bluuebunny/crossref_metadata_2025_split huggingface dataset:
Implementasi Keamanan File Menggunakan Metode Kriptografi Base-64 dan Steganografi Least Significant Bit (LSB) Random 2-Bit Berbasis Web
Authors: Agnes Aryasanti  , Ratna Ujiandari  , Mardi Hardjianto  , Ratna Kusumawardani  
Published: August 2024

Keamanan dan kerahasiaan adalah dua aspek penting dari transmisi data dalam saluran komunikasi. Dalam pengiriman yang bersifat data rahasia, pengirim menginginkan data tersebut terkirim ke tujuan tanpa ada orang lain yang mengetahuinya. Salah satu cara agar data rahasia agar tidak dapat dibaca oleh orang yang tidak berwenang adalah menggunakan steganografi. Teknik steganografi menyembunyikan data rahasia ke dalam suatu obyek (cover object). Media yang digunakan untuk cover object adalah citra digital dengan kedalaman warna 24-bit. Metode steganografi yang digunakan untuk mengamankan data adalah Least Significant Bit (LSB) Random yang dikombinasikan dengan m-Bit. Selain menggunakan steganografi, pengamanan data ini juga menggunakan algoritme enkripsi Base-64 yang sudah dimodifikasi. Penggunaan kombinasi metode kriptografi dan steganografi dapat meningkatkan keamanan data. Stego object yang dihasilkan jika dibandingkan dengan cover object hampir tidak ada bedanya, karena nilai PNSR lebih dari 30.
PERANCANGAN SISTEM PENDUKUNG KEPUTUSAN PEMILIHAN KAMPUNG KB MENGGUNAKAN METODE WEIGHTED PRODUCT PADA DPPKB KECAMATAN TUNGKAL JAYA
Authors: Pahlevi Muhammad Rezha , Septiyanti Reni 
Published: August 2024

Kampung KB adalah suatu wilayah setara Desa atau setingkat yang mempunyai karakteristik tertentu yang mana terdapat keterpaduan program keluarga berencana dan pembangunan serta kependudukan, hal ini dimaksudkan untuk menambah kualitas hidup masyarakat tingkat kalmpung. Selain mengentaskan kemiskinan, Kampung KB juga memberi solusi terkait ledakan populasi penduduk dan juga meningkatkan potensi masyarakat agar berperan nyata serta ikut andil dalam pembangunan. Pemilihan Kampung KB menjadi sangat penting untuk menentukan suatu wilayah agar dapat berkontribusi pada program pemerintah, namun proses pemilihan yang dilakukan masih menggunakan metode pemilihan manual yang memungkinkan terjadinya human error dan akurasi pemilihan yang tidak maksimal. Dalam penelitian ini hasil yang diharapkan berupa rancangan sistem pendukung keputusan pemilihan kampung KB dengan menggunakan metode weighted product pada dinas pengendalian penduduk dan keluarga berencana (DPPKB) Kecamatan Tungkal Jaya.
Implementasi Algoritme Kriptografi Advanced Encryption Standard (AES-128) untuk Pengamanan Data Berbasis Web pada McDonald’s Cabang T.B. Simatupang
Authors: Alvian Winata Arif , Syafrullah Mohammad , Irawan Irawan 
Published: August 2024

Abstrak - Keamanan data atau informasi sangat penting saat menggunakan jaringan internet. Penyadapan data atau informasi dalam konteks ini bisa sangat merugikan. Keamanan informasi menjadi prioritas utama dalam era digital, di mana pertukaran informasi terjadi secara masif dan cepat. Penelitian ini menggunakan data pelanggan dan beberapa dokumen lainnya dari McDonald’s TB Simatupang. Saat ini, menjaga keamanan pertukaran informasi menjadi sangat penting. Penelitian ini mengimplementasikan algoritme enkripsi AES-128 menggunakan metode waterfall untuk mengenkripsi dan mendekripsi data dalam format dokumen Microsoft office dan pdf. Algoritme Advanced Encryption Standard (AES) digunakan sebab menawarkan tingkat keamanan yang tinggi. Penelitian ini bertujuan untuk mengintegrasikan AES-128 di McDonald’s TB Simatupang sebagai solusi keamanan data sensitif dan mencapai standar keamanan yang optimal. Penerapapan penggunaan algoritma ini adalah pilihan yang tepat untuk mengamankan data sensitif di McDonald’s TB Simatupang. Hasil penelitian diuji dengan teknik pengujian black box dan dilaksanakan sesuai rencana.
Kata Kunci - Makanan Cepat saji, Kriptografi, Advanced Encryption Standard (AES-128), Plaintext, Chipertext.
Implementasi Web Service Restful API dengan Autentikasi Personal Access Tokens dan Algoritma AES 256
Authors: Fatchur Shofyan  , Rizky Tahara Shita  
Published: August 2024

