What's the difference between therein and whereat?

Therein

Definition:

(adv.) In that or this place, time, or thing; in that particular or respect.

Example Sentences:

(1) This paper presents a thermodynamic description of the interaction between divalent protein in solution and monovalent ligand attached to a cell membrane, but freely mobile therein.
(2) These lymphocytes perform the required immunological surveillance of the CNS, and initiate inflammation therein during infectious and autoimmune reactions.
(3) Systolic zone murmurs were recorded in 4.19% of the seafarers, including those with heart defects (1.44%), therein mitral valve insufficiency (0.79%), mitral valve prolapse syndrome (0.39%) and aortal valve stenosis (0.26%).
(4) Based on this linkage, twelve industries are noted to be potentially at high risk due to exposure to neurotoxic chemicals; therein, 18 chemicals are identified as "risk chemicals," primarily used in 8 main groups of products.
(5) The use of both mortality and weight loss data have provided a highly sensitive and reproducible bioassay that can be used to compare relative toxicities of crystals from other subspecies as well as toxic components contained therein.
(6) This is manifested particularly as a substantial amelioration of the severity of the lesions in the brain, and a very marked reduction in the number of fungal units therein.
(7) Permeabilization was selective for plasma membranes, in that high molecular weight probes such as trypan blue or IgG could enter cells, while fluorescent probes previously loaded into lysosomes via endocytosis remained contained therein.
(8) The exposure to doses exceeding 5 cGy impairs the relationship between the nuclear sizes and location therein of the perecentromeric regions of interphase chromosomes which exist in the control and after exposure to 2.5 cGy.
(9) These results suggest that there may be a common mucosal immunologic system, and that repopulation of gut and lung lamina propria may be through the organized lymphoid tissue therein.
(10) The data indicate that 4 crosses the blood-brain barrier to be oxidized by cerebral tissue to the ionic structure 3, which is "locked therein".
(11) Over the next 24 weeks, plasma LH concentrations of castrated birds were resistant, first to a stepwise reduction in daylength from 8 to 2 hr and later to a 2-, 4-, or 6-hr increase therein.
(12) Therein the transformed cells are supplemented and qualitatively altered towards the prevailing monocytic cells of the second step.
(13) The core sequence necessary for enhancer activity was defined therein as a 21 bp nucleotide element, which also showed autonomous replicating activity [EMBO J.
(14) These findings further verify that the observed low-frequency motion (or the so-called dominant low-frequency mode) in a protein molecule is essentially governed by the collective fluctuations of its weak bonds, especially hydrogen bonds, and the internal displacement of the massive atoms therein, as described by the quasi-continuum model.
(15) Replication may involve release of closed minicircles from the center of the kinetoplast and their migration to the peripheral structures, replication of the free minicircles therein, and then peripheral reattachment of the progeny minicircles to the kinetoplast.
(16) In June 2014, she wrote to the Times, baldly claiming that “many old people are a burden on society” .and that “people who cannot accept this argument should work for a few months in a care home where many patients are demented, incontinent, unable to care for themselves, and have no visitors.” The word “burden” is now a staple of most coverage of our ageing population, and the issues therein: most notably, the rising “ old-age dependency ratio ” which measures the number of pensioners as a proportion of those of working age and pensioners, and the question of how far NHS spending is going to stretch (How health innovations can reduce the burden of an ageing population , a Guardian headline from June last year).
(17) The latter case clearly demonstrates the fast-acting effect of the vaccine on account of the heterologous bacterial antigens contained therein.
(18) One of these mediators was identified with gamma interferon (IFN-gamma), mainly on the basis that treatment of supernatants with monoclonal anti-IFN-gamma antibodies markedly reduced the suppressive activity contained therein.
(19) Fine processes arising from their cell bodies or from the stratum 1 plexus passed through the INL to reach the OPL but did not produce long-ranging ramifications therein.
(20) The introduction of an oily retinylacetate solution into the fistula was attended both by an increase of the retinylpalmitate content in the blood plasma and the appearance therein of the retinyl-palmitat-hydrolase activity.