bluuebunny/crossref_metadata_2025_split huggingface dataset:
Penerapan Metode Fuzzy Sugeno Sebagai Sistem Navigasi Robot Menggunakan Mikrokontroler Arduino dan Sensor Ultrasonik
Authors: Husnawati Husnawati 
Published: July 2020

<p align="center"><strong><em>Abstract <br /></em></strong></p><p><em>In the era of industrial technology and automation, robots are widely used as a tool that can ease human work, so the robot which has a good control system is needed so that the work done by the robot can be optimized. The development of control systems in robots is currently quite rapid along with increasingly diverse human needs. Several methods are applied to the robot control system automatically. Fuzzy logic is a method that is most used in navigating robot motion. In this study will be applied Sugeno type fuzzy logic method as a robot navigation system which embedded in Arduino Uno microcontroller and ultrasonic sensor is used as distance input value, in each robot path is given 30 cm obstacle so that the PWM value generated by the robot can be measured. The results obtained in this study is the Sugeno fuzzy logic method which embedded in the Arduino Uno microcontroller can control the motion of the robot and avoid the obstacles in the environment well.</em></p><p><strong><em>Keywords</em></strong><em>:</em><em> Control System, Navigation, Fuzzy Logic, Arduino, Ultrasonic Sensor</em></p><p align="center"><em> </em></p><p align="center"><strong><em>Abstrak <br /></em></strong></p><p><em>Pada era teknologi dan otomasi industri saat ini banyak digunakan robot sebagai alat bantu yang dapat meringankan pekerjaan manusia, sehingga dibutuhkan robot yang memiliki sistem pengendalian yang baik agar pekerjaan yang dilakukan oleh robot tersebut dapat lebih optimal. Perkembangan sistem pengendalian pada robot saat ini cukup pesat seiring dengan kebutuhan manusia yang semakin beragam. Beberapa metode banyak diterapkan pada sistem pengendalian robot secara otomatis. Logika fuzzy merupakan metode yang banyak digunakan dalam navigasi gerak robot. Sehingga pada penelitian ini akan diterapkan metode logika fuzzy dengan tipe Sugeno sebagai sistem navigasi robot yang ditanamkan pada mikrokontroler Arduino uno dan digunakan sensor ultrasonik sebagai nilai inputan jarak, pada masing – masing lintasan robot diberikan halangan sejauh 30 cm sehingga nilai pwm yang dihasilkan oleh robot dapat terukur. Hasil yang diperoleh pada penelitian ini adalah metode logika fuzzy Sugeno yang ditanamkan pada mikrokontroler Arduino uno dapat mengendalikan gerak robot dan menghindari halangan yang berada di sekitar lingkungan dengan baik.</em></p><strong><em>Kata kunci </em></strong><em>: Sistem Kendali, Navigasi, Logika Fuzzy, Arduino, Sensor Ultrasonik.</em>
Keamanan Pesan Rahasia Menggunakan Steganografi DCT (Discrete Cosine Transform) pada Citra JPEG
Authors: Zulfikar Dian Hafidh 
Published: July 2020

<p class="SammaryHeader" align="center"><strong><em>Abstract</em></strong><em></em></p><p><em> </em>The least significant-bit (LSB) based techniques are very popular for steganography in spatial domain. The simplest LSB technique simply replaces the LSB in the cover image with the bits from secret information. Further advanced techniques use some criteria to identify the pixels in which LSB(s) can be replaced with the bits of secret information. In Discrete Cosine Transform (DCT) based technique insertion of secret information in carrier depends on the DCT coefficients. Any DCT coefficient value above proper threshold is a potential place for insertion of secret information.</p><p class="Abstrak"><strong> </strong><strong>Keywords :</strong> Discrete Cosine Transform (DCT), steganography, secret message</p><p><strong><em> </em><em>Abstra</em><em>k</em></strong></p><p>Pada steganografi domain spasial, teknik least significant-bit (LSB) merupakan teknik yang paling banyak digunakan pada steganografi. Teknik yang sederhana yang hanya mengubah nilai LSB pada cover image dengan nilai bit pesan rahasia, atau dengan teknik yang lebih baik lagi yaitu dengan menentukan bit-bit LSB mana yang akan dilakukan pergantian nilai bit. Lain halnya dengan metode Discrete Cosine Transform (DCT), teknik steganografi ini akan menyembunyikan informasi rahasia tergantung dari nilai Koefisien DCT.</p><p class="Abstrak"> </p><p class="Abstrak"><strong>Kata Kunci :</strong> Steganografi, DCT, Citra, JPEG, Pesan Rahasia</p>
Viteite, Pd5InAs, a new mineral from the Monchetundra layered intrusion, Kola Peninsula, Russia
Authors: Vymazalová A. , Laufek F. , Grokhovskaya T.L. , Stanley C.J. 
Published: July 2020