Dalam era kemajuan teknologi informasi saat ini, pertukaran informasi yang akurat dan tepat dari satu pihak ke pihak lain dapat dilakukan dengan cepat dan efisien. Namun dengan semakin mudahnya dalam proses pertukaran data disisi lai juga meningkat pula risiko kejahatan didunia maya, seperti pembobolan sistem, pencurian data dan manipulasi data oleh pihak yang tidak bertanggung jawab untuk mendapatkan keuntungan pribadi, serta berdampak kerugian terhadap perusahaan baik secara finansial ataupun bukan finansial. Salah satu solusi yang efektif adalah dengan menerapkan metode autentikasi Personal Access Tokens yang dikombinasikan dengan algoritma AES-256 untuk enkripsi dan dekripsi data dalam proses transaksi, baik dari sisi pengguna maupun dari sisi sistem. Hal ini merupakan salah satu solusi yang efektif untuk menjaga keamanan sebuah sistem. Keamanan ini dapat diuji dengan berbagai cara seperti mencoba untuk melakukan encription ataupun decription dengan menggunakan kata kunci secara acak yang di mana hasil yang diberikan oleh sistem akan selalu salah atau gagal dan juga mencoba menggunakan Personal Access Tokens secara acak juga untuk menguji ketahanan sistem yang di mana sistem akan menginformasikan bahwa user tidak memiliki hak untuk mengakses data pada sistem. Hasil Pengujian aplikasi keamanan ini menunjukkan keberhasilan dalam peningkatan keamanan aplikasi dengan penerapan algoritma AES 256 pada layanan web service yang diakses oleh aplikasi karyawan PT. 3 Consulting Services dengan tetap menjaga keaslian dan keamanan data yang disimpan pada database.
Metabolites profiling of Sapota fruit pulp via a multiplex approach of gas and ultra performance liquid chromatography/mass spectroscopy in relation to its lipase inhibition effect
Authors: Farag Mohamed A. , Ragab Nermin Ahmed , Maamoun Maii Abdelnaby Ismail 
Published: August 2024

Background
Sapota, Manilkara zapota L., are tasty, juicy, and nutrient-rich fruits, and likewise used for several medicinal uses.

Methods
The current study represents an integrated metabolites profiling of sapota fruits pulp via GC/MS and UPLC/MS, alongside assessment of antioxidant capacity, pancreatic lipase (PL), and α-glucosidase enzymes inhibitory effects.

Results
GC/MS analysis of silylated primary polar metabolites led to the identification of 68 compounds belonging to sugars (74%), sugar acids (18.27%), and sugar alcohols (7%) mediating the fruit sweetness. Headspace SPME-GC/MS analysis led to the detection of 17 volatile compounds belonging to nitrogenous compounds (72%), ethers (7.8%), terpenes (7.6%), and aldehydes (5.8%). Non-polar metabolites profiling by HR-UPLC/MS/MS-based Global Natural Products Social (GNPS) molecular networking led to the assignment of 31 peaks, with several novel sphingolipids and fatty acyl amides reported for the first time. Total phenolic content was estimated at 6.79 ± 0.12 mg gallic acid equivalent/gram extract (GAE/g extract), but no flavonoids were detected. The antioxidant capacities of fruit were at 1.62 ± 0.2, 1.49 ± 0.11, and 3.58 ± 0.14 mg Trolox equivalent/gram extract (TE/g extract) via DPPH, ABTS, and FRAP assays, respectively. In vitro enzyme inhibition assays revealed a considerable pancreatic lipase inhibition effect (IC50 = 2.2 ± 0.25 mg/mL), whereas no inhibitory effect towards α-glucosidase enzyme was detected. This study provides better insight into sapota fruit’s flavor, nutritional, and secondary metabolites composition mediating for its sensory and health attributes.
The sicariid spiders in the state of Bahia, Brazil (Arachnida: Araneae)
Authors: Andrade-de-Sá Júlia , Brazil Tania Kobler , Lira-da-Silva Rejâne Maria , Brescovit Antonio Domingos 
Published: August 2024

