bluuebunny/crossref_metadata_2025_split huggingface dataset:
Procedures of User-Centered Usability Assessment for Digital Solutions: Scoping Review of Reviews Reporting on Digital Solutions Relevant for Older Adults
Authors: Silva Anabela G , Caravau Hilma , Martins Ana , Almeida Ana Margarida Pisco , Silva Telmo , Ribeiro Óscar , Santinha Gonçalo , Rocha Nelson P 
Published: October 2020

Background
The assessment of usability is a complex process that involves several steps and procedures. It is important to standardize the evaluation and reporting of usability procedures across studies to guide researchers, facilitate comparisons across studies, and promote high-quality usability studies. The first step to standardizing is to have an overview of how usability study procedures are reported across the literature.

Objective
This scoping review of reviews aims to synthesize the procedures reported for the different steps of the process of conducting a user-centered usability assessment of digital solutions relevant for older adults and to identify potential gaps in the present reporting of procedures. The secondary aim is to identify any principles or frameworks guiding this assessment in view of a standardized approach.

Methods
This is a scoping review of reviews. A 5-stage scoping review methodology was used to identify and describe relevant literature published between 2009 and 2020 as follows: identify the research question, identify relevant studies, select studies for review, chart data from selected literature, and summarize and report results. The research was conducted on 5 electronic databases: PubMed, ACM Digital Library, IEEE, Scopus, and Web of Science. Reviews that met the inclusion criteria (reporting on user-centered usability evaluation procedures for any digital solution that could be relevant for older adults and were published in English) were identified, and data were extracted for further analysis regarding study evaluators, study participants, methods and techniques, tasks, and test environment.

Results
A total of 3958 articles were identified. After a detailed screening, 20 reviews matched the eligibility criteria. The characteristics of the study evaluators and participants and task procedures were only briefly and differently reported. The methods and techniques used for the assessment of usability are the topics that were most commonly and comprehensively reported in the reviews, whereas the test environment was seldom and poorly characterized.

Conclusions
A lack of a detailed description of several steps of the process of assessing usability and no evidence on good practices of performing it suggests that there is a need for a consensus framework on the assessment of user-centered usability evaluation. Such a consensus would inform researchers and allow standardization of procedures, which are likely to result in improved study quality and reporting, increased sensitivity of the usability assessment, and improved comparability across studies and digital solutions. Our findings also highlight the need to investigate whether different ways of assessing usability are more sensitive than others. These findings need to be considered in light of review limitations.
Comparative effectiveness of weekly versus every-2-weeks cetuximab in metastatic colorectal cancer in a US-insured population
Authors: Lamy Francois-Xavier , Batech Michael , Boutmy Emmanuelle , Ronga Philippe , Salim Shaista , Pescott Chris P 
Published: October 2020

Aim:
To test the noninferiority of cetuximab administered every 2 weeks (Q2W) versus once weekly (Q1W) in treating metastatic colorectal cancer (mCRC) with regard to overall survival (OS).
Patients:
Patients receiving cetuximab plus chemotherapy for mCRC in a line-agnostic setting.
Methods:
This cohort study in IBM MarketScan followed patients from initiation of cetuximab for mCRC until the end of the data availability period, proxy-based death or loss of insurance coverage for >30 days.
Results
: The hazard ratio for OS was 0.94 (0.85–1.03), and the inferiority hypothesis was rejected at p < 0.001. No significant differences were noted in rates of safety events between Q2W and Q1W.
Conclusion:
Our real-world study confirmed the noninferiority of cetuximab administered Q2W versus Q1W for OS.
Misstatements and Internal Control Over Operations and Compliance
Authors: Chang Yu-Tzu , Chen Han-Chung , Cheng Rainbow K. , Chi Wuchun 
Published: October 2020

