bluuebunny/crossref_metadata_2025_split huggingface dataset:
Kandungan Logam (Pb) pada Air, Sedimen, dan Jaringan Lunak Kerang Darah (Anadara granosa) di Perairan Bandengan, Kabupaten Kendal Serta Batas Aman Konsumsi untuk Manusia
Authors: Fernandes Arya , Santoso Adi , Widowati Ita 
Published: February 2023

Kegiatan pembangunan industri yang berkembang cukup pesat di kawasan industri Kabupaten Kendal diduga menjadi penyebab meningkatnya limbah buangan industri yang didalamnya terkandung logam berat timbal (Pb), sehingga limbah tersebut berkontribusi menurunkan kualitas perairan Bandengan, Kabupaten Kendal. Penelitian ini dilakukan dengan tujuan untuk mengetahui kadar logam (Pb) pada air, sedimen, dan kerang darah (A. granosa) serta batas maksimal konsumsi mingguan kerang darah (A. granosa) yang mengandung logam timbal (Pb) di Perairan Bandengan, Kabupaten Kendal. Penelitian ini dilaksanakan pada bulan Maret dan April 2022. Metode penelitian yang digunakan yaitu metode deksriptif sedangkan penentuan lokasi penelitian dengan metode purposive sampling. Analisis konsentrasi logam berat Pb dilakukan di Laboratorium Balai Besar Teknologi Pencegahan Pencemaran Industri (BBTPPI) dengan metode AAS (Atomic Absorption Spectrophotometry), sedangkan untuk analisis batas aman konsumsi mingguan dihitung dengan MTI (Maximum Tolerable Intake). Hasil penelitian ditemukan konsentrasi logam Pb di perairan Bandengan sebesar <0,003 mg/l, sedimen berkisar 15,32-24,21 mg/kg, dan kerang darah berkisar 0,209-0,731 mg/kg. Berat maksimal mengkonsumsi kerang darah (A. granosa) perminggu dari perairan Bandengan, Kabupaten Kendal individu dengan berat badan 60 kg sebesar 2,051-7,177 kg/minggu. Sedangkan, individu dengan berat 45 kg yaitu 1,538-5,382 kg/minggu. Industrial development activities have been developing quite rapidly in the Kendal Regency industrial area and are suspected to be the cause of the increase in the waste containing lead (Pb) heavy metal. It might contribute to reducing the quality of Bandengan waters. This study was to know the levels of metal (Pb) in water, sediment, and blood cockles (A. granosa) and the maximum weekly consumption of the cockles containing lead (Pb) in the waters. The study conducted in March and April 2022 used the descriptive method and purposive sampling to determine the locations. Analysis of Pb concentration was at the Laboratory of the Center for Industrial Pollution Prevention Technology (BBTPPI) using the AAS (Atomic Absorption Spectrophotometry) method. The analysis of the safe limit for weekly consumption was using the formula of MTI (Maximum Tolerable Intake). The results showed that Pb concentrations in water, sediment, and tissue in Bandengan waters were <0.003 mg/l, 15.32 - 24.21 mg/kg, and 0.209 - 0.731 mg/kg, respectively. The maximum weight of consuming blood cockles (A. granosa) per week from Bandengan waters, Kendal Regency of 60 kg individuals weighing was 2,051 - 7,177 kg/week. Meanwhile, individuals weighing 45 kg were 1,538 - 5.382 kg/week.
Kesesuaian dan Daya Dukung Kawasan Wisata Pantai Tilalohe, Batudaa Pantai, Kabupaten Gorontalo
Authors: Panigoro Citra , Paramata Arfiani Rizki , Kasim Faizal , Akase Maharani Nurul Fadila 
Published: February 2023