Background
Sicariidae is a small family of cryptic and recluse spiders, with 178 species grouped into three genera: Hexophtalma, Loxosceles and Sicarius. Only the last two occur in Brazil, where 29 species are recorded, with a greater number of records in the Southeast and South regions. To date, there is no regionalized study of the distribution of these spiders in the Northeast of Brazil. We presented more than four decades of data on the distribution of sicariid spiders in the state of Bahia. Our research aimed to identify and evaluate the distribution of sicariid species in this region, characterizing them in their biomes and phytophysiognomies.

Methods
Data covers a period from 1983 to 2024, obtained from articles describing species recorded in Bahia and from three scientific collections from Brazilian institutions: Universidade Federal da Bahia (MHNBA); Instituto Butantan (IBSP); Universidade Federal de Minas Gerais (UFMG). Maps were produced using the QGIS 3.34.1 software, based on geographic coordinates obtained from the original literature, when provided. Species without information on geographic coordinates were georeferenced using the SpeciesLink (geoLoc tool) for the municipalities. Biomes were consulted on the georeference Brazilian institute website and the phytophysiognomies were ignored when not specified in the data of collections or original literature.

Results
We confirmed 14 species of sicariid spiders in the state of Bahia, eight from the genus Loxosceles (i) and six from Sicarius. The species were recorded in 48 municipalities, located mainly in the Caatinga biome. We recorded a distribution expansion of seven species: Loxosceles amazonica, L. chapadensis, L. karstica, L. similis, Sicarius cariri, S. ornatus and S. tropicus. There is a difference in species composition in the two regions separated by the São Francisco River, an important geographic barrier especially for small invertebrates. More than 75% of the species were registered in the east side and about 20% exclusively in the west side: L. boqueirao, L. cardosoi, L. carinhanha. This suggests the need for future studies to evaluate additional variables that determine community structure, especially considering their low vagility and reclusive behavior. Although Sicarius are found almost exclusively in the Caatinga, there are isolated records from Restinga and dry forest enclaves in the Cerrado domain and Atlantic Forest areas. This reinforces the possibility of them being able to adapt to slightly wetter environments erase colonize and survive in seasonally dry rainforest areas. Unlike Sicarius (i), Loxosceles (i) occupy a wide variety of habitats in natural, urban and domiciliary situations. Many of the records here such as for Loxosceles boqueirao, L. cardosoi, L. carinhanha, L. chapadensis, L. karstica and L. troglobia were obtained at caves or nearby areas, which appear to be attractive habitats for these nocturnal spiders.
Candidates’ Items Responses Analysis and Teachers’ Assessment Practices in Secondary Schools in Zanzibar
Authors: Kihiyo Benedict M. , Mpeshe Saul C. , Mhando Salvatory F. 
Published: August 2024