ABSTRACT
Viteite, Pd5InAs, is a new mineral discovered in the Monchetundra layered intrusion, Kola Peninsula, Russia. It forms euhedral grains about 0.5 to 10 μm in size intergrown with irarsite (IrAsS), hollingworthite (RhAsS), zvyagintsevite (Pd3Pb), Au-Ag alloys, and tulameenite (Pt2CuFe), that are replaced by Pt-Pd-Fe-Cu alloys and Pt-Pd-Fe-Cu oxygenated compounds, all of which are embedded in chalcocite, goethite, and covellite. Viteite is brittle and has a metallic luster. In plane-polarized light, viteite is bright pinkish-white. The mineral is weakly anisotropic with rotation tints blue to pinkish brown; it exhibits no internal reflections. Reflectance values of viteite in air (R1, R2 in %) are 55.7, 54.0 at 470 nm; 59.2, 58.4 at 546 nm; 60.0, 60.4 at 589 nm; and 60.0, 62.6 at 650 nm. Eight electron-microprobe analyses of viteite give an average composition of Pd 71.90, Pt 1.60, Fe 0.98, Cu 0.59, In 11.48, Hg 1.42, Pb 0.40, As 10.70, total 99.07 wt.%, corresponding to the empirical formula (Pd4.92Pt0.06)Σ4.98(In0.73Fe0.12Cu0.07Hg0.05Pb0.01)Σ0.98As1.04 based on 7 atoms; the average of 12 analyses of its synthetic analogue is: Pd 73.72, In 16.37, As 9.80, total 99.90 wt.%, corresponding to Pd5.02In1.03As0.95. The density, calculated on the basis of the empirical formula, is 10.78 g/cm3. The mineral is tetragonal, space group P4/mmm, with a 3.98600(3), c 6.98385(8) Å, V 110.961(2) Å3, and Z = 1. The crystal structure of synthetic Pd5InAs was solved and refined using powder X-ray-diffraction data from synthetic Pd5InAs. Viteite crystallizes with the Pd5TlAs structure type. The strongest lines in the X-ray powder diffraction pattern of synthetic Pd5InAs [d in Å (I) (hkl)] are: 2.3281(45)(003), 2.1932(100)(112), 1.9928(33)(020), 1.2515(17)(115), 1.1857(25)(132). The mineral is named for the Vite river, which flows near the Monchetundra intrusion.
Pattern of Different Types of Fingerprints amongst the Community- an Observational Cross Sectional Study
Authors: Ms. Shivangi U. Singh  , Dr. Sandeep S. Kadu  
Published: July 2020

Background: No two people have exactly the same fingerprints. Even identical twins, with identical DNA, have different fingerprints. This uniqueness allows fingerprints to be used in all sort of ways, including background checks, biometric security, mass disaster identification, and of course, in criminal situations. This scientific examination of fingerprints for identification purposes is known as dactylography. Aim: To prove the uniqueness and study various pattern of fingerprint in an individual. Objectives: 1) To study pattern of fingerprints for identification of an individual, 2) To study different types of fingerprints and keep statistical data of loops, whorls, arches and compound/composite in a group of individual, and 3) To study different methods of fingerprinting in an individual. Methodology: The study was conducted among individuals under the age group of 25-40 years, including 50 males and 50 females. The study was conducted based on Henry Galton method. The fingerprints were taken by means of an ink pad on a blank sheet; a magnifying glass was used for clarity of the finger impressions. Result: There are 4 types of fingerprints namely loops-52.16%, whorls-34.99%, composite-10.04% and arches-2.81%. Conclusion: On this basis uniqueness of fingerprints was proved. Fingerprints are considered as secondary evidence in the court of law, even though it is used as a primary and the most basic source of identification of an individual. Also according to our study the percentage of types of fingerprints varied.
Pengaruh Pengelolaan Kelas terhadap Motivasi Belajar di Madrasah Ibtidaiyah Nurul Jihad Kecamatan Tembilahan Hulu
Authors: Asisah Nur , Nasrullah Nasrullah 
Published: July 2020

