bluuebunny/crossref_metadata_2025_split huggingface dataset:
Controlled exposure of CuO thin films through corrosion-protecting, ALD-deposited TiO2 overlayers
Authors: Mehrabi Hamed , Eddy Caroline G. , Hollis Thomas I. , Vance Jalyn N. , Coridan Robert H. 
Published: September 2021

Abstract
Ultra-thin film coatings are used to protect semiconductor photoelectrodes from the harsh chemical environments common to photoelectrochemical energy conversion. These layers add contact transfer resistance to the interface that can result in a reduction of photoelectrochemical energy conversion efficiency of the photoelectrode. Here, we describe the concept of a partial protection layer, which allows for direct chemical access to a small fraction of the semiconductor underlayer for further functionalization by an electrocatalyst. The rest of the interface remains protected by a stable, inert protection layer. CuO is used as a model system for this scheme. Atomic layer deposition (ALD)-prepared TiO2 layers on CuO thin films prepared from electrodeposited Cu2O allow for the control of interfacial morphology to intentionally expose the CuO underlayer. The ALD-TiO2 overlayer shrinks during crystallization, while Cu2O in the underlayer expands during oxidation. As a result, the TiO2 protection layer cracks to expose the oxidized underlying CuO layer, which can be controlled by preceding thermal oxidation. This work demonstrates a potentially promising strategy for the parallel optimization of photoelectrochemical interfaces for chemical stability and high performance.
Experimental and computational investigations of TiIrB: a new ternary boride with Ti1+x
Rh2−x+y
Ir3−y
B3-type structure
Authors: Scheifers Jan P. , Gibson Kate A. , Fokwa Boniface P. T. 
Published: September 2021

Abstract
A new ternary phase, TiIrB, was synthesized by arc-melting of the elements and characterized by powder X-ray diffraction. The compound crystallizes in the orthorhombic Ti1+x
Rh2−x+y
Ir3−y
B3 structure type, space group Pbam (no. 55) with the lattice parameters a = 8.655(2), b = 15.020(2), and c = 3.2271(4) Å. Density Functional Theory (DFT) calculations were carried out to understand the electronic structure, including a Bader charge analysis. The charge distribution of TiIrB in the Ti1+x
Rh2−x+y
Ir3−y
B3-type phase has been evaluated for the first time, and the results indicate that more electron density is transferred to the boron atoms in the zigzag B4 units than to isolated boron atoms.
Diversity and Distribution of Bracket Fungi in Mt. Kilakiron, Bukidnon, Philippines
Authors: Cababan Mc Arthur Lequin , Jaranilla Aprille Kake Ora , Bastatas Mariane Catayas , Salvane Chazzel Feel Comonong , Toldo Uzziel Campuso 
Published: September 2021

Fungi have a lot of important function in the bionetwork resembling to decomposition and even nutrient cycling with respect to its symbiotic relationships with trees and other plants. This study aimed to assess the diversity and distribution of bracket fungi in Mt. Kilakiron, Portulin, Pangantucan, Bukidnon. Thus, floristic survey was conducted in one of the mountain of Mindanao to provide information as to what and how many species of bracket fungi are present in Mt. Kilakioron, Bukidnon, Philippines. Â 40 total species belonging to 17 genera and 5 family was collected and assessed. 12 individuals of Trametes versicolor were observe which favors dwellings with low temperature and high altitude are. Additionally, study revealed that most types of bracket fungi initiate in the site are decomposers and saprophytic in nature which contributes a lot in the process of putrefaction. The species of bracket fungi in Mt. Kilakiron clearly shows abundant and provides a large contribution to the ecosystem having high Shannon diversity index. The significance of each environmental factor is discussed in relationship to the ecology of the species. Bracket fungi are reliant on the climatic and conservational settings which makes them as excellent natural pointers of ecosystem in the forests of Mindanao Island, Philippines.
Utilisation of 2,2DCP by Staphyloccocus aureus ZT and In Silico Analysis of Putative Dehalogenase
Authors: Zaidi Zatty Zawani , Huyop Fahrul 
Published: September 2021

