bluuebunny/crossref_metadata_2025 huggingface dataset:
Synergies and Trade-Offs in the Sustainable Development Goals—The Implications of the Icelandic Tourism Sector
Authors: Cook David , Saviolidis Nína , Davíðsdóttir Brynhildur , Jóhannsdóttir Lára , Ólafsson Snjólfur
Published: August 2019

The development of major economic sectors can provide the bedrock on which long-lasting national economic prosperity is formed. Iceland’s tourism sector is an example of a rapidly expanded industry in recent years, to the extent that it has become the largest sectoral contributor to the nation’s economy. The growth of the sector has led to a number of sustainability impacts, thus presenting opportunities and challenges in terms of meeting the 17 Sustainable Development Goals (SDGs) of the United Nations. Using the case study of Iceland, this paper aims to advance the conceptual understanding of the synergies and trade-offs between a nation’s tourism sector and performance across the 169 targets of the SDGs. Empirical results were derived from four theme-based focus groups comprised of expert participants, who were tasked with completing scoresheets concerning their perception of the extent of synergies and trade-offs for each target. The majority (126 in number) of the mean scoresheet outcomes for the SDG targets revealed neither synergies nor trade-offs. However, 32 synergies and 11 trade-offs were identified. Many of the target synergies related to new economic opportunities, such as jobs, employment, and training for young people. Target trade-offs tended to be environmental and social. In particular, concern was voiced about the greenhouse gas emissions of the Icelandic tourism sector, which derives from international aviation, cruise ships, and rental car usage. The outcomes of this study are of particular relevance to tourism companies, policy-makers, and governance institutions, all of whom are increasingly endeavouring to link their activities with the fulfilment of the SDGs, maximising synergies, mitigating the extent of any potential trade-offs, and potentially transforming trade-offs into synergies. Furthermore, the results are likely of interest to academics focused on researching the broad sustainability impacts of economic sectors and their contribution to meeting the visionary goals of the SDGs.
The Economics of Arundo donax—A Systematic Literature Review
Authors: Jámbor Attila , Török Áron
Published: August 2019

Arundo donax (giant reed) is an herbaceous, perennial and non-food crop producing dry biomass with relatively high yields in many regions and under different climates. Although there exists a large amount of literature on A. donax, the economic aspects are somehow neglected or are very much limited in most papers. Therefore, the aim of this paper is to analyse the economics of A. donax by applying a systematic literature review of the field. Our sample consists of 68 relevant studies out of the 6009 identified, classified into four groups: Bioenergy, agronomy, invasiveness and phytoremediation. Most papers were focusing on Italy and on the Mediterranean region and were written on the bioenergy aspect. Most studies suggest that A. donax has a relatively high energy balance and yields, high investment but low maintenance costs and high potentials for phytoremediation of contaminated soils. However, a certain section of the literature, mainly based on US experience, shows that giant reed should be produced with care due to its invasiveness hazard. On the whole, A. donax was found to have high economic potentials for biomass production in marginal as well as disadvantageous lands operated by small farmers in the Mediterranean region.
The Discourse on Sustainable Urban Tourism: The Need for Discussing More Than Overtourism
Authors: Aall Carlo , Koens Ko
Published: August 2019

The journal Sustainability has previously published special issues on sustainable tourism and on sustainable cities (both in 2014). This special issue presents recent insights from combining the two research topics. There is some convergence with respect to core challenges that sustainable urban tourism is facing. Firstly, relating to social sustainable development, there is the tension between the quality of life for residents in different ways and the development of cities to benefit the tourism industry. Secondly, relating to environmental sustainable development, there is the tension between residents and their desire for good local environmental standards and visiting tourists that create a number of over-tourism related local environmental problems. Thirdly, there are the challenges that so far have received less attention, but obviously are expected to become crucial in the years to come: The double climate change provides risks to cities from a changing climate and from more ambitious climate policies to come.
Managing Marketing Decision-Making with Sentiment Analysis: An Evaluation of the Main Product Features Using Text Data Mining
Authors: Kauffmann Erick , Peral Jesús , Gil David , Ferrández Antonio , Sellers Ricardo , Mora Higinio
Published: August 2019

Companies have realized the importance of “big data” in creating a sustainable competitive advantage, and user-generated content (UGC) represents one of big data’s most important sources. From blogs to social media and online reviews, consumers generate a huge amount of brand-related information that has a decisive potential business value for marketing purposes. Particularly, we focus on online reviews that could have an influence on brand image and positioning. Within this context, and using the usual quantitative star score ratings, a recent stream of research has employed sentiment analysis (SA) tools to examine the textual content of reviews and categorize buyer opinions. Although many SA tools split comments into negative or positive, a review can contain phrases with different polarities because the user can have different sentiments about each feature of the product. Finding the polarity of each feature can be interesting for product managers and brand management. In this paper, we present a general framework that uses natural language processing (NLP) techniques, including sentiment analysis, text data mining, and clustering techniques, to obtain new scores based on consumer sentiments for different product features. The main contribution of our proposal is the combination of price and the aforementioned scores to define a new global score for the product, which allows us to obtain a ranking according to product features. Furthermore, the products can be classified according to their positive, neutral, or negative features (visualized on dashboards), helping consumers with their sustainable purchasing behavior. We proved the validity of our approach in a case study using big data extracted from Amazon online reviews (specifically cell phones), obtaining satisfactory and promising results. After the experimentation, we could conclude that our work is able to improve recommender systems by using positive, neutral, and negative customer opinions and by classifying customers based on their comments.
Numerical Simulation of a Multiscale Cell Motility Model Based on the Kinetic Theory of Active Particles
Authors: Knopoff Damián A. , Nieto Juanjo , Urrutia Luis
Published: August 2019

