bluuebunny/crossref_metadata_2025 huggingface dataset:
Facts to the landscape history of the Öreg-Bakony Mountains
Authors: Saláta Dénes , Penksza Károly , Malatinszky Ákos , Kenéz Árpád
Published: July 2023

In the past, Hungarian land use and the landscape itself, was much more colourful and diverse than it is today. Processes and effects resulting in the current state of landscapes are explored during landscape history studies of certain areas. These changes are being examined in the once vast, dense forests covering the Carpathian Basin. These forests have been significantly reduced due to habitat alteration, and their view has changed due to shifting land use. One of the largest forested areas in Hungary is the Bakony Mountains, but its coverage has also decreased significantly during the past 500–1000 years in tandem with traditional agriculture and forestry, which are slowly disappearing as production becomes intensive. Traditions of the Öreg-Bakony (the central and highest part of the Bakony Mountains) accurately portray quondam and irreplaceable customs of the Bakony Mountains. These customs included hogs foraging for acorns, other livestock grazing in the forests, use of tree foliage as fodder or collecting dead fallen leaves, and were everyday practices even in the 19th century. Some geographical names of the area refer to wood-based industries, strengthening their importance in the area.
ANÁLISIS DE DATOS DE PRECIPITACION SATELITAL GPM IMERG_F EN LA CUENCA MADRE DE DIOS, PERÚ
Authors: Salas-Choquehuanca Arthur Javier , Rosales-Solórzano Emer Ronald , Correa-Cuba Odilon , Taquire-Arroyo Alejandro Félix , Asención-Cordova Rocio Maribel
Published: July 2023

Las estimaciones y uso de los registros meteorológicos que proporcionan los satélites facilitan la toma de decisiones técnicas. Por ello el objetivo fue analizar y comparar los datos de precipitación mensual entre satélite GPM IMERG_F v6 y del Servicio Nacional de Meteorología e Hidrología (SENAMHI). El método consistió evaluando los valores faltantes con el paquete “mice” y el software Hydraccess que determina el vector regional y vector correl, y para determinar los errores estadísticos se usó la librería hydroGOF. En resultados el control de calidad de ambos datos de precipitación mensual de factor D.E.D fue < 0,2 y Correl./Vector > 0,7 ajustándose dentro de los parámetros de evaluación, excepto la estación Iñapari con 0,657; comparando los mismos mostró que los errores estadísticos en el NSE fueron < 0,65 que no cuantifica adecuadamente el modelo, en cambio con los datos de CC > 0,8 muestra mejor concordancia. En el RMSE varía al promedio de 146,48 mm considerados como valores extremos, analizando el porcentaje las estaciones Iñapari, Puerto Maldonado, Cuyo Cuyo, Macusani y Ollachea de valores positivos ostentaron una sobreestimación del satélite, sin embargo, en las estaciones de San Gaban, Quincemil y Chontachaca se estima valores negativos y muestran una subestimación. Analizando el índice de detección PDO = 1 ETS = 0,2 FAR = 0,2 y FBI = 1,4 de la serie entre datos mostró una buena representación, excepto las estaciones Ollachea, Macusani y Chontachaca. Concluyendose que los datos del satélite GPM proporciona bajo porcentaje de valores cercanos a los reales del SENAMHI.
Covid-19 Pandemic: Impact on Economic Stability In 8-Em Muslim Countries
Authors: Nasution Lia Nazliana , Suhendi Suhendi , Rusiadi Rusiadi , Rangkuty Dewi Mahrani , Abdiyanto Abdiyanto
Published: July 2023

The impact of the COVID-19 epidemic on economic stability in 8-EM muslim countries is enormous. The analysis forecasts how big of an impact it will have on the extent of the economic recession in the eight EM Muslim countries. The ARDL Panel is utilized in the data analysis model and the independent sample t-test model. As a result, the money supply flowing from all eight EM Muslim nations has a greater impact on economic stability and recession in Indonesia than it does in Saudi Arabia or Pakistan
Moderation of Good Corporate Governance: Earnings Management and Firm Value Against Company Performance
Authors: Ibrahim Ibrahim , Eldi Eldi , Amir Amir , Bunyamin Bunyamin
Published: July 2023

We conducted this study to analyze and examine the influence of earnings management and firm value on firm performance. We also use the variable good corporate governance as a moderating variable to test both. The proxy used for earnings management is the modified jones, firm value using Tobins'Q, financial performance with Return on Assets (ROA), and the GCG proxy taken by researchers, namely the audit committee. The research uses a descriptive method using multiple linear regression analysis test equipment. Data collection was carried out using secondary data on food and beverage sub-sector manufacturing companies listed on the Indonesia Stock Exchange. From the withdrawal of the target population, only 14 companies were obtained that met the criteria. The results of this study indicate that the company's value partially does not affect the company's financial performance, but earnings management affects the company's performance; earnings management moderated by good corporate governance affects the company's financial performance and firm value.
CEO Power, CEO Founder, CEO Financial Expertise, CEO Ownership, CEO Tenure on Bank Performance in Indonesia
Authors: Hakim Luqman , Tantri Mitsalina
Published: July 2023

