bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigation of the process of pneumatic vibration separation of grain by density during one-dimensional movement of grain flow
Authors: Stepanenko S. P. , Kotov B. І. , Popadyuk I. S.
Published: May 2022

Annotation
Purpose. Formation of a mathematical description of the process of moving grains with different density in vibro-pneumatic liquefied grain medium under the action of pulsating air flow to determine the parameters of movement and the possibility of their separation into fractions.
Methods. Theoretical determination of the dependences of the motion of grains with different densities in a vibro-pneumatic grain medium with pulsating air flow determines the mathematical method of research based on the addition and numerical solution of the equations of grain motion in a pneumatic vibrating separator. The mathematical model is formed as a result of drawing up the scheme of force interaction on grain in the vibro-pneumatic liquefied grain environment and the differential equations of movement of grains which are presented by a material point and indicators characterizing physical and mechanical properties of grain environment are received.
Results. The motion of the center of mass of grains is considered as the motion of a certain particle, the coordinates of which coincide with the coordinates of the moving coordinate system (x, y), and the mass of a single grain m differs from the grains of the medium in density.
The change of air flow velocity and the influence of pulsating air flow on the flow of grain material moving on a vibrating perforated surface are determined. The discrete-periodic change of the flow velocity, which is fed through the perforated support surface into the layer of grain material, is analytically described.
The parameters of the grain motion process in an oscillating fluidized medium are determined, which are determined by the solution of a complex system of differential equations using computational methods using a PC.
Conclusions. As a result of theoretical research, the possibility of increasing the efficiency of separation of grain materials by specific gravity of grains, by intensifying the process of separation of grain material provided the use of pulsating air flows to separate mixtures on vibrating surfaces and compared with existing separators using horizontal and inclined decks grain separation efficiency material increases by 35–42%.
Keywords: pulsating air flow, grain, density, trajectory, fluidized medium, separation process, harmonic law of motion.
Note on the Number of Balanced Independent Sets in the Hamming Cube
Authors: Park Jinyoung
Published: May 2022

Let $Q_d$ be the $d$-dimensional Hamming cube and $N=|V(Q_d)|=2^d$. An independent set $I$ in $Q_d$ is called balanced if $I$ contains the same number of even and odd vertices. We show that the logarithm of the number of balanced independent sets in $Q_d$ is

\[(1-\Theta(1/\sqrt d))N/2.\]

The key ingredient of the proof is an improved version of "Sapozhenko's graph container lemma".
On Maximal Sum-Free Sets in Abelian Groups
Authors: Hassler Nathanaël , Treglown Andrew
Published: May 2022

Balogh, Liu, Sharifzadeh and Treglown [Journal of the European Mathematical Society, 2018] recently gave a sharp count on the number of maximal sum-free subsets of $\{1, \dots, n\}$, thereby answering a question of Cameron and Erdős. In contrast, not as much is know about the analogous problem for finite abelian groups. In this paper we give the first sharp results in this direction, determining asymptotically the number of maximal sum-free sets in both the binary and ternary spaces $\mathbb Z^k_2$ and $\mathbb Z^k_3$. We also make progress on a conjecture of Balogh, Liu, Sharifzadeh and Treglown concerning a general lower bound on the number of maximal sum-free sets in abelian groups of a fixed order. Indeed, we verify the conjecture for all finite abelian groups with a cyclic component of size at least 3084. Other related results and open problems are also presented.
Minimum Maximal Matchings in Cubic Graphs
Authors: Cames van Batenburg Wouter
Published: May 2022

We prove that every connected cubic graph with $n$ vertices has a maximal matching of size at most $\frac{5}{12} n+ \frac{1}{2}$. This confirms the cubic case of a conjecture of Baste, Fürst, Henning, Mohr and Rautenbach (2019) on regular graphs. More generally, we prove that every graph with $n$ vertices and $m$ edges and maximum degree at most $3$ has a maximal matching of size at most $\frac{4n-m}{6}+ \frac{1}{2}$. These bounds are attained by the graph $K_{3,3}$, but asymptotically there may still be some room for improvement. Moreover, the claimed maximal matchings can be found efficiently. As a corollary, we have a $\left(\frac{25}{18} + O \left( \frac{1}{n}\right)\right) $-approximation algorithm for minimum maximal matching in connected cubic graphs.
Pembelajaran Kooperatif Tipe Jigsaw Dan Hasil Belajar Siswa: Analisis Kesulitan
Authors: Ningsih Eka Gunarti
Published: May 2022

Tujuan penelitian: Penelitian ini bertujuan untuk mengetahui kesulitan yang temui pada penerapan pembelajaran kooperatif tipe jigsaw dan melihat hasil belajar siswa yang menggunakan model pembelajaran kooperatif tipe Jigsaw dalam pelaksanaan proses pembelajaran di SMAN 3 Kota Jambi.

Metodologi: Metode penelitian ini adalah Mix Methods. Instrumen yang digunakan pada penelitian ini adalah lembar observasi, angket, dan tes hasil belajar.

Temuan utama: Hasil dari penelitian ini didapatkan bahwa dalam penerapan pembelajaran kooperatif tipe jigsaw di SMAN 3 Kota Jambi menemukan kesulitan dalam hal kesiapan siswa, interaksi antar siswa, manajemen kelas dan fasilitas. Meskipun demikian, hasil belajar yang diperoleh selama 3 kali Kegiatan Belajar Mengajar dinilai sudah baik jika ditinjau dari hasil analisis level jawaban siswa dan nilai rata-rata siswa. Hal ini menunjukkan bahwa model pembelajaran kooperatif tipe Jigsaw terbukti mampu membantu siswa memahami pelajaran dengan baik..