In this work, we deal with a kinetic model of cell movement that takes into consideration the structure of the extracellular matrix, considering cell membrane reactions, haptotaxis, and chemotaxis, which plays a key role in a number of biological processes such as wound healing and tumor cell invasion. The modeling is performed at a microscopic scale, and then, a scaling limit is performed to derive the macroscopic model. We run some selected numerical experiments aimed at understanding cell movement and adhesion under certain documented situations, and we measure the alignment of the cells and compare it with the pathways determined by the extracellular matrix by introducing new alignment operators.
Applications of Canonical Quantum Gravity to Cosmology
Authors: Gerhardt Claus
Published: August 2019

We applied quantum gravitational results to spatially unbounded Friedmann universes and tried to answer some questions related to dark energy, dark matter, inflation, and the missing antimatter.
Quasi-Noether Systems and Quasi-Lagrangians
Authors: Rosenhaus V. , Shankar Ravi
Published: August 2019

We study differential systems for which it is possible to establish a correspondence between symmetries and conservation laws based on Noether identity: quasi-Noether systems. We analyze Noether identity and show that it leads to the same conservation laws as Lagrange (Green–Lagrange) identity. We discuss quasi-Noether systems, and some of their properties, and generate classes of quasi-Noether differential equations of the second order. We next introduce a more general version of quasi-Lagrangians which allows us to extend Noether theorem. Here, variational symmetries are only sub-symmetries, not true symmetries. We finally introduce the critical point condition for evolution equations with a conserved integral, demonstrate examples of its compatibility, and compare the invariant submanifolds of quasi-Lagrangian systems with those of Hamiltonian systems.
Stress-Strain Response Determination during Incremental Step Tests and Variable Loadings on Flat Specimens
Authors: Šeruga Domen , Nagode Marko , Klemenc Jernej
Published: August 2019

For stress-strain response simulations and damage prediction of cyclically loaded mechanical components, it is crucial to determine both the stress-strain and durability curves of the materials sued. Round and flat specimens can be used for this purpose, either following standard recommendations for their geometry or by designing a special geometry which enables special requirements, such as initial cracks of various shapes, attachment of an extensometer, special grips for raised temperatures, and so on. However, especially in the case of flat specimens having a slender shape, buckling can occur before the stress or strain values reach a sufficient magnitude in compression. To avoid this, an anti-buckling support can be attached to the specimen, which prevents the occurrence of buckling. In turn, friction occurs between the specimen and the anti-buckling support, which affects the measurement of the stress. If a special sensor is attached under the anti-buckling support, the friction force can be measured and subtracted from the stress signal, leaving only the stress-strain response of the material under investigation. In this study, two materials were investigated during incremental step and variable loading tests: The aluminium alloy AlMgSi0.5 and a biodegradable polylactide.
Diagnosing Microcystin Intoxication of Canines: Clinicopathological Indications, Pathological Characteristics, and Analytical Detection in Postmortem and Antemortem Samples
Authors: Foss Amanda J. , Aubel Mark T. , Gallagher Brandi , Mettee Nancy , Miller Amanda , Fogelson Susan B.
Published: August 2019

In the summer of 2018, six dogs exposed to a harmful algal bloom (HAB) of Microcystis in Martin County Florida (USA) developed clinicopathological signs of microcystin (MC) intoxication (i.e., acute vomiting, diarrhea, severe thrombocytopenia, elevated alanine aminotransferase, hemorrhage). Successful supportive veterinary care was provided and led to survival of all but one patient. Confirmation of MC intoxication was made through interpretation of clinicopathological abnormalities, pathological examination of tissues, microscopy (vomitus), and analytical MC testing of antemortem/postmortem samples (vomitus, blood, urine, bile, liver, kidney, hair). Gross and microscopic examination of the deceased patient confirmed massive hepatic necrosis, mild multifocal renal tubular necrosis, and hemorrhage within multiple organ systems. Microscopy of a vomitus sample confirmed the presence of Microcystis. Three analytical MC testing approaches were used, including the MMPB (2-methyl-3-methoxy-4-phenylbutyric acid) technique, targeted congener analysis (e.g., liquid chromatography tandem-mass spectrometry of MC-LR), and enzyme-linked immunosorbent assay (ELISA). Total Adda MCs (as MMPB) were confirmed in the liver, bile, kidney, urine, and blood of the deceased dog. Urinalysis (MMPB) of one surviving dog showed a high level of MCs (32,000 ng mL−1) 1-day post exposure, with MCs detectable >2 months post exposure. Furthermore, hair from a surviving dog was positive for MMPB, illustrating another testable route of MC elimination in canines. The described cases represent the first use of urine as an antemortem, non-invasive specimen to diagnose microcystin toxicosis. Antemortem diagnostic testing to confirm MC intoxication cases, whether acute or chronic, is crucial for providing optimal supportive care and mitigating MC exposure.
Mechanisms of Botulinum Toxin Type A Action on Pain
Authors: Matak Ivica , Bölcskei Kata , Bach-Rojecky Lidija , Helyes Zsuzsanna
Published: August 2019

Already a well-established treatment for different autonomic and movement disorders, the use of botulinum toxin type A (BoNT/A) in pain conditions is now continuously expanding. Currently, the only approved use of BoNT/A in relation to pain is the treatment of chronic migraines. However, controlled clinical studies show promising results in neuropathic and other chronic pain disorders. In comparison with other conventional and non-conventional analgesic drugs, the greatest advantages of BoNT/A use are its sustained effect after a single application and its safety. Its efficacy in certain therapy-resistant pain conditions is of special importance. Novel results in recent years has led to a better understanding of its actions, although further experimental and clinical research is warranted. Here, we summarize the effects contributing to these advantageous properties of BoNT/A in pain therapy, specific actions along the nociceptive pathway, consequences of its central activities, the molecular mechanisms of actions in neurons, and general pharmacokinetic parameters.
Aerosol Detection and Transmission of Porcine Reproductive and Respiratory Syndrome Virus (PRRSV): What Is the Evidence, and What Are the Knowledge Gaps?
Authors: Arruda Andréia Gonçalves , Tousignant Steve , Sanhueza Juan , Vilalta Carles , Poljak Zvonimir , Torremorell Montserrat , Alonso Carmen , Corzo Cesar A
Published: August 2019

