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The purpose of this paper is to explore how web-based science curriculum materials designed to develop autonomous learners can succeed in Brunei. In this instruction, designed to prepare students to independently explore new topics, students and teachers take new roles. Students collaborate with a peer to engage in inquiry and teachers monitor progress and guide students rather than leading the class.

The authors studied two Web-based Inquiry Science Environment (WISE) units (photosynthesis and cellular respiration) developed using the knowledge integration framework. The framework promotes autonomous learning by building on the diverse ideas that students bring to science lessons and encouraging them to distinguish among their own ideas and those they encounter when using scientific visualizations. In a study on “How People Learn: Brain, Mind, Experience and School”, Bransford et al. (1999) suggest that the students’ preconceptions of how the world works must be engaged, as failing to do so may hinder them from grasping new concepts and information that are taught. Two intact classes of students from two secondary schools in Brunei each studied one of the WISE units. Observations revealed that students could work in pairs to jointly engage in inquiry with encouragement from teachers. Embedded assessments and interviews were analyzed to show how students linked observable events and scientific ideas when explaining the conversion of solar energy to chemical energy in photosynthesis.

Significant gains in knowledge integration show that Brunei students who collaboratively study WISE inquiry units can autonomously succeed. Specifically, students using WISE were able to construct complex ideas about photosynthesis and cellular respiration by linking observable events and scientific ideas while working autonomously with infrequent teacher monitoring.

The paper provides invaluable insights into ways in which web-based learning supports students to become autonomous learners.

Outlines the use of sensors employed in plant research for measuring various biophysical activities, in particular photosynthesis. Describes how an infrared gas analyzer [IRGA] takes photosynthesis measurements and looks at the advances made in these gas analyzers. Continues with an examination of other sensors used in photosynthesis research and measurement techniques used for other plant science research such as plant stress. Concludes with recent trends and applications in plant science research and lists some areas of research applications including studies of climatic change, pests and diseases and plant breeding.

This chapter briefly reviews the research related to the construct of pedagogical content knowledge (PCK) over the past 25 years. Despite the remarkable implications of the PCK conceptualization, questions remain concerning the vagueness of the construct and the studies conducted on the PCK research line, questions which may lead to new developments in defining the nature of the conceptualization, its validity, and its utility. However, agreement exists concerning the need to portray specific cases of PCK of successful teaching. The work argues for a need to develop models of teacher learning and professional development that are subject matter specific. The chapter ends with a call for basing professional development on the conceptualization of PCK.

This paper aims to assess factors that affect carbon sequestration on green roofs.

The most current academic literature related to carbon sequestration and green roofs carbon sequestration performance was reviewed.

Factors affecting carbon sequestration were discussed and classified into the following factors: plants, physical and maintenance factors. The authors’ findings are significant because they can be used to optimize green roofs performance for carbon sequestration.

Factors affecting carbon sequestration will optimize intensive green roofs performance.

Through the use of computer simulation of three biogeochemical cycles—carbon, nitrogen, and phosphorus—we have shown that DDT poisoning of ocean producers (plants) can cause their growth to be limited by nitrogen, whereas ordinarily it is limited by phosphorus. We must qualify what we have shown because we restricted the simulation by representing only two ecosystems (ocean and land), by using simplified equations for some flow rates, and finally by estimating data for some biomass values and for some flow rates. In order to remove some of the restrictions on the simulation, we are extending it so that we may include in it knowledge of our own, of ecologists, and of systems analysts. By extending it, we are increasing our ability for using it to understand, and consequently to predict and control, the behavior of the interacting biogeochemical cycles of the world.

The growth of population is outstripping our ability to prevent irreversible degradation of the natural environment and continued poverty for much of the world. Discusses possible solutions to the problem, including artificial photosynthesis which uses purely chemical methods and can be carried out on barren lands. The aim of current research is to devise chemical means of photolysis of water.

Purpose – The purpose of the research aims to observe the high growth of corn crops with a different cropping pattern.

Design/Methodology/Approach – The research is conducted based on field experiments with Group Randomized Design (hereafter RAK shortened from Cluster Random Design). The treatment of cropping pattern I is that corn crops are planted in one row with the size of plot 9 m × 4 m, and the distance planting of the crops is 70 cm × 40 cm. Cropping pattern II is that corn crops are planted in two rows with the size of plot 9 m × 4 m, and the distance planting is 70 cm × 40 cm. Cropping pattern III is that corn crops are planted in three rows with the size of plot 9 m × 4 m, and the distance among the crops is 70 cm × 40 cm.

Findings – The result of research shows that the highest corn crops are from cropping pattern II.3 at age 15 and 30 after planting time (called HariSetelahTanam or HST). The increase of cropping rows from one row to two rows indicates that intra-specific competition are more dominant. The growth of crops is faster because they need full sunlight at vegetative and generative stages. The need of full sunlight at the growing stage causes the increasing of stem height of crops to enable the crops to receive the sunlight optimally due to the continuity of photosynthesis process. The increasing growth of stem diameter is in accordance with the growth speed of height plant at the same age.

Research Limitations/Implications – This research intends to find out the best growing process of the plant. Further research is needed to study the outcome of final product of the plant.

Practical Implications – This is to see the utilization of the best cropping pattern and optimal land utilization.

Originality/Value – High growth of corn crops and stem diameter (Zea may, S) with a different cropping pattern has not yet been published.

In this work we will discuss the suitability of carbon isotope analysis in plants for the assessment of environmental changes and their effects on crops and natural systems. For C₃ species, carbon isotope composition (δ¹³C) of plant tissues constitutes an integrated record of the miscellaneous climatic and physiological factors that affect carbon assimilation and/or stomatal conductance. Here we present a literature review on the relationship between different environmental parameters and δ¹³C in both herbaceous plants and trees, including some examples and case studies. We will also consider the applicability of some of these relationships in palaeoecological studies, as well as for the assessment of climate change dynamics and its implications. Major advantages and limitations of this technique are further discussed.

Potato (Solanum tuberosum L. cv. Kara) was grown in Open‐Top Chambers (OTCs) in Northern Egypt at ambient (ca 350 ppm) or doubled CO₂ (ca 690 ppm) either in charcoal‐filtered air (15 nl l‐1) or in non‐filtered ambient air (78 nll‐1 O₃) to investigate the changes in physiology and yield under long‐term elevated CO₂ and/or O₃ throughout 100 days. Ambient O₃ level reduced net photosynthetic rates, number and weight of tubers by 18 per cent, 41 per cent and 21 per cent, respectively, whereas elevated CO₂ caused the opposite effect where it increased the same parameters by 44 per cent, 37 per cent and 20 per cent, respectively. Significant O₃ x CO₂ interactions were detected. However, O₃ caused an increase in GR and POD by 18 per cent and 35 per cent, respectively, while CO₂ caused an increase in POD only by 46 per cent, and there was no effect of O₃ and/or CO₂ on other enzymes. The results of this study are discussed in relation to predicted atmospheric changes.

In the last 50 years, the Mediterranean Basin has experienced a doubling of its population. This demographic growth has been the cause of extensive land use changes that have undermined the ecological stability of large portions of its fragile ecosystems. The population of the Mediterranean countries is expected to grow by another 20 percent in the next 25 years, further increasing the pressure on the natural resources. In this paper, we present a methodology combining photosynthetic activity and human settlements both derived from satellite data for monitoring the effects of human settlements on the environment. We found photosynthesis decreasing as one moves from rural to urban settings in the north and increasing in the south Mediterranean countries. Regional scale assessments using this approach may help policy makers in designing appropriate measures to combat further environmental degradation.