Web content analysis for Operations Management and Technology research in the international context

The web content analysis is being increasingly used as a research technique by many researchers in the Operations Management and Technology topic

Looking backward to look forward: water use and economic growth from a long-term perspective

Recent research has examined the relationship between natural resources and economic growth. Considered vitally important, not only for humanity’s well-being but also for ecosystem integrity, the relationship between water use and economic growth has traditionally garnered little attention by analysts. This paper studies water use trends from 1900 to 2000 throughout the world, and their main determinants. To do this, we first analyse historical water use trajectories. Second, to proceed with the determinants of water use, we reformulate the IPAT equation (Ehrlich and Holdren, 1971; Commoner et al. 1971), decomposing water use trends into changes in economic demands and in water use intensity. Finally, a simple scenario analysis is conducted, to project future water use trends under different economic, demographic and technological assumptions. The empirical evidence shows that economic and population growth have been crucial for explaining the increase in water use over the past 100 years, with significant regional differences. Nevertheless, the decline in water use intensity has been responsible for a significant reduction in the growth of total water use.Water use, environmental impacts, economic growth, IPAT model, scenario analysis

Mother-child interaction within the Zone of Proximal Development. Impact of adult educational level and socio-affective proximity on the effectiveness of tutoring.

Abstract de póster presentado a VI International Conference “Early Childhood Care and Education”, Lomonosov Moscow State University –MSU (Moscow, Russia), Mayo 2017.Research problem. Adult-child interaction within the zone of proximal development plays a central role in child cognitive development. The effectiveness of teaching to promote learner competence during a joint problem solving session depends on the accuracy of the zone of proximal development perceived in the mind of the tutor. Therefore, it is related to such variables as the tutor’s educational level (formal education promotes more abstract and flexible mental representations of the cognitive demands of the task) and the socio-affective proximity between interlocutors (shared experiences enable the tutor to determine the zone of sensitivity to instruction and to form a more accurate hypothesis of the child’s level of competence and their need for assistance). Aims and methods. This study aims to estimate the effects of adult educational levels and socio-affective proximity between interlocutors on the effectiveness of informal tutoring. The participants comprised 66 boys and girls aged 3-5 years and 66 women with different educational levels and varying degrees of socio-affective proximity with the child with whom they interacted (mothers who lived with their children, mothers who visited their children at residential care centers, and women previously unknown to the children). Dyadic interaction in a classification task was assessed with microgenetic analysis using a codification system following sociogenetic principles. Results. Educational level does not predict tutoring effectiveness; socio-affective proximity does. Mothers with low educational levels are effective tutors when they maintain a high degree of socio-affective proximity with their children. The principal keys to effective tutoring associated with socio-affective proximity are: a) encouraging the autonomy of the child: avoiding both initial aid when placing each new piece and highest level aid which solves completely the operation; and b) adjusting the assistance provided according to the competence demonstrated by the child: following the contingency rule (especially in the provision of proactive aids), and temporarily tolerating errors, providing the opportunity for the child to become aware of their own mistakes. Conclusion and findings. These findings are noteworthy to design future social intervention programs focused to instruct parents with low educational level on the importance of frequent and appropriate interactions with their children.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

PENGGUNAAN MEDIA GAMBAR UNTUK MENINGKATKAN MINAT BELAJAR MEMBACA PADA MATA PELAJARAN BAHASA INDONESIA DI KELAS 1 MI DARUNNAJAH LEBANISUKO WRINGINANOM GRESIK TAHUN AJARAN 2016/2017