Keterbaruan penelitian: Penelitian ini memperkuat tentang kesulitan yang ditemui selama proses pembelajaran kooperatif tipe Jigsaw
Pengembangan Bahan Ajar Interaktif Berbasis Pendekatan Saintifik Menggunakan Ispring Suite Pada Materi Eksponen Dan Logaritma
Authors: Prihatin Iling
Published: May 2022

Tujuan penelitian: Tujuan penelitian ini adalah mengembangkan produk bahan ajar interaktif menggunakan Ispring Suite berbasis pendekatan saintifik untuk materi eksponen dan logaritma di kelas X SMA serta untuk mengetahui kualitas dari bahan ajar tersebut.

Metodologi:. Penelitian ini merupakan penelitian pengembangan menggunakan model pengembangan ADDIE (Analysis, Design, Development, Implementation, Eva-luation). Instrumen yang digunakan dalam penelitian ini adalah lembar penilaian validasi materi, desain pembelajaran, angket tanggapan guru dan siswa, tes hasil belajar siswa, lembar observasi aktivitas belajar siswa, dan angket respon siswa.

Temuan utama: Dari hasil analisis, bahan ajar interaktif ini termasuk dalam kriteria valid dengan kategori “baik” dan termasuk dalam kriteria praktis dengan kategori “sangat baik”. Selain itu, keefektifan bahan ajar terlihat dari hasil observasi aktivitas pembelajaran siswa mencapai 90,05% menunjukkan kategori “sangat baik”, hasil analisis post-test yaitu 87,5,% nilai siswa mencapai kriteria ketuntasan minimum, dan hasil analisis angket persepsi siswa mencapai 88,13% menunjukkan kategori “sangat positif”. Ini artinya bahan ajar interaktif yang dibuat sudah menunjukkan kualitas bahan ajar interaktif yang baik. Sehingga bahan ajar interaktif ini bisa digunakan oleh guru dan siswa khususnya pada pembelajaran eksponen dan logaritma di Kelas X SMA.

Keterbaruan penelitian: Penelitian ini memiliki keterbaruan pada variabel yang diteliti yakni keefektifan modul matematika berbasis accelerated learning untuk materi himpunan kelas VII SMP yang belum pernah dilakukan oleh peneliti terdahulu.
Penguatan Kompetensi Kepribadian Guru Melalui Nama Allah Al-Shamad
Authors: Taufik Buldan
Published: May 2022

Abstrak

Permasalahan kepribadian patut diperhatikan oleh siapapun, karena kemerosotan di bidang tersebut bisa menimpa siapa saja, dan berakibat kekacauan dan berkurangnya keberkahan. Apabila yang mengalami masalah pada kepribadian itu seorang guru atau pendidik, akan menjadi persoalan yang semakin besar lagi, karena efeknya tak hanya untuk pribadinya saja tapi juga anak didik yang para orangtuanya banyak menggantungkan harapan kepada mereka. Pembahasan pada penelitian ini berkisar pada konsep kompetensi kepribadian guru yang merupakan amanah undang-undang, faktor-faktor yang dapat mempengaruhi suatu kepribadian, dan indikator-indikator seorang guru dikatakan berkompeten secara kepribadian, juga konsep asmaul husna, sebagai nilai-nilai ilahi yang kita diperintah untuk ta’abbud dengannya dan diyakini mengandung nilai-nilai kepribadian yang mulia, hingga diharapkan memperkuat kompetensi dimaksud. Penelitian ini menggunakan metode kualitatif dengan model studi kepustakaan (library research), di mana peneliti sebagai instrumen utamanya. Penulis memilih salah satu asmaul husna sebagai objek kajian, yaitu nama Allah “al-Shamad”, karena maknanya yang luas dan dianggap refresentatif, dan didapati dari satu nama yang agung ini nilai-nilai karakter yang memadai untuk memperkuat kompetensi kepribadian guru sebagaimana yang diharapkan.

Abstract

Personality problems deserve attention by anyone, because deterioration in this field can happen to anyone, and result in chaos and reduced blessings. If the person experiencing personality problems is a teacher or educator, it will become an even bigger problem, because the effect is not only for personalities but also for students whose parents depend a lot on them. The discussion in this study revolves around the concept of teacher personality competence which is the mandate of law, factors that can influence a personality, and indicators of a teacher who is said to be personally competent, also the concept of Asmaul Husna, as divine values that we are governed by. for ta'abbud with it and it is believed to contain noble personality values, so that it is expected to strengthen the said competence. This study uses a qualitative method with a library research model, in which the researcher is the main instrument. The author chooses one of the Asmaul Husna as the object of study, namely the name Allah "al-Shamad", because of its broad meaning and is considered to be representative, and it is found that from this great name the character values are sufficient to strengthen the teacher's personality competence as expected.
Strategi Pembelajaran Bahasa Arab Di Masa Pandemi Covid-19 di MA Ell-Firdaus Kedungreja, Cilacap Tahun Ajaran 2020/2021
Authors: Fahmi Ma’ruf Akhmad , Makruf Imam
Published: May 2022

Abstrak

Penelitian ini bertujuan untuk mendeskripsikan strategi pembelajaran bahasa Arab saat wabah (Covid-19) dan menganalisis kendala yang dihadapi guru bahasa Arab dalam melaksanakan pembelajaran selama wabah (Covid-19) di MA Ell-Firdaus Kedungreja tahun ajaran 2020/2021. Penelitian ini menggunakan metode penelitian deskriptif kualitatif. Strategi pembelajaran bahasa Arab di masa pandemi Covid-19 di SMA Ell-Firdaus Kedungreja adalah menggunakan metode project based learning, strategi pembelajaran menggunakan sistem daring, stretegi pembelajaran menggunakan sitem luring, dengan metode door to door. Hambatan penerapan strategi pembelajaran bahasa Arab pada saat pandemi Covid-19 di SMA Ell-Firdaus Kedungreja merupakan kendala yang berasal dari faktor internal dan eksternal. faktor internal yaitu minat dan perhatian, motivasi siswa dan kesiapannya untuk menerim pembelajaran dengan konsep baru. Sedangkan faktor eksternal dari pihak keluarga, pihak sekolah dan aspek masyarakat. Penyelesaian permasalahan penerapan strategi pembelajaran bahasa Arab di masa pandemi Covid-19 SMA Ell-Firdaus Kedungreja, menitikberatkan pada permasalahan yang muncul dari dimensi siswa yaitu dengan cara memberikan hadiah atau reward untuk mengatasi kekurangan minat. Untuk mengatasi masalah terkait banyaknya biaya yang harus dikeluarkan oleh siswa.