Halogenated compound such as 2,2-dichloropropionic acid is known for its toxicity and polluted many areas especially with agricultural activities. This study focused on the isolation and characterization of the bacterium that can utilise 2,2-dichloropropionic acid from palm oil plantation in Lenga, Johor and in silico analysis of putative dehalogenase obtained from NCBI database of the same genus and species. The bacterium was isolated using an enrichment culture media supplemented with 20 mM 2,2-dicholoropropionic acid as a carbon source.Â The cells were grown at 30ËšC with cells doubling time of 2.00Â±0.005 hours with the maximum growth at A680nm of 1.047 overnight. The partial biochemical tests and morphological examination concluded that the bacterium belongs to the genus Staphylococcus sp.. This is the first reported studies of Â Staphylococcus sp. with the ability to grow on 2,2-dichloropropionic acid. The genomic DNA from NCBI database of the same species was analysed assuming the same genus and has identical genomic sequence.Â The full genome of Staphylococcus sp. was screened for dehalogenase gene and Â haloacid dehalogenase gene was detected in the mobile genetic element of the species revealed that the dehalogenase sequence has little identities to the previously reported dehalogenases.The main outcome of the studies suggesting an in situ bioremediation can be regarded as a natural process to detoxify the contaminated sites provided that the microorganisms contained a specialised gene sequence within its genome that served the nature for many long years. Whether microorganisms will be successful in destroying man-made contaminants entirely rely on what types of organisms play a role in in situ bioremediation and which contaminants are most susceptible to bioremediation.Â
Productivity of Arrowroots and Taro Grown Under Superior Teak Clones with Several Levels of Stand Density
Authors: Prehaten Daryono , Hardiwinoto Suryo , Naâ€™iem Mohammad , Supriyo Haryono , Widiyatno Widiyatno , Rodiana Dian 
Published: September 2021

Perum Perhutani has an important role in providing food and wood for people. Diversity and diversification of food will reduce the need for one type of food, namely rice as a staple food. Some tuber and rhizome are source of alternative foodstuffs, such as taro and arrowroot. This study aimed to determine the suitability and productivity of arrowroot and taro planted under old superior teak clones with several levels of stand density. Arrowroot and taro were planted under 14-year-old teak stands with 4 levels of density. Both plants were planted in the form of an array, measuring of 3m x 15m, with a spacing of 75cm x 75cm between plants. They were arranged in Randomized Completely with Block Design (RCBD) placed in 4 blocks of observation as replications.Â The results showed that under superior teak clone had the potential to be planted with arrowroot and taro. Teak stand density influenced significantly some characteristics of arrowroot (leaves number, leaves area, stem height, stem diameter, root length) and taro (stem diameter, tuber diameter). Arrowroot productivity per hectare increased with low density of teak stands, accounted for 55, 59, 80, and 88 kg respectively. Meanwhile, taro productivity from very high to low teak density were 365, 301, 523, and 426 kg/ha. The novelty of this study is that there is no record of intercropping studies on old superior teak clones, so this is among the first studies. The benefit of from this research result, it could be employed by Perhutani to support the Indonesian government in the national food security program
Flowers and Value of Conservation in The Culture of Hindu Community in Bali
Authors: Darma I Dewa Putu , Sutomo Sutomo , Hanum Siti Fatimah , Iryadi Rajif , Rahayu Ayyu 
Published: September 2021