Rosa Ana Nihlah, 2017, Penggunaan Media Gambar Untuk Meningkatkan Minat Belajar Membaca Pada Mata Pelajaran Bahasa Indonesia Di Kelas 1 MI Darunnajah Lebanisuko Wringinanom Gresik Tahun Ajaran 2016/2017, Skripsi, Program Studi Pendidikan Guru Sekolah Dasar, Universitas Nahdlatul Ulama’ Surabaya, Pembimbing (I) M. Shodiq, S.Pd.,M.M. Pembimbing (II) Novi Rahmania Aquariza S.Pd.I.,M.Pd. Penelitian ini dilatarbelakangi oleh permasalahan kurangnya minat belajar membaca siswa pada Mata Pelajaran Bahasa Indonesia di MI Darunnajah Lebanisuko Wringinanom Gresik. Siswa kurang diberikan motivasi dalam proses pembelajaran, hal ini terjadi karena kurangnya media dalam menyampaikan materi sehingga suasana pembelajaran sering membuat jenuh. Oleh karena itu, guru berupaya menggunakan media gambar sebagai media pembelajaran agar tercipta pembelajaran yang menarik dan menyenangkan. Tujuan penelitian ini yaitu untuk mengetahui hasil belajar peserta didik setelah menggunakan media gambar. Jenis penelitian yang digunakan dalam penelitian ini adalah deskriptif kualitatif dengan rumus prosentase. Data dan sumber data penelitian menggunakan penelitian di MI Darunnajah Lebanisuko Wringinanom Gresik dengan subjek kelas 1 yang berjumlah 15 anak. Teknik pengumpulan data menggunakan teknik observasi, dokumentasi, wawancara, dari analisis data bahwa pembelajaran menggunakan media gambar sudah berjalan sangat baik dengan prosentase 60% setelah menggunakan media gambar. Dapat disimpulkan bahwa pembelajaran menggunakan media gambar dalam meningkatkan minat belajar membaca MI Darunnajah Lebanisuko Wringinanom Gresik sudah baik

Maize production under different complementary irrigation regimes in Río cuarto, Córdoba, Argentina. I. Yield and grand yield components

El maíz (Zea mays L.) es uno de los principales cultivos de la Pampa Húmeda de Argentina. El objetivo de este trabajo fue evaluar los efectos del riego complementario sobre el rendimiento de grano y sus componentes. El mismo se llevó a cabo en el ciclo agrícola 2001-2002, en el campo experimental de la Universidad Nacional de Río Cuarto. Se usó un diseño completamente al azar con 5 tratamientos y 4 repeticiones. Para efectuar la programación de los diferentes riegos se dividió el ciclo del cultivo en tres etapas: precrítico, crítico y poscrítico. Para la determinación del momento de riego se realizó un balance hídrico. El rendimiento de grano no mostró diferencias significativas en los cuatro tratamientos con riego, sin embargo, hubo diferencia significativa (α = 0,05) entre los tratamientos regados y no regados. En promedio el rendimiento en grano en los tratamientos regados fue de 72 % mayor que en el tratamiento sin riego. Los componentes del rendimiento fueron afectados significativamente (α = 0,05) por la falta de riego. La cantidad de agua aplicada varió entre 360 y 300 mm y el agua total consumida en el ciclo del cultivo (según el balance hídrico) fue para los tratamientos con riego, de 575 mm y para el testigo de 308 mm. La eficiencia del uso de agua para grano fue de 2.75 kg.m-3, en promedio.Maize (Zea mays L.) is one of the major crops grown in Humid Pampas of Argentina. The objective of this paper was to assess the impact of complementary irrigation on maize grain yield and its components. This research work was carried out during the 2001-2002 agricultural cycle at the experimental field site of the National University of Río Cuarto. A randomized complete design with 5 treatments and 4 replications was used. In order to schedule irrigations, the crop cycle was divided in three stages: pre-critical, critical and postcritical. Irrigation scheduling was based on a water balance. Grain yield showed no significant differences in the four irrigated treatments; however, there were significant differences (α = 0.05) between irrigated and rain fed treatments. On average, grain yield with the irrigated treatments was 72 % higher than with the rain fed treatment. Yield components were greatly affected (α = 0.05) by lack of irrigation. The amount of water applied ranged between 360 and 300 mm; total crop water use was 575 mm in the case of irrigated treatments, and 308 mm with the control. Grain water use efficiency, average, was 2.75 kg.m-3.Fil: Rivetti, Ana Rosa

