bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of light intensity on growth and flowering ornamental plants in constructed wetlands
Authors: Sandoval-Herazo Luis Carlos , Alvarado-Lassman Alejandro , Nani Graciela , Nakase-Rodríguez Carlos
Published: September 2022

Light is an indispensable source for the photosynthesis of plants, but also for their growth and development. On the other hand, the production of ornamental plants requires multiple nutrients for their proper development, a source available in high concentrations in wastewater. Recent research on constructed wetlands (CWs) that use ornamental plants to treat wastewater and at the same time are used as a means of growth, is considered a sustainable alternative. This study evaluated the influence of light intensity on the growth and flowering of ornamental plants (Lavandula sp., Anthurium sp., Zantedeschia aethiopica and Spathiphyllum wallisii) in constructed wetlands, fed with domestic wastewater. 30 mesocosms of constructed wetlands were used as a culture medium for ornamental plants, the effect of light intensity on the development of the plants was measured, as well as the removal of Nitrogen (N-NO3), phosphate (P-PO4) and biochemical demand of oxygen (DBQ5). The plants were able to adapt and grew healthy in the three-support media with the exception of  Lavandula sp., which did not survive in any of the systems, showing that in the months when the light intensity was higher, a higher growth rate was reached to 9.5 % on average. In terms of the removal of N-NO3 (45- 60%), P-PO4 (20-23%) and COD5 (60-85%), no significant differences were found between any of the substrates. The above allows us to affirm that CWs, are suitable means for cultivation of ornamental plants and the development of them is favored with intensities of light in ranges from 720 to 856 µmol · m −2 · s −1, On the other hand, the substrates used proved to be efficient to remove contaminants, but at the same time to facilitate the healthy development of the used ornamental vegetation, with the exception of the lavender sp. Research is required to evaluate the effects of light intensity on the production of ornamental plants in controlled environments.
Solid Waste Inventory for Mezquital Valley, Hidalgo
Authors: González-López Gloria Inés , Rosas-Vázquez Elías Gerardo , Zamora-Hernández Abigail
Published: September 2022

As a result of a documentary investigation, the solid waste inventory of the Mezquital Valley (VM) region was generated, which is in Hidalgo State in Mexico, and it is integrated by 28 municipalities. The main purpose was to identify the sources of waste that produce Urban Solid Waste (MSW), Special Management Waste (SHW) and Hazardous Waste (HW). For this purpose, several research articles and waste inventories developed for several cities and countries were reviewed and studied because some of them show generation indexes for each source and in some cases for each person. These indexes were applied to calculate waste for each source and sector of municipalities. The sources of reviewed documents include some government offices such as Instituto Nacional de Estadistica y Geografia (INEGI), Secretaria de Agricultura y Desarrollo Rural (SADER) and the Servicio de Informacion Agroalimentaria y Pesquera (SIAP). Collected data were grouped by municipalities according to source type and waste type, which were used for representing environmental problems of Hidalgo state by hierarchy. Total solid waste generated in MV region is 5,041,445 t/year, with 92% are SHW, 7.63% are MSW and only 0.37% is for HW. A comparison of total solid waste generated in Mexico show that MV region contributes with only 1%, even when this region is one of the biggest in Hidalgo with 30% of the total population of the state. According to INEGI, in Mexico, 92% of final disposal sites are inappropriate and only 8% are landfills with appropriate disposal. For MV region, the final waste disposal is inappropriate because only 18% of its 28 municipalities deliver their waste into landfills.
Evaluation of the extraction of cellulose fibers from banana pseudostems with potential use in the paper industry
Authors: Ardila-Arias Alba Nelly , Johana-Restrepo Hely , Valencia-Duarte Johan Steven , Arriola-Villaseñor Erasmo , Bedoya-Betancur Santiago , Valencia-González Juan David
Published: September 2022

Cellulose fibers were obtained from banana pseudostem residues by two different chemical routes: 30% sodium hydroxide and 8% hydrogen peroxide. The average yields obtained were 24.4% and 49.3%, respectively. Additionally, according to the SEM results, more fibrillous material is obtained under alkaline conditions. On the other hand, XRD diffractograms of the materials obtained by both methods, show similarities, however, a peak in 2θ = 16 ° in the material treated with H2O2, suggests that the material that was not completely degraded and therefore concluding greater effectiveness with the alkali treatment. Thus, the results obtained to date are not conclusive, therefore, the fibers obtained are still characterized by other complementary SEM analyzes and other techniques to define their dimensions and morphology with greater precision and from these results determine the possible products of the paper industry for which said fibers could be used.
Synthesis of heterogeneous metathesis catalysts for the development of sustainable processes
Authors: Gutiérrez-Flores Selena , García-Barrera Lidia , Zárate-Saldaña Daniel , Cruz-Morales Jorge A.
Published: September 2022