ABSTRACT
This study examines whether the effectiveness of internal control over operations and compliance is associated with the likelihood of financial misstatements. Using a unique dataset from Taiwan, we find that the more deficiencies a company has in internal control over compliance, the greater the likelihood that the company's financial statements will be restated in the future; indeed, severe misstatements are more likely for firms with more internal control deficiencies in compliance. However, we do not find a similar impact involving internal control over operations. As the literature contains little about internal control over operations and compliance, our study contributes by shedding light on the importance of control activities in operations and compliance in regard to the quality of financial reporting.
Konstruksi Portofolio Optimal Saham-Saham LQ45 Tahun 2019 di Bursa Efek Indonesia
Authors: Hardjopranoto Wibisono 
Published: October 2020

Abstract—The ideal investment objective is to build an optimal investment portfolio. An investment portfolio that is able to provide maximum return at a certain level of risk. William Sharpe's (1963) Single Index Model (SIM) is a model with simple application, especially when compared to the Markowitz model (1952), mainly because of the consideration of the number of input variables. A simple SIM explains the relationship between market returns (rm) as an independent variable and returns on securities, ri with variations in the risk as the slope characteristic line, βi. The main limitation of MIS is that the risk in investing is represented only by changes in the index that are representative of the market. Using SIM, this study will describe the optimal portfolio construction by selecting LQ45 stocks on the Indonesia Stock Exchange (IDX) in 2019. The implementation of the SIM resulted in 19 LQ45 stocks selected from 45 stocks as optimal portfolio "members", along with the composition the weighting of the investment value starts from the highest weight to the lowest weight. Because using a single index in measuring risk, the application of SIM is aware of its various weaknesses and must be wise in choosing the index as the market. However, the application of SIM can provide valuable lessons for investment management.Keywords: Portfolio Analysis, Optimal Portfolio, Risk Characteristic Line, Single Index Model
Abstrak—Tujuan investasi yang ideal adalah membangun portofolio investasi yang optimal. Portofolio investasi yang mampu memberikan imbal hasil (return) maksimal pada tingkat risiko tertentu. Single Index Model (SIM) William Sharpe (1963) merupakan model yang aplikasinya sederhana, terutama jika dibandingkan dengan model Markowitz (1952), terutama karena pertimbangan jumlah variabel masukannya. SIM secara sederhana menjelaskan hubungan antara imbal hasil pasar (market return, rm) sebagai variable bebas dengan imbal hasil sekuritas, ri dengan variasi perubahan risiko berupa slope characteristic line, Keterbatasan utama SIM adalah karena risiko berinvestasi hanya diwakili satu-satunya oleh perubahan-perubahan indeks tertentu mewakili pasar. Dengan menggunakan SIM, penelitian ini hendak menggambarkan bangunan portofolio optimal dengan memilih saham-saham LQ45 di Bursa Efek Indonesia (BEI) tahun 2019. Penerapan SIM dimaksud menghasilkan 19 saham LQ45 yang terpilih dari 45 saham sebagai “anggota” portofolio optimal, berikut komposisi pembobotan nilai investasinya mulai dari bobot yang tertinggi ke bobot terendah. Karena menggunakan indeks tunggal dalam mengukur risiko, penerapan SIM selain harus menyadari berbagai kelemahannya juga harus benar-benar bijak dalam memilih indeks sebagai pasarnya. Bagaimanapun, penerapan SIM mampu memberikan pelajaran yang sangat berharga bagi manajemen investasi.Kata kunci: Portfolio Analysis, Optimal Portfolio, Risk Characteristic Line, Single Index Model
Labour Law Under Stress: Some Thoughts on Covid-19 and the Future of the Labour Law
Authors: Anderson Gordon 
Published: October 2020