Balinese Hindu community cannot be separated from plant in their life. The information on plant species and how to utilize them are easy to find but limited information about the potency of flowers in the Balinese Hindu community. Flowers have a meaning as sincerity, a symbol of Sang Hyang Widhi, the valour, and also have mythological values. This research aimed to determine the species of flowering plants that are often used for ceremonial and understand the meaning, the cultural conception related to conservation education. The study was carried out in four locations in Tabanan Regency (Baturiti, Penebel, Marga, and Tabanan). Data were collected using an interview with purposive sampling. Data analysis based on the value of Relative Frequency (FR) which is indicated plant most widely used. Â A total of 36 species of flowers are used in traditional Hindu religious ceremonies, of which 29 species are cultivated plants and 7 species are still wild. There are ten of plants which have high FR value, such as: Cananga odorata (FR 0.069), Impatiens balsamina (FR 0.069), Hydrangea macrophylla (FR 0.069), Plumeria acuminata (FR 0.069), Tagetes erecta (FR 0.069), Magnolia champaca (FR 0.069), Gomphrena globosa / bunga ratna (FR 0.047), Gardenia jasminoides / jempiring (FR 0.039), Nymphaea spp./ tunjung (FR 0.030), and Hibiscus rosa-sinensis L./ pucuk (FR 0.030). This research revealed the role of flower in Hindu ceremony and describe the strategic plant conservation due to culture of Balinese Hindu community. Finally, this research expected to documented local knowledge about flowers used as Hindu religious ceremonies, to provide an understanding of the meaning and conceptions of culture related to conservation education.
Antibacterial Activity and Flavonoids Content of Artemisia cina Berg. ex Poljakov Ethyl Acetate Extracts
Authors: Kasmiyati Sri , Kristiani Elizabeth Betty Elok , Herawati Maria Marina , Sukmana Andreas Binar Aji 
Published: September 2021

The medicinal plant-derived bioactive compounds have a potential for many biological activities, including antimicrobial activity. Artemisia cina is a medicinal plant from the Compositae family with the potential of having antitumor, antifungal, and antibacterial activity. This study aimed to determine the antibacterial activity and the flavonoid content of A. Cinaâ€™s ethyl acetate extract. Plants samples were extracted by ethyl acetate maceration method. Antibacterial activity was tested against Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa) and Gram-positive bacteria (Bacillus subtilis and Staphylococcus aureus) by a disk diffusion method using 25, 50, and 100 mg/l extract concentrations. The flavonoid contents (quercetin and kaempferol) were measured using High-Performance Liquid Chromatography. The extracts of diploid and polyploid A. cina displayed some antibacterial activity, with the Gram-negative bacteria being more resistant than the Gram-positive counterpart. However, no significant difference was observed between the diploid and polyploid extracts. As for the flavonoid content, the highest quercetin content (0.5501 mg/ml) was found in the polyploid A. cina (J), while the highest kaempferol content (0.5818 mg/ml) was observed in the diploid A. cina (KJT). Although A. cina is widely grown in Indonesia, compared to other Artemisia species, A. cina has not been widely studied, especially its antibacterialÂ potential and in related to its flavonoid content and the use of ethyl acetate as the extraction solvent. Â This study reveals the potential of A. cina as a natural antibacterial agent.Â
The Influence of Inducers on the Coltricia cinnamomea Laccase Activity and its Ability to Degrade POME
Authors: Subowo Yohanes Bernard , Sugiharto Arwan 
Published: September 2021

Some species of Basidiomycetes, specifically white rot groups, produce three ligninolytic enzymes, namely, Lignin Peroxidase (LiP), Manganese Peroxidase (MnP) and Laccase (Lac), which have low activity in degrading Palm Oil Mill Effluent (POME). The research objective was to obtain the data on the ability of the Coltricia cinnamomea to produce LiP, MnP, and Lac enzymes to degrade POME. This research also studied the effect of sucrose, alcohol, veratryl alcohol, CuSO4 and ZnSO4,as inducers. Isolates of Coltricia cinnamomea, which were stored in a PDA media at -20℃ were obtained from the Microbiology section of the Research Center for Biology (LIPI). Furthermore, the growth media used were DM, Bean sprout Extract (TE) and PDB. The result indicated that PDB is the most suitable growth media for the production of ligninolytic enzymes, because in this medium these enzymes showed the highest activity. It was also observed that sucrose increased the laccase activity by 40.80%. Furthermore, Coltricia cinnamomea was able to reduce the concentration of Poly R-478 by 60.74%, after the addition of ZnSO4. In addition, it degraded and decreased the color and COD of POME, by 72.63% and 91.19% respectively, after the addition of veratryl alcohol, and incubation for 10 days. Therefore, this fungus can be used to degrade POME in order to prevent environmental pollution. Coltricia cinnamomea has not been used for POME degradation. By using Coltricia cinnamomea, we obtained new data regarding the activity of laccase and its ability to degrade POME.
Effects of Light Environments on Leaf Traits and Phenotypic Plasticity of Canna indica
Authors: Sasaerila Yorianta Hidayat , Sakinah Sakinah , Noriko Nita , Wijihastuti Risa Swandari 
Published: September 2021