The purpose of this research is to examine the influence of the personal characteristics of the chief executive officer (CEO) on the performance of commercial banks in Indonesia. In addition, it also analyzes the nonlinear relationship of CEO power, CEO founder, CEO financial expertise, CEO ownership, and CEO tenure to bank performance. A balanced panel data approach has been used in this study. In particular, fixed effect estimation techniques were used to examine the relationship between CEO power, CEO founder, CEO financial expertise, CEO ownership, CEO tenure, and bank performance from 2015 to 2021. so that the total amount of data processed is 3,780 data. The writer finds that the professional qualifications of CEOs are in bank performance. In addition, the impact of the CEO's financial expertise and tenure was positive and significant on performance. And the influence of CEO power, CEO founder, and CEO ownership was seen to be negative and not crucial to bank performance. CEO tenure is beneficial for bank performance. Experienced CEO contributes to higher bank performance. The results are robust across various bank performance proxies and control variables. This study provides insight into the policy regulators and policymakers entrusted with appointing CEOs in banks in light of the ongoing regulatory reforms in Indonesia. This study is one of the early studies examining the relationship between CEO power, CEO founding, CEO financial expertise, CEO ownership, CEO tenure, and bank performance from an emerging economy perspective. It also expands on existing studies to consider both state-owned and private banks operating in Indonesia.
Pengaruh Pengetahuan, Sikap Kerja dan Pengalaman Kerja Terhadap Kinerja Karyawan
Authors: Alias  , Serang Serlin
Published: July 2023

Penelitian ini untuk mengetahui pengaruh pengetahun, sikap kerja, dan pengalaman kerja terhadap kinerja karyawan pada Kantor BPJS Ketenagakerjaan Cabang Makassar, serta untuk menganalisis apakah pengetahuan, sikap dan pengalaman secara bersama-sama berpengaruh terhadap kinerja karyawan pada Kantor BPJS Ketenagakerjaan Cabang Makassar. Penelitian ini menggunakan data kuesioner atau angket-angket, yang dilakukan dengan menyebarkan angket kepada pihak yang dijadikan responden dalam penelitian ini. Sedangkan teknik analisis data adalah uji kualitas instrumen, uji asumsi klasik, analisis regresi linear berganda, serta pengujian hipotesis. Hasil penelitian menemukan bahwa pengetahuan berpengaruh positif dan signifikan terhadap kinerja karyawan pada Kantor BPJS Ketenaga-kerjaan Cabang Makassar. Sikap berpengaruh positif dan signifikan terhadap kinerja karyawan pada Kantor BPJS Ketenagakerjaan Cabang Makassar, hal ini dapat dikatakan bahwa sikap memberikan pengaruh yang bermakna dalam peningkatan kinerja karyawan. Pengalaman kerja berpengaruh positif dan signifikan terhadap kinerja karyawan pada Kantor BPJS Ketenagakerjaan Cabang Makassar, hal ini dapat dikatakan bahwa pengalaman kerja dapat memberikan pengaruh yang berarti terhadap peningkatan kinerja karyawan. Berdasarkan hasil pengujian secara serempak yang menunjukkan bahwa pengetahuan, sikap dan pengalaman kerja secara bersama-sama berpengaruh terhadap kinerja karyawan.
Pengaruh Pajak Dan Retribusi Daerah Terhadap Belanja Modal Pada Badan Pengelolaan Keuangan Dan Aset Daerah
Authors: Tawakkal Ujianti
Published: July 2023

Peneltian ini bertujuan untuk menganalisis pengaruh pajak dan retribusi daerah terhadap belanja modal pada badan pengelolaan keuangan dan aset daerah di Kabupaten Luwu Utara. Pengumpulan data penelitian dilakukan dengan melakukan penyebaran kuesioner yang berkaitan dengan variabel pajak daerah (X1) dan variabel kedua daerah (X2) sedangkan variabel terikatnya belanja modal (Y). Metode statistik yang digunakan untuk menguji hipotesis adalah dengan menggunakan regresi linier berganda dengan bantuan perangkat lunak SPSS for windows 16.00. Hasil penelitian ini menemukan bahwa pajak daerah dan retribusi daerah tidak berpengaruh terhadap belanja modal. Implikasi hasil penelitian ini menjelaskan bahwa apabila terjadi kenaikan pada pajak daerah, tidak akan mempengaruhi belanja modal dan apabila terjadi kenaikan pada retribusi daerah, tidak akan mempengaruhi belanja modal.
Pengaruh Quality Of Work-Life dan Organizational Citizenship Behavior Terhadap Kinerja Karyawan Pada PT. Alfa Retailindo
Authors: Bima M. Irfan Maulana , Basalamah Salim , Zakaria Junaidin , Nurpadila Nurpadila
Published: July 2023

Penelitian ini bertujuan untuk memahami pengaruh quality of work-life dan organizational citizenship behavior terhadap kinerja karyawan pada PT. Alfa Retailindo di Kota Makassar. Pengambilan data dilakukan dengan metode survei kuesioner yang dilakukan pada 84 orang karyawan PT. Alfa Retailindo. Pengujian hipotesis dalam penelitian ini menggunakan analisis regresi linear berganda menggunakan Software Statistik SPSS 26. Hasil penelitian ini menunjukkan bahwa (1) quality of worklife memiliki pengaruh yang positif dan signifikan terhadap kinerja karyawan, dan (2) organizational citizenship behavior juga memiliki pengaruh yang positif dan signifikan terhadap kinerja karyawan. Kedua variabel quality of work-life dan organizational citizenship behavior dapat digunakan untuk meningkatkankinerja karyawan pada PT. Alfa Retailindo.
Analisis Efektivitas Penerapan Sistem Pengendalian Internal Penjualan Produk Dalam Pencegahan Kecurangan (Fraud) PT Japfa Makassar
Authors: Alwing Syahrir Syam , Su'un Muhammad , Abduh Muhammad
Published: July 2023