In human and veterinary medicine, there have been multiple reports of pathogens being airborne under experimental and field conditions, highlighting the importance of this transmission route. These studies shed light on different aspects related to airborne transmission such as the capability of pathogens becoming airborne, the ability of pathogens to remain infectious while airborne, the role played by environmental conditions in pathogen dissemination, and pathogen strain as an interfering factor in airborne transmission. Data showing that airborne pathogens originating from an infectious individual or population can infect susceptible hosts are scarce, especially under field conditions. Furthermore, even though disease outbreak investigations have generated important information identifying potential ports of entry of pathogens into populations, these investigations do not necessarily yield clear answers on mechanisms by which pathogens have been introduced into populations. In swine, the aerosol transmission route gained popularity during the late 1990’s as suspicions of airborne transmission of porcine reproductive and respiratory syndrome virus (PRRSV) were growing. Several studies were conducted within the last 15 years contributing to the understanding of this transmission route; however, questions still remain. This paper reviews the current knowledge and identifies knowledge gaps related to PRRSV airborne transmission.
Genetic Variability of Chikungunya Virus in Southern Mexico
Authors: Galan-Huerta Kame A. , Zomosa-Signoret Viviana C. , Vidaltamayo Román , Caballero-Sosa Sandra , Fernández-Salas Ildefonso , Ramos-Jiménez Javier , Rivas-Estilla Ana M.
Published: August 2019

Chikungunya virus (CHIKV) is a mosquito-borne alphavirus that causes Chikungunya fever. CHIKV entered Mexico through the state of Chiapas in October 2014. To fully understand the Chikungunya fever outbreak that occurred in southern Chiapas during 2015, we evaluated 22 PCR-confirmed CHIKV-positive patients, identified CHIKV genetic variability, reconstructed viral dispersal, and assessed possible viral mutations. Viruses were isolated and E2, 6K, and E1 genes were sequenced. We applied phylogenetic and phylogeographic approaches, modeled mutations, and estimated selective pressure. Different CHIKV strains circulated in Chiapas during summer 2015. Three isolates grouped themselves in a well-supported clade. Estimates show that the outbreak started in Ciudad Hidalgo and posteriorly dispersed towards Tapachula and neighboring municipalities. We found six non-synonymous mutations in our isolates. Two mutations occurred in one isolate and the remaining mutations occurred in single isolates. Mutations E2 T116I and E2 K221R changed the protein surface in contact with the host cell receptors. We could not find positive selected sites in our CHIKV sequences from southern Chiapas. This is the first viral phylogeographic reconstruction in Mexico characterizing the CHIKV outbreak in southern Chiapas.
Usefulness of Eurasian Magpies (Pica pica) for West Nile virus Surveillance in Non-Endemic and Endemic Situations
Authors: Napp Sebastian , Montalvo Tomás , Piñol-Baena César , Gómez-Martín Maria Belén , Nicolás-Francisco Olga , Soler Mercè , Busquets Núria
Published: August 2019

In September 2017, passive surveillance allowed the detection of West Nile virus (WNV) lineage 2 for the first time in northern Spain in a northern goshawk (Accipiter gentilis). However, a cross sectional study carried out in Eurasian magpies (Pica pica) in a nearby area evidenced that WNV had been circulating two months earlier. Therefore, active surveillance in Eurasian magpies proved its effectiveness for the early detection of WNV in a non-endemic area. Further surveys in 2018 and the beginning of 2019 using young magpies (i.e., born after 2017) showed the repeated circulation of WNV in the same region in the following transmission season. Therefore, active surveillance in Eurasian magpies as well proved to be useful for the detection of WNV circulation in areas that may be considered as endemic. In this manuscript we present the results of those studies and discuss reasons that make the Eurasian magpies an ideal species for the surveillance of WNV, both in endemic and non-endemic areas.
A New National Water Quality Model to Evaluate the Effectiveness of Catchment Management Measures in England
Authors: Hankin Barry , Strömqvist Johan , Burgess Chris , Pers Charlotta , Bielby Sally , Revilla-Romero Beatriz , Pope Linda
Published: August 2019

This investigation reports on a new national model to evaluate the effectiveness of catchment sensitive farming in England, and how pollution mitigation measures have improved water quality between 2006 and 2016. An adapted HYPE (HYdrological Predictions for the Environment) model was written to use accurate farm emissions data so that the pathway impact could be accounted for in the land phase of transport. Farm emissions were apportioned into different runoff fractions simulated in surface and soil layers, and travel time and losses were taken into account. These were derived from the regulator’s ‘catchment change matrix’ and converted to monthly load time series, combined with extensive point source load datasets. Very large flow and water quality monitoring datasets were used to calibrate the model nationally for flow, nitrogen, phosphorus, suspended sediments and faecal indicator organisms. The model was simulated with and without estimated changes to farm emissions resulting from catchment measures, and spatial and temporal changes to water quality concentrations were then assessed.
The Role of Satellite-Based Remote Sensing in Improving Simulated Streamflow: A Review
Authors: Jiang Dejuan , Wang Kun
Published: August 2019