The study aimed to assess the influence of Candidates' Item Responses Analysis (CIRA) on teachers’ assessment practices in secondary schools in Zanzibar. It addressed two research question: in what ways do candidates item responses analysis influences the assessment practices used by secondary school teacher? And what are the common assessment practices applied by secondary school teachers? Guided by Item Responses Theory, which emphasizes the design, development, and scoring of assessments, the study employed a descriptive cross-sectional survey design in Northern ‘A’ and Northern ‘B’ districts in Zanzibar. The study used 80 respondents from six lower performance and higher performance secondary schools. The respondents were selected through non-probability sampling, whereas convenience sampling was used to gather data from respondents who are readily available. Data were collected through questionnaires and observations and analyzed descriptively. The finding shows that CIRA influenced teachers in preparing students for national exams with the higher mean score of (M=3.47) and evaluating instructions effectiveness with a mean score of (M=3.31), but had less influences on assessment methods, such as portfolios and peer assessments with a mean score of (M=3.00).The study concluded that enhancing teachers' knowledge of CIRA could improve assessment practices, particularly in preparing high-quality test items and diversifying assessment methods , because teachers had limited knowledge and resources to apply modern assessment practices such as portfolios and peer assessment something which led poor performance of the students in the final examination.
A Comparative Study of Phytoremediation of Cd and Cr in Soil Using Silica-infused Brassica juncea L. and Vigna radiata
Authors: S. Bhuvaneshwari , S. Akila , M. Shankar , P. Kalpana , M. Sinduja , M. P. Sugumaran , G. Porkodi , P. Sakthiselvan 
Published: August 2024

Heavy metals are added to the soil as a result of industrialization. Removing this heavy metal from the soil is a difficult procedure, and phytoremediation is an essential and effective method for remediation. Heavy metals present in the study area included are Cd and Cr. Two plants namely Brassica juncea L. and Vigna radiata were successfully grown on the soil contaminated with Cd and Cr using the Silica powder obtained from coconut husk and paddy straw is also found to have heavy metals absorption properties without decreasing the nutrient status of the soil which was observed from the study. The remediation capacity is measured using Atomic Adsorption Spectroscopy. Brassica juncea L remediates the heavy metals Cr (600≤ 560≤ 450 ppm) with higher efficiency while Vigna radiate remediates Cd with higher efficiency (450 ≤ 400 ≤ 380 ppm) respectively. The accumulation rate of these heavy metals was observed in the root and shoot growth as the metal prove to be the hyper accumulators. This paper investigated the uptake of heavy metals from roots to shoots, as well as their bioconcentration and the remediation efficiency of the p heavy metals by hyper accumulators.
With the increase in Industrialization and urbanization, the pollution by heavy metals such as arsenic, cadmium, chromium, etc accumulates in water and soil rapidly. As the heavy metals are non-biodegradable and toxic, they accumulate in the environment causing devastation to the living organisms thereby. Few heavy metals have got carcinogenic and mutagenic properties at lower concentrations. Phytoremediation is the process by which plants are used for remediating contaminated sites. Brassica juncea L. and Vigna radiata are found to have high heavy metals tolerating capacity. But plants that uptake heavy metals are slow growing and produce very little biomass and they uptake very little heavy metals in a short span. Silica obtained from coconut husk and paddy straw is also found to have heavy metals absorption properties. When silica is fused along with the Phyto remediating plant, the efficiency of the process increases. Silica powder is used in soil, while silica gel is made to float in hydroponics. The remediation capacity is measured using Atomic Adsorption Spectroscopy.
Interpreting climate‐modulated processes of terrace development along the Colorado Front Range using a landscape evolution model
Authors: Langston Abigail L. , Tucker Gregory E. , Anderson Robert S. 
Published: September 2015

AbstractFlights of terraces that flank range fronts throughout the Rocky Mountains record episodic stream incision over the past 1.5 Ma. Studies dating terraces in the Denver Basin along the Colorado Front Range suggest that these high surfaces were formed during glacial intervals and were rapidly incised and abandoned during interglacials. Modulation of sediment supply or transport capacity associated with climate change related to glacial‐interglacial cycles have been suggested as possible drivers for the repeated aggradation and abandonment of these high surfaces. Potential mechanisms for increasing sediment supply and transport in rivers include variations over time in sediment flux from intermittently glaciated major valleys, the efficiency of hillslope sediment transport, and the magnitude and timing of rainfall intensity and stream flow. In this study, we use a landscape evolution model to determine whether any of these processes, in isolation or in combination, is sufficient to explain the observed rates and patterns of terrace formation and abandonment along the Colorado piedmont. Cycles of channel aggradation and incision are apparent in the models when either mean rainfall intensity is varied or a glacial source of sediment is added. The models suggest that in the absence of a large addition of sediment to the streams, changes in stream power are necessary to allow channel aggradation and the planation of bedrock surfaces, and increased sediment flux from hillslopes is necessary to match observations of increased denudation rates that coincide with the deposition of terrace‐capping gravels.
Seismic reflection imaging of mixing processes in Fram Strait
Authors: Sarkar Sudipta , Sheen Katy L. , Klaeschen Dirk , Brearley J. Alexander , Minshull Timothy A. , Berndt Christian , Hobbs Richard W. , Naveira Garabato Alberto C. 
Published: September 2015

