19,397 research outputs found
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
Aline Pettersson : piedra que rueda
1 archivo PDF (3 páginas); incluye ilustraciones en blanco y negro. fhtre
- …