Aprender Matemática en la Universidad: la perspectiva de estudiantes de primer año

This work integrates a project that studies the characteristics of Mathematics teaching at universitylevel, in the dimensions: knowledge, students and teachers. In this research didactical aspects aretackled from the Anthropological Theory of Didactics framework (Chevallard, 1999), and cognitiveaspects from the Theory of Critical Meaningful Learning (Moreira; 2000). Here, the results of a testmade by university students of a Calculus course are discussed. The main results show that, thesestudents prefer to play down their topos in the study process. They are few compromised andresponsible about learning, since they are interested in acquire information for to pass, in lieu ofplanning meaningful and critical learning

Los tesoros de la memoria

_Ensayo memorialístico en el que se da un recorrido por la vida y la obra de Josefina Vicens. Aspectos importantes de su personalidad, así como algunos factores determinantes en su vida que más tarde se verán reflejado en su obra son algunos elementos que se tratan en el presente ensayo como un homenaje a la escritora

Analysis Of The Management Of A Didactic Device Formulated In The Framework Of The TAD

En este trabajo se describen resultados de la gestión de un dispositivo didáctico por un estudiante de profesoradoen matemática. La implementación se realizó en un curso de quinto año de la escuela secundaria Argentina. Lapropuesta didáctica posibilitó la realización de algunos gestos propios del paradigma del cuestionamiento delmundo en las condiciones actuales de la escuela secundaria. En este trabajo se profundiza en los resultados delestudio de la última situación propuesta, que tiene como objetivo evaluar el estudio realizado.This paper describes the results of the management of a didactic device by a mathematics trainee. The implementation was made in a fifth year of the Argentine high school. The didactic proposal made possible the realization of some gestures of the world question paradigm in the current conditions of the high school. In this paper, the study results of the last proposed situation are deepened. This situation has as aim to assessment the study carried out.Fil: Corica, Ana Rosa. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Núcleo de Investigación en Educacion Ciencia y Tecnologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

Assessing the consistency and microbiological effectiveness of household water treatment practices by urban and rural populations claiming to treat their water at home: a case study in Peru.

BACKGROUND: Household water treatment (HWT) can improve drinking water quality and prevent disease if used correctly and consistently by vulnerable populations. Over 1.1 billion people report treating their water prior to drinking it. These estimates, however, are based on responses to household surveys that may exaggerate the consistency and microbiological performance of the practice-key factors for reducing pathogen exposure and achieving health benefits. The objective of this study was to examine how HWT practices are actually performed by households identified as HWT users, according to international monitoring standards. METHODS AND FINDINGS: We conducted a 6-month case study in urban (n = 117 households) and rural (n = 115 households) Peru, a country in which 82.8% of households report treating their water at home. We used direct observation, in-depth interviews, surveys, spot-checks, and water sampling to assess water treatment practices among households that claimed to treat their drinking water at home. While consistency of reported practices was high in both urban (94.8%) and rural (85.3%) settings, availability of treated water (based on self-report) at time of collection was low, with 67.1% and 23.0% of urban and rural households having treated water at all three sampling visits. Self-reported consumption of untreated water in the home among adults and children <5 was common and this was corroborated during home observations. Drinking water of self-reported users was significantly better than source water in the urban setting and negligible but significantly better in the rural setting. However, only 46.3% and 31.6% of households had drinking water <1 CFU/100 mL at all follow-up visits. CONCLUSIONS: Our results raise questions about the usefulness of current international monitoring of HWT practices and their usefulness as a proxy indicator for drinking water quality. The lack of consistency and sub-optimal microbiological effectiveness also raises questions about the potential of HWT to prevent waterborne diseases