bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigasi Pengaruh Step Training pada Metode Single Shot Multibox Detector untuk Marker dalam Teknologi Augmented Reality
Authors: Sutama Vivian Alfionita , Wibowo Suryo Adhi , Rahmania Rissa
Published: December 2021

Nowadays, Artificial Intelligence is one of the most developing technology, especially on Augmented Reality (AR). AR is a technology which connected between real world and virtual in a real time that allows user to interact directly and display it in 3D. AR technology has two methods, that are AR based on marker and AR based on markerless. However, AR based on marker need an object detection system which has high performance as an interaction tools between user and the device. Single shot multibox detector (SSD) is an object detection algorithm that has fast learning computation and good performance. This method is affected by some parameters like number of epoch, learning rate, batch size, step training, etc. However, to create a good system it took a long process such as taking dataset, labelling process, then training and testing models to gain the best performance. In this experiment, we analyze SSD method in AR technology using inception architecture as pre-trained Convolutional neural network (CNN), and then do transfer learning to minimize amount training time. The configuration that used is the number of step training. The result of this experiment gets the best accuracy in 70.17%. Then, the best performance is used as an object detection model for marker’s AR technology.Abstrak Saat ini, Artificial intelligence merupakan teknologi yang sedang berkembang pesat. Salah satunya adalah teknologi Augmented Reality (AR). AR adalah teknologi yang menggabungkan dunia nyata dengan virtual secara real-time dengan interaksi pengguna secara langsung dan menampilkannya dalam bentuk 3D. Teknologi AR ini memiliki dua metode yaitu dengan marker dan markerless. Dalam perkembangannya, AR berbasis marker membutuhkan sistem deteksi objek yang memiliki performa tinggi sebagai alat interaksi antara pengguna dengan perangkatnya. Single shot multibox detector (SSD) merupakan algoritma deteksi objek yang memiliki komputasi pembelajaran dan kinerja yang baik. Metode ini dipengaruhi oleh beberapa parameter seperti jumlah lapisan konvolusi, epoch, learning rate, jumlah batch, step training, dll. Namun, dalam mengimplementasikannya diperlukan proses yang cukup panjang seperti, pengambilan dataset, proses pelabelan, proses pelatihan menggunakan metode SSD, dan melakukan pengujian terhadap beberapa model untuk mencari perfomansi paling baik. Dalam percobaan ini, kami melakukan analisis terhadap metode SSD pada teknologi AR menggunakan arsitektur Inception sebagai pre-trained Convolutional neural network (CNN), kemudian dilakukan transfer learning untuk memperkecil jumlah kelas data pelatihan dan waktu pelatihan data. Konfigurasi yang digunakan berupa jumlah step pada pelatihan. Hasil dari penilitian ini menunjukan akurasi terbaik sebesar 70,17%. Kemudian, perfomansi terbaik digunakan sebagai model deteksi objek untuk marker pada teknologi AR.
Optimasi Keamanan Informasi Pendaftaran Event Menggunakan Teknologi Blockchain
Authors: Busthomi Iqbal , Riadi Imam , Umar Rusydi
Published: December 2021

Abstract CV. Nyebar is an IT-based start-up that deals with event data management using a web-based application. The Event system provides account registration services as a Member and Organizer. Members of the Event System must first have an account and log-in to be able to register for the event. The process of registering events so far has not been properly secured. The event registration process will send registrant information, but the information sent has not been secured and validated first, so the Event System is still vulnerable to cyber-attacks including the registration data sniffing attack and Distributed Denial of Service (DDoS) attacks. DDoS attacks are carried out by sending messages and packet requests continuously to the business sector, hosting, social sites originating from bot at one time, resulting in overloaded network servers because of the resources (bandwidth, memory, and CPU usage) they have. the network server is used up. Blockchain which has three techniques/mechanisms including the use of hashes and proof-of-work mechanisms which can be an alternative security for event registration information because it can maintain information security, data consistency, and DDoS attacks.Keyword: Web Application, Distributed Denial of Service (DDoS), BlockchainAbstrak CV. Nyebar merupakan start-up berbasis IT yang bergelut dibidang pengelolaan data event menggunakan sebuah aplikasi berbasis web. Sistem Event menyediakan layanan pendaftaran akun sebagai Member dan Organizer. Member dari Sistem Event harus memiliki akun dan log-in terlebih dahulu untuk mendaftar sebuah event. Proses pendaftaran event sejauh ini belum diamankan dengan baik. Proses pendaftaran event akan mengirimkan informasi pendaftar, namun informasi yang dikirimkan belum diamanakan dan divalidasi terlebih dahulu, sehingga Sistem Event masih rentan akan serangan siber diantaranya adalah serangan sniffing data pendaftaran dan serangan Distributed Denial of Service (DDoS). Serangan DDoS dilakukan dengan mengirimkan pesan dan permintaan paket secara terus menerus kepada sektor bisnis, hosting, situs sosial yang berasal dari bot dalam satu waktu, sehingga mengakibatkan server jaringan menjadi overload karena sumber daya (bandwith, memory, dan CPU usage) yang dimiliki server jaringan habis terpakai. Blockchain yang memiliki dua teknik/mekanisme antara lain adalah penggunaan hash dan mekanisme proof-of-work, yang dapat menjadi alternatif pengamanan informasi pemdaftaran event karena dapat menjaga keamanan informasi, kekonsistenan data, dan serangan dari DDoS.Keyword: Aplikasi Web, Distributed Denial of Service (DDoS), Teknologi Blockchain
Klasifikasi Glaukoma Menggunakan Artificial Neural Network
Authors: Qhisthana Pratika Alva Rischa , Magdalena Rita , Nur Fuadah R Yunendah
Published: December 2021