Even before the Covid-19 crisis, academics and policy analysts were becoming aware of the cumulative impact that are increasingly placing strains on the existing regulatory design of New Zealand’s labour market. These forces include decades of globlisation, increasing international migration flows, various manifestations of the digital and technological revolution, rapid growth of digital-Taylorism as a form of labour control, and perhaps the most devastating in the longer term, the potential impacts of climate change.
It is increasingly recognised that these forces will have a significant long-term impact on labour markets, however, the Covid-19 crisis has shown how rapidly the world can change. This article outlines the (maybe) good, the (sometimes) bad, and then ugly of the Covid-19 pandemic and its economic consequences on New Zealand’s labour relations, labour architecture, and the future of labour law.
La introducción de las teorías de E. Acharius (1757-1819) en la liquenología española
Authors: González Bueno Antonio , Rico Víctor J. 
Published: October 2020

El sistema taxonómico trazado por E. Acharius fue introducido en España por M. Lagasca y S.R. Clemente. La recepción del "Methodus..." (1803) se efectuó con anterioridad Noviembre de 1806, a tenor de la correspondencia mantenida entre M. Lagasca y P. Lallave.
La "Sinopsis..." (1814) fue utilizada con anterioridad a Junio de 1817, este texto fue distribuido por el algólogo sueco C.A. Agardh entre sus corresponsales A. Cabrera y F. Haenseler.
E. Acharius recibió líquenes españoles, herborizados por M. Lagasca, L. Dufour y P.K.A. Schousboe, y ejemplares americanos, de A.J. Cavanilles y J. Dombey, con anterioridad a 1807. Los materiales del "Ensayo..." (1807) de S.R. Clemente fueron recibidos por E. Acharius entre 1809 y 1814.
Se aportan los datos disponibles sobre la localización de los materiales citados por estos autores en sus trabajos liquenológicos.
El género Brimeura Salisb. en las Islas Baleares
Authors: Bibiloni G. , Llorens L. , Rita J. 
Published: October 2020

Se comenta la situación en Mallorca de Brimeura fastigiata (Viv.) Salisb. y de Brimeura amethystina (L.) Chouard. Esta isla balear es el único territorio donde se conoce la coexistencia de estas dos especies consideradas, tradicionalmente, como vicariantes.
Se detalla el proceso de formación de bulbilos foliares en Br. fastigiata. Dichos bulbilos se desarrollan con posterioridad al desprendimiento de los ápices de las hojas.
Asimismo, se comentan las analogías que se han observado entre el desarrollo de una plántula a partir de un bulbilo y de la germinación de una semilla de liliáceas de tipo hipogeo.
Poblaciones y comunidades de algas bentónicas en la costa catalana
Authors: Polo Alberti L. , Seoane Camba J. 
Published: October 2020

Las poblaciones de algas bentónicas forman comunidades que en unos lugares están poco diferenciadas y en otros constituyen comunidades definidas de un cierto valor indicativo. En este trabajo se comentan diversos perfiles de la costa catalana, confeccionadas según esquemas tomados sobre el terreno y auxiliados por fotografías submarinas.
Los perfiles, tomados en varias localidades de la costa, revelan algunos horizontes y facies característicos del Mediterráneo occidental, lo que nos permite a modo de síntesis, tabular según su exposición al oleaje y a la luz, las facies más conspicuas y mejor caracterizadas.
Aportación al conocimiento de los hongos del S.E. de españa. I
Authors: Honrubia M. , Llimona X. 
Published: October 2020

Primer inventario de hongos de la región murciana, observados en otoño de 1977. Figuran en él especies recogidas en la huerta, en jardines, dunas, pinares instalados sobre todo en el área potencial del Chamaeropo-Rhamnetum lycioidis y del Quercetum rofundifoliae, hasta el limite del quejigar (en la Sierra de Caravaca).
Se comenta el cortejo floristico hallado en cada tipo de ambiente. Entre las especies mediterráneas interesantes pueden destacarse: Ceriporia bresadolae, sobre madera dura de pino, Boletopsis leucomelas, Camarophyllus carneogriseus, Tricholomacaligatum, T .psammopus, Corinarius ionochlorus, Geastrum pseudostriatum.
Notas sobre la vegetación micológica centro occidental española
Authors: Moreno G. 
Published: October 2020