Penelitian ini bertujuan untuk mengetahui dan menganalisis Penerapan Sistem Pengendalian Internal Penjualan Produk yang selama ini sudah berjalan efektif dan efisien sesuai dengan prosedur dan dapat mencegah terjadinya kecurangan (fraud). Metode Analisis yang digunakan dalam penelitian ini adalah deskriptif. Adapun pengumpulan data yang dilakukan oleh peneliti adalah dokumentasi, wawancara dan observasi. Sumber data dalam penelitian ini adalah data primer dan data sekunder. Berdasarkan analisis yang telah dilakukan dapat disimpulkan bahwa pengendalian internal penjualan produk telah terlaksana dengan sangat efektif namun ada beberapa bagian dari fungsi penjualan yang belum melaksanakan unsur sistem pengendalian internal secara keseluruhan seperti penagihan yang tidak turut menandatangani faktur penjualan yang keluar.
Pengaruh Cyberloafing, Stres Kerja dan Lingkungan Kerja terhadap Kinerja Pegawai Badan Kepegawaian dan Pengembangan Sumber Daya Manusia Daerah (BKPSDMD)
Authors: Ihsan Muhammad , Fadhil Muhammad , Hamid Usman
Published: July 2023

Penelitian ini bertujuan untuk: 1) mengetahui pengaruh cyberloafing terhadap kinerja pegawai Badan Kepegawaian dan Pengembangan Sumber Daya Manusia Daera Kota Makassar, dan 2) mengetahui pengaruh stress kerja terhadap kinerja pegawai Badan Kepegawaian dan Pengembangan Sumber Daya Manusia Daera Kota Makassar Kota Makassar. Pendekatan penelitian ini menggunakan penelitian kuantitatif. Penelitian dilakukan di Badan Kepegawaian dan Pengembangan Sumber Daya Manusia Daerah Kota Makassar. Waktu penelitian dilakukan mulai bulan Februari – Maret 2022. Populasi penelitian adalah seluruh pegawai yang ada di Badan Kepegawaian dan Pengembangan Sumber Daya Manusia Daerah Kota Makassar. Metode penentuan sampel yang digunakan dalam penelitian ini adalah metode slovin dengan propbability sampling dengan insidental random sampling yaitu pengambilan secara acak dari populasi karena populasi dianggap homogen. Metode analisis yang digunakan dalam penelitian ini adalah analisis deskriptif, verifiasi, uji instrument penelitian (validitas dan reliabilitas), uji asumsi klasi (uji normalitas, uji multikolinieirtas dan uji heterokedastisitas), uji regresi berganda dan uji hipotesis. Hasil penelitian ini menunjukkan bahwa: 1) cyberloafing berpengaruh negatif terhadap kinerja pegawai Badan Kepegawaian dan Pengembangan Sumber Daya Manusia Daerah Kota Makassar, dan 2) stress kerja berpengaruj negatif terhadap kinerja pegawai Badan Kepegawaian dan Pengembangan Sumber Daya Manusia Daerah Kota Makassar Kota Makassar.
Pengaruh Aset Pajak Tangguhan, Beban Pajak Tangguhan dan Perencanaan Pajak terhadap Manajemen Laba
Authors: Humayra  , Andika Pramukti  , Rosmawati
Published: July 2023

Penelitian ini bertujuan untuk mengetahui pengaruh aset pajak tangguhan terhadap manajemen laba, pengaruh beban pajak terhadap manajemen laba dan pengaruh perencanaan pajak terhadap manajemen laba pada Perusahaan Manufaktur Indeks LQ45 Bursa Efek Indonesia. Data dalam penelitian ini diperoleh dari Indonesia stock Exchange (IDX) yaitu, (www.idx.co.id). Penelitian ini menggunakan data sekunder yang diperoleh secara tidak langsung melalui media perantara dari situs resmi (www.idx.co.id) selama priode penelitian yakni 2018-2020 dan diperoleh 12 perusahaan yang terdaftar dengan memenuhi kriteria dalam penelitian ini. Metode alasisis data yang digunakan dalam penelitian ini adalah alisis regresi linear berganda. Hasil penelitian ini menunjukkan bahwa: secara parsial, variabel Aset Pajak Tangguhan tidak berpengaruh signifikan terhdap Manajemen Laba, variabel Beban Pajak Tangguhan tidak berpengaruh signifikan terhadap Manajemen Laba dan variabel Perencanaan Pajak berpengaruh signifikan terhadap Manajemen Laba.
Determinan Efektivitas Audit Internal Pemerintah
Authors: Farid Jinan Salsabila A , Hajering  , Ikhtiari Kirana , Muslim Muslim
Published: July 2023

Tujuan dari penelitian ini adalah untuk mengetahui faktor – faktor yang mempengaruhi efektivitas audit internal pada Kantor Inspektorat Provinsi Sulawesi Selatan. Faktor – faktor yang dapat mempengaruhi efektivitas audit yang digunakan pada penelitian ini yaitu keahlian profesional, kualitas audit, independensi dan lingkup pekerjaan. Data diperoleh dengan cara membagikan kuesioner kepada responden yaitu auditor Kantor Inspektorat Provinsi Sulawesi Selatan dengan jumlah responden sebanyak 52 orang. Analisis data menggunakan analisis regresi linier. Pengolahan data menggunakan program IBM SPSS 24. Hasil penelitian menunjukkan bahwa secara parsial keahlian profesional, kualitas pekerjaan audit dan lingkup pekerjaan berpengaruh positif dan signifikan terhadap efektivitas audit internal pada Kantor Inspektorat Provinsi Sulawesi Selatan. Sedangkan, independensi tidak berpengaruh signifikan terhadap efektivitas audit internal pada Kantor Inspektorat Provinsi Sulawesi Selatan.
Good Corporate Governance dan Kinerja Keuangan Perusahaan
Authors: Ahmad Syafira , Mus Abdul Rahman , Shaleh Musliha , Muslim Muslim
Published: July 2023