A hydrological model is a useful tool to study the effects of human activities and climate change on hydrology. Accordingly, the performance of hydrological modeling is vitally significant for hydrologic predictions. In watersheds with intense human activities, there are difficulties and uncertainties in model calibration and simulation. Alternative approaches, such as machine learning techniques and coupled models, can be used for streamflow predictions. However, these models also suffer from their respective limitations, especially when data are unavailable. Satellite-based remote sensing may provide a valuable contribution for hydrological predictions due to its wide coverage and increasing tempo-spatial resolutions. In this review, we provide an overview of the role of satellite-based remote sensing in streamflow simulation. First, difficulties in hydrological modeling over highly regulated basins are further discussed. Next, the performance of satellite-based remote sensing (e.g., remotely sensed data for precipitation, evapotranspiration, soil moisture, snow properties, terrestrial water storage change, land surface temperature, river width, etc.) in improving simulated streamflow is summarized. Then, the application of data assimilation for merging satellite-based remote sensing with a hydrological model is explored. Finally, a framework, using remotely sensed observations to improve streamflow predictions in highly regulated basins, is proposed for future studies. This review can be helpful to understand the effect of applying satellite-based remote sensing on hydrological modeling.
Enhancing the Ecological Value of Sea Dikes
Authors: Scheres Babette , Schüttrumpf Holger
Published: August 2019

Sea dikes protect low-lying hinterlands along many coasts all around the world. Commonly, they are designed as embankments with grass covers or grey revetments accounting for the prevailing hydraulic loads. So far, incorporation of ecological aspects in the dike design is limited. With regard to increasing environmental awareness and climate change adaptation needs, the present study reviews methods for ecological enhancement of sea dikes and discusses limitations and challenges related to these methods. In doing so, one key aspect is to maintain dike safety while increasing the ecological value. Potential for ecological enhancement of sea dikes has been found regarding natural or nature-based solutions in the foreshore, dike surface protection measures (vegetated dike covers, hard revetments and dike roads) and the dike geometry. While natural and nature-based solutions in the foreland are investigated thoroughly, so far only few experiences with ecological enhancements of the dike structure itself were gained resulting in uncertainties and knowledge gaps concerning the implementation and efficiency. Additional to technical uncertainties, engineers and ecologists meet the challenge of interdisciplinary collaboration under consideration of societal needs and expectations.
Wave-Induced Oscillatory Flow Over a Sloping Rippled Bed
Authors: Faraci Carla , Scandura Pietro , Petrotta Carmelo , Foti Enrico
Published: August 2019

In this paper, the findings of an experimental analysis aimed at investigating the flow generated by waves propagating over a fixed rippled bed within a wave flume are reported. The bottom of the wave flume was constituted by horizontal part followed by a 1:10 sloping beach. Bedforms were generated in a previous campaign performed with loose sand, and then hardened by means of thin layers of concrete. The flow was acquired through a Vectrino Profiler along two different ripples, one located in the horizontal part of the bed and the second over the sloping beach. It was observed that, on the horizontal bed, near the bottom, ripple lee side triggered the appearance of an onshore directed steady streaming, whereas ripple stoss side gave rise to an offshore directed steady streaming. On the sloping bed, a strong return current appears at all positions, interacting with the rippled bottom. The turbulence is non-negligible within the investigated water depth, particularly when velocities were onshore directed, due to flow asymmetry. Turbulence caused a considerable flow stirring which, above a non-cohesive bed, could lift the sediment up in the water column and give rise to a strong sediment transport.
Determining the Relation between Groundwater Flow Velocities and Measured Temperature Differences Using Active Heating-Distributed Temperature Sensing
Authors: Bakx Wiecher , Doornenbal Pieter J. , van Weesep Rebecca J. , Bense Victor F. , Oude Essink Gualbert H. P. , Bierkens Marc F. P.
Published: August 2019

Active Heating-Distributed Temperature Sensing (AH-DTS) has the potential to allow for the measurement of groundwater flow velocities in situ. We placed DTS fiber-optic cables combined with a heating wire in direct contact with aquifer sediments in a laboratory scale groundwater flow simulator. Using this setup, we empirically determined the relationship between Δ T , the temperature difference by constant and uniform heating of the DTS cable and the background temperature of the groundwater system, and horizontal groundwater flow velocity. Second, we simulated the observed temperature response of the system using a plan-view heat transfer flow model to calibrate for the thermal properties of the sediment and to optimize cable setup for sensitivity to variation in groundwater flow velocities. Additionally, we derived an analytical solution based on the heat flow equation that can be used to explicitly calculate flow velocity from measured Δ T for this specific AH-DTS cable setup. We expect that this equation, after calibration for cable constitution, is valid for estimating groundwater flow velocity based on absolute temperature differences measured in field applications using this cable setup.
PENGARUH DISTRIBUSI DAN PROMOSI TERHADAP PENDAPATAN PADA PT. PRINTIS PRIBADI USAHA PRIMA KECAMATAN RENGAT BARAT
Authors: Warnadi Warnadi
Published: August 2019