Abstract Glaucoma is an eye disease caused by increased eyeball pressure resulting in damage to the optic nerve and the second leading cause of blindness after cataracts. Nerve damage often occurs without symptoms so that an early examination can reduce the risk of glaucoma. Therefore, the authors designed a glaucoma detection system through eye fundal images that can facilitate the detection of glaucomaby extracting various features like Rim to Disc Ratio, Cup to Disc Ratio (CDR), Vertical Cup to Disc Ratio (VCDR), Horizontal Cup to Disc Ratio (HCDR), and Horizontal to Vertical CDR (H-V CDR) with Morphological Operations dan Thresholding for segmentation of Optic Disc (OD) and Optic Cup (OC). Artificial Neural Network (ANN) is used as a classifier of glaucoma. Through this method, the test data can be divided into two classifications namely normal eyes and glaucoma eyes. 62 pieces of data will be trained and 62 pieces of data will be tested. The results obtained aim to facilitate early detection of glaucoma eyes. Accuracy on training data reaches 100% and accuracy in this study is reached 93.5484%.Keyword: Glaucoma, Morphological Operation, Thresholding, Artificial Neural Network AbstrakGlaukoma adalah penyakit mata yang disebabkan oleh peningkatan tekanan bola mata sehingga terjadi kerusakan saraf optik dan dapat menyebabkan kebutaan nomor dua setelah katarak. Kerusakan saraf sering terjadi tanpa gejala sehingga pemeriksaan dini dapat mengurangi resiko dari glaukoma. Oleh karena itu, penulis merancang suatu sistem untuk mendeteksi glaukoma melalui citra fundus mata dengan mengekstraksi beberapa fitur yaitu Rim to Disc Ratio, Cup to Disc Ratio (CDR), Vertical Cup to Disc Ratio (VCDR), Horizontal Cup to Disc Ratio (HCDR), dan Horizontal to Vertical CDR (H-V CDR) dengan mengsegmentasi Optic Disc (OD) dan Optic Cup (OC) dengan menggunakan metode Morphological Operations dan Thresholding. Artificial Neural Network (ANN) digunakan sebagai metode klasifikasi glaukoma. Melalui metode tersebut, data uji dapat dibagi dalam dua klasifikasi yaitu mata normal dan mata glaukoma. Data latih yang akan diambil sebanyak 62 buah dan data uji yang akan diambil sebanyak 62 buah. Hasil yang diperoleh bertujuan untuk memudahkan mendeteksi secara dini mata glaukoma. Akurasi pada data latih mencapai 100% dan akurasi pada data uji mencapai 93,5484%.Kata kunci: Glaukoma, Morphological Operation, Thresholding, Artificial Neural Network
Prototipe Sistem Notifikasi Kecelakaan dan Wiper Otomatis pada Helm dengan Mikrokontroler Arduino
Authors: Anggraini Nenny
Published: December 2021

Kecelakaan lalu lintas adalah suatu kejadian yang tidak diharapkan atau tidak diharapkan yang terjadi di jalan terhadap satu atau lebih pengguna jalan, yang mengakibatkan timbulnya korban jiwa manusia atau kerugian harta benda. Sehubungan dengan hal tersebut, kami menyebarkan kuesioner kepada 30 pengendara sepeda motor tentang kecelakaan lalu lintas. Kami menemukan bahwa 16% responden atau anggota keluarganya pernah mengalami kecelakaan, namun 75% dari mereka tidak segera mengetahui bahwa anggota keluarganya mengalami kecelakaan. Fakta lainnya, 83% pengendara sepeda motor terganggu oleh hujan yang mengenai kaca helm. Masalah ini menjadi motivasi kami untuk merancang sebuah prototipe wiper helm otomatis yang terintegrasi dengan sistem notifikasi kecelakaan. Sensor piezoelektrik digunakan untuk mendeteksi benturan pada helm. Jika benturan terdeteksi, modul GSM akan segera memberi tahu anggota keluarga yang terdaftar di sistem. Untuk meminimalisir gangguan hujan, kami melengkapi helm ini dengan wiper otomatis. Sebuah sensor hujan digunakan untuk modul ini, terhubung ke motor servo untuk menggerakkan wiper yang dimodifikasi. Pada tahap evaluasi, beberapa pengujian dilakukan untuk sistem notifikasi kecelakaan dan wiper otomatis. Hal ini menunjukkan 90% notifikasi berhasil diterima oleh anggota keluarga saat terjadi benturan, dan 100% wiper otomatis bergerak dengan benar untuk menyeka air hujan pada kaca helm.
IMPLEMENTASI FACE RECOGNITION DENGAN OPENCV PADA “SMART CCTV” UNTUK KEAMANAN BRANKAS BERBASIS IOT
Authors: Anggraini Nenny , Martunus Fikriansyah , Marzuki Shofi Imam , Wardhani Luh Kesuma
Published: December 2021

Salah satu Hak Asasi Manusia yang mendasar adalah hak atas rasa aman, hak atas rasa aman ini tidak saja dalam pengertian fisik, psikis tetapi juga hak atas keamanan harta benda. Perusakan atau pembobolan terhadap brankas merupakan salah satu pelanggaran keamanan terhadap barang. Setiap lemari besi atau brankas mempunyai tingkat proteksi yang berbeda-beda yang mesti lulus terhadap pengujian tersertifikasi sesuai dengan standar internasional. Peneliti mencoba mengembangkan penggunaan CCTV dengan membuat sebuah alat yaitu smart CCTV menggunakan Raspberry Pi 4 berbasis IoT. Dengan memanfaatkan face recognition yang merupakan salah satu metode dari library pada open source computer vision (opencv), alat ini dapat memantau orang-orang yang mendekati brankas dan kemudian mengirimkan gambar melalui aplikasi telegram pada smartphone apabila orang tersebut tidak dikenali. Berdasarkan hasil penelitian didapatkan hasil akurasi dari 40-69% terhadap pengenalan wajah dan kesesuaian fungsi sebesar 100%.
The EU competition rules and impact on increasing market competitiveness on the Western Balkans
Authors: Tota Elton , Hasanpapaj Bardhyl
Published: December 2021