In recent decades, it has been tried to develop processes that involve the use of catalysts that can be recovered from the reaction medium, to make them green and sustainable. Approximately, 90 % of all processes in chemistry and petrochemicals use heterogeneous catalysts. In this sense, the supported heterogeneous catalysts present advantages in the purification of the products and the reduction of costs. In the present work, the synthesis of a new heterogeneous supported catalyst, highly active in the metathesis reaction, based on a ruthenium-alkylidene complex, was carried out. The new catalyst was obtained by anchoring of dichloro[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene](benzylidene)(tricyclohexylphosphine)ruthenium (II) (second generation Grubbs) in various silylated polymeric gels, based on 2-norbornene-5,6-dicarboxylic anhydride (NDA) and cis-cyclooctene (CO) cross-linked with various percentages of 3-aminopropyltriethoxysilane (APTES) (5%, 15%, 100%). The new heterogeneous catalyst was successfully used in the depolymerization reaction via metathesis of natural rubber from Oaxaca (HNO), using 1-octene as CTA; observing the formation of liquid oligomers, achieving a decrease in molecular weight from 137.941 g/mol to 297 g/mol; proving, in this way, its high effectiveness.
Dynamics of methanogenic archaean populations in a FBR digester during the transition from mesophilic to thermophilic conditions applying control schemes
Authors: Snell-Castro Raúl , Vázquez-Cotero Carlos Javier , Méndez-Acosta Hugo Oscar , García-Sandoval Juan Paulo , Gutiérrez-Gómez Alejandro Isaac
Published: September 2022

The purpose of this study was the molecular characterization of the methanogenic Archaea community in a fixed biofilm reactor (FBR) fed with tequila vinasses. This characterization was realized during the transition from mesophilic (37 °C) to thermophilic (55 °C) conditions applying cascade control schemes. Initially, the FBR was started-up and operated under mesophilic conditions applying a change from 5 to 6.6 g-COD L-1 d-1 in the organic loading rate to evaluate a control scheme where the reference variable was the alkalinity (alpha factor) and the controlled variable was the tequila vinasses (substrate) flow rates. Subsequently, the FBR was operated under thermophilic conditions increasing the temperature in a direct manner and after, in a stepwise manner by applying a control scheme which used the alkalinity (alpha factor) as a reference factor to regulate the temperature of the bioprocess, keeping the tequila vinasses flow rate constant. The Archaea community was characterized by mass sequencing and further phylogenetic analysis of the variable regions 4 and 5 of the 16S ribosomal RNA gene. The results on the characterization of the Archaea community indicated that the populations of methane-producing Archaea by the acetotrophic pathway (Methanosaeta harundinaceae, M. thermoacetophila, Methanosaeta sp., Methanosarcina thermophila and Methanometylovorans uponensis) showed a reduction in their relative abundances during the disturbances applied under mesophilic conditions. Whereas, the populations of methane-producing Archaea by the hydrogenotrophic pathway (Methanobacterium beijingense, M. subterraneum, Methanofollis liminatans, Methanoculleus marisnigri, Methanolinea tarda, and Methanomassiliicoccus sp.) increased their relative abundances, indicating a phenomenon of physiological adaptation to the environmental disturbances under mesophilic conditions, obtaining a hydrogenotrophic:acetotrophic Archaea ratio of 87:8. However, the population dynamics during the thermophilic stage indicated that the methanogenic acetotrophic archaea doubled their relative abundance reaching a hydrogenotrophic:acetotrophic Archaea ratio of 81:16, indicating a phenomenon of physiological adaptation to thermophilic conditions when the control scheme applied the increase of the temperature in a stepwise manner, since the direct increase to 55 °C destabilized the Archaea community and the alpha factor.
Circular water economy: cellulose recovery industry of multilayer packaging
Authors: Pavón-Silva Thelma Beatriz , Gutiérrez-Segura Edith E. , Zarazua-Aguilar Yohuali , Hurtado-Alva María de Lourdes
Published: September 2022

Herein it is reported the implementation and start up of a Wastewater Treatment Plant (WWTP) installed in a cellulose recovery company from multilayer packings. Initially, it was verified the treatability of the water sample by an aerobic-anaerobic biological procedure. Based on the obtained results of the initial stage, it was proposed the design, construction, start up and evaluation of the WWTP. It was achieved the total recovery of the treated water (zero discharge) and an economic benefit for the company since the available amount of water was almost enough for the requirements of the company and only a small fraction was purchased to external contractors. These principles fit well with the concept of circular economy and sustainability. The proposed WWTP configuration included the following components: sieving, activated sludges, a secondary sedimentation and a third treatment with sand filters, activated carbon and disinfection of the water. It was attained the following results: 82% of removal of oils and fats, 85% of removal of settleable solids, 70% of removal of suspended solids and 75% of removal of DBO5. Nevertheless, it was necessary the monthly utilization of an inoculum in the biological reactor to avoid the presence of pathogens in the recovered cellulose. The correct operation of the tertiary process is necessary to avoid the presence of pathogens in the recovered cellulose, likewise, zero discharge is obtained by reusing the total treated water, saving approximately 90% of the cost of water per month.
Life Cycle Assessment of wood cookstoves from Mexico and Central America
Authors: Ruiz-García Víctor Manuel , Fuentes-Gutierrez Alfredo Fernando
Published: September 2022

Currently, in the world, there is a use of obsolete technologies to satisfy cooking and water heating needs in rural areas. These technologies have emissions with environmental impacts, which contribute to climate change. This study performs a Life Cycle Assessment in the Global Warming Potential (CO2e) impact category in six firewood devices representative of Mexico and Central America. As part of this analysis, measurements of emissions and energy consumption in a typical day during water heating and cooking tasks were integrated. Devices such as open fire have zero CO2e contributions in the construction but represent the highest emissions and energy consumption in a typical cooking day. On the other hand, cookstoves such as the Patsari and the Onil contribute to mitigating CO2e emissions in the long term. The main CO2e contributions are produced in the final use. This analysis is useful in making decisions for the implementation of massive cookstove programs.
Preliminary evaluation of the decontaminating potential of a manganese oxide supported on mordenite
Authors: Vázquez-Rodríguez Gabriela Alejandra , Trejo-Bustillos Perla Rubí
Published: September 2022