Penelitian ini dilakukan pada pada PT. Printis Pribadi Usaha Prima Kecamatan Rengat Barat. Pelaksanaan penelitian berlangsung selama5 (Lima) bulan. Objek penelitian ini adalah untuk mengetahui pengaruh apakah ada pengaruh yang signifikan antara distribusi dan promosi terhadap Pendapatan pada PT. Printis Pribadi Usaha Prima Kecamatan Rengat Barat. Penelitian dilakukan dengan metode kuantitatif, yaitu penelitian yang menggambarkan tentang apakah ada pengaruh yang signifikan antara distribusi dan promosi terhadap Pendapatan pada PT. Printis Pribadi Usaha Prima Kecamatan Rengat Barat Dengan menganalisis data menggunakan regresi berganda, koefisien korelasi, dan uji Hipotesis yang nantinya dibantu dengan menggunakan SPSS versi 17. Dari hasil penelitian dengan persamaan regresinya Y = 1,920 +0,440 X1 +0,092 X2. Artinya: a= jika distribusi dan promosi sama dengan Nol (0) maka besarnya nilai Pendapatansama dengan 1,920. b1= jika terjadi peningkatan 1 satuan pada distribusi maka akan terjadi peningkatan pada Pendapatan sebesar 0,440. dan b2 = jika terjadi peningkatan 1 satuan pada promosi maka akan terjadi peningkatan pada Pendapatan sebesar 0,092. Koefisien korelasi berganda R adalah 0,705. dan selanjutnya diuji dengan Keofisie determinasi berganda (R2 adalah 0,496. hal ini menunjukan bahwa (X1) distribusi dan (X2) promosi sudah bersama – sama adanya hubungan variasi terhadap (Y) Pendapatan sebesar 49,6 %. Dan sisanya 50,4 % di pengaruhi oleh variabel selain (X1) dan (X2).. Uji hipotesis pada taraf signifikan a = 5 % dimana F hitung (23,164) > F tabel (3,20) maka Ho ditolak dan Ha diterima. Berdasarkan nilai signifikan terlihat pada kolom sig yaitu 0,000 berarti probabilitas 0,000 lebih kecil dari pada 0,05.artinya memiliki
ANALISIS SEKTOR EKONOMI UNGGULAN DAERAH KABUPATEN INDRAGIRI HULU DENGAN PENDEKATAN LOCATION QUATION (LQ)
Authors: Triyono Aris
Published: August 2019

Kabupaten Indragiri Hulu merupakan Kabupaten induk sebelum adanya otonomi daerah dari Kabupaten Kuantan Singingi, Kabupaten Indaragiri Hulu, merupakan salah satu wilayah, memiliki sektor ekonomi unggulan yang sangat prospektif. Populasi Penelitian dalam penelitian adalah PDRB Kabupaten Indragiri Hulu dan PDRB Propinsi Riau, atas dasar hagra konstan tahun 2010. Dari tahun 2012-2016, Sampel penelitian PDRB Kabupaten Indragiri Hulu, PDRB Propinsi Riau atas harga konstan tahun 2012-2016. Tehnik pengambilan sampel purporsive sample. Metode pendekantan dalam menganalisis data dengan metode kualitatif dan kuantitatif, metode pengumpulan data yaitu dengan metode dokumentasi dan setudi pustaka. Metode analisis yang digunakan dengan menggunakan pendekatan Location Quation, Berdasarkan analisis Location Quation, Sektor-sektor yang potensial tahun 2012-2016, yang mempunyai nilai LQ>1, ada 12 sektor ekonomi, diantara 12 sektor ekonomi unggulan tersebut ada 4 sektor ekonomi yang relatif besar dalam pembentukan PDRB Kabupaten Indragiri Hulu yakni; Sektor Pengadaan Air, Pengelolaan Sampah, Limbah dan Daur Ulang, dengan nilai rata-rata LQ, 3.99, Sektor Penyediaan Akomodasi dan Makan Minum, dengan nilai rata-rata LQ, 1.70. Sektor Konstruksi, dengan nilai rata-rata LQ, 1.63. Sektor Jasa lainnya, dengan nilai rata-rata LQ, 1.52. Sektor-sektor ekonomi yang mempunyai nilai LQ kurang dari satu atau LQ<1, yaitu ada 4 sektor yaitu sektor pertambangan dan pengalian, dengan nilai rata-rata LQ, 0.53, Sektor Jasa perusahaan, dengan nilai rata-rata LQ, 0,67, Sektor pengadaan listrik dan gas, dengan nilai rata-rata LQ, 0,81. Dan Sektor informasi dan komunikasi, mempunyai rata-rata LQ, 0,84. Sektor ekonomi yang mempunyai nilai LQ sama dengan satu atau LQ=1 adalah sektor Administrasi Pemerintahan, Pertahanan dan Jaminan Sosial Wajib, dengan nilai rata-rata LQ, 1,01 atau 1. Sektor ini hanya mampu melayani pasar di Kabupaten Indragiri Hulu saja atau belum dapat memasarkan hasil sektor tersebut ke luar daerah lain. Dengan munculnya sektor ekonomi unggulan daerah akan berperan sebagai pendorong tumbuhnya perekonomian dan menambah pendapatan daerah Kabupaten Indragiri Hulu
PENGARUH SIMPANAN DAN PINJAMAN YANG DISALURKAN TERHADAP PENDAPATAN PADA SIMPAN PINJAM PEREMPUAN UNIT PENGELOLA KEGIATAN (SPP-UPK) LUFKIN KECAMATAN LIRIK KABUPATEN INDRAGIRI HULU
Authors: Fitrio Tomy
Published: August 2019