AbstractThe West Spitsbergen Current, which flows northward along the western Svalbard continental slope, transports warm and saline Atlantic water (AW) into the Arctic Ocean. A combined analysis of high‐resolution seismic images and hydrographic sections across this current has uncovered the oceanographic processes involved in horizontal and vertical mixing of AW. At the shelf break, where a strong horizontal temperature gradient exists east of the warmest AW, isopycnal interleaving of warm AW and surrounding colder waters is observed. Strong seismic reflections characterize these interleaving features, with a negative polarity reflection arising from an interface of warm water overlying colder water. A seismic‐derived sound speed image reveals the extent and lateral continuity of such interleaving layers. There is evidence of obliquely aligned internal waves emanating from the slope at 450–500 m. They follow the predicted trajectory of internal S2 tidal waves and can promote vertical mixing between Atlantic and Arctic‐origin waters.
Biodiversity and rarity distributions of native freshwater fish in an agricultural landscape: the importance of β diversity between and within water‐body types
Authors: Ishiyama Nobuo , Sueyoshi Masanao , Watanabe Nozomi , Nakamura Futoshi 
Published: September 2015

Abstract

Farmland expansion is a growing threat to aquatic biodiversity. Identifying conservation priority areas in agricultural landscapes is a key issue in freshwater ecology and information on the spatial variability of aquatic biodiversity is vital for prioritization. This study examined patterns of farmland fish assemblages across various water‐body types in northern Japan to develop an effective management plan for freshwater fishes.
Water bodies were classified into five types: small lowland streams, small upland streams, large rivers, man‐made ditches, and wetland ponds, and native fishes were collected from each type. The contribution of fish diversity between water‐body types (β2) to the regional fish diversity (γ) was investigated through additive diversity partitioning. Within each water‐body type, the contributions of between‐site diversity (β1) and within‐site diversity (α1) were also examined. The assemblage composition, species richness, and rarity were compared among the water‐body types.
The assemblage composition differed significantly among most of the water‐body types, which indicated that the landscape classification was appropriate for representing spatial variations in fish diversity. Additive diversity partitioning revealed that the contributions of β1 and β2 to γ fish diversity were relatively high at 38.2% and 37.3%, respectively, followed by a 24.5% contribution of α1 diversity. This finding demonstrates that the best strategy for conserving regional farmland fish diversity is to preferentially select areas containing various water‐body types as a conservation unit.
Among the water‐body types, ditches and streams exhibited the higher contribution ratio for β1 diversity, whereas the contribution of β1 diversity was lower in wetland ponds. The differences in the contribution of β1 diversity might be attributed to human‐induced factors, such as habitat fragmentation or shrinking. These results emphasize that further studies are needed to clarify the factors influencing the β1 diversity of farmland fish to develop better management strategies for each water‐body type.
Copyright © 2015 John Wiley & Sons, Ltd.
ChemInform Abstract: Crystal Structure of Undecapotassium Bis[α‐hemipentahydrogen hexamolybdoplatinate(IV)] Dodecahydrate.
Authors: Joo Hea‐Chung , Park Ki‐Min , Lee Uk 
Published: September 2015

AbstractK11 [α‐Pt(μ3‐OH)2 (μ3‐OH0.5)Mo6 (μ3‐O)3 (μ2‐O)6O12] 2·12H2O (simplified formula K11 [H2.5PtMo6O24] 2·12H2O) is obtained from hydrothermal reaction of K2MoO4 and K2Pt(OH)6 at pH ≈6.0 as described in the literature.
ChemInform Abstract: YAlC: A Bonding Chameleon with Heteropolyacetylene Features.
Authors: Kotyrba Martin R. , Cuervo‐Reyes Eduardo , Nesper Reinhard 
Published: September 2015

