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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：The distribution on periods of the continued fraction of $\sqrt{d}$
$sqrt{d}$ 连续分数 周期
2023/4/18
The continued fraction is a very old and classical object. Its period is closely related to the solubility of the Pell equations, and also to the class group of quadratic fields. Last year, Koymans an...
IAEA Sees Commitment to Operational Safety at Netherlands’ Borssele Nuclear Power Plant, Encourages Continued Improvement（图）
原子能机构 荷兰 博塞尔核电厂 核安全
2023/3/16
An International Atomic Energy Agency (IAEA) team of experts said the operator of the Netherlands’ Borssele nuclear power plant (NPP) is committed to ensuring operational safety and reliability of the...
Rising greenhouse gases pose continued threat to Arctic ozone layer
ozone loss greenhouse gases climate change
2021/8/4
A new study shows that extremely low winter temperatures high in the atmosphere over the Arctic are becoming more frequent and more extreme because of climate patterns associated with global warming. ...
Detailed new ‘reference’ genome for maize shows the plant has deep resources for continued adaptation
reference genome maize deep resources continued adaptation
2017/7/21
A new, much more detailed reference genome for maize, or corn, as it is called in the U.S., will be published in Nature today. In its accounting of the sequence of DNA letters in the plant’s...
商洛学院数学与计算机应用学院初等数论课件Chapter 5 Continued Fractions
商洛学院数学与计算机应用学院 初等数论 课件 Chapter 5 Continued Fractions
2017/4/7
商洛学院数学与计算机应用学院初等数论课件Chapter 5 Continued Fractions.
Anthropometry: continued refinements and new developments of an ancient method
Anthropometry continued refinements new developments of an ancient method
2018/11/12
More than half a million people were displaced for >1 y during a 2012 conflict in Sudan (1). The ongoing violence led civilians to seek shelter in caves and to disperse in mountainous regions for safe...
Health Psychology and life after cancer:Recognizing the need for continued support
Health Psychology life after cancer Recognizing the need
2016/1/28
Increased longevity and the success of medical treatments for all manner of physical illness mean that more and more people are living with chronic conditions. Looking at the World Health Organisation...
Temporal-Spatial Dynamic Characteristic of Vegetation in the Area of Continued Hydropower Station Construction in the Upper Reach of the Yellow River
Temporal-Spatial Dynamic Eco-environmental Impact Hydropower Development Yellow River
2015/12/11
The hydropower station construction produced serious impacts on the regional eco-environment. The most obvious characteristics of the impacts caused by the cascade hydroelectric development are progre...
MODULAR CURVES AND RAMANUJAN’S CONTINUED FRACTION
modular curve Ramanujan continued fraction
2015/7/6
We use arithmetic models of modular curves to establish some properties of Ramanujan’s continued fraction. In particular, we give a new geometric proof that its singular values are algebraic units
th...
ERRATUM TO MODULAR CURVES AND RAMANUJAN’S CONTINUED FRACTION
q-series modular curve Ramanujan continued fraction
2015/7/6
This lemma is already false for k = p quite generally, and our error in the proof of the
lemma occurs in the line beginning “Evidently. . . ” (the formula given for (k, m+jk/p)
in that line is wrong...
Exploration of Burton Mound continued: faunal analysis of a mainland Chumash Site
Burton Mound continued Chumash Site
2014/12/10
The Coastal Chumash resided in permanent towns supplied by an economy of hunting, gathering and fishing practiced in a region possessing high ecological diversity. An elaborate exchange system trading...
Fertility and the fast-track: Continued childbearing among professionals in Sweden, 1991-2009
fertility gender higher education logit model occupation Sweden
2014/11/27
Background: During recent decades women have made considerable advances in education and the labor market, even in fast-track professions such as law, medicine, and academia. While women have entered ...
Fertility and the fast-track: Continued childbearing among professionals in Sweden, 1991–2009
Fertility the fast-track
2014/11/27
During recent decades women have made considerable advances in education and the
labor market, even in fast-track professions such as law, medicine, and academia. While
women have entered high-sta...
Exploration of Burton Mound continued: faunal analysis of a mainland Chumash Site
Burton Mound continued mainland Chumash Site
2014/11/7
The Coastal Chumash resided in permanent towns supplied by an economy of hunting, gathering and fishing practiced in a region possessing high ecological diversity. An elaborate exchange system trading...
Evaluation of a Continued Safe Patient and Handling Program
minimal lift equipment injury, positive behaviors
2014/10/22
Nursing staff have a high risk of on the job injury from patient handling and movement. Safe Patient Handling and Movement programs help reduce injury through education and training to employees. Prog...