Canna indica L (African arrowroot), is a beneficial, multi-use tropical perennial with a worldwide distribution, but relatively unexplored. This plant has the potential to be developed as a food crop in an intercropping system, utilizing idle land under commercial plantations such as rubber or teak. This study aimed to determine the best light-growing conditions for C. indica. A completely randomized design was used with growth light as the treatment consisting of 25%, 50%, and 100% of natural light, respectively. Leaf traits, growth characteristics, and phenotypic plasticity were used to measure C. indica’s response to different treatments. The results of this study showed that C. indica grown in low light has the best growth with increased height, leaf area, root and shoot dry weights, but decreased leaf thickness, which caused the increase in specific leaf area, leaf area ratio, and leaf weight ratio, but decreased root to shoot ratio. Based on leaf traits and biomass allocation, the phenotypic plasticity index was 0.23, a typical number for shade tolerant species. These findings were the first time to be reported for C. indica. For agroforestry practices, it can be recommended that C. indica be used as an intercropping plant under tree canopies.
The Density and Viability of Metarhizium anisopliae Conidia on Several Growth Media
Authors: Indriyanti Dyah Rini , Bintari Siti Harnina , Setiati Ning , Alfiyan Jamil Maulana Zahriyan 
Published: September 2021

Metarhizium anisopliae is a parasitic fungus on insects, and thus called entomopathogenic fungus. This fungus is used as a biological control agent for insect pests. Fungal propagation can be done using a variety of media. The purpose of this study was to analyze the growth of M. anisopliae on four types of media, with conidial density and viability as the growth parameters. This research was conducted at the Laboratory of Microbiology, Universitas Negeri Semarang. This study was an experimental research used a Completely Randomized Design (CRD) with one factor and four treatments: Control (PDA/Potato Dextrose Agar medium), Treatment I (ELSA/Extract Larvae Sucrose Agar medium), Treatment II (CWSA/Coconut Water Sucrose Agar medium), Treatment III (CWELSA/Coconut Water and Extract Larvae Sucrose Agar medium). The and results showed that there was an effect of growth media on the density and viability of M. anisopliae conidia. CWELSA media had the highest conidial density (2.91 x 108 cfu/mL) and viability (97.17%). CWSA media had 2.82 x 108 cfu/mL and 95.33%. PDA media had 2.25 x 108 cfu/mL and 92.83%. ELSA media had 1.64 x 108 cfu/mL and 90.83%. The high conidial density and viability of M. anisopliae is CWELSA medium. This study is as an alternative growth medium to improve the quality of M. anisopliae propagation.
INVERTIR EN BOLSA: EXPECTATIVAS, VOLATILIDAD Y GANANCIAS
Authors: Mauricio Pachas Pablo 
Published: September 2021

Se	presenta	a	la	Bolsa	de	Valores	de	Lima	como	una	importante	y	lucrativa	alternativa	para	los	inversionistas,	asimismo	se	destaca	que	en	los	últimos	cinco	años	la	rentabilidad	promedio	anual	ha	superado	el	0%,	convirtiéndose	en	la	Bolsa	más	rentable	del	mundo	en	el	2006. En	ese	sentido	la	marcada	volatilidad	por	la	influencia	del	mercado	externo	produce	cambios	marcados	en	las	cotizaciones	de	las	principales	acciones	que	cotizan	en	el	mercado	internacional;	en	ese	contexto	se	debe	entender	a	este	mercado	como	inversiones	de	largo	plazo,	al	que	se	deben	destinar	recursos	no	prioritarios	para	el	inversionista.
MODELO DE REGRESIÓN LOGÍSTICA
Authors: Hurtado Dianderas Eulogio 
Published: September 2021