Memanfaatkan lahan dan sumber daya alam untuk tujuan ekowisata membutuhkan desain yang terkait dengan kesesuaian atraksi dan daya dukung wilayahnya. Penelitian ini bertujuan untuk menilai kesesuaian alokasi lahan kawasan dan daya dukungnya untuk kegiatan pariwisata di wilayah Pantai Tilalohe. Metode penelitian terdiri dari metode survei untuk kondisi bio-fisik dan penelitian literatur untuk karakteristik area pantai Tilalohe, serta kesesuaian dan daya dukung wilayah sebagai tujuan wisata. Hasilnya menunjukkan bahwa pantai Tilalohe secara geomorfologis memiliki karakteristik pantai saku. Jenis atraksi yang paling cocok adalah duduk dengan santai di semua stasiun pada lahan utama dengan luas 1315,45 m2 dengan garis pantai di sepanjang 114,84 m. Perairan di depan tanah utama, dengan luas 5965,20 m2 dan garis pantai 182,79 m, sangat mendukung pengunjung untuk kegiatan mandi dan berenang di wilayah timur. Studi ini menunjukkan peran penting analisis kesesuaian dan daya dukung untuk arahan peruntukan lahan untuk kegiatan ekowisata berdasarkan prinsip-prinsip perlindungan lingkungan dan keberlanjutan manfaat. Utilizing land and natural resources for ecotourism purposes requires a design related to the suitability of the attractions and its region's carrying capacity. This study aims to assess the suitability of the region's land allocation and its carrying capacity for tourism activities in the Tilalohe Beach area. The research method consists of survey methods for bio-physical conditions and literature research for the characteristics of the Tilalohe Beach area, as well as the suitability and carrying capacity of the region as a tourist destination. The results show that geomorphologically Tilalohe beach has characteristics of a pocket beach. The most suitable attraction is sitting casually at all stations on the main land with an area of 1315.45 m2 with coastlines along 114.84 m. This study shows an essential role of analysis of the suitability and carrying capacity of the area in the direction of land allotment for ecotourism activities based on the principles of environmental protection and the sustainability of benefits.
Uji Ekstrak Spons Laut Jenis Ptilocaulis marquezii dari Perairan Kendit sebagai Potensi Antibakteri Escherichia coli
Authors: Maisaroh Dian Sari , Al Hanif Yahya Abdillah , Munir Misbakhul , Sa'adah Nor 
Published: February 2023

Guna mengetahui potensi bioaktivitas senyawa yang terkandung serta mengetahui uji ekstrak spons Ptilocaulis marquezii terhadap pertumbuhan bakteri Eschercia coli. Penelitian dilakukan secara eksperimen berupa uji ekstrak berupa pembuatan ekstrak spons Ptilocaulis marquezii dengan maserasi serta evaporasi dengan rotary vacuum evaporator pada suhu 40°C hingga ekstrak terbentuk. Dilakukan pengujian dengan metode Difusi cakram atau Kirby-Bauer test. Pengujian fitokimia guna mengetahui kandungan senyawa aktif. Hasil yang diperoleh didapatkan ekstrak dengan konsentrasi 40% yang memiliki kemampuan sedang. Pada uji fitokimia mengandung alkoloid dan triptenoid. Ekstrak spons Ptilocaulis marquezii pada konsentrasi 40% dengan zona hambat sebesar 9.5 mm dalam kategori sedang dan pada konsentrasi lainnya yaitu 10%, 20%, 60% dan 80% berkategori lemah. Senyawa alkaloid menghambat pertumbuhan Escherichia Coli dengan merusak susunan peptidoglycan. Pada senyawa triterpenoid merusak membran plasma pada bakteri Escherichia coli. Knowing the potential bioactivity of the compounds contained and knowing the test of the extract of the Ptilocaulis marquezii sponge of Eschercia coli bacteria. The research was carried out experimentally in the form of extract testing in the form of making Ptilocaulis marquezii sponge extract by maceration and evaporation with a rotary vacuum evaporator at a temperature of 40°C until the extract was formed. The test was carried out using the disc diffusion method or the Kirby-Bauer test. Phytochemical testing to determine the content of active compounds. The results obtained were extracts with a concentration of 40% which had moderate abilities. The phytochemical test contains alkaloids and triptenoids. Ptilocaulis marquezii sponge extract at a concentration of 40% with an inhibition zone of 9.5 mm in the medium category and at other concentrations of 10%, 20%, 60% and 80% in the weak category. Alkaloids inhibit the growth of Escherichia Coli by destroying the peptidoglycan structure. The triterpenoid compounds damage the plasma membrane of Escherichia coli bacteria.
A Carleman inequality on product manifolds and applications to rigidity problems
Authors: Sun Ao 
Published: February 2023

Abstract
In this article, we prove a Carleman inequality on a product manifold

M
×
R

M\times {\mathbb{R}}

. As applications, we prove that (1) a periodic harmonic function on

R

2

{{\mathbb{R}}}^{2}

that decays faster than all exponential rate in one direction must be constant 0, (2) a periodic minimal hypersurface in