The treatment and in situ reuse of greywater could greatly contribute to reduce the water demand at the municipal level, thereby achieving social, economic, and environmental benefits. Decentralized treatment systems use chemical, physical and biological methods to decontaminate water, which then allows its reuse in garden irrigation, filling toilets or cleaning without primary contact with the inhabitants of the home, among other uses. In several of these systems (such as submerged wetlands or biofilters), filter materials are used. For example, zeolites and manganese oxides (MnOx) are reported in the literature as excellent candidates for use in water treatment due to their adsorption properties and, in the case of the latter, to its oxidation potential. In this work, a coating with a manganese oxide was carried out through a precipitation reaction on mordenite-type zeolitic material, to be used as a filter material in decentralized greywater treatment systems. The synthetized composite material was analyzed by the methylene blue adsorption test and the experimental data was adjusted to the Langmuir Isotherm model. The value of the specific surface area of the MnOx-coated mordenite-type zeolite was also estimated. With this analysis, it was possible to obtain preliminary results about the capacity of this material to decontaminate household greywater, which needs to be confirmed by further research.
An assessment of key factors to a metropolitan governance for the construction of sustainable urban public policies for the integral management of solid waste in the metropolitan area of Guadalajara
Authors: Fregoso-Cuenca Erika Alejandra
Published: September 2022

Territory and population of Guadalajara metropolitan area has grown in recent decades, to address the challenges that come along with planning, management, and urban development. Public policies are building by the local government, however, the loss of geographical and social limits, the actions generated by local government have a direct impact on other districts.  To achieve tan equitable and sustainable metropolis, its necessary the metropolitan governance, to make a collaborative work and clearly guidelines to action. Faced with a clear problem at the metropolitan scale with solutions at the local level and uncoordinated forces to build and implement public policies; this paper analyzes the exercise of governance on the integral management of urban waste to the construction of sustainable and equitable public policies in the Metropolitan Area of Guadalajara. The research is based on a Delphi method, interviews with representative actors of different involucrate sectors and a documentary review for a comprehensive analysis. Finally, the knowledge of the research presented here; has increased in importance given the recent approval of the Metropolitan Climate Action Plan. The municipalities that make up the metropolis must align themselves and unite their efforts for a sustainable development.
Potassium catalysts supported on γ-Al2O3 to produce biodiesel
Authors: Torres-Aldaco Alejandro , Torres-Cervantes Jessica , Lugo-Leyte Raúl , Lugo-Méndez Helen
Published: September 2022

Biodiesel production is carried out through homogeneous catalysis that forms complex reaction mixtures and has high operating costs. The aim of this work is to synthesize basic, active and selective heterogeneous catalysts for the transesterification reaction with vegetable oils employing g-alumina as support and potassium as active species. The catalysts were characterized by X-ray diffraction and infrared spectroscopy. The amount of catalyst used in the reaction was scanned in a range of 1-10% w, obtaining a maximum conversion of 85% at 55 °C with 6.5% w/w of catalyst with respect to the reagent load and with a methanol-oil molar ratio of 6: 1, reaching equilibrium conversion at six hours. The catalysts were tested at 40, 45, 50 and 55 °C in the transesterification reaction using refined sunflower oil and anhydrous methanol as reagents in a 6: 1 ratio. The 40% K catalyst obtained the best conversion at 55 °C with 85% and showed a selectivity of 45%.
Hydroalcoholic extracts of Parkinsonia aculeata: a sustainable alternative for the biocontrol of Fusarium oxysporum
Authors: Argentel-Martínez Leandris , Arvizu-Quintana Eivy Fabiola , Peñuelas-Rubio Ofelda , Leyva-Ponce Aurelio , García-Urías Julio
Published: September 2022

Fusarium, caused by Fusarium oxysporum Schlecht, generates significant losses in important crops in the Northwest Mexico, mainly in the State of Sonora. Given the need to reduce polluting loads due to the use of commercial fungicides, the use of sustainable ecological biotechnological alternatives such as plant extracts for disease biocontrol is a partial solution in both organic and traditional production systems. The present work aimed to evaluate the antifungal potential of hydroalcoholic extracts from leaves and stems of Parkinsonia aculeata L., Sp. Pl. (palo verde) for Fusarium oxysporum Schlecht biocontrol. Plant samples were taken from two semi-arid ecosystems (Bahía de Lobos, Site 1, and Tesopaco, Site 2). This samples were used to obtain and apply two volumes of hydroalcoholic extracts (300 and 500 ppm) in the culture medium prepared for the mycelial growth of Fusarium oxysporum Schlecht. As a control, distilled water was used to evaluate the free mycelial growth (dependent variable) and the commercial fungicide (TIABENDAZOL) for the total control of the fungus. These extracts were added to culture media using the poison culture medium technique. The treatments were placed in a growth chamber, following a completely randomized experimental design with a trifactorial arrangement. The extracts of Parkinsonia aculeata L., Sp. Pl. from both sites and volumes (300 ppm, and at 500 ppm) showed effectiveness for mycelial growth inhibition. There was a highly significant interaction between the three established factors. The source of variation with the greatest contribution to the total variability found was the volume in the culture medium. The minimum inhibitory volume of the hydroalcoholic extract was 289 ppm and the lethal least squared volume was 444 ppm in the culture medium. The obtained results confirm the viability of using hydroalcoholic extracts of Parkinsonia aculeata L., Sp. Pl.as a sustainable alternative for Fusarium oxysporum Schlecht biocontrol of in the agricultural production systems of northwestern Mexico.
Design of the installation of a small wastewater treatment plant using a Tubular Biological Reactor in the Xochimilco canals
Authors: García-González Sergio Adrián , Ramón-Montejo Grecia Carolina , Durán-Moreno Alfonso
Published: September 2022