Tujuan penelitian ini adalah untuk mengetahui pengaruh penerapan good corporate governance menggunakan kinerja keuangan yang diproksikan menggunakan Return on Equity (ROE), dan variabel independen penelitian ini adalah good corporate governance dengan menggunakan Kepemilikan Manajerial, Komisaris Independen, dan Komite Audit. Penelitian ini menggunakan data sekunder berupa laopran tahunan dengan periode 2019-2021 dan total sampel 17. Data diperoleh dari Bursa Efek Indoensia (BEI). Kepemilikan Manajerial terbukti tidak berpengaruh signifikan terhadap Kinerja Keuangan (ROE). Hal ini dikarenakan kinerja manajemen tidak dipengaruhi oleh adanya keterlibatan manajemen dalam hal kepemilikan saham. Manajemen akan tetap bekerja sesuai keinginan pihak pemegang saham meski dirinya tidak memiliki proporsi sahamdalam perusahaan. Komisaris Independen terbukti berpengaruh signifikan terhadap Kinerja Keuangan (ROE). Hasil ini mengindikasikan bahwa dengan meningkatnya proporsi/jumlah komisaris independen maka kineraja keuangan (ROE) akan meningkat. Semakin banyak proporsi dewan komisaris independen dalam suatu di suatu perusahaan di Indonesia, maka akan memberikan strategi dan pengawasan yang netral sehingga tata kelola perusahaan lebih baik karena fungsi pengendaliandilakukan secara independen dan mengarah pada profesional. Komite Audit terbukti tidak berpengaruh signifikan terhadap kinerja keuangan (ROE). Hasil ini menunjukkan Jumlah komite audit tidak dapat menjamin keefektifan kinerja komite audit dalam melakukan pengawasan atas aktivitas manajemen serta kurangnya insentif eksternal untuk mendorong terciptanya efisiensi perusahaan terhadap kinerja keuangan.
Kreditsicherheiten von Nahbereichspersonen
Authors: Schüßler Julian
Published: July 2023

According to the related-persons-case-law, loan collateral provided by relatives of a borrower is immoral if they are blatantly financially overburdened and have no self-interest in the loan. An exploitation of emotional bond by the creditor is presumed. This handling of the federal court is presented in full. In addition, a number of suggestions for improvement are made, for example on the calculation of the blatant financial overload and on the requirement of a close personal relationship. In addition, the limits of the scope of application are defined, in particular with regard to consumers as creditors or to mortgages as well as loan agreements instead of personal securities.
Post-cesarean Delivery Analgesia Using Spinal Anesthesia: Ropivacaine-Fentanyl vs. Ropivacaine-Sufentanil
Authors: Mohtadi Ahmad Reza , Ahmadi Chegeni Atusa , Behaeen Kaveh , Savaie Mohsen , Ghomeishi Ali
Published: July 2023

Background: To improve the quality of intraoperative and postoperative analgesia during spinal anesthesia, intrathecal opioids are used as adjuvant drugs in combination with local anesthetics. Objectives: This study aimed to compare the intrathecal injection of ropivacaine-fentanyl with ropivacaine-sufentanil in terms of the duration of analgesia after cesarean section (CS). Methods: This randomized, double-blind clinical trial study was conducted on women referred to Imam Khomeini Hospital of Ahvaz City for elective CS in 2021. A total of 51 patients were randomly divided into 2 groups. The first group (n = 25) received ropivacaine (17.5 mg) + fentanyl (25 μg), while the second group (n = 26) received ropivacaine (17.5 mg) + sufentanil (2.5 μg) for spinal anesthesia. Eventually, several parameters were investigated, including the duration of sensory and motor block, duration of analgesia (based on the Visual Analog Scale (VAS)), hemodynamic parameters, and possible complications. Results: The duration of surgery (P = 0.059) and the duration of motor block (P = 0.962) were not significantly different between the 2 groups. The mean duration of analgesia (from the time of entering recovery to reaching VAS = 3) was 203.12 ± 72.93 and 207.46 ± 69.59 minutes in the fentanyl and sufentanil groups, respectively (P = 0.658). Systolic and diastolic blood pressure (SBP/DBP) drops in minute 5 were observed more frequently in the sufentanil group than in the fentanyl group (P = 0.027 and P = 0.002, respectively). At the other time points, however, no significant difference was observed between the 2 groups in terms of hemodynamic variables (P > 0.05). Finally, the frequency of pruritus was higher in the sufentanil group than in the fentanyl group (26.9% vs. 4.0%; P = 0.024). Conclusions: Adding fentanyl or sufentanil to intrathecal ropivacaine provides a similar duration of analgesia. However, fentanyl was associated with better hemodynamic stability and a lower incidence of pruritus.
The Role of Aloe vera in Inhibiting the P53 Protein Expression and Enhancing the HT29 Colon Cancer Cells Proliferation
Authors: Hesari Marjan , Shafaei Hajar , Khamnei Saeed , Kamali Kalasour Navid
Published: July 2023