Abstract

This study aims to describe Arabic learning strategies during the outbreak (Covid-19) and analyze the obstacles faced by Arabic language teachers in carrying out learning during the outbreak (Covid-19) at Ell-Firdaus High School Kedungreja 2020/2021 school year. This study uses descriptive qualitative research methods. The Arabic language learning strategy during the Covid-19 pandemic at Ell-Firdaus High School Kedungreja is an education strategy using project-based learning, daring, and offline strategies door to door. Obstacles to applying Arabic language learning strategies at the time of the Covid-19 pandemic at Ell-Firdaus High School Kedungreja is an obstacle that comes from internal and external factors and internal factors which are interest and attention, students' motivation and their readiness to accept learning with the new concepts. While the external factors of the family side, the school side and the aspects of society. The problem of applying Arabic language learning strategies in the time of the Covid-19 pandemic Ell-Firdaus High School Kedungreja, focuses on the problems that arise from the student dimension, that is, by how to give gifts or rewards to overcome the lack of interest. To overcome the problem related to the number of costs that must be paid by students.
Metode Pembelajaran Bahasa Inggris Tingkat SMP di Nuraida Islamic Boarding School Bogor
Authors: Zulkarnindra Egar
Published: May 2022

Abstrak

Bahasa inggris adalah ilmu alat yang perlu dimiliki oleh seorang muslim pada zaman ini, fungsi bahasa inggris adalah sebagai alat pengungkap realitas dan ilmu pengetahuan di abad 21 juga sebagai alat untuk mendakwahkan agama Islam secara global. Tujuan penelitian ini untuk mengetahui metode pembelajaran bahasa Inggris tingkat SMP di Nuraida Islamic Boarding School Bogor. Metode penelitian yang digunakan oleh penulis adalah metode penelitian deskriptif kualitatif. Peneliti menggunakan teknik pengumpulan data dengan teknik wawancara. Peneliti mendapatkan bahwa dalam proses pembelajaran bahasa inggris Nuraida Islamic Boarding School Tingkat SMP menggunakan metode jigsaw, metode penugasan descriptive text, dan metode demonstration.

Abstract

English is a science that needs to be owned by a Muslim at this time, the function of English is as a tool for revealing reality and science in the 21st century as well as a tool for preaching Islam globally. The purpose of this study was to find out the method of learning English at the junior high school level at Nuraida Islamic Boarding School Bogor. The research method used by the author is a qualitative descriptive research method. The author used an interview technique to collect data which needed in the field. The author found that in the process of learning English,  Nuraida Islamic Boarding School at the Junior High School level used the jigsaw method, the descriptive text assignment method, and the demonstration method.
Manajemen Asrama dalam Meningkatkan Kedisipinan Santri Tingkat MTs di Pesantren Al-Ma’tuq
Authors: Upang  , Alim Akhmad
Published: May 2022

Abstrak

Penelitian ini bertujuan untuk mengetahui bagaimana manajemen asrama dalam meningkatkan kedisiplinan santri tingkat MTs di Pesantren Al-Ma’tuq Kabupaten Sukabumi. Metode penelitian yang digunakan merupakan metode deskriptif dengan menggunakan pendekatan kualitatif. Teknik yang digunakan dalam pengumpulan data yaitu observasi, wawancara, dan studi dokumentasi. Analisis data dilakukan dengan coding data, kategorisasi data dan interpretasi data. Hasil penelitian ini menunjukan bahwa manajemen asrama dengan tujuan peningkatan kedisiplinan santri yang dilaksanakan di pesantren Al-Ma’tuq dapat terlaksana dengan baik, hal ini tidak terlepas dari unsur-unsur manajemen yaitu perencanaan, pengorganisasian, pelaksanaan dan pengawasan. Adapun temuan lain dalam penelitian ini menunjukkan bahwa di pesantren Al-Ma’tuq ini terdapat pembentukan organisasi intern kamar yang melibatkan santri untuk mengelola asrama, tentunya tetap dalam pengawasan Musyrif. Hal ini bertujuan untuk membantu para Musyrif dalam penyelenggaraan dan pengelolaan kegiatan asrama agar berjalan dengan lancar dan dapat memberikan dampak bagi santri dalam meningkatkan kedisiplinannya.

Abstract

This study aims to find out how the management of the dormitory in improving the discipline of students at the MTs level at the Al-Ma'tuq Islamic Boarding School, Sukabumi Regency. The research method used is descriptive method using a qualitative approach. The techniques used in data collection are observation, interviews, and documentation studies. Data analysis was carried out by data coding, data categorization and data interpretation. The results of this study indicate that the management of the dormitory with the aim of increasing student discipline carried out at the Al-Ma'tuq Islamic boarding school can be carried out well, this is inseparable from the elements of management, namely planning, organizing, implementing and supervising. The other findings in this study indicate that at the Al-Ma'tuq Islamic boarding school there is the formation of an internal room organization that involves students to manage the dormitory, of course it is still under the supervision of Musyrif. This aims to assist the Musyrif in organizing and managing dormitory activities so that they run smoothly and can have an impact on students in improving their discipline.
Manajemen Rekrutmen Santri Tahfidz Al Qu’ran Tingkat Madrasah Aliyah
Authors: Wais Al Qorni Agung
Published: May 2022

Abstrak

Penelitian ini bertujuan untuk mengetahui bagaimana manajemen rekrutmen santri Ma'had Tahfidz Bina Madani Bogor dan Ma'had Tahfidz Uhud Cianjur. Metode penelitian yang digunakan adalah metode deskriptif dengan menggunakan pendekatan kualitatif. Teknik yang digunakan dalam pengumpulan data yaitu observasi, wawancara, dan studi dokumentasi. Analisis data dilakukan dengan coding data, kategorisasi data dan interpretasi data. Hasil penelitian ini menunjukan bahwa, kegiatan manajemen rekrutmen santri mencakup proses perencanaan rekrutmen dan pelaksanaan rekrutmen santri. Proses pelaksanaan rekrutmen diantaranya adalah: 1) Pembentukan Panitia Penerimaan Santri Baru. 2) Rapat Panitia Penerimaan santri Tahfidz. 3) Pembuatan dan pemasangan pengumuman. 4) Pendaftaran. 5) Seleksi. 6) Penentuan Santri yang diterima. 7) Pengumuman santri yang diterima. 8) Daftar Ulang. Proses terakhir yakni; 9) Orientasi Santri.