This work proposes the generation of a preliminary project based on the biological treatment process called the Tubular Biological Reactor (RBT), to treat the wastewater discharges that contaminate the Xochimilco canals. The main focus of the work is: through the use of the FEL methodology to generate a design for the installation of a small wastewater treatment plant and thus be able to establish a treatment train based on RBT technology and thus translate it into a diagram of process blocks, subsequently constructing the Process Flow Diagram (DFP) which includes the pre-treatment equipment and main treatments that make up the treatment train, a material balance was prepared that considers urban wastewater as effluent in the tributary of the plant, the systems analyzed in the mass balance are; pretreatment, the sludge produced by the biological reactor as well as its treatment, the aeration systems and the disinfection of the effluent. To comply with NOM- 003- SEMARNAT-1997. With the complete mass balance, the pipeline and instrumentation diagram (DTI) was built and a Layout diagram was made to locate the equipment, this methodology allowed to generate a design that can be applied at various points of the Xochimilco channels, mainly where sewage discharges occur. wastewater treatment; tubular biological reactor.
Chlorella sp. immobilized with application in the treatment, monitoring of water and biomass production
Authors: Michel-Parra Guadalupe , Vizcaíno-Rodríguez Luz Adriana , Aguilar-Corona Nereida Yuriko , Caro-Becerra Juan Luis , Mayoral-Ruíz Pedro Alonso
Published: September 2022

The application of microalgae in bioremediation processes is studied to remove toxic components and ions excess that cause eutrophication.  Algae use the nutrients excess present in the water to produce biomass through photosynthesis. On the other way, microalgae are used in environmental monitoring, these organisms are sensitive to both natural and anthropogenic pollutants, which promote or inhibit cell and population growth. The present study aimed to determine an optimal matrix for the immobilization of Chlorella sp. It is a native species of the region. The matrices tested were 4 % calcium alginate and 4 % alginate-agar. For the culture, Bold's medium was used, and growth kinetics were carried out for each treatment in Bach-type culture, during 21 days of incubation. The response variables were maximum cell concentration, cell viability and conservation of the spheres. The maximum cell concentration was 1.07x106 cells.mL and it was reached after 15 days of culture, in 4% alginate spheres. The doubling time was 0.162 and 0.141 for Chlorella sp. Retained in 4 % alginate matrix and 4 % alginate agar, respectively. Regarding the quality of the spheres, after 15 days of culture, the disintegration process of the Alginate-Agar immobilization system began. The alginate spheres remained unchanged for the 21 days of the experiment. In conclusion, the best treatment for the immobilization of Chlorella sp was obtained when 4 % alginate was used, and it is recommended to continue the studies for the development of the bioremediation system, biomass production and biosensors.
C and N Mineralization Dynamics in Composts: Prediction of Soluble Organic Carbon by Multiple Nonlinear Regression
Authors: Conde-Barajas Eloy , Bedolla-Rivera Héctor Iván , Negrete-Rodríguez María de la Luz Xóchilt , Galván-Diaz Sandra Lizeth , Samaniego-Hernández Midory , Gámez-Vázquez Francisco Paúl
Published: September 2022

Urban biosolids present a considerable concentration of nutrients, which are currently wasted and deposited in landfills causing environmental contamination. In the present study, a dimensionality reduction technique is used to select indicators with a higher relationship in their variability. Subsequently, a multivariate nonlinear regression process is used to establish an equation that allows predicting the behavior of the soluble organic carbon indicator. The indicators with the greatest relationship with the variability of the data analyzed were N-NO3-, N-NH4+/N-NO3- and IES. The resulting model presented a correlation of 30% with the soluble organic carbon indicator in the composting systems.
Design of a photovoltaic solar irrigation system for the evaluation of phenology in jalapeño pepper
Authors: Rodríguez-Chiunti Miguel Ángel , Vidal-Gamboa Adán
Published: September 2022

The need for higher crop productivity per unit area due to the growing population of the world is an extreme need, one of the possible approaches to cover this type of needs is photovoltaic solar irrigation systems. Considering the availability of solar radiation and the lack of electrical energy in the experimental study area, the design of a solar photovoltaic drip irrigation system is justified in an experimental area of ​​60 m² under shade mesh in Cosamaloapan, Veracruz, where the estimation of the solar radiation was carried out with the model provided according to the geographical location by means of the FAO CROPWAT software. For the calculation of evapotranspiration, the Penman-Monteith method was used, the data of the cultivation coefficient (Kc) were taken from the guide for the determination of the water requirements of the FAO crops and later these data were annexed to the aforementioned software for subsequent processing in the calculation of the water requirement of the crop. The main objective of this work was to design a photovoltaic solar irrigation system for the evaluation of phenology in the jalapeño pepper (Capsicum annuum, L.) under shade mesh. The analysis of the results indicates that during the months that included the development of the research, a daily average of 10.5 MJ/m² (2.91 Kwh/m²) was presented, which allowed charging the 9 A and 12 V battery in a time of 4 hours at 80 % charging efficiency through the 50 W solar panel used. The 70 W irrigation pump used was operated daily in a time of 16 minutes to cover the water demand of each plant (260 ml).
Bioethanol production from cheese whey
Authors: Sandoval-Salas Fabiola , Rendón-Ávila Anayeli , Alemán-Chang Antonio Janoary , Méndez-Carreto Carlos , Barrales-Fernández Christell
Published: September 2022