Background: Aloe vera is one of the most widely recognized herbs considered a valid treatment option for its wound healing and anti-inflammatory properties. However, there is insufficient evidence regarding the effectiveness of its anti-tumor activity on colon cancer. Objectives: In this study, therefore, we investigated the effect of Aloe vera on the proliferation and survival of the HT29 colon cancer cell line. Methods: The effect of processed Aloe vera gel (PAG) on colon carcinogenesis was examined using low glucose Dulbecco’s modified Eagle’s medium (DMEM) with 10% serum and 1% penicillin-streptomycin in the HT29 cells. Then, we obtained the expression levels of P53 and BCL2 using the immunocytochemical (ICC) method. To determine the viability of the HT29 cells, we also performed the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Results: The MTT assay showed that the HT29 cells were viable in 5%, 10%, 15%, and 20% of Aloe vera gel (AVG). However, these cells had a more obvious proliferation in the 10% Aloe vera group than in the control group. In the 10% concentration group, mitotic cells were evident in the center of the colonies. The P53 protein expression decreased, but the BCL2 protein expression remained unchanged in the 10% group compared to the control group. Conclusions: The results, therefore, indicated that in the 10% Aloe vera concentration, the expression levels of P53, known as a tumor suppressor protein in colon cancer, decreased in HT29. Our results also showed that the application of Aloe vera for its anti-tumor activity in colon cancer should be further evaluated.
Threefold functions of the heart in Pascal's view and their relations to the nature of human
Authors: Ahmadizade Hasan , Alirezaean Mahnaz
Published: July 2023

One of the key concepts in Pascal's thought is the heart. Pascal sees it as important as the knowledge of human beings and the knowledge of God. He considers the heart from three viewpoints: rational, volitional, and faithful. He shows that although some philosophers considered different faculties for the human being, the basis of them all is the heart. In this article, we try to depict that show the diffuse structure of Pensées, we can see threefold functions for the heart and that the heart is the basis of the nature of human beings.
Identificación de parámetros en geotecnia aplicación a la excavación de túneles
Authors:   , Ledesma Villalba Alberto
Published: July 2023

En esta tesis se desarrolla una metodología general para la identificación de parámetros en problemas geotécnicos.

Dado un problema especifico se supone fijado un modelo (determinista) y se consideran conocidos algunos valores de las variables de estado que caracterizan el sistema (observaciones). La identificación de parámetros o resolución del problema inverso consiste en estimar los parámetros del modelo que mejor ajustan predicciones y medidas. Como criterio de identificación se ha escogido el de máxima verosimilitud que permite incorporar en su formulación la información previa disponible sobre los parámetros a identificar. El problema matemático que resulta es el de minimización de una función objetivo que se resuelve numéricamente utilizando los algoritmos de Gauss-Newton y de Marquardt. Para ello se requiere calcular la matriz de derivadas de las variables medidas respecto de los parámetros calculo que se propone realizarlo utilizando el método de los elementos finitos indicando el procedimiento para ello tanto en modelos lineales como no lineales.

Las matrices de covarianzas de los errores de las medidas que aparecen de modo natural en la formulación propuesta se calculan para diferentes tipos de instrumentos utilizados en la medida de desplazamientos en el terreno. Se desarrolla además una metodología para considerar la estructura de error como una variable mas a identificar.

La metodología global propuesta se aplica a varios ejemplos teóricos referentes a excavación de túneles y a un caso real relativo a un túnel real en el que se midieron desplazamientos y se identificaron módulos de las capas de terreno afectadas por la excavación.
Thermo-hydro-mechanical analysis of joints a theoretical and experimental study
Authors:   , Zandarín Iragorre María Teresa
Published: July 2023

The thesis presents numerical and experimental studies on joints.
A formulation for the coupled analysis of thermo- hydro- mechanical problems in joints is presented. The work involves the establishment of equilibrium and mass and energy balance equations. Balance equations were formulated taking into account two phases: water and air.

Once the joint element was implemented in Code_Bright computer code, it was then used to study some cases. The numerical simulation of hydraulic shear tests of roughness granite joints is presented. This allowed evaluating the coupling between permeability and the geometry of the opening of the joint. Then, a thermo-hydro-mechanical simulation of a large-scale nuclear waste repository was performed considering the joint element to model the interface between canister and bentonite. This example allowed evaluating the behaviour of the joint element when coupled to continuum elements. Then, other examples show how hydro-mechanical coupling affects the permeability and saturation of the joints and adjacent material. Finally, the gas flow through joints was also investigated.

The experimental investigation focused on the effects of suction on the mechanical behaviour of rock joints. Laboratory tests were performed in a direct shear cell equipped with suction control. Suction was monitored using a vapour forced convection circuit controlled by an air pump that was connected to the shear cell. Once equilibrium conditions are achieved, the rock specimen is assumed to reach the Relative Humidity imposed by the flowing air at a given vapour concentration. Artificial joints of Lilla claystone were prepared. Joint roughness of varying intensity was created by carving the surfaces in contact in such a manner that rock ridges of different tip angles formed. These angles ranged from 0º (smooth joint) to 45º (very rough joint profile). The geometric profiles of the two surfaces in contact were initially positioned in a "matching" situation. Several tests were performed for different values of suction (200, 100 and 20 MPa) and for different values of vertical stress (30, 60 and 150 kPa).
A constitutive model including the effects of suction and joint roughness is proposed to simulate the unsaturated behaviour of rock joints.
The new constitutive law was incorporated in the code and experimental data were numerically simulated.
Modelización numérica del comportamiento estructural de barras de pandeo restringido
Authors:   , Castro Medina Juan Carlos
Published: July 2023