Abstract

This study aims to see how the management of the student recruitment of Ma'had Tahfidz Bina Madani Bogor and Ma'had Tahfidz Uhud Cianjur. The research method used is a descriptive method with a qualitative approach. The techniques used in studying the observation data, interviews, and study documentation. Data analysis was performed by data coding, data categorization and data interpretation. The results showed that the management activities of the santri recruitment included the recruitment planning process and the implementation of the santri recruitment. The recruitment process includes: 1) Establishment of the New Santri Admissions Committee. 2) The meeting of the Tahfidz santri admissions committee. 3) Making and posting announcements. 4) Registration. 5) Selection. 6) Determination of the accepted Santri. 7) Announcement of accepted students. 8) Re-register. The last process, namely; 9) Orientation of Santri.
Fa’aliyyatus Tikhdami Wasilati Anchor Podcast fi Watsapp ‘Ala Tarqiyyati Maharah Al Istima’ Bi Al Madrosah Al Mihniyyah Al Islamiyyah Smart Informatika Gremet Manahan Banjarsari Surakarta
Authors: Alfi Shofa A’yuna Muhammad , Maslamah  , Makruf Imam , Abas Zainul , Shodiq Fajar
Published: May 2022

ملخص البحث

أهداف هذه الرسالة لتجربية استخدام وسيلة أينكور بودكاس (Anchor Podcast) في واتساب (WhatsApp) لمحاسبة درجة الطلاب في الفصل الضابط و التجريبي  و لمعرفة  فعاليته على ترقية مهارة الإستماع لدى الطلاب في الصف الحادي عشرة بالمدرسة المهنية الإسلامية (SMART INFORMATIKA). هذه الرسالة هي رسالة كمية ونوعها شبه تجريبية, مجتمع البحث هو كل التلاميذ في الصف الحادي عشرة مع عينة 40 تلاميذا. و أما جمع البينات بطريقة الإختبار والتوثيق والمقابلة. وأما إختبار أداوت البيانات بإختبار الصدق والثبات.و تحليل البينات بإختبار سوى البيانات و تجانس البيانات . ثم يستخدم الإختبار الفرصية إختبارا Paired Samle T Test بطريقة الإحصائية. و أما نتيجة الرسالة تدل أن في مجموعة التجريبية قبل وبعد التعليم ٬ ثم الحصول على القيمة المعنوية (2-Tailed) 0٬00. وهي أصغر من  0٬05 ففرضيته  Ho  مفروضة و Ha مقبولة٬ بمعنى هناك تأثير أو فعالي إيجابي كبير. ومن البيانات والدراجات السابقة في فصل التجريبي و الضابط تدل على أنّ استخدام تطبيق أينكور بودكاس (Anchor Poadcast) في وسيلة واتساب (WhatsApp) في تعليم بالشبكة الإنترنيت في اللغة العربية على ترقية مهارة الإستماع أكثر فعاليته من ذلك لدى الطلاب في الصف الحادي عشر بالمدرسة المهنية الإسلامية (SMART INFORMATIKA) قريمت ماناهان بانجارساري سوراكارتا. للسنة الدراسية 2021 – 2020 

Abstract

The purposes of this study that the first is to try out online learning using whatsapp with the help of the anchor podcast application, to calculate the value of students in the experimental and control classes, to find out the that effectiveness. This research is a quantitative research and the type is a quasi experimental study, The population in this study were all students of class XI with a sample of 40 students. And  collection techniques using tests, documentation and interviews. And as for the instrument test using validity and reliability tests. And the classical assumption test uses normality and homogeneity tests. And for the final test using the paired sample T test using SPSS. The results showed that in the experimental class before and after learning, the score (2-Tailed) was 0.00. And the value is smaller than 0.05 then the hypothesis Ho is rejected and Ha is accepted. From the data and values ​​above, it shows that the use of the anchor podcast application in WhatsApp media in online learning of Arabic languange subjects towards increasing listening competence is more effective than not, in class XI at SMKIT Smart Informatika Gremet Manahan Banjarsari Surakarta for academic year 2020/2021
The Role of Calcium in the Skin Barrier
Authors: Nopriyati  , Ahmad Ligar Suherman  , Yulia Farida Yahya  , Mutia Devi
Published: May 2022

Calcium is a macro mineral that is an important part of the body. Bones and teeth contain more than 99% of the human body calcium. Calcium also found in other tissues such as skin. The concentration of calcium in the body tends to decrease with age because released from the body through sweat, skin cells, and faeces. Calcium intake varies worldwide with an average of 175-1233 mg/day. Many countries in Asia have an average calcium intake of less than 500 mg/day. The skin barrier function is in the epidermis, the formation of the epidermal barrier and the maintenance of homeostasis are important to protect the individual from the external environment and organisms. Epidermal calcium gradient, endoplasmic reticulum (ER) calcium homeostasis, and calcium influx through calcium channels play important roles in keratinocyte differentiation, barrier formation, and barrier homeostasis. Understanding the mechanism of regulation and function of calcium related to skin barrier homeostasis is aimed to improve understanding of calcium in the skin barrier
UJI KELURUSAN MESIN RESONANCE 63 KN DENGAN COUPON TEST PESAWAT N219 MENGGUNAKAN STRAIN GAUGE
Authors: . Koswara , Arif Syaiful
Published: May 2022

ABSTRACT

 

ABSTRACT This study aims to determine the capacity of the resonance machine capacity 63 kn which has the influence of strain in analyzing the static loading stress on the coupon test. The study used a coupon test specimen with a predetermined dimension, using eight strain gauges in a vertical direction, where the response of the strain gauge system was fast enough to sense dynamic strain with a frequency greater than 100 kHz. The strain gauge used was a strain gauge for gauge bridges where the application is easy. The results obtained show that there is no strain and stress on specimens that point to numbers below -100 to 100, but this number is considered good because it does not exceed the number specified in the tolerance category the third step measurement results are used for knowing the ability to reset, relative error and machine linearity and the expected deviation value is not more than 1%.

