bluuebunny/crossref_metadata_2025_split huggingface dataset:
Risks, threats, and vulnerabilities within virtual reality technology
Authors: Yao Ng Zheng , Kasmin Intan Farahana , Zainal Abidin Zety Marlia , Vasudavan Hemalata 
Published: August 2024

Virtual Reality (VR) technology is becoming more and more popular in society not only as entertainment but for commercial uses as well. This research proposal touches on the importance of the security within the virtual reality (VR) technology field. It proposes a system that will provide additional insight to the vulnerabilities of the VR system that they are currently using. The methodology that will be used to conduct this research is the qualitative research method, interviews. It will be used to gather the required information and data from the interviewees.
O DIREITO FUNDAMENTAL À HERANÇA E A GARANTIA DOS DIREITOS DA PERSONALIDADE PÓS MORTEM: UM ESTUDO DE CASO DOS INSTITUTOS JURÍDICOS ATUAIS E A NECESSIDADE OU NÃO DE UM NOVO REGRAMENTO
Authors: Freitas Veloso Maria Claudia Almendra , Mendes Costa Sebastião Patrício , Alves Samille Lima , Araújo Amanda Beatriz Alves 
Published: August 2024

Esse artigo investiga o cenário atual diante da transformação social no ciberespaço, tematizando a proteção jurídica da personalidade e o direito à herança digital. O Patrimônio digital sucessório é realidade e a tutela da transmissibilidade da herança no Brasil é ausente de sedimentação legal e jurisprudencial, gerando insegurança jurídica. Como objetivo principal, buscou-se analisar a proteção póstuma do direito fundamental à herança dentro dos novos limites impostos pelo ambiente digital, haja vista a real necessidade de um novo regramento. No que se refere aos aspectos metodológicos, este estudo constitui-se como exploratório e explicativo, com fulcro na abordagem qualitativa e no método hipotético-dedutivo. Para fundamentação teórica, foi utilizada a pesquisa bibliográfica, com busca em sítios eletrônicos oficiais e em base de dados reconhecidas como a Web of Science, Scopus, Scielo Brasil e EBSCO. Ficou constatado neste estudo que, ao invés de se criar novas leis para atender as especificidades do direito à herança digital, é necessário apenas buscar a reconstrução dos institutos jurídicos existentes como, por exemplo, a refuncionalização do codicilo por ser menos formal e solene que um testamento. Isso tornaria o acesso após a morte mais célere, mais econômico e limítrofe.
Strategi Promosi Food and Beverage Department dalam Upaya Menarik Tamu Guna Meningkatkan Pendapatan di Hotel Horaios Malioboro
Authors: Dhian Anggraini Fera , Zidha Rahmayanti Siti 
Published: August 2024

Pariwisata merupakan salah satu penyebab dikenalnya suatu negara di mata dunia, begitu juga dengan Indonesia. Indonesia memiliki sumber daya alam yang melimpah yang dijadikan berbagai macam destinasi wisata, sehingga membuat Indonesia di kenal di mata dunia.Terdapat beberapa faktor pendukung tercapainya kesuksesan industri pariwisata, diantaranya adalah adanya dukungan dari segi transportasi, akomodasi, jasa boga dan restoran. Selain itu, ketiga faktor tersebut juga harus didukung oleh strategi promosi yang baik untuk mengembangkan industri pariwisata khusunya perhotelan.

Hotel dan pariwisata merupakan dua hal yang tidak dapat dipisahkan. Hotel memiliki peranan penting untuk menunjang keberhasilan operasional kegiatan pariwisata, karena dengan adanya hotel wisatawan dapat beristirahat dengan nyaman selama melakukan perjalanan wisatanya. Ketatnya persaingan hotel dewasa ini mengharuskan pihak manajemen hotel untuk menerapkan strategi promosi yang tepat supaya dapat menaikkan tamu sehingga dapat meningkatkan pendapatan. Penelitian ini bertujuan untuk mengetahui strategi promosi Food and Beverage Departement dalam upayanya untuk menarik tamu guna meningkatkan pendapatan di Hotel Horaios Malioboro.