Penelitian ini bertujuan untuk mengetahui pengaruh Simpanan dan Pinjaman yang Disalurkan secara simultan terhadap Pendapatan Pada Simpan Pinjam Perempuan Unit Pengelola Kegiatan (SPP-UPK) Lufkin Kecamatan Lirik Kabupaten Indragiri Hulu. Teknik analisis data yang dipakai adalah analisis regresi linear berganda. Hasil penelitian ini menunjukkan bahwa: 1). Nilai Fhitung < Ftabel (0,013 < 19,00 ) atau Sig F > 5 % (0.987 > 0,05). Karena nilai signifikansi uji F lebih besar dari tingkat signifikan 0,05, dan Fhitung <Ftabel maka Ho diterima dan Hi ditolak, sehingga dapat diartikan bahwa secara simultan simpanan dan pinjaman yang disalurkan tidak berpengaruh signifikan terhadap pendapatan. 2). Hasil Uji t simpanan (X1) diperoleh nilai thitung<ttabel (0.137 < 3,182) maka secara parsial simpanan (X1) tidak berpengaruh signifikan terhadap pendapatan (Y) dan hasil Uji t antara variabel pinjaman yang disalurkan (X2) diperoleh nilai thitung<ttabel (-0,090<-3,182) maka secara parsial pinjaman yang disalurkan (X2) tidak berpengaruh signifikan terhadap pendapatan (Y). 3). Diperoleh angka R sebesar 0.113. Hal ini menunjukkan bahwa terdapat hubungan yang lemah antara simpanan dan pinjaman yang disalurkan terhadap pendapatan. Sedangkan berdasarkan tabel analisis di atas diperoleh angka R2 (R Square) atau disebut koefisien determinasi adalah sebesar 0.013 artinya 1.3%. menunjukkan persentase sumbangan pengaruh variabel independen (simpanan dan pinjaman yang disalurkan) terhadap variabel dependen (pendapatan) Atau variasi variabel independen yang digunakan dalam model (simpanan dan pinjaman yang disalurkan) mampu menjelaskan sebesar 1,3% dari variasi variabel dependen (pendapatan). Sedangkan sisanya sebesar 98,7% dipengaruhi atau dijelaskan oleh variabel lain yang tidak diteliti dalam penelitian ini.
PENGARUH KEPUASAN DAN KEPERCAYAAN TERHADAP LOYALITAS PELANGGAN PADA INDUSTRI KUE BAWANG BINA KARYA KECAMATAN RENGAT KABUPATEN INDRAGIRI HULU
Authors: Yulianda Airine
Published: August 2019

Penelitian ini dilakukan pada Industri Kue Bawang Bina Karya Rengat. Industri ini memproduksi keripik bawang sebagai makanan khas kota Rengat. Perumusan masalah yang akan diteliti adalah apakah kepuasan dan kepercayaan secara simultan berpengaruh terhadap loyalitas pelanggan, apakah kepuasan secara parsial berpengaruh terhadap loyalitas pelanggan dan apakah kepercayaan secara parsial berpengaruh terhadap loyalitas pelanggan pada Industri Kue Bawang di Rengat. Penelitian ini dilakukan untuk melihat seberapa besar pengaruh kepuasan dan kepercayaan terhadap loyalitas pelanggan pada Industri Kue Bawang Bina Karya Kecamatan Rengat Kabupaten Indragiri Hulu.

 

Data yang dikumpulkan adalah data primer. Data primer adalah data yang dikumpulkan menggunakan penyebaran kuesioner atau data yang didapat dari konsumen. Metode yang digunakan untuk menganalisa data adalah dengan menggunkan metode kuantitatif yaitu dengan regresi linear berganda, uji t dan uji f.

 

Hasil regresi linear berganda diperoleh persamaan Y = 0,404 + 0,491X1 +0,451X2 artinya loyalitas pelanggan adalah sebesar 0,404 apabila X1(kepuasan) dan X2(kepercayaan) sama dengan 0(nol). b1 koefisien regresi kepuasan sebesar 0,491 artinya setiap peningkatan kepuasan(X1) sebesar 1 dan variabel kepercayaan konstan maka akan terjadi peningkatan loyalitas pelanggan sebesar 0,491. b2 koefisien regresi kepercayaan sebesar 0,451 artinya setiap peningkatan kepercayaan(X2) sebesar 1 dan variabel kepuasan konstan maka akan terjadi peningkatan loyalitas pelanggan sebesar 0,451. Nilai korelasi sebesar 0,879 artinya hubungan antara variabel independen dengan variabel dependen sangat kuat karena mendekati angka 1, untuk determinasi variabel X1 dan X2 memberikan sumbangan terhadap Y sebesar 77,3% dan sisanya dipengaruhi oleh variabel yang yang tidak diteliti. Hasil untuk uji Fadalah F hitung (136,037) > F tabel (3,11) maka Ho ditolak dan Ha diterima. Artinya variabel kepuasan dan kepercayaan secara bersama – sama memiliki pengaruh signifikan terhadap loyalitas pelanggan. Hasil uji t untuk kepuasan(X1) adalah t hitung (3,892) > dari spada t tabel (1,989) maka Ho ditolak dan Ha diterima, yang berarti kepuasan memiliki pengaruh yang signifikan terhadap loyalitas pelanggan. Untuk kepercayaan (X2) karena t hitung (5,880) > dari pada t tabel (1,989) maka Ho ditolak dan Ha diterima, yang berarti kepercayaan memiliki pengaruh yang signifikan terhadap loyalitas pelanggan.
PERAN MEDIASI SELF EFFICACY PENGARUH MOTIVASI BELAJAR TERHADAP MINAT BERWIRAUSAHA MAHASISWA
Authors: Dewi Kurnia
Published: August 2019