R

3

{{\mathbb{R}}}^{3}

that has an end asymptotic to a hyperplane faster than all exponential rate in one direction must be a hyperplane, and (3) a periodic translator in

R

3

{{\mathbb{R}}}^{3}

that has an end asymptotic to a hyperplane faster than all exponential rates in one direction must be a translating hyperplane.
Exergy analyses of two and three stage cryogenic cycles
Authors: Atasbak Musa , Keven Arzu , Karaali Rabi 
Published: February 2023

Abstract
Cryogenics has an important influence on industry and science. In this study, optimum working conditions are obtained by applying exergy analysis and local optimization methods to two- and three-stage vapor compression cascade cryogenic cycle. The first and second laws of thermodynamics, exergy analysis, and local optimization methods are applied to the two- and three-stage cascade cryogenic cycle. By considering the needs and demands, it is possible to create new cycles by adding new devices and/or new stages to these cycles. The results of the optimum operating conditions are obtained for the two- and three-stage vapor compression cascade cryogenic cycle. It is seen that to achieve high COP values and high efficiency; it is necessary to reduce the compression ratio of the compressor as much as the fluid allows. For the two-stage cycle, the minimum total work required for cryogenic cooling is around P
7 = 2,400 kPa. The COP value is 0.30 between P
7 = 2,400 and 2,800 kPa, and the maximum exergy efficiency is obtained around 0.235. It is seen operating the first-stage compressor at high pressures increases the total losses of the entire cycle from 7,500 to 18,550 kW. The increase in total exergy losses is around 247%, and operating the first-stage compressor at high pressures increases the exergy efficiency of the entire cycle. The increase in total exergy efficiency is around 160%. When the second-stage compressor is operated at low pressure, the COP value increases by 2%, the exergy efficiency increases by 20%, and the exergy losses decrease by around 40%.
Data sharpening and linguistic theorizing: a case study of the causative derivation of Urdu change-of-state verbs
Authors: Sharif Ahmad Naveed 
Published: February 2023

Abstract
This study examines the evidential value of corpus and introspective data from the perspective of morphological operations involved in the causative derivation of Urdu change-of-state verbs. By analyzing multi-source data on the transitivity status of causative variants of 112 Urdu verbs, it discovers a crucial relation between the type of evidence and the aspect of linguistic competence it addresses. More specifically, it compares data from lexical translation, Urdu WordNet and Urdu Lughat on the one hand, and data from a judgment task coupled with dialogical introspection on the other hand, and finds that the former can reveal the gradient nature of morphological productivity, but not its dynamic nature; the latter, however, can help explore the dynamic nature of productivity in the causative alternation. Such an observation confirms that both corpus and introspection complement each other, and that a particular source-specific piece of evidence may limit the coverage and generality of analysis. Thus, the study shows the importance of sharpening data by multi-source evidence for examining how various components of a phenomenon interrelate in the context of the overall grammatical organization of a language.
Ukraine and singular optics
Authors: Berry Michael 
Published: February 2023

Abstract
The mostly theoretical viewpoint, in which light is understood in terms of its singularities – caustics, phase vortices and lines of circular and linear polarisation – was developed in Bristol in the 1970s and 1980s. Starting in the 1990s, research by physicists in Ukraine, principally by Marat Soskin, stimulated the development of ‘singular optics’ as a thriving area of experimental and theoretical physics worldwide.
Optimization of information acquisition security of broadband carrier communication based on linear equation
Authors: Peng Liye , Liu Qing , Lyu Xiaohua 
Published: February 2023

Abstract
In order to study the optimization of information acquisition security of broadband carrier communication and solve the problem of low baud rate of data acquisition in traditional communication operation data acquisition systems, this article reconstructs the required arrangement of communication operation data signals in the acquisition path by taking broadband carrier communication in the station area as an example through the linear equation method of genetic algorithm. The baud rate of the designed acquisition system is significantly higher than that of the control group, and the acquisition accuracy is 100% by using phase shift key modulation and high carrier frequency. It can solve the problem of low baud rate of data acquisition in traditional communication operation data acquisition systems and improve the security of information acquisition. The security (loss, anti-interference) of broadband carrier communication information collection based on the improved legacy algorithm is better than that of the traditional genetic algorithm, indicating that the security of broadband carrier communication information collection based on the improved legacy algorithm does not increase with the number of iterations and decrease.
Ἔν τινι εἶναι als Hintergrund der paulinischen Rede vom Sein ‚in Christus‘
Authors: Beyer Barbara 
Published: February 2023