Permasalahan yang diangkat dalam penelitian ini adalah ketatnya persaingan dunia perhotelan di Yogyakarta menjadi perhatian khusus bagi manajemen Hotel Horaios Malioboro untuk menerapkan strategi promosi melalui Food and Beverage Departement. Metode yang digunakan dalam penelitian ini adalah metode penelitian kualitatif. Hasil penelitiannya menunjukkan bahwa strategi promosi yang dilakukan oleh Hotel Horaios Malioboro melaui Food and Beverage Departement telah berhasil menaikkan jumlah tamu sehingga dapat menaikkan pendapatan hotel. Hal tersebut membuktikan bahwa strategi promosi yang tepat dapat mempengarui kenaikan jumlah tamu dan pendapatan hotel.
Pengenalan Pola Hidup Sehat dan Pembelajaran Dasar pada Jenjang Pendidikan Anak Usia Dini
Authors: Rasni Rasni , Saleh Sirajuddin , Syaekhu Ahmad 
Published: August 2024

Pengenalan hidup sehat pada anak sangatlah penting karena membentuk dasar perilaku sehat yang akan mereka bawa sepanjang hidup mereka. Kegiatan ini dilakukan di PAUD Taman Sejahtera Kelapa Dua, Kecamatan Anreapi, Kabupaten Polewali Mandar, Sulawesi Barat. Proses pelaksanaan pemberian materi pola hidup sehat dan pembelajaran dasar untuk PAUD dilakukan dengan cara yang menarik, menyenangkan, dan sesuai dengan usia dan tingkat perkembangan anak. Anak dapat menerapkan pola hidup sehat dan mengetahui pembelajaran dasar setelah melakukan kegiatan pengabdian. Pengenalan pola hidup sehat dan pembelajaran dasar pada PAUD memiliki banyak dampak positif bagi perkembangan anak baik secara fisik, kognitif, sosial, dan emosional. Oleh karena itu sangat penting untuk mengenalkan pola hidup sehat dan pembelajaran dasar kepada anak sejak usia dini agar mereka dapat tumbuh kembang secara optimal dan menjadi generasi penerus bangsa yang berkualitas.
The Effect of Aloe Vera Hydrogel on the Process of Burn Healing: A Systematic Review and Meta-Analysis
Authors: Effan Fahri Mahendra Rahmat , Burhan Asmat 
Published: August 2024

Background: Heat, chemicals, radiation, electricity, and fire can burn skin. Aloevera, among other treatments, helps speed up burn healing, especially first- and second-degree burns. This article examines if aloevera speeds burn recovery.
Aims: In this investigation, the effect of aloevera on the progression of first- and second-degree burns was evaluated.
Design and Methods: This systematic review and meta-analysis examined ProQuest, PubMed, Scopus, Web of Science, ScienceDirect, and CINAHL studies from January 2016 to March 2021. RevMan 5.4.1 and R-Studio meta-analysis risk of bias 2.0.
Results: An examination of residual heterogeneity in 278 people over 4 trials revealed significant variations in wound healing, with an I2 value of 0%. The healing of burn wounds using aloevera showed a Standard Mean Difference (SMD) of 0.00, with a 95% Confidence Interval (CI) ranging from -0.46 to 0.47, indicating a strong level of significance.
Conclusion: Aloevera's effect on the progression of first- and second-degree burns was the purpose of this research.
The effects of vortex structure and vortex translation on the tropical cyclone boundary layer wind field
Authors: Williams Gabriel J. 
Published: January 2015