Se estudian diversos taxones recolectados en España occidental, resultando nuevos para el Catálogo micológico español: Helvellla queletii Bres., Calocybe constricta (Fr.) Kühn., Gerronema rosellla (J.Lange) Sing., Laccaria lateritia MalenCçon, Mycena alba(Bres.) Kühner, Plateas cinereofuscus Lange, Tubaria segestria ss. Boud.
Se propone Marasmius litoralis Quél. var. ventallonii (Sing.) Moreno comb. et status novas.
Contribuçao para o conhecimiento do genero Ephemerum hampena Peninsula Ibérica
Authors: Sergio C. 
Published: October 2020

Na Península Ibérica, o género Ephemerumestá representado por quatro espécies. Deve tratarse de urn taxon bastante mais vulgar do que se admite, guando se tern em conta as re- feréncias existentes até ao presente. Casares-Gil (1915) nao o referiu para a flora espanhola, e, até este momento, só era conhecida urna colheita em Portugal, efectuada no século passado (Welwitsch 1842).
Neste trabalho sao apresentadas descriçoes, alguns dados morfológicos, ecológicos e biogeográficos, bem como a distribuicao de cada espécie na Península.
Hydrogeological System of Injana Formation in Salahaddin Governorate/ Iraq
Authors: Abdullah Mayyadah Ahmed , Kareem Yaseen Saleh , Saleh Sabbar Abdullah 
Published: October 2020

Injana Formation is the most extended geological formation in Salahaddin Governorate/ Iraq. About 10% of the studied area is covered by the outcrops of the formation as a recharge area. The formation is a subsurface within the unsaturated zone in 5% of the total studied area, while it exists within the saturated zone in about 85%; it is a major confined groundwater aquifer. Therefore, the hydrogeological system of the layers needs to be re-evaluated to describe the successions of aquifers and confining layers and their relation with each other.
The lithology, depths, water table, saturated thickness, hydraulic characteristics of the aquifers, and the lateral and vertical variations of these characteristics were adopted to classify the hydrogeological system. The lithological composition is mainly composed of alternating successions of claystone, siltstone and sandstone with some differentiation within the studied area.
The Quaternary and, occasionally, the Mukdadiya Formations are dry or of secondary aquifer, except in limited areas of the governorate. Injana Formation represents the major upper aquifer in the area, especially in the western bank of Tigris River. The outcrops of the formation are adjacent to Makhul and Hamrin anticlines; while Al-Tharthar valley represents a recharge area for the groundwater. In the remaining parts of the studied area, the formation represents the main deeper of a confined to semi-confined groundwater aquifer.
The general direction of the groundwater movement in this hydrogeological system is towards the discharge area represented by Tigris River and Tharthar Lake, which is compatible with the topographic slope. The formation is classified as a multi-layer aquifer hydrogeological system.
On The Diskcyclic Criterions
Authors: Abdulkareem Rana , Jamil Zeana Zaki 
Published: October 2020

The aim of this work is to give the new types for diskcyclic criterion. We also introduced the case if there is an equivalent relation between a diskcyclic operator and T that satisfies the diskcyclic criterion. Moreover, we discussed the condition that makes T, which satisfies the diskcyclic criterion, a diskcyclic operator
Modeling the Contamination of Soil Adjacent to Mohammed AL-Qassim Highway in Baghdad
Authors: Ghazi Farah Feasal 
Published: October 2020