The energy dissipators are passive components that are incorporated into buildings and other structures undergoing dynamic excitations, especially earthquakes. Its purpose is to absorb the greatest part of the input energy, thus protecting the main structure.
These devices are not a part of the main load-carrying system and therefore can be easily replaced after suffering serious damage. These devices are connected to the structure to be protected in such a way that they experience large strains under the action of the earthquakes; such strains produce the energy absorption.
In building structures, the dissipators are installed in frames, usually in concentric bracing bars (either diagonal or chevron braces) since the interstory drifts generate significant distortions in these elements. Various types of dissipators have been proposed for building structures. Those based on yielding of metals, commonly known as hysteretic, are distinguished by their simplicity, economy and robustness; among them, the so-called buckling restrained braces have experienced a remarkable development because of their important advantages. The buckling restrained braces consist of concentric bracing bars composed by a slender steel core surrounded by a stockier casing, usually made of mortar and / or steel. It is crucial that there is a sliding interface between the core and the cover, to prevent relevant shear stress transfer. When the core is pulled or pushed it yields; the casing prevents the buckling of the core. These cycles of tensile and compressive yielding constitute the hysteresis loops through which the energy is dissipated.
Despite relevant experience exists on buckling restrained braces (both on research and practical applications) many questions still remain unanswered. In particular, no reliable and accurate model of the structural behavior has been proposed. This lack prevents a deep understanding of the complex phenomena that occur during the operation of these elements, and hinders the development of innovative solutions. This work aims to improve the knowledge about the behavior of these devices, developing a comprehensive numerical model that opens the door for future developments.
The results obtained with the proposed numerical model are compared with experimental results obtained at the University of Girona and the University of California.
Los orígenes del Ensanche de Barcelona : suelo, técnica e iniciativa
Authors: Corominas Ayala Miquel
Published: July 2023

El objetivo de esta obra es dar a conocer la formacion y la ejecucion inicial de una de las piezas mas significativas de la urbanistica del siglo XIX: el Ensanche de Barcelona, segun el proyecto de Ildefonso Cerda, la transformacion de un territorio rural desconocido, la tecnica de su construccion y el sector inmobiliario que lo desarrollo, explicando no solo el hecho urbanistico sino tambien una parte importante de la historia de Barcelona. Dicha publicacion se enmarca en la linea de los trabajos de investigacion que los profesores del LUB han venido desarrollando desde finales de los anos sesenta y, concretamente, en el debate sobre los "ensanches," que es objeto de un gran numero de trabajos de investigacion. El estudio de una trama de ensanche, forma de crecimiento muy difundida, ha generado una fuerte demanda de conferencias, publicaciones y exposiciones, como la organizada por el LUB en los anos ochenta, que recorrio las principales ciudades y universidades europeas y motivo la edicion de la documentacion del Plan Cerda a principios de los noventa. Ademas, cada vez es mayor el interes que este tema suscita en las universidades y centros de estudios de ls ciudades espanolas, centroeuropeas y americanas que han experimentado crecimientos de ensanche, y especialmente entre los alumnos de las universidades de Barcelona, de modo que el Ensanche de Cerda ya forma parte de una cultura popular, igual que las obras de Gaudi o de tantos otros artistas.
El Soporte infraestructural de la ciudad
Authors: Herce Vallejo Manuel , Miró Farrerons Joan
Published: July 2023

El presente libro pretende aportar una visión integrada del proyecto y dimensionado de las redes de servicios urbanos, analizando sus funciones e interrelaciones, planteadas desde sus parámetros de diseño, fundamentales en su colaboración a la construcción de la ciudad. Dicho enfoque destaca el hecho de constituir el soporte infraestructural de una ciudad, con una permanencia temporal superior a cualquier otra intervención sobre ella, de modo que condiciona y apoya su extensión sobre el territorio y la forma en que ésta se manifiesta. Con ello se busca superar la visión simplificada que aportan los manuales técnicos de cálculo, enfocados siempre desde la perspectiva del funcionamiento de cada una de las redes de servicios, y frecuentemente descontextualizados respecto a su entorno social y geográfico. De ahí la preferencia por acentuar los parámetros fundamentales que afectan al proyecto de esas infraestructuras desde la lógica de la construcción de la ciudad y con la gradación que exige la variedad de niveles de urbanización con que ésta se da actualmente en el mundo.
Urban zapping : ciudades, productos y marcas
Authors: Dachevsky Daniel Marcelo
Published: July 2023

¿Cuál es la función real de las ciudades en una economía globalizada, que cuestiona su soberanía? Si realmente las nuevas tecnologías liberaron la producción del territorio, ¿qué estrategias deben emplear las ciudades para que perdure su presencia, cuando empresas, ciudadanos y visitantes pueden elegir libremente el espacio que desean utilizar? ¿Si éstos se convierten en clientes, tienen el mando? ¿Se puede cambiar de ciudad con un mínimo esfuerzo, buscando la más adecuada? ¿La globalización permite incorporar el concepto de zapping urbano como una nueva variable?
Este libro muestra cómo las nuevas condiciones productivas inciden en la ciudad, cambiando su estructura interna y externa, y convierten en obsoletas muchas de las concepciones de gestión aún vigentes. Se traza un nuevo perfil de ciudad, que debe captar la atención de sus clientes. La ciudad ya no puede ejercer la función soberana de contención que la caracterizó en otros períodos históricos. Hoy las ciudades deben competir y, para ello, han de convertirse en objetos de deseo, igual que los productos.
Arquitectura y energía natural
Authors: Serra Florensa Rafael , Coch Roura Helena
Published: July 2023

La arquitectura se ha entendido normalmente como geometría y materia, abstracción dibujada y realidad tangible, pero raramente se ha valorado en su definición el papel de la energía: luz, sonido, calor, etc. Desde la percepción ambiental y el confort hasta la constatación del valor espacial de la energía, se intentan facilitar al arquitecto los conceptos para encontrar la solución óptima de unas necesidades a menudo imprecisas. El conocimiento de los conceptos, sistemas y componentes adecuados, así como de los sistemas prácticos de evaluación, permiten entender el diseño con energías naturales en la arquitectura como una nueva forma de enfocar el proyecto.
A method of tracking and positioning of industrial robots
Authors: Tengfeng AI
Published: July 2023