Abstract
Paul’s ἐν Χριστῷ phrases have long caused much investigation among scholars, yet no consensus has been reached as to what they mean and how the apostle came to speak of the relationship between believers and Christ in this way. This brief survey shows that the philological background of Paul’s “being in Christ” phrases lies in the largely analogous Greek phrase ἔν τινι εἶναι which expresses dependency of something or someone on something or someone else. Various passages from the archaic up until the imperial period that have received no attention so far demonstrate this. In Paul, the concept of dependency in connection with ἐν Χριστῷ phrases particularly comes to play in Rom 1–8.
Bewertungsmodell zur proaktiven Produktionssteuerung im Schiffsbau
Authors: Janke Tim , Schäfer Niklas , Böttger Kathrin 
Published: February 2023

Abstract
Der Wettbewerbsdruck auf deutsche Werfen steigt durch ausländische Konkurrenz stetig. In der für den Spezialschiffsbau typischen Einzelfertigung liegen Kostenpotenziale insbesondere in der Verbesserung der Produktionssteuerung. Dazu wird in diesem Beitrag ein systematischer Ansatz zur proaktiven Produktionssteuerung im Schiffsbau vorgestellt, der Werften helfen soll, Entscheidungen datenbasiert zu treffen und somit Durchlaufzeiten und Kosten zu senken.
SPTing across condensates: SEC‐mediated translocation of SPT complex from pausing condensates to elongation condensates
Authors: Rawat Prashant , Sawarkar Ritwick 
Published: February 2023

AbstractSeveral independent studies in the last few years have suggested that phase separation and biomolecular condensation play a critical role in regulating different transcription steps from initiation to pausing and elongation. However, how components of the transcription machinery translocate among different types of condensates during transcription remains poorly understood. Guo et al have now identified a potential mechanism underlying translocation of the DSIF complex from pausing to elongation condensates during promoter pause release, as reported in this issue of EMBO reports.
A review of producing hard coatings by means of duplex treatments using an electroplated coating-thermochemical treatment combination
Authors: Cifuentes Aya Héctor , Olaya Flórez Jhon Jairo 
Published: February 2023

Duplex treatments have been developed to overcome the disadvantages presented by simple treatments to surfaces of different materials and have, in a combined and complementary way, the properties that each of these methods supplies individually. The difference between thermal expansion coefficients for Fe and Cr in hard chrome plating leads to crack formation in the deposited coat, through which corrosive agents migrate and reduce the system's integrity. Direct deposition by physical vapour deposition (PVD), used for obtaining chromium nitride films on steel substrates, is limited by high production costs, the low thickness obtained and low resistance to corrosion due to the presence of micro pores. Some studies have combined an electroplated chromium with thermochemical treatments made in a controlled atmosphere or vacuum furnaces or by plasma. This kind of duplex treatment allows compounds such as CrxN, CrxCyN and CrxCy to be obtained from chemical and micro structural transformation of chromium with nitrogen and/or carbon, the sealing of cracks in the coating and increasing the magnitude of properties like hardness and density, improving wear and abrasion and corrosion resistance.
Ultrafiltration and osmotic evaporation applied to the concentration of cholupa (Passiflora maliformis) juice
Authors: Forero Longas Freddy , Vélez Pasos Carlos Antonio , Sandoval Aldana Angelica 
Published: February 2023

Cholupa it's an exotic fruit that has excellent organoleptic characteristics but highly sensitive to thermal treatments. Fruit was harvested in commercial fields and for each process stage, the following physicochemical parameters were analyzed: soluble solids, pH, total solids, viscosity, and turbidity. Was used a Pellicon2® ultrafiltration system (10 kDa) with flat membranes and filtration area 0.5 m2, osmotic evaporator had a polypropylene hydrophobic hollow fiber module MD020CP2N® with area 0.104 m2. Prior to ultrafiltration, in order to obtain a higher permeate flow, juice was subjected to enzymatic treatment with commercial mixtures, found that doses of Maxoliva® (50 µl/100g) and Rapidase® (40 µl/100g) are best treatment, which had a significant effect (P<0.05) reducing the viscosity and increase soluble solids; in clarification process by ultrafiltration, permeate flux rate has a behavior that fulfills Darcy law, with 19.4 and 6.0 l m-2 h-1, as maximum and minimum, respectively. Finally, osmotic evaporation process produce a concentrate of 65.15±0.36 oBrix with homogeneous appearance, dark yellow color, which when it's reconstituted dissolves easily in water. The results show that ultrafiltration and osmotic evaporation proved to be effective and synergistic technologies to get a good quality concentrate, that preserve much original characteristics of juice. This is the first work reported about cholupa juice processing.
Le visite canoniche della diocesi di Nitra
Authors: Bošanský Martin 
Published: February 2023