Pengelolaan kelas adalah proses atau upaya yang dilakukan oleh seorang guru secara sistematis untuk menciptakan dan mewujudkan kondisi kelas yang dinamis dan kondusif dalam rangka menciptakan pembelajaran yang efektif dan efisien, sedangkan motivasi belajar adalah dorongan dari dalam diri murid dan dari luar diri murid untuk mengalami perubahan perilaku dalam bentuk pengetahuan, sikap, nilai dan keterampilan. Penelitian ini bertujuan untuk mengetahui pengaruh pengelolaan kelas terhadap motivasi belajar siswa di MI Nurul Jihad Kecamatan Tembilahan Hulu. Populasi dalam penelitian ini adalah guru wali kelas pada kelas tinggi IV, V, VI dan siswa kelas tinggi di MI Nurul Jihad Kecamatan Tembilahan Hulu, dimana guru wali kelas pada kelas tnggi berjumlah 6 orang, dan siswa berjumlah 121 orang,untuk variabel X (pengelolaan kelas) peneliti tidak menggunakan sampel karena masih memungkinkan peneliti meneliti tiap populasi secara satu persatu. Sedangkan variabel Y (motivasi belajar siswa) menggunakan sampel sebanyak 24 siswa. Penelitian ini menggunakan 2 Variabel yaitu variabel bebas (pengelolaan kelas) dan variabel terikat (motivasi belajar siswa). Teknik pengumpulan data yang digunakan adalah observasi, angket, dan dokumentasi. Analisis yang digunakan adalah análisis uji t. Hasil penelitian menunjukkan bahwa persentase pengelolaan kelas yang dilakukan oleh 6 guru wali kelas adalah 86,54% dengan kategori sangat baik, sedangkan persentase motivasi belajar siswa 62,5 dengan kategori baik. Kemudian hasil analisis uji t menunjuk kan nilai thitung adalah 2,723 ≥ ttabel adalah 1,679. Kesimpulan dalam penelitian ini adalah terdapat pengaruh yang signifikan antara pengaruh pengelolaan kelas terhadap motivasi belajar siswa di MI Nurul Jihad Kecamatan Tembilahan Hulu Tahun 2015.
Histologic and Cost-Benefit Analysis of Laparoscopic Sleeve Gastrectomy Specimens Performed for Morbid Obesity
Authors: Nowak Klaudia , Di Palma Adam , Chieu Kenny , Quereshy Fayez , Jackson Timothy , Okrainec Allan , Serra Stefano , Chetty Runjan 
Published: July 2020

Context.—
Laparoscopic sleeve gastrectomy (LSG) has quickly become the bariatric surgical procedure of choice for patients with obesity who have failed medical management. Laparoscopic sleeve gastrectomy results in a gastric remnant that is routinely subject to pathologic examination.

Objective.—
To perform a histologic and cost-benefit analysis of gastric remnants post-LSG.

Design.—
All LSG cases performed at University Health Network, Toronto, Ontario, Canada, between 2010 and 2019 were reviewed. Specimens that underwent routine histopathologic assessment and ancillary immunohistochemical analysis were analyzed. Baseline patient characteristics and surgical outcomes were obtained from our internal database. The total cost of specimen gross preparation, examination, sampling, and producing and reporting a hematoxylin-eosin slide was calculated.

Results.—
A total of 572 patients underwent LSG during the study period and had their specimens examined histologically. A mean of 4.87 blocks generating 4 hematoxylin-eosin slides was produced. The most common histologic findings reported in LSG specimens ranged from no pathologic abnormalities identified together with proton pump inhibitor–related change. A minority of cases demonstrated clinically actionable histologic findings, of which Helicobacter pylori infection was the most common. The total cost for the complete pathologic analysis of these cases amounted to CaD $66 383.10 (US $47 080.21) with a mean of CaD $116.05 (US $82.40) per case. A total of CaD $62 622.75 (US $44 413.30) was spent on full examination of cases that had no further postoperative clinical impact.

Conclusions.—
There is a broad spectrum of pathologic findings in LSG specimens, ranging from clinically nonactionable to more clinically actionable. The vast majority of histologic findings had no clinical impact, with only a minority of cases being clinically significant. This study therefore recommends that LSG specimens be subject to gross pathologic examination in the vast majority of cases. However, sections should be submitted for microscopic analysis if grossly evident lesions are present and if there is a clinical/known history of clinically actionable findings.
Mounting a Regional Response to the COVID-19 Pandemic: Another Reason to “Keep” Your Lab
Authors: Paczos Tamera A. 
Published: July 2020

Context.—
Declining reimbursement shifts hospital laboratories from system assets to cost centers. This has resulted in increased outsourcing of laboratory services, which can jeopardize a hospital systems' ability to respond to a health care crisis.

Objectives.—
To demonstrate that investment in a core laboratory serving an academic medical center equipped a regional health system to respond to the Coronavirus disease 2019 (COVID-19) pandemic.