During cheese production, a high volume of cheese whey are obtained (Gómez et al., 2019; Álvarez-Delgado and Otero-Rambla 2020). Cheese whey is rich in proteins of high nutritional value, such as β-lactoglobulins, α-lactalbumins, glycomacropeptides, immunoglobulins and protease-peptone (Krissansen, 2013; Wijayanti et al., 2014). Around 50% of the cheese whey produce around world have does not receive some type of treatment. Small and medium producers cannot acquire any technology to add value to this waste (Tavares y Malcata, 2016). Different investigations about exploitation of cheese whey have been developed. Cheese whey can be use in the biofuels production, such as ethanol, butanol, glycerol, methane, hydrogen, mainly. Besides, cheese whey has commercial value by the content of short chain fatty acids (Bourda et al., 2017; Ramos y Silva, 2017). In the present study, two types of pretreatment in cheese whey were evaluated (thermal and chemical deproteinized). The thermal treatments obtained higher yields in ethanol production (25.28 g per liter of cheese whey), in ferementation with Kluyveromyces marxianus. In the case of acid cheese whey without pretreatment, we obtained 22.12 g of ethanol per liter of cheese whey. In the enzymatic hydrolysis and fermentation with Saccharomyces cerevisiae, better yields were obtained in the thermal deproteinized pretreatment (18.96 g per liter of cheese whey).
Evaluation of phytohormones and hydrogen peroxide in the corn crop (Zea mays L.)
Authors: Juárez-Santillán Luis Felipe , Bonilla-Cruz Saúl , Reyes-Gómez Juan Pablo , Martínez-Reséndiz Georgina , Extocapan-Molina Jocabel , Armenta-Barrios Julio Alfonso
Published: September 2022

The use of environmentally friendly growth promoters and chemical agents in agricultural production is an important and favorable challenge, since it would reduce the use of agrochemicals and therefore less pollution for the field. The main objectives of this study were to make treatments on corn crops with auxins, gibberellins and hydrogen peroxide; as well as determining what the main positive or negative effects are. A factorial experiment design was carried out with five experiments which were: 1) auxins, 2) gibberellins, 3) Hydrogen peroxide (H2O2), 4) auxins-gibberellins and 5) control; the crop was corn, soil and plant samplings were made every 20 days, the variables analyzed in the plant were stem diameter, stem size, number of leaves and root size; the soil was analyzed for nitrites, nitrates, pH, EC and Eh; a statistical analysis was performed with these (ANOVA and Tukey's test). The five experiments were carried out and according to the results obtained, it can be said that the best treatments are those in which H2O2 and auxins were used, since these were in which the crop presented the highest values ​​of the variables analyzed in the plant. These results suggest that in subsequent studies experiments using phytohormones and H2O2 together.
Pengaruh Economic Value Added dan Market Value Added Terhadap Return Saham Pada Perusahaan Manufaktur Yang Terdaftar Di Bursa Efek Indonesia
Authors: Suwandaru Rachman , Hikmah Nur
Published: September 2022

Tujuan penelitian ini adalah : untuk mengetahui pengaruh  Economic Value Added dan Market Value Added terhadap Return Saham pada perusahaan manufaktur yang terdaftar di bursa efek indonesia. Metode analisis yang digunakan adalah: analisis regresi linear berganda, uji asumsi klasik yang terdiri dari: uji normalitas, uji multikolinearitas, uji heteroskedastisitas, uji autokorelasi, serta uji hipotesis yang terdiri dari (Uji R dan uji t). Hasil uji parsial yang telah dilakukan bahwa economic value added   berpengaruh positif dan tidak signifikan terhadap return saham, sedangkan market value added  berpengaruh positif dan signifikan terhadap return saham
Analisis Pengaruh Suasana Restoran dan Lokasi terhadap Minat Beli Konsumen pada Restoran Limbung Mas Indah Kabupaten Gowa
Authors: Muh Saleh R  , M Mariah
Published: September 2022

Penelitian ini bertujuan untuk mengetahui analisis pengaruh suasana restoran dan lokasi terhadap minat beli konsumen restoran Limbung Mas Indah kabupaten Gowa. Model yang digunakan dalam penelitian ini adalah metode kuesioner dan studi kepustakaan dan metode penentuan sampel yang digunakan adalah dengan menggunakan rumus slovin dengan sampel berjumlah 71 orang. Metode analisis yang digunakan adalah analisis regresi linear berganda. Hasil penelitian ini menunjukkan bahwa variabel suasana restoran dan lokasi mempunyai pengaruh positif dan signifikan terhadap minat beli konsumen restoran Limbung Mas Indah, sedangkan variabel lokasi merupakan variabel yang dominan berpengaruh.
Analisis Tingkat Kewajaran Harga Saham Pada Perusahaan Perbankan Yang Terdaftar Di Bursa Efek Indonesia
Authors: Nur Alam
Published: September 2022

Penelitian ini bertujuan untuk menganalisis tingkat kewajaran harga saham perbankan yang mengalami Overvalue, Undervalue dan Fairvalue pada perusahaan sektor perbankan yang terdaftar di Bursa Efek Indonesia. Populasi dalam penelitian ini adalah seluruh perusahaan perbankan yang terdaftar di BEI tahun 2010 sampai 2014, sedangkan sampel penelitian ini ditentukan dengan metode purposive sampling sehingga diperoleh 9 perusahaan. Hasil dari penelitian menunjukkan bahwa pada perusahaan perbankan terdapat perusahaan yang memiliki nilai yang mahal (overvalued) yaitu PT.Bank Central Asia Tbk, PT. Bank Negara Indonesia Tbk dan PT. Bank BPD Jawa Barat dan Banten Tbk, sedangkan perusahaan yang bernilai undervalued yaitu PT. Nusantara Parahyangan Tbk, PT. Bank Rakyat Indonesia (Persero) Tbk, PT. Bank Danamon Tbk, PT. Bank Tabungan Negara (Persero) Tbk, PT. Bank Mandiri (Persero) Tbk, dan PT. Bank Himpunan Saudara 1906 Tbk.
Niat Repetronase Konsumen Terkait Adanya Juru Parkir Liar di Kota Makassar
Authors: Erwin
Published: September 2022

