Space groups P1 and Cc: how are they doing?

نویسنده

  • Richard E Marsh
چکیده

A survey of recent entries in the Cambridge Structural Database suggests that the percentage of structures described in space groups of inappropriately low symmetry has decreased from about 10% in the early 2000s to less than 5% today for space group Cc, but that for space group P1 it remains close to 8%.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

I-20: ART - Children How Are They Doing Lessons from Research

Worldwide there are over 4,000,000 ART conceived individuals. As fertility rates ‘fall’ in some countries use of ART is increasing with rates of 1.8% of live births in the UK, 4.4% in Denmark etc. Although still the single largest threat to future ART born children is being born twin, triplet or more, other research shows that there is good grounds for monitoring of the health of these children...

متن کامل

-

The development and evolution of any system–person, organization–nation depends on how the system succeeds to bridge the gap between what the system knows and what the system does (with the knowledge). We call this the gap between knowing and doing or the knowing-doing gap. If the system does not do what it knows, it will lose out in competition with other systems, its relative performance in...

متن کامل

Are Uterine and Ovarian Artery Doppler Velocimetry Values Good Pregnancy Predictors in Clomiphene Citrate Cycles?

Background We conducted this prospective study to evaluate the prognostic significance of uterine and ovarian artery Doppler velocimetry in clomiphene citrate (CC) cycles. MaterialsAndMethods A total of 80 patients with unexplained infertility were given 100 mg/day of CC from day 3 to day 7 of their cycles in this current prospective study. On cycle day 3, before administration of CC, each pati...

متن کامل

مسأله حضور در فضا: آگاهی و عاملیت فضایی با تاکید بر فضای عمومی شهری

Public space is the realm of the concrete and substantial presence of the different social groups with different behavior patterns. The concept of space in this sense is an entity that, by the people and through individual and collective action and social relations are formed. The presence of people in the space-in a way that is free from domination, could Strength the urban life. this paper, b...

متن کامل

STABILIZER TOPOLOGY OF HOOPS

In this paper, we introduce the concepts of right, left and product stabilizers on hoops and study some properties and the relation between them.  And we try to find that how they can be equal and investigate that under what condition they can be filter, implicative filter, fantastic and positive implicative filter. Also, we prove that  right and product stabilizers are filters and if they are ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Acta crystallographica. Section B, Structural science

دوره 65 Pt 6  شماره 

صفحات  -

تاریخ انتشار 2009