The aim of this paper is to estimate the concentrations of some heavy metals in Mohammed AL-Qassim Highway in Baghdad city for different distances by using the polynomial interpolation method for functions passing from the data, which is proposed by using the MATLAB software. The sample soil in this paper was taken from the surface layer (0-25 cm depth) at the two sides of the road with four distances (1.5, 10, 25 and 60 m) in each side of the road. Using this method, we can find the concentrations of heavy metals in the soil at any depth and time without using the laboratory, so this method reduces the time, effort and costs of conducting laboratory analyzes.
A Study of Graph Theory Applications in IT Security
Authors: Khaleel Turkan Ahmed , Al-Shumam Ayhan Ahmed 
Published: October 2020

The recent developments in information technology have made major changes in all fields. The transfer of information through networks has become irreplaceable due to its advantages in facilitating the requirements of modern life through developing methods of storing and distributing information. This in turn has led to an increase in information problems and risks that threaten the security of the institutionâ€™s information and can be used in distributed systems environment.
This study focused on two parts; the first is to review the most important applications of the graph theory in the field of network security, and the second is focused on the possibility of using the Euler graph as a Method Object that is employed in Remote Method Invocation (RMI) technique. This algorithm was compared with the most popular algorithms, such as RSA and 3DES. The results were acceptable and need to be improved in the future.
Jalan Tak Berujung: Makna Logo Grab Indonesia
Authors: Malindo Awen Asrizal 
Published: October 2020

Penelitian ini menggunakan pendekatan kualitatif dengan analisis semiotika Roland Barthes untuk mengetahui nilai-nilai apa saja yang terkandung di dalam logo PT. Grab Indonesia sebagai identitas perusahaan dilihat dari makna denotasi, konotasi dan mitos. Berdasarkan hasil penelitian, pemaknaan denotatif pada logo PT. Grab Indonesia memiliki filosofi yang dalam tentang sebuah kehidupan yang digambarkan melalui simbol dua garis berwarna hijau bertuliskan “Grab”. Logo ini terinspirasi dari jalan raya yang tidak putus, merepresentasikan kesempatan-kesempatan untuk pelanggan, mitra, karyawan, hingga masyarakat yang tidak berujung. Hidup dan kehidupan membutuhkan sebuah keseimbangan atas segala realitas dan konsekuensi yang ada dan filosofi tersebut yang digambarkan melalui logotype dan logogram sebagai elemen pembentuk logo perusahaan. Makna konatif ditunjukkan dengan berbagai elemen pada logo berbentuk dua garis yang mewakili jalan raya, sedangkan mitosnya adalah dua garis pada logo tersebut, diartikan sebagai suatu aplikasi dan pengguna, dimana aplikasi tersebut diciptakan untuk melengkapi segala aktifitas pengguna.
PENGARUH EKSTRAK DAUN NILAM (Pogostemon cablin Benth.), DAUN KAYU PUTIH (Melaleuca leucadendra Linn.) DAN DAUN SERAI WANGI (Cymbopogon citratus (D.C. ex Nees.)) TERHADAP REPELLENCY KUTU KEBUL (Bemisia tabaci Genn.)
Authors: Komala Siskha Noor , Rachmawati Jeti , Udiarto Bagus Kukuh 
Published: October 2020