Penelitian ini bertujuan untuk menelusuri dan memaknai niat repatronase konsumen terkait keberadaan juru parkir liar di kota Makassar. Pentingnya penelitian ini dikarenakan niat pembelian kembali konsumen sangat berdampak terhadap volume penjualan suatu tempat/toko/outlet. Penelitian ini dilakukan karena maraknya juru parkir liar di kota Makassar yang juga merupakan sebuah fenomena yang belum terselesaikan serta belum ditemukan penelitian mengenai niat repatronase konsumen terkait adanya juru parkir liar. Penelitian ini dirancang dengan menggunakan metode penelitian kualitatif. Teknik analisis data yang digunakan adalah deskriptif naratif (Interactive Model) Miles dan Humberman yakni dengan data collection, data reduction, data display, dan conclusion drawing / verification. Dalam penelitian ini, pengujian kualitas data dilakukan dengan uji validitas menggunakan dua pendekatan yakni triangulasi dan member check. Hasil penelitian ini menunjukkan bahwa 93,33% informan yang tidak ingin kembali lagi berkunjung atau berbelanja pada tempat/toko/outlet (repatronase) dimana terdapat juru parkir liar. Dengan alasan berikut; juru parkir liar dianggap kurang beretika, terkadang anak-anak kecil yang menjadi juru parkir liar, muncul tiba-tiba, tidak membantu atau langsung pergi saat setelah dibayar, tidak kompromi, meminta tarif parkir semaunya, tidak bertanggungjawab dan mengganggu pikiran konsumen.
Analisis Motif Konsumen dalam Membeli Produk Virtual Pada Game Online di Kota Makassar
Authors: Achmad Ridha  , Daga Rosnaini
Published: September 2022

Penelitian ini bermaksud untuk mengetahui Fakor apa saja yang mendorong konsumen untuk membeli produk virtual pada game online di kota Makassar. Penelitian ini menggunakan sampel sebanyak 180 orang responden dengan teknik accidental sampling. Variabel penelitian terdiri dari 18 variabel yang diuji dengan menggunakan metode analisis faktor. Berdasarkan hasil pengujian terhadap 18 faktor, diperoleh 5 faktor inti yang terbentuk, yaitu ; (1) faktor ketertarikan personal, sebagai faktor pertama dengan pengaruh yang paling besar (2) faktor interaksi sosial, sebagai faktor kedua (3) faktor persepsi nilai produk, sebagai faktor ketiga (4) faktor pengalaman bermain, sebagai faktor keempat, dan (5) faktor dukungan terhadap vendor game sebagai faktor kelima.
Analisis Perbandingan Kinerja Keuangan Bank Syariah Sebelum dan Sesudah Krisis Global Tahun 2008
Authors: Anugerah Lutfi
Published: September 2022

Penelitian ini bertujuan untuk menganalisis perbedaan kinerja keuangan bank syariah berdasarkan aspek likuiditas, solvabilitas, dan rentabilitas  sebelum dan sesudah krisis global tahun 2008. Populasi penelitian ini yakni seluruh bank syariah di Indonesia. Adapun Sampel yang digunakan dalam penelitian ini berjumlah 3 bank umum syariah dan menggunakan data tahun 2005 hingga tahun 2012. Analisis data menggunakan teknik t-tes paired. Teknik analisis yang digunakan adalah Paired Sampel t Test. Uji hipotesis menggunakan statistik untuk menganalisis perbedaan kinerja keuangan bank umum syariah berdasarkan rasio likuiditas, rasio solvabilitas, dan rasio rentabilitas sebelum dan sesudah krisis global tahun 2008 dengan tingkat signifikasi sebesar 5%.
Hasil penelitian uji t atau teknik t-tes paired menyimpulkan bahwa terdapat tida terdapat perbedaan yang signifikan kinerja keuangan bank umum syariah berdasarkan rasio likuiditas diwakili oleh rasio Financing to Deposit Ratio sebelum dan sesudah krisis global tahun 2008, sedangkan kinerja keuangan bank umum syariah berdasarkan rasio solvabilitas diwakili oleh rasio Capital Adequacy Ratio dan rasio rentabilitas diwakili oleh rasio Return on Equity sebelum dan sesudah krisis global tahun 2008 menunjukkan tidak terdapat perbedaan dan tidak signifikan kinerja keuangan bank umum syariah sebelum dan sesudah krisis global tahun 2008.
Pengaruh Growth Opportunity, Struktur Modal, Ukuran Perusahaan, Profitabilitas dan Kebijakan Deviden Terhadap Nilai Perusahaan yang Terdaftar di Bursa Efek Indonesia
Authors: Rambu Tasik Janingrith
Published: September 2022