Harmonizing national legislation with the EU acquis and developing capacities of the national competition authorities (NCA) remains a core element for increasing market competitiveness for the countries of the Western Balkans (WB). This research paper using a comparative approach while analysing data and information from a chronological point of view identifies the lack of progress of the Stabilization and Association Agreement (SAA) countries in the EU integration process. The paper identifies that most of the WB countries show similar shortcomings from the past which are still present and the progress achieved in this in the EU path is limited. The paper concludes that in order to achieve the targets defined in the SAAs the WB countries should enhance their efforts to not only approximate their legislation with the EU acquis but, in addition, establish appropriate mechanisms and increase the implementation capacities. The conclusions of the paper may be relevant for further researches regarding the more challenging issue as to why competition law in the WBs has not been sufficiently understood and developed in this region. Understanding and embracing the competition rules is important for economic development in general (Buccirossi & Ciari, 2018) while it contributes directly to the living standard of the citizens (Najdanović, Mladenović, & Tutek, 2019). This paper tries to contribute to this area of study which is not sufficiently studied as well and publications therein are not that many
ACCURACY OF TRANSTHORACIC ECHOCARDIOGRAPHY IN DIAGNOSIS OF CARDIAC MYXOMA: SINGLE CENTRE EXPERIENCE
Authors: Prokšelj Katja , Kačar Polona , Pavšič Nejc , Bervar Mojca , Stražar Zvezdana Dolenc
Published: December 2021

The differential diagnosis of cardiac myxomas (CM), the most common
benign primary cardiac tumors, is broad and a thorough diagnostic workup
is required to establish accurate diagnosis prior to surgical resection.
Transthoracic echocardiography (TTE) is usually the first imaging
modality used for diagnosis of suspected CM. Purpose In a
single tertiary centre study, we sought to determine the accuracy,
sensitivity, and specificity of TTE in the diagnosis of CM and to
determine echocardiographic characteristics indicative of CM.
Methods and results We retrospectively analyzed clinical,
echocardiographic, and pathohistological findings of 73 patients
consecutively admitted for suspected CM. After diagnostic workup, 53
(73%) patients were treated surgically at our institution. Based on
preoperative TTE, patients were divided into a CM group (n=45, 85%) and
non-myxoma (NM) group. Of the 53 pathohistological specimens obtained
during surgery, 39 (73%) were CM. The sensitivity and specificity of
preoperative echocardiography were 97% and 50%, respectively. The
overall accuracy was 85%. All NM tumors were found in an atypical
location and 72% of CM were found in a typical position in the left
atrium (p<0.001). Tumors in NM group were significantly
smaller than CM (24.3±13.2 mm vs 37.9±18.3 mm, p=0.017).
Conclusion Our study confirms very good accuracy of TTE in the
diagnosis of CM. The most important echocardiographic characteristics to
differentiate between CM and tumors of different etiology are tumor
location and size. Smaller tumors presenting at an atypical location are
less likely to be diagnosed as CM, and these require additional imaging
modalities for accurate diagnosis.
Asymmetry drives the cumulative impacts of multiple stressors on freshwater ecosystems under a warming climate
Authors: Morris Olivia , Loewen Charlie , Woodward Guy , Schaefer Ralf , Piggott Jeremy , Vinebrooke Rolf , Jackson Michelle
Published: December 2021

Climate warming is an important stressor in freshwater ecosystems, yet
its interactive effects with other environmental changes are poorly
understood. We address this challenge by testing the ability of three
contrasting null models to predict the joint impacts of warming and a
second stressor using a new database of 296 experimental combinations.
Despite concerns that stressors will interact to cause synergisms, we
found that net impacts were best explained by the effect of the worst
stressor (the dominance null model). When this stressor’s impact was at
least 50% greater than that of the second, the dominance model was most
accurate in 62% of responses. Prediction accuracy depended on the
identity of the stressors and declined at higher levels of biological
organisation. Together these findings suggest we can often effectively
forecast impacts of multiple stressors by focusing on the degree of
asymmetry that exists among their independent impacts.
The impact of including a medication review in an integrated care pathway: a pilot study
Authors: Payen Anaïs , Godard-Sebillotte Claire , Sourial Nadia , Soula Julien , Verloop David , Defebvre Marguerite-Marie , Dupont Corinne , Dambre Delphine , Lamer Antoine , Beuscart Jean-Baptiste
Published: December 2021

Objective: Our hypothesis was that the intervention would decrease (or
at least not increase) the number of potentially inappropriate
medications (PIMs) and the number of hospital readmissions within 30
days of discharge per hospital stay. Methods: A cohort of hospitalized
older adults enrolled in the PAERPA integrated care pathway (the exposed
cohort) was matched retrospectively with hospitalized older adults not
enrolled in the pathway (unexposed cohort) between January 1st, 2015,
and December 31st, 2018. It was an analysis of French health
administrative database. The inclusion criteria for exposed patients
were admission to an acute care department in general hospital, age 75
or over, at least three comorbidities or the prescription of diuretics
or oral anticoagulants, discharge alive, and performance of a medication
review. Results: For the study population (n=582), the mean ± standard
deviation age was 82.9 ± 4.9, and 190 (65.3%) were women. Depending on
the definition used, the overall median number of PIMs ranged from 2
[0;3] upon admission to 3 [0;3] at discharge. The intervention
was not associated with a significant difference in the mean number of
PIMs. Patients in the exposed cohort were half as likely to be
readmitted to hospital within 30 days of discharge, relative to patients
in the unexposed cohort. Conclusion: Our results show that a medication
review was not associated with a decrease in the mean number of PIMs.
However, the integrated care intervention including the medication
review was associated with a reduction in the number of hospital
readmissions at 30 days.
Status, Maintenance of Security, and Militarized Foreign Policy
Authors: Viskupič Filip
Published: December 2021