Bemisia tabaci merupakan serangga vektor penyakit virus kuning tanaman cabai. Pengendalian dengan menggunakan insektisida sintetik berlebihan memiliki dampak yang negatif, sehingga dicari upaya alternatif dengan menggunakan insektisida nabati bersifat repellent. Penelitian ini bertujuan untuk mengetahui pengaruh ekstrak daun nilam, serai wangi dan kayu putih pada konsentrasi 40% terhadap repellency B. tabaci dan mengetahui ekstrak yang paling repellent terhadap B. tabaci. Penelitian dilakukan di Laboratorium Entomologi Balitsa, Lembang pada bulan April sampai Juni 2015, menggunakan Rancangan Acak Kelompok dengan empat perlakuan yaitu ekstrak nilam, kayu putih, serai wangi dan kontrol terdiri dari enam ulangan pada dua waktu pengamatan. Pengujian dilakukan menggunakan olfaktometer dua lengan. Pengamatan dilakukan pada jumlah B. tabaci dikedua lengan olfaktometer. Data diolah menggunakan teknik ANAVA dan uji Duncan taraf nyata 5%, serta dihitung daya repellency untuk menentukan kelas repellency. Hasil penelitian menunjukkan bahwa ekstrak nilam, kayu putih dan serai wangi memiliki pengaruh terhadap repellency B. tabaci, dan ekstrak paling efektif bersifat repellent adalah ekstrak daun serai wangi dengan persentase repellency 48,33% dan 45,00%, serta daya repellency sebesar 100% terletak di kelas lima pada kedua waktu pengamatan.Kata Kunci : repellency, ekstrak nilam, ekstrak kayu putih, ekstrak serai wangi, Bemisia tabaci
PENERAPAN MODEL PEMBELAJARAN DISCOVERY LEARNING UNTUK MENINGKATKAN SIKAP ILMIAH DAN KETERAMPILAN PROSES SAINS SISWA PADA SUB MATERI POLA INTERAKSI MANUSIA MEMPENGARUHI EKOSISTEM
Authors: Roheni Ani , Sutresna Yoyon , Ilmiyati Nur 
Published: October 2020

Penelitian ini dilaksanakan dengan metode quasi eksperimen, yang bertujuan untuk mengetahui pengaruh penerapan model pembelajaran discovery learning terhadap pengembangan perilaku ilmiah dan keterampilan proses sains. Populasi yang digunakan dalam penelitian ini yaitu sebanyak 245 siswa di SMP Negeri 3 Ciamis. Sampel yang digunakan yaitu 1 (satu) kelas dengan jumlah siswa 35 orang. Sampel diambil dengan teknik purposive sample. Instrumen yang digunakan adalah angket dan lembar observasi. Hasil penelitian menunjukkan bahwa penerapan model pembelajaran discovery learning dapat mengembangkan perilaku ilmiah dan keterampilan proses sains siswa pada Sub Materi Pola Interaksi Manusia Mempengaruhi Ekosistem. Cantumkan tujuan pada kalimat awal, lengkapi dengan cara analisis data, kesimpulan dan implikasi Kata kunci: discovery learning, Keterampilan proses sains, Model pembelajaran, Sikap ilmiah.
Pituitary adenoma surgeries in COVID-19 era: Early local experience from Egypt
Authors: Arnaout Mohamed M. , Bessar Ahmed A. , Elnashar Ismail , Abaza Hassan , Makia Mansour 
Published: October 2020

Background:The pandemic of COVID-19 has a great impact on all health-care services worldwide. Neurosurgical recommendations are to postpone the endoscopic endonasal pituitary surgeries during the pandemic. We would like to express our experience with urgent pituitary adenomas during the current COVID-19 pandemic.Methods:In our country, COVID-19 has started to become a paramount problem by March 2020. Nine cases of pituitary adenomas have presented with urgent manifestations. The endoscopic endonasal approach was performed in eight patients, while a craniotomy was selected for a recurrent pituitary adenoma. Pre- and postoperative thorough clinical evaluations with chest CT scans were performed. Other strict infection control measures have been applied.Results:In 8 weeks duration starting from the past days of February 2020, we have operated on four females and five males of pituitary adenomas. Visual deterioration was the main presenting symptom. The driving factor for surgery was saving vision in eight patients. Fortunately, the postoperative course was uneventful for all patients. No suspected COVID-19 infection has been reported in any patient or health-care team except one patient. In our city, PCR test was routinely not available.Conclusion:In the era of COVID-19, strict infection control precautions should be employed to limit the possibility of transmission of any possible infection to patient or any of the surgical team. We believe that the risk of getting such infection is not increased by the endonasal approach. Long-term follow-up and large numbers of prospective studies are recommended to delineate the impact of COVID-19 infection on pituitary surgeries.