Penelitian ini bertujuan untuk menganalisis pengaruh growth opportunity, struktur modal, ukuran perusahaan, profitabilitas dan kebijakan deviden terhadap nilai perusahaan yang terdaftar di Bursa Efek Indonesia. Populasi dalam penelitian ini adalah seluruh perusahaan perbankan yang terdaftar di BEI tahun 2011 sampai 2015, sedangkan sampel penelitian ini ditentukan dengan metode purposive sampling sehingga diperoleh 6 perusahaan. Metode analisis yang digunakan adalah analisis regresi berganda. Hasil penelitian ini menyimpulkan: 1) growth opportunity berpengaruh negatif tidak signifikan terhadap nilai perusahaan, 2) struktur modal berpengaruh negatif tidak signifikan terhadap nilai perusahaan, 3) ukuran perusahaan berpengaruh negatif tidak signifikan terhadap nilai perusahaan, 4) profitabilitas berpengaruh positif  signifikan terhadap nilai perusahaan, dan 5) kebijakan deviden berpengaruh negatif tidak signifikan terhadap nilai perusahaan.
Impikasi Stimulant Insentif Pajak pada Pertumbuhan Investasi Kabupaten dan Kota di Sulawesi Selatan
Authors: Muh Rum
Published: September 2022

Keringanan pajak terkait dengan investasi pada kabupaten dan kota di Sulawesi Selatan sebaiknya dprediksi dan dipertahankan agar menghindari melemahnya kemampuan pemerintah untuk mempengaruhi perilaku investasi. Pemerintah daerah diharapkan mempertimbangkan untuk mengurangi kerumitan laporan biaya pajak. Penelitian ini tidak hanya memberikan informasi mengenai efektivitas dan biaya insentif pajak, tetapi juga membantu untuk memperkuat keuangan pemerintah daerah dan memberikan kontribusi yang signifikan terhadap transparansi fiskal dan peningkatan investasi daerah. Yang menjadi rumusan masalah ialah apakah tujuan insentif pajak memberikan dampak pada peningkatan investasi?. Penelitian ini mengambil sampel dan populasi pada keuangan daerah kabupaten dan kota se Sulawesi Selatan selama tahun 2016- 2018, adapun skala data yang digunakan adalah data ratio yang bersumber dari data statistik. Adapun teknis analisis penelitian ini ialah dilakukan secara deskrptif, crosstab, korelasi, dan prediksi model terhadap data insentif pajak dan pertumbuhan investasi. Hasil penelitian menunjukkan pengaruh insentif pajak terhadap peningkatan investasi antara tahun 2016 sampai tahun 2018 tidak sama. Setiap tahun secara umum menunjukkan signifikansi yang cukup tinggi, walaupun tahun 2018 mengalami penurunan secara global. Pada tahun 2016 capaiannya sangat rendah bahkan tahun 2017 mengalami peningkatan, sampai pada tahun 2018 sedikit mengalami penurunan. Prediksi investasi tahun 2017 dapat menjadi model pada tahun 2020.
MODELAGEM DE NEGÓCIOS E GESTÃO DA INOVAÇÃO NAS ORGANIZAÇÕES
Authors: Antonio Raitz Maier Jerry , Silva Ferreira Hugo
Published: September 2022

grandes transformações nas estruturas e nos processos organizacionais, gerando valores compatíveis com as novas demandas para o mercado global. Essas mudanças são observadas nos diferentes níveis e interferem na estrutura dos espaços produtivos, contribuindo para a definição de novas estratégias e novos modelos de negócios. Este trabalho tem como objetivo apresentar um estudo sobre o tema inovação e suas contribuições para o planejamento e gestão empresarial. Propõe a análise das principais teorias que definem os modelos de negócio, compreendendo a importância das diferentes tecnologias que promovem mudanças disruptivas em ambientes organizacionais altamente competitivos. Colabora para a construção de uma visão que fortalece a mentalidade empreendedora para a inovação tecnológica. A revisão bibliográfica contribui para a análise dos diferentes fatores que interferem na construção de um ambiente favorável ao plano de negócios e o desenvolvimento de modelos mentais para a mudança da cultura organizacional.
Teaching to the Test from a Parent’s Perspective
Authors: Kettle Amy , Miller Melinda
Published: September 2022

The authors first address the unwanted consequences that come with high-stakes testing on children’s love for reading and then offer reading and writing workshops as successful alternatives to make reading enjoyable again for students.
An Interview with Alice Ensley: District Literacy Coordinator at Dalton County Schools
Authors: Tovey Shannon
Published: September 2022

This is an interview with Alice Ansley, Literacy Coordinator at Dalton County Schools (GA). Dalton County is an ethnically and language-diverse school district with the majority of students receiving free or reduced lunch. Alice Ensley has been recognized for her leadership in literacy education, particularly in regard to facing the challenges of the COVID-19 virus.
A Structured Literacy Approach to Support Striving Readers in Secondary Grades
Authors: Bart-Addison Samantha , Griffin Robert
Published: September 2022

A high school English teacher and a university literacy professor provide secondary teachers with structured literacy strategies to support striving readers in the middle and high school grades. The authors present strategies that can be utilized with diverse texts across learning contexts. As a structured literacy approach, morphological awareness and prosodic fluency are emphasized to foster deeper, more meaningful transactions between students and texts. An example of a full structured literacy lesson is also provided that includes multiple strategies and is based on a gradual release model with guided and independent reading cycles. Applicable strategies for delivery of these skills for in-person, digital, or concurrent teaching are also discussed.
Connecting a Community through a Family Literacy Project and Virtual Writing Collaboration
Authors: Katz Anne , Sledge-Tollerson Alexandra
Published: September 2022