La	asignatura	de	Operaciones	y	Logística	constituye	un	elemento	fundamental	en	la	formación	académica	de	un	Magíster	en	Administración	ya	que	proporciona	al	estudiante	las	herramientas	necesarias	para	la	toma	de	decisiones	en	las	áreas	de	abastecimiento,	transportes	y	comunicaciones	en	toda	empresa. El	presente	artículo	trata	sobre	el	desarrollo	y	aplicación	de	un	modelo	de	regresión	logística	que	aporta	los	conocimientos	para	una	mejor	administración	de	los	recursos	materiales	con	la	debida	calidad,	cantidad	costos	y	oportunidad	requeridos.
CÓMO VEN SU FUNCIÓN LOS AUDITORES DE PROCESO AUTOMÁTICO DE DATOS (PAD)
Authors: Rivera León Félix A. 
Published: September 2021

La	manera	en	que	los	auditores	de	Proceso	Automático	de	Datos	(PAD)	ven	su	función	es	muy	importante	para	el	éxito	de	cualquier	auditoría,	ya	sea	interna,	externa	o	de	terceros.	Desafortunadamente	el	administrador	de	Proceso	de	Datos	(PD)	a	menudo	considera	al	auditor	como	“el	hombre	que	dispara	a	los	heridos	después	de	la	batalla”,	mientras	que	el	auditor	de	PAD	percibe	su	función	como	de	mantenimiento	preventivo	en	el	análisis	y	evaluación	de	la	confiabilidad	e	integridad	de	los	sistemas	de	procesamiento	de	datos.	Este	artículo	discute	la	manera	en	que	el	auditor	de	PAD	y	la	administración	de	PD	ven	la	función	de	auditoria	y	sugiere	cómo	pueden	trabajar	juntos	para	mejorar	esa	función.
DESARROLLO ECONÓMICO Y UNIVERSIDAD
Authors: Narváez Liceras Alejandro 
Published: September 2021

La	competitividad	de	una	economía	es	el	reflejo	de	su	productividad;	es,	en	consecuencia,	el	fundamento	de	su	crecimiento	potencial	y	por	último	del	nivel	de	bienestar	de	una	nación.	Para	conseguir	aumentos	de	la	productividad	es	igualmente	necesario	lograr	una	mayor	dotación	de	capital,	con	más	intensidad	en	el	factor	trabajo	y	la	forma	de	capital	más	importante	de	hoy	en	día	es	la	constituida	por	la	educación,	las	habilidades	de	las	personas	que	trabajan,	las	tecnologías	disponibles	y	la	capacidad	de	la	sociedad	para	fomentar	talentos	que	asuman	riesgos,	adopten	innovaciones	y	creen	empresas	en	sectores	de	grandes	ganancias	de	productividad	e	intensivos	en	valor	agregado.
LA NUEVA GESTIÓN PÚBLICA Y SU INCIDENCIA EN LA MUNICIPALIZACIÓN DE LA EDUCACIÓN PERUANA
Authors: Bustamante Sánchez de Trujillo Yolanda 
Published: September 2021

Es	posible	mejorar	la	educación	peruana	y	para	ello	es	preciso	construir	una	nueva	actitud	hacia	la	educación	que	abra	espacio	a	un	nuevo	compromiso	que	permita	un	desarrollo	humanista,	integral	y	centrado	en	la	plena	realización	de	las	personas.	Se	precisa	de	un	aprendizaje	continuo	en	el	marco	de	la	Nueva	Gestión	Pública	que	promueva	la	descentralización	de	los	servicios	públicos,	la	participación	ciudadana	y	la	eficiencia	de	los	servicios	del	Estado	para	lograr	una	educación	con	la	transferencia	de	poderes	y	responsabilidades	a	los	agentes	locales	(municipalidades)	y	el	control	de	los	servicios	educativos.
DESAFIOS DE LA EDUCACION EN EL FUTURO DE LA UNIVERSIDAD
Authors: Fairlie Frisancho Ebor 
Published: September 2021