AbstractThe effects of vortex translation and radial vortex structure in the distribution of boundary layer winds in the inner core of mature tropical cyclones are examined using a high‐resolution slab model and a multilevel model. It is shown that the structure and magnitude of the wind field (and the corresponding secondary circulation) depends sensitively on the radial gradient of the gradient wind field above the boundary layer. Furthermore, it is shown that vortex translation creates low wave number asymmetries in the wind field that rotate anticyclonically with height. A budget analysis of the steady state wind field for both models was also performed in this study. Although the agradient force drives the evolution of the boundary layer wind field for both models, it is shown that the manner in which the boundary layer flow responds to this force differs between the two model representations. In particular, the inner core boundary layer flow in the slab model is dominated by the effects of horizontal advection and horizontal diffusion, leading to the development of shock structures in the model. Conversely, the inner core boundary layer flow in the multilevel model is primarily influenced by the effects of vertical advection and vertical diffusion, which eliminates shock structures in this model. These results further indicate that special care is required to ensure that qualitative applications from slab models are not unduly affected by the neglect of vertical advection.
Identification of when a Langmuir probe is in the sheath of a spacecraft: The effects of secondary electron emission from the probe
Authors: Wang X. , Hsu H.‐W. , Horányi M. 
Published: January 2015

AbstractLangmuir probes on spacecraft have been used for characterizing the ambient plasma parameters in space. When their boom is short compared to the Debye length, the probes remain immersed in the spacecraft sheath, causing the current‐voltage (I‐V) characteristics to deviate from that of a probe far away from the spacecraft. We present identification of when a Langmuir probe is in a sheath, based on the secondary electron (SE) emission from the probe itself. The I‐V characteristics of a spherical probe are investigated in a plasma sheath above a conducting plate. Plasmas with cold and hot electrons (1 eV and 10 eV), as well as monoenergetic electrons (50–100 eV), are created. The derivative (dI/dV) of the probe I‐V curves shows that in addition to a “knee” at a potential more positive than the plasma potential, an additional knee appears at a sheath potential at the probe location. This additional knee is created due to the SE emission from the probe and is identified as an indication of the probe being immersed in the sheath. Our experimental results reproduced the aspects of the Cassini Langmuir probe I‐V characteristics, suggesting that at times, the probe may have been immersed in the sheath of the spacecraft in Saturn's magnetosphere, and SE emission from the probe itself may have significantly altered its I‐V characteristics.
Numerical simulations of Hurricane Katrina (2005) in the turbulent gray zone
Authors: Green Benjamin W. , Zhang Fuqing 
Published: January 2015

AbstractCurrent numerical simulations of tropical cyclones (TCs) use a horizontal grid spacing as small as Δx = 103 m, with all boundary layer (BL) turbulence parameterized. Eventually, TC simulations can be conducted at Large Eddy Simulation (LES) resolution, which requires Δx to fall in the inertial subrange (often <102 m) to adequately resolve the large, energy‐containing eddies. Between the two lies the so‐called “terra incognita” because some of the assumptions used by mesoscale models and LES to treat BL turbulence are invalid. This study performs several 4–6 h simulations of Hurricane Katrina (2005) without a BL parameterization at extremely fine Δx [333, 200, and 111 m, hereafter “Large Eddy Permitting (LEP) runs”] and compares with mesoscale simulations with BL parameterizations (Δx = 3 km, 1 km, and 333 m, hereafter “PBL runs”). There are profound differences in the hurricane BL structure between the PBL and LEP runs: the former have a deeper inflow layer and secondary eyewall formation, whereas the latter have a shallow inflow layer without a secondary eyewall. Among the LEP runs, decreased Δx yields weaker subgrid‐scale vertical momentum fluxes, but the sum of subgrid‐scale and “grid‐scale” fluxes remain similar. There is also evidence that the size of the prevalent BL eddies depends upon Δx, suggesting that convergence to true LES has not yet been reached. Nevertheless, the similarities in the storm‐scale BL structure among the LEP runs indicate that the net effect of the BL on the rest of the hurricane may be somewhat independent of Δx.
Uwired Puts Freshmen Interest Groups On-Line
Authors: Laden Bernice , Jundt Michaelann , Etzkorn Ken 
Published: January 2015