In this paper, an improved tracking and localization algorithm of an omni-directional mobile industrial robot is proposed to meet the high positional accuracy requirement, improve the robot’s repeatability positioning precision in the traditional trilateral algorithm, and solve the problem of pose lost in the moving process. Laser sensors are used to identify the reflectors, and by associating the reflectors identified at a particular time with the reflectors at a previous time, an optimal triangular positioning method is applied to realize the positioning and tracking of the robot. The experimental results show that positioning accuracy can be satisfied, and the repeatability and anti-jamming ability of the omni-directional mobile industrial robot will be greatly improved via this algorithm.
Mobile Robot Object Detection Method Based on Deep Learning
Authors: Yuhan Guo
Published: July 2023

The task of object detection is to accurately and efficiently identify and locate a large number of predefined categories of object instances from images. With the wide application of deep learning, the accuracy and efficiency of target detection have been greatly improved. However, deep learning-based target detection still faces challenges from key technologies such as improving and optimizing the performance of mainstream target detection algorithms, improving the detection accuracy of small target objects, realizing multi-class object detection and lightweight detection model. In response to the above challenges, based on extensive literature research, this paper analyses methods for lightweight detection models and improved detection accuracy from the perspective of YOLOv5s network structure. The problems to be solved in target detection and the future research direction are predicted and prospected.
In Brief: A New Indication for Abemaciclib (Verzenio)
Authors:   Editors from The Medical Letter
Published: July 2023

The oral cyclin-dependent kinase (CDK) 4/6 inhibitor abemaciclib (Verzenio – Lilly) has been approved by the FDA for use in combination with endocrine therapy (tamoxifen or an aromatase inhibitor) for adjuvant treatment of patients with hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative, node-positive, early breast cancer at high risk of recurrence.
Omidubicel (Omisirge) for Neutrophil Recovery Following Myeloablative Conditioning Therapy
Authors:   Editors from The Medical Letter
Published: July 2023

The FDA has approved omidubicel-onlv (Omisirge – Gamida Cell), a nicotinamide-modified, allogeneic hematopoietic progenitor cell therapy derived from cord blood, to reduce the time to neutrophil recovery and the risk of infection in patients ≥12 years old with hematologic malignancies who will undergo umbilical cord blood transplantation following myeloablative conditioning therapy.
Epcoritamab (Epkinly) for Diffuse Large B-Cell Lymphoma (DLBCL)
Authors:   Editors from The Medical Letter
Published: July 2023

Epcoritamab-bysp (Epkinly – Genmab), a bispecific CD20-directed CD3 T-cell engager, has received accelerated approval from the FDA for subcutaneous treatment of relapsed or refractory diffuse large B-cell lymphoma (DLBCL), not otherwise specified, including DLBCL arising from indolent lymphoma, and high-grade B-cell lymphoma after ≥2 lines of systemic therapy.
Sotorasib (Lumakras) for NSCLC
Authors:   Editors from The Medical Letter
Published: July 2023

Sotorasib (Lumakras — Amgen), an oral KRAS inhibitor, has received accelerated approval by the FDA for treatment of KRAS G12C-mutated locally advanced or metastatic non-small cell lung cancer (NSCLC) in adults who received at least one prior systemic therapy.
Assessment of brucella infection status in abattoir workers and animals destined for slaughter at Dodoma modern abattoir, Tanzania
Authors:   , Luwumba Denice
Published: July 2023

Brucellosis is one of the most widespread zoonosis of serious public health and an obstacle to food safety and security and, socio-economic development in most African countries. A cross-sectional study was conducted to determine the prevalence of brucellosis in abattoir workers and animals destined for slaughter; molecular characterization of Brucella species; and assess risk factors, knowledge, awareness and practices associated with transmission of human brucellosis at an abattoir setting. A total of 452 serum samples; 190, 200 and 62 from cattle, goats and humans, respectively were collected in animals and workers at Dodoma modern abattoir, Tanzania. The seroprevalence of brucellosis in cattle, goats and abattoir workers was 7.3%, 1.5% and 1.6%, respectively based on Rose Bengal Plate Test. A semi-structured questionnaire was used to collect data for assessing the knowledge, awareness and practices as well as risk factors related to brucellosis exposure at the abattoir. Knowledge, awareness coupled with adherence to biosafety measures such as wearing protective gears minimizes significantly the risks of human exposure to brucellosis. On molecular characterization of Brucella species, an amplicon with 731 base pairs (bp) which is from B. melitensis was detected in one person working in the abattoir. The low prevalence of human brucellosis at the abattoir may be attributed to the institution of biosafety measures and training of the workers. Therefore more education on the disease to farmers, abattoir workers and general public as well as instituting control measures at the farm level and biosafety measures at abattoir setting is needed.
Human impacts on the habitat structure for reptiles in the Uzungwa scarp nature forest reserve (USNFR)
Authors:   , Lyakurwa John
Published: July 2023