How does status affect foreign policy outcomes? Scholars have long argued that status is a salient foreign policy driver and that states even fight for status, but there is no consensus on how to think about this relationship. I propose that unpacking the link between status and role in international relations can help scholars analyze how status shapes national security outcomes. I illustrate the usefulness of this framework on the processes leading to Australia’s intervention in the Solomon Islands. An analysis of speeches by Australia’s leaders reveals that concern for maintaining Australia’s status as the leader of the Pacific and the role of maintainer of regional order and security affected the decision to dispatch an intervention.
Urbanistički program grada Zagreba iz 1965.
Authors: Bencetić Lidija , Jurić Zlatko
Published: December 2021

Prvi urbanistički dokument donesen nakon Drugoga svjetskog rata kojim se regulira urbanistički razvoj Zagreba jest Urbanistički program grada Zagreba: smjernice za razvoj
iz 1965. godine. Dokument je predložen 1963., a prihvaćen 1965., i smatra se sljednikom prethodnih urbanističkih planova (1940.) i prijedloga (1949. i 1953.). Program je izradio Urbanistički zavod grada Zagreba na čelu s direktorom i glavnim projektantom ing. Zdenkom Kolacijem. Izradu programa pratile su brojne tehničke i financijske poteškoće, a ovim radom analizirat će se koliko je bio uspješan u realizaciji te kakva je rješenja ponudio. U socijalističkoj Jugoslaviji urbano planiranje bilo je podređeno društveno-ekonomskom razvoju te je imalo ulogu davanja prostorno-tehničkih osnova za gospodarski razvoj (industrijalizacija), koji će slijediti društveni razvoj. Ova konstatacija ima svoje temelje u dokumentu Urbanistički program grada Zagreba
jer su u njemu jasno definirani elementi društvenoga planiranja. U ovome radu bit će prikazano koliko se i kako društveno i urbanističko planiranje isprepleću, dopunjavaju i/ili uvjetuju jedno drugo.
Cijena neodmjerenoga investiranja. Uzroci i posljedice štrajka u riječkoj luci 1969. godine
Authors: Dobrivojević Tomić Ivana
Published: December 2021

Tema rada je veliki štrajk u riječkoj luci koji je izbio u lipnju 1969. godine. Iako je taj, na momente i nasilan, izljev radničkoga nezadovoljstva iznenadio i uznemirio partijski vrh, u historiografiji je
ta epizoda ostala gotovo nepoznata. U radu ćemo analizirati uzroke štrajka, njegove posljedice i reakcije koje je izazvao u državnom rukovodstvu. Korišteni su izvori iz Arhiva Jugoslavije, kao i relevantna
periodika i literatura.
Srpski liberali i Hrvatsko proljeće
Authors: Bešlin Milivoj , Žarković Petar
Published: December 2021

U radu se analiziraju politička stajališta reformskih političkih elita u
Srbiji i Hrvatskoj o ključnim pitanjima unutarnjega razvoja Jugoslavije
početkom 1970-ih. Oba republička partijska rukovodstva stupila su na političku scenu u zenitu jugoslavenske reformske orijentacije i vala liberalizacije nakon Brijunskoga plenuma. Nova generacija srpskih i hrvatskih komunista zasnivala je svoje reformske programe na idejama demokratizacije i emancipacije jugoslavenskoga samoupravnog socijalizma.
Borba za novi koncept Jugoslavije, tržišnu privredu, reformu Saveza komunista Jugoslavije i liberalizaciju društva povezivala je političke elite Zagreba i Beograda. Međutim, neriješeni odnosi u federaciji, skupa
s porastom nacionalizma i snažnim otporom partijskih konzervativaca, određivali su krajnje domete suradnje reformskih snaga i perspektive razvoja demokratskoga i tržišnoga socijalizma u Jugoslaviji.
Sovjetski pogled na zbivanja u Hrvatskoj i Jugoslaviji u drugoj polovini 1950-ih i početkom 1960-ih
Authors: Sokulski Mateusz
Published: December 2021

U članku je analiziran sovjetski pogled na zbivanja u drugoj najvećoj jugoslavenskoj republici tijekom druge polovine 50-ih i prve polovine 60-ih godina. Uzeta je u obzir situacija u Jugoslaviji i međusobni odnosi Beograda i Moskve. Dosad su se povjesničari zanimali prije svega za političku dimenziju međusobnih odnosa i sovjetske ocjene političkoga stanja u Jugoslaviji. Iako su politika i ideologija bile u centru pozornosti sovjetskih diplomata, u članku nisu zanemarena ni kulturna zbivanja u Federativnoj Narodnoj Republici Jugoslaviji (od 1963. Socijalističkoj Federativnoj Republici Jugoslaviji) ni gospodarski položaj zemlje. Ove su dimenzije čvrsto povezivali s političkom sferom te podređivali sovjetskim interesima prema Jugoslaviji.
Članak je utemeljen na izvornoj arhivskoj građi prikupljenoj u Moskvi u Ruskom državnom arhivu novije povijesti (Российский государственный архив новейшей истории), u fondu Odjela za veze s komunističkim i radničkim partijama socijalističkih zemalja, koji je odgovarao za odnose
sa zemljama komunističkoga uređenja. U radu je korištena i relevantna stručna literatura.
O PROBLEMACH STOSOWALNOŚCI MIERNIKÓW SYNTETYCZNYCH DO PORZĄDKOWANIA OBIEKTÓW
Authors: Binderman Zbigniew , Borkowski Bolesław , Szczesny Wiesław , Zbyrowski Rafał
Published: December 2021