The canonical visitation became one of the most important instruments of the Tridentine renewal. This study presents the canonical visitations made in the Diocese of Nitra – examining their final reports that represent historical resources of great value. It offers a summary of all the visitations – both partial and comprehensive ones – since 1674, when the first visitation recorded in written form was made, up to the present day – describing their circumstances, ways of realization, as well as their findings. It analyzes the pattern and the structure of every final report. It also examines the feasibility of their investigation and other studies accomplished in the past. Finally, it offers the evaluation of the canonical visitations from the point of view of their contribution to the renewal of the diocese.
Staropolskie piśmiennictwo sanktuaryjne jako źródło do badań nad kultem maryjnym na ziemiach Rzeczypospolitej
Authors: Nastalska-Wiśnicka Joanna 
Published: February 2023

The article features the wealth of forms and contents of prints conventionally called “sanctuary prints”. These include compendia which are the guides to sacred places of the Polish Republic, peregrination literature, occasional prints (e.g. published on the occasion of the coronation of a miraculous image), homiletic forms (texts of sermons preached during the Marian holidays, image translation or coronation), the stories of sacred places and legends related to them, collections of miracles and graces, prayer books and texts of songs intended for the pilgrims. Interpretation possibilities of this type of texts were indicated. The presence of the Virgin Mary in a notional sphere of elites and masses identified clearly and permanently her place in Polish religiosity and the Marian cult has found particular expression in growing from the half of the 16th century, the adoration of the Marian images. Important from this perspective studies tend to portray multiple cultural phenomena available through the external manifestations of worship presented in the source material.
Historia misji chrześcijańskich w źródłach – wybrane inicjatywy edytorskie ostatnich dziesięcioleci oraz dalsze perspektywy badawcze
Authors: Zając Paweł 
Published: February 2023

The study of the sources related to the history of missions has evolved methodologically over the past decades and has attracted growing interest of scholars both related and unrelated to missionary institutions. The article attempts at an overview of chosen contemporary editorial projects, among them some anthologies presenting history of missions from various broad perspectives – e.g. theological, institutional (documents published by the authorities of the Catholic Church) or that of global Christianity. Subsequently attention is paid to more particular subjects – histories of individual missionaries or given missionary regions, etc. Finally the study focuses on examples of important contributions aimed at systematic presentation of the whole archives conserving important missionary sources.
La autoeficacia como fase esencial en el desarrollo de los procesos de planificación y desarrollo cognitivo
Authors: Hernández - Rodríguez María Elvira , Moreno - Beltrán Rosa Elena , Cagua - Rodríguez Leidy Juliany , Mahecha - Escobar Jenny Consuelo , Mejía-Loaiza Elquin Eduar 
Published: February 2023

El presente artículo presenta un análisis del papel de la autoeficacia en los procesos de planificación de la tarea y el desarrollo cognitivo en estudiantes colombianos de educación media. El estudio vinculó a estudiantes y profesores de diez instituciones rurales y urbanas de distintas regiones. Se utilizó la metodología mixta y se determinó un alcance exploratorio y descriptivo; se usaron dos instrumentos de recolección de datos: un cuestionario a estudiantes y una entrevista semiestructurada a docentes y estudiantes, dichas entrevistas aplicadas a través de grupos focales.
Entre los resultados más importantes se destaca el autoconcepto positivo del estudiante como un aspecto fundamental a la hora de enfrentar la tarea; la convicción sobre sus capacidades genera un impacto importante en su motivación y empoderamiento activo frente a los procesos de análisis y planificación de cada una de sus actividades académicas, lo que repercute de manera muy positiva en su desarrollo cognitivo. Se evidenció que, cuando los aprendices conocen las capacidades que tienen al enfrentarse a una actividad, crece su concepto de autoeficacia y, por lo tanto, su motivación y autorregulación, con lo que pueden establecer el rumbo y las estrategias que mejor convengan para el alcance de sus objetivos de aprendizaje.