non-recipients of messages from existing undergraduates. The research sought to determine if student role model messaging reinforced prior exposure to the University outreach programme and thereby influenced recipient behavour, in terms of applications and acceptances to that specific institution.

The first trial found moderate statistical evidence that sending an email, written by and addressed from an existing undergraduate, to prospective applicants resulted in the opposite of the intended effect; reducing the rate of applications to the University. The second trial found no statistical evidence of any difference in application or acceptance rates amongst the treatment cohort, who received a personal letter in the post from two current undergraduate students, in comparison to the control group who received no correspondence. This reinforces the notion that there is no ‘one size fits all’ programme of widening participation interventions; successful ‘messaging’ is not necessarily transferrable, and can even backfire, given different characteristics of activity providers and recipient cohorts.