Problem budowy stabilnego wskaźnika syntetycznego służącego do porządkowania obiektów opisanych za pomocą wielu wskaźników cząstkowych był i jest przedmiotem rozważań autorów. W naszych badaniach dążyliśmy do konstrukcji miernika, który byłby mało wrażliwy na dane wejściowe, do wyników, które nie zależałyby od sposobu normalizacji zmiennych, wyboru miary odległości (podobieństwa) i doboru cech. Nasze doświadczenie jest zgodne z wynikami prac wybitnego statystyka amerykańskiego L. Breimana. Pojedynczy klasyfikator (miernik syntetyczny) może być daleki od optymalnego, natomiast kombinacje wielu dają klasyfikator bliski optymalnemu i stabilny. Niestety w przypadku zastosowania „słabych” klasyfikatorów, w wyniku kombinacji można otrzymać klasyfikator jeszcze gorszy. W pracy przedstawiliśmy na praktycznym przykładzie gospodarstw rolniczych w krajach UE objętych badaniem FADN, konsekwencje wyboru wskaźnika syntetycznego przeznaczonego do porządkowania obiektów opisanych wieloma cechami.
WIZUALIZACJA JAKO NARZĘDZIE WSPOMAGAJĄCE ANALIZĘ DANYCH W PROCESIE DYDAKTYCZNYM
Authors: Zielińska-Sitkiewicz Monika , Chrzanowska Mariola
Published: December 2021

Prezentacja informacji w postaci graficznej jest jedną z podstawowych form wizualizacji danych. Taka forma przedstawienia informacji jest dużym wsparciem zarówno podczas wstępnej, jak i dalszej analizy. Jednakże niewłaściwa forma graficzna może prowadzić do mistyfikacji, a w konsekwencji do błędnych wniosków. W niniejszej pracy zaprezentowano wybrane przykłady graficznej prezentacji danych zaczerpnięte z praktyki dydaktycznej autorek. Ponadto omówiono przypadki poprawnej oraz błędnej prezentacji danych.
Effects of Class II elastics during growth on the functional occlusal plane according to skeletal pattern and extraction vs nonextraction
Authors: Davidovitch Moshe , Konstantarakis Evangelos , Athanasios Vottas , Sella-Tunis Tatiana
Published: December 2021

Objectives

To investigate the effect of Class II intermaxillary elastics on the functional occlusal plane (FOP) of growing patients.

Materials and Methods

A total of 50 participants aged 11 to 16 years were selected from a university clinic archive >1-year after treatment and after undergoing 6 months of Class II elastic wear, taking pretreatment (T0) and posttreatment (T1) lateral cephalometric radiographs, and consenting to participate at recall (T2). Participants were divided into 3 groups according to skeletal pattern or into 2 groups according to treatment with extraction (E) or nonextraction (NE). Angular changes of FOP relative to the Sella-Nasion (SN), mandibular plane (MP), and Frankfort horizontal (FH) were compared within and between groups.

Results

A statistically significant reduction of FOP-SN/FH, but not of FOP-MP, was found from T0–T1–T2 when all patients were grouped together. FOP-SN/MP/FH was significantly the largest in the patients with a hyperdivergent skeletal pattern, but lowest in the patients with a hypodivergent skeletal pattern at T0, T1, and T2 (P < .032). FOP-MP at T0–T2 was statistically larger in group E than in group NE (P < .02). No differences were found for FOP changes (change before treatment minus after treatment and change after treatment minus 1 year after treatment) between different skeletal patterns (P > .433) and treatment groups (P > .193).

Conclusions

Use of Class II elastics during the growth period was not found to show adverse effects on FOP rotation. Neither skeletal pattern nor treatment modality differed in the response to Class II elastics with regard to FOP changes. Individual patient growth pattern must be taken into consideration when treatment planning the use of Class II elastics. Orthodontists should take into account individual skeletal and growth patterns while using Class II elastics.
Isı Borulu Güneş Kollektörlü Kurutma Sisteminin Tasarımı ve Deneysel Analizi
Authors: KAYA Edanur , DUMRUL Hakan , YILMAZ Sezayi
Published: December 2021