Design.—
COVID-19 diagnostic testing data were analyzed. Volumes were evaluated by result date (March 16, 2020–May 6, 2020), and the average of received-to-verified turnaround time was calculated and compared for in-house and send-out testing, and different in-house testing methodologies.

Results.—
Daily viral diagnostic testing capacity increased by greater than 3000% (from 21 tests per day to 658 tests per day). Total viral diagnostic testing reported by the core laboratory increased by 128 times during 22 days of test method validation and 826 times during the analysis period, while average turnaround time per day for send-out testing increased from 3.7 days to 21 days. Decreased overall average turnaround time was observed at the core laboratory (0.45 days) versus send-out testing (7.63 days) (P &lt; .001).

Conclusions.—
Investment in a core laboratory provided the health system with the necessary expertise and resources to mount a robust response to the pandemic. Local access to testing allowed rapid triage of patients and conservation of scarce personal protective equipment (PPE). In addition, the core laboratory was able to support regional health departments and several hospitals outside of the system.
Prevalence of Geohelminths in Garden Soil in Emohua Local Government Area in Nigeria
Authors: Amudatu Adedokun Ambali , Barine Gboeloh Lebari , Kingsley Elele 
Published: July 2020

Introduction: Geohelminths are parasites which perform part of their life cycle in the soil, where eggs are embryonated and then larvae become viable, being in both stages able to infect their hosts, depending on the species and can affect humans.
Aim: This study was aimed to determine the prevalence of geohelminths in garden soil in Emohua Local Government Area, Rivers State in Nigeria.
Methods: Soil samples from the cultivated area of Rumuakunde and Isiodu district were selected for the study. 164 soil samples were examined for a period of April to May 2019. Geohelminth concentration technique was carried out using zinc sulphate floatation technique and under light microscopy. Data analysis was carried out using descriptive statistics and Chi square (X2) test.
Results: The overall prevalence rate of geohelminths found was 20(12.2%) out of 164 soil samples examined from the selected farm lands. Isiodu Farm F had the highest prevalence of 60% (12/20) followed by Rumuakunde Farm B, C and E of prevalence 20% (4/20), 15% (3/20) and 5% (1/20) respectively. This distribution among the farm lands were found to be statistically significant (p - <0.05). Hookworm laevae 70% (14/20) and Strongyloides stercoralis 30% (6/20) were geohelminths identified. Other geohelminths were not implicated.
Conclusion: This result of this study has shown that, geohelminths are more prevalent in Isiodu farm lands. The risk of contracting infection is high in these farm locations despite its low prevalence. There is need for zero tolerance to soil contamination.
S6N2O15: ein stickstoffarmes Schwefelnitridoxid und das Anhydrid der Nitrido‐tris‐schwefelsäure
Authors: van Gerven David , Wickleder Mathias S. 
Published: July 2020

AbstractDie Reaktion von Hexachlorophosphazen, P3N3Cl6, mit SO3 führt zum neuen Schwefelnitridoxid S6N2O15. Die Verbindung weist einen außerordentlich niedrigen Stickstoffgehalt auf und besitzt eine bicyclische Käfigstruktur gemäß der Formulierung N{S(O)2O(O)2S}3N, bei der sich beide Stickstoffatome in trigonal‐planarer Koordination von Schwefelatomen befinden. Bezeichnenderweise kann das neue Nitridoxid auch als das Anhydrid der Nitrido‐tris‐schwefelsäure, N(SO3H)3, aufgefasst werden.
Probing the Design Rationale of a High‐Performing Faujasitic Zeotype Engineered to have Hierarchical Porosity and Moderated Acidity
Authors: Chapman Stephanie , Carravetta Marina , Miletto Ivana , Doherty Cara M. , Dixon Hannah , Taylor James D. , Gianotti Enrica , Yu Jihong , Raja Robert 
Published: July 2020

AbstractPorosity and acidity are influential properties in the rational design of solid‐acid catalysts. Probing the physicochemical characteristics of an acidic zeotype framework at the molecular level can provide valuable insights in understanding intrinsic reaction pathways, for affording structure–activity relationships. Herein, we employ a variety of probe‐based techniques (including positron annihilation lifetime spectroscopy (PALS), FTIR and solid‐state NMR spectroscopy) to demonstrate how a hierarchical design strategy for a faujasitic (FAU) zeotype (synthesized for the first time, via a soft‐templating approach, with high phase‐purity) can be used to simultaneously modify the porosity and modulate the acidity for an industrially significant catalytic process (Beckmann rearrangement). Detailed characterization of hierarchically porous (HP) SAPO‐37 reveals enhanced mass‐transport characteristics and moderated acidity, which leads to superior catalytic performance and increased resistance to deactivation by coking, compared to its microporous counterpart, further vindicating the interplay between porosity and moderated acidity.
Mechanistic Insights into C(sp2)−C(sp)N Reductive Elimination from Gold(III) Cyanide Complexes
Authors: Genoux Alexandre , González Jorge A. , Merino Estíbaliz , Nevado Cristina 
Published: July 2020