AbstractYAlC single crystals are prepared from Y, Al, and perylene as carbon source in a Mg flux (Nb ampoules, 670 °C, 7 d; cooling to 570 °C at a rate of 2 K/h).
ChemInform Abstract: Insight into CaMgSi2O6:Eu2+,Mn2+,Dy 3+ Nanoprobes: Influence of Chemical Composition and Crystallinity on Persistent Red Luminescence.
Authors: Rosticher Celine , Viana Bruno , Laurent Guillaume , Le Griel Patrick , Chaneac Corinne 
Published: September 2015

AbstractCa1‐xMg1+xSi2O6.:Eu(0.5%),Mn (2.5%),Dy(1%) (x = 0‐0.7)‐core SiO2‐shell nanoparticles (50 nm) as well as a second series with x = 0.6 and a varying silica content of 2‐4 are prepared by a modified Stoeber sol‐gel process using an EtOH solution of Mg(NO3)2, CaCl2, Si(OEt)4, MnCl2, EuCl3, and Dy(NO3)3 to which a NH3 in EtOH/H2O solution is given under vigorous stirring (room temp., 24 h) followed by annealing in 5% H2/N2 for europium reduction (1050‐1150 °C, 10 h).
ChemInform Abstract: High‐Pressure Synthesis and Electronic Structure of a New Superconducting Strontium Germanide (SrGe3) Containing Ge2 Dumbbells.
Authors: Nishikawa Takuya , Fukuoka Hiroshi , Inumaru Kei 
Published: September 2015

AbstractThe title compound is synthesized from the elements at 13 GPa and 1100 °C and characterized by single crystal XRD, magnetic measurements, and DFT band structure calculations.
ChemInform Abstract: Synthesis and Characterization of Ba[CoSO]: Magnetic Complexity in the Presence of Chalcogen Ordering.
Authors: Valldor Martin , Roessler Ulrich K. , Prots Yurii , Kuo Chang‐Yang , Chiang Jen‐Che , Hu Zhiwei , Pi Tun‐Wen , Kniep Ruediger , Tjeng Liu Hao 
Published: September 2015

AbstractBa[CoSO] is prepared by the reaction of equimolar amounts of BaO, Co, and S (corundum crucible in evacuated silica tubes, 1.
ChemInform Abstract: Two New Crystals in LimCsnBm+nO2(m+n) (m + n: 5, 7; m < n) Series: Noncentrosymmetric Li5Cs2B7O14 and Centrosymmetric Li4CsB5O10.
Authors: Li Lin , Han Shujuan , Lei Binghua , Dong Xiaoyu , Wu Hongping , Zhou Zhongxiang , Yang Zhihua , Pan Shilie 
Published: September 2015

AbstractCrystals of Li5Cs2B7O14 (I) are prepared in a BaCO3—PbO flux from a mixture of Li2CO3, Cs2CO3, H3BO3, BaCO3, and PbO in the molar ratio of 7:3:20:1:3 (Pt crucible, 750 °C, 12 h).
ChemInform Abstract: Two Self‐Assembled Water Clusters Stabilized by Cu‐Containing Compounds Based on MoO42‐.
Authors: Kuang Ye , Yang Bing , Pan Jiali , Meng Xianggao , Xiao Fengping 
Published: September 2015

AbstractCompounds (III) and (IV) are characterized by single crystal XRD, FTIR, and UV/VIS spectroscopy.
ChemInform Abstract: Metal‐Free, Acid‐Catalyzed ortho‐Directed Synthesis of Anthranilic Acid Derivatives Using Carbodiimides.
Authors: Culf Adrian S. , Cuperlovic‐Culf Miroslava , Ouellette Rodney J. , Decken Andreas 
Published: September 2015

Abstractstarting from a wide range of 2‐fluoroaromatic acids or esters bearing further aryl fluorine, trifluoromethyl, and cyano substituents