Endüstriyel ve tarımsal ürünler, doğal ve teknik yöntemler kullanılarak kurutulabilir. Kurutma maliyetini sıcak kurutma havasını elde etmek için harcanan enerji oluşturur. Bu çalışmada, kurutmanın enerji problemine çözüm üretmeye yönelik ısı borulu düzlemsel güneş kollektörlü ve ısı geri kazanımlı bir kurutma sistemi tasarlanmıştır. Karabük ili iklim şartlarında, sabit 1 m/s kurutma hızında, farklı ışınım değerlerinde, kuruma havası sıcaklığının değişimleri, ürün kütle kaybı ve kalitesi, ısı geri kazanımının sisteme katkısı deneysel olarak incelenmiş ve teorik analizleri yapılmıştır. Sistemde kapalı çevrimde içerisine ürün konulmadan yapılan deneyde sabit hava hızında ve ortalama 770 W/m2 ışınım değerinde kurutucu sıcaklığının dış hava sıcaklık değerinin yaklaşık olarak %49’luk bir artışla ortalama 14,63 °C üzerine çıktığı belirlenmiştir. Ürün ile kurutma deneyinde kivi meyvesi kullanılmıştır. Etüv fırınında kurutulan kivilerde yaş baza göre hesaplanan nem miktarı 0.83 g su/g yaş madde, kuru baza göre hesaplanan nem miktarı 4.94 g su/g kuru madde ve kuru madde miktarı %16,8 olarak belirlenmiştir. Kurutma işlemine, son üç ağırlık değerleri eşit çıkana kadar devam edilmiş ve nem değeri 0,03 g su/g kuru madde olana kadar kurutma gerçekleştirilmiştir. Ölçümler sonucunda ortalama 39.4 g değerine kadar kurumanın gerçekleştiği ve ürün ağırlığının %80 azaldığı belirlenmiştir. Sistemin genel verimi 4 Eylül saat 15:50’de 694,3 W/m2 ışınım değerinde maksimum %39, ısı borulu kollektörün ortalama verimi %24 ısı geri kazanım ünitesinin verimi %28’dir. Kurutma işleminde harcanan enerjinin %27’si ısı geri kazanım ünitesi, %73’ü de ısı borulu kollektör tarafından karşılanmıştır.
John Morton Coles (1930-2020). From Palaeolithic Studies to Wetland Archaeology. A Commemoration
Authors: Piotrowska Danuta , Piotrowski Wojciech
Published: December 2021

This article is dedicated to John Morton Coles (1930-2020), Professor of European Prehistory at Cambridge University between 1980 and 1986, Fellow of the British Academy, author of the highly regarded scientific works, teacher and editor. He dealt with several archaeological periods and was involved in different field projects and conducted numerous excavations. At Cambridge, in the Department of Archaeology, John Coles collaborated with such significant figures as Professors Grahame Clark and Glyn Daniel. John Coles devoted much of his time to experimental and wetland archaeology as well as to prehistoric rock carvings in Sweden and Norway. John Coles was awarded an honorary doctorate by Uppsala University. He was the advisor of Biskupin’s archaeological open-air Museum in Poland.
Editorial
Authors: Bis Magdalena , Starski Michał , Więcek-Bonowska Ewelina
Published: December 2021

The introduction to this year’s volume of Archaeologia Polona, subtitled Archaeology of post-medieval pottery in Poland and beyond. Tradition and innovation. It presents the content of the volume focused on early-modern ceramics found across present-day Poland and Czechia.
SCIENTIFIC PROFESSIONAL PUBLICATIONS OF THE INSTITUTE OF ARCHITECTURE AND DESIGN OF THE NATIONAL UNIVERSITY "LVIV POLYTECHNICS" (part II. Statistical observation)
Authors:   Department of Design and Architectural Fundamentals, Lviv Polytechnic National University, B Cherkes , L Shuldan ,   Lviv Polytechnic National University, A Valyavska ,   Lviv Politechnic National University, Department of Urban Planning
Published: December 2021

The article presents the results of statistical observation of scientific professional publications of the Institute of Architecture and Design of the Lviv Polytechnic National University: Bulletin of the Lviv Polytechnic National University and the English scientific journal "Architectural Studies" for the periods 2007-2021 and 2015-2021, respectively. The analysis of the main thematic categories, issues and articles of both journals, the composition and affiliation of editorial board members and authors of works is carried out. The main directions of improving the periodicals of the Institute of Architecture and Design and prospects for their development are determined
THEORETICAL FOUNDATIONS OF THE ORGANIZATION OF COMMUNICATIVE SPACES OF CHILDREN'S EDUCATIONAL AND REHABILITATION CENTERS
Authors:   Lviv Polytechnic National University, Department of Architectural Design, O Yurchyshyn , O Morklyanyk ,   Lviv Polytechnic National University, Department of Architectural Design, A Finaheieva ,   Lviv Polytechnic National University, the Department of Architecture Design, Ya Rakochyi ,   Lviv Polytechnic National University Department of Design and Basics of Architecture
Published: December 2021

The article provides an in-depth analysis of the theoretical foundations that precede the process of organizing communicative spaces within the children's educational and rehabilitation centre for social adaptation - an institution whose goal is to create optimal conditions for enhanced socialization of children with special psychological needs and their further integration into society. The definition of signs of children's communicative space is considered and the significance of spatial composition in the process of socialization of children is determined. The article considers key aspects of the problem – medical and architectural and determines possible factors influencing the process of expanding the network of institutions of the corresponding direction on the territory of Ukraine
The Order in The Structure of Motives of Activity: Quantitative Description
Authors: Mochalova Yulia
Published: December 2021

The purpose of the study is to conduct an empirical verification of the validity of the theoretical assumption that there is an order in the structure of motives of activity, which is determined by the proportionality between the significance of each motive in their aggregate significance and is quantitatively manifested in the parameters of the hyperbolic H-distribution ranked by the parameter. The necessary conditions for solving this problem are highlighted: a) structural elements - weakly functionally dependent on each other motives; b) in the structure of motives, the functional significance of each has a quantitative expression, which must be measured through the organization of empirical research; c) the measure of the total functional significance of all motives is limited by the situation of activity and the costs of obtaining its product. On a sample of students of the first, second, third, fourth courses of technical and humanitarian specialties (N=860) using the method of subjective assessment of the significance of each of the three motives for studying at the university in their combined significance (“acquisition of knowledge”; “mastering a profession”; “obtaining a diploma”) and using a given level of the average error of approximation of empirical results with an H-distribution of 10%, it was found that statistically, at a level of error probability less than 20%, students with an average error below a given level predominate. The possible formal and substantive reasons that led to a decrease in the validity of the result are named. The interpretation of the results in the context of the “junction” of systems theory and activity theory is presented. The directions of further research in the context of the proposed model are determined.
Regarding the strength calculationof thin-walled shells
Authors:   LLC «NPK Izotermik», Khanukhov Kh. M.
Published: December 2021