Penelitian ini dilaksanakan di Sekolah Tinggi Ilmu Ekonomi Indragiri (STIE-I) Rengat. Perumusan masalah adalah apakah motivasi Belajar Berpengaruh Signifikan Terhadap Minat Berwirausaha Mahasiswa, motivasi Belajar Berpengaruh Signifikan Terhadap Self Efficacy Mahasiswa, Self Efficacy Berpengaruh Signifikan Terhadap Minat Berwirausaha Mahasiswa, dan Motivasi Belajar Berpengaruh Signifikan Terhadap Minat Berwirausaha Mahasiswa Melalui Self Efficacy. Tujuan penelitian adalah untuk mengetahui dan menganalisis pengaruh motivasi Belajar Terhadap Minat Berwirausaha Mahasiswa, motivasi Belajar Terhadap Self Efficacy Mahasiswa, Self Efficacy Terhadap Minat Berwirausaha Mahasiswa, dan Motivasi Belajar Terhadap Minat Berwirausaha Mahasiswa Melalui Self Efficacy. Dalam penelitian ini, penulis menggunakan pengambilan sampel dengan metode sensus, yakni sampel sebanyak 45 responden. Responden dalam penelitian ini adalah mahasiswa aktif Semester VI Konsentrasi Kewirausahaan Sekolah Tinggi Ilmu Ekonomi Indragiri (STIE-I) Rengat. Alat analisis yang penulis gunakan ialah Analisis Jalur (Path Analysis) dengan pendekatan deskriptif kuantitatif dengan bantuan Software SmartPLS 3. Hasil penlitian dapat disimpulkan bahwa: (1) Motivasi belajar tidak berpengaruh signifikan terhadap minat berwirausaha mahasiswa. (2) motivasi belajar berpengaruh positif dan signifikan terhadap self efficacy mahasiswa. (3) Self efficacy berpengaruh positif dan signifikan terhadap minat berwirausaha mahasiswa. (4) Motivasi belajar berpengaruh positif dan signifikan terhadap minat berwirausaha mahasiswa melalui self efficacy. Variabel selff efficacy berhasil sebagai variabel mediasi antara motivasi belajar terhadap minat berwirausaha.
ANALISIS TINGKAT KEPUASAN ORANGTUA TERHADAP TINGKAT LAYANAN PENDIDIKAN (Studi Kasus di Angel’s School Rengat - Kabupaten Indragiri Hulu)
Authors: Fransinatra Ziko
Published: August 2019

Penelitian ini bertujuan untuk menganalisis pengaruh Tingkat Kepuasan Orang Tua Terhadap Tingkat Layanan Lembaga Angel’s School Rengat. Metode penelitian ini adalah kualitatif dan survey dengan teknik analisis regresi linear Sederhana. Populasi penelitian adalah orang tua murid dengan sampel 50 orang.

Hasil penelitian menunjukkan Berdasarkan hasil analisis statistik tentang pengaruh variabel bebas terhadap variabel terikat pada penelitian ini, maka dapat terbukti bahwa hasil analisis statistik telah membuktikan, bahwa tingkat kepuasan orang tua berpengaruh positif dan signifikan terhadap tingkat layanan Angel’s School, dimana nilai thitung lebih besar dibanding ttabel, yaitu 2.114> 1,990 dan signifikansinya 0,001 kecil dari nilai α/2 0,05.

Sesuai dengan dimensi/cakupan penelitian tentang variabel kepuasan pada Angel’s School telah terwujud namun masih perlu ditingkatkan.  Hal ini didukung oleh pernyataan responden bahwa 78 % kepuasan orang tua mendukung tingkat layanan sedangkan 22 % belum terlaksana dan butuh peningkatan.               

Saran untuk penelitian penelitian lanjutan melakukan penelitian tentang variabel-variabel Kompetensi SDM dan Fasilitas apakah dengan metode penelitian yang sama atau dengan metode penelitian lain kualitatif maupun kuantitatif.
Effects of tobacco smoking on pulmonary function indices among undergraduate students
Authors: Adegoke Babatunde O. A. , AKINREMI Ayodele Akintunde , Akintobi Adekemi E
Published: August 2019

Background: Tobacco smoking is a risk factor for chronic respiratory disorders. The tobacco epidemic is driven by adolescents and young adults. Tobacco-related morbidity rises with increasing years of smoking, and the increasing number of young smokers may have considerable future public health implications.Objective: This study investigated the effect of tobacco smoking on pulmonary function indices among undergraduate students. Methods: This is a cross sectional study involving 104 male undergraduate students between 18 and 30 years of age. They were recruited by snowball sampling and were grouped based on their smoking status (current smoker 52: non-smoker 52). Participants with signs of respiratory disease, thoracic spine deformity, or contraindication to spirometry were excluded from the study. Participants’ forced vital capacity (FVC), forced expiratory volume in first second (FEV1), both in litres, and forced expiratory ratio (FER) in percentage were assessed using standard protocols. Data were analyzed using mean, standard deviation, independent t-test and chi-square test with alpha level set at 0.05.Results: The two groups were not significantly different in age, height and body mass index (BMI). Smokers had significantly reduced FVC (3.42±0.42 vs 3.87±0.4 litres) p=0.03; FEV1 (2.39±0.37 vs 3.22±0.38 litres) p=0.001 and FER (%) (70.7±7.58vs82.3±4.05) p=0.01. Among the smokers, a relationship was observed between years and numbers of cigarettes smoked and lung function. The proportion of participants with FER below the age-matched reference was significantly higher among smokers than non-smokers (40.4%vs6.7%) at p=0.021. Conclusion: Smoking reduced pulmonary function among undergraduate students. This may have important public health implications since continued smoking may accelerate lung function deterioration and consequently increase the future risk of developing lung disease.
Effectiveness of self-instructional information on knowledge of office ergonomics among computer users in educational institutions in North-Eastern Nigeria
Authors: Shokunbi Ganiyu Oluwaleke , George Gabriel
Published: August 2019