Here is a program that is serving multiple purposes of helping freshmen adjust to the university using peer guidance while giving them a “jump start” with technology. It's also linking information resources in a meaningful way to academics and actively promoting collaboration among students, librarians, and faculty. For more information about the different aspects of this program, consult the following resources: • University of Washington Freshman Interest Group Program. (Online.) Available HTTP: http://weber.u.washington.edu/∼figs/ • University of Washington UWired Program. (Online.) Available HTTP: http//www.washington.edu/uwired/ • UWired: Beyond Technology. Produced by UWTV. Directed by Ann Coppel. 10:17 min. University of Washington, 1995. (Videocassette.)
Beta‐order minimum mean‐square error multichannel spectral amplitude estimation for speech enhancement
Authors: Trawicki M. B. , Johnson M. T. 
Published: January 2015

SummaryIn this paper, the minimum mean‐square error (MMSE) β‐order estimator for multichannel speech enhancement is proposed. The estimator is an extension of the single‐channel MMSE β‐order and multichannel MMSE short‐time spectral amplitude estimators using Rayleigh and Gaussian distributions for the statistical models under the assumption of a diffuse noise field where the noise is estimated independently across each of the microphones. Experiments are performed to evaluate the new estimator against the baseline single‐channel and multichannel estimators using various values of the β parameter and number of microphones along with different levels of noises as a function of the input signal‐to‐noise ratio. By the utilization of additional microphones, the multichannel MMSE β‐order estimator achieves performance gains in noise reduction, speech distortion, and speech quality as measured by the segmental signal‐to‐noise ratio, log‐likelihood ratio, and perceptual evaluation of speech quality objective metrics. Copyright © 2015 John Wiley & Sons, Ltd.
From Acyliminiums/Amidoallenyliums to Highly Functionalized Allene Intermediates: Stereoselective Preparation of Z‐Amidovinyl‐Furans, ‐Pyrroles, ‐Thiophenes, ‐Benzofurans and ‐Benzothiophenes
Authors: Liu Le , Chen Dianpeng , Zhou Hongwei 
Published: January 2015

AbstractThis paper describes the development of a facile protocol to a highly functionalized amidoallenylium by treatment of alkynylimine with acyl bromide in dichloromethane, which may give tetrasubstituted allene intermediates and yield furans, pyrroles, thiophenes, benzofurans and benzothiophenes. The plausible mechanism was discussed and a reaction intermediate was isolated. With the stereoselective transformation of the tetrasubstituted allene intermediate and efficient conversion to versatile heterocyclic compounds, this protocol will be useful to the organic and medicinal chemistry community.magnified image
Investigating human responses to political and environmental change through paleodiet and paleomobility
Authors: Knudson Kelly J. , Torres‐Rouff Christina , Stojanowski Christopher M. 
Published: January 2015

ABSTRACTBioarchaeological approaches are well suited for examining past responses to political and environmental changes. In the Andes, we hypothesized that political and environmental changes around AD 1100 resulted in behavioral changes, visible as shifts in paleodiet and paleomobility, among individuals in the San Pedro de Atacama oases and Loa River Valley. To investigate this hypothesis, we generated carbon and oxygen isotope data from cemeteries dating to the early Middle Horizon (Larache, Quitor‐5, Solor‐3), late Middle Horizon (Casa Parroquial, Coyo Oriental, Coyo‐3, Solcor‐Plaza, Solcor‐3, Tchecar), and Late Intermediate Period (Caspana, Quitor‐6 Tardío, Toconce, Yaye‐1, Yaye‐2, Yaye‐3, Yaye‐4). Carbon isotope data demonstrate a greater range of carbon sources during the late Middle Horizon compared with the Late Intermediate Period; while most individuals consumed largely C3 sources, some late Middle Horizon individuals consumed more C4 sources. Oxygen isotope data demonstrate greater diversity in drinking water sources during the late Middle Horizon compared with the Late Intermediate Period. Water samples were analyzed to provide baseline data on oxygen isotope variability within the Atacama Desert, and demonstrated that oxygen isotope values are indistinguishable in the San Pedro and Loa Rivers. However, oxygen isotope values in water sources in the high‐altitude altiplano and coast are distinct from those in the San Pedro and Loa Rivers. In conclusion, instead of utilizing a wider variety of resources after environmental and political changes, individuals exhibited a wider range of paleodietary and paleomobility strategies during the Middle Horizon, a period of environmental and political stability. Am J Phys Anthropol 157:179–201, 2015. © 2015 Wiley Periodicals, Inc.
The effects of Paraloid B‐72 and Butvar B‐98 treatment and organic solvent removal on δ13C, δ15N, and δ18O values of collagen and hydroxyapatite in a modern bone
Authors: France Christine A.M. , Giaccai Jennifer A. , Doney Charlotte R. 
Published: January 2015