The importance of accessing and sharing children’s literature took on new meaning as educators pivoted to remote and online learning models over the course of the past school year. In light of the pandemic, College of Education pre-service educators enrolled in a Fall 2020 Language and Literacy Development course (which is usually scheduled to meet face-to-face twice a week) was re-structured as hybrid, where a group of students was scheduled to meet partially face-to-face and partially online weekly. I planned to adapt my family literacy project collaboration with a local community center, an academic service learning assignment that I incorporate each semester as part of the course. A second community literacy project embedded in the course involved reading and discussing Look both ways: A tale told in ten blocks (Reynolds, 2019), short stories that detail experiences of middle school characters on their walk home from school. My original plan was for both middle school students and pre-service educators to draft personal place-based writing short stories- inspired by the mentor text- and participate in writing conferences. Instead, Zoom sessions were conducted in which both sets of students virtually conferenced about their writing pieces when schedules allowed. In this manner, authentic conversations about writing were being cultivated through a virtual approach.
What’s Next for Literacy Education in Georgia?
Authors: Howrey Shannon Tovey
Published: September 2022

This is an interview with Dr. Caitlin Dooley who is the Deputy Superintendent of the Georgia Department of Education.
Reimagining the Traditional Pedagogy of Literacy
Authors: Jackson Virginie , Shrewsbury Kinsey
Published: September 2022

This article is a case study that highlights how implementing strategic questions in critical literacy can engage even young readers in critical conversations. The authors address the merits of integrating technology and critical literacy into a kindergarten reading program.
Building Excitement for Reading and Building New Friendships
Authors: Bentley Erinn
Published: September 2022

This article describes a collaborative Book Bistro between my pre-service teachers and Kim’s middle school students. First, we will describe how this strategy aligns with scholarship supporting adolescent readers and pre-service teachers. We will then share the logistics and results of our event as well as suggestions for others interested in using this strategy.
Using Choral Reading with Students with Exceptionalities to Improve Reading Fluency
Authors: Bessette Harriet
Published: September 2022

Choral reading, a reading strategy that involves two or more students reading a passage in unison, where striving readers following the reading model provided by more proficient readers in a group, has long been recognized as a vehicle for improving fluency among students with exceptionalities (Kodal, & Akyol, 2018). This instructional strategy, which is the topic of this paper, provides the interpersonal modeling needed by learners with exceptionalities, while providing a safe space for internalization of fluency skills to occur.
An Analysis of Teachers' Discourse and Their Perceptions Concerncing the Use of Questioning and Feedback During Reading Instruction in Third Grade Classrooms
Authors: Holbein Marie , Farist Jennifer
Published: September 2022

The purpose of this study was to investigate teacher talk during elementary reading instruction. The study was designed to gain insight into existing discourse patterns and to understand how change in these patterns might be facilitated. The design of the study evolved after a review of existing literature on the topic of teacher talk indicated a lack of widespread, intentional focus on classroom discourse and its potential impact on student learning.
Dictionary Projects: A Defining Moment in Literacy
Authors: McKenna Beverly A. , Strauser Beverly A.
Published: September 2022

The scene is the auditorium of a high-poverty school, where every third-grader has been assembled. When a visitor explains that each child will receive a dictionary of his or her very own, looks of surprise turn to joy. Most live in homes without a dictionary. Regrettably, many have never owned a book. This scene plays out again and again each spring as we visit schools in Chatham County. After years of providing this service, we can think of no way of promoting literacy that is more visible or more rewarding. It is a simple program that teachers across the state can easily replicate in their schools at virtually no cost. In this article, we explain how.
Give the Neurological Impress Method Another Chance for One-to-One Fluency Interventions
Authors: Mitchell Melissa , Zygouris-Coe Vassiliki
Published: September 2022

Students who do not show growth from whole class (Tier 1) and small group (Tier 2) reading fluency interventions, may require one-on-one interventions that are designed to support the development of fluent oral reading. The authors of this article reintroduce the Neurological Impress Method (NIM) and provide a research-based protocol and practical recommendations for implementation. Existing research on the NIM provides evidence for giving it another chance for one-on-one reading fluency interventions.
Building Comprehension Through Explicit and Organic Vocabulary Instruction for English Learners
Authors: Gonzales Marisa , Griffin Robert
Published: September 2022

This article closely examines the relationship between vocabulary acquisition and reading comprehension, specifically for English learners. The authors first set out to identify the relationship between vocabulary knowledge and comprehension. Research-based instructional strategies are then described with discussion centering on how these strategies specifically benefit English learners. Central to the thesis is that a reader must be able to decode words and assign meaning to those words with little to no effort to fully engage in and comprehend any type of text. Due to the language barrier, some English learners have a particularly difficult time decoding and assigning meaning to words. The research presented here supports the integration of reading strategies that can be used to build English learners’ reading comprehension, both explicit vocabulary instruction combined with organic, student-centered language learning. Some of the strategies discussed include daily interactive read aloud, audio recordings of students reading, whole group shared reading experiences, and direct and explicit vocabulary instruction.
Children’s Literature to Develop Awareness and Advocacy for Social Justice
Authors: Kelley Katie , Yearta Lindsay
Published: September 2022

Children’s literature can enhance readers’ understandings of themselves and others in an increasingly diverse world. This article examines the need for inclusion and discussion of diverse literature in the classroom. Specifically, the authors describe a partnership between fifth graders and preservice teachers to digitally discuss the book, A Long Walk to Water (Park, 2010) using a student-friendly blog. Both groups broadened their worldview and the need for social justice through the reading and blogging about the selected literature. The authors share classroom implications and extensions to advocate for social action. Projects such as the one described in this article remind teachers and children that common bonds of humanity can build empathy, unite us all, and inspire us to take action for social justice.