Background: The use of computers has increased among adolescents, as have musculoskeletal symptoms. There is evidence that these symptoms can be reduced through ergonomic approaches via educationObjectives: The purpose of this study was to assess the effectiveness of self-instructional information on knowledge regarding office ergonomics among computer users. Methods: 170 computer users among the staffs of selected higher educational institutions in Nigeria participated in this study. The occupational Safety and Health Administration (OSHA) workstation checklist was used to assess the level of knowledge of office ergonomics. The work Safely with Visual Display Terminal (WSVDT) booklet was used to provide instructional information on office ergonomics. Both the OSHA checklist and WSVDT booklet were administered and collected by hand. Paired t-test and Kendall’s correlation coefficients were used for data analysis. Statistical significance was set at an alpha level of 0.05Results: The pre-information and post-information knowledge scores of office ergonomic were 22.78±6.61 and 31.05±2.82 respectively.  Paired t test showed a significant difference in the pre information and post -information knowledge scores of the participants (t = 20.495, P value = 0.000). Kendall’s correlation coefficient value (r) of the association between changes in the level of knowledge of office computer ergonomic and age, level of education of computer users, levels of computer use; i.e., daily computer use, weekly computer use and total period of computer use,  were -0.28, 0.34, 0.59, 0.24 and 0.07, respectively. Age did not show a statistically significant correlation with changes in the knowledge of office ergonomic (P > 0.05) whereas the level of educational qualifications and all levels of duration of computer use did show significant correlation (P < 0.05). Conclusion: Findings from this study showed that instructional information on computer office ergonomics increased the level of knowledge of office ergonomics among computer users in selected institutions of learning in Nigeria. It also showed that the level of education and duration of computer use increased with an increase in the changes in the level of knowledge of computer office ergonomics among computer users.
Developing a modular apparel safety architecture for supply chain
management: the apparel recycle perspective
Authors: LIHONG CHEN , HONG YU , XINFENG YAN
Published: August 2019

This paper introduces the special issue on strategic choices for recyclable clothing implementation. Substantial private
implementation is needed if company management objectives to increase the share of recyclable clothing and prevent
dangerous clothing risk be achieved. The aim of this paper, and the entire special issue, is to draw scholarly attention
to the processes underlying strategic choices for recyclable clothing implementation. An modular apparel safety
architecture (MASA) framework for supply chain management was developed and implemented to provide guidelines
for apparel designers and manufactures to solve safe and sustainable problems related to apparel production. The
MASA framework was developed by integrating modular theory and product recyclable concept into existing apparel
design and production. Children’s clothing design and production was used to implement the MASA framework as a
proof concept. The MASA framework is the first apparel design and production model that emphasizes safety and
recyclability in addition to functional, expressive, and aesthetic considerations. The originality of this work is its ability to
combine social, technical, environmental and economic aspects using modular theory in order to provide a more holistic
point of view on factors impacting recyclable clothing system through the design and development of recyclable
management modules.
Basic research about corncob residue as Lyocell spinning material
Authors: CHENG WANG , LIXIA HU , RONGHUAN HAN , FUMEI WANG
Published: August 2019

Using the corncob residue as a new cheaper source material for Lyocell spinning technology. Chemical properties of the
corncob residue after extraction of hemicellulose and lignin were investigated in this paper. It was found that the main
composition of corncob residue is cellulose, accompanied by slight hemicellulose and very tiny amount of spinning
insoluble components. Compared to wood pulp, corncob residue has a similar number-average molecular weight, a
slightly larger weight-average molecular weight, a lower peak-relative molecular weight, and a larger polydispersity. All
those properties suggest that this kind of corncob residue has big potential to be used as spinning material for
regenerated cellulose fiber. A new type corncob residue made fiber was produced, using the Lyocell spinning
technology. Mechanical properties of the corncob residue fiber were analyzed. The corncob residue fiber has a tensile
strength value between that of viscose fiber and Lyocell fiber, indicating its good application prospects. However, the
corncob residue fiber has a high crystallinity and the orientation value with large fiber linear density, suggesting that the
spinning technology needs to be further improved.
Textile cosmetic pads based on psyllium and protein colloid in
combination with the horsetail extract
Authors: OLIVERA ŠAUPERL , LIDIJA FRAS ZEMLJIČ , VALH JULIJA VOLMAJER , TOMPA JASNA
Published: August 2019

The basic purpose of this research work was to develop a care/healing cosmetic pads where a horsetail water extract
was selected as a healing/care compound. Together with this, psyllium and keratin (protein colloid) were used as natural
compounds capable to form a gel-like structure in aqueous media, so they were explored as i) carriers of a care/healing
compound (horsetail extract), and as ii) “binding element” (due to relatively high viscosity) in-between the healing
compound and the textile substrate (i.e. non-woven viscose) itself. Such functionalization system was relatively easily
applied onto the non-woven viscose substrate. In this way the final product i.e. the cosmetic pad was created showing
good ant oxidative activity, storage stability and biodegradability. The latest is extremely important for environmentally
friendly products.
Neural network based thermal protective performance prediction
of three-layered fabrics for firefighter clothing
Authors: MÜGE DURSUN , YAVUZ ŞENOL , ENDER YAZGAN BULGUN , TANER AKKAN
Published: August 2019

The firefighter protective clothing is comprised of three main layers; an outer shell, a moisture barrier and a thermal liner.
This three-layered fabric structure provides protection against the fire and extremely hot environments. Various
parameters such as fabric construction, weight, warp/weft count, warp/weft density, thickness, water vapour resistance
of the fabric layers have effect on the protective performance as heat transfer through the firefighter clothing. In this
study, it is aimed to examine the predictability of the heat transfer index of three-layered fabrics, as function of the fabric
parameters using artificial neural networks. Therefore, 64 different three layered-fabric assembly combinations of the
firefighter clothing were obtained and the convective heat transfer (HTI) and radiant heat transfer (RHTI) through the
fabric combinations were measured in a laboratory. Six multilayer perceptron neural networks (MLPNN) each with a
single hidden layer and the same 12 input data were constructed to predict the convective heat transfer performance
and the radiant heat transfer performance of three-layered fabrics separately. The networks 1 to 4 were trained to predict
HTI12, HTI24, RHTI12, and RHTI24, respectively, while networks 5 and 6 had two outputs, HTI12 and HTI24, and RHTI12
and RHTI24, respectively. Each system indicates a good correlation between the predicted values and the experimental
values. The results demonstrate that the proposed MLPNNs are able to predict the convective heat transfer and the
radiant heat transfer effectively. However, the neural network with two outputs has slightly better prediction performance