Based on the analysis of Pascal's law and the hydraulic paradox applied to vertical cylindrical, conical and spherical tanks, as well as using the hypothesis of flat sections according to the membrane theory of thin-walled shells, the author makes the following proposal: the pressure on the shell wall, according to the hypothesis of flat sections, is not produced by the entire mass of the liquid, limited by its height and area, but only by an annular shell balanced by the internal volume of the liquid. On this basis, in the formula for calculating the strength of the tank walls, correcting coefficients are supposed to be introduced. In case of these assumptions being confirmed through testing, an economic effect is expected in the most metal-intensive industry, namely, in tank construction and capacitive equipment.
The Development of Labial Clusters in the Aśokan Rock Edicts
Authors: Suzuki Yasuko
Published: December 2021

The original range of consonant clusters in Indo-Aryan reduced significantly over time, developing into geminates, homorganic nasal-stop clusters, and sonorant-h clusters in Middle Indo-Aryan. Early Middle Indo-Aryan, as represented in the Aśokan inscriptions, however, still maintained the original clusters, or what appear to be transitional stages of the extensive changes. Salient among those cluster changes that are observed in the Aśokan inscriptions are the changes tm, tv> tp and dv > db in Girnār in the west; sm, sv > sp in Shāhbāzgaṛhī and Mānsehrā in the north-west; and mh > mbh in Kālsī in the north and in Dhaulī and Jaugaḍa in the east. The idiosyncratic nature of these changes lies in the development of a stop from m or v, where the more usual changes would be loss or assimilation of m after a stop and of v after a stop or a sibilant, while sm and hm would normally change to mh. This paper examines the manner assimilation of the “labial” clusters (that is, the clusters with m or v that normally do not incur assimilation of the adjacent consonant) in the Aśokan Rock Edicts. It discusses the conditions, the motivation, the course of the change of m/v to a labial stop, and the dialectal differences associated with this change.
Development of a Methodology for Model Testing of Utor Welded Joints of a Vertical Cylindrical Tank
Authors:   OOO NII Transneft, Neganov D.A. , Zorin A.E. ,   OOO NII Transneft, Kolesnikov O.I. ,   OOO NII Transneft, Nesterov G.V. ,   OOO NII Transneft, Yushin A.A. ,   OOO NII Transneft
Published: December 2021

The methodology of laboratory modeling of the loading of utor welded joint of the tank is presented. The methodology is based on testing of the special design sample. It allows under uniaxial tension on the typical servo-hydraulic machines to reproduce in the zone of a utor welded joint the combined action of bending and shear forces, similar to that which occurs during the operation of a vertical cylindrical tank. To assess the distribution of the stress-strain state in the proposed design of the sample under its loading, the finite element modeling was performed in the ANSYS software package. It showed the fundamental correspondence of the stress distribution in the zone of the utor node in the sample and in the real tank. The experimental studies consisted in carrying out tests for the durability of a series of 16 samples loaded with the maximum force in the cycle, causing the calculated stresses in the zone of the welded utor node in the range of 100–200 % from the maximum permissible ones. The obtained results showed that the maximum loaded zone, where the destruction of the samples occurred, is the near-seam zone of the utor welded joint on the inside of the tank. This corresponds to the statistics of the real tank failures. It is established that the developed methodology ensures the possibility of carrying out correct resource tests of the tank utor welded joints. It is also possible to vary the stress-strain state scheme within a wide range in the area of the utor welded joint by changing the design parameters of the test sample. In compliance with the regulated welding technologies and the absence of unacceptable defects in the welded joint, the utor node has a high resource, which significantly exceeding 50 years of the tank operation.
To the Problem of Minimizing the Volume of Mobile Dust in the Development of Pits
Authors:   North Caucasus State Technological University, Golik V.I. , Gashimova Z.A. ,   North Caucasus State Technological University, Liskova M.Yu. ,   Perm National Research Polytechnic University, Kongar-Syuryun Ch.B. ,   Technical University Georg Agricola
Published: December 2021

Technogenic factors that have a negative effect on the environment and humans are analyzed. The integrated effect of negative impact on the environment aggravated by the number of factors is revealed. These factors include the following: gorges, river valleys and mountain landscapes. From the previously conducted studies it was concluded that the main source of negative effects on living organisms is the mineralized dust. The actual task of the study is determined, which consists in detailing the mechanisms and methods of the mineralized dust formation for improving the methods of minimizing its formation. Using the example of an open pit development of a dolomite deposit the relationship is established between the indicators of atmospheric dusting by the products of rock technological crushing and grinding. Dependence is established related to the dust emission intensity on the air flow velocity and dust concentration. It is proved that all the dust-like products formed as the result of mining and processing of the mineral raw materials have dimensions that allow them to move with the help of air masses. The results of the experiments on solving the problem of reducing dust by minimizing the output of mobile dust classes are presented (studies of the granulometric composition of rocks of various types with differentiation by type of the dust source, the mechanism of pollution using trapping screens and the development of directions for minimizing dusting of the atmosphere of the quarry and the surrounding area). The measures to reduce dust formation are proposed. The model for assessing the potential of environmental pollution by gas and dust products is developed. The proposed measures and the developed model will allow to minimize the effect of mining production on the environment of the region and the health of the workers of the mining enterprise and the residents of the region. The results obtained may be in demand when improving existing and developing new methods for improving occupational safety in the mining industry.
Problems of Recording the State of Lightning Protection Systems and Protection from Static Electricity when Assessing the Fire Risk Magnitude at Production Facilities
Authors:   Academy of GPS EMERCOM of Russia, Markov A.G. , Kharlamenkov A.S. ,   Academy of GPS EMERCOM of Russia
Published: December 2021