Keywords: resonance machine, coupon test, strain gauge, specimen
Bioritmų poveikis sveikatai ir ligų vystymuisi
Authors: Savickienė Nijolė
Published: May 2022

Sveikata ir ilgaamžiškumas glūdi subalansuotoje organizmo medžiagų apykaitoje [1]. Jei atliktume tam tikrų žmogaus organizmo parametrų matavimą 4–6 kartus per parą, tai atrastume įdomių faktų. Priklausomai nuo paros laiko, cikliškai keičiasi žmogaus fiziologinė būsena, intelektinės galimybės, nuotaika [2].
Su sveikata susijusios elgsenos keitimas
Authors: Nomeikaitė Evelina
Published: May 2022

Nuo lėtinių ligų, tokių kaip širdies ir kraujagyslių ligos, onkologinės ligos, kvėpavimo sistemos ligos arba cukrinis diabetas, kasmet miršta apie 41 milijoną žmonių, o tai sudaro apie 71 proc. visų mirčių visame pasaulyje [1]. Pasaulio sveikatos organizacija (PSO) teigia, jog prasta gyvensena padidina riziką mirti nuo lėtinių ligų, todėl verta susimąstyti apie sveikatos elgsenos keitimą [1]. Nors „pakeisti elgseną“ iš pažiūros atrodo nesudėtinga, tačiau nėra taip paprasta – retas žmogus ryžtasi keisti gyvenseną arba jam sunkiai sekasi palaikyti elgsenos pokyčius, būtent todėl sveikatos specialistai remiasi moksliniais tyrimais pagrįstomis teorijomis ir modeliais.
Tanggung Jawab Awak Sarana Perkeretaapian
Authors: Oktaria Dhina Setyo
Published: May 2022

Awak sarana perkeretaapian terdiri dari masinis dan asisten masinis yang mengoperasikan sarana kereta api di jalur kereta api. Di Indonesia telah terjadi beberapa kali kecelakaan perkeretaapian. Awak sarana perkeretaapian seringkali disalahkan sebagai penyebab terjadinya kecelakaan tersebut. Tujuan dari penelitian ini untuk menganalisis pertanggungjawaban pidana dari awak sarana perkeretaapian sesuai dengan KUHP, UU Nomor 23 Tahun 2007 dan UU Nomor 11 Tahun 2020 Pasal 56. Sanksi Pidana sesuai pasal 359 dan 360 KUHP dapat dikenakan jika awak sarana perkeretaapian terbukti melakukan kesalahan berupa kealpaan yang menyebabkan orang lain meninggal, luka berat ataupun luka ringan. Namun tetap memperhitungkan adanya praduga tak bersalah sesuai amanat HAM serta Pasal 203 UU Nomor 23 tahun 2007 sebagaimana telah diubah dalam pasal 56 UU nomor 11 tahun 2020  dalam pasal 203. Hakim dalam memberikan putusan harus mempertimbangkan hasil penyelidikan PPNS perkeretaapian, Penyelidikan dan Penyidikan Kepolisian, penyidikan terhadap penyelenggara prasarana perkeretaapian yang digunakan untuk perjalanan kereta api, dan penyelenggara sarana perkeretaapian yang merupakan instansi tempat awak sarana perkeretaapian bekerja. Penyelenggara sarana perkeretaapian wajib untuk memperkerjakan seorang awak sarana perkeretaapian yang kompeten dibuktikan dengan mempunyai sertifikasi kecakapan sebagai awak sarana perkeretaapian.

AbstractThe crew of the railway facility consists of a machinist and an assistant engineer who operates rail facilities on the railway line. In Indonesia, there have been several railway accidents. The crew of the railway facilities are often blamed for the accident. The purpose of this study is to analyze the criminal liability of the crew of the railway facility if the crew of the railway facility is proven to have made a mistake in the form of negligence which resulted in the death of another person, serious injury or minor injury. However, taking into account the presumption of innocence following the mandate of human rights and waiting for the judge to give a decision by considering the results of the investigation of the railway PPNS, Police Investigations and Investigations, investigations into the organizers of the railway infrastructure used for train travel, and the operator of railway facilities which is the agency where the crew of the facilities is located. railway works. The operator of railway facilities is obliged to employ a competent crew of railway facilities as evidenced by having certification of skills as a crew of railway facilities.
Tubular glassy carbon microneedles with fullerene-like tips for biomedical applications
Authors: Malik Sharali , Kostakis George E
Published: May 2022