ABSTRACTStable isotopes in bones are a powerful tool for diet, provenance, climate, and physiological reconstructions, but necessarily require well‐preserved specimens unaltered by postmortem diagenesis or conservation practices. This study examines the effects of Paraloid B‐72 and Butvar B‐98, two common consolidants used in field and museum conservation, on δ13C, δ15N, and δ18O values from bone collagen and hydroxyapatite. The effects of solvent removal (100% acetone, 100% ethanol, 9:1 acetone:xylenes, 9:1 ethanol:xylenes) and drying methods (ambient air, vacuum, oven drying at 80°C) were also examined to determine if bones treated with these consolidants can successfully be cleaned and used for stable isotope analyses. Results show that introduction of Paraloid B‐72 or Butvar B‐98 in 100% acetone or 100% ethanol, respectively, with subsequent removal by the same solvents and drying at 80°C facilitates the most successful removal of consolidants and solvents. The δ13C values in collagen, δ15N in collagen, δ18O in hydroxyapatite phosphate, and δ13C in hydroxyapatite structural carbonate were unaltered by treatments with Paraloid or Butvar and subsequent solvent removal. The δ18O in hydroxyapatite structural carbonate showed nonsystematic variability when bones were treated with Paraloid and Butvar, which is hypothesized to be a result of hydroxyl exchange when bones are exposed to consolidants in solution. It is therefore recommended that δ18O in hydroxyapatite structural carbonate should not be used in stable isotope studies if bones have been treated with Paraloid or Butvar. Am J Phys Anthropol 157:330–338, 2015. © 2015 Wiley Periodicals, Inc.
Nucleophilic Addition of Amines to Ruthenium Carbenes: ortho‐(Alkynyloxy)benzylamine Cyclizations towards 1,3‐Benzoxazines
Authors: González‐Rodríguez Carlos , Suárez José Ramón , Varela Jesús A. , Saá Carlos 
Published: January 2015

AbstractA new ruthenium‐catalyzed cyclization of ortho‐(alkynyloxy)benzylamines to dihydro‐1,3‐benzoxazines is reported. The cyclization is thought to take place via the vinyl ruthenium carbene intermediates which are easily formed from [Cp*RuCl(cod)] and N2CHSiMe3. The mild reaction conditions and the efficiency of the procedure allow the easy preparation of a broad range of new 2‐vinyl‐2‐substituted 1,3‐benzoxazine derivatives. Rearrangement of an internal C(sp) in the starting material into a tetrasubstituted C(sp3) atom in the final 1,3‐benzoxazine is highly remarkable.
Highly Enantioselective Nickel‐Catalyzed Intramolecular Reductive Cyclization of Alkynones
Authors: Fu Wenzhen , Nie Ming , Wang Aizhen , Cao Ziping , Tang Wenjun 
Published: January 2015

AbstractThe first asymmetric nickel‐catalyzed intramolecular reductive cyclization of alkynones is reported. A P‐chiral monophosphine and triethylsilane were used as the ligand and the reducing reagent, respectively, to form a series of tertiary allylic alcohols bearing furan/pyran rings in excellent yields and enantioselectivities. This reaction has a broad substrate scope and enabled the efficient synthesis of dehydroxycubebin and chiral dibenzocyclooctadiene skeletons.
Asymmetric Rhodium‐Catalyzed Addition of Thiols to Allenes: Synthesis of Branched Allylic Thioethers and Sulfones
Authors: Pritzius Adrian B. , Breit Bernhard 
Published: January 2015