While knowledge of African herpetology has increased dramatically in recent years, many areas have not yet been adequately explored. The need for assessing habitat characteristics for reptile species is urgently required due to anthropogenic threats and how to best understand/mitigate such changes. Intensive field work was conducted during the rainy season from December 2017 to April 2018 to assess reptile occurrence mostly in biologically least explored areas of the Uzungwa Scarp Nature Forest Reserve (USNFR) which is part of the Udzungwa Mountain range in the Eastern Arc Mountains (EAM), and adjacent agricultural areas. Bucket pitfall traps, funnel traps, night transects, time constrained and opportunistic searches were used to sample reptiles across four zones; in lowland, submontane and montane forests of the USNFR and in neighboring farmlands. Interviews were used to assess farmers‟ perceptions on reptiles and provided data to supplement trapping in farmlands. Forty-five reptile species across 14 families were recorded, mostly concentrated in the lowland and submontane forests. Most endemic and threatened species were found in the submontane forest. This study reports nineteen species new to the USNFR, one being new to science. Five and four species represent distribution and elevation range extensions, respectively. Reptile species diversity and abundance differed significantly across the four zones, except between montane and farmland zones and between lowland and submontane zones. Species composition was strongly affected by elevation and land use type with farmland being more discordant from other zones and sites closer to each other being more related in their reptile species composition. Farmers were poorly informed on reptiles, and killing was the major action taken when a snake was encountered by them. This study adds to the importance of the EAM not only in harbouring large numbers of species but also as an important hotspot for endemic and threatened reptiles.
Towards More Robotic Assistance for Everyday Life
Authors: Rönnau Arne , Overbeck Martina , Behnke Sven , Gersch Martin , Kral Björn , Varro Werner , Becker Pascal
Published: July 2023

The performance and flexibility of the latest robot technologies make it possible to bring more and more robots to everyday life. However, this also creates a number of challenges: safety, legal regulations, reliability, reusability, and also business models must be considered under special, difficult conditions in everyday life. Furthermore, the acceptance and interaction between humans and robots are of central importance for the success of service and assistance applications. This collection summarises 15 studies from the BMBF-funded program "Robots for Assistance: Interaction in the Field." The full studies are written in German and provide valuable insights into the challenges, potentials, and solutions for successful interaction in everyday environments. The collection is accompanied by this preface article, which, in addition to the interaction focus of the studies, addresses other important aspects for successful service and assistance robots in everyday life. Finally, the Human-Robot-Interaction (HRI) studies are summarised in English to enable the comparison and discussion of their challenges and approaches.
Impact of Physical Work Environment upon Nurses’ Job performance in Al-Nassiryah City Hospitals
Authors: Kadhim Hussein
Published: July 2023

AbstractObjectives: The work environment has an impact on the performance of nurses, as well as to determine the relationship between the work environment and the performance of nurses.Research methodology: A descriptive analytical study was designed for the impact of the work environment on the performance of nurses' jobs in the hospitals of the city of Nasiriyah. The study began in the period from May 15, 2022 to 1 November, 2022. The non-probability (purposive) sample consisted of (410) nurses working in the city center hospitals. Nasiriyah, they were chosen based on the study criteria, and after obtaining approval from them. The data was collected using the questionnaire, which consists of the first axis: social and demographic data: which consists of demographic information, consisted of (4) items and (16) sub-items which included items (age, gender, level of education and experience) those items that were classified and graded as choosing an appropriate answer. The second axis: information related to the impact that nurses are exposed to while working in your organization. The third axis is information related to the nurses' work performance in the work environment.

Results: The association between work environment hazards and nurse performance (continuation 1) showed a strong positive relationship (when the nurse is satisfied with her environment, there is an increase in her performance).

Conclusion: Our study revealed that there are factors in the nursing work environment such as the risks of the physical environment, factors psychosocial environment, and the factors of chemical and factors of biological environment that have a significant positive or negative effect on the performance of nurses' work.

Recommendations: The work environment can be monitored and improved to maintain the health of nurses working in Nasiriyah city hospitals. Nurses working in Nasiriyah city hospitals can also be provided with information about maintaining a healthy condition and a safe work environment. Regular medical examinations should also be initiated for nurses to maintain their health and protect them from risks environmental potential.
Assessment of Old Age behaviors toward Cardiovascular Health Promotion
Authors: Ali Hawraa
Published: July 2023

Abstract:

Objective: To assess old age behaviors toward cardiovascular health promotion. Find out the association between old age behaviors toward cardiovascular health promotion with certain sociodemographic characteristic and type of geriatric home.

Methodology:  A descriptive study is conducted throughout the period of (April 12th 2022 to august 22nd, 2023) presented to assess of old age behaviors toward cardiovascular health promotion. Purposive sample of (140) old age were selected from males and female’s participants from public and private Geriatric Homes at Baghdad city questionnaire validity the instrument was presented to 16 experts in various fields of nursing to make it more valid. The internal consist reliability determine by Cronbach Alpha correlation which was r=0.93 for behaviors of health promotion.

Results: Indicates that There is a difference in elderly health promotion behaviors among those in public and private homes and that is because of the levels of health care services and health supervision in these geriatric homes. Demographic data and general health statues among elderly in geriatric homes present an impact upon their behaviors toward CVD health promotion and there is significant difference between them according to their demographic data and health statues, type of home, of age, gender, monthly income, level of education, chronic disease).

Conclusion: Concluded that the majority of studied elderly is practicing moderate behavior regarding CVD health promotion.

Recommendation: Carrying out other studies on and healthy lifestyles behaviors for elderly who have low education level. Create a curriculum for small group counselling that will educate elderly about the importance of a healthy behaviors and positive attitude and relationship with having CVD.

Key words- Assessment, Behavior, cardiovascular health promotion
Buyback of Shares in the Indian Scenario
Authors: Sornaganesh V. , Chellamma A. V. , Annes Ragnal D.
Published: July 2023

A buyback occurs when the issuing company pays shareholders the market value per share and re-absorbs that portion of its ownership that was previously distributed among public and private investors. In recent decades, share buybacks have overtaken dividends as a preferred way to return cash to shareholders. The present study attempted to know why the company chosee buyback shares. This study aims at identifying the various methods of buyback shares and analysing the buyback shares in eastern countries. This study also analyzes the buyback scenario of the Indian capital market.