AbstractA new family of phosphine‐ligated dicyanoarylgold(III) complexes has been prepared and their reactivity towards reductive elimination has been studied in detail. Both, a highly positive entropy of activation and a primary 12/13C KIE suggest a late concerted transition state while Hammett analysis and DFT calculations indicate that the process is asynchronous. As a result, a distinct mechanism involving an asynchronous concerted reductive elimination for the overall C(sp2)−C(sp)N bond forming reaction is characterized herein, for the first time, complementing previous studies reported for C(sp3)−C(sp3), C(sp2)−C(sp2), and C(sp3)−C(sp2) bond formation processes taking place on gold(III) species.
Single‐Molecule 3D Orientation Imaging Reveals Nanoscale Compositional Heterogeneity in Lipid Membranes
Authors: Lu Jin , Mazidi Hesam , Ding Tianben , Zhang Oumeng , Lew Matthew D. 
Published: July 2020

AbstractIn soft matter, thermal energy causes molecules to continuously translate and rotate, even in crowded environments, thereby impacting the spatial organization and function of most molecular assemblies, such as lipid membranes. Directly measuring the orientation and spatial organization of large collections (>3000 molecules μm−2) of single molecules with nanoscale resolution remains elusive. In this paper, we utilize SMOLM, single‐molecule orientation localization microscopy, to directly measure the orientation spectra (3D orientation plus “wobble”) of lipophilic probes transiently bound to lipid membranes, revealing that Nile red's (NR) orientation spectra are extremely sensitive to membrane chemical composition. SMOLM images resolve nanodomains and enzyme‐induced compositional heterogeneity within membranes, where NR within liquid‐ordered vs. liquid‐disordered domains shows a ≈4° difference in polar angle and a ≈0.3π sr difference in wobble angle. As a new type of imaging spectroscopy, SMOLM exposes the organizational and functional dynamics of lipid‐lipid, lipid‐protein, and lipid‐dye interactions with single‐molecule, nanoscale resolution.
Axial Modification of Cobalt Complexes on Heterogeneous Surface with Enhanced Electron Transfer for Carbon Dioxide Reduction
Authors: Wang Jiong , Huang Xiang , Xi Shibo , Xu Hu , Wang Xin 
Published: July 2020

AbstractEfficient electron communication between molecular catalyst and support is critical for heterogeneous molecular electrocatalysis and yet it is often overlooked during the catalyst design. Taking CO2 electro‐reduction on tetraphenylporphyrin cobalt (PCo) immobilized onto graphene as an example, we demonstrate that adding a relay molecule improves the interfacial electron communication. While the directly immobilized PCo on graphene exhibits relatively poor electron communications, it is found that diphenyl sulfide serves as an axial ligand for PCo and it improves the redox activity of PCo on the graphene surface to facilitate the generation of [PCo].‐ active sites for CO2 reduction. Thus, the turnover frequencies of the immobilized Co complexes are increased. Systematic structural analysis indicates that the benzene rings of diphenyl sulfide exhibit strong face‐to‐face stacking with graphene, which is proposed as an efficient medium to facilitate the interfacial electron communication.
Construction of Flexible‐on‐Rigid Hybrid‐Phase Metal–Organic Frameworks for Controllable Multi‐Drug Delivery
Authors: Wang Xiao‐Gang , Xu Lei , Li Min‐Jie , Zhang Xian‐Zheng 
Published: July 2020

AbstractMulti‐component MOFs contain multiple sets of unique and hierarchical pores, with different functions for different applications, distributed in their inter‐linked domains. Herein, we report the construction of a class of precisely aligned flexible‐on‐rigid hybrid‐phase MOFs with a unique rods‐on‐octahedron morphology. We demonstrated that hybrid‐phase MOFs can be constructed based on two prerequisites: the partially matched topology at the interface of the two frameworks, and the structural flexibility of MOFs with acs topology, which can compensate for the differences in lattice parameters. Furthermore, we achieved domain selective loading of multiple guest molecules into the hybrid‐phase MOF, as observed by scanning transmission electron microscopy–energy‐dispersive X‐ray spectrometry elemental mapping. Most importantly, we successfully applied the constructed hybrid‐phase MOF to develop a dual‐drug delivery system with controllable loading ratio and release kinetics.