AbstractA highly regio‐ and enantioselective hydrothiolation of terminal allenes, a reaction which fulfills the criteria of atom economy, is reported. Applying two chiral rhodium catalyst systems, a wide variety of thiols and allenes could be coupled. Oxidation gave access to the corresponding allylic sulfones in essentially enantiomerically pure form. The reaction tolerates a variety of functional groups and labeling experiments gave first insights into the reaction mechanism of this new methodology.
Ligand‐Promoted ortho‐CH Amination with Pd Catalysts
Authors: Zhu Dajian , Yang Guoqiang , He Jian , Chu Ling , Chen Gang , Gong Wei , Chen Ke , Eastgate Martin D. , Yu Jin‐Quan 
Published: January 2015

Abstract2,4,6‐Trimethoxypyridine is identified as an efficient ligand for promoting a Pd‐catalyzed ortho‐CH amination of both benzamides and triflyl‐protected benzylamines. This finding provides guidance for the development of ligands that can improve or enable PdII‐catalyzed CH activation reactions directed by weakly coordinating functional groups.
C‐Selective and Diastereoselective Alkyl Addition to β,γ‐Alkynyl‐α‐imino Esters with Zinc(II)ate Complexes
Authors: Hatano Manabu , Yamashita Kenji , Mizuno Mai , Ito Orie , Ishihara Kazuaki 
Published: January 2015

AbstractSince umpolung α‐imino esters contain three electrophilic centers, regioselective alkyl addition with traditional organometallic reagents has been a serious problem in the practical synthesis of versatile chiral α‐amino acid derivatives. An unusual C‐alkyl addition to α‐imino esters using a Grignard reagent (RMgX)‐derived zinc(II)ate was developed. Zinc(II)ate complexes consist of a Lewis acidic [MgX]+ moiety, a nucleophilic [R3Zn]− moiety, and 2 [MgX2]. Therefore, the ionically separated [R3Zn]− selectively attacks the imino carbon atom ,which is most strongly activated by chelation of [MgX]+. In particular, chiral β,γ‐alkynyl‐α‐imino esters can strongly promote highly regio‐ and diastereoselective C‐alkylation because of structural considerations, and the corresponding optically active α‐quaternary amino acid derivatives are obtained within 5 minutes in high to excellent yields.
Efficient Synthesis, Structure, and Complexation Studies of Electron‐Donating Thiacalix[n]dithienothiophene
Authors: Inoue Ryota , Hasegawa Masashi , Nishinaga Tohru , Yoza Kenji , Mazaki Yasuhiro 
Published: January 2015

AbstractA series of thiacalix[n]dithiothiophenes (n=4–10) was prepared by a facile method and X‐ray analysis was used to determine the molecular structures of square‐ (4‐mer) and pentagonal‐shaped macrocycles (5‐mer). In the cyclic voltammograms, reversible multielectron redox processes, which are due to electronic delocalization, were observed at low oxidation potentials. The cyclic 4‐mer acted as a “Janus‐head” cavitand for two C60 molecules, whereas the 5‐ and 6‐mer formed stable 1:1 complexes with C60 .
Copper‐Catalyzed Cyanomethylation of Allylic Alcohols with Concomitant 1,2‐Aryl Migration: Efficient Synthesis of Functionalized Ketones Containing an α‐Quaternary Center
Authors: Bunescu Ala , Wang Qian , Zhu Jieping 
Published: January 2015

AbstractA copper‐catalyzed alkylation of allylic alcohols by alkyl nitriles with concomitant 1,2‐aryl migration was developed. Formation of the alkyl nitrile radical was followed by its intermolecular addition to alkenes and the migration of a vicinal aryl group with the concomitant generation of a carbonyl functionality to complete the domino sequence. Mechanistic studies suggested that 1,2‐aryl migration proceeded through a radical pathway (neophyl rearrangement). The protocol provided an efficient route to functionalized ketones containing an α‐quaternary center.