In paragraph 10 of Chapter 2 of the Methodology for determining the calculated values of fire risk at the production facilities, the list of the most likely events that may be the causes of fire-hazardous situations is presented. This list contains the phrase «the appearance of ignition sources in the places of formation of combustible gas-air mixtures». There are no more specific mentions about the probability of a fire from static electricity discharges and lightning strikes, as well as any other sources. This situation, at first glance, does not pose any problem, since it is assumed that the specialist performing the calculation will have to consider the likelihood of ignition sources appearing in places of the formation of combustible gas-air mixtures, which, obviously, will include both a lightning strike and its secondary manifestations, as well as a discharge of static electricity. However, lightning protection is not a part of the technological process of a production facility, but only ensures its safety. Also, lightning protection may not provide protection for an object with an explosive and fire hazardous technological process (for example, it does not correspond in parameters) or be absent altogether, which in practice will not in any way affect the procedure for calculating fire risk according to the specified methodology, in which the presence (absence) of a lightning protection system is not considered in any way. At the same time, fire statistics indicate the large number of fires from lightning and from discharges of static electricity. The 1st place in the world among large countries in the number of people killed in fires is an important indicator testifying the need for systemic changes in the approach to ensuring fire safety in Russia. Nowadays, it is often easier for an owner or tenant to obtain a document on the safety of an object than to ensure this safety in real practice. This cannot be achieved only by control — it is required to motivate all the participants for safety (for example, through compulsory insurance), which would become profitable to ensure fire safety.
Proses Awal dalam Penghasilan Komposisi “Kelampan Bajang” dengan Mengadaptasi Struktur Musik Pop Suku Sasak Lombok
Authors: Sapriadi Sapriadi , Mazlan Chamil Arkhasa Nikko , Ramli Affendi
Published: December 2021

The musical composition, entitled Kelampan Bajang, is the main narrative of the composition theme about the story of the journey of the young Sasak tribe which is semiotically depicted in three different times, namely morning, afternoon, and night. This composition emerged due to several phenomena found, including 1) there are no complete Sasak songs in transcripts and arrangements, 2) many musicians arrange songs in Sasak but often cause controversy in lyrics and music, 3) many talented young musicians cover repeating noname songs on several songs performed by many pop singers in Lombok, 4) many sasak pop songs but most of them do not represent local culture in terms of lyrics and music. This paper aims to explain the initial process of musical composition with the theme Kelampan Bajang including 1) Bekuliq, 2) Bekayaq, 3) Matur Tampiasih, 4) Sepi Alam Dese, 5) Lalo Midang, and 6) Merariq. All song lyrics are written in the Sasak language. The research uses the autoethnographic method to discuss the problem, how the idea of ​​creating musical compositions can be aligned with the diversity of musical culture in Lombok. After conducting an in-depth study, the author concluded that in order to create a compositional work that could represent regional culture and not cause controversy among the public, namely 1) the author inserted an exploration of the pelog and slendro melodic motifs in the vocal melody section as regional identity, 2) the author inserted the motif the melodies of pelog and slendro in the musical arrangement section, and 3) the author uses good and correct local language lyrics that are in accordance with the regional culture in Lombok.
Remote results of generalized periodontitis treatment in patients with osteoarthrіtis
Authors: M. S. Zaliznyak
Published: December 2021

The article presents long-term results of treatment of generalized periodontitis in patients with osteoarthritis using chloride-calcium-sodium mineral water of Novozbruchansk deposit with high salinity and of system administration of osteotropic drugs "Сalcemin" and "Aquadetrim".
State of the blood lipid profile in acute period of recurrent ischemic stroke
Authors: A. V. Kulmatytskyi
Published: December 2021

In patients with both primary and recurrent ischemic stroke in its acute period the combined dyslipidemia with no probable differences was found which declared itself in an increase of general cholesterol, cholesterol of low den sity lipoproteins, cholesterol of extra low density lipoproteins, triglycerides and atherogenic factor at low concentrations of cholesterol of high density lipoproteins. There were no significant differences found between the indexes of lipidogram of different levels of severity in the primary ischemic stroke group as well as in the group of recurrent ischemic stroke, and no significant differences betweentheir same name levels of severity were found either.
Effect of methanol on the ultrastructure of chorioretinal complex of rats’ eyes in the early stages of the experiment
Authors: N. І. Molchanyuk
Published: December 2021

Electron-microscopic structure of the chorioretinal complex were investigated (СRC), [choriocapillaries (HC) – retinal pigment epithelium (RPE) – photoreceptor cells (FC)], of white rats in a period of 40 min. to 3 days after a single intraperitoneal dose of methanol 0.75 g/kg body weight. It has been established that RPE cells are the most responsiveto the dose of the methanol used. In the dynamics (from 40 min. up to 3 days), they grew destructive changes of mitochondria and elements of smooth endoplasmic reticulum, the smoothness of the basal folds and patchy destruction of the apical microvilli. The changes in CC and FC were similar. By the end of the observation period, these phenomena in the CRC structure spread to a larger number of cells. At the same time, during the whole period of the study, and, in particular, after a day, some signs of recovery of compensatory nature were obvious. Attention is drawn to pronounced reaction of mitochondria, which are energy forming structures of a cell.