El	presente	artículo	de	investigación	reúne	algunas	opiniones	sobre	lo	que	podemos	esperar	de	la	educación	en	un	futuro	quizás	no	tan	lejano,	al	menos	en	América	Latina	y	España.	Las	opiniones	son	de	investigadores	de	universidades,	quienes	analizan	los	objetivos,	desafíos,	inversión,	cultura	y	estrategias. El	papel	del	Banco	Mundial	es	imponderable	para	la	mejora	de	los	estudios	y	se	presentan	diversas	alternativas	para	tomar	en	cuenta	y	entrar	al	reto	de	mejorar	la	educación	en	los	centros	de	enseñanza	superior	en	concordancia	con	los	estándares	de	calidad	establecidos	por	los	países	desarrollados.
PARQUES TECNOLÓGICOS REGIONALES EN EL PERÚ *
Authors: Espinoza Herrera Nemesio 
Published: September 2021

El	estudio	plantea	como	objetivo	observar	y	analizar	las	condiciones	que	son	necesarias	para	la	constitución	de	parques	tecnológicos	en	las	regiones	del	Perú	dentro	del	marco	de	descentralización	nacional,	y	plantear	algunas	consideraciones	que	permitan	promover	la	real	vinculación	Estadoempresa-universidad	sobre	la	base	de	la	ciencia,	tecnología	e	innovación.	Método: para	fines	del	presente	estudio	se	han	visitado	diferentes	regiones	del	país	para	observar	la	situación	de	la	interrelación	entre	el	Estado,	las	empresas	y	las	universidades	en	el	proceso	del	desarrollo	económico	y	social	regional.	Resultados:	No	existe	en	el	Perú	ninguna	experiencia	relacionada	a	los	parques	tecnológicos	ni	iniciativas	para	constituirlos,	hecho	que	corrobora	la	situación	de	atraso	científico	y	tecnológico	del	país.	Conclusión: En	el	contexto	de	la	sociedad	del	conocimiento	propia	del	siglo	XXI	y	del	tercer	milenio	es	manifiesta	la	imperativa	necesidad	de	promover	la	constitución	de	parques	tecnológicos	en	las	regiones	del	Perú,	a	fin	de	promover	el	desarrollo	sostenido	y	sostenible	del	país	sobre	base	de	ciencia,	tecnología	e	innovación.
LOS NUEVOS PARADIGMAS EMPRESARIALES
Authors: Begazo Villanueva José Domingo 
Published: September 2021

Nos hallamos en los albores de una nueva forma de Sociedad, tan distinta de la actual que no podemos imaginarla. Señalemos algunos de los elementos que empiezan a tomarse síntomas de esa nueva realidad: El Surgimiento de tecnología de avanzada, sobre todo Ja derivada de la informática y la micro­electrónica, de la biología molecular y la ingeniería genética que, por requerir de otros materiales (los compositos); otro manejo de la energía y de la organización empresarial y social, están iniciando Ja construcción de un mundo diferente. 2. Explosivo aumento de Ja población mientras se extienden el hambre y la pobreza, el desempleo funcional y estructural (tecnolégico), las migraciones y los conflictos étnicos. Disolución del enfrentamiento ideológico entre capitalismo y socialismo, crisis de representatividad de los partidos y organi­zaciones políticas. Prevalencia de las ciencias exactas o ciencias de primer orden sobre las ciencias fllosóficas o pensantes (ciencias de segundo orden). 3.	Aumento de la ínter­dependencia de las na­ciones, mientras simultáneamente, cambia la noción de autonomía. Se desdibuja el con­cepto de Nación­ Estado y se marcha hacia una globalización con descentralización. 4. Probable cataclismo ecológico. La biosfera; esa delgada y frágil película de vida que recubre nuestro planeta, se encuentra cada vez más deteriorada. 5. La formación de bloques económicos, dados por los bloques del Tratado de Libre Comercio (EE.UU. Canadá y México): La Unión Europea (ratificada con la emisión de un moneda única «el euro», a partir del año 2002) y La Cuenca del Pacífico liderada por Japón y el surgimiento de numerosas aso­ciaciones comerciales regionales.