Glassy carbon, in general, is made by the pyrolysis of polymeric materials and has been the subject of research for at least fifty years. However, as understanding its microstructure is far from straightforward, it continues to be an area of active research. Glassy carbon adopts different allotropes depending on the hybridizations of the C–C bond, that is, sp, sp2, or sp3. Furthermore, a variety of short-range ordering effects can interact with each other and this, along with the effects of microporosity, grain boundaries, and defects, render this a fascinating material. Following the nanoarchitectonics concept of bottom-up creation of functional materials, we use methane rather than a polymer to form glassy carbon. Here we show that tubular glassy carbon microneedles with fullerene-like tips form when methane undergoes pyrolysis on a curved alumina surface. X-ray diffraction of these glassy carbon tubules shows long-range order with a d-spacing of 4.89 Å, which is indicative of glassy carbon. Raman spectroscopy shows the material to be graphitic in nature, and SEM shows the fullerene-like structure of the material. This work provides new insights into the structure of glassy carbons relevant to the application of glassy carbons as a biomaterial, for example, as a new form of carbon-based microneedles. Since metallic needles can introduce toxic/allergenic species into susceptible subjects, this alternative carbon-based microneedle form has great potential as a replacement biomedical material for metallic needles in the field of neural engineering and as acupuncture needles.
HYDRODYNAMIC STUDIES OF WELL 32 OF THE SOUTHERN SECTION IN THE CHINAREVSKOYE FIELD OF THE WEST KAZAKHSTAN REGION
Authors:   WEST KAZAKHSTAN AGRARIAN AND TECHNICAL UNIVERSITY NAMED AFTER ZHANGIR KHAN, 51 Zhangir Khan st., Uralsk, 090009, Republic of Kazakhstan, SATAYEV S.S. , MURZAGALIYEVA A.A. ,   WEST KAZAKHSTAN AGRARIAN AND TECHNICAL UNIVERSITY NAMED AFTER ZHANGIR KHAN, 51 Zhangir Khan st., Uralsk, 090009, Republic of Kazakhstan, NAZAROVA D.S. ,   WEST KAZAKHSTAN AGRARIAN AND TECHNICAL UNIVERSITY NAMED AFTER ZHANGIR KHAN, 51 Zhangir Khan st., Uralsk, 090009, Republic of Kazakhstan
Published: May 2022

The paper analyzes the factors influencing the development of high-quality and cost-effective oil and gas reserves in the region (assessment, design). In order to operate wells, directions for calculating the size of reserves have been found. The scientific and technical trends of their (wells) development are considered. A comprehensive analysis of complex surveys was carried out at well No32 of the Chinarevskoye oil and gas condensate field, located in the southern section of the region. Hydrodynamic studies were carried out by interpreting the pressure recovery curve (PRC) to determine reservoir pressure, reservoir properties and the state of the bottomhole zone. These studies confirmed the low porosity properties of the reservoir: permeability - 0.004 mkm2 , conductivity - 0.056 mkm2 *m, hydraulic conductivity - 0.055 mkm2 *m/MPa*s. The skin factor varied in the range from - 0.92 to 18.4, which indicates a deterioration in the state of the bottomhole formation zone. Reservoir pressure dynamics (reduced to WOC) according to hydrodynamic studies showed that in the deposit, as the reservoir is withdrawn, there is a decrease in reservoir pressure. As of October 2019, according to the pressure build-up data, the formation pressure in well 32 (at the VNK level) is 38 MPa. Well 32 during the analyzed period (5 months) worked in three modes (from July to September 2019 with a washer with a diameter of 6 mm, from the end of September with a washer with a diameter of 8 mm, in October - 10 mm). At the same time, with an increase in the washer diameter to 8 and 10 mm, the downhole working pressure sharply decreased from 25 to 11 MPa and the static bottomhole pressure from 37.5 to 29.7 MPa. During the analyzed period, the well worked with a bottomhole pressure below the saturation pressure of oil with gas. The average gas-oil ratio was 757 m3/m3.
THERMAL ANALYSIS OF OXIDATION PRODUCTS OF ACTIVATED RAU-85 ALUMINUM ALLOY IN VARIOUS OXIDIZING ENVIRONMENTS
Authors:   ALE «ASSOCIATIONS OF PRODUCERS AND CONSUMERS OF PETROCHEMICAL PRODUCTS», 17/10, E 10, st., Nur-Sultan, 010000, Republic of Kazakhstan, SARMURZINA R.G. , BOIKO G.I. ,   NJSC «K.I. SATPAEV KAZAKH NATIONAL RESEARCH TECHNICAL UNIVERSITY», 22 Satpaev st., Almaty, 050043, Republic of Kazakhstan, KARABALIN U.S. ,   ALE «KAZAKHSTAN ASSOCIATION OF ORGANIZATIONS OF THE OIL AND GAS AND ENERGY COMPLEX «KAZENERGY», 19, Kabanbai Batyr Ave., Block A., Nur-Sultan, 010000, Republic of Kazakhstan, TIESOV D.А. ,   JSC NC "KAZMUNAYGAS" 8, Kunaev, st., Nur-Sultan, 010000, Republic of Kazakhstan, LYUBCHENKO N.P. ,   NJSC «K.I. SATPAEV KAZAKH NATIONAL RESEARCH TECHNICAL UNIVERSITY», 22 Satpaev st., Almaty, 050043, Republic of Kazakhstan, DEMEUBAYEVA N.S. ,   NJSC «K.I. SATPAEV KAZAKH NATIONAL RESEARCH TECHNICAL UNIVERSITY», 22 Satpaev st., Almaty, 050043, Republic of Kazakhstan
Published: May 2022

By methods of differential thermal and thermogravimetric analysis, the composition of the thermally active part of the studied multicomponent samples of the products of the interaction of the activated aluminum alloy with various oxidizers was determined, and their thermal behavior was revealed under conditions of dynamic temperature rise. Thermal analysis was carried out in air environment, in the temperature range from 20 to 1000°C. The heating mode of the furnace was linear (dT/dt = 10 grad/min), the reference substance was calcined Al2 O3 . Water, 3% aqueous solution of hydrogen peroxide, 5% aqueous solution of sulfuric acid were used as oxidizing agents. Establishment of the material composition of the active part of powder samples was carried out according to the morphologies of thermal curves and numerical values of the intensities of endo- and exothermic effects using the thermogravimetric readings of TG-lines associated with them. A series of endo- and exothermic effects revealed during the decomposition of the test samples made it possible to follow the order of the stage of their thermal destruction and quantitatively determine the composition of volatile components. A number of features of sample decomposition were established depending on their composition and weight ratios of thermally active sample components. The obtained data on the thermal analysis of the oxidation products of the activated alloy RAU-85 in various oxidizing environments can be successfully applied to develop a technology for cleaning the bottomhole zone of the well from asphalt resin paraffin deposits, based on the thermal gas-chemical interaction of the activated aluminum alloy and formation water, which results in the formation of a large amount of heat and vapor-gas mixture.
Devouring profit the socio-economics of coffee berry borer IPM.
Authors: Duque Hernando , Baker Peter
Published: May 2022

This book is the result of the project "Integrated Management of the CBB" (CFC/ICO/02), carried out in Colombia, Ecuador, Guatemala, Honduras, India and Mexico. It discusses aspects such as the control of the CBB /Hypothenemus hampei/ in the 6 countries, the economic losses caused by this pest, the costs of its control and finally, some recommendations for CBB control policies are made.
crisis ruso-ucraniana: un análisis jurídico al conflicto en Europa del Este
Authors: Maúrtua de Romaña Oscar
Published: May 2022

La crisis ruso-ucraniana presenta una serie de complejos planteamientos al derecho internacional que parten desde las declaraciones de independencia de Donetsk y Lugansk y hasta el uso de la fuerza para reivindicar territorios o para hacer cumplir las convenciones internacionales. Lo cierto es que el derecho internacional y la Carta de las Naciones Unidas buscan prohibir cualquier amenaza o uso de la fuerza contra la soberanía e integridad de un Estado, sin importar el tipo de la controversia, diferendo o la reivindicación histórica o cultural de un territorio. Estas inviolables disposiciones jurídicas deben ser analizadas y contrastadas con hechos fácticos para una mejor comprensión de la gravedad de esta agresión contra Ucrania y contra la paz y seguridad internacionales.
desarrollo sostenible en el derecho internacional y su relación con el cambio climático
Authors: Carnero Arroyo Ena
Published: May 2022

El presente articulo tiene como objeto de estudio la relación entre el principio del desarrollo sostenible en el derecho internacional y el cambio climático. En primer lugar, se analiza la evolución del concepto de desarrollo sostenible mediante el estudio de las distintas conferencias de las Naciones Unidas sobre Medio ambiente y Desarrollo (Cumbres de la Tierra); así como algunos tratados que contienen elementos del concepto. Esto nos permite deducir que el desarrollo sostenible se ha incorporado como un principio en distintas áreas del derecho internacional. En segundo lugar, se examina el cambio climático a la luz de la Convención sobre Cambio Climático, el Protocolo de Kioto, el Acuerdo de París y los ODS, enfocándonos en los principios relacionados con el desarrollo sostenible.
constituciones del Perú ante el derecho internacional
Authors: Malapi Hernández Daniela Francesca
Published: May 2022

Tras celebrar el Bicentenario de la Independencia del Perú, el presente artículo tiene como  objetivo relacionar los principales sucesos acontecidos en el devenir del Derecho  Internacional, así como sus avances en el plano normativo, con las más importantes  disposiciones que fueron consagradas en las constituciones políticas dadas en nuestro  desarrollo histórico. Esta relación hizo posible la implementación del ordenamiento  jurídico internacional en el derecho interno. En la primera parte, se hará un repaso de los  principales hitos en la historia del Derecho Internacional que dieron las pautas para la  estructura primigenia de la primera Constitución peruana; en la segunda y tercera parte, se identificarán las principales disposiciones constitucionales que acogieron diferentes  categorías y principios del Derecho Internacional vigentes desde y durante el siglo XIX  y el siglo XX, respectivamente, y que, a su vez, aportaron para la consolidación de determinados conceptos y normas jurídicas que hoy están presentes en diversos  instrumentos internacionales.
EMPIRICAL ANALYSIS OF THE EFFECTS OF DIFFERENT SPECTRUM UV AND HINS RAYS ON COVID-19 AND IMPACT OF ECONOMIC PROCESS AND FOR THE MANUFACTURE OF PRODUCTS
Authors: Gaidelys Vaidas , Naudžiūnaitė Emilija
Published: May 2022

In late 2019, a new coronavirus, known as a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was identified as a cause of numerous pneumonia cases in Wuhan, a city in Hubei Province, China. This virus quickly spread and caused a global pandemic. 2020, the World Health Organisation (WTO) named the new coronavirus dis-ease COVID-19. Most coronaviruses are non-hazardous, but the new virus that causes COVID-19 is an exception to the rule. The purpose of this article was to evaluate the effects of different spectra of UV and HINS rays on COVID-19 and their market introduction in the context of global demand. There are three main tasks of the study. First, verifica-tion of the latest COVID-19 virus studies in terms of accuracy and test duration, depending on whether a sample is taken from surfaces or from an aerosol. Second, comparison of COVID-19 identification by employing viral polymer-ase chain reaction (PCR), antigen detection and other methods. Third, economic description and justification of the testing algorithm. The results indicate that SARS-CoV-2 is a highly contagious coronavirus that causes COVID-19 and is transmitted through air droplets and aerosols as well as through close contacts. The high risk of SARS-CoV-2 spread in confined spaces and through aerosol-generating medical procedures has been confirmed. SARS-CoV-2 can remain viable in air in liquid droplets <1 µm in diameter for up to 3 hours. Aerosol (<5 μm) SARS-CoV-2 persists longer on plastic and stainless steel than on copper and cardboard. SARS-CoV-2 is sensitive to ultraviolet light. The use of UV and HINS rays in the production of COVID-19 products also has a significant impact on national economies.
ECONOMIC FREEDOM AND EDUCATIONAL ATTAINMENT: EVIDENCE FROM NEW EU MEMBER STATES
Authors: Sart Gamze , Bayar Yilmaz , Sezgin Funda Hatice
Published: May 2022

Educational attainment is a critical factor for individuals and societies given its positive economic implications. Therefore, determinants of educational attainment are important for design and implementation of educational policies. In the article, the causal interaction between economic freedom and educational attainment is investigated in sample of the new European Union states over the 2000–2019 term by means of causality test. The consequences of panel level causality analysis reveal a bilateral causality between economic freedom and educational attainment in the sample. In other words, on the one hand econometric freedom has a significant influence on educational attainment, on the other hand educational attainment has a significant influence on economic freedom. Furthermore, country level causality analysis uncovered a bilateral causality between economic freedom and educational attainment in Lithuania, a unidirectional causality from economic freedom to educational attainment in Latvia, a unidirectional causality from educational attainment to economic growth in Bulgaria, Czechia, Hungary, and Slovenia.
Potential for informal guardianship in community-based wildlife crime prevention: Insights from Vietnam
Authors: Viollaz Julie , Rizzolo Jessica Bell , Long Barney , Trung Cao Tien , Kempinski Josh , Rawson Benjamin M. , Reynald Danielle , Quang Hoang Xuan , Hien Nguyen Ngoc , Dung Cao Tien , Huyen Hoang Thuong , Thuy Dung Nguyen Thi , Gore Meredith L.
Published: May 2022

The notion that indigenous people and local communities can effectively prevent conservation crime rests upon the assumption that they are informal guardians of natural resources. Although informal guardianship is a concept typically applied to “traditional” crimes, urban contexts, and the global North, it has great potential to be combined with formal guardianship (such as ranger patrols) to better protect wildlife, incentivize community participation in conservation, and address the limitations of formal enforcement in the global South. Proactive crime prevention is especially important for illegal snare hunting, a practice that has led to pernicious defaunation and which has proved difficult to control due to its broad scope. This paper uses interview data with community members in protected areas in Viet Nam where illegal snare hunting is commonplace to 1) analyze the conditions for informal guardianship in the study locations; 2) explore how community members can become more effective informal guardians; and 3) examine how formal and informal guardianship mechanisms can be linked to maximize deterrence and limit displacement of illegal snaring. Results indicate that conditions for informal guardianship exist but that respondent willingness to intervene depends upon the location, offender activity, and type of offender (outsider versus community member). While respondents generated numerous strategies for wildlife crime prevention, they also listed crime displacement mechanism offenders used to avoid detection. We discuss how informal guardianship can be integrated with formal guardianship into an overall model of situational crime prevention to protect wildlife and incentivize community-led deterrence of illegal snaring.
Niveles de óxidos de nitrógeno en construcción de túneles con el NATM durante el periodo de transición de la Directiva 2017/164/EU
Authors: García González Héctor , González García Johnatan , González-Cachón Fernández Sergio , Pellicer Mateos Sergio
Published: May 2022

La Directiva 2017/164/UE reducirá drásticamente los niveles de NO y NO2 en minería subterránea y construcción de túneles, existe preocupación con respecto a la viabilidad de los niveles propuestos y se estableció un período de transición que finaliza en agosto de 2023, está prevista una reevaluación de su aplicabilidad antes del final de este período. El estudio se realizó en un túnel de autopista de 2 km, sección de excavación de 102 m², método de excavación NATM, el túnel seleccionado es representativo del sistema de construcción de túneles en España. Este documento tiene como objetivo analizar los niveles de gas NO y NO2 durante la construcción del túnel y comparar los resultados con el nivel propuesto en la Directiva 2017/164/UE y los niveles vigentes. El informe concluye que se deben hacer esfuerzos para alcanzar los niveles de la Directiva en 2023. Se dan recomendaciones para alcanzar el nivel propuesto.
Análisis de ciclo de vida en bloques de hormigón: comparación del impacto producido entre bloques tradicionales y con subproductos
Authors: Madrid Maggi , García Frómeta Yokasta , Cuadrado Jesús , Blanco Jesús María
Published: May 2022

Reutilizar subproductos para el desarrollo de bloques de hormigón que sean más sostenibles y con mejores propiedades térmicas, para el sector de la edificación es una necesidad y buena alternativa a desarrollar en el sector construcción. Se realizó un análisis del ciclo de vida (ACV) a los bloques con y sin subproductos, a fin de cuantificar los beneficios medioambientales que conllevaría la incorporación de estos subproductos en los bloques. El ACV se realizó de acuerdo con lo establecido en la norma EN-ISO 15804, que establece las reglas de cálculo para el análisis de productos de construcción. Este análisis se ha realizado mediante la herramienta de software “Eco-it”, con un alcance de la cuna a la puerta. Con base a los resultados se puede concluir que, la sustitución parcial del árido fino por las virutas y del cemento por los lodos de cal en la mezcla, es una vía alternativa para obtener bloques más respetuosos con el medio ambiente y a su vez con mejores propiedades térmicas.
The cognitive-behavioral aspects of the Mulligan concept of manual therapy: A systematic review
Authors: Athanasiadis Dimitrios , Dionyssiotis Yannis , Krumov Julian , Obretenov Vasil , Panayotov Kiril , Papathanasiou Jannis
Published: May 2022

Low back pain (LBP) is a common clinical problem imposing a prominent socio-economic burden. The purpose of this systematic review was to investigate the biopsychosocial effects of the Mulligan Concept (MC) of manual therapy (MT) when applied to patient's with LBP. Three researchers independently evaluated the literature quality, and completed a review on five online databases (Medline, Cochrane Library, Science Direct, ProQuest and Google Scholar) for articles published from January 1st 2010 to November 20th 2021, using a combination of free words, Wildcards and Medical Subject Headings (MESH) terms: " Mulligan mobilization " AND " back pain " OR " SNAGs." In total, 62 studies were selected for full-text reading, from which finally 6 studies were included in the present review. The results revealed that the studies where the MC of MT was applied to treat LBP mainly lacked concern regarding the effect that the intervention has on the cognitive and behavioural parameters. The ones that introduced measure outcomes for at least some parts of the cognitive behavioural components, showed that the MC has a positive effect, even though without a long-term follow-up assessment. This review summarized that the evidence of the MC on cognitive behavioural (CB) aspects of patients